Automatic or semi-automatic firearm

Details Automatic or semi-automatic firearm Automatic or semi-automatic firearm

1970-10-19

1977-04-26

Bentley, Stephen C.

Ordnance

Automatic

Movable barrel

89 14E, 89197, F41C 2118

Patent

active

040194230

ABSTRACT:
A stable automatic or semi-automatic firearm having a differential recoil system in which an open bolt has a designed mass and closing velocity to impact and drive a reciprocating barrel forwardly without rebound and remain locked to the barrel during the period when there is high firing pressure in the barrel. Since the bolt supports the cartridge during the time of high pressure, the cartridge is prevented from prematurely being extracted and rupturing; and since recoil momentum is utilized in arresting and returning the bolt, stability of the firearm is improved.

REFERENCES:
patent: 459828 (1891-09-01), Maxim
patent: 834753 (1906-10-01), Reifgraber
patent: 2776602 (1957-01-01), Sturtevant
patent: 2956481 (1960-10-01), Barr et al.

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