|  | F |
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

|  | F01 - F42 |
Note(s) Guide to the use of this subsection (classes Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F01-F04) The following notes are meant to assist in the use of this part of the classification scheme. In this subsection, subclasses or groups designating "engines" or "pumps" cover methods of operating the same, unless otherwise specifically provided for. In this subsection, the following terms or expressions are used with the meanings indicated: "engine" means a device for continuously converting fluid energy into mechanical power. Thus, this term includes, for example, steam piston engines or steam turbines, per se, or internal-combustion piston engines, but it excludes single-stroke devices. "Engine" also includes the fluid-motive portion of a meter unless such portion is particularly adapted for use in a meter; "pump" means a device for continuously raising, forcing, compressing, or exhausting fluid by mechanical or other means. Thus, this term includes fans or blowers; "machine" means a device which could equally be an engine and a pump, and not a device which is restricted to an engine or one which is restricted to a pump; "positive displacement" means the way the energy of a working fluid is transformed into mechanical energy, in which variations of volume created by the working fluid in a working chamber produce equivalent displacements of the mechanical member transmitting the energy, the dynamic effect of the fluid being of minor importance, and vice versa; "non-positive displacement" means the way the energy of a working fluid is transformed into mechanical energy, by transformation of the energy of the working fluid into kinetic energy, and vice versa; "oscillating-piston machine" means a positive-displacement machine in which a fluid-engaging work-transmitting member oscillates. This definition applies also to engines and pumps; "rotary-piston machine" means a positive-displacement machine in which a fluid-engaging work-transmitting member rotates about a fixed axis or about an axis moving along a circular or similar orbit. This definition applies also to engines and pumps; "rotary piston" means the work-transmitting member of a rotary-piston machine and may be of any suitable form, e.g., like a toothed gear; "cooperating members" means the "oscillating piston" or "rotary piston" and another member, e.g., the working-chamber wall, which assists in the driving or pumping action; "movement of the co-operating members" is to be interpreted as relative, so that one of the "co-operating members" may be stationary, even though reference may be made to its rotational axis, or both may move; "teeth or tooth equivalents" include lobes, projections or abutments; "internal-axis type" means that the rotational axes of the inner and outer co-operating members remain at all times within the outer member, e.g., in a similar manner to that of a pinion meshing with the internal teeth of a ring gear; "free piston" means a piston of which the length of stroke is not defined by any member driven thereby; "cylinders" means positive-displacement working chambers in general. Thus, this term is not restricted to cylinders of circular cross-section; "main shaft" means the shaft which converts reciprocating piston motion into rotary motion or vice versa; "plant" means an engine together with such additional apparatus as is necessary to run the engine. For example, a steam engine plant includes a steam engine and means for generating the steam; "working fluid" means the driven fluid in a pump and the driving fluid in an engine. The working fluid may be in a gaseous state, i.e., compressible, or liquid. In the former case coexistence of two states is possible; "steam" includes condensable vapours in general, and "special vapour" is used when steam is excluded; "reaction type" as applied to non-positive-displacement machines or engines means machines or engines in which pressure/velocity transformation takes place wholly or partly in the rotor. Mmachines or engines with no, or only slight, pressure/velocity transformation in the rotor are called "impulse type". In this subsection: cyclically operating valves, lubricating, gas-flow silencers or exhaust apparatus, or cooling are classified in subclasses Fulltext... Hierarchy... Expanded...F01L, Fulltext... Hierarchy... Expanded...F01M, Fulltext... Hierarchy... Expanded...F01N, Fulltext... Hierarchy... Expanded...F01P irrespective of their stated application, unless their classifying features are peculiar to their application, in which case they are classified only in the relevant subclass of classes Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F01-F04; lubricating, gas-flow silencers or exhaust apparatus, or cooling of machines or engines are classified in subclasses Fulltext... Hierarchy... Expanded...F01M, Fulltext... Hierarchy... Expanded...F01N, Fulltext... Hierarchy... Expanded...F01P except for those peculiar to steam engines which are classified in subclass Fulltext... Hierarchy... Expanded...F01B. For use of this subsection with a good understanding, it is essential to remember, so far as subclasses Fulltext... Hierarchy... Expanded...F01B, Fulltext... Hierarchy... Expanded...F01C, Fulltext... Hierarchy... Expanded...F01D, Fulltext... Hierarchy... Expanded...F03B, and Fulltext... Hierarchy... Expanded...F04B, Fulltext... Hierarchy... Expanded...F04C, Fulltext... Hierarchy... Expanded...F04D, which form its skeleton, are concerned: the principle which resides in their elaboration, the classifying characteristics which they call for, and their complementarity. Principle This concerns essentially the subclasses listed above. Other subclasses, notably those of class Fulltext... Hierarchy... Expanded...F02, which cover better-defined matter, are not considered here. Each subclass covers fundamentally a genus of apparatus (engine or pump) and by extension covers equally "machines" of the same kind. Two different subjects, one having a more general character than the other, are thus covered by the same subclass. Subclasses Fulltext... Hierarchy... Expanded...F01B, Fulltext... Hierarchy... Expanded...F03B, Fulltext... Hierarchy... Expanded...F04B, beyond the two subjects which they cover, have further a character of generality in relation to other subclasses concerning the different species of apparatus in the genus concerned. This generality applies as well for the two subjects dealt with, without these always being in relation to the same subclasses. Thus, subclass Fulltext... Hierarchy... Expanded...F03B, in its part dealing with "machines", should be considered as being the general class relating to subclasses Fulltext... Hierarchy... Expanded...F04B, Fulltext... Hierarchy... Expanded...F04C, and in its part dealing with "engines" as being general in relation to subclass Fulltext... Hierarchy... Expanded...F03C. Characteristics The principal classifying characteristic of the subclass is that of genera of apparatus, of which there are three possible: Machines; engines; pumps. As stated above, "machines" are always associated with one of the other two genera. These main genera are subdivided according to the general principles of operation of the apparatus: Positive displacement; non-positive displacement. The positive displacement apparatus are further subdivided according to the ways of putting into effect the principle of operation, that is, to the kind of apparatus: Simple reciprocating piston; rotary or oscillating piston; other kind. Another classifying characteristic is that of the working fluid, in respect of which three kinds of apparatus are possible, namely: Liquid and elastic fluid; elastic fluid; liquid. Complementarity This resides in association of pairs of the subclasses listed above, according to the characteristics under consideration in respect of kind of apparatus or working fluid. The subclasses concerned with the various principles, characteristics and complementarity are shown in the following table: It is seen from this table that: For the same kind of apparatus in a given genus, the characteristic of "working fluid" associates: Fulltext... Hierarchy... Expanded...F01B and Fulltext... Hierarchy... Expanded...F04B Fulltext... Hierarchy... Expanded...F01C and Fulltext... Hierarchy... Expanded...F04C Machines Fulltext... Hierarchy... Expanded...F01D and Fulltext... Hierarchy... Expanded...F03B Fulltext... Hierarchy... Expanded...F01B and Fulltext... Hierarchy... Expanded...F03C Fulltext... Hierarchy... Expanded...F01C and Fulltext... Hierarchy... Expanded...F03C Engines Fulltext... Hierarchy... Expanded...F01D and Fulltext... Hierarchy... Expanded...F03B For the same kind of working fluid, the "apparatus" characteristic relates subclasses in the same way as considerations of relative generality.

