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 604
FlG. 275.— ICHAEFFER AND BUDEXBERG HAND TACHOMETER. vat£s mercury in the revolving arms and depresses it in thecentre tube. A calibrated scale gives the number of revolu-tions corresponding to a given depression. 415. The Chronograph.—The chronograph,* Fig. 276, con-sists of a drum revolved by… … Fig. 276. definite number of revolutions per minute. A carriage hav-ing one or two pens, h, g, as may be required is moved parallel * See Thurstons Engine and Boiler Trials, page 226. 574 EXPERIMENTAL ENGINEERING. [§4*5. to the axis of the cylinder by a screw which is connected withthe…
Building materials · Machinery
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