Draw frames and fly frames : being a practical treatise on the above machines (1898)
Thornley, T. (Thomas) · Manchester : A. Heywood · leaf 151
lcrum. B is the left-hand detent lever, and C isthe right-hand detent lever. Now, it is seen that twocircles have been described from the fulcrum A, taking asa radius the acting points of the adjusting screws. Theimportant point now to be noticed is that the circledescribed by the long or low screw… … Fig. 34.
Textile machinery
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