Ludy, Llewellyn V., 1875- [from old catalog], American Technical Society · Chicago, American technical society · leaf 94
er, whatis the b.h.p. when the engine makes 350 revolutions per minute? 28 5R = 28 + § = 28\ inches = —^ feet Then from the equation for brake horsepower, we haveb.h.p = .0001904 R N (W-B) 28 5= .0001904X— a <2 X350 i — = 11.4 If both the indicated horsepower and the brake horsepower areknown,… … Fig. 67. Modern Band Form of Prony Brake When it is desired to make repeated tests of an engine for a consider-able period of time, or when it is desired to keep the machine in readi-ness for tests at all times, as in experimental engineering labora-tories, it is better to provide a brake of the…
Indicators for steam-engines · Steam-engines
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