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A Standard 200177 fire alarm pull station. The Standard Electric Time Company was a Springfield, Massachusetts company founded in 1884, and was a manufacturer of synchronized clock systems and fire alarm systems. They were the oldest manufacturer of electric clocks in the United States. The company was acquired by Johnson Controls in 1970 and ...
Sangamo Electric Company; Springfield, Illinois (1899–1931) Self Winding Clock Company; New York City, New York (1886-1970) Sempire Clock Company; St.Louis, Missouri (1897-1908) Seth Thomas Clock Company (1807–Present) Sessions Clock Company; Bristol, Connecticut (1903–1969)
Electric Time produces approximately 1000 clocks annually and is the largest maker of custom outdoor clocks in the United States. [2] Electric Time produces tower clocks, post clocks, and bracket clocks. Electric Time has many clock installations throughout the world, ranging from Brazil to Turkey to Europe.
Lenzkirch Clock Co (Aktiengessellschaft fur Ukrenfabrikation) (1851-1929) factory operated by Junghans 1929-1932; Mauthe Clock Company (c1870 - 1976) Jakob Schlenker Grusen, Schwenningen (JSGUS/ISGUS) (1888–present) Johannes Schlenker, Schwenningen (1822-1883) then Schlenker and Kienzle (1883-1897) then Kienzle
The first electric clocks had prominent pendulums because this was a familiar shape and design. Smaller clocks and watches with a spiral-balance are made on the same principles as pendulum clocks. In 1918, Henry Ellis Warren invented the first synchronous electric clock in Ashland, MA, which kept time from the oscillations of the power grid.
Telechron electric alarm clock. Telechron alarm clocks are particularly popular with collectors. Until about 1940, the overwhelming majority of Telechron alarm clocks had bell alarms. The entire mechanism was enclosed in a bell housing of steel. Atop the clock's coil was a metal strip that vibrated at 60 cycles per second when the alarm was ...
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