Abstract: A break open firearm having a top lever adjusting system that allows the radial position of the centerline of the top lever to be easily positioned just to the right of the centerline of the frame top tang when the action is closed.

Abstract: A break open firearm having an automatic safety system that can be easily converted to a manual safety, combined with a safety barrel selector mechanism that can also be locked in the fire position to always fire a preselected barrel first.

Abstract: In a break open firearm, an automatic ejection system that utilizes the hammer cocking rods to cam the ejector sears into position to latch the ejectors.

Abstract: An industrial gun, of the type having a transverse sliding breechblock, has a firing mechanism which automatically cocks and then releases a hammer as the breechblock closes. A sear is pivoted in the yoke or receiver of the gun in a position to engage and cock a hammer carried by the breechblock as the breechblock is moved from an open to a closed position. A cam surface on the sear bears against a cooperating cam surface on the hammer to release the hammer from the sear as the breechblock reaches the fully-closed position, in which a firing pin carried by the breechblock attains correct alignment with a shell in the gun chamber. A set screw provides an adjustable cam surface on the hammer to allow the correlation of the timing of the hammer release with the breechblock movement to be readjusted precisely as the parts wear with use.

Abstract: An electrically-fired gun, of the type having a transverse sliding breechblock, has a recoil-operated mechanism for retracting the firing pin electrode tip behind the face of the breechblock during its opening and closing movements. A movable weight is connected by a rocker arm to the firing pin assembly, and is normally latched in place to hold the electrode tip in a retracted position. Manual release of the latch allows a spring to extend the electrode tip into a firing position. Recoil of the gun on firing results in a movement of the weight that retracts the electrode tip, and the parts are automatically re-latched in this position.

Abstract: A cartridge extractor, comprising a resilient ring segment formed with a claw, is mounted within a recessed bolt face without a rivet. The wall of the bolt recess is formed with an arcuate clearance cut, radius cuts at either end of the clearance cut, and projecting lobes at the junctions of these cuts. The extractor ring has its free ends bent to form detent arms, which are seated in the radius cuts to support the claw in a position to engage a cartridge base as it enters the recess. This deflects the ring into the clearance cut, guided by the detent arms sliding over the lobes. When the claw seats in the extraction groove of the cartridge, the ring is guided back to its original position by the detent arms re-seating themselves in the radius cuts.For use in auto-loading firearms whose bolts rotate violently, a means is added to prevent relative rotation of the extractor ring, without interfering with its normal deflection.

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 mechanism 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 target positioner for an autoloading target throwing machine. The positioner can be adjustably mounted on the rotatable throwing arm and is used with a resilient target nest, whose function is to locate the target to be thrown in the proper position on a launch platform. Camming surfaces on the positioner act to force the target into proper position in the resilient target nest upon cocking of the throwing arm.

Abstract: An ejection port cover for a firearm which moves in pure rotation about an axis parallel to the bore of the firearm. The port cover is held about this axis and is oriented in the "open port" and "closed port" rotational position for proper alignment of a port cover cam with associated cam pin means on the reciprocating slide assembly since the port cover is shorter than the stroke of the slide assembly that engages and causes rotation of the port cover.