Weaving; a practical guide to the mechanical construction, operation, and care of weaving machinery, and all details of the mechanical processes involved in weaving . and carries,fixed on a stud, H, at the elbow, a spring clamp which also grips astud fixed in the upper part of the lower lever, D, at J. As thecams revolve, the large one coming in contact with the upper elbowlever, raises it, and by the combined action of the spring clampand the spring, K, the lower elbow lever is also actuated. Aslotted bar, M, is supported by a bracket fixed to the loom side,and the slide, L, works in the plot
Weaving; a practical guide to the mechanical construction, operation, and care of weaving machinery, and all details of the mechanical processes involved in weaving . and carries,fixed on a stud, H, at the elbow, a spring clamp which also grips astud fixed in the upper part of the lower lever, D, at J. As thecams revolve, the large one coming in contact with the upper elbowlever, raises it, and by the combined action of the spring clampand the spring, K, the lower elbow lever is also actuated. Aslotted bar, M, is supported by a bracket fixed to the loom side,and the slide, L, works in the plot o| this bar when the motion is 192 WEAVING 179 in operation. When the filling breaks, the fork-slide draws backand lifts a finger which is also in contact with the slotted bar, M,thns raising the slotted bar so that as the slide is driven forwardthe catch comes in contact with the bottom of the slot, with theresult that further forward movement is prevented, and the studon the lever, D, at J, is forced out of connection with the spring,clamp. This stud being out of connection, the connectingrod cannot be lifted sufficiently high to cause the pawl to turn the. Fig. 116. Disconnectiug Device. ratchet gear on the filling chain barrel, and all operation of the boxmotion ceases. While the elbow levers are disconnected, thetension spring, K, is extended, and it will draw the upper elbowlever back into position when allowed to contract; this is calledthe grasshopper motion. The Lower Box Motion. This motion, which is illustratedin Fig. 117, is kno^vn as the pin gear motion, deriving its namefrom the manner of driving the large segment or space gear, B, 193 180 WEAVING The pin gear, also termed the dog, is attached to the end of thepick cam shaft, and as the shaft revolves, the pin, A, enters one ofthe recesses in the segment gear, B, advancmg the gear one spacefor each revolution. There are ten spaces on the inside separatedby recesses, and on the outside the gear is divided into ten
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishe, booksubjectweaving
