Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 694
The surface of the roller a should move a very little faster than the cloth does, as it (the cloth) is drawnby the folders over the guide shafts w v in order that the portion of the cloth which is between thefeeding roller a and the shaft u may hang loosely between the two rollers, and the feeding… … Having thus described the machine, Durgin claims the mechanism by which the folders are elevateuand depressed, the same consisting of the pulley L, cam lever S, bent rods P P, chain or band N, andparts as before described, as combined with each other and applied to the folders and sweeps. Alsothe…
Mechanical engineering
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