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 77
ntity must be the product of a constant derivedfrom the instrument, multiplied by the differential expressionfor the surface. This latter quantity with reference to rectan-gular co-ordinates is ydx. It is readily seen that as the tracing-point moves an amountequal to dx, a point in the… … Fig. 16. Suppose that while the tracing-point moves a distance dx%the disk A moves a distance ab, Fig. 10, since this disk is turnedfoy the mitre-wheel whose pitch-circle is R%, and ad is the dis-tance from record-wheel to the axis of this wheel, we musthave Ra ad (16) §35-] APPARA TUS. 49 Because…
Building materials · Machinery
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