Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 612
me to screw-bolts and nuts of ditierent sizes and pitches of thi-ead SCREWING MACHINE, DOUBLE. 605 The screwing-spindles are of malleable iron to insure stren!:;th, and are made hollow to allow thebolts to pass into them as they are screwed. The chucks are fast upon the ends of the spindles, andto… … but that for the larger spindle is differently constructed, as will be observed from the face view of itgiven in Fig. 3287. This consists of a strong plate \V, annularly recessed to receive a ring X, flushwith its exterior surface. The ring X has a portion of its circumference cut into teeth to…
Mechanical engineering · Mechanics · Engineering
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