(0)F41A:0/5:
IPC6
SECTION F - MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS;BLASTING
FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND...
F41A
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WEAPONS; BLASTING

F 41

 WEAPONS
 

Notes

(1)

 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 G 09. [4]

(2)

 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.

(3)

 Attention is drawn to the definitions of "projectile", "missile" and "rocket" given in Note (2) following the title of class F 42. [4]

F 41 A

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

Notes

(1)

 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]

(2)

 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]

(3)

 Attention is drawn to the definitions given in Note (2) following the title of class F 41. [5]

 

 

 
 

 1
/ 00 Missile propulsion characterised by the use of explosive or combustible propellant charges (projecting missiles without use of explosive or combustible propellant charge F 41 B; launching rockets or torpedoes F 41 F 3/00; missile self-propulsion F 42 B 15/00) [5]

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]  

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

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]  

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

1
/ 10 • • a counter projectile being used to balance recoil [5]  
 

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

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

3
/ 04 • • with pivoting breech-block [5]  

3
/ 06 • • • about a horizontal axis transverse to the barrel axis at the rear of the block (F 41 A 3/08 takes precedence) [5]  

3
/ 08 • • • carrying a rotably mounted obturating plug of the screw-thread or the interrupted-thread type (F 41 A 3/30 takes precedence) [5]  

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

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

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]  

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

3
/ 18 • • • • hand-operated [5]  

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

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

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

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

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]  

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

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

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

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

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

3
/ 40 • • • • mounted on the bolt (F 41 A 3/42 takes precedence) [5]  

3
/ 42 • • • • hand-operated [5]  

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

3
/ 46 • • • • mounted on the bolt (F 41 A 3/48 takes precedence) [5]  

3
/ 48 • • • • hand-operated [5]  

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

3
/ 52 • • • • hand-operated [5]  

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

3
/ 56 • • • the bolt being provided with an additional slidable mass [5]  

3
/ 58 • Breakdown breech mechanisms, e.g. for shotguns [5]  

3
/ 60 • Breech mechanisms for guns having two or more barrels (F 41 A 3/58 takes precedence; for revolving-cannon guns F 41 F 1/10) [5]  

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

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

3
/ 66 • • Breech housings or frames; Receivers [5]  

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

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

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

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

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]  

3
/ 78 • • Bolt buffer or recuperator means [5]  

3
/ 80 • • • Adjustable spring buffers [5]  

3
/ 82 • • • Coil spring buffers (F 41 A 3/80 takes precedence) [5]  

3
/ 84 • • • • mounted within the gun stock [5]  

3
/ 86 • • • • mounted under the barrel [5]  

3
/ 88 • • • • mounted around the barrel [5]  

3
/ 90 • • • Fluid buffers [5]  

3
/ 92 • • • • adjustable [5]  

3
/ 94 • • • • in combination with spring buffers [5]  
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