Ludy, Llewellyn V., 1875- [from old catalog], American Technical Society · Chicago, American technical society · leaf 20
, with outsidespring, reducing motion, and electrical attachment, is similar inconstruction, operation, and essential characteristics to the Crosbyand other indicators, though there are details of design for which therespective makers claim advantage over other makes. One feature STEAM ENGINE… … Fig. 5. Tabor Indicator with Outside Spring to the pencil a straight-line motion parallel with that of the piston,with possible slight errors, especially on high cards. As shown inFig. 6, the scheme for obtaining the parallelor straight-line movement of the Tabor indi-cator is different from that…
Indicators for steam-engines · Steam-engines
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