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Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)

Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 241

An illustration from Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary, 1917, leaf 241
910. SAW-TOOTH WORM GEAR.—By thesaw-tooth form of the teeth of both wheel andworm, and the concave pitch lines of the worm, alarge area of contact is given to the teeth. 911. RIGHT- AND LEFT-HAND WORMGEAR for feed rolls or drums. … 912. THREE-PART WORM SCREW, foroperating three screw gears for a chuck, so thatthe jaws* close in the same direction.

Mechanical movements

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