Mechanical relocker for locking bolts

Details Mechanical relocker for locking bolts Mechanical relocker for locking bolts

1984-02-06

1986-01-07

Wolfe, Robert L.

Locks

Attack-actuated defeating mechanisms

70416, 70422, 109 635, E05B 6300

Patent

active

045627061

ABSTRACT:
A torsion spring longitudinally rotates a locking bolt when the bolt actung linkage is severed. A woodruff key or the like is upstanding from a surface of the bolt. When the linkage is undamaged, the key slides with the bolt through a slot on the lock frame. When the bolt is rotated by the spring, it is locked in the rotated position by a locking pawl. In the rotated position, the key is out of registry with the slot and the bolt cannot be withdrawn from its extended, locking position. A second embodiment replaces the key with a recess in the bolt into which a locking pawl engages to prevent movement of the locking bolt.

REFERENCES:
patent: 1376122 (1921-04-01), Songey
patent: 1458271 (1923-06-01), Clark
patent: 1593684 (1926-07-01), Anakin
patent: 1711972 (1929-05-01), Seiler
patent: 2425262 (1947-08-01), Newton
patent: 2609679 (1952-09-01), Bremer et al.
patent: 3076420 (1963-02-01), McClellan
patent: 3397000 (1968-08-01), Yoshitaka
patent: 3637277 (1972-01-01), Krug et al.
patent: 4393790 (1983-07-01), Bagwell

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