Abstract: In a firing mechanism for Gatling-type guns, separate safing and firing cams are located at a firing position coinciding with a notch in an annular safing ring against which cocking levers ride to maintain their firing pins in pre-cocked conditions. To safe the firing mechanism, the safing cam is positioned to bridge the notch and maintain the firing pins pre-cocked as they revolve through the firing position. When the mechanism is armed, a cocking ramp surface of the firing cam is then positioned to cam the cocking levers rearwardly, cocking their firing pins. Immediately thereafter, the cocking levers drop off a firing cam sear corner into the notch now exposed by the safing cam to successively fire off ammunition rounds.

Abstract: An ammunition handling system is provided with a magazine consisting of a plurality of modular, highly portable magazine packs which are readily installed in a mechanized support frame. The magazine packs contain separate ammunition conveyors commonly driven from the frame. Guides are positioned to effect direct transfers of ammunition rounds between conveyors of adjacent ammunition packs and thus to establish linear linkless ammunition round movement along a serpentine path leading to a magazine exit and ultimately to a rapid-fire gun. Rearming the gun simply involves replacing empty magazine packs with magazine packs pre-loaded with live ammunition rounds.

Abstract: This invention has the provision in an automatic gun having a relatively small diameter barrel cluster, which rotates at a first velocity, of a relatively small diameter stationary cam track which controls and drives the gun bolts through their respective fore and aft dwells and adjacent accelerations and decelerations, and an additional relatively small diameter cam track which rotates in the opposite direction at a multiple of said first velocity to control and drive the gun bolts through the cross-overs of the stationary cam track.

Abstract: A Gatling gun wherein a fluid under pressure drives a plurality of double acting pistons to respectively reciprocate each of the gun bolts in the rotor. The gun bolts have respective cam followers which operate in a stationary helical cam to cause rotation of the rotor.