. A dictionary of arts, manufactures and mines : containing a clear exposition of their principles and practice. rms of the fliers c c, mounted on the tops of thespindles d d, which spindles also carry the loose bobbins e e. In the ordinary mode ofconstructing such machines, the spindles are turned by cords or bands passing from arotatory drum round their respective pulleys or whirls /, and the loose bobbins e, turnwith them by the friction of their slight contact to the spindle, as before said; in theimproved machine, however, the movements of the spindles and the bobbins are inde-pendent and
. A dictionary of arts, manufactures and mines : containing a clear exposition of their principles and practice. rms of the fliers c c, mounted on the tops of thespindles d d, which spindles also carry the loose bobbins e e. In the ordinary mode ofconstructing such machines, the spindles are turned by cords or bands passing from arotatory drum round their respective pulleys or whirls /, and the loose bobbins e, turnwith them by the friction of their slight contact to the spindle, as before said; in theimproved machine, however, the movements of the spindles and the bobbins are inde-pendent and distinct from each other, being actuated from different sources. The main shaft of the engine g, turned by a band and rigger a as usual, communicatesmotion by a train of wheels h, through the shaft i, to the drawing rollers at thereverse end of the machine, and causes them to deliver the filaments to be twisted. COTTON MANUFACTURE. 369 Upon the main shaft g, is mounted a cylindrical hollow box or drum-pulley, whenceone cord passes to drive the whirls and spindles / and d, and another to drive thebobbins This cylindrical box pulley is made in two parts, k and /, and slipped upon the axle withB toothed wheel m, intervening between them. The box and wheel are shown detachedin fig. 343, and partly in section at fig. 344. That portion of the box with its pulleymarked /, is fixed to the shaft g; but the other part of the box and its pulley k, and thetoothed wheel m, slide loosely round upon the shaft g, and when brought in conlact andconfined by a fixed collar n, as in the machine shown at fig. 342, they constitute twodistinct pulleys, one being intended to actuate the spindles, and the other the bobbins. In the web of the wheel m, a small bevel pinion o, is mounted upon an axle standingat right angles to the shaft g, which pinion is intended to take into the two bevel pinionsp and q, respectively fixed upon bosses, embracing the shaft in the interior of the boxes kand /. Now it
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Keywords: ., bookcentury1800, bookdecade1840, booksubje, booksubjecttechnology
