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 294
causedby slipping, they have not beenextensively used. The followingform, from Churchs Mechanicsof Materials, is probably as suc-cessful as any that has been de-vised. It consists of a verticalplate, carrying four pulleys and ascale-pan, as shown in Fig. 138.The scale-beam is balanced, thebelt then… … Fig. 138.—A Belt-dynamometer. Gb = Pa-Pa, (1) since .Pand Pf on the right have no leverage about C9 as theline of the belts produced intersects C. From (1) a (2) The work transmitted in foot-pounds per minute is equalto (P — P)v, in which v is the velocity of the belt in feet perminute to be…
Building materials · Machinery
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