ENGINEERING IN GENERAL

|  | F16 |
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

|  | F16H |
GEARING

|  | F16H |
3. Note(s) In this subclass, sets of rigidly-connected members are regarded as single members. In this subclass, the following terms or expressions are used ith the meanings indicated: "toothed gearing" includes worm gearing and other gearing involving at least one wheel or sector provided with teeth or the equivalent, except gearing with chains or toothed belts, which is treated as friction gearing; "conveying motion" includes transmitting energy, and means that the applied and resultant motions are of the same kind, though they may differ in, e.g. speed, direction, extent; "rotary" implies that the motion may continue indefinitely. "oscillating" means moving about an axis to an extent which is limited by the construction of the gearing and which may exceed one revolution, the movement being alternately forwards and backwards during continued operation of the gearing; "reciprocating" means moving substantially in a straight line, the movement being alternately forwards and backwards during continued operation of the gearing; "reversing" or "reversal" means that an applied movement in one direction may produce a resultant movement in either of two opposed directions at will; "central gears" includes any gears whose axis is the main axis of the gearing. Attention is drawn to the following places:
   Fulltext... Hierarchy... Expanded...A01D 69/06 | Gearings in harvesting machines |
   Fulltext... Hierarchy... Expanded...A63H 31/00 | Gearing for toys |
   Fulltext... Hierarchy... Expanded...B21B 35/12 | Toothed-weel gearing for metal-rolling mills |
   Fulltext... Hierarchy... Expanded...B60K | Arrangement of transmissions in vehicles |
   Fulltext... Hierarchy... Expanded...B61C 9/00 | Transmissions or railway locomotives |
   Fulltext... Hierarchy... Expanded...B62D 3/00 | Vehicle steering gears |
   Fulltext... Hierarchy... Expanded...B62M | Transmissions for cycles |
   Fulltext... Hierarchy... Expanded...B63H 23/00 | Transmissions for marine propulsion |
   Fulltext... Hierarchy... Expanded...B63H 25/00 | Marine steering gears |
   Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F01-F04 | Machines, engines, pumps |
   Fulltext... Hierarchy... Expanded...F15B 15/00 | Gearings associated with fluid-actuated devices |
   Fulltext... Hierarchy... Expanded...G01D 5/04 | Gearing used in indicating or recording apparatus in connection with measuring devices |
   Fulltext... Hierarchy... Expanded...H03J 1/00 | Driving arrangements for tuning resonant circuits |
   Fulltext... Hierarchy... Expanded...H04L 13/04 | Driving mechanisms for apparatus for transmission of coded digital information. [5] |

|  | F16H |
Subclass index
GEARINGS NOT LIMITED TO ROTARY MOTION |
Mechanical gearings |
using levers, links, or cams | 21/00 - 25/00
using intermittently-driving members | 27/00 - 31/00
other gearings; combinations of gearings | 19/00, 33/00, 35/00; 37/00
details | 51/00 - 57/00
Fluid gearing | 43/00
GEARINGS FOR CONVEYING ROTARY MOTION |
Toothed gearings | 1/00, 3/00
Using endless flexible members | 7/00, 9/00
Other friction gearing | 13/00, 15/00
Fluid gearing | 39/00, 41/00, 45/00
Using intermittently-driving gearing | 29/00
CONTROL |
of change-speed- or reversing-gearings conveying rotary motion | 59/00 - 63/00
COMBINATIONS OF GEARINGS; DIFFERENTIAL GEARINGS; OTHER GEARINGS | 47/00; 48/00; 49/00
GENERAL DETAILS OF GEARINGS | 57/00

|  | F16H 1/00 - F16H 3/00 |
Toothed gearings for conveying rotary motion

|  | F16H 1/00 |
Toothed gearings for conveying rotary motion (specific for conveying rotary motion with variable gear ratio or for reversing rotary motion Fulltext... Hierarchy... Expanded...F16H 3/00)

|  | F16H 1/02 |
· | without gears having orbital motion

|  | F16H 1/04 |
· · | involving only two intermeshing members

|  | F16H 1/06 |
· · · | with parallel axes

|  | F16H 1/08 |
· · · · | the members having helical, herring-bone, or like teeth

|  | F16H 1/10 |
· · · · | one of the members being internally toothed

|  | F16H 1/12 |
· · · | with non-parallel axes

|  | F16H 1/14 |
· · · · | comprising conical gears only

|  | F16H 1/16 |
· · · · | comprising worm and worm-wheel

|  | F16H 1/18 |
· · · · | the members having helical, herring-bone, or like teeth (Fulltext... Hierarchy... Expanded...F16H 1/14 takes precedence)

|  | F16H 1/20 |
· · | involving more than two intermeshing members

|  | F16H 1/22 |
· · · | with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts

|  | F16H 1/24 |
· · | involving gears essentially having intermeshing elements other than involute or cycloidal teeth (Fulltext... Hierarchy... Expanded...F16H 1/16 takes precedence)

|  | F16H 1/26 |
· · | Special means compensating for misalignment of axes

|  | F16H 1/28 |
· | with gears having orbital motion

|  | F16H 1/30 |
· · | in which an orbital gear has an axis crossing the main axis of the gearing and has helical teeth or is a worm

|  | F16H 1/32 |
· · | in which the central axis of the gearing lies inside the periphery of an orbital gear

|  | F16H 1/34 |
· · | involving gears essentially having intermeshing elements other than involute or cycloidal teeth (in worm gearing Fulltext... Hierarchy... Expanded...F16H 1/30)

|  | F16H 1/36 |
· · | with two central gears coupled by intermeshing orbital gears

|  | F16H 1/38 |
( transferred to Fulltext... Hierarchy... Expanded...F16H 48/00 )

|  | F16H 1/40 |
( transferred to Fulltext... Hierarchy... Expanded...F16H 48/08 )

|  | F16H 1/42 |
( transferred to Fulltext... Hierarchy... Expanded...F16H 48/10 )

|  | F16H 1/44 |
( transferred to Fulltext... Hierarchy... Expanded...F16H 48/20 )

|  | F16H 1/445 |
( transferred to Fulltext... Hierarchy... Expanded...F16H 48/30 )

|  | F16H 1/45 - F16H 1/455 |
( transferred to Fulltext... Hierarchy... Expanded...F16H 48/20 )

|  | F16H 1/46 |
· · | Systems consisting of a plurality of gear trains, each with orbital gears

|  | F16H 1/48 |
· · | Special means compensating for misalignment of axes

|  | F16H 3/00 |
Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion (speed-changing or reversing mechanisms Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F16H 59/00-F16H 63/00)

|  | F16H 3/02 |
· | without gears having orbital motion

|  | F16H 3/04 - F16H 3/20 |
Note(s) In groups Fulltext... Hierarchy... Expanded...F16H 3/08, Fulltext... Hierarchy... Expanded...F16H 3/16 and Fulltext... Hierarchy... Expanded...F16H 3/20, gears which can be put out of mesh are not taken into consideration if they are used for reversal only. [5]

|  | F16H 3/04 |
· · | with internally-toothed gears

|  | F16H 3/06 |
· · | with worm and worm-wheel or gears essentially having helical or herring-bone teeth

|  | F16H 3/08 |
· · | exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts

|  | F16H 3/083 |
· · · | with radially acting and axially controlled clutching members, e.g. sliding keys [5]

|  | F16H 3/085 |
· · · | with more than one output shaft [5]

|  | F16H 3/087 |
· · · | characterised by the disposition of the gears (Fulltext... Hierarchy... Expanded...F16H 3/083, Fulltext... Hierarchy... Expanded...F16H 3/085 take precedence) [5]

|  | F16H 3/087 |
Note(s) When counting the countershafts, the reverse countershaft is not taken into consideration if it is used for reversal only. [5]

|  | F16H 3/089 |
· · · · | all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved [5]

|  | F16H 3/091 |
· · · · | including a single countershaft [5]

|  | F16H 3/093 |
· · · · | with two or more countershafts [5]

|  | F16H 3/095 |
· · · · · | with means for ensuring an even distribution of torque between the countershafts [5]

|  | F16H 3/097 |
· · · · · | the input and output shafts being aligned on the same axis [5]

|  | F16H 3/10 |
· · · | with one or more one-way clutches as an essential feature

|  | F16H 3/12 |
· · · | with means for synchronisation not incorporated in the clutches (synchronised clutches Fulltext... Hierarchy... Expanded...F16D 23/02)

|  | F16H 3/14 |
· · · | Gearings for reversal only

|  | F16H 3/16 |
· · | essentially with both gears that can be put out of gear and continuously-meshing gears that can be disengaged from their shafts

