|  | 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.

WEAPONS; BLASTING

|  | F41 |
WEAPONS

|  | F41 |
Note(s) This class covers also means for practice and training which may have aspects of simulation, e.g. in apparatus for so-called "military games", although simulators are generally covered by class Fulltext... Hierarchy... Expanded...G09. [4] In this class, the following terms or expressions are used with the meanings indicated: "smallarm" means a firearm which is generally held with one or both hands for firing, but this term also includes a light machine-gun which may be supported on a tripod or the like during firing; [5] "gun" means any weapon having a barrel and a trigger or firing mechanism for projecting a missile; it may be a piece of ordnance or a smallarm. It may use combustible or explosive propellant charges, air pressure, electromagnetism or other propulsive forces; [5] "revolver-type gun" means a gun having a revolving drum magazine, the chambers of which are used successively as firing chamber; [5] "revolver" means a revolver-type pistol; [5] "semi-automatic firearm" means a firearm from which one shot is fired after actuation of the trigger and which then returns to a condition for firing a subsequent shot upon renewed actuation of the trigger; "automatic firearm" means a firearm which will continue firing so long as the initial firing pressure is maintained on the trigger; "sighting" means bringing into visual coincidence a direction defined by a so-called "sighting" device with the direction of a target; "aiming" means bringing a weapon to a direction differing from the sighting direction by corrections in order that the projectile may hit the target; "laying" means setting a weapon in the correct position for hitting a target. Attention is drawn to the definitions of "projectile", "missile" and "rocket" given in Note (2) following the title of class Fulltext... Hierarchy... Expanded...F42. [4]

|  | F41A |
FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE [5]

|  | F41A |
Note(s) This subclass covers those features or details which are considered to be of a kind generally applicable to, or to be concerned with intrinsic functions common to, both smallarms and ordnance. [5] Such features or details are classified in this subclass, even if they are stated to be applied only to smallarms or only to ordnance. [5] Attention is drawn to the definitions given in Note (2) following the title of class Fulltext... Hierarchy... Expanded...F41. [5]

|  | F41A |
Subclass index
KINDS OF PROPULSION | 1/00
BREECH MECHANISMS | 3/00
UNLOCKING MECHANISMS | 5/00
GUN RECHARGERS, EXTERNALLY POWERED GUNS | 7/00
FEEDING OR LOADING, MAGAZINES | 9/00
ASSEMBLY FEATURES, MODULAR CONCEPTS, ARTICULATED OR COLLAPSIBLE GUNS | 11/00
COOLING, HEATING, VENTILATING, BLOWING TROUGH | 13/00
EXTRACTORS, EJECTORS | 15/00
SAFETY ARRANGEMENTS | 17/00
FIRING OR TRIGGER MECHANISMS, COCKING | 19/00
BARRELS, GUN TUBES, MUZZLE ATTACHMENTS | 21/00
GUN MOUNTINGS, e.g. on vehicles | 23/00
Permitting recoil | 25/00
Permitting elevation or traversing | 27/00
CLEANING OR LUBRICATING | 29/00
TESTING | 31/00
ADAPTATIONS FOR TRAINING | 33/00
OTHER ACCESSORIES OR DETAILS | 35/00

|  | F41A 1/00 |
Missile propulsion characterised by the use of explosive or combustible propellant charges (projecting missiles without use of explosive or combustible propellant charge Fulltext... Hierarchy... Expanded...F41B; launching rockets or torpedoes Fulltext... Hierarchy... Expanded...F41F 3/00; missile self-propulsion Fulltext... Hierarchy... Expanded...F42B 15/00) [5]

|  | F41A 1/02 |
· | Hypervelocity missile propulsion using successive means for increasing the propulsive force, e.g. using successively initiated propellant charges arranged along the barrel length; Multistage missile propulsion [5]

|  | F41A 1/04 |
· | Missile propulsion using the combustion of a liquid or gaseous fuel, e.g. hypergolic fuel [5]

|  | F41A 1/06 |
· | Adjusting the range without varying elevation angle or propellant charge data, e.g. by venting a part of the propulsive charge gases, or by adjusting the capacity of the cartridge or combustion chamber [5]

|  | F41A 1/08 |
· | Recoilless guns, i.e. guns having propulsion means producing no recoil [5]

|  | F41A 1/10 |
· · | a counter projectile being used to balance recoil [5]

|  | F41A 3/00 |
Breech mechanism, e.g. locks [5]

|  | F41A 3/02 |
· | Block action, i.e. the main breech opening movement being transverse to the barrel axis [5]

|  | F41A 3/04 |
· · | with pivoting breech-block [5]

|  | F41A 3/06 |
· · · | about a horizontal axis transverse to the barrel axis at the rear of the block (Fulltext... Hierarchy... Expanded...F41A 3/08 takes precedence) [5]

|  | F41A 3/08 |
· · · | carrying a rotably mounted obturating plug of the screw-thread or the interrupted-thread type (Fulltext... Hierarchy... Expanded...F41A 3/30 takes precedence) [5]

|  | F41A 3/10 |
· · | with sliding breech-block, e.g. vertically [5]

|  | F41A 3/12 |
· | Bolt action, i.e. the main breech opening movement being parallel to the barrel axis [5]

|  | F41A 3/14 |
· · | Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively [5]

|  | F41A 3/16 |
· · · | the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks [5]

|  | F41A 3/18 |
· · · · | hand-operated [5]

|  | F41A 3/20 |
· · · · · | Straight-pull operated bolt locks, i.e. the operating hand effecting only a straight movement parallel to the barrel axis [5]

|  | F41A 3/22 |
· · · · · | the locking being effected by rotating the operating handle or lever transversely to the barrel axis [5]

|  | F41A 3/24 |
· · · · · · | the locking elements forming part of the operating handle or lever [5]

|  | F41A 3/26 |
· · · · | semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt [5]

|  | F41A 3/28 |
· · · · · | having fixed locking elements on the non-rotating bolt and rotating locking elements mounted on the barrel or breech housing, e.g. rotatable rings [5]

|  | F41A 3/30 |
· · · · | Interlocking means, e.g. locking lugs, screw threads [5]

|  | F41A 3/32 |
· · · | the bolt being rocked about a notional axis transverse to the barrel axis [5]

