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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 306

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 306
1205. DRILL FOR CURVEDHOLES, used in coal mining. Thedrill is on the end of a curved tube, andis driven by a flexible shaft. The tubeis fed forward by a pivoted arm andworm gear. … 1206. BOX-WING BLOWER.—The dis-charge openings of the disc are rectangular,with the sides enclosed. Made of sheet metal.

Mechanical movements

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