|  | F16H 3/18 |
· · · | Gearings for reversal only

|  | F16H 3/20 |
· · | exclusively or essentially using gears that can be moved out of gear

|  | F16H 3/22 |
· · · | with gears shiftable only axially

|  | F16H 3/24 |
· · · · | with driving and driven shafts coaxial

|  | F16H 3/26 |
· · · · · | and two or more additional shafts

|  | F16H 3/28 |
· · · · · · | an additional shaft being coaxial with the main shafts

|  | F16H 3/30 |
· · · · | with driving and driven shafts not coaxial

|  | F16H 3/32 |
· · · · · | and an additional shaft

|  | F16H 3/34 |
· · · | with gears shiftable otherwise than only axially

|  | F16H 3/36 |
· · · | with a single gear meshable with any of a set of coaxial gears of different diameters

|  | F16H 3/38 |
· · · | with synchro-meshing

|  | F16H 3/40 |
· · · | Gearings for reversal only

|  | F16H 3/42 |
· · | with gears having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable

|  | F16H 3/44 |
· | using gears having orbital motion

|  | F16H 3/46 |
· · | Gearings having only two central gears, connected by orbital gears (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F16H 3/68-F16H 3/78 take precedence)

|  | F16H 3/48 |
· · · | with single orbital gears or pairs of rigidly-connected orbital gears

|  | F16H 3/50 |
· · · · | comprising orbital conical gears

|  | F16H 3/52 |
· · · · | comprising orbital spur gears

|  | F16H 3/54 |
· · · · · | one of the central gears being internally toothed and the other externally toothed

|  | F16H 3/56 |
· · · · · | both central gears being sun gears

|  | F16H 3/58 |
· · · | with sets of orbital gears, each consisting of two or more intermeshing orbital gears

|  | F16H 3/60 |
· · · | Gearings for reversal only

|  | F16H 3/62 |
· · | Gearings having three or more central gears (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F16H 3/68-F16H 3/78 take precedence)

|  | F16H 3/64 |
· · · | composed of a number of gear trains, the drive always passing through all the trains, each train having not more than one connection for driving another train

|  | F16H 3/66 |
· · · | composed of a number of gear trains without drive passing from one train to another

|  | F16H 3/68 |
· · | in which an orbital gear has an axis crossing the main axis of the gearing and has helical teeth or is a worm

|  | F16H 3/70 |
· · | in which the central axis of the gearing lies inside the periphery of an orbital gear

|  | F16H 3/72 |
· · | with a secondary drive, e.g. regulating motor, in order to vary speed continuously

|  | F16H 3/74 |
· · | Complexes, not using actuatable speed-changing or regulating members, e.g. with gear ratio determined by free play of frictional or other forces

|  | F16H 3/76 |
· · | with an orbital gear having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable

|  | F16H 3/78 |
· · | Special adaptation of synchronisation mechanisms to these gearings

|  | F16H 7/00 - F16H 9/00 |
Gearing for conveying rotary motion by endless flexible members (flexible members, e.g. belts, chains per se Fulltext... Hierarchy... Expanded...F16G)

|  | F16H 7/00 |
Gearings for conveying rotary motion by endless flexible members (specific for conveying rotary motion with variable gear ratio or for reversing rotary motion Fulltext... Hierarchy... Expanded...F16H 9/00)

|  | F16H 7/02 |
· | with belts; with V-belts

|  | F16H 7/04 |
· | with ropes

|  | F16H 7/06 |
· | with chains

|  | F16H 7/08 |
· | Means for varying tension of belts, ropes, or chains (pulleys of adjustable construction Fulltext... Hierarchy... Expanded...F16H 55/52)

|  | F16H 7/10 |
· · | by adjusting the axis of a pulley

|  | F16H 7/12 |
· · · | of an idle pulley

|  | F16H 7/14 |
· · · | of a driving or driven pulley

|  | F16H 7/16 |
· · · · | without adjusting the driving or driven shaft

|  | F16H 7/18 |
· | Means for guiding or supporting belts, ropes, or chains (construction of pulleys Fulltext... Hierarchy... Expanded...F16H 55/36)

|  | F16H 7/20 |
· · | Mountings for rollers or pulleys

|  | F16H 7/22 |
· | Belt, rope, or chain shifters

|  | F16H 7/24 |
· | Equipment for mounting belts, ropes, or chains

|  | F16H 9/00 |
Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members (control of change-speed or reversing-gearings conveying rotary motion Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F16H 59/00-F16H 63/00)

|  | F16H 9/02 |
· | without members having orbital motion

|  | F16H 9/04 |
· · | using belts, V-belts, or ropes (with toothed belts Fulltext... Hierarchy... Expanded...F16H 9/24; pulleys of adjustable construction Fulltext... Hierarchy... Expanded...F16H 55/52)

|  | F16H 9/06 |
· · · | engaging a stepped pulley

|  | F16H 9/08 |
· · · | engaging a conical drum (Fulltext... Hierarchy... Expanded...F16H 9/12 takes precedence)

|  | F16H 9/10 |
· · · | engaging a pulley provided with radially-actuatable elements carrying the belt

|  | F16H 9/12 |
· · · | engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members

|  | F16H 9/14 |
· · · · | using only one pulley built-up out of adjustable conical parts

|  | F16H 9/16 |
· · · · | using two pulleys, both built-up out of adjustable conical parts

|  | F16H 9/18 |
· · · · · | only one flange of each pulley being adjustable

|  | F16H 9/20 |
· · · · · | both flanges of the pulleys being adjustable

|  | F16H 9/22 |
· · · | specially adapted for ropes

|  | F16H 9/24 |
· · | using chains, toothed belts, belts in the form of links; Chains or belts specially adapted to such gearing (toothed belts Fulltext... Hierarchy... Expanded...F16G 1/28; V-belts in the form of links Fulltext... Hierarchy... Expanded...F16G 5/18; toothed V-belts Fulltext... Hierarchy... Expanded...F16G 5/20)

|  | F16H 9/26 |
· | with members having orbital motion

|  | F16H 13/00 - F16H 15/00 |
Other friction gearing for conveying rotary motion

|  | F16H 13/00 |
Gearing for conveying rotary motion with constant gear ratio by friction between rotary members (specific for conveying rotary motion with variable gear ratio or for reversing rotary motion Fulltext... Hierarchy... Expanded...F16H 15/00)

|  | F16H 13/02 |
· | without members having orbital motion

|  | F16H 13/04 |
· · | with balls or with rollers acting in a similar manner

|  | F16H 13/06 |
· | with members having orbital motion

|  | F16H 13/08 |
· · | with balls or with rollers acting in a similar manner

|  | F16H 13/10 |
· | Means for influencing the pressure between the members

|  | F16H 13/12 |
· · | by magnetic forces

|  | F16H 13/14 |
· · | for automatically varying the pressure mechanically

|  | F16H 15/00 |
Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members (control of change-speed or reversing-gearings conveying rotary motion Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F16H 59/00-F16H 63/00)

|  | F16H 15/01 |
· | characterised by the use of a magnetisable powder or liquid as friction medium between the rotary members [2]

|  | F16H 15/02 |
· | without members having orbital motion

|  | F16H 15/04 |
· · | Gearings providing a continuous range of gear ratios

|  | F16H 15/06 |
· · · | in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B

|  | F16H 15/08 |
· · · · | in which the member B is a disc with a flat or approximately-flat friction surface

|  | F16H 15/10 |
· · · · · | in which the axes of the two members cross or intersect

|  | F16H 15/12 |
· · · · · · | in which one or each member is duplicated, e.g. for obtaining better transmission, for lessening the reaction forces on the bearings

|  | F16H 15/14 |
· · · · · | in which the axes of the members are parallel or approximately parallel

|  | F16H 15/16 |
· · · · | in which the member B has a conical friction surface

|  | F16H 15/18 |
· · · · · | externally

|  | F16H 15/20 |
· · · · · · | co-operating with the outer rim of the member A, which is perpendicular or nearly perpendicular to the friction surface of the member B

