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Class Number: 89 Class Title: ORDNANCE Subclass Subclass Number Title 1.12 GUN HEATERS 1.13 MINE-DESTROYING DEVICES 1.15 WELL PERFORATORS 1.16 ENGINE STARTERS 1.2 SMOKE OR RESIDUE EJECTOR 1.25 LUBRICANT INJECTOR 1.34 LINE THROWING 1.35 TRENCH MORTARS 1.3 MUZZLE LOADING 1.42 GUN HANDLES 1.51 BOMB, FLARE AND SIGNAL DROPPING 1.52 .Drop grenade 1.53 .Sway braces 1.54 .Bomb displaced from exterior of plane 1.55 .Arming device 1.56 .Electrical and radio releases and sighting 1.57 .Explosive releases 1.58 .Shackles 1.59 .Racks 1.6 .Timing devices 1.61 .Sighting 1.7 RECOILLESS GUN 1.701 .Having a reaction mass 1.702 ..Barrel parts separable for loading 1.703 .Having pressure-control means 1.704 .Having breech closure 1.705 ..Closure has firing device 1.706 ..Cartridge-case closure 1.8 ROCKET LAUNCHING 1.801 .Having rocket-storage and transfer means 1.802 ..Launcher movable relative to storage means 1.803 ..Having magazine-gate means to feed and support rocket for launching 1.804 ..Storage means movable to facilitate launching 1.805 .Having means to transfer rocket to launcher 1.806 .Having means restraining rocket from movement in launching direction 1.807 ..Including rocket-firing means 1.808 ..Rocket spin stabilized while restrained 1.809 .Underwater launching 1.81 ..Rocket launched from container 1.811 .Having umbilical-separating means 1.812 .Having safety devices for preventing premature ignition or launching 1.813 .Having rocket-firing means 1.814 ..Rocket propellant ignited by electrical means 1.815 .Movable launcher 1.816 .Having tubular guide means 1.817 ..Including a forward closure 1.818 ..Including an auxiliary rocket-launching charge 1.819 .Having guide means 5 SUBMARINEE 125 AUTOMATIC 126 .Plural gun, barrel or bore 127 ..Firing control 128 .Convertible gun operation (e.g., to nonautomatic) 129.01 .Regulation of speed or rate of automatic fire 129.02 ..By regulating burst 130 ..By regulating time of return of breech block 131 ..By regulating time of release of hammer 132 .Firing device operation or control (e.g., full automatic) 133 ..Synchronizers 134 ..Disabled at predetermined angles of fire 135 ..Electrical 136 ..Triggers and/or remote control 137 ..Interlocks between firing and cartridge feeding 138 ...Locks bolt open 139 ..Semi-automatic (e.g., double sear) 140 ...Convertible to full automatic 141 ....Breech block, barrel or hammer disconnected 142 ....With selective safety device 143 ...Alternate control of hammer and breech block or barrel 144 ...With means for disconnecting trigger and sear 145 ....By breech block or barrel motion 146 ....Hammer disconnected 147 ...Hammer cocked and released by trigger 148 ..With selective safety device 149 ..With automatic sear or sear release 150 ..With automatic sear or trigger safety 151 ..With automatic hammer 152 ...Operates breech lock 153 ..Operates breech lock 154 ..With automatic hammer cocking and/or safety means 155 .Movable chamber type (e.g., revolver) 156 ..Operating as gas piston and/or recoil member 157 ..Recoiling barrel with revolving chambers 158 .Movable butt piece 159 .Combined movable barrel and gas operated 160 .Movable barrel (e.g., rotary) 161 ..Forwardly movable 162 ..Rearwardly movable 163 ...Barrel having motion in addition to axial, rectilinear 164 ...With breech lock latch 165 ...Long recoil 166 ....Nonrectilinear breech block motion 167 ....Nonaxial rectilinear breech block motion 168 ....Pivoted locking member or toggle lock 169 ...With accelerator and/or unlocking lever for breech mechanism 170 ...With barrel latch 171 ...Nonrectilinear breech block motion (e.g., tilting rotary) 172 ....Rotary and sliding 173 ...Sliding locking member 174 ...Rotary locking member 175 ...Toggle locking member 176 ...Pivoted locking member 177 ..Barrel buffers and brakes 178 ..Barrel return means 179 .Gas piston-type lock actuator carried by breech block (e.g., firing pin) 180 .Breech block lock (positive or impositive)) 181 ..With latch 182 ..Inertia member released lock 183 ...Blow back initiated 184 ..Nonrectilinear breech block motion (e.g., tilting rotary) 185 ...Rotary and sliding 186 ..Nonaxial, rectilinear, breech block