Mosler Safe and Lock Co., Covington, Kentucky


A

B

A. This lock represents the first type put out by Mosler Safe and
Lock in 1887. That same year Mosler had bought out the patent rights to Beard & Brother's time lock design and left it vitally
unchanged. It contains two 48 hour E. Howard movements controlled by a central dial. They
wholesaled at $78.00 each to Mosler from E. Howard. Yale used a
design similar to this where two movements are controlled by one dial. Of the 400 of this
first type of time lock made by Mosler only 5 are known. Movement #699, case #87. file
105
B. This lock was introduced in 1891. It featured Phinneas King's
calendar mechanism first patented in 1878, improved and again patented in 1891 and
appearing in this model for the first time. This model was also able to lock and unlock
during the course of the day, much like the Holms Electric. The
calendar mechanism is based around the seven day dial allowing the lock to be adjusted to
pass over its daily open periods for as long as the movements had reserve power, allowing
for Sundays, bank holidays or other planned closures. At $88.50 wholesale, this lock was
possibly the most expensive two movement time lock produced. (1) The Sargent and Greenleaf Model 2 and Yale Model
1 both wholesaled for around $50.00 in the 1880's. The retail price of the locks were
generally ten times the wholesale price. Making the time lock business an
extremely profitable one. This resulted in much patent litigation and eventually market
collusion amongst the largest players, Sargent and Yale. This example had a bronze door
insert because it was probably used in a coin safe where a glass insert would likely be
broken and included the top porthole windows to monitor the movements. This is the only
lock configuration I know of that had the bolt release from the top of the case. The style
indicates that it was used with automatic bolt motors. According to Mr. Erroll's book
there were 200 of these made, with the one illustrated as the only known example. This
makes two. However if the locks were sequentially numbered, the one in Erroll's book is
363 with this one at 808; there had to be more. 4 5/8"h x 6"w x 2 5/8"d.
Case #12, movement #808. file 138
This company is not to be confused with the Mosler Safe Company which was the result of a series of
consolidations of earlier companies including this one, Mosler Bahmann and Banker's Dustproof Time Lock Co. That company
emerged in 1917.

(1) American Genius
Nineteenth Century Bank Locks and Time Locks, David Erroll & John Erroll, pg 260.