Recoil block or brake for a linear breech mechanism in an automa

Details Recoil block or brake for a linear breech mechanism in an automa Recoil block or brake for a linear breech mechanism in an automa

1981-03-11

1983-05-03

Bentley, Stephen C.

Ordnance

Automatic

Breech block lock

89198, F41D 1106

Patent

active

043816940

ABSTRACT:
A recoil brake or block mechanism for an automatic fire arm having a linearly reciprocating breech block. This mechanism includes a slide which is reciprocally mounted on the breech block. A two-armed lever is pivotally mounted in the housing of the fire arm and is adapted to coact with the slide so as to absorb a portion of the recoil energy. The slide has front and rear contacting surfaces and the two-armed lever has a pair of arms, each of which has a control surface which is adapted to respectively coact with one of said contacting surfaces. The center of gravity of the two-armed lever is located in the longer arm of the two-armed lever at a distance from its pivot support.

REFERENCES:
patent: 2890626 (1959-06-01), Amsler
patent: 3890881 (1975-06-01), Hurlemann et al.
patent: 3960053 (1976-06-01), Conley

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