Tappet and dobby looms : their mechanism and management (1912)
Roberts, Thomas · Manchester [Greater Manchester] : Emmott & Co., Ltd. · leaf 106
draw hooks keep in contact with the re-taining bars G and G^. This prevents the heald shaftfrom being lifted from the level of the bottom shed lineby the tension of the warp threads. Motion is imparted DRIVING OF LEVER DOBBY 95 to the lifting knives and lowering bars from the arms L^and U of the… … This wheel is in turn driven by the wheel Q fixed to thebottom shaft of the loom. With the object of allowingmore time for the passage of the shuttle, a dwell is givento the dobby when the crankshaft is turning about theback centre. This is accomplished by making the wheelsM and Q slightly…
Looms
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