Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 955
42I-5, … 4258. der-arms are secured to the cylinder-gate, which is moved bymeans of a rack and pinion in connection with the spider, the long hub Berving as a guide for the motion of the latter. Onthe upper end of the spider is a flat disk fitting within a smallcylinder, and moving within the cylinder…
Mechanical engineering -- Dictionaries
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