Cyclopedia of textile work : a general reference library on cotton, woolen and worsted yarn manufacture, weaving, designing, chemistry and dyeing, finishing, knitting, and allied subjects (1911)
American School (Lansing, Ill.) · Chicago : American school of correspondence · leaf 255
the middle andfront rolls what is termed a porcupine roll is placed. There are anumber of brass rings, through which steel pins are inserted, fixedon the porcupine roll, hence its name. The sliver passing from theback and middle rolls to the front roll passes between these pins,which serve the same… … Fig. 139. First and Second Freneli Drawing Frames. than the nip of the rolls. The reason for this is to support the sliversand to ensure a thorough combing. The greatest care is needed in setting these machines, to be surethat the porcupine rollers are placed in their correct position or…
Textile fabrics · Textile industry
Internet Archive · UMass Dartmouth, Claire T. Carney Library · Public Domain Mark 1.0. Free to use for anything.
