Fairbairn, William, Sir, 1789-1874 · London, Longman, Green, Longman, Roberts & Green · leaf 110
inst it by pulling the rope c, which bends thestrap tightly upon the pulley b, and gives motion to the machine.This arrangement is in general use for sack teagles in corn mills,and for some other purposes. The same effect is sometimesproduced by the sack teagles being fixed on the lever, and,by… … 86 OX MACHINERY OF TRANSMISSION. of a sliding box a, with two projecting horns on the drivingshaft h. These horns, when slid forward by a lever (/, workingin the groove c, come in contact with the friction hoop d, whichembraces a groove in a second box, keyed upon the shaft of themachine. The…
Mills and mill-work · Machinery
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