Sargent & Greenleaf, Rochester, New York - 2 movements

  A

  B

C

A. Combined time lock and combination lock (timebination). Purpose is the same as a time lock, but designed for short duration. Dual movements, 5 to 30 minutes maximum time delay in 5 minute increments. A small pin is screwed into the hole corresponding to the desired setting time. From a York safe. For an example of a combined key lock and time lock see the Mosler example. Another example of a modified time lock to deal with shorter inter-day time intervals is a small Yale make. file 96

B. Case c.1900's is an S&G model #2. Later modified with Yale & Towne time lock movements. An interesting combination of two companies with differing periods combined into one lock.  More on this and other modified time locks.   Case and bolt #1623. file 2

C. Model  6280. A modern version of the 6200 series. In the later half of the 20th century many manufacturers cut costs by dispensing with the metal door and replacing it with a screwed on plastic cover; often with integral lenses for easier reading of the dial. c. 1950's or later. file 60