Mechanical movements, powers, devices and appliances; (1903)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N.W. Henley & co. · leaf 382
J9 ^^ 1541. EVO-LUTION OFA WOODSCREW.— Stages ofmanufacture of the modern wood screw. American Screw Companys process. The thread is made by the roller process.
Mechanical movements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
