Experimental engineering and manual for testing (1903)
Carpenter, Rolla C. (Rolla Clinton), 1852-1919 · New York, J. Wiley & sons; [etc., etc.] · leaf 268
acy. 278 EXPERIMENTAL ENGINEERING. [§ 233. 233. Anemometers.—Instruments that are used to measurethe velocity of gases directly are termed anemometers. Theyconsist of fiat or hemispherical vanes mounted like arms of alight wheel so as to revolve easily. The motion of the wheelactuates a recording… … Fig. 108.—Birams Portable Anemometer. dial arranged in the centre as shown, or on top of the case invarious positions, is much used as a portable instrument. The dial mechanism of the anemometer can be started orstopped by a trip arranged convenient to the operator ; in someinstances the dial…
Building materials · Machinery
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