Mechanism for remotely operating variable choke devices for shot

Firearms – Barrels – Choke devices

Patent

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Details

F41C 2100

Patent

active

041516710

ABSTRACT:
A mechanism for remotely manipulating a rotary adjustable choke device on the muzzle of a shotgun barrel. Specifically, the mechanism consists of a reciprocatory operating arm positioned intermediate the choke device and the breech end of the barrel, in combination with a connection between the arm and device for converting the reciprocatory motion of the former into oscillatory motion of the latter, thereby varying the muzzle constriction and shot pattern. The arm is positioned so that it may be manually reciprocated by the shooter to selected releasable positions corresponding to the desired choke settings and while the gun is held in firing position.

REFERENCES:
patent: 2442899 (1948-06-01), McAllister
patent: 2466203 (1949-04-01), Bristow
patent: 2600874 (1952-06-01), Hoza
patent: 2765564 (1956-10-01), Schroeder
patent: 2807903 (1957-10-01), Wheeler
patent: 2869272 (1959-01-01), Coyle
patent: 3161979 (1964-12-01), Lowe
patent: 3408762 (1968-11-01), Durao
patent: 3605313 (1971-09-01), Kranz
patent: 3812610 (1974-05-01), Kranz

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