The Casey-Cavin reverse gear (patented 1913) was designed by William Casey, general manager, and Gustav Cavin of CLC, who also invented a pony truck and a superheater. CLC/Bill Thomas collection.

NOTE: While this air-operated power gear was a big help to engineers in easing the work of changing directions, especially when switching, it had a peculiar habit of not making the change under some quick movements of the cab lever, resulting in the engine going briefly in the wrong direction! This is something I have observed first hand from inside the cab. R.L.Kennedy