Experimental engineering and manual for testing (1903)
Carpenter, Rolla C. (Rolla Clinton), 1852-1919 · New York, J. Wiley & sons; [etc., etc.] · leaf 307
ressure equivalent to the barometer-reading to give absolute pressure. Themanometers in common use are glass ormetal tubes, either U-shape in form as inFig. 118, or straight and connected to acistern of large cross-section as shown inFig. 120. Pressures below the atmosphere canbe measured equally… … Fig. 118.—U-SHAPED Ma-nometer-tubes. 318 EXPERIMENTAL ENGINEERING. [§269. water or mercury is poured in both branches of the tube, thepressure is applied to the top of one of the tubes,and the Hquid rises a corresponding distance in theother. When no pressure is appHed, the liquid willstand at the…
Building materials · Machinery
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