The History and Principles of Weaving; By Hand and by Power

The History and Principles of Weaving; By Hand and by Power

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1878 edition. Excerpt: ...the headles are required to be raised at various heights from front to back--the front one being raised to a less height than the back one; and to adjust them accordingly. The end levers attached to the rocking shafts are provided with notches for the purpose of fixing the connecting rods to the treadles at proper distances, as shown in Fig. 266. The number of changes that can be made by means of tappets, as above described, is evidently very limited, but to increase the number various methods have been adopted for fixing tappets on endless bands passing over pulleys and allowing each row to strike or press against the levers as they revolve. Chains, bands, and tappets for this purpose have been applied in various ways, but they have been superseded by small machines, or shedding motions, as hereafter described. The connexions between the levers against which the tappets strike, and the headles, may be made in various ways, either by levers, cords and pulleys, or rocking shafts. CHAPTER XXIII. Warp And Cloth Beam Motions Elastic Loom Schoenherr's TakeUp--Common Let-off Motion Goulliond's--Schoenherr's Bel Leard's--Hall's--Lord's. In power loom weaving it is absolutely necessary that the cloth should be taken-up or wound upon the cloth beam with perfect regularity, otherwise the texture of the cloth would be irregular. To accomplish this some means must be adopted to equalize the rate, or speed, of the take-up, for if the cloth were simply wound as upon an ordinary cloth beam it would increase the speed of the takeup as the cloth increased the diameter of the beam. In this case the number of shoots per inch of cloth would continually decrease and a marked difference in the quality of the cloth would be observed on comparing the extreme ends of more

Product details

  • Paperback | 152 pages
  • 189 x 246 x 8mm | 286g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236608542
  • 9781236608543