Ludy, Llewellyn V., 1875- [from old catalog], American Technical Society · Chicago, American technical society · leaf 16
and downward. The upper part of the hubis threaded inside to receive piston rod 10. The upper edge ofthis hub is so formed that it fits nicely into a circular groove inthe bottom side of the nut of the piston rod. The hub also has aslot cut diametrically across it, which permits the flat portion… … Fig. 1. Original WattIndicator 4 STEAM ENGINE INDICATORS the circular groove in the bottom of the shoulder of the pistonrod. If this connection is correctly made, a perfect alignment ofthe piston is assured. The swivel head 11 is threaded at the bottom, so that it can bescrewed into the piston rod.…
Indicators for steam-engines · Steam-engines
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