Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 461
FiQ. 2. 1< lo. ;i. Fio. 4. Fig. 5. Figs. 2, 3.—Single hay-fork. Fios. 4, .5.—Harris douljle Imrpoon-fork. of the single pulley enters the open space of the double one, where it locks. Both are thenelevated t(jgether, until the registering-head engages t he carrier-head. Fig. J) shows an appara-
Mechanical engineering
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