Tappet and dobby looms : their mechanism and management (1912)
Roberts, Thomas · Manchester [Greater Manchester] : Emmott & Co., Ltd. · leaf 100
, the lock-knife may be leaving the tongues of thevibrator levers before the vibrators are completelyturned. The result of this would be that the vibrators JACK-MISSINGS AND THEIR CAUSES 89 would slip out of gear with the cylinders, and allow theheald shafts to spring back towards the centre of… … Fig. 27. are that the lag cylinder is out of tune as regards eithertime or position, and worn and defective parts. It is acommon practice when weavers are dropping the healdsin order to check the warping plan to use a weft bobbinto push the vibrators over; frequently the bobbins split,leaving a…
Looms
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