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 119
ured to a ringwhich is held by set-screws to the two sliding rods in the side frame. The ring is actuated throughconnecting-rods by the crank-shaft, and thus caused to make an up-and-down movement at eachrevolution of the latter. The walking-beam on top of the machine is attached on its left end by… … HAT-MAKING MACHINERY. 109 about half the length of that ofthe ring. The fingers, as alreadystated, being hinged to the diskand ring, thus have at their lowerextremities a movement to andfrom the centre of the hat, whilethey remain stationary at their pointof meeting above. The effect ofthis is that…
Mechanical engineering -- Dictionaries
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