Hood, Grant · Kansas City, Mo. : Kansas City Jeweler and Optician · leaf 248
Fig. 23.240 WHY SOME WORKMEN FAIL TO SUCCEED. A point that is often overlooked is the wear occasionedby the teeth of the fourth wheel acting against the leaves ofthe escape pinion, in some cases nearly one-half of the thick-ness of the leaves is worn away. This changes the depthbetween the two and… … Fig. 24. able to open the case, it is liable to start up and may run forhours before it will stop again. In some cases the fourthwheel can be either raised or lowered, so the teeth will actupon a part of the pinion that has not been worn and will per-form as well as ever. If this can not be done,…
Clocks and watches
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