Patent Model - Improvement in Time-Locks

Maker and role
William Kook, Patentee
Joseph Hall, Assignee
Production date
Feb 25 1879
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Object detail

Brass, metal, wood
10 7/8 x 10 x 6" (27.6 x 25.4 x 15.2cm)
12 11/16lbs (5.75kg)
Kook and Hall's patent "consists of a time-movement, so connected with a non-time-lock, or with other dogging or fastening devices of the bolt-work of a safe or vault door, that the movement may be disconnected from the non-time-lock or other fastenings at any desired time, whether the time-movement is in motion or has stopped, and of a device so arranged that if the time-movement be running it will automatically connect or set the same in a locking position again before the combination of the non-time-lock can be set and operated." (Patent number 212,610)
Object number
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