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Yale & Towne Manufacturing Co., Stamford, Connecticut - 2 movements, Type K22, Type T261 & Type T261 specials
Both A, B are the same model using identical 'L' type movements, the second smallest made by Yale, but with different metals used for the case and associated bolt mechanism. The color of metal as well as the treatment used on the surface (plain, or some variety of damascene) would be chosen to compliment surrounding vault door mechanism. Some exterior decoration took on fanciful designs. See Diebold locks. The L sized movement was the most popular size ever introduced by Yale. Movements numbered after 5000 were made by Seth Thomas after E. Howard exited the time lock business in 1902 and are often confused as being made by E. Howard because the two looked very similar. 5"w x 4.25"h x 3"d. A - case #682, movement# 28388, 28389; B- case # 869, movements #38544, 38672. B- file 45 C. Same as examples above but with later movements made in Switzerland from the1950's. This case is slightly earlier than the one illustrated in example A and would have originally had those type of Seth Thomas made movements; also features a less common right-hand hinged door. Case # 624, movement #62906, 62907. file 125 D. Type K22. c. 1900 -1920's. This lock was developed in response to the need for a smaller time lock to fit into a more compact emergency safe doors, chests and yet still used the same L sized movements as in the three examples above. 4.25"w x 3.5"h x 2.5"d. The movements and dials are consecutively numbered 33536 and 33537. Case #213. file 108 E. Type T261 special. c. 1920's. Timer contains a standard 72 hour Type 'T' movement as well as a modified Seth Thomas Type T movement that has a 7 hour duration. Type T movements were the smallest coffin style movements made for Yale. See close up last photo for D, below. The timers could be set for intervals as short as 15 minutes. This was an intra-day lock used to keep a small vault or cash drawer secured for short periods of time during the day and was combined with the other regular lock for longer periods. This results in a quandary, as for periods longer than the maximum of 7 hours on the inter-day timer the safe is controlled by only one time lock - a potential disaster if the door is locked and that one timer should fail. These modified movements were never popular and few locks equipped with them exist. Case also is smaller than the smallest standard sized case Yale made (see example D above) and has an unusual push-button door release rather than normal key lock. This must have incorporated some new design since on the inside of the door the words "Patent Pending" is stamped. It is the smallest Yale lock in a two movement configuration known and is the only known example of this type of lock. 3.875" x 3.4"h x 2.5"d. The movements are consecutively numbered T2881 and T2882. To see another Yale with this rare type of combination of regular and modified movements click here. file 82 F. Type T261 intra-day. c. 1930 - 1950's. This timer contains two modified Seth Thomas Type T movements that each have a 7 hour duration within a T361 case that would normally have three T movements. If one looks closely one sees that three movements could not be placed since there is a noticeable indentation needed by the far right lock that would intrude into the movement plate if one were to be placed into the blank spot. Type T movements were the smallest coffin style movements made for Yale. The bottom photo shows the switch provided to stop the movement at will by engaging a small pin against the balance wheel at any time during operation (knob located within red square). The timers could be set for intervals as short as 15 minutes. This was an inter-day lock used to keep a small vault or cash drawer secured for short periods of time during the day. These modified movements were never popular and few locks equipped with them exist. The movements are consecutively numbered T3661 and T3662. A later standard 2 movement version of this lock from the 1950's. file 62
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