Mechanical movements, powers, devices and appliances; (1903)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N.W. Henley & co. · leaf 66
ted in cubic feet of airpassed per minute. 171/. ANEMOMETER formeasuring the velocity of the wind.The dial indexes are geared bytenths, as i, 10, 100, 1,000 miles,which by differentiating the timegives the velocity of the wind inmiles per hour. The ratio of thewind velocity to the center of thecup… … 172. STEVENS BOILER.— An early type of tubular boilers(1806). The principle is still in use- ><<Y:,^<^//^-^yyy>/y^^y/yyyyyyyy^y^yy^^yy^^y^y.>^yyyyy^y^yyyy.^^, 173. PLAIN CYLIN-DRICALBOILERS, showing^ suspension and setting. One-half the surface of the shells, divided by 10,equals…
Mechanical movements
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