|  | F41A 3/34 |
· · · | the bolt additionally effecting a sliding movement transverse to the barrel axis [5]

|  | F41A 3/36 |
· · | Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrrel or breech housing [5]

|  | F41A 3/38 |
· · · | having rocking locking elements, e.g. pivoting levers or vanes [5]

|  | F41A 3/40 |
· · · · | mounted on the bolt (Fulltext... Hierarchy... Expanded...F41A 3/42 takes precedence) [5]

|  | F41A 3/42 |
· · · · | hand-operated [5]

|  | F41A 3/44 |
· · · | having sliding locking elements, e.g. balls, rollers [5]

|  | F41A 3/46 |
· · · · | mounted on the bolt (Fulltext... Hierarchy... Expanded...F41A 3/48 takes precedence) [5]

|  | F41A 3/48 |
· · · · | hand-operated [5]

|  | F41A 3/50 |
· · · | Toggle-joint locks, e.g. crank-operated [5]

|  | F41A 3/52 |
· · · · | hand-operated [5]

|  | F41A 3/54 |
· · | Bolt locks of the unlocked type, i.e. being inertia operated [5]

|  | F41A 3/56 |
· · · | the bolt being provided with an additional slidable mass [5]

|  | F41A 3/58 |
· | Breakdown breech mechanisms, e.g. for shotguns [5]

|  | F41A 3/60 |
· | Breech mechanisms for guns having two or more barrels (Fulltext... Hierarchy... Expanded...F41A 3/58 takes precedence; for revolving-cannon guns Fulltext... Hierarchy... Expanded...F41F 1/10) [5]

|  | F41A 3/62 |
· | using combustion gas pressure for adding to the mechanical locking action, or for delaying breech opening movement [5]

|  | F41A 3/64 |
· | Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings [5]

|  | F41A 3/66 |
· · | Breech housings or frames; Receivers [5]

|  | F41A 3/68 |
· · | Bolt stops, i.e. means for limiting bolt opening movement [5]

|  | F41A 3/70 |
· · | Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position [5]

|  | F41A 3/72 |
· · | Operating handles or levers; Mounting thereof in breech-blocks or bolts [5]

|  | F41A 3/74 |
· · | Obturating or packing devices for gas leak prevention in breech mechanisms [5]

|  | F41A 3/76 |
· · · | specially adapted for sealing the gap between the forward end of the cartridge chamber and the rearward end of the barrel, e.g. sealing devices for revolvers or revolver-type guns [5]

|  | F41A 3/78 |
· · | Bolt buffer or recuperator means [5]

|  | F41A 3/80 |
· · · | Adjustable spring buffers [5]

|  | F41A 3/82 |
· · · | Coil spring buffers (Fulltext... Hierarchy... Expanded...F41A 3/80 takes precedence) [5]

|  | F41A 3/84 |
· · · · | mounted within the gun stock [5]

|  | F41A 3/86 |
· · · · | mounted under the barrel [5]

|  | F41A 3/88 |
· · · · | mounted around the barrel [5]

|  | F41A 3/90 |
· · · | Fluid buffers [5]

|  | F41A 3/92 |
· · · · | adjustable [5]

|  | F41A 3/94 |
· · · · | in combination with spring buffers [5]

|  | F41A 5/00 |
Mechanisms or systems operated by propellant charge energy for automatically opening the lock [5]

|  | F41A 5/02 |
· | recoil-operated [5]

|  | F41A 5/04 |
· · | the barrel being tilted during recoil [5]

|  | F41A 5/06 |
· · | the barrel being rotated about its longitudinal axis during recoil [5]

|  | F41A 5/08 |
· · | having an accelerator lever acting on the breech-block or bolt during the opening movement [5]

|  | F41A 5/10 |
· · | having a movable inertia weight [5]

|  | F41A 5/12 |
· · · | mounted in a gun having a fixed barrel [5]

|  | F41A 5/14 |
· · | Barrel stops, i.e. devices for holding the recoiling barrel in a predetermined position, e.g. the recoil position [5]

|  | F41A 5/16 |
· · | having a barrel moving forwardly after the firing of a shot [5]

|  | F41A 5/18 |
· | gas-operated [5]

|  | F41A 5/20 |
· · | using a gas piston arranged concentrically around the barrel [5]

|  | F41A 5/22 |
· · | having two or more gas pistons [5]

|  | F41A 5/24 |
· · | by direct action of gas pressure on bolt or locking elements [5]

|  | F41A 5/26 |
· · | Arrangements or systems for bleeding the gas from the barrel (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F41A 5/20-F41A 5/24 take precedence) [5]

|  | F41A 5/28 |
· · · | Adjustable systems [5]

|  | F41A 5/30 |
· | Gas- or recoil-operation, e.g. selection of gas- or recoil-operated systems [5]

|  | F41A 5/32 |
· | Energy accumulator systems, i.e. systems for opening the breech-block by energy accumulated during barrel or gas piston recoil [5]

|  | F41A 5/34 |
· · | with spring accumulators [5]

|  | F41A 5/36 |
· · | with fluid accumulators [5]

|  | F41A 7/00 |
Auxiliary mechanisms for bringing the breech-block or bolt or the barrel to the starting position before automatic firing; Drives for externally-powered guns; Remote-controlled gun chargers [5]

|  | F41A 7/02 |
· | Machine-gun rechargers, e.g. manually operated (Fulltext... Hierarchy... Expanded...F41A 3/72 takes precedence) [5]

|  | F41A 7/04 |
· · | fluid operated [5]

|  | F41A 7/06 |
· · | electrically operated [5]

|  | F41A 7/08 |
· | Drives for externally-powered guns, i.e. drives for moving the breech-block or bolt by an external force during automatic firing [5]

|  | F41A 7/10 |
· · | using a rotating cylindrical drum having a camming groove (Fulltext... Hierarchy... Expanded...F41F 1/10 takes precedence) [5]

|  | F41A 9/00 |
Feeding or loading of ammunition (adaptations for feeding or loading missiles from magazines in air guns Fulltext... Hierarchy... Expanded...F41B 11/02); Magazines; Guiding means for the extracting of cartridges (cartridge extractors or ejectors Fulltext... Hierarchy... Expanded...F41A 15/00) [5]

|  | F41A 9/01 |
· | Feeding of unbelted ammunition [5]

