Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . op of the chamber. Aseries of weights, one above the other, was also sus-pended from the top of the chamber, wliich weresuccessively raised as the pressure of the liiiuid in-creased. An arm conneited with the bottom of the LIQUID-METER. 1327 LIQlIU-METER. cup operated a valve, which gi-adually closed theilischaige orifice as the weights were lifted. William Brun
Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . op of the chamber. Aseries of weights, one above the other, was also sus-pended from the top of the chamber, wliich weresuccessively raised as the pressure of the liiiuid in-creased. An arm conneited with the bottom of the LIQUID-METER. 1327 LIQlIU-METER. cup operated a valve, which gi-adually closed theilischaige orifice as the weights were lifted. William Brunton, near the same time, invented ameter in which the reciprocating motion of a pistonin a cylinder was caused to measure the amount ofwater discharged, the valve aiTangements, etc., beingjiimilar to those of the steam-engine. The forms of meter are various, the principal be-ing known as the diaphragm, the balanced, in whichilompiTssed air is employed, the piston, the propeller,and the flaribte tube and roller meter. The spirit-meter of Siemens and Halske is shownin Fig. 2970 (.4). This instrument is designed toregister the (piantity of spirit , and also theamount of absolute alcohol contained therein. The Fig.
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