Weaving; a practical guide to the mechanical construction, operation, and care of weaving machinery, and all details of the mechanical processes involved in weaving (1909)
American School of Correspondence, Nelson, H. William (Hector William), b. 1869 · Chicago, American School of Correspondence · leaf 187
h the fork fixed inits correct position, swing forward the lay, and as it is just leavingthe front center set the cam to move the elbow lever with the catchof the lever just passing the fork. If at this tune the hook of thefork barely clears the hammer, the timing will almost invariablybe correct… … Fig. 103. Protection Device,Frog: Motion. THE PROTECTION DEVICE. The protection device is to protect the warp from being brokenout should the loom stop or bang off with the shuttle in the shed.There are two distinct forms of protection devices; first the frogmotion, which is almost invariably used…
Weaving
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