Inside Out Library
Mechanical movements, powers, devices and appliances (1901)
Hiscox, Gardner Dexter, 1822?-1908 · New York, N. W. Henley & company · leaf 244
915. INTERNAL WORM-GEAR WHEEL fordriving a spur-gear pinion. … 916. WORM-GEAR PINION to drive an inter-nal spur-gear wheel. 917. ANTI-FRICTION WORM GEAR.-Mechanical movements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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