|  | F16H 15/22 |
· · · · · · | the axes of the members being parallel or approximately parallel

|  | F16H 15/24 |
· · · · · | internally

|  | F16H 15/26 |
· · · · | in which the member B has a spherical friction surface centered on its axis of revolution

|  | F16H 15/28 |
· · · · · | with external friction surface

|  | F16H 15/30 |
· · · · · | with internal friction surface

|  | F16H 15/32 |
· · · · | in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line

|  | F16H 15/34 |
· · · · · | with convex friction surface

|  | F16H 15/36 |
· · · · · | with concave friction surface, e.g. a hollow toroid surface

|  | F16H 15/38 |
· · · · · · | with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces

|  | F16H 15/40 |
· · · | in which two members co-operate by means of balls, or rollers of uniform effective diameter, not mounted on shafts

|  | F16H 15/42 |
· · · | in which two members co-operate by means of rings or by means of parts of endless flexible members pressed between the first-mentioned members

|  | F16H 15/44 |
· · · | in which two members of non-uniform effective diameter directly co-operate with one another

|  | F16H 15/46 |
· · | Gearings providing a discontinuous or stepped range of gear ratios

|  | F16H 15/48 |
· | with members having orbital motion

|  | F16H 15/50 |
· · | Gearings providing a continuous range of gear ratios

|  | F16H 15/52 |
· · · | in which a member of uniform effective diameter mounted on a shaft may co-operate with different parts of another member

|  | F16H 15/54 |
· · · | in which two members co-operate by means of rings or by means of parts of endless flexible members pressed between the first-mentioned members

|  | F16H 15/56 |
· · | Gearings providing a discontinuous or stepped range of gear ratios

|  | F16H 19/00 |
Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion (with intermittently-driving members Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F16H 27/00-F16H 31/00; rope or like tackle for lifting or haulage Fulltext... Hierarchy... Expanded...B66D 3/00)

|  | F16H 19/02 |
· | for interconverting rotary motion and reciprocating motion

|  | F16H 19/04 |
· · | comprising a rack

|  | F16H 19/06 |
· · | comprising an endless flexible member

|  | F16H 19/08 |
· | for interconverting rotary motion and oscillating motion

|  | F16H 21/00 - F16H 25/00 |
Gearing for conveying or converting motion by means of levers, links, or cams (combinations of gearings of different types Fulltext... Hierarchy... Expanded...F16H 37/00)

|  | F16H 21/00 |
Gearings comprising primarily only links or levers, with or without slides

|  | F16H 21/02 |
· | the movements of two or more independently-moving members being combined into a single movement

|  | F16H 21/04 |
· | Guiding mechanisms, e.g. for straight-line guidance (for drawing-machines Fulltext... Hierarchy... Expanded...B43L)

|  | F16H 21/06 |
· | which can be made ineffective when desired

|  | F16H 21/08 |
· · | by pushing a reciprocating rod out of its operative position

|  | F16H 21/10 |
· | all movement being in, or parallel to, a single plane

|  | F16H 21/12 |
· · | for conveying rotary motion

|  | F16H 21/14 |
· · · | by means of cranks, eccentrics, or like members fixed to one rotary member and guided along tracks on the other

|  | F16H 21/16 |
· · | for interconverting rotary motion and reciprocating motion

|  | F16H 21/18 |
· · · | Crank gearings; Eccentric gearings

|  | F16H 21/20 |
· · · · | with adjustment of throw (adjustable cranks or eccentrics Fulltext... Hierarchy... Expanded...F16C 3/28; adjustable connecting-rods Fulltext... Hierarchy... Expanded...F16C 7/06)

|  | F16H 21/22 |
· · · · | with one connecting-rod and one guided slide to each crank or eccentric

|  | F16H 21/24 |
· · · · · | without further links or guides

|  | F16H 21/26 |
· · · · · | with toggle action

|  | F16H 21/28 |
· · · · · | with cams or additional guides

|  | F16H 21/30 |
· · · · · | with members having rolling contact

|  | F16H 21/32 |
· · · · · | with additional members comprising only pivoted links or arms

|  | F16H 21/34 |
· · · · | with two or more connecting-rods to each crank or eccentric

|  | F16H 21/36 |
· · · · | without swinging connecting-rod, e.g. with epicyclic parallel motion, slot-and- crank motion

|  | F16H 21/38 |
· · · · | with means for temporary energy accumulation, e.g. to overcome dead-centre positions

|  | F16H 21/40 |
· · | for interconverting rotary motion and oscillating motion

|  | F16H 21/42 |
· · · | with adjustable throw

|  | F16H 21/44 |
· · | for conveying or interconverting oscillating or reciprocating motions

|  | F16H 21/46 |
· | with movements in three dimensions

|  | F16H 21/48 |
· · | for conveying rotary motion

|  | F16H 21/50 |
· · | for interconverting rotary motion and reciprocating motion (Fulltext... Hierarchy... Expanded...F16H 23/00 takes precedence)

|  | F16H 21/52 |
· · | for interconverting rotary motion and oscillating motion

|  | F16H 21/54 |
· · | for conveying or interconverting oscillating or reciprocating motions

|  | F16H 23/00 |
Wobble-plate gearings; Oblique-crank gearings

|  | F16H 23/02 |
· | with adjustment of throw by changing the position of the wobble-member (Fulltext... Hierarchy... Expanded...F16H 29/04, Fulltext... Hierarchy... Expanded...F16H 33/10 take precedence)

|  | F16H 23/04 |
· | with non-rotary wobble-members

|  | F16H 23/06 |
· · | with sliding members hinged to reciprocating members

|  | F16H 23/08 |
· · | connected to reciprocating members by connecting-rods

|  | F16H 23/10 |
· | with rotary wobble-plates with plane surfaces

|  | F16H 25/00 |
Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms

|  | F16H 25/02 |
· | the movements of two or more independently-moving members being combined into a single movement

|  | F16H 25/04 |
· | for conveying rotary motion

|  | F16H 25/06 |
· · | with intermediate members guided along tracks on both rotary members

|  | F16H 25/08 |
· | for interconverting rotary motion and reciprocating motion (Fulltext... Hierarchy... Expanded...F16H 23/00 takes precedence)

|  | F16H 25/10 |
· · | with adjustable throw (adjustable cams Fulltext... Hierarchy... Expanded...F16H 53/04)

|  | F16H 25/12 |
· · | with reciprocation along the axis of rotation, e.g. gearings with helical grooves and automatic reversal (screw mechanisms without automatic reversal Fulltext... Hierarchy... Expanded...F16H 25/20)

|  | F16H 25/14 |
· · | with reciprocation perpendicular to the axis of rotation (Fulltext... Hierarchy... Expanded...F16H 21/36 takes precedence)

|  | F16H 25/16 |
· | for interconverting rotary motion and oscillating motion

|  | F16H 25/18 |
· | for conveying or interconverting oscillating or reciprocating motions

|  | F16H 25/20 |
· · | Screw mechanisms (with automatic reversal Fulltext... Hierarchy... Expanded...F16H 25/12)

|  | F16H 25/22 |
· · · | with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members

|  | F16H 25/24 |
· · · | Elements essential to such mechanisms, e.g. screws, nuts (Fulltext... Hierarchy... Expanded...F16H 25/22 takes precedence)

|  | F16H 27/00 - F16H 31/00 |
Gearings with intermittently-driving members

|  | F16H 27/00 |
Step-by-step mechanisms without freewheel members, e.g. Geneva drives (rotary gearings with cyclically-varying velocity ratio Fulltext... Hierarchy... Expanded...F16H 35/02; impulse couplings Fulltext... Hierarchy... Expanded...F16D 5/00; clockwork escapements Fulltext... Hierarchy... Expanded...G04B 15/00)

|  | F16H 27/02 |
· | with at least one reciprocating or oscillating transmission member

|  | F16H 27/04 |
· | for converting continuous rotation into a step-by-step rotary movement

|  | F16H 27/06 |
· · | Mechanisms with driving pins in driven slots, e.g. Geneva drives

