The fireside university of modern invention, discovery, industry and art for home circle study and entertainment . d back or down. This principle has been appliedto the mechanical musical organs that to-day excite so muchadmiration, and the telegraphers have at last taken advantageof the same idea in the scheme of automatic telegraphic trans-mission that we have described in the chapter, Electricity. What are the main parts of an ordinary, ancient Loom ? i. There must be two rollers—the warp beam, on which thewarp threads are reeled, and the cloth-beam, on which thefinished cloth is received.
The fireside university of modern invention, discovery, industry and art for home circle study and entertainment . d back or down. This principle has been appliedto the mechanical musical organs that to-day excite so muchadmiration, and the telegraphers have at last taken advantageof the same idea in the scheme of automatic telegraphic trans-mission that we have described in the chapter, Electricity. What are the main parts of an ordinary, ancient Loom ? i. There must be two rollers—the warp beam, on which thewarp threads are reeled, and the cloth-beam, on which thefinished cloth is received. 2. There must be two heddles or healds, which we may likento combs, merely to show that the warp threads pass by them,as a comb allows hair to pass by its teeth. Suppose everysecond hair were fastened to a tooth of the comb, and therewere two combs, similarly established, then, if one comb wereraised, a shed would be formed, through which a thread or 24 370 THE FIRESIDE UNIVERSITY. cross-hair could be carried. The heddle is not a comb, becauseit is closed at bottom and top, and its slats or threads each has. Fig. HO. HAND LOOM. a hole or eye for the warp to pass through. A treadle or leverraises or lowers either heddle, and now one may rise while theother sinks or stands still, and vice versa. 3. There must be a reed, a comb—a thing like the heddles,but with a warp between every tooth. Attached to this comb isa way, on which the shuttle, holding and paying out thewoof can slide. After the throw, or pick, or slide has beenmade, and the shuttle has landed on the other side—alwayswith a click—the reed is pulled toward the weaver and the newthread is beaten or battened up against the other woof-threadsthat have been thrown across before. Thus, every cross-threadof every piece of Cloth or carpet represents not only the carefulprocess of making the thread itself (as we have shown in Silk),but as it passed across in the loom, the machine was stoppedwhile the thread was pounded
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