Abstract: A support member positioned between a receiver assembly and the rear end of a removable barrel assembly having "C" sections on each side of the support member to support the rear end of the fore-end and also to permit sliding movement of an action bar assembly therein. At the rear of the support member is a spring section which is positioned between the receiver assembly and the barrel assembly to compensate for variations of tolerances between the barrel assembly and the receiver assembly.

Abstract: A flexible base metal strip has a strong, tough and adherent abrasive armoring coating produced thereon in situ from abrasive particles of hard, high melting material selected from the group consisting of metal carbides, borides, nitrides, silicides and combinations thereof, and particles of a matrix metal, said matrix metal particles being in said armoring coating and fusion bonded to each other, to the base metal strip and to the abrasive particles to anchor and partially embed the abrasive particles therein with the particles projecting therefrom in the form of a series of sharp cutting edges. When such a strip is provided at one end with a suitable handle, it forms a convenient hand file and its flexibility permits use in a variety of situations. Attachment means may be provided at each end of the coated strip as shown in a co-pending application for attachment of the strip to a suitable frame such as a standard hack saw frame.

Abstract: A plurality of tubular projectiles are held in a container. A stem is withdrawn from one end of the container until it engages a plunger. After the other end of the container is placed in a launcher, the stem is pushed into the container forcing the plunger to move the projectiles toward the launcher, the projectile closest to the launcher being transferred from the container and properly positioned in the launcher for firing.

Abstract: An adjustable means connecting the muzzle ends of barrels in an over-and-under firearm, which adjustable means when actuated causes a separation of the barrels, thus altering the point of impact of projectile means discharged from the barrels which have been moved.

Abstract: A break-open firearm where the frame and the barrel assembly are locked in place by a sliding top lock. A top lock lever is pivotally connected to the gun frame and is operatively connected to the top lock by a helical coil spring which biases the top lock forwardly into locking position when the top lock lever is moved in a direction which decreases the diameter of the coil spring. Other embodiments of the invention provide for the helical coil spring to be connected to the frame and to the top lock lever and to the frame and the top lock. In each case, the result is that the helical coil spring is the instrument to bias the top lock forward.

Abstract: A target throwing apparatus in which a revolving magazine having a number of stacks of targets is independently and fixedly supported relative to an oscillating target throwing housing. A cocking mechanism stops the throwing arm just before reaching the over-center position whereupon initiating of the next cocking cycle throws the target. A power train consists of three equal-sized gears mounted on three parallel shafts to throw the targets and to oscillate the housing. The magazine includes a ramp and cam by which the entire column of targets is lowered by gravity prior to having springbiased fingers engage the second target from the bottom and having the lower-most target fall onto a predetermined drop pad on a target launching plate, which pad location does not change regardless of the position of the oscillating housing and launching plate. A scotch yoke assembly is utilized in translating rotary shaft motion to symmetrical reciprocating motion to oscillate the housing.

Abstract: A system for transferring the forces between reciprocably mounted firearm action bars (and a bolt assembly connected thereto) and an action spring mounted in the gun stock. A flexible wire link connects the action spring and the action bars so that rearward movement of the action bars to the breech open position causes biasing of the action spring whereupon the action spring now urges the action bars forwardly to breech closed position.