Locks – Operating mechanism – Key
Patent
1980-07-02
1982-09-07
Wolfe, Robert L.
Locks
Operating mechanism
Key
E05B 1704
Patent
active
043477216
ABSTRACT:
A lock having a key-operated rotary plug supported within a shell. The rotary plug has an eccentric tenon which projects axially from the inner end thereof, which tenon is engaged within a transverse slot formed in the opposed face of the dead bolt to cause reciprocal slidable displacement thereof in a direction perpendicular to the rotational axis of the lock. The rotary plug also has a second eccentric tenon projecting axially from the inner end thereof, which second tenon is angularly spaced a substantial distance from the first-mentioned tenon. The bolt has a second slot which is closely adjacent but spaced from the first-mentioned slot. During rotation of the plug through a selected angle, such as 180.degree., one of the tenons engages one of the slots during only a portion of the selected angle to effect linear displacement of the dead bolt through a portion of its stroke. During this initial rotation, the other tenon is moved into the other slot such that, during the remainder of the rotation, the other tenon engages the other slot and causes continued linear displacement of the dead bolt.
REFERENCES:
patent: 1835130 (1931-12-01), Wread
patent: 1876803 (1932-09-01), Von Mehren
patent: 2275362 (1942-03-01), Golden
patent: 3349585 (1967-10-01), Walters
patent: 3436939 (1969-04-01), Sewell
Haworth Mfg., Inc.
Wolfe Robert L.
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