Combination lock for safes and the like

Details Combination lock for safes and the like Combination lock for safes and the like

1976-12-17

1978-07-18

Frazier, Roy D.

Locks

Operating mechanism

Combination

70311, 70313, 70316, 70333A, E05B 3712

Patent

active

041007760

ABSTRACT:
Combination lock for the control of the retraction of a lock latch comprising a multiplicity of notched members each displaceable as a function of a numeral or number in the combination, in order that, upon display of the right combination, the notches are aligned with a device for retracting the latch, characterized in that said device comprises means such that, by acting on a same member for instance a button, in a first phase the rake can be moved towards engagement with the notches then aligned, and in a second phase the driving of the latch in a retraction movement can be ensured.

REFERENCES:
patent: 92844 (1889-07-01), Lamb
patent: 2104516 (1938-01-01), Hage
patent: 2677265 (1954-04-01), Bergendahl
patent: 3034329 (1962-05-01), Pitney et al.
patent: 3045466 (1962-07-01), Herlong
patent: 3423972 (1969-01-01), Marti et al.
patent: 3801761 (1974-04-01), Green
patent: 3981167 (1976-09-01), Philips

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