Lock having longitudinal tumblers

Details Lock having longitudinal tumblers Lock having longitudinal tumblers

1987-03-02

1988-12-13

Gall, Lloyd A.

Locks

Operating mechanism

Key

70387, E05B 2300

Patent

active

047901608

ABSTRACT:
The invention relates to a lock comprising an assembly of identification plates provided with coding notches. A flat key, presenting a coded side, pushes the plates until their notches are brought into alignment, in which a feeler then comes into mesh by a rectilinear edge. The plates, continuing to slide under the thrust of the key, take along, via the feeler, a member for controlling the bolt. An alarm device indicates any introduction of an unsuitable key.

REFERENCES:
patent: 1103897 (1914-07-01), Ball
patent: 2595267 (1952-05-01), Julliard
patent: 3326024 (1967-06-01), Dreyfus et al.

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