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

WEAPONS; BLASTING

|  | F41 |
WEAPONS

|  | F41 |
Note(s) In this class, the following terms are used with the meanings indicated: "Semi-automatic firearm" — 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 gun" — a gun which will continue firing so long as the initial firing pressure is maintained on the trigger. "Sighting" — bringing into visual coincidence a direction defined by a so-called "sighting" device with the direction of a target. "Aiming" — bringing a weapon to a direction differing from the sighting direction by corrections in order that the projectile may hit the target. "Laying" — setting a weapon in the correct position for hitting a mark. (not applicable in English). Although simulators are generally in class Fulltext... Hierarchy... Expanded...G09, provision is included in class Fulltext... Hierarchy... Expanded...F41 for means for practice and training which may have aspects of simulation, e.g. in apparatus for so-called "military games".

|  | F41D |
AUTOMATIC GUNS, e.g. MACHINE GUNS (guns requiring auxiliary power for loading Fulltext... Hierarchy... Expanded...F41F)

|  | F41D 1/00 |
( covered by Fulltext... Hierarchy... Expanded...F41D 3/00 )

|  | F41D 3/00 |
Locking mechanisms acting between the barrel or barrel extension and the movable bolt or breech-block (sealing aspects Fulltext... Hierarchy... Expanded...F41D 11/30)

|  | F41D 3/02 |
· | with toggle-joint lock

|  | F41D 3/04 |
· | with inertia lock

|  | F41D 3/06 |
· | the locking elements being integral with bolt or breech-block and barrel respectively

|  | F41D 5/00 |
Mechanisms for opening the lock after the shot has been fired

|  | F41D 5/02 |
· | recoil-operated

|  | F41D 5/04 |
· | gas-operated

|  | F41D 5/06 |
· · | Dust filters in gas systems therefor (filters in general Fulltext... Hierarchy... Expanded...B01D 46/00)

|  | F41D 5/08 |
· · | Gas regulators in gas systems therefor

|  | F41D 5/10 |
· · | Gas operators with expansion chambers therefor

|  | F41D 5/12 |
· | with combined recoil and gas operation

|  | F41D 7/00 |
General aspects of automatic guns; Automatic guns having particular functional concepts; Adaptations of automatic guns for special use

|  | F41D 7/02 |
· | General aspects of automatic guns, e.g. machine guns

|  | F41D 7/03 |
· · | Automatic guns built up from major assembly groups, i.e. weapon family concepts [3]

|  | F41D 7/04 |
· | Revolving-cannons (Fulltext... Hierarchy... Expanded...F41D 11/32 takes precedence)

|  | F41D 7/06 |
· | Automatic guns characterised by the charge used, e.g. for hypergolic propellants [3]

|  | F41D 7/08 |
· | Automatic guns of the unlocked type, i.e. with delay blowback [3]

|  | F41D 9/00 |
( transferred to Fulltext... Hierarchy... Expanded...F41D 10/00 )

|  | F41D 10/00 |
Feed or loading mechanisms [3]

|  | F41D 10/02 |
· | Feed mechanisms, i.e. mechanisms for bringing ammunition into ready position [3]

|  | F41D 10/04 |
· · | Sprocket type [3]

|  | F41D 10/06 |
· · · | with cartridge stripping means [3]

|  | F41D 10/08 |
· · | Reciprocating-slide type [3]

|  | F41D 10/10 |
· · · | with cartridge stripping means [3]

|  | F41D 10/12 |
· · | Magazine type (cartridge magazines for smallarms Fulltext... Hierarchy... Expanded...F41C 25/00) [3]

|  | F41D 10/14 |
· · · | in which the magazines contain cartridge feed belts (Fulltext... Hierarchy... Expanded...F41D 10/24 takes precedence; cartridge feed belts per se Fulltext... Hierarchy... Expanded...F42B 39/08) [3]

|  | F41D 10/16 |
· · · · | having provision for quick coupling of the belts of adjacent magazines [3]

|  | F41D 10/18 |
· · · · | having provision for collecting belt links after firing [3]

|  | F41D 10/20 |
· · · | in which the magazines contain unbelted cartridges (Fulltext... Hierarchy... Expanded...F41D 10/24 takes precedence) [3]

|  | F41D 10/22 |
· · · · | having an endless conveyer [3]

|  | F41D 10/24 |
· · · | in which the magazines are of drum type [3]

|  | F41D 10/26 |
· · · · | with radially-disposed cartridges [3]

|  | F41D 10/28 |
· · | for multibarrel guns [3]

|  | F41D 10/30 |
· · · | Revolving-cannon feed mechanisms [3]

|  | F41D 10/32 |
· · | with provision for handling two or more kinds of ammunition; with provision for feeding from two sides [3]

|  | F41D 10/34 |
· | Loading mechanisms, i.e. mechanisms for transferring ammunition from the ready position to the firing position [3]

|  | F41D 10/36 |
· | Details [3]

|  | F41D 10/38 |
· · | Guiding means, e.g. chutes, loading trays [3]

|  | F41D 10/40 |
· · · | Flexible chutes [3]

|  | F41D 10/42 |
· · | Boosters [3]

|  | F41D 11/00 |
Details or accessories not provided for in, or of interest apart from, the preceeding groups (releasable mountings for replaceable barrels Fulltext... Hierarchy... Expanded...F41C 21/22)

|  | F41D 11/02 |
· | Trigger mechanisms

|  | F41D 11/04 |
· | Percussion mechanisms

|  | F41D 11/06 |
· | Locking mechanisms not otherwise provided for

|  | F41D 11/08 |
· | Shot-velocity regulators

|  | F41D 11/10 |
· | Shot-number limiters

|  | F41D 11/12 |
· | Bolt buffer and recuperator means

|  | F41D 11/14 |
( transferred to Fulltext... Hierarchy... Expanded...F41D 10/00 )

|  | F41D 11/16 |
· | Firing-pin construction; Firing-pin action

|  | F41D 11/18 |
· | Ventilating systems

|  | F41D 11/20 |
· | Cooling systems; Heating systems

|  | F41D 11/22 |
· | Synchronising for firing through the propeller of an aircraft

|  | F41D 11/24 |
· | Mountings, e.g. cradles (adaptations thereof for aircraft Fulltext... Hierarchy... Expanded...B64D)

|  | F41D 11/26 |
· · | provided with shock-absorbing means (bolt-buffer and recuperator means Fulltext... Hierarchy... Expanded...F41D 11/12) [3]

|  | F41D 11/28 |
· | Testing apparatus; Checking apparatus

|  | F41D 11/30 |
· | Obturating or packing devices for gas leak prevention in breech mechanisms [3]

|  | F41D 11/32 |
· · | 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 drum-type guns [3]