Automatic firearm

申请号 US3788190D 申请日 1972-04-10 公开(公告)号 US3788190A 公开(公告)日 1974-01-29
申请人 DUNN K; 发明人 DUNN K;
摘要 A firearm which utilizes the recoil of the explosion to automatically bring a new cartridge into position in the firing chamber and to discharge the spent cartridge. The loading mechanism includes a slide member having fingers which grip the rim of the cartridge and a cam means carried by the frame of the firearm and utilizing the rearward sliding motion between the slide member and the frame to produce upward movement of the cartridge from the magazine to the loading area and to produce alignment of the cartridge with the firing chamber of the firearm so that upon forward return movement of the slide member the cartridge is positioned in the firing chamber ready for firing.
权利要求
1. An automatic pistol having a firing chamber and including a frame, a magazine carried by said frame, a barrel carried on said frame and a slide member carried by said frame and movable between a forward position and a rearward position, said magazine being angularly inclined with respect to said barrel, the improvement comprising: said barrel having a portion extending rearward past said magazine, finger elements carried by said slide member for receiving a cartridge carried in said magazine, said finger elements being dimensioned to receive two of said cartridges at one time, said magazine having a spring urging said cartridges out of said magazine and into gripping engagement with said fingers, an ejector opening which opens upon rearward sliding movement of said slide member, a first cam member carried by said frame member and operable upon rearward movement of said slide member to urge the cartridge separated from said magazine upwardly to eject one of said cartridges through said ejector opening and to bring the other of said cartridges into said firing chamber, a second cam member operable to guide said cartridge upwardly between said fingers from a position in alignment with said magazine to a position in alignment with said barrel.
2. The pistol as defined in claim 1 and in which said second cam is disposed intermediate said fingers.
3. The pistol as defined in claim 1 and including a ramp defining the rear edge of said ejector opening.
4. The pistol as defined in claim 1 and in which said finger elements guide the spent cartridge toward said ejector opening.
5. The weapon as defined in claim 1 and in which said first cam member comprises a cam surface formed on said frame in the path of movement of said slide member and engageable with said cartridge.
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