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 72
Fig. 13.—The Coffin Averaging Instrument. and the differential equation of the register becomes dR — ndd s2) Hence, as in equation (7), A = IR (13) §32-] APPARA TUS. 43 That is, the area is equal to the space registered by the record-wheel multiplied by the length of the planimeter arm. This… … Fig. 14.—Coffin Averaging Instrument. one edge is in line with the guide for the arm; starting at thefarthest portion of the diagram, run the tracing-point aroundin the usual manner to the point of starting, after which runthe tracing-point perpendicular to the base along a specialguide provided…
Building materials · Machinery
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