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 140
ng to the design and option of theworkman; great care must be taken that the holes come exactly opposite to the ends of the needles ;for this purpose two large holes are made at tlie ends of the paste-boards, which fall upon conical points,by which means they are made to register correctly. It will… … fh remove it, or replace it, or preserve rhe figure for future use. The machine, of course, will be under-stood to consist of many sets of the lifting rods and needles, shown in the diagram, as will be perceivedby observing the disposition of the holes in the paste-board; those holes, in order that…
Mechanical engineering · Mechanics · Engineering
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