Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 335
Two discs drive the speedshaft, between which andthe driving disc are tworollers pivoted to trans-verse spindles. The rol-lers are kept to their slow-speed position between thediscs by springs. A con-necting rod draws the rol-lers toward the high-speedposition. Friction press-ure on the rollers is… … 1325. BELT HOLDER, Wellingtonmodel. Does away with a loose pulley. Thebelt is guided on to a set of rollers in a fixedframe at the side of the driving pulley. Savestime and avoids danger in putting on belts. MILL AND FACTORY APPLIANCES. 325 J^y^K )i^ 1326. JOINTED RADIAL ARM, for ^ ■ •• drilling…
Mechanical movements
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