Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 146,706 pages of information and 232,164 images on early companies, their products and the people who designed and built them.
1893 The Cutler-Hammer Manufacturing Co. was incorporated by Harry Henderson Cutler and Edward West Hammer, specializing in electric starter motors, speed regulators and field rheostats
1900 Developed first automatic motor starter
1901 the company designed the control equipment for the Panama Canal.
By the 1930s, had obtained 28 patents for the use of vacuum valves to control heavy currents
1978 Cutler-Hammer became part of Eaton Corporation adding power control and switching devices to Eaton's product range.