Hummel, J. J. (John James), -1902 · London : Cassell & Company · leaf 72
t angles to this, by the revolution of the vertical spindle of the elbow. This last movement is caused as follows : Each spindle is supported by a collar on a box u, enclosing a cog-wheel, which is revolved by a ratchet ; this is actuated by the backward and forward movement of the horizontal arm d… … Fig. 20.— Details of Silk- Stringing Machine. the weights c, which can either be raised separately by the jointed levers m pressing against the pulley v, or all together by means of the handle R. When this handle is turned, the cog-wheels s cause the pulley p to revolve, the counterpoise o…
Dyes and dyeing
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