|  | F41A 9/02 |
· · | using wheel conveyers, e.g. star-wheel-shaped conveyers [5]

|  | F41A 9/03 |
· · | using screw or rotary-spiral conveyers [5]

|  | F41A 9/04 |
· · | using endless-chain belts carrying a plurality of ammunition [5]

|  | F41A 9/05 |
· · · | in tandem sequence [5]

|  | F41A 9/06 |
· · | using cyclically moving conveyers, i.e. conveyers having ammunition pusher or carrier elements which are emptied or disengaged from the ammunition during the return stroke [5]

|  | F41A 9/07 |
· · · | Reciprocating conveyers, i.e. conveyers pushing a plurality of ammunition during the feeding stroke [5]

|  | F41A 9/09 |
· · · | Movable ammunition carriers or loading trays, e.g. for feeding from magazines [5]

|  | F41A 9/10 |
· · · · | pivoting or swinging [5]

|  | F41A 9/11 |
· · · · · | in a horizontal plane [5]

|  | F41A 9/12 |
· · · · · · | mounted within a smallarm [5]

|  | F41A 9/13 |
· · · · · | in a vertical plane [5]

|  | F41A 9/14 |
· · · · · · | transverse to the barrel axis [5]

|  | F41A 9/15 |
· · · · · · · | mounted within a smallarm [5]

|  | F41A 9/16 |
· · · · · · | parallel to the barrel axis [5]

|  | F41A 9/17 |
· · · · · · · | mounted within a smallarm [5]

|  | F41A 9/18 |
· · · · · · · · | feeding from a magazine under the barrel [5]

|  | F41A 9/19 |
· · · · · · · · | feeding from a magazine mounted in the stock [5]

|  | F41A 9/20 |
· · · · | sliding, e.g. reciprocating [5]

|  | F41A 9/21 |
· · · · · | in a vertical direction (Fulltext... Hierarchy... Expanded...F41A 9/23 takes precedence) [5]

|  | F41A 9/22 |
· · · · · | in a horizontal direction (Fulltext... Hierarchy... Expanded...F41A 9/23 takes precedence) [5]

|  | F41A 9/23 |
· · · · · | mounted within a smallarm [5]

|  | F41A 9/24 |
· · | using a movable magazine or clip as feeding element [5]

|  | F41A 9/25 |
· · · | using a sliding clip [5]

|  | F41A 9/26 |
· · · | using a revolving drum magazine [5]

|  | F41A 9/27 |
· · · · | in revolver-type guns [5]

|  | F41A 9/28 |
· · · · · | of smallarm type (in revolvers Fulltext... Hierarchy... Expanded...F41C 3/14) [5]

|  | F41A 9/29 |
· | Feeding of belted ammunition [5]

|  | F41A 9/30 |
· · | Sprocket-type belt transporters [5]

|  | F41A 9/31 |
· · · | with cartridge stripping means [5]

|  | F41A 9/32 |
· · | Reciprocating-slide-type belt transporters [5]

|  | F41A 9/33 |
· · · | with cartridge stripping means [5]

|  | F41A 9/34 |
· · | from magazines (magazines for belted ammunition per se Fulltext... Hierarchy... Expanded...F41A 9/79) [5]

|  | F41A 9/35 |
· | Feeding multibarrel guns [5]

|  | F41A 9/35 |
Note(s) Feeding elements or concepts of general interest, not specially adapted for feeding multibarrel guns, are classified in groups Fulltext... Hierarchy... Expanded...F41A 9/01 or Fulltext... Hierarchy... Expanded...F41A 9/29. [5]

|  | F41A 9/36 |
· · | Feed mechanisms for revolving-cannon guns [5]

|  | F41A 9/37 |
· | Feeding two or more kinds of ammunition to the same gun; Feeding from two sides [5]

|  | F41A 9/37 |
Note(s) Feeding elements or concepts of general interest, not specially adapted for feeding two or more kinds of ammunition or from two sides, are classified in groups Fulltext... Hierarchy... Expanded...F41A 9/01 or Fulltext... Hierarchy... Expanded...F41A 9/29. [5]

|  | F41A 9/38 |
· | Loading arrangements, i.e. for bringing the ammunition into the firing position [5]

|  | F41A 9/39 |
· · | Ramming arrangements [5]

|  | F41A 9/40 |
· · · | the breech-block itself being the rammer [5]

|  | F41A 9/41 |
· · · · | pushing unbelted ammunition from a box magazine on the gun frame into the cartridge chamber [5]

|  | F41A 9/42 |
· · · | Rammers separate from breech-block [5]

|  | F41A 9/43 |
· · · · | Chain rammers [5]

|  | F41A 9/44 |
· · · · | Fluid-operated piston rammers [5]

|  | F41A 9/45 |
· · | the cartridge chamber or the barrel as a whole being tiltable between a loading and a firing position [5]

|  | F41A 9/46 |
· · | the cartridge chamber being formed by two complementary elements, movable one relative to the other for loading [5]

|  | F41A 9/47 |
· · | using forwardly-sliding barrels or barrel parts for loading [5]

|  | F41A 9/48 |
· · | by gravitational force [5]

|  | F41A 9/49 |
· | Internally-powered drives, i.e. operated by propellant charge energy, e.g. couplings, clutches, energy accumulators [5]

|  | F41A 9/50 |
· | External power or control systems [5]

|  | F41A 9/51 |
· · | Boosters, i.e. externally-powered motors [5]

|  | F41A 9/52 |
· | Arrangements for changing from automatic or magazine-loading to hand-loading [5]

|  | F41A 9/53 |
· | Charged-condition indicators, i.e. indicating the presence of a cartridge in the cartridge chamber [5]

|  | F41A 9/54 |
· | Cartridge guides, stops or positioners, e.g. for cartridge extraction [5]

|  | F41A 9/55 |
· · | Fixed guiding means, mounted on, or near, the cartridge chamber [5]

|  | F41A 9/56 |
· · | Movable guiding means [5]

|  | F41A 9/57 |
· · · | Flexible chutes, e.g. for guiding belted ammunition from the magazine to the gun [5]

|  | F41A 9/58 |
· · | Cartridge stops; Cartridge positioners [5]

|  | F41A 9/59 |
· | Ejectors for clips or magazines, e.g. when empty [5]

