A practical treatise on the construction of the power-loom and the art of weaving : all descriptions of texture produced by leaves of heddles : illustrated with diagrams, with calculations and instructions for the production of cotton, woollen, linen, and jute fabrics : intended as a textbook for those engaged in the trade (1887)
Brown, Alex (Alexander) · Dundee : James P. Mathew & Co. ; London : Simpkin, Marshall, & Co. · leaf 53
HE PICK. represented by the friction roller on the stud) being cir- cular. The direction of the force thus transmitted will be at right angles to a line drawn tangent to the circum- ference of the friction roller at the point of its contact ♦ with the wiper, as shown at A, fig. 7 — the line A ex-… … \ line A (fig. 7) makes with the axis of the upright shaft or fulcrum, on which the lever moves. The best angle, of course, is right angles, but it is not so easy to transmit the force in that line and at the same time maintain its magnitude. The nearer this can be approached, however, the smoother…
Looms · Weaving
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
