Experimental engineering and manual for testing. For engineers and for students in engineering laboratories (1906)
Carpenter, Rolla C. (Rolla Clinton), 1852-1919 · New York, J. Wiley & Sons; [etc., etc.] · leaf 548
a pencil, whichwas made to press against a sheet ofpaper DD, moved backward and forwardin conformity to the motion of the piston.By this method a diagram was producedsimilar to that shown in Fig. 227. McNaughts indicator, which succeededthat of Watt and was in general use untilabout i860, differed… … Fig. 227.—The WattIndicator. See Thurstons Engine and Boiler Trials, page 130. 5i8 EXPERIMENTAL ENGINEERING. [§38i. 381. The Richards Indicator.*—The Richards indicatorwas invented by Professor C. B. Richards about i860; it con-tains every essential constructive feature found in recent indi-cators,…
Building materials · Machinery
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