|  | F41A 9/60 |
· | Empty-cartridge-case or belt-link collectors or catchers (Fulltext... Hierarchy... Expanded...F41A 9/81 takes precedence) [5]

|  | F41A 9/61 |
· | Magazines [5]

|  | F41A 9/62 |
· · | having means for indicating the number of cartridges left in the magazine, e.g. last-round indicators (last-round safeties Fulltext... Hierarchy... Expanded...F41A 17/40) [5]

|  | F41A 9/63 |
· · | specially adapted for releasable connection with other magazines [5]

|  | F41A 9/64 |
· · | for unbelted ammunition [5]

|  | F41A 9/65 |
· · · | Box magazines having a cartridge follower [5]

|  | F41A 9/66 |
· · · · | Arrangements thereon for charging, i.e. reloading (apparatus or tools for reloading magazines Fulltext... Hierarchy... Expanded...F41A 9/83) [5]

|  | F41A 9/67 |
· · · · · | having means for depressing the cartridge follower, or for locking it in a depressed position [5]

|  | F41A 9/68 |
· · · · | Plural magazines, e.g. tandem magazines [5]

|  | F41A 9/69 |
· · · · | characterised by multiple-row or zigzag arrangement of cartridges [5]

|  | F41A 9/70 |
· · · · | Arrangements thereon for discharging, e.g. cartridge followers or discharge throats [5]

|  | F41A 9/71 |
· · · · | Arrangements thereon for varying capacity; Adapters or inserts for changing cartridge size or type [5]

|  | F41A 9/72 |
· · · | Tubular magazines, i.e. magazines containing the ammunition in lengthwise tandem sequence [5]

|  | F41A 9/73 |
· · · | Drum magazines [5]

|  | F41A 9/74 |
· · · · | with radially disposed cartridges [5]

|  | F41A 9/75 |
· · · · | having a spiral cartridge channel [5]

|  | F41A 9/76 |
· · · | Magazines having an endless-chain conveyer [5]

|  | F41A 9/77 |
· · · | Magazines having a screw conveyer [5]

|  | F41A 9/78 |
· · · | Magazines having a reciprocating conveyer [5]

|  | F41A 9/79 |
· · | for belted ammunition [5]

|  | F41A 9/80 |
· · · | having provision for quick-coupling of the belts of adjacent magazines [5]

|  | F41A 9/81 |
· · · | having provision for collecting belt links or empty cartridge cases [5]

|  | F41A 9/82 |
· | Reloading of magazines [5]

|  | F41A 9/83 |
· · | Apparatus or tools for reloading magazines with unbelted ammunition, e.g. cartridge clips [5]

|  | F41A 9/84 |
· · · | Clips [5]

|  | F41A 9/85 |
· · · · | for reloading revolver-type magazines [5]

|  | F41A 9/86 |
· · | Feeding belted ammunition into magazines [5]

|  | F41A 9/87 |
· | Ammunition handling dollies or transfer carts (Fulltext... Hierarchy... Expanded...F41A 9/86 takes precedence) [5]

|  | F41A 11/00 |
Assembly or disassembly features; Modular concepts; Articulated or collapsible guns (Fulltext... Hierarchy... Expanded...F41A 3/64, Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F41A 19/10-F41A 19/15, Fulltext... Hierarchy... Expanded...F41A 21/48, Fulltext... Hierarchy... Expanded...F41A 25/26 take precedence) [5]

|  | F41A 11/02 |
· | Modular concepts, e.g. weapon-family concepts [5]

|  | F41A 11/04 |
· | Articulated or collapsible guns, i.e. with hinged or telescopic parts for transport or storage (breakdown shotguns or rifles Fulltext... Hierarchy... Expanded...F41C 7/11; folding or telescopic stocks or stock parts Fulltext... Hierarchy... Expanded...F41C 23/04) [5]

|  | F41A 11/06 |
· · | Telescopic guns [5]

|  | F41A 13/00 |
Cooling or heating systems; Blowing-through of gun barrels; Ventilating systems [5]

|  | F41A 13/02 |
· | Heating systems [5]

|  | F41A 13/04 |
· | Injecting fluids into barrels or cartridge chambers (Fulltext... Hierarchy... Expanded...F41A 13/08 takes precedence) [5]

|  | F41A 13/06 |
· | Evacuating combustion gas from barrels (Fulltext... Hierarchy... Expanded...F41A 13/10 takes precedence) [5]

|  | F41A 13/08 |
· · | Bore evacuators, i.e. chambers disposed around barrels for storing part of the combustion gas and subsequently injecting it into the barrel to provide suction [5]

|  | F41A 13/10 |
· | Blowers or turbines for evacuating or cooling guns, e.g. driven by combustion gas pressure or recoil [5]

|  | F41A 13/12 |
· | Systems for cooling the outer surface of the barrel (Fulltext... Hierarchy... Expanded...F41A 13/10, Fulltext... Hierarchy... Expanded...F41A 21/24 take precedence) [5]

|  | F41A 15/00 |
Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun (Fulltext... Hierarchy... Expanded...F41A 9/54 takes precedence) [5]

|  | F41A 15/02 |
· | for revolver-type guns, e.g. revolvers [5]

|  | F41A 15/04 |
· | specially adapted for cartridge cases being deformed when fired, e.g. of plastics [5]

|  | F41A 15/06 |
· | for breakdown guns [5]

|  | F41A 15/08 |
· | for block-action guns [5]

|  | F41A 15/10 |
· · | of sliding-block type [5]

|  | F41A 15/12 |
· | for bolt-action guns [5]

|  | F41A 15/14 |
· · | the ejector being mounted on, or within, the bolt [5]

|  | F41A 15/16 |
· · | the ejector being mounted on the breech housing or frame [5]

|  | F41A 15/18 |
· | for guns with forwardly slidable barrels [5]

|  | F41A 15/20 |
· | specially adapted for caseless-ammunition duds [5]

|  | F41A 15/22 |
· | Tools for extracting cartridges [5]

|  | F41A 17/00 |
Safety arrangements, e.g. safeties [5]

|  | F41A 17/02 |
· | Key-operated safeties [5]

|  | F41A 17/04 |
· | Safeties of the combination-lock type (Fulltext... Hierarchy... Expanded...F41A 17/02 takes precedence) [5]

