Bankers Dustproof Time Lock Co., Cincinnati, Ohio, 3 movements, manual boltwork
A. c. 1909. This example was designed to work in vault doors that had manually operated bolt works, so it incorporated a conventional bolt-dog configuration as evidenced by the bolt hole on the side. Most of the company's production run was concentrated on safes with automatic bolt motors, see examples above, making this version quite rare. About ten such examples are known. 6 1/4w x 4 3/8"h x 2 3/4"d. Case #1679, movements #2144883, 2477696, 2634141. file 139
B. c. 1906. Identical model to that depicted in 'A', except with a spotted, gold finish which was sometimes used in Remington Sherman vaults. The damascene spotting was only on the door with the sides of the case in a plain finish. This color was far less common than the silver design and was probably produced for use in a Remington and Sherman Co. vault door as this was their distinctive design. Case #3082, movements #1974296, #1974297, #1974300. The serial numbers are virtually consecutive making this one of the few Banker's time locks with this feature. Most likely this was a specification asked for by Remington as they were a premium maker. Its curious that these movements have earlier serial numbers compared to others, but the case is of a later number than any other. So does one use the case number or the movement numbers as a guide? It could be that there was a different numbering system for this style of case. Its unlikely that someone had three consecutively numbered movements to drop into a later case. file 165
C. c. 1916. The same lock as in examples A and B but with a different case design. Originally the entire case was a bright gold plating as evidenced on the side, but unfortunately it is worn from the door. This finish, like that in B for the Remington and Sherman may have been a special order. One would expect a satin brass color finish as was available from Yale, S&G and Mosler, but even so, the satin brass was not a common option. Another interesting feature in this lock is the use of movements that have gold-plated balance wheel cocks. Until this example, all Bankers Dustproof time locks had Illinois Watch movements with balance wheel cocks the same finish as the movement plate, in silver. These use the same color configuration as in Mosler locks. The serial numbers are far higher than found in most Bankers Dustproof examples too. These movements may have been swapped out by Mosler at some time later in the lock's life. Case #2371, movements# 3735892, #3747353, #4229418. file 309
The watch movement to the right is from a Banker's. The balance cock is silver, matching the rest of the movement plate. After Bankers sale to Mosler in 1916 Mosler continued to use the same movements but with the balance cocks in gold plate.
Patent drawings from #939,384 November 9, 1909 by Edgar Morton Benham. The patent was filed in 1907 but languished in red tape for over two years, possibly because it was openly admitted that it was a patent for the same outcome from "a less number of parts and simplified arrangement." If Victor really bought out the Consolidated company which had so many important patents of its own, one has to wonder why Bankers Dustproof would sink two years effort into securing such a dubious one. (1)
Last photos below show a Banker's Dustproof time lock in a beautifully restored Victor safe, the time lock parent company. Cannonball type safes were one of the most popular models made and many time lock companies made locks that could work in this type of safe such as , as well as Diebold, Yale's LS31, Y-361 and Triple L .
(1) American Genius Nineteenth Century Bank Locks and Time Locks, David Erroll & John Erroll, pp 314