. The principles and processes of cotton yarn manufacture. e lap feed, and the speed of the feed roll, are theimportant factors. If the distance between the plate and the licker-in 64 COTTON YARN MANUFACTURE teeth is between twelve and fifteen-thousandths of an inch, good resultscan generally be gotten. The exact setting must be obtained by experi-ment, in which the factors mentioned above play a very important part. Itis of the greatest importance that, whatever the setting decided upon maybe, the two parts in question be the same distance from each other through-out the whole width of the ma
. The principles and processes of cotton yarn manufacture. e lap feed, and the speed of the feed roll, are theimportant factors. If the distance between the plate and the licker-in 64 COTTON YARN MANUFACTURE teeth is between twelve and fifteen-thousandths of an inch, good resultscan generally be gotten. The exact setting must be obtained by experi-ment, in which the factors mentioned above play a very important part. Itis of the greatest importance that, whatever the setting decided upon maybe, the two parts in question be the same distance from each other through-out the whole width of the machine. The parts are made adjustable atboth sides of the machine, and by means of thin steel strips or gauges,made of definite thicknesses, any desired distance between them can beobtained. The thin gauge, a view of which is shown in Fig. 41, ofthe required thickness is slipped between the two parts to be adjustedand must fit with the same degree of tightness at every point, before theparts are fastened in place. _„ INDIAN. Fig. 43. Fig. 44. Fig. 45. S. AMLRICAN. EGYPTIAN. The setting screws for the feed plate are shown in Fig. 38, at H,and more clearly in Fig. 42, to which reference may be made. H isthe feed plate bolted to the frame of the card by the bolt /^^ which passesthrough a slot in H and one in the casting G, which is intregal with thelap-stands I. G is bolted to the feed plate at h^. Attached to the rearend of the feed plate is a screw having threaded upon it the two nutsh and /^^. By loosening h and tightening A^ the feed plate may bepushed forward towards the licker-in, while an opposite turning of thetwo nuts will, of course, pull it away from the licker-in. It is importantto make the turning of the nuts very slight, and to tighten one exactlyas much as the other is loosened. CARDING 65 The shape of the forward part and nose of feed plates has been thecause of much discussion and experiment. The angle of inclination tothe horizontal varies on different makes of
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