Society of Glass Technology · [Sheffield] · leaf 484
carrying a head whereby the lens, %, is clamped between thespindle. The spindles are rotated in the same direction and atthe same speed, through gearing 62, 63, 64, 62a, 63a, and thespindle, a, by a shaft, 45, having therein universal joints anddriven, through bevel and chain gearing, by the shaft,… … Fig. 60. pawl, 38, carried by a spring-pressed arm, 37, which is struck ateach angular movement of the carriage to the left, Fig. 61, by anadjustable stop, 39, carried by a bracket, 40a;. The feed is stoppedby an adjustable shroud for the teeth of the ratchet-wheel or byconstructing the wheel so…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
