Ludy, Llewellyn V., 1875- [from old catalog], American Technical Society · Chicago, American technical society · leaf 37
to anymoving part that has an exact similar motion, and must be con-nected in line from the pulley. Enclosed in the spring case E is a small, plain, spiral steel springwhich operates solely to return the pulley to its starting point, afterit has been revolved in one direction by the forward… … Fig. 29. Tabor Reducing Wheel STEAM ENGINE INDICATORS 25 The paper drum is rotated forward by means of the pulley throughits worm shaft, engaging with the worm gear on the paper drumcarriage, and is rotated in the opposite direction by the action of itsown retracting spring. On top of the paper…
Indicators for steam-engines · Steam-engines
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