Tappet and dobby looms : their mechanism and management (1912)
Roberts, Thomas · Manchester [Greater Manchester] : Emmott & Co., Ltd. · leaf 226
ar out. Wheneither of the threads or theloop heald breaks the selvageweaves forward unstitched. Doup Heald.—A further method occasionally em-ployed for stitching the selvages on narrow webbingswhen woven in a broad loom is illustrated in Fig. 65.The principle consists in the application of a doup… … PEGGING PLANm o X=L1FTERS P^IG. 65. 216 TAPPET AND DOBBY LOOMS crossing threads D are all put on to a spare beam orlight roller. The crossing thread is first drawn through the healdof the shaft A, then passed through the doup eyeletformed by the heald loop C^ being interlaced with themail or eyelet…
Looms
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