Movements in Standard Electric Time Company Clocks

Motor wound master clock movement from ca. 1930 Motor wound master clock movement from ca. 1930
Detail of circa 1930 motor-wound, 6-day, double weight driven master clock movement with separate winch mechanism mounted on common steel plate. One of the first electrically wound master clocks built to run thru prolonged power outages without the need for battery back-up. Bell included to indicate need for manual resetting of secondary equipment following a power failure.
Specially constructed salesmans sample master clock movement
Specially constructed “salesman’s sample” master clock movement. Made in response to competition from E. Howard & Co. of Boston. Plates approximately twice the normal thickness and certain gears even thicker than Howard’s. Lacks, however, the fine-tooth train characteristic of the Howard master clock movement; tooth counts same as regular production. This movement was shown as a sample of what Standard was capable of making and not necessarily what the customer would be getting unless an additional amount was paid. Few chose this option and as a result, production probably did not exceed 100 units. Later, a salesman’s demonstrator for the AR3 system was built using Standard's regular master clock movement.
Side view of salesmans sample master clock movement
Side view of “salesman’s sample” master clock movement; kick-off spring removed to reveal difference in winding lever construction.
Master clock movement designed by Herbert H. Hammond for the Dey Time Register Co.
Master clock movement designed by Herbert H. Hammond for the Dey Time Register Co. of Endicott, NY. Embodies all “Standard” design features, copied following the expiration of key patents in the early 1900’s. Hammond had previously worked for Standard!
Early 1920's master clock movement by Pacific Electric Clock Co.
Early 1920's master clock movement by Pacific Electric Clock Co., badly in need of cleaning.
circa 1950 motor-wound spring-driven master clock movement
This circa 1950 motor-wound spring-driven master clock movement was made for the Simplex Time Recorder Co. of Gardner, MA. It is identical to the equivalent "Standard" master clock movement except for certain parts of the automatic reset portion.
2 weight master clock movement
Later version of 6 or 8-day 2-weight master.
Factory method of mounting master movement in grandfather cases
Factory method of mounting master movement in grandfather cases of normal depth without rigid back board.
Movement and relays of a master clock capable of running up to 800 secondary clocks
Movement and relays of a master clock capable of running up to 800 secondary clocks without additional equipment other than that supplying electric power. Heavy duty wiring throughout. The master relay above the movement powers the coils of the 8 other relays, each of which in turn supplies current to a corresponding group of secondary clock circuits represented by one of 8 pilot clocks below. Customarily, each circuit group would have its own power supply, the failure of which would be indicated here by a stopped pilot clock. The cast iron relay covers are rarely found in a master clock case; more often they are used to protect relays on an electrical panel located elsewhere.
No. 2 secondary clock movement
No. 2 secondary clock movement, straight impulse (non-resetting), circa 1930's. Used mostly in clocks having dials 18 or 24 inches in diameter, and with longer handshaft, for marble dials in this size range.
Pacific Electric Clock Co movement
Movement stamped "No. 10B MODEL JOS. MAYER INC. MAKERS SEATTLE, U.S.A." found in earlier secondary clock by Pacific Electric Clock Co., San Francisco, Cal.

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To make this project a success, your help is needed. If you can provide a good picture of a special clock, it could well prove to be something that others would enjoy seeing here. Owners of clocks will receive credit unless they wish to remain anonymous. In return, or as a public service, we can provide in over 90% of cases, copies of original factory publications pertaining to a specific clock. These include master clock instructions, technical bulletins and wiring diagrams.

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