Tappet And Dobby Looms Their Mechanism And Management
Tappet And Dobby Looms Their Mechanism And Management
Thomas Roberts
The book Tappet And Dobby Looms Their Mechanism And Management was written by author Thomas Roberts Here you can read free online of Tappet And Dobby Looms Their Mechanism And Management book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Tappet And Dobby Looms Their Mechanism And Management a good or bad book?
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Perfect Slope of Shed. — To obtain a perfectly sloping shed it is evident that the further the healds are from the fell of the cloth their stroke must be increased in proportion to their position. The threads which are drawn on the back shafts will be subjected to consider- ably more tension, as they are lifted and depressed more out of the warp line than those drawn on the front shafts. The material might sustain the tension applied by the front shafts, but would be altogether inadequate for t...he tension applied by the back shafts. It is on this account occasionally advisable to resort to drafting the gear when possible — taking, for example, a warp backed, or a double, cloth, in which one set of the warp threads is made from a different material, as worsted for the face and cotton for the back of the fabric, or they may be made of the same materials but different qualities. The set of threads least capable of resisting the tension should be drawn into the front healds, if the structure of .
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