|  | F16H 27/08 |
· · | with driving toothed gears with interrupted toothing

|  | F16H 27/10 |
· · | obtained by means of disengageable transmission members, combined or not combined with mechanisms according to group Fulltext... Hierarchy... Expanded...F16H 27/06 or Fulltext... Hierarchy... Expanded...F16H 27/08

|  | F16H 29/00 |
Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action (freewheels Fulltext... Hierarchy... Expanded...F16D 41/00)

|  | F16H 29/02 |
· | between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts (Fulltext... Hierarchy... Expanded...F16H 29/20, Fulltext... Hierarchy... Expanded...F16H 29/22 take precedence)

|  | F16H 29/04 |
· · | in which the transmission ratio is changed by adjustment of a crank, an eccentric, a wobble-plate, or a cam, on one of the shafts

|  | F16H 29/06 |
· · · | with concentric shafts, an annular intermediate member moving around and being supported on an adjustable crank or eccentric

|  | F16H 29/08 |
· · | in which the transmission ratio is changed by adjustment of the path of movement, the location of the pivot, or the effective length, of an oscillating connecting member

|  | F16H 29/10 |
· · | in which the transmission ratio is changed by directly acting on the intermittently driving members

|  | F16H 29/12 |
· | between rotary driving and driven members (Fulltext... Hierarchy... Expanded...F16H 29/20, Fulltext... Hierarchy... Expanded...F16H 29/22 take precedence)

|  | F16H 29/14 |
· · | in which the transmission ratio is changed by adjustment of an otherwise stationary guide member for the intermittently-driving members

|  | F16H 29/16 |
· · | in which the transmission ratio is changed by adjustment of the distance between the axes of the rotary members

|  | F16H 29/18 |
· · · | in which the intermittently-driving members slide along approximately radial guides while rotating with one of the rotary members

|  | F16H 29/20 |
· | the intermittently-acting members being shaped as worms, screws, or racks

|  | F16H 29/22 |
· | with automatic speed change

|  | F16H 31/00 |
Other gearings with freewheeling members or other intermittently-driving members (Fulltext... Hierarchy... Expanded...F16H 21/00, Fulltext... Hierarchy... Expanded...F16H 23/00, Fulltext... Hierarchy... Expanded...F16H 25/00 take precedence; gearings involving the use of automatic changing-mechanisms, e.g. cyclically-actuated reversal gearings, see the appropriate groups)

|  | F16H 33/00 |
Gearings based on repeated accumulation and delivery of energy

|  | F16H 33/02 |
· | Rotary transmissions with mechanical accumulators, e.g. weights, springs, intermittently-connected flywheels

|  | F16H 33/04 |
· · | Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought

|  | F16H 33/06 |
· · · | based essentially on spring action (ratchet slip couplings Fulltext... Hierarchy... Expanded...F16D 7/04)

|  | F16H 33/08 |
· · · | based essentially on inertia

|  | F16H 33/10 |
· · · · | with gyroscopic action, e.g. comprising wobble-plates, oblique cranks

|  | F16H 33/12 |
· · · · | with a driving member connected differentially with both a driven member and an oscillatory member with large resistance to movement, e.g. Constantinesco gearing

|  | F16H 33/14 |
· · · · | having orbital members influenced by regulating masses

|  | F16H 33/16 |
· · · · · | which have their own free motion, or consist of fluid

|  | F16H 33/18 |
· · · · · | of which the motion is constrained

|  | F16H 33/20 |
· | for interconversion, based essentially on inertia, of rotary motion and reciprocating or oscillating motion

|  | F16H 35/00 |
Gearings or mechanisms with other special functional features

|  | F16H 35/02 |
· | for conveying rotary motion with cyclically-varying velocity ratio (speed-changing mechanisms operating cyclically, see the appropriate groups)

|  | F16H 35/04 |
( transferred to Fulltext... Hierarchy... Expanded...F16H 48/12 )

|  | F16H 35/06 |
· | Gearings designed to allow relative movement between supports thereof without ill effects (Fulltext... Hierarchy... Expanded...F16H 1/26, Fulltext... Hierarchy... Expanded...F16H 1/48 take precedence)

|  | F16H 35/08 |
· | for adjustment of members on moving parts from a stationary place

|  | F16H 35/10 |
· | Arrangements or devices for absorbing overload or preventing damage by overload (couplings for transmitting rotation Fulltext... Hierarchy... Expanded...F16D)

|  | F16H 35/12 |
· | Transmitting mechanisms with delayed effect (vibration- or shock-dampers in general Fulltext... Hierarchy... Expanded...F16F)

|  | F16H 35/14 |
· | Mechanisms with only two stable positions, e.g. acting at definite angular positions

|  | F16H 35/16 |
· | Mechanisms for movements or movement relations conforming to mathematical formulae (devices in which computing operations are performed mechanically Fulltext... Hierarchy... Expanded...G06G 3/00)

|  | F16H 35/18 |
· | Turning devices for rotatable members, e.g. shafts (starting devices for internal-combustion engines Fulltext... Hierarchy... Expanded...F02N)

|  | F16H 37/00 |
Combinations of mechanical gearings, not hereinbefore provided for (applications of underdrives or overdrives in motor vehicles, combinations with differential gearings in motor vehicles Fulltext... Hierarchy... Expanded...B60K)

|  | F16H 37/02 |
· | comprising essentially only toothed or friction gearings

|  | F16H 37/04 |
· · | Combinations of toothed gearings only (Fulltext... Hierarchy... Expanded...F16H 37/06 takes precedence)

|  | F16H 37/06 |
· · | with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts

|  | F16H 37/08 |
· · · | with differential gearing

|  | F16H 37/10 |
· · · · | at both ends of intermediate shafts

|  | F16H 37/12 |
· | Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these three types (Fulltext... Hierarchy... Expanded...F16H 21/14, Fulltext... Hierarchy... Expanded...F16H 21/28, Fulltext... Hierarchy... Expanded...F16H 21/30 take precedence; toothed or friction gearing or cam gearing, with only an additional lever or link, see the appropriate group for the main gearing)

|  | F16H 37/14 |
· · | the movements of two or more independently-moving members being combined into a single movement

|  | F16H 37/16 |
· · | with a driving or driven member which both rotates or oscillates on its axis and reciprocates

|  | F16H 39/00 - F16H 47/00 |
Fluid gearing (fluid actuators Fulltext... Hierarchy... Expanded...F15B; couplings or clutches with a fluid or semifluid as power-transmitting means Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F16D 31/00-F16D 39/00; fluid-resistance brakes Fulltext... Hierarchy... Expanded...F16D 57/00) [3]

|  | F16H 39/00 |
Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution (control of exclusively fluid gearing Fulltext... Hierarchy... Expanded...F16H 61/38; application to lifting or pushing equipment Fulltext... Hierarchy... Expanded...B66F) [5]

|  | F16H 39/01 |
· | Pneumatic gearing; Gearing working with subatmospheric pressure (pneumatic hammers Fulltext... Hierarchy... Expanded...B25D 9/00) [2]

|  | F16H 39/02 |
· | with liquid motors at a distance from liquid pumps

|  | F16H 39/04 |
· | with liquid motor and pump combined in one unit

|  | F16H 39/06 |
· · | pump and motor being of the same type

|  | F16H 39/08 |
· · · | each with one main shaft and provided with pistons reciprocating in cylinders

|  | F16H 39/10 |
· · · · | with cylinders arranged around, and parallel or approximately parallel to, the main axis of the gearing

|  | F16H 39/12 |
· · · · · | with stationary cylinders

|  | F16H 39/14 |
· · · · · | with cylinders carried in rotary cylinder blocks or cylinder-bearing members

|  | F16H 39/16 |
· · · · | with cylinders arranged perpendicular to the main axis of the gearing

|  | F16H 39/18 |
· · · · · | the connections of the pistons being at the outer ends of the cylinders

|  | F16H 39/20 |
· · · · · | the connections of the pistons being at the inner ends of the cylinders

