Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 146,681 pages of information and 232,152 images on early companies, their products and the people who designed and built them.

James Harry Keighly McCollum

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1860-70 Born in Toronto

Before the first World War, he worked in Toronto as an electrician before moving on to internal combustion engines, including his version of the single-sleeve motor.

Possibly professor at Toronto University (needs confirmation)

1914 Visited England and had a meeting with Argyll Motors. Came to a sharing arrangement with Peter Burt concerning the Burt-McCollum sleeve-valve engine.

After WW1, it appears he may have moved to the U.S. to work with his brother or son, Henry John de Neville McCollum.

1930/38 Patent. VACUUM POWER CLUTCH. James Harry Keighley McCollum and Henry John De Neville McCollum, Long Branch, N. J., assignors to A. Parker-Smith, New York.[1]

He was married (wife's name possibly Florence) and had at least one male grandson.

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