Firearms – Revolvers
Patent
1978-11-20
1980-10-21
Jordan, Charles T.
Firearms
Revolvers
F41C 100
Patent
active
042286069
ABSTRACT:
Improved means for releasably locking the cylinder of a small, single action revolver in proper rotatable position within the frame of the revolver. A cylinder axis pin is adapted to extend through a first bore in the front portion of the frame, then through a central bore in the cylinder, and into a bore in the rear portion of the frame which is axially aligned with the first bore. A counterbore is provided in the front portion of the frame extending inwardly into the front portion of the frame coaxially with the first bore therein. A lip extends downwardly over the top portion of the counterbore at its open end, i.e., at the front or barrel side of the front portion of the frame. A cylindrical coil spring is positioned in the counterbore so that the cylinder axis pin can slide longitudinally through the open cylindrical portion of the spring. A lug extends from the cylindrical surface of the pin and is adapted to slide past the lip at the opening of the counterbore and push against the coil spring when the pin is pushed through the first bore and the bore in the cylinder, with the lug extending downwardly away from the lip. When the lug on the pin has been pushed past the lip and into the counterbore, the pin is rotated. The coil spring biases the lug into firm contact with the lip at the opening of the counterbore, thereby releasably locking the pin and, thus, the cylinder in place.
REFERENCES:
patent: 884119 (1908-04-01), Zaiser
patent: 2955373 (1960-10-01), Ruger
patent: 3613285 (1971-10-01), Kennedy
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