Cotton weaving: its development, principles, and practice . ough an expanding comb, H, and thenceover the carrier roller, J, to the beam, K. The comb, H,is so constructed that it will expand or contract by theturning of the screw, H, of which there are two, one ateach end. These are furnished with a hand wheel, asshewn. The purpose of this expansion is to evenly spreadthe yarn over the beam between the flanges to preventits forming ridges and hollows which strain the yarn, orcause it to run slack in being drawn off in the sizing pro-cess, and both of which would produce undesirableresults. The
Cotton weaving: its development, principles, and practice . ough an expanding comb, H, and thenceover the carrier roller, J, to the beam, K. The comb, H,is so constructed that it will expand or contract by theturning of the screw, H, of which there are two, one ateach end. These are furnished with a hand wheel, asshewn. The purpose of this expansion is to evenly spreadthe yarn over the beam between the flanges to preventits forming ridges and hollows which strain the yarn, orcause it to run slack in being drawn off in the sizing pro-cess, and both of which would produce undesirableresults. The mechanism may now be briefly described. Extend-ing across the front of the machine is the footboard, , when starting the machine, is pressed down by thefoot of the attendant, and at a certain position is held bya spring handle entering a detent upon the frame. Thedriving shaft, M, has fixed upon it a friction plate, thereto is the pulley, p, which is loose upon theshaft. Beyond this is the loose inclined collar, K, which „ J3JP E iihiiii B. 280 COTTON WEAVING. is set against the corresponding incline, e, made fast uponthe shaft. The inclined collar, E, and the footboard, L,are connected by the lever, S, which is fast npon the loosecollar, E. When the two inclined collars are in the posi-tion shown in the figure, the pulley, p, runs loose uponthe shaft and the machine is stopped. When the machineis started the loose inclined collar makes a partial turn,so as to close up the hole shown near the letter E, and indoing so it also slides laterally upon the shaft pressingthe pulley, p, against the friction plate, N, which beingfixed, becomes the driver and starts the machine. Thewood cylinder, t, being fast upon the driving shaft withthe beam, E, resting upon it, drives the latter by frictionalcontact. We now come to the automatic stopping drop wires or pins hanging upon the threads on thebreakage of any of them, or the exhaustion of a bobbin,the wire b
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisheretcet, bookyear1895