|  | F41A 17/06 |
· | Electric or electromechanical safeties (Fulltext... Hierarchy... Expanded...F41A 17/04, Fulltext... Hierarchy... Expanded...F41A 17/08 take precedence) [5]

|  | F41A 17/08 |
· | for inhibiting firing in a specified direction, e.g. at a friendly person or at a protected area (Fulltext... Hierarchy... Expanded...F41A 27/02 takes precedence) [5]

|  | F41A 17/10 |
· · | Firing mechanisms with elevation stop [5]

|  | F41A 17/12 |
· · | Firing mechanisms with anti-canting safety [5]

|  | F41A 17/14 |
· | Double-loading prevention [5]

|  | F41A 17/16 |
· | Cook-off prevention, i.e. prevention of spontaneous firing of a cartridge by chamber wall heat [5]

|  | F41A 17/18 |
· | Hang-fire prevention [5]

|  | F41A 17/20 |
· | Grip or stock safeties, i.e. safeties disengaged by clasping the grip or stock (thumb-operated sliding safeties Fulltext... Hierarchy... Expanded...F41A 17/52, Fulltext... Hierarchy... Expanded...F41A 17/62, Fulltext... Hierarchy... Expanded...F41A 17/70, Fulltext... Hierarchy... Expanded...F41A 17/80) [5]

|  | F41A 17/22 |
· · | acting on the trigger [5]

|  | F41A 17/24 |
· · | acting on the firing pin [5]

|  | F41A 17/26 |
· · | acting on the hammer [5]

|  | F41A 17/28 |
· · | acting on the sear [5]

|  | F41A 17/30 |
· | Multiple safeties, i.e. safeties acting on at least one element of the firing mechanism and at least one other element of the gun, e.g. the moving barrel [5]

|  | F41A 17/32 |
· · | the other element being the breech-block or bolt [5]

|  | F41A 17/34 |
· | Magazine safeties [5]

|  | F41A 17/36 |
· · | locking the gun in a safety condition when the magazine is empty or removed [5]

|  | F41A 17/38 |
· · | locking the magazine in the gun [5]

|  | F41A 17/40 |
· | Last-round safeties (Fulltext... Hierarchy... Expanded...F41A 17/34 takes precedence) [5]

|  | F41A 17/42 |
· | Safeties for locking the breech-block or bolt in a safety position (Fulltext... Hierarchy... Expanded...F41A 17/32, Fulltext... Hierarchy... Expanded...F41A 17/36, Fulltext... Hierarchy... Expanded...F41A 17/40 take precedence) [5]

|  | F41A 17/44 |
· | Safety plugs, e.g. for plugging-up cartridge chambers [5]

|  | F41A 17/46 |
· | Trigger safeties, i.e. means for preventing trigger movement (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F41A 17/02-F41A 17/40 take precedence) [5]

|  | F41A 17/48 |
· · | Automatically operated trigger safeties, i.e. operated by breech opening or closing movement [5]

|  | F41A 17/50 |
· · · | by breakdown action [5]

|  | F41A 17/52 |
· · | Thumb-operated sliding safeties mounted on the upside of the stock, e.g. for shotguns [5]

|  | F41A 17/54 |
· · | Protecting-caps for trigger guards; Trigger locking pieces mounted on, or within, the trigger guard [5]

|  | F41A 17/56 |
· | Sear safeties, i.e. means for rendering ineffective an intermediate lever transmitting trigger movement to firing pin, hammer, bolt or sear (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F41A 17/02-F41A 17/40 take precedence) [5]

|  | F41A 17/58 |
· · | automatically operated, i.e. operated by breech opening or closing movement [5]

|  | F41A 17/60 |
· · · | by breakdown action [5]

|  | F41A 17/62 |
· · | Thumb-operated sliding safeties mounted on the upside of the stock, e.g. for shotguns [5]

|  | F41A 17/64 |
· | Firing-pin safeties, i.e. means for preventing movement of slidably-mounted strikers (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F41A 17/02-F41A 17/40 take precedence) [5]

|  | F41A 17/66 |
· · | automatically operated, i.e. operated by breech opening or closing movement [5]

|  | F41A 17/68 |
· · · | by breakdown action [5]

|  | F41A 17/70 |
· · | Thumb-operated sliding safeties mounted on the upside of the stock, e.g. for shotguns [5]

|  | F41A 17/72 |
· · | trigger-operated, i.e. the movement of the trigger bringing a firing-pin safety into inoperative position during the firing [5]

|  | F41A 17/74 |
· | Hammer safeties, i.e. for preventing the hammer from hitting the cartridge or the firing pin (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F41A 17/02-F41A 17/40 take precedence) [5]

|  | F41A 17/76 |
· · | automatically operated, i.e. operated by breech opening or closing movement [5]

|  | F41A 17/78 |
· · · | by breakdown action [5]

|  | F41A 17/80 |
· · | Thumb-operated sliding safeties mounted on the upside of the stock, e.g. for shotguns [5]

|  | F41A 17/82 |
· · | trigger-operated, i.e. the movement of the trigger bringing a hammer safety into inoperative position during firing [5]

|  | F41A 19/00 |
Firing or trigger mechanisms; Cocking mechanisms [5]

|  | F41A 19/01 |
· | Counting means indicating the number of shots fired [5]

|  | F41A 19/02 |
· · | Burst limiters (Fulltext... Hierarchy... Expanded...F41A 19/67 takes precedence) [5]

|  | F41A 19/03 |
· | Shot-velocity control (Fulltext... Hierarchy... Expanded...F41A 3/78, Fulltext... Hierarchy... Expanded...F41A 5/28, Fulltext... Hierarchy... Expanded...F41A 19/05, Fulltext... Hierarchy... Expanded...F41A 19/66 take precedence) [5]

|  | F41A 19/04 |
· · | by regulating the time of release of the firing pin or hammer [5]

|  | F41A 19/05 |
· | Synchronising for firing through the propeller of an aircraft [5]

|  | F41A 19/06 |
· | Mechanical firing mechanisms (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F41A 19/01-F41A 19/05, Fulltext... Hierarchy... Expanded...F41A 19/59 take precedence) [5]

|  | F41A 19/07 |
· · | press-button actuated, e.g. with thumb rest [5]