|  | F16H 39/22 |
· · · | with liquid chambers shaped as bodies of revolution concentric with the main axis of the gearing

|  | F16H 39/24 |
· · · · | with rotary displacement members, e.g. provided with axially or radially movable vanes passing movable sealing members

|  | F16H 39/26 |
· · · | with liquid chambers not shaped as bodies of revolution or shaped as bodies of revolution eccentric to the main axis of the gearing

|  | F16H 39/28 |
· · · · | with liquid chambers formed in rotary members

|  | F16H 39/30 |
· · · · | with liquid chambers formed in stationary members

|  | F16H 39/32 |
· · · · · | with sliding vanes carried by the rotor

|  | F16H 39/34 |
· · · | in which a rotor on one shaft co-operates with a rotor on another shaft

|  | F16H 39/36 |
· · · · | toothed-gear type

|  | F16H 39/38 |
· · · · | Displacement screw-pump type

|  | F16H 39/40 |
· · · | Hydraulic differential gearings, e.g. having a rotary input housing with interconnected liquid chambers for both outputs

|  | F16H 39/42 |
· · | pump and motor being of different types

|  | F16H 41/00 |
Rotary fluid gearing of the hydrokinetic type (control of exclusively fluid gearing Fulltext... Hierarchy... Expanded...F16H 61/38) [5]

|  | F16H 41/02 |
· | with pump and turbine connected by conduits or ducts

|  | F16H 41/04 |
· | Combined pump-turbine units

|  | F16H 41/22 |
· · | Gearing systems consisting of a plurality of hydrokinetic units operating alternatively, e.g. made effective or ineffective by filling or emptying or by mechanical clutches

|  | F16H 41/24 |
· | Details

|  | F16H 41/26 |
· · | Shape of runner blades or channels with respect to function

|  | F16H 41/28 |
· · | with respect to manufacture, e.g. blade attachment

|  | F16H 41/30 |
· · | relating to venting, lubrication, cooling, circulation of the cooling medium

|  | F16H 41/32 |
· | Selection of working fluids (chemical aspects, see the relevant classes)

|  | F16H 43/00 |
Other fluid gearing, e.g. with oscillating input or output [2]

|  | F16H 43/02 |
· | Fluid gearing actuated by pressure waves [2]

|  | F16H 45/00 |
Combinations of fluid gearings for conveying rotary motion with couplings or clutches (Fulltext... Hierarchy... Expanded...F16H 41/22 takes precedence; conjoint control of clutch and gearing Fulltext... Hierarchy... Expanded...B60K 41/22) [2]

|  | F16H 45/00 |
Note(s) Clutches for varying working conditions in fluid torque-converters are regarded as a part of the latter.

|  | F16H 45/02 |
· | with mechanical clutches for bridging a fluid gearing of the hydrokinetic type (control of torque converter lock-up clutches Fulltext... Hierarchy... Expanded...F16H 61/14)

|  | F16H 47/00 |
Combinations of mechanical gearing with fluid clutches or fluid gearing (conjoint control of clutch and gearing Fulltext... Hierarchy... Expanded...B60K 41/22) [2]

|  | F16H 47/02 |
· | the fluid gearing being of the volumetric type

|  | F16H 47/04 |
· · | the mechanical gearing being of the type with members having orbital motion

|  | F16H 47/06 |
· | the fluid gearing being of the hydrokinetic type

|  | F16H 47/07 |
· · | using two or more power-transmitting fluid circuits (Fulltext... Hierarchy... Expanded...F16H 47/10 takes precedence) [2]

|  | F16H 47/08 |
· · | the mechanical gearing being of the type with members having orbital motion

|  | F16H 47/10 |
· · · | using two or more power-transmitting fluid circuits [2]

|  | F16H 47/12 |
· · · | the members with orbital motion having vanes interacting with the fluid [2]

|  | F16H 48/00 |
Differential gearings [6]

|  | F16H 48/00 |
Note(s) In this group, documents relating to transfer gears are classified both in group Fulltext... Hierarchy... Expanded...F16H 48/02 or Fulltext... Hierarchy... Expanded...F16H 48/04 and in groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F16H 48/06-F16H 48/30. [6]

|  | F16H 48/02 |
· | Transfer gears for influencing drive between outputs [6]

|  | F16H 48/04 |
· · | having unequal torque transfer between two outputs [6]

|  | F16H 48/06 - F16H 48/30 |
Note(s) In groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F16H 48/06-F16H 48/30, for classification purposes only and in the absence of an indication to the contrary, classification is made in the last appropriate place. [6] In groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F16H 48/06-F16H 48/30, it is desirable to add the indexing codes relating to constructional features of differential gearings. The indexing codes, which are chosen from those groups, have the same numbers as the classification symbols, but a colon is used instead of the oblique stroke, and should be unlinked. [6] Attention is drawn to Chapter IV of the Guide which sets forth the rules concerning the application and presentation of the different types of indexing code. [6]

|  | F16H 48/06 |
· | with gears having orbital motion [6]

|  | F16H 48/08 |
· · | with orbital conical gears [6]

|  | F16H 48/10 |
· · | with orbital spur gears [6]

|  | F16H 48/12 |
· | without gears having orbital motion [6]

|  | F16H 48/14 |
· · | with cams [6]

|  | F16H 48/16 |
· · | with freewheels [6]

|  | F16H 48/18 |
· · | with fluid gearing [6]

|  | F16H 48/20 |
· | Arrangements for suppressing or influencing the differential action, e.g. locking devices [6]

|  | F16H 48/22 |
· · | using friction clutches or brakes [6]

|  | F16H 48/24 |
· · | using positive clutches or brakes [6]

|  | F16H 48/26 |
· · | using fluid action, e.g. viscous clutches [6]

|  | F16H 48/28 |
· · | using self-locking gears [6]

|  | F16H 48/30 |
· · | using externally-actuatable locking devices [6]

|  | F16H 49/00 |
Other gearing

|  | F16H 51/00 - F16H 57/00 |
Details of gearing or mechanisms (of screw-and-nut gearing Fulltext... Hierarchy... Expanded...F16H 25/00; of fluid gearing Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F16H 39/00-F16H 43/00; shafts, Bowden mechanisms, cranks, eccentrics, bearings, pivotal connections, crossheads, connecting-rods Fulltext... Hierarchy... Expanded...F16C; chains, belts Fulltext... Hierarchy... Expanded...F16G; piston-rods Fulltext... Hierarchy... Expanded...F16J 7/00)

|  | F16H 51/00 |
Levers (manipulating levers Fulltext... Hierarchy... Expanded...G05G)

|  | F16H 51/02 |
· | adjustable

|  | F16H 53/00 |
Cams; Non-rotary cams; Cam-followers, e.g. rollers (cams specially adapted for reciprocating-piston liquid engines Fulltext... Hierarchy... Expanded...F03C 1/30)

|  | F16H 53/02 |
· | Single-track cams for single-revolution cycles; Camshafts with such cams

|  | F16H 53/04 |
· · | Adjustable cams

|  | F16H 53/06 |
· | Cam-followers (Fulltext... Hierarchy... Expanded...F16H 53/08 takes precedence)

|  | F16H 53/08 |
· | Multi-track cams, e.g. for cycles consisting of several revolutions; Cam-followers specially adapted for such cams

|  | F16H 55/00 |
Elements with teeth or friction surfaces for conveying motion; Worms; Pulleys; Sheaves (pulley-blocks for lifting or hauling appliances Fulltext... Hierarchy... Expanded...B66D 3/04) [4]

|  | F16H 55/02 |
· | Toothed members; Worms

|  | F16H 55/06 |
· · | Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties [3]

|  | F16H 55/08 |
· · | Profiling [3]

|  | F16H 55/10 |
· · | Constructively simple tooth shapes, e.g. shaped as pins, as balls [3]

|  | F16H 55/12 |
· · | with body or rim assembled out of detachable parts [3]

