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 641
mbs with hooked teeth, from which tooth it has to be released in order to bo deposited on the warp.These teeth frequently allow some portion of the material to tailor slip off too soon. This difficulty I design to obviate by my improvement, which consists in the employment of an apronof some… … —ft bottom of this bos is thickly perforated all over with small holes, and it communicates by pipes fromone or both sides with a fan, blower, or other apparatus capable of withdrawing the air and forming avacuum within. The air being withdrawn from the box, the external air rushes through the…
Mechanical engineering
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