File: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) (14596017218).jpg

Identifier: cyclopediaoftext05amer (find matches)
Title: 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
Year: 1911 (1910s)
Authors: American School (Lansing, Ill.)
Subjects: Textile fabrics Textile industry
Publisher: Chicago : American school of correspondence
Contributing Library: Claire T. Carney Library, University of Massachusetts Dartmouth
Digitizing Sponsor: Boston Library Consortium Member Libraries

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pivoted on thecam shaft, and the lower end c is counterweighted so as to bringthe guide against the surface of the cone, while it is being wound witha slight pressure. This pressure can be varied for different classesof material by shifting the bent arm of the lever / in the holes g.The greatest pressure is obtained by placing the bent end of the armin the lowest hole. For soft hosiery yarn, it is desirable to use thetop hole, this giving the lightest pressure. Connected with the i id /is the lever e and a movable weight j on the lever. To increase thepressure of the guide against the cone, move the weight j toward theouter end of the lever. The softer and finer the yarn, the less pressureis required, and for knitting yarn, the pressure should be reducedto the least quantity. Adjusting the Tension. The tension upon the yarn is regu-lated in two ways: The yarn passing between the series of bladesd-d, is deflected from a straight line by a slight pressure of the blades. 107 94 KNITTING
Text Appearing After Image:
Fig. 38. Univeisal Differential Tension Mechanism. KNITTING 95 and sufEcient tension placed upon it to keep it in line for uniformdelivery to the cone. On the lever h, which is connected to themovable tension blade d by means of the link i, is a weight k, whichcan be shifted to increase or diminish the pressure of the bladesagainst, the yarn. With the weight at its lowest position on the lever,there is a very light pressure of the blades against the yarn, on itspassage from the supply cop, or bobbin, to the winding spindle.When it is desirable to break out soft spots in the yarn, the tensionshould be increased. The Effect. When the machine is first started in operation withthe paper cone bare, the frame c is in the position shown by the dottedlines, and the tension arms h, and e lie in nearly a horizontal position,thus giving the greatest pressure and tension at this point. As thecone increases in size, the guide is pushed back gradually, finallyreaching the position shown in the sket

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