Experimental engineering and manual for testing (1903)
Carpenter, Rolla C. (Rolla Clinton), 1852-1919 · New York, J. Wiley & sons; [etc., etc.] · leaf 479
by Mr. L. F. Lyne. Its principal peculiarity is theguide near the paper drum for securing the parallel motion. The Perfection indicator, shown in Fig. 183, differs fromthose described in the form of the spring and in the arrange-ment of the levers for the parallel motion. This instrument ismade… … FiG. 182.—The Straight Lyne Indicator. Fig. 183.—The Perfection Indicator. cally from the indicators described in the form of springs em-ployed ; the indicator-spring is flat and arranged with a
Building materials · Machinery
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