The wonders of modern mechanism. A résumé of recent progress in mechanical, physical, and engineering science (1896)
Cochrane, Charles Henry, 1856- · Philadelphia J.B. Lippincott · leaf 349
, and turn pointers around on a dial at aneven speed. The simplest mechanism that will do this isthe best. Some form of power must be used, for no ma-chine will do work without power. A spiral spring hasbeen found the most convenient form of motor, and it isgiven power by the daily act of winding… … THEORETICAL WATCH-TRAIN. in a line, for the sake of clearness, instead of crowded to-gether, as in a watch, to save space. In the centre of thelarge wheel (Fig. 80) we see a little square post which thewatch-key grasps when we wind it. Turning this post orarbor tends to wrap the spring around it,…
Inventions · Mechanical engineering · Machinery
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