Albert H. Tinnerman was the youngest son of German immigrant George A. Tinnerman. Like his father, Albert was a tinkerer. In order to solve the problem of the porcelain on the family company's stoves cracking when panels were screwed tightly together, Albert, in 1925, invented the "speed nut." The speed nut would later be used by Henry Ford in the manufacture of automobiles and by the U.S. government in its World War II aircraft. It revolutionized assembly lines in both industries.
Image courtesy of Cleveland State University Library, Special Collections.Download Original File
