Ordnance – Automatic – Firing device operation or control
Patent
1988-09-08
1990-01-09
Jordan, Charles T.
Ordnance
Automatic
Firing device operation or control
89142, F41C 500
Patent
active
048920266
ABSTRACT:
A hand-held automatic firearm comprises a trigger mechanism, which includes a hammer, arranged to be cocked as the breechblock recoils, a sustained-fire lever, controlled by the breechblock and locks the hammer as the breechblock advances, a trigger slider, movable by the trigger against spring force from an initial position to a single-shot position and further to a sustained-fire position, and a pair of mutually cooperating levers, which respectively constitute a release member and a disconnector member and are adapted each to enter the path of movement of a hammer extension and to assume a position that depends on the position of the trigger slider. The release lever and the disconnector lever are pivoted on a common upright pivot and have respective confronting camming side edges, which define between them a cam slot. A camming member is movable by the trigger slider and extends into said cam slot. The camming member moves in engagement with said camming edges as the trigger is pulled and by said movement causes pivotal movement of the pair of levers against the force of a restoring spring from an initial position, in which the release lever engages the hammer extension of the hammer when it is cocked, to a single-shot position, in which the release lever releases the hammer extension and the disconnector lever enters the path of said extension, and further to a sustained-fire position, in which the levers of said pair are disengaged from the hammer extension.
REFERENCES:
patent: 2388443 (1945-11-01), Ruger
patent: 3724325 (1973-04-01), Silsby
patent: 4664015 (1987-05-01), Kennedy
Johnson Stephen
Jordan Charles T.
Steyr-Daimler-Puch AG
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