Fairbairn, William, Sir, 1789-1874 · London, Longman, Green, Longman, Roberts & Green · leaf 195
by its own weight; it is, therefore, only necessary to raise it outof its bearings when the grinding surfaces require examinationor repair. The sack teagle is very simple, and will be readily understood VOL. II. M 162 ON COEN MILLS. from the drawing, Plate III. It consists of a barrel r,… … a belt connecting the pulley on its axis with a shaft c, workedby the engine. The length of this belt is so adjusted that thesack teagle may remain at rest, or be set in motion, accord-ing as the long lever (the action of which is to tighten orrelax the belt as may be required) is raised or…
Mills and mill-work · Machinery
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