Westinghouse Air Brake Company
Euclid also manufactured wheeled tractor scrapers, such as were invented by R. G. LeTourneau (later to become LeTourneau-Westinghouse, after the purchase of R. G LeTourneau, Inc. by Westinghouse Air Brake Company) and now almost singularly manufactured by Caterpillar. Euclid's tractor scrapers were powered by the same tractors as their belly dumps.