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 491
r] a e /ji. *r-~ … 1400. t—H—i l 3Jfoss Sude. by the parallel motion is not precisely a straight line, but a species of Scurve; it approaches to a straight line, however, with sufficient nearness forevery practical purpose. Notwithstanding the elegance of the paraUel motion,as an expedient for maintaining the…
Mechanical engineering · Mechanics · Engineering
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