Alligator Wrench

John Roebling's Sons Company
ca. 1910

On June 21, 1887, American Saw Works, Trenton, NJ, was granted a trademark (#14,524) for the term “Alligator” wrench. In 1901, J.A. Roebling's Sons bought the American Saw Works and acquired the trademark. Alligator wrenches were used in fitting or removing air and water piping from a locomotive from the early- to the mid-20th century.

Steel. L 40.2, W 9.4, T 1.9 cm
Steamtown National Historic Site, STEA 1370