High safety bolt control devices

Details High safety bolt control devices High safety bolt control devices

1980-01-18

1982-02-23

Wolfe, Robert L.

Locks

Operating mechanism

Key

70451, 70452, E05B 6300

Patent

active

043163718

ABSTRACT:
A bolt assembly used for locking and unlocking a door-leaf, which comprises a bolt movable from the outside by a key introduced into the barrel of a safety cylinder, the housing of the barrel comprising a flange which can be immobilized in rotation and translation by three plates fixed to the outer surface of the door by bolt means, a fourth plate covering said bolt means. This plate is treated against drilling, and the last three plates are soldered to each other and lodged in a housing.
By loosening the bolt means and removing the first plate, the safety cylinder can be replaced.

REFERENCES:
patent: 3083563 (1963-04-01), Greenwald
patent: 4073172 (1978-02-01), Schlage
patent: 4074552 (1978-02-01), Smith
patent: 4160368 (1979-07-01), Solow
patent: 4237712 (1980-12-01), Cramer

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