Sargent & Greenleaf, Rochester, New York - 4 movements

  A

  B

  C

A. Model R, (later no. 6401) with standard drop bolt design. Movements consecutively numbered 4335 through 4338. file 25

B. Same as above except equipped with optional external drop bolt release lever. This was known as a 'throw-off device'. Its purpose is to permit the door to be closed in the daytime, even if the time lock has been set. This is done by pushing the lever, thus throwing the bolt from the locked to the unlocked position. At closing time, the bolt is thrown to the locked position by again pushing the lever, and the time lock goes on guard (is armed). Timers also run for extended 120 hour period. file 96

C. Model N. (later called model #6405). c. 1910-20. Attractive slim model with S&G's largest 'M' sized movements. No drop bolt, equipped with a trigger that would be used to actuate other locks or could be used with an external bolt actuation device. Case # N-85, 'M' sized movements #1895, #1850, #1747, #1739. file 55