motion 187.01 ..Sliding locking member 187.02 ...Cylindrical or ball bearing 188 ..Rotary locking member 189 ..Toggle locking member 190 ..Pivoted locking member 191.01 .Gas piston type 191.02 ..Annular piston 192 ..Gas piston compresses breech opening spring 193 ..Gas ports and/or regulators 194 .Blow back breech block 195 ..Pistol grip magazine 196 ...Breech slide type 197 ..Box magazine 198 .Buffers and brakes 199 .Receiver closures and/or breech block return means 4.05 EXPLOSION OPENED BREECH 4.1 .Rotary breech block 4.2 .Transverse sliding breech block 4.5 .Blow back breech block 6 FUSE SETTERS 6.5 .Combined with projecting, launching or releasing devices * PNEUMATIC 7 .Explosive charge 8 ACCELARATING 9 MACHINE GUNS 11 .Axially moving breech block 12 .Revolving barrels 13.05 .Revolving cylinders 13.1 ..Nonparallel bores 1.41 MULTIPLE BARREL GUNS 14.05 BARRELS 14.1 .With heat exchanger 14.2 .Flash shield 14.3 .Recoil absorbers and climb arrestors 14.4 .Silencers 14.5 .Recoil increasers 14.6 .Sabot strippers 15 .Wound 16 .Composite 17 BREECH CLOSURES 18 .Key locked 19 .Screw 20.2 ..Interrupted 20.4 ...Motor operated 21 ...Fixed ammunition 22 .Transverse 23 ..Sliding and swinging 24 ..Sliding 25 ..Swinging 26 .Gas checks 27.11 FIRING 27.12 .Safetyy 27.13 .Primer fired 27.14 .Percussion firing 27.3 .Gun firing actuators 28.05 .Electric 28.1 ..Electrical and mechanical 28.2 ..Training and firing 29 PRACTICE BARRELS 30 VENTS AND STOPPERS 31 TOMPIONS AND VALVES 33.01 CARTRIDGE FEEDING 33.02 .Drum magazine 33.03 .Movable chamber 33.04 .Selective feed 33.05 .With rammer separated breech block 33.1 .With magazine 33.14 ..Belt feed 33.16 ...With rotary feeder 33.17 ..With rotary feeder 33.2 .Belt feed 33.25 ..With rotary feeder 33.4 .Empty shell receivers 33.5 .Cartridge feeding auxiliary feeder 34 .Holders 35.01 .Belts 35.02 ..Disintegrating type 36.01 SHIELDS 36.02 .Shape or composition 36.03 .Rotating shield 36.04 .For fixed structure 36.05 .Body 36.06 .Small arms attached 36.07 .Transportable 36.08 ..Self-propelled, e.g., tanks 36.09 ..Wheeled 36.11 .For aircraft 36.12 .For ships 36.13 .Turret type 36.14 ..With vision slit or gun port closures 36.15 .On elevatable platform 36.16 .Anti-aircraft type 36.17 .With explosive device 37.01 MOUNTS 37.02 .Anti-aircraft 37.03 .Light machine gun type 37.04 .Rifle and pistol mounts 37.05 .Mortars 37.06 .Submarine 37.07 .Trunnion 37.08 .Counterbalances 37.09 .Leveling 37.11 .Locks 37.12 .Spherical or oval bearing gun support 37.13 .Bases 37.14 .Reciprocating mounts 37.15 .With body protecting devices 37.16 .Aircraft type 37.17 ..Power operated 37.18 ..On enginee 37.19 ..On aircraft wing 37.21 ..Retractable gun turret 37.22 ..Multiple guns on mount 38 .Disappearing gun 39 ..Counterpoise 40.01 .For field use 40.02 ..Wheeled mortars 40.03 ..On armored car 40.04 ..Nonshielded motor driven guns 40.05 ..On sleds 40.06 ..On tripods (i.e., for light guns) 40.07 ..Libers and caissons 40.08 ..With hitches and couplings 40.09 ..With training spades 40.11 ..Carriage suspended for firing 40.12 ..Traveling locks 40.13 ..By separate transport carriage 40.14 ..Components are separable for transport 40.15 ..Trail carriages and links 40.16 ..Railroad type 41.01 .Training mechanisms 41.02 ..Motor operated 41.03 ...Predetermining parameters for automatic firing 41.04 ...Eliminates lag or overrun 41.05 ...By television monitoring 41.06 ...By light reception 41.07 ...By radar 41.08 ...By sound 41.09 ...Gyroscopically or pendulum controlled 41.11 ...Compensates for trunnion tilt 41.12 ...By hydraulic means 41.13 ...For scattering effect 41.14 ...For naval gun fire control 41.15 ...With unitary control for plural motors 41.16 ..For relatively movable gun barrels 41.17 ..Aiming device mounted on gun 41.18 ..For limiting the field of fire 41.19 ..Sights or line devices 41.21 ...On aircraft 41.22 ...For anti-aircraft 42.01 .With recoil check 42.02 ..On trail spade 42.03 ..Fire-out-of-battery type 43.01 ..Fluid 43.02 ...With function of elevation 44.01 ..Spring type 44.02 ...Elastic type 45 LOADING 46 .Hoisting apparatus 47 .Rammers 1.11 WAGING WAR 1.14 EXPLOSIVE OPERATED APPARATUS 1.4 CHARGING MECHANISMS FOR GUNS 1.1 MISCELLANEOUS