Breech locking system for self loading fire arms
OwnerDavid E. Smithinventor
Life of this patent
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Abstract
In a locked-breech, short recoil, pistol type fire arm, the breech block slide (B) is provided with a separate locking block (E) engageable with both the barrel (C) and the slide (B) and accommodated between the underside of the barrel (C) and the upper surface of a movable trigger guard (D). Hold open means (X) are provided operable in the absence of cartridges in a magazine (T) or in the breech to allow the slide (B) to be held in the fully retracted position and simultaneously to release the trigger guard (D) for limited forward and downward movement, the trigger guard being provided with means which on movement of the trigger guard cause the locking block (E) to disengage from the barrel, whereby the barrel can be removed without the need for further disassembly of the fire arm.
Claims13
A self loading fire arm of the locked breech, short recoil pistol type having a barrel and a breech block slide provided with a separate locking block accommodated between the underside of said barrel and the upper surface of a movable trigger guard, said locking block having means for positively locking the barrel to the slide during the high pressure period of the firing cycle of the fire arm and means for releasing the slide from the barrel during the remainder of the firing cycle, said trigger guard being normally locked to the frame, and hold open means operable in the absence of cartridges in a magazine and in the breech to allow said slide to be held in the fully retracted position and simultaneously to release said trigger guard for limited forward and downward movement, said trigger guard being provided with means which on said movement cause said locking block to disengage from the barrel, whereby the barrel can be removed without the necessity for further disassembling of the fire arm.
Dependencies are inferred from the claim text.