Extension for mortise cylinder

Details Extension for mortise cylinder Extension for mortise cylinder

1989-02-27

1990-05-22

Wolfe, Robert L.

Locks

Operating mechanism

Key

70380, 70461, 70DIG60, E05B 904

Patent

active

049266705

ABSTRACT:
An extension for a mortise cylinder includes an extension body have a bore extending through it. First and second coupling elements are simultaneously located in the bore in the extension body and are free to rotate within the bore. A coupling slot on the first coupling element is for coupling with one of a rotating element on a mortise cylinder or a further mortise cylinder extension. A coupling tenon on the second coupling element is for coupling with a cam member or a further first coupling slot in a further first coupling element. An interconnecting tenon on the second coupling element fits into an interconnecting slot on the first coupling element for the propagation of rotation from the first coupling element to the second coupling element and to either a cam member or a further mortise cylinder extension coupled to the second coupling element.

REFERENCES:
patent: 701850 (1902-06-01), Cramond
patent: 1027777 (1912-05-01), Shaw
patent: 1564463 (1925-12-01), Best
patent: 2308322 (1943-01-01), Voight
patent: 2381136 (1945-08-01), Oshandler

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