IPC 7 English version F16H 23/00-F16H 39/42

IPC ⁷ English version

F16H 9/00 - F16H 21/54

F16H02300-F16H03942

F16H 41/00 - F16H 59/78

SECTION F – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F 16

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

F 16 H

GEARING

23/

Wobble-plate gearings; Oblique-crank gearings

23/

with adjustment of throw by changing the position of the wobble-member (F16H 29/04, F16H 33/10 take precedence)

23/

with non-rotary wobble-members

23/

with sliding members hinged to reciprocating members

23/

connected to reciprocating members by connecting-rods

23/

with rotary wobble-plates with plane surfaces

25/

Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms

25/

the movements of two or more independently-moving members being combined into a single movement

25/

for conveying rotary motion

25/

with intermediate members guided along tracks on both rotary members

25/

for interconverting rotary motion and reciprocating motion (F16H 23/00 takes precedence)

25/

with adjustable throw (adjustable cams F16H 53/04)

25/

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

25/

with reciprocation perpendicular to the axis of rotation (F16H 21/36 takes precedence)

25/

for interconverting rotary motion and oscillating motion

25/

for conveying or interconverting oscillating or reciprocating motions

25/

Screw mechanisms (with automatic reversal F16H 25/12)

25/

with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members

25/

Elements essential to such mechanisms, e.g. screws, nuts (F16H 25/22 takes precedence)

Gearings with intermittently-driving members

27/

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

27/

with at least one reciprocating or oscillating transmission member

27/

for converting continuous rotation into a step-by-step rotary movement

27/

Mechanisms with driving pins in driven slots, e.g. Geneva drives

27/

with driving toothed gears with interrupted toothing

27/

obtained by means of disengageable transmission members, combined or not combined with mechanisms according to group F16H 27/06 or F16H 27/08

29/

Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action (freewheels F16D 41/00)

29/

between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts (F16H 29/20, F16H 29/22 take precedence)

29/

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

29/

with concentric shafts, an annular intermediate member moving around and being supported on an adjustable crank or eccentric

29/

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

29/

in which the transmission ratio is changed by directly acting on the intermittently driving members

29/

between rotary driving and driven members (F16H 29/20, F16H 29/22 take precedence)

29/

in which the transmission ratio is changed by adjustment of an otherwise stationary guide member for the intermittently-driving members

29/

in which the transmission ratio is changed by adjustment of the distance between the axes of the rotary members

29/

in which the intermittently-driving members slide along approximately radial guides while rotating with one of the rotary members

29/

the intermittently-acting members being shaped as worms, screws, or racks

29/

with automatic speed change

31/

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

33/

Gearings based on repeated accumulation and delivery of energy

33/

Rotary transmissions with mechanical accumulators, e.g. weights, springs, intermittently-connected flywheels

33/

Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought

33/

based essentially on spring action (ratchet slip couplings F16D 7/04)

33/

based essentially on inertia

33/

with gyroscopic action, e.g. comprising wobble-plates, oblique cranks

33/

with a driving member connected differentially with both a driven member and an oscillatory member with large resistance to movement, e.g. Constantinesco gearing

33/

having orbital members influenced by regulating masses

33/

which have their own free motion, or consist of fluid

33/

of which the motion is constrained

33/

for interconversion, based essentially on inertia, of rotary motion and reciprocating or oscillating motion

35/

Gearings or mechanisms with other special functional features

35/

for conveying rotary motion with cyclically-varying velocity ratio (speed-changing mechanisms operating cyclically, see the appropriate groups)

35/

Gearings designed to allow relative movement between supports thereof without ill effects (F16H 1/26, F16H 1/48 take precedence)

35/

for adjustment of members on moving parts from a stationary place

35/

Arrangements or devices for absorbing overload or preventing damage by overload (couplings for transmitting rotation F16D)

35/

Transmitting mechanisms with delayed effect (vibration- or shock-dampers in general F16F)

35/

Mechanisms with only two stable positions, e.g. acting at definite angular positions

35/

Mechanisms for movements or movement relations conforming to mathematical formulae (devices in which computing operations are performed mechanically G06G 3/00)

35/

Turning devices for rotatable members, e.g. shafts (starting devices for internal-combustion engines F02N)

37/

Combinations of mechanical gearings, not hereinbefore provided for (applications of underdrives or overdrives in motor vehicles, combinations with differential gearings in motor vehicles B60K)

37/

comprising essentially only toothed or friction gearings

37/

Combinations of toothed gearings only (F16H 37/06 takes precedence)

37/

with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts

37/

with differential gearing

37/

at both ends of intermediate shafts

37/

Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these three types (F16H 21/14, F16H 21/28, 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)

37/

the movements of two or more independently-moving members being combined into a single movement

37/

with a driving or driven member which both rotates or oscillates on its axis and reciprocates

Fluid gearing (fluid actuators F15B; couplings or clutches with a fluid or semifluid as power-transmitting means F16D 31/00 to F16D 39/00; fluid-resistance brakes F16D 57/00) [3]

39/

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 F16H 61/38; application to lifting or pushing equipment B66F) [5]

39/

Pneumatic gearing; Gearing working with subatmospheric pressure (pneumatic hammers B25D 9/00) [2]

39/

with liquid motors at a distance from liquid pumps

39/

with liquid motor and pump combined in one unit

39/

pump and motor being of the same type

39/

each with one main shaft and provided with pistons reciprocating in cylinders

39/

with cylinders arranged around, and parallel or approximately parallel to, the main axis of the gearing

39/

with stationary cylinders

39/

with cylinders carried in rotary cylinder blocks or cylinder-bearing members

39/

with cylinders arranged perpendicular to the main axis of the gearing

39/

the connections of the pistons being at the outer ends of the cylinders

39/

the connections of the pistons being at the inner ends of the cylinders

39/

with liquid chambers shaped as bodies of revolution concentric with the main axis of the gearing

39/

with rotary displacement members, e.g. provided with axially or radially movable vanes passing movable sealing members

39/

with liquid chambers not shaped as bodies of revolution or shaped as bodies of revolution eccentric to the main axis of the gearing

39/

with liquid chambers formed in rotary members

39/

with liquid chambers formed in stationary members

39/

with sliding vanes carried by the rotor

39/

in which a rotor on one shaft co-operates with a rotor on another shaft

39/

toothed-gear type

39/

Displacement screw-pump type

39/

Hydraulic differential gearings, e.g. having a rotary input housing with interconnected liquid chambers for both outputs

39/

pump and motor being of different types

F16H 9/00 - F16H 21/54

F16H 41/00 - F16H 59/78