|  | F41A 19/08 |
· · | remote actuated; lanyard actuated [5]

|  | F41A 19/09 |
· · | Auxiliary trigger devices (Fulltext... Hierarchy... Expanded...F41A 19/08 takes precedence) [5]

|  | F41A 19/10 |
· · | Triggers; Trigger mountings [5]

|  | F41A 19/11 |
· · | Trigger guards; Trigger-guard mountings (Fulltext... Hierarchy... Expanded...F41A 19/15 takes precedence) [5]

|  | F41A 19/12 |
· · | Sears; Sear mountings [5]

|  | F41A 19/13 |
· · | Percussion or firing pins, i.e. fixed or slidably- mounted striker elements; Mountings therefor [5]

|  | F41A 19/14 |
· · | Hammers, i.e. pivotably-mounted striker elements; Hammer mountings [5]

|  | F41A 19/15 |
· · | Modular firing mechanism units [5]

|  | F41A 19/16 |
· · | Adjustable firing mechanisms; Trigger mechanisms with adjustable trigger pull (Fulltext... Hierarchy... Expanded...F41A 19/17 takes precedence) [5]

|  | F41A 19/17 |
· · | Hair-trigger mechanisms [5]

|  | F41A 19/18 |
· · | for multibarrel guns (Fulltext... Hierarchy... Expanded...F41A 19/68 takes precedence) [5]

|  | F41A 19/19 |
· · · | with single-trigger firing possibility [5]

|  | F41A 19/20 |
· · · · | Double-trigger arrangements having the possibility of single-trigger actuation [5]

|  | F41A 19/21 |
· · · · | having only one trigger [5]

|  | F41A 19/22 |
· · · · · | and only one striker element [5]

|  | F41A 19/23 |
· · · · · · | rotatable about an axis parallel to the barrel axis for firing subsequent barrels [5]

|  | F41A 19/24 |
· · | Release-trigger mechanisms, i.e. the striker element being released during the return movement of the trigger subsequent to trigger pull [5]

|  | F41A 19/25 |
· · | having only slidably-mounted striker elements, i.e. percussion or firing pins [5]

|  | F41A 19/26 |
· · · | the percussion or firing pin and the breech-block or bolt forming one piece [5]

|  | F41A 19/27 |
· · · | the percussion or firing pin being movable relative to the breech-block [5]

|  | F41A 19/28 |
· · · · | propelled by a cam or lever when the breech-block or bolt arrives at a closing position [5]

|  | F41A 19/29 |
· · · · | propelled by a spring under tension [5]

|  | F41A 19/30 |
· · · · · | in bolt-action guns [5]

|  | F41A 19/31 |
· · · · · · | Sear arrangements therefor (Fulltext... Hierarchy... Expanded...F41A 19/33 takes precedence) [5]

|  | F41A 19/32 |
· · · · · · · | for catching the percussion or firing pin after each shot, i.e. in single-shot or semi-automatic firing mode [5]

|  | F41A 19/33 |
· · · · · · | Arrangements for the selection of automatic or semi-automatic fire [5]

|  | F41A 19/34 |
· · · · · · | Cocking mechanisms [5]

|  | F41A 19/35 |
· · · · · · · | Double-action mechanisms, i.e. the cocking being effected during the first part of the trigger pull movement [5]

|  | F41A 19/36 |
· · · · · | in block-action guns [5]

|  | F41A 19/37 |
· · · · · · | Cocking mechanisms [5]

|  | F41A 19/38 |
· · · · · · · | Double-action mechanisms, i.e. the cocking being effected during the first part of the trigger pull movement [5]

|  | F41A 19/39 |
· · · · · | Cocking mechanisms for other types of guns, e.g. fixed breech-block types, forwardly-slidable barrel types [5]

|  | F41A 19/40 |
· · · · · · | Double-action mechanisms, i.e. the cocking being effected during the first part of the trigger pull movement [5]

|  | F41A 19/41 |
· · · · · · | for breakdown guns [5]

|  | F41A 19/42 |
· · | having at least one hammer [5]

|  | F41A 19/43 |
· · · | in bolt-action guns [5]

|  | F41A 19/44 |
· · · · | Sear arrangements therefor (Fulltext... Hierarchy... Expanded...F41A 19/46 takes precedence) [5]

|  | F41A 19/45 |
· · · · · | for catching the hammer after each shot, i.e. in single-shot or semi- automatic firing mode [5]

|  | F41A 19/46 |
· · · · | Arrangements for the selection of automatic or semi-automatic fire [5]

|  | F41A 19/47 |
· · · · | Cocking mechanisms [5]

|  | F41A 19/48 |
· · · · · | Double-action mechanisms, i.e. the cocking being effected during the first part of the trigger pull movement [5]

|  | F41A 19/49 |
· · · | in block-action guns [5]

|  | F41A 19/50 |
· · · · | Cocking mechanisms [5]

|  | F41A 19/51 |
· · · · · | Double-action mechanisms, i.e. the cocking being effected during the first part of the trigger pull movement [5]

|  | F41A 19/52 |
· · · | Cocking mechanisms for other types of guns, e.g. fixed breech-block types, revolvers [5]

|  | F41A 19/53 |
· · · · | Double-action mechanisms, i.e. the cocking being effected during the first part of the trigger pull movement [5]

|  | F41A 19/54 |
· · · · | for breakdown guns [5]

|  | F41A 19/55 |
· | Fluid-operated firing mechanisms [5]

|  | F41A 19/56 |
· · | Ignition of the propellant charge by contact with air heated by adiabatic compression [5]

|  | F41A 19/57 |
· | Firing mechanisms operating with primer cartridge [5]

|  | F41A 19/58 |
· | Electric firing mechanisms (Fulltext... Hierarchy... Expanded...F41A 17/10, Fulltext... Hierarchy... Expanded...F41A 17/12 take precedence) [5]

|  | F41A 19/59 |
· · | Electromechanical firing mechanisms, i.e. the mechanical striker element being propelled or released by electric means [5]

|  | F41A 19/60 |
· · | characterised by the means for generating electric energy [5]

|  | F41A 19/61 |
· · · | Inductive generators [5]

|  | F41A 19/62 |
· · · | Piezo-electric generators [5]

|  | F41A 19/63 |
· · | having means for contactless transmission of electric energy, e.g. by induction, by sparking gap [5]

