American School of Correspondence · Chicago, American school of correspondence · leaf 330
(Fig. 212), the exact lengthof the traverse can be determined. The length of taper, for the top or bottom of the bobbin, canbe varied by raising or lowering the fulcrum, Q, of the builder arm.This may be understood by reference to Fig. 216. The builder isset for the same length of taper for both… … Fig. 214. Filliug Bobbin. 293 252 COTTON SPINNING fulcrum of the builder arm is at Q; the throw of the cam is shown bythe distance between the center of the cam rolls, A and B. When the rail is traversing its greatest distance and the rack iswound out, the hook is at G and the length of the…
Textile industry and fabrics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
