The art of weaving, by hand and by power, with an introductory account of its rise and progress in ancient and modern times . pieces of iron or wood, fastenedto short posts or studs in the frame, projecting out horizontally, oneunderneath each treadle, forming rests and slides for the treadles toplay upon. Each treadle has an iron shoe fastened to its front edge,of a triangular form, on which the cam acts to give the treadles mo-tion. To the end of each of the upper treadles are attached twocords, one of which passes over one pulley, and the other over ano-ther pulley, suspended between two he
The art of weaving, by hand and by power, with an introductory account of its rise and progress in ancient and modern times . pieces of iron or wood, fastenedto short posts or studs in the frame, projecting out horizontally, oneunderneath each treadle, forming rests and slides for the treadles toplay upon. Each treadle has an iron shoe fastened to its front edge,of a triangular form, on which the cam acts to give the treadles mo-tion. To the end of each of the upper treadles are attached twocords, one of which passes over one pulley, and the other over ano-ther pulley, suspended between two headle rails at the top of theloom, and passing down, are fastened to the headles, one neareach end. To the end of each of the under treadles, is attached one cord,which passes under a pulley in the lower part of the loom, andcoming up, is fastened to the under side of the same headle in thecentre. These cords hold the headle firm that it cannot move upor down, till moved by the treadle; and when one part of the headlesis raised, the others are held down, so that the warp opens to let the 376 THE ART OF WEAVING. Fig. shuttle pass freely. The cams by which the treadles are workedare placed near the top and bottom of an upright shaft, so as tomatch with the shoes of the treadles, and are so arranged that whenan upper cam strikes the shoe of one of the treadles to raise aheadle, the corresponding treadle in the lower set attached to thesame headle, gives way to the motion, by its shoe being drawn intoan appropriate space in the cylinder cam; and when the upper camhas passed the shoe of the treadle, the treadle is drawn back to itsplace again, by the shoe of the under treadle being thrown out ofits space, and pulling upon the headle cord. By these alternatemovements of the treadles, by the aid of an additional cam, the ac-tion is made free and easy, and the headles kept closely confined totheir places, and made to open wider and more clear, that the shut-tle may pass without da
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectweaving, bookyear1844