|  | F41A 19/64 |
· · | for automatic or burst-firing mode [5]

|  | F41A 19/65 |
· · · | for giving ripple fire, i.e. using electric sequencer switches for timed multiple-charge launching, e.g. for rocket launchers [5]

|  | F41A 19/66 |
· · · | Electronic shot-velocity control (Fulltext... Hierarchy... Expanded...F41A 19/65 takes precedence) [5]

|  | F41A 19/67 |
· · · | Burst limiters [5]

|  | F41A 19/68 |
· · | for multibarrel guns (Fulltext... Hierarchy... Expanded...F41A 19/65 takes precedence) [5]

|  | F41A 19/69 |
· · | Electric contacts or switches peculiar thereto (Fulltext... Hierarchy... Expanded...F41A 19/65 takes precedence) [5]

|  | F41A 19/70 |
· · · | Electric firing pins; Mountings therefor [5]

|  | F41A 21/00 |
Barrels; Gun tubes; Muzzle attachments; Barrel mounting means (Fulltext... Hierarchy... Expanded...F41A 25/00 takes precedence; barrel attachments for firing grenades or riot-control ammunition from smallarms Fulltext... Hierarchy... Expanded...F41C 27/06) [5]

|  | F41A 21/02 |
· | Composite barrels, i.e. barrels having multiple layers, e.g. of different materials [5]

|  | F41A 21/04 |
· · | Barrel liners [5]

|  | F41A 21/06 |
· | Plural barrels [5]

|  | F41A 21/08 |
· · | Barrel junctions [5]

|  | F41A 21/10 |
· | Insert barrels, i.e. barrels for firing reduced calibre ammunition and being mounted within the normal barrels [5]

|  | F41A 21/12 |
· | Cartridge chambers; Chamber liners (Fulltext... Hierarchy... Expanded...F41A 3/74, Fulltext... Hierarchy... Expanded...F41A 9/46, Fulltext... Hierarchy... Expanded...F41A 21/04 take precedence) [5]

|  | F41A 21/14 |
· · | Arrangement of cartridge chambers lateral to the barrel axis [5]

|  | F41A 21/16 |
· | Barrels or gun tubes characterised by the shape of the bore [5]

|  | F41A 21/18 |
· · | Grooves; Rifling [5]

|  | F41A 21/20 |
· | Barrels or gun tubes characterised by the material (Fulltext... Hierarchy... Expanded...F41A 21/02 takes precedence) [5]

|  | F41A 21/22 |
· | Barrels which have undergone surface treatment, e.g. phosphating [5]

|  | F41A 21/24 |
· | Barrels or gun tubes with fins or ribs, e.g. for cooling (Fulltext... Hierarchy... Expanded...F41G 1/42 takes precedence) [5]

|  | F41A 21/26 |
· | specially adapted for recoil reinforcement, e.g. for training purposes [5]

|  | F41A 21/28 |
· | Gas-expansion chambers; Barrels provided with gas-relieving ports (Fulltext... Hierarchy... Expanded...F41A 1/06, Fulltext... Hierarchy... Expanded...F41A 13/08 take precedence) [5]

|  | F41A 21/30 |
· | Silencers [5]

|  | F41A 21/32 |
· | Muzzle attachments or glands (Fulltext... Hierarchy... Expanded...F41A 21/26, Fulltext... Hierarchy... Expanded...F41A 21/30, Fulltext... Hierarchy... Expanded...F41A 21/46 take precedence) [5]

|  | F41A 21/34 |
· · | Flash dampers [5]

|  | F41A 21/36 |
· · | for recoil reduction (recoil reduction arrangements in general Fulltext... Hierarchy... Expanded...F41A 25/00) [5]

|  | F41A 21/38 |
· · · | adjustable [5]

|  | F41A 21/40 |
· · | Chokes for shotguns [5]

|  | F41A 21/42 |
· · · | adjustable [5]

|  | F41A 21/44 |
· | Insulation jackets; Protective jackets [5]

|  | F41A 21/46 |
· | Barrels having means for separating sabots from projectiles [5]

|  | F41A 21/48 |
· | Barrel mounting means, e.g. releasable mountings for replaceable barrels [5]

|  | F41A 23/00 |
Gun mountings, e.g. on vehicles; Disposition of guns on vehicles (Fulltext... Hierarchy... Expanded...F41A 25/00, Fulltext... Hierarchy... Expanded...F41A 27/00 take precedence) [5]

|  | F41A 23/02 |
· | Mountings without wheels [5]

|  | F41A 23/04 |
· · | Unipods [5]

|  | F41A 23/06 |
· · · | adjustable [5]

|  | F41A 23/08 |
· · | Bipods [5]

|  | F41A 23/10 |
· · · | adjustable [5]

|  | F41A 23/12 |
· · | Tripods [5]

|  | F41A 23/14 |
· · · | adjustable [5]

|  | F41A 23/16 |
· · | Testing mounts [5]

|  | F41A 23/18 |
· · | Rests for supporting smallarms in non-shooting position (racks for storage Fulltext... Hierarchy... Expanded...A47B 81/00; racks in vehicles Fulltext... Hierarchy... Expanded...B60R 11/00) [5]

|  | F41A 23/20 |
· | for disappearing guns [5]

|  | F41A 23/22 |
· · | on board of submarines [5]

|  | F41A 23/24 |
· | Turret gun mountings (feeding, loading or guiding ammunition Fulltext... Hierarchy... Expanded...F41A 9/00; mechanical elevating or traversing systems for turret guns Fulltext... Hierarchy... Expanded...F41A 27/18) [5]

|  | F41A 23/26 |
· | Mountings for transport only; Loading or unloading arrangements for guns for use with carrier vehicles (Fulltext... Hierarchy... Expanded...F41A 23/50 takes precedence) [5]

|  | F41A 23/28 |
· | Wheeled-gun mountings; Endless-track gun mountings [5]

|  | F41A 23/30 |
· · | the wheels being liftable from the ground for firing [5]

|  | F41A 23/32 |
· · | with split trails (Fulltext... Hierarchy... Expanded...F41A 23/30, Fulltext... Hierarchy... Expanded...F41A 23/46 take precedence) [5]

|  | F41A 23/34 |
· | on wheeled or endless-track vehicles [5]

