During their peak of popularity, Westclox sold many, many repair parts for their clocks.As a result, they needed to help clockmakers identify the parts they need by the use of catalogs and a part number.So I swapped them, and it’s worked perfectly ever since.: My grandma gave me an old Baby Ben alarm clock that didn’t work when I was seven.Typically, on the back of an alarm clock, you will see a crescent shaped opening.Just inside the opening there is a lever that can be moved to different positions within the opening. (or -, or "Slower") Move the lever in small increments and move it slowly.Charles Stahlberg and others from Waterbury, Connecticut, originally formed as "United Clock Company" on December 5, 1885, in Peru, Illinois, intending to manufacture clocks based on a technological innovation by Stahlberg.
In 1887, the company reorganized under the new name Western Clock Company.The company again went bankrupt, and was reorganized by F. Matthiessen in 1888 as the Western Clock Manufacturing Company.In 1908, the company was granted a patent for the "Big Ben" alarm clock movement.The Baby Ben started with the "Baby Ben with 2 Inch Movement", followed by 10 "mainstream" case styles. Streamlined round case, rectangular base with polished brass or nickel plated steel plate.
Looks like a Honeywell "round" thermostat mounted on a base.
The company's name was shortened to "Western Clock Company" in 1912.