Ordnance – Automatic – Breech block lock
Patent
1986-02-19
1987-07-07
Bentley, Stephen C.
Ordnance
Automatic
Breech block lock
F41D 300
Patent
active
046778985
ABSTRACT:
The breech block of a hand firearm consists essentially of a breech block carrier being displaceable against the force of a return spring, and a breech block being supported for relative movement in the breech block carrier and being traversed by an ignition pin. The barrel of the hand firearm is firmly connected with the stock or similar part thereof. In order to reduce the return speed of the breech block without increasing its mass, the breech block carrier is provided, behind the closing element being longitudinally displaceable in the same, with a latch which is located in the plane of symmetry of the lock and can be displaced transversely to the direction in which the barrel extends. In closed position of the breech block, the latch is in contact, with little play, by means of a rearward oblique face thereof, with a counter face of the stock or the like part. Moveover, the latch and the breech block have faces of equal slope adapted for cooperation as a pair of "inclined planes".
REFERENCES:
patent: 1338866 (1920-05-01), Payne
patent: 1340891 (1920-05-01), Graham
patent: 1363809 (1920-12-01), Payne
patent: 1425810 (1922-08-01), Thompson
patent: 2270683 (1942-06-01), Janecek
patent: 2365389 (1944-12-01), Browning
patent: 3213558 (1965-10-01), Horsrud
Bentley Stephen C.
Steyr-Daimler-Puch AG
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