Abstract: A kit for permitting the mounting and removal of spiral lock washers to and from an annular washer retaining groove on a tumbler wheel post of a combination lock or the like includes a cylindrical tubular container-tool with an internal chamber for storing a washer removing tool and a washer guide stub.
Abstract: A key operated rotary plug cylinder lock having rotary disc tumblers with a concentric cylindrical boss on one face of each disc tumbler projecting axially into internesting relation into a complemental cylindrical well or recess in the confronting face of the next adjacent disc tumbler. A lock-out pin mechanism to lock the plug against rotation when excessive rearward stress is exerted thereon, and a frangible lost motion coupling between the tumblers and the shell portion of the plug breakable upon excess torquing forces are also provided.
Type:
Grant
Filed:
April 28, 1976
Date of Patent:
February 22, 1977
Assignees:
H. Edward Tickel, Jr., Harry C. Miller
Inventors:
Harry C. Miller, Herman Edward Tickel, Jr.
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