|  | F16H 55/14 |
· · | Construction providing resilience or vibration-damping (Fulltext... Hierarchy... Expanded...F16H 55/06 takes precedence; resilient coupling of wheel or wheel-rim with shaft Fulltext... Hierarchy... Expanded...F16D 3/50, Fulltext... Hierarchy... Expanded...F16D 3/80) [3]

|  | F16H 55/16 |
· · · | relating to teeth only [3]

|  | F16H 55/17 |
· · | Toothed wheels (worm wheels Fulltext... Hierarchy... Expanded...F16H 55/22; chain wheels Fulltext... Hierarchy... Expanded...F16H 55/30) [3]

|  | F16H 55/18 |
· · · | Special devices for taking-up backlash

|  | F16H 55/20 |
· · · · | for bevel gears

|  | F16H 55/22 |
· · | for transmissions with crossing shafts, especially worms, worm-gears (bevel gears, crown wheels, helical gears Fulltext... Hierarchy... Expanded...F16H 55/17)

|  | F16H 55/24 |
· · · | Special devices for taking up backlash

|  | F16H 55/26 |
· · | Racks

|  | F16H 55/28 |
· · · | Special devices for taking up backlash

|  | F16H 55/30 |
· · | Chain wheels (specially adapted for cycles Fulltext... Hierarchy... Expanded...B62M)

|  | F16H 55/32 |
· | Friction members (friction surfaces Fulltext... Hierarchy... Expanded...F16D 69/00)

|  | F16H 55/34 |
· · | Non-adjustable friction discs

|  | F16H 55/36 |
· · | Pulleys (with features essential for adjustment Fulltext... Hierarchy... Expanded...F16H 55/52)

|  | F16H 55/38 |
· · · | Means or measures for increasing adhesion (in general Fulltext... Hierarchy... Expanded...F16D 69/00)

|  | F16H 55/40 |
· · · | with spokes (Fulltext... Hierarchy... Expanded...F16H 55/48 takes precedence)

|  | F16H 55/42 |
· · · | Laminated pulleys

|  | F16H 55/44 |
· · · | Sheet-metal pulleys

|  | F16H 55/46 |
· · · | Split pulleys

|  | F16H 55/48 |
· · · | manufactured exclusively or in part of wood or other non-metallic material (Fulltext... Hierarchy... Expanded...F16H 55/38, Fulltext... Hierarchy... Expanded...F16H 55/42, Fulltext... Hierarchy... Expanded...F16H 55/46 take precedence)

|  | F16H 55/49 |
· · · | Features essential to V-belt pulleys [2]

|  | F16H 55/50 |
· · · | Features essential to rope pulleys

|  | F16H 55/52 |
· · | Pulleys or friction discs of adjustable construction

|  | F16H 55/54 |
· · · | of which the bearing parts are radially adjustable

|  | F16H 55/56 |
· · · | of which the bearing parts are relatively axially adjustable

|  | F16H 57/00 |
General details of gearing

|  | F16H 57/02 |
· | Gear-boxes; Mounting gearing therein

|  | F16H 57/04 |
· | Features relating to lubrication or cooling

|  | F16H 57/05 |
· · | of chains (for conveyers Fulltext... Hierarchy... Expanded...B65G 45/08)

|  | F16H 57/08 |
· | of gearings with members having orbital motion

|  | F16H 57/10 |
· · | Braking arrangements

|  | F16H 57/12 |
· | Arrangements for adjusting or for taking-up backlash not provided for elsewhere [2]

|  | F16H 59/00 - F16H 63/00 |
Control of gearing conveying rotary motion (orbital toothed gearings with a secondary drive in order to vary the speed continuously Fulltext... Hierarchy... Expanded...F16H 3/72; varying the speed ratio of driving or feeding mechanisms of machine tools Fulltext... Hierarchy... Expanded...B23Q 5/12, Fulltext... Hierarchy... Expanded...B23Q 5/46; conjoint control of drive units for vehicles Fulltext... Hierarchy... Expanded...B60K 41/00; cycle transmissions Fulltext... Hierarchy... Expanded...B62M; marine propulsion Fulltext... Hierarchy... Expanded...B63H) [5]

|  | F16H 59/00 - F16H 63/00 |
Note(s) Attention is drawn to the Notes following group Fulltext... Hierarchy... Expanded...B60K 41/00. [5] In groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F16H 59/00-F16H 63/00, clutches positioned within a gearbox are considered as comprising part of the gearings. [5] In groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F16H 59/00-F16H 63/00, the following terms or expressions are used with the meaning indicated: "final output element" means the final element which is moved to establish a gear ratio, i.e. which achieves the linking between two power transmission means, e.g. reverse idler gear, gear cluster, coupling sleeve, apply piston of a hydraulic clutch; "mechanism" means a kinematic chain consisting either of a single element or alternatively of a series of elements, the position of each point on the kinematic chain being derivable from the position of any other point on the chain, and therefore, for a given position of a point on one of the elements forming the kinematic chain there is only one position for each of the other points on the element or series of elements forming the kinematic chain; "final output mechanism" means the mechanism which includes the final output element; "actuating mechanism" means the mechanism, the movement of which causes the movement of another mechanism by being in mutual contact; "final actuating mechanism" means the mechanism actuating the final output mechanism. [5] Combinations of features individually covered by group Fulltext... Hierarchy... Expanded...F16H 61/00 and one or both of groups Fulltext... Hierarchy... Expanded...F16H 59/00 and Fulltext... Hierarchy... Expanded...F16H 63/00 are classified in group Fulltext... Hierarchy... Expanded...F16H 61/00. [5] Combinations of features individually covered by groups Fulltext... Hierarchy... Expanded...F16H 59/00 and Fulltext... Hierarchy... Expanded...F16H 63/00 are classified in group Fulltext... Hierarchy... Expanded...F16H 63/00. [5] In groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F16H 59/00-F16H 63/00, it is desirable to add the indexing codes relating to control inputs or outputs. The indexing codes, which are chosen from groups Fulltext... Hierarchy... Expanded...F16H 59/00 or Fulltext... Hierarchy... Expanded...F16H 63/00, have the same numbers as the classification symbols, but a colon is used instead of the oblique stroke, and should be unlinked. [5] Attention is drawn to Chapter IV of the Guide which sets forth the rules concerning the application and presentation of the different types of indexing code. [6]

|  | F16H 59/00 |
Control inputs to change-speed- or reversing-gearings for conveying rotary motion [5]

|  | F16H 59/02 |
· | Selector apparatus [5]

|  | F16H 59/04 |
· · | Ratio selector apparatus [5]

|  | F16H 59/06 |
· · · | the ratio being infinitely variable [5]

|  | F16H 59/08 |
· · | Range selector apparatus [5]

|  | F16H 59/10 |
· · · | comprising levers [5]

|  | F16H 59/12 |
· · · | comprising push button devices [5]

|  | F16H 59/14 |
· | Inputs being a function of torque or torque demand [5]

|  | F16H 59/16 |
· · | Dynamometric measurement of torque [5]

|  | F16H 59/18 |
· · | dependent on the position of the accelerator pedal [5]

|  | F16H 59/20 |
· · · | Kickdown [5]

|  | F16H 59/22 |
· · · | Idle position [5]

|  | F16H 59/24 |
· · | dependent on the throttle opening [5]

|  | F16H 59/26 |
· · | dependent on pressure [5]

|  | F16H 59/28 |
· · · | Gasifier pressure in gas turbines [5]

|  | F16H 59/30 |
· · · | Intake manifold vacuum [5]

|  | F16H 59/32 |
· · · | Supercharger pressure in internal combustion engines [5]

|  | F16H 59/34 |
· · | dependent on fuel feed [5]

|  | F16H 59/36 |
· | Inputs being a function of speed [5]

|  | F16H 59/38 |
· · | of gearing elements [5]

|  | F16H 59/40 |
· · · | Output shaft speed [5]

|  | F16H 59/42 |
· · · | Input shaft speed [5]

|  | F16H 59/44 |
· · | dependent on machine speed (Fulltext... Hierarchy... Expanded...F16H 59/46 takes precedence) [5]

