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 601
or basis of the frame 0 0, which is fastened on to the top of the circular table A by screws,as at//. The upper end of the shaft R is connected to the sliding-frame P by the springs -m n, Fig.3256. The lowermost of these springs serves to lift it, and the upper one, by means of the thumb-screw o,… … The removing of the finished screw from the tubes a is effected by the aid of the same hoop V that isconcerned in the depressing and raising of the screw-driver. S, Figs. 3255 and 3256, is a stationarytubular rod placed vertically, which receives within it a small sliding-rod p; there is a slot…
Mechanical engineering · Mechanics · Engineering
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