Yale & Towne Manufacturing Co., Stamford, Connecticut - 3 movements, Type T321 DAT & T321, T321 large case format

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A. Type T321 DAT (Delayed Action Timer) c. 1910's. A rare dual purpose time lock. Less than fifty were made with this being one known having the earliest type using a knob to actuate the Day/ Night feature. This timer contains two conventional Seth Thomas 72 hour Type T movements and one modified Type T movement that has a 7 hour duration. Type T movements were the smallest coffin style movements made for Yale. A day/night switch is provided to engage the 7 hour movement during the day time hours. This lock would fulfill two functions. The first to act as a normal overnight/weekend time lock and the second to secure the vault for short period of times during the day. the 7 hour timer could be set for intervals as short as 15 minutes. To see another Yale with modified Type T movements click here. Below is a similar, but later dated example. That example lacks the additional "Day/Stop" knob where a drive gear is located on that example. Case # #242, movements consecutively numbered T2494, T2495, special timer movement T2445. 4 3/8" w x 4 1/8" h x 2 1/2" d. file 8

B. Type T321 DAT (Delayed Action Timer). c. 1915. Same functionality as example 'A' above; this example being one of two known so far. The timer contains two conventional Seth Thomas 72 hour Type T movements and one modified Type T movement that has a 7 hour duration. Type T movements were the smallest coffin style movements made for Yale. A day/night switch is provided to engage the 7 hour movement during the day time hours. This lock would fulfill two functions. The first to act as a normal overnight/weekend time lock and the second to secure the vault for short period of times during the day. the 7 hour timer could be set for intervals as short as 15 minutes. To see another Yale with modified Type T movements click here. Below is a similar, but later dated example mounted into a safe door. Notice the Yale time lock advertisement on the door stating the safe is protected by a Yale time lock. There is also a photo of an identical model lock in the Harry Miller collection. Case #683, movements #T3307 , T3317, special timer movement #T3699. 4 3/8" w x 4 1/8" h x 2 1/2" d. file 257 

C. Type T321, c. 1900. This lock is equipped with Yale's smallest production movements the 'T'. Yale began to introduce its brass machine finished case to replace the earlier nickel plated damascened case around 1908. The low serial number on the case and movements makes this early in the production run. The lock was reputedly removed from the Honolulu Bank in Hawaii in 1941. See photo below for a similar lock mounted into a Diebold vault door. Case #109. Movements # T207, T475, T481. 4 3/8" w x 4 1/8" h x 2 3/4" d. file 146

D. Type T321, c. 1920. Same as 'B' but a bit later version using the satin silver finish. Case #271, movements consecutively numbered T2988, T2989 and T2990. 4 3/8" w x 4 1/8" h x 2 3/4" d. file 86

E. Type T322, c. late 1890's. This is a wider case format of the triple gang time lock using T movements. Why Yale would use a larger case when everything was otherwise the same as their smaller version depicted in example 'B' is unknown. Probably there was an application where the height was critical since this case is 7/8" less in height than examples A through D. This also necessitated the design of the very low profile snubber bar seen on the bottom of the case as opposed to the more conventional design over the front of the time lock dials. It also required the addition of the blued metal 'tail pieces' to connect to that snubber bar rather than being driven by a pin on the time lock's indicator dial which was Yale's standard design. Both Bankers Dustproof and Mosler used a similar trip lever and snubber bar arrangement. Notice in the third photo how Yale made provisions for the safe's bolt work to be able to be dogged by the time lock on either the left or right. One only need drill the appropriate hole on either side of the case and the bolt dog was already in place. The swoopy curved outlines of this part are beautiful. Case #41. Movements T669, T680, T681. 5"w x 3 1/2"h x 2 1/2"d. file 160

 

 

 

Photo from the Harry Miller Collection, Nicholasville, KY. 

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