Ordnance – Automatic – Firing device operation or control
Patent
1991-12-26
1993-06-01
Bentley, Stephen C.
Ordnance
Automatic
Firing device operation or control
42 6903, 89145, 89146, F41A 1951
Patent
active
052161951
ABSTRACT:
The sear is rotatably supported in the frame of the firearm to rotate around an axis of rotation. The hammer is pivotally mounted in the frame to pivot around a pivot axis. The hammer includes a striking surface. The sear includes a blocking surface which cooperates with a resting surface of the hammer. The position of the blocking surface of the sear which is determined by its axis of rotation, the position of the striking surface of the hammer, which is determined by the location of the pivot axis of the hammer, and the position of the rear end of the firing pin are selected in such a manner that when the hammer is in its decocked position, in which position the resting surface contacts the blocking surface, the striking surface of the hammer is at a distance from the rear end of the firing pin. Accordingly, the hammer does not contact in its decocked state the firing pin such that eg upon a dropping of the firearm a shot may inadvertently be fired. Furthermore, because the hammer is in its decocked position already remote from the rear end of the firing pin, a shorter and smoother path of pulling the trigger is needed when firing the firearm, which allows an improved hitting of a target. The hammer is automatically decocked after each shot.
REFERENCES:
patent: 2138213 (1938-11-01), Seidel
patent: 4589326 (1986-05-01), Kuckens et al.
patent: 4589327 (1986-05-01), Smith
Bentley Stephen C.
ITM Industrial Technology & Machines AG
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