Lock body with lock plates opened or closed by a cylindrical key

Details Lock body with lock plates opened or closed by a cylindrical key Lock body with lock plates opened or closed by a cylindrical key

1978-02-08

1980-11-11

Wolfe, Robert L.

Locks

Operating mechanism

Key

70409, E05B 1908, E05B 2906

Patent

active

042325390

ABSTRACT:
A lock with plate-shaped tumblers opened or closed by a cylindrical key bar composed of a cylindrical key bar having annular extending grooves corresponding to the tumblers, cylindrical plug, lock body, protecting ring, protecting plate and several plate-shaped tumblers having square or oval holes therethrough arranged in single row, double rows or cross rows. The tumblers are arranged within the plug by single row, double row or cross row. When the lock is in the closed state, the tumblers are spring biased into a first set of obstructing grooves in the lock body. When the key bar is first inserted into the lock through the tumbler holes, the tumblers are pushed into a second set of grooves in the lock opposing the first set. When the key is turned, the tumblers fall into the corresponding grooves and upon further turning the sides of the grooves engage the tumblers turning the plug and opening the lock.

REFERENCES:
patent: 1635724 (1927-07-01), Morris

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