|  | F16H 59/46 |
· · | dependent on a comparison between speeds [5]

|  | F16H 59/48 |
· | Inputs being a function of acceleration [5]

|  | F16H 59/50 |
· | Inputs being a function of the status of the machine, e.g. position of doors or safety belts [5]

|  | F16H 59/52 |
· · | dependent on the weight of the machine, e.g. change in weight resulting from passengers boarding a bus [5]

|  | F16H 59/54 |
· · | dependent on signals from the brakes, e.g. parking brakes [5]

|  | F16H 59/56 |
· · | dependent on signals from the main clutch [5]

|  | F16H 59/58 |
· · | dependent on signals from the steering [5]

|  | F16H 59/60 |
· | Inputs being a function of ambient conditions [5]

|  | F16H 59/62 |
· · | Atmospheric pressure [5]

|  | F16H 59/64 |
· · | Atmospheric temperature [5]

|  | F16H 59/66 |
· · | Road conditions, e.g. slope, slippery [5]

|  | F16H 59/68 |
· | Inputs being a function of gearing status [5]

|  | F16H 59/70 |
· · | dependent on the ratio established [5]

|  | F16H 59/72 |
· · | dependent on oil characteristics, e.g. temperature, viscosity [5]

|  | F16H 59/74 |
· | Inputs being a function of engine parameters (Fulltext... Hierarchy... Expanded...F16H 59/14 takes precedence) [5]

|  | F16H 59/76 |
· · | Number of cylinders operating [5]

|  | F16H 59/78 |
· · | Temperature [5]

|  | F16H 61/00 |
Control functions within change-speed- or reversing-gearings for conveying rotary motion [5]

|  | F16H 61/02 |
· | characterised by the signals used [5]

|  | F16H 61/04 |
· | Smoothing ratio shift [5]

|  | F16H 61/06 |
· · | by controlling rate of change of fluid pressure [5]

|  | F16H 61/08 |
· · | Timing control [5]

|  | F16H 61/10 |
· | Regulating shift hysteresis [5]

|  | F16H 61/12 |
· | Detecting malfunction or potential malfunction, e.g. fail safe [5]

|  | F16H 61/14 |
· | Control of torque converter lock-up clutches [5]

|  | F16H 61/16 |
· | Inhibiting shift during unfavourable conditions (Fulltext... Hierarchy... Expanded...F16H 61/18 takes precedence) [5]

|  | F16H 61/18 |
· | Preventing unintentional or unsafe shift (constructional features of the final output mechanisms Fulltext... Hierarchy... Expanded...F16H 63/30) [5]

|  | F16H 61/20 |
· | Preventing gear creeping [5]

|  | F16H 61/22 |
· | Locking (Fulltext... Hierarchy... Expanded...F16H 63/34 takes precedence) [5]

|  | F16H 61/24 |
· | Providing feel, e.g. to enable selection [5]

|  | F16H 61/26 |
· | Generation or transmission of movements for final actuating mechanisms [5]

|  | F16H 61/26 |
Note(s) The generation or transmission of movements comprising only the selector apparatus, is classified in group Fulltext... Hierarchy... Expanded...F16H 59/00. [5] The generation or transmission of movements, when part of the final output mechanisms, is classified in group Fulltext... Hierarchy... Expanded...F16H 63/00. [5]

|  | F16H 61/28 |
· · | with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted [5]

|  | F16H 61/30 |
· · · | Hydraulic motors therefor [5]

|  | F16H 61/32 |
· · · | Electric motors therefor [5]

|  | F16H 61/34 |
· · | comprising two mechanisms, one for the preselection movement, and one for the shifting movement (Fulltext... Hierarchy... Expanded...F16H 61/36 takes precedence) [5]

|  | F16H 61/36 |
· · | with at least one movement being transmitted by a cable [5]

|  | F16H 61/38 |
· | Control of exclusively fluid gearing [5]

|  | F16H 61/40 |
· · | hydrostatic (involving modification of the gearing Fulltext... Hierarchy... Expanded...F16H 39/02, Fulltext... Hierarchy... Expanded...F16H 39/04) [5]

|  | F16H 61/42 |
· · · | involving adjustment of a pump or motor with adjustable output or capacity [5]

|  | F16H 61/44 |
· · · | by varying the number of pump or motor units in operation [5]

|  | F16H 61/46 |
· · · | Automatic regulation in accordance with output requirements (servomotors Fulltext... Hierarchy... Expanded...G05B) [5]

|  | F16H 61/48 |
· · | hydrodynamic [5]

|  | F16H 61/50 |
· · · | controlled by changing the flow, force, or reaction of the liquid in the working circuit, while maintaining a completely filled working circuit [5]

|  | F16H 61/52 |
· · · · | by altering the position of blades [5]

|  | F16H 61/54 |
· · · · · | by means of axially-shiftable blade runners [5]

|  | F16H 61/56 |
· · · · · | to change the blade angle [5]

|  | F16H 61/58 |
· · · · | by change of the mechanical connection of, or between, the runners [5]

|  | F16H 61/60 |
· · · · · | exclusively by the use of freewheel clutches [5]

|  | F16H 61/62 |
· · · · · | involving use of a speed-changing gearing or of a clutch in the connection between runners (Fulltext... Hierarchy... Expanded...F16H 45/02, Fulltext... Hierarchy... Expanded...F16H 61/60 take precedence) [5]

|  | F16H 61/64 |
· · · | controlled by changing the amount of liquid in the working circuit [5]

|  | F16H 63/00 |
Control outputs to change-speed- or reversing-gearings for conveying rotary motion [5]

|  | F16H 63/02 |
· | Final output mechanisms therefor; Actuating means for the final output mechanisms [5]

|  | F16H 63/04 |
· · | a single final output mechanism being moved by a single final actuating mechanism [5]

|  | F16H 63/06 |
· · · | the final output mechnism having an indefinite number of positions [5]

|  | F16H 63/08 |
· · | Multiple final output mechanisms being moved by a single common final actuating mechanism [5]

|  | F16H 63/10 |
· · · | the final actuating mechanism having a series of independent ways of movement, each way of movement being associated with only one final output mechanism [5]

|  | F16H 63/12 |
· · · · | two or more ways of movement occuring simultaneously [5]

|  | F16H 63/14 |
· · · | the final output mechanisms being successively actuated by repeated movement of the final actuating mechanism [5]

|  | F16H 63/16 |
· · · | the final output mechanisms being successively actuated by progressive movement of the final actuating mechanism [5]

|  | F16H 63/18 |
· · · · | the final actuating mechanism comprising cams [5]

|  | F16H 63/20 |
· · · | with preselection and subsequent movement of each final output mechanism by movement of the final actuating mechanism in two different ways, e.g. guided by a shift gate [5]

|  | F16H 63/22 |
· · · · | the final output mechanisms being simultaneously moved by the final actuating mechanism [5]

|  | F16H 63/24 |
· · | each of the final output mechanisms being moved by only one of the various final actuating mechanisms [5]

|  | F16H 63/26 |
· · · | some of the movements of the final output mechanisms being caused by another final output mechanism [5]

|  | F16H 63/28 |
· · | two or more final actuating mechanisms moving the same final output mechanism [5]

|  | F16H 63/30 |
· · | Constructional features of the final output mechanisms [5]

|  | F16H 63/32 |
· · · | Gear shifter yokes [5]

|  | F16H 63/34 |
· · · | Locking or disabling mechanisms [5]

|  | F16H 63/36 |
· · · · | Interlocking devices [5]

|  | F16H 63/38 |
· · · | Detents [5]

|  | F16H 63/40 |
· | comprising signals other than signals for actuating the final output mechanisms [5]

|  | F16H 63/42 |
· · | Ratio indicator devices [5]

|  | F16H 63/44 |
· · | Signals to the control unit of auxiliary gearing [5]

|  | F16H 63/46 |
· · | Signals to a clutch outside the gearbox [5]

|  | F16H 63/48 |
· · | Signals to a parking brake [5]