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 442
de of the ratchet-wheel, there is a cam-plate t, that also turns freely on the shaft, and which iscarried in one direction by the ratchet-wheel, when the catch or hand v, which is jointed to the cam-plate, takes into the teeth of the ratchet, the two turning independently of each other in the… … turns the spur and ratchet wheel in the direction of the arrow ; and the cam-plate is also turned in toeiame diiection by the catch or hand v. This motion is gradually arrested by the enlarged or scroU formof the cam-plate, which forces out a friction-arm 6, one end of which is jointed at a to an…
Mechanical engineering · Mechanics · Engineering
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