Tappet and dobby looms : their mechanism and management (1912)
Roberts, Thomas · Manchester [Greater Manchester] : Emmott & Co., Ltd. · leaf 63
he other wheel is used for thethree and six pick patterns, the three-pick patterns beingrepeated twice, and the six-pick pattern once in a com-plete revolution of the barrel. The following par-ticulars of the driving bevel wheels and the tappet 52 TAPPET AND DOBBY LOOMS wheel would be adopted:… … Fig. 16. let it be assumed that a weave occupying five picks inthe repeat is required. There are two factors to be con-sidered. First, the barrel must be provided with a seriesof bolt holes 4th of the circumference apart, which, inaddition to those already necessary for the six and eightpick…
Looms
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