Weaving; a practical guide to the mechanical construction, operation, and care of weaving machinery, and all details of the mechanical processes involved in weaving . As the cam revolves itraises the lower end of the elbow lever, thus throwmg back thehammer, and as the lay swings forward at the same time, the forkenters the grate as shown at K, allowing the hook of the fork torest behind the hammer which catches as it moves back, drawingthe slide with it, and through the shipper lever releasmg the shipper 165 152 WEAVING handle, thus stopping the loom. When there is filling across theface of t
Weaving; a practical guide to the mechanical construction, operation, and care of weaving machinery, and all details of the mechanical processes involved in weaving . As the cam revolves itraises the lower end of the elbow lever, thus throwmg back thehammer, and as the lay swings forward at the same time, the forkenters the grate as shown at K, allowing the hook of the fork torest behind the hammer which catches as it moves back, drawingthe slide with it, and through the shipper lever releasmg the shipper 165 152 WEAVING handle, thus stopping the loom. When there is filling across theface of the grate the fork is prevented from passing through thegrate, being tipped up instead as shown at L, thus lifting the hookout of the way of the hammer and preventmg any action from tak-ing place. Consequentlyas long as the filling is across the gratethe loom contmues to run. There are two distinct forms in whichthe prongs of the fork may be bent as shown at M and N. Some-times an intermediate form is adopted and in extreme cases theprongs extend further than at N ; but for ordinary work this wouldbe defective fixing. The form shown at M is by far the best for. Fig. 102. Filling Stop Motion. any kind of work. In settmg the stop motion several facts mustbe considered as governing its most efficient action. As straintends to weaken the fillmg the fork should be set so as not tocause excessive strain. The less movement required for the fork,the better. Correct tmimg is absolutely essential. The prongs of the fork should be long enough to reach belo\A 166 WEAVING 153 the level of the race-plate, which is grooved at the required tliey are not sufficiently long there is a tendency for the fillingto slip under them, thus allowing the hook to catch and the loomto be stopped. Also as the lay swings back the filling which waspressed partially through the grate, becomes slack and often curlsaround the prongs if they are too short. This sometimes causesthe loom to stop, but more of
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishe, booksubjectweaving
