
Sargent & Greenleaf, Rochester New York - 2
movements, Model #4
A
B
C
D
The third photo shows an example of the Model #4 (v.2) with
a solid door that was an after-market insert where there had originally been
a pane of glass. The insert has the same damascene pattern as the case and
so was surely supplied by S&G and is secured by the same tabs as used for
the standard glass insert. Contrast this with the door shown on the photos
directly above this one. There the door is one solid piece, no insert. What
looks like an insert is actually milled into the solid door and then
finished off with the matching damascene pattern along with the case. This
is how these 'coin door options' were made as an OEM from the factory.
E
F
G
G
H
A. Model #4 (later no. 6204), version 1. c. 1879. In July of 1878,
Sargent and Greenleaf introduced their Model #4 time lock. It was smaller than the #3
giving it the advantage of being able to fit in more and smaller existing vault doors, but
with no compromise in security or features and thus still having a hefty $400 retail price
tag. This model was the first time the firm employed three new features. First, were
Geneva stops which would not become standard on the rest of their line of time locks until
a few years later. Second, a split front movement plate, the beginnings of a modular
design that would become fully developed later. Third, the shift from the door having a
lever type lock to the simpler (cheaper) handcuff style. By 1888 this type of door lock
was used on all Sargent time lock doors (1). The lock illustrated has 46
hour, solid enamel dials, the earliest version. These as well as the 46 hour version were
the earliest type used between the lock's introduction in 1878 and the switch to the
company's ubiquitous 'wagon wheel' style in the later 1880's. Notice that the locks
illustrated on the prior page are also labeled as Model #4 even though they have only one
movement and look and function quite differently from those depicted on this page. Sargent
used their model numbers to denote the size of the lock case. Thus because both
used the same sized case, they were both called number four. This made sense since size
was the first consideration as to whether a time lock could be installed within a vault
door. This is the same lock illustrated in American Genius, page 195-196. Sargent made 365
of the first version with 15 known to survive. 4 1/2" x 4 1/2" x 2 3/4". Case, bolt and movement #217. file
149
B. Model #4 version 2. c. 1884. This version had subtle
differences from the earlier version. The Geneva stops are of a more conventional style,
the movements have an additional 2 hours giving a 48 hour duration, and the movements have
an additional two bolts at the bottom that provide additional attachment to the case. See
a series of photos and videos of the cleaning and
restoration
of this lock. Case, bolt and movement #443. file 116
C. Model #4 version 3. c. 1889. By 1889 the Model #4 had 72 hour
movements with matching dials. The wagon wheel design was adopted to conform with that
used in other models of Sargent's time locks. Geneva stops have been move toward the case
sides to accommodate the larger spring barrel needed for the extended time duration.
Jeweled bronze case, spotted pattern. About 800 of this style were made with 30 or so
thought to have survived. Case and bolt #750, movement #747. file
107
D. Model #4, September 20, 1902. Same as 'C' but equipped with less
common solid door in place of glass. This was used in areas where heavy coin bags could
come into contact with the time lock's door. Crystalline pattern is well illustrated.
Dials have Sargent & Greenleaf Co. on them which was introduced in 1896. Another solid
door lock illustrating the spotted pattern.
This lock is documented in a S&G logbook showing the lock was ordered
September 20, 1902. The customer is hard to read but appears to be Pacle
(Chicago) S. Door, meaning solid door. See photo of log book entry below. Case and bolt #1690,
movement #1685. file 87
E. Model #4. c. 1930's. A version with polished case.
Versions, post 1918, had the name Sargent & Greenleaf, Inc. on the time dials.
Engraving was eliminated from the rear plate, bolt work and drop lever. All versions of
the model 4 cost $400, just as much as the larger and equally secure model 3 and 2.
Sargent continued to make the model 4 at least through 1950, with total production
eventually exceeding 5000 units, making it Sargent & Greenleaf's most successful
design. However, like most small-format time locks, the model 4 was commonly mounted in
smaller safes and often junked or scrapped with the safe. Consequently the model 4 is
still rather rare with about 200 examples of all versions surviving (2).
Case #3465, movement #4933. file 81
F. Model #4, c. 1930's. This lock has a special
order heavy
chrome plating. Some Urban McNeal safes used this chrome plated case design. I have seen only one other such example. Case #3552,
movement # 1676. file 172
G. Model #4 c. later 1920's-1930's. Satin nickel case.
Similar to example E, but a bit later in the production run. By this time
the style for safes and vaults had changed to the sleek and silver
colored art deco designs. S&G also changed the color of their screws from a
deep blue in their earlier, brass-cased models to a lighter blue in their
later silver-cased models. This was true across their production line. These
were still very high quality movements as seen in the two photos of the
movement front and rear plates. The movement wheel train is fully jeweled
through to the main spring barrel. Even the best clocks of the time did not
have this extensive use of pivot jewels in their movements. No other time
lock movement that this author has seen from S&G or others using E. Howard
or Seth Thomas has every wheel in the train, save the mainspring barrel,
jeweled. Case #3883, movement #5358. file 260
H. Model #4, c. 1930's. A modification by Andy Kotas
in the 1960's.
See more details on his as well as other Sargent & Greenleaf time lock
modifications.
Case #2668, modification stamped #454, file
160

Photos of a Sargent and Greenleaf #4 mounted to an inner
safe door. The conventional place for a time lock is normally on the main door to protect
the entire safe. Here it appears that only the inner, separate safe compartment merited
the extra security of a time lock. It is also possible that the configuration of the
unusual main door that was split down the middle prevented this type of installation on
the main doors. The next row of photos show a more conventional installation
on a Diebold safe door. Diebold began operations in 1851 making safes and
vaults, but did not enter the time lock business until 1894. So there are
numerous examples of Diebold safes with Sargent and
Yale time locks. There were probably others
too.

Sargent and Greenleaf ledger book showing the order for lock
illustrated above as D.
(1), (2), (3) American
Genius Nineteenth Century Bank Locks and Time Locks, David Erroll & John Erroll,
pp. 195; pp 197; pp. 322