|  | F41A 23/36 |
· · | on trailers (Fulltext... Hierarchy... Expanded...F41A 23/42 takes precedence) [5]

|  | F41A 23/38 |
· · | on motor-cycles [5]

|  | F41A 23/40 |
· · | on rail vehicles [5]

|  | F41A 23/42 |
· · | for rocket throwers [5]

|  | F41A 23/44 |
· | on sledges [5]

|  | F41A 23/46 |
· | Trail spades [5]

|  | F41A 23/48 |
· · | elastic [5]

|  | F41A 23/50 |
· | Travelling locks; Brakes for holding the gun platform in a fixed position during transport [5]

|  | F41A 23/52 |
· | Base plates for gun mountings [5]

|  | F41A 23/54 |
· · | for mortars [5]

|  | F41A 23/56 |
· | Arrangements for adjusting the gun platform in the vertical or horizontal position (Fulltext... Hierarchy... Expanded...F41A 17/10, Fulltext... Hierarchy... Expanded...F41A 17/12 take precedence) [5]

|  | F41A 23/58 |
· · | Hydraulic jacks [5]

|  | F41A 23/60 |
· · | Screw-operated jacks [5]

|  | F41A 25/00 |
Gun mountings permitting recoil or return to battery, e.g. gun cradles; Barrel buffers or brakes (recoilless guns Fulltext... Hierarchy... Expanded...F41A 1/08) [5]

|  | F41A 25/02 |
· | Fluid-operated systems [5]

|  | F41A 25/04 |
· · | adjustable [5]

|  | F41A 25/06 |
· | Friction-operated systems [5]

|  | F41A 25/08 |
· · | adjustable [5]

|  | F41A 25/10 |
· | Spring-operated systems [5]

|  | F41A 25/12 |
· · | using coil springs [5]

|  | F41A 25/14 |
· · · | adjustable [5]

|  | F41A 25/16 |
· | Hybrid systems [5]

|  | F41A 25/18 |
· · | Hydroelastic systems [5]

|  | F41A 25/20 |
· · | Hydropneumatic systems [5]

|  | F41A 25/22 |
· | Bearing arrangements for the reciprocating gun-mount or barrel movement [5]

|  | F41A 25/24 |
· · | using ball or roller bearings [5]

|  | F41A 25/26 |
· | Assembling or dismounting recoil elements or systems [5]

|  | F41A 27/00 |
Gun mountings permitting traversing or elevating movement, e.g. gun carriages [5]

|  | F41A 27/02 |
· | Control systems for preventing interference between the moving gun and the adjacent structure [5]

|  | F41A 27/04 |
· | Scatter-fire arrangements, i.e. means for oscillating guns automatically during firing [5]

|  | F41A 27/06 |
· | Mechanical systems (Fulltext... Hierarchy... Expanded...F41A 27/02, Fulltext... Hierarchy... Expanded...F41A 27/04, Fulltext... Hierarchy... Expanded...F41A 27/30 take precedence) [5]

|  | F41A 27/08 |
· · | Bearings, e.g. trunnions; Brakes or blocking arrangements [5]

|  | F41A 27/10 |
· · · | Bearings for supporting a pivoting gun in a wall, e.g. a turret wall [5]

|  | F41A 27/12 |
· · · | Brakes or locks for blocking traversing or elevating gear in a fixed position [5]

|  | F41A 27/14 |
· · · | Central-pivot bearings [5]

|  | F41A 27/16 |
· · · | using raceway bearings, e.g. for supporting the turret [5]

|  | F41A 27/18 |
· · | for gun turrets (Fulltext... Hierarchy... Expanded...F41A 27/08 takes precedence) [5]

|  | F41A 27/20 |
· · · | Drives for turret movements [5]

|  | F41A 27/22 |
· · | Traversing gear (Fulltext... Hierarchy... Expanded...F41A 27/18 takes precedence) [5]

|  | F41A 27/24 |
· · | Elevating gear (Fulltext... Hierarchy... Expanded...F41A 27/18 takes precedence) [5]

|  | F41A 27/26 |
· | Fluid-operated systems (Fulltext... Hierarchy... Expanded...F41A 27/02, Fulltext... Hierarchy... Expanded...F41A 27/04, Fulltext... Hierarchy... Expanded...F41A 27/30 take precedence) [5]

|  | F41A 27/28 |
· | Electrically-operated systems (Fulltext... Hierarchy... Expanded...F41A 27/02, Fulltext... Hierarchy... Expanded...F41A 27/04, Fulltext... Hierarchy... Expanded...F41A 27/30 take precedence) [5]

|  | F41A 27/30 |
· | Stabilisation or compensation systems, e.g. compensating for barrel weight or wind force [5]

|  | F41A 29/00 |
Cleaning or lubricating arrangements (injecting fluids into barrels or cartridge chambers Fulltext... Hierarchy... Expanded...F41A 13/04) [5]

|  | F41A 29/02 |
· | Scrapers or cleaning rods [5]

|  | F41A 29/04 |
· | Lubricating, oiling or greasing means, e.g. operating during use [5]

|  | F41A 31/00 |
Testing arrangements (testing mounts Fulltext... Hierarchy... Expanded...F41A 23/16) [5]

|  | F41A 31/02 |
· | for checking gun barrels [5]

|  | F41A 33/00 |
Adaptations for training (adaptations of barrels for recoil reinforcement Fulltext... Hierarchy... Expanded...F41A 21/26); Gun simulators (teaching or practice apparatus for gun-aiming or gun-laying Fulltext... Hierarchy... Expanded...F41G 3/26) [5]

|  | F41A 33/02 |
· | Light- or radiation-emitting guns [5]

|  | F41A 33/04 |
· | Acoustical simulation of gun fire, e.g. by pyrotechnic means [5]

|  | F41A 33/06 |
· | Recoil simulators [5]

|  | F41A 35/00 |
Accessories or details not otherwise provided for [5]

|  | F41A 35/02 |
· | Dust- or weather-protection caps or covers (protecting-caps for trigger guards Fulltext... Hierarchy... Expanded...F41A 17/54) [5]

|  | F41A 35/04 |
· · | Muzzle covers [5]

|  | F41A 35/06 |
· | Adaptation of guns to both right and left hand use [5]