. The principles and processes of cotton yarn manufacture. ne side of the preceding one. There ishence offered to the lap, as it is fed, an unbroken line of points, so thatthe probability of striking all parts of the lap equally is almost saw teeth pass through the end of the lap, and after exerting acombing action detach the fibres that have been released from the grip of 54 COTTON YARN MANUFACTURE the feed roll. The fibres are held by the licker-in in all sorts of positions,but never in large lumps. Since the number of teeth passing the feedplate while an inch of lap is being fed
. The principles and processes of cotton yarn manufacture. ne side of the preceding one. There ishence offered to the lap, as it is fed, an unbroken line of points, so thatthe probability of striking all parts of the lap equally is almost saw teeth pass through the end of the lap, and after exerting acombing action detach the fibres that have been released from the grip of 54 COTTON YARN MANUFACTURE the feed roll. The fibres are held by the licker-in in all sorts of positions,but never in large lumps. Since the number of teeth passing the feedplate while an inch of lap is being fed is many hundred thousand, andsince the fibres are scarcely more numerous, and are detached, notsingly, but in groups of a few clinging together, it follows that many ofthe teeth on the licker-in will be bare. It never requires cleaning. The fibres which .are detached from the lap by the licker-in teeth arecarried around beneath it. Placed near the surface of the licker-in, a shortdistance from the point where the cotton is detached from the lap, are two. Fig. :si transverse peculiarly shaped bars, sharp on the top edge, known as moteknives. The shape and position of these knives are shown at B^ and B^in Fig. 34. Their duty is to aid in the removal of the heavier im-purities which still remain in the lap. Motes, dirt, pieces of leaf, whichdo not cling tightly to the fibre or the licker-in teeth, are by the centrif-ugal force of the licker-in thrown away from its surface. As they strikethe sharp edge of the mote knives, they are deflected and fall down throughthe spaces to the floor. As the space between the edges of the knives andthe licker-in teeth is very small, leaf, broken seed, etc., which do cling to CARDING 55 the fibre, being longer than the space, are scraped off by the knives, andfall between them. It is at this point, therefore, that the majority of theheavy impurities in the lap are removed. Some long fibres loosely heldare thrown through the interstices, but their
Size: 1828px × 1368px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorwinchest, bookcentury1900, bookdecade1900, bookyear1902
