Locking mechanism

Details Locking mechanism Locking mechanism

1978-07-17

1979-07-24

Wolfe, Robert L.

Locks

Operating mechanism

Key

70362, 70364A, 70409, 70423, E05B 1714, E05B 1906, E05B 2704

Patent

active

041618718

ABSTRACT:
A locking mechanism is provided having a rotatable inner cylinder concentric with a fixed conventionally sized outer cylinder and coplanar resiliently urged coplanar pins. A face plate contains a nonrotatable slot to accept a substantially conventionally sized key at a 90 degree angle from the plane of the pins. The key is provided with grooves cut on a forward bias to depress the pins as the key and inner cylinder together are rotated through the plane of the pins. The inner cylinder is connected to bolt actuating linkage in the customary manner. A pin bar having reverse bias grooves in the same profile as the key is inserted into radial channels provided therefor during assembly of the lock, said pin bar permitting locking without the presence of the key. The key slot may contain a barrier bisecting the key slot to prevent unauthorized access to the pins, with a correspondence cleft in the key to fit around the barrier.

REFERENCES:
patent: 1477318 (1923-12-01), Crass
patent: 1766784 (1930-06-01), Gregory
patent: 3802230 (1974-04-01), Tickett

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