The Gas Consumers Guide a Hand book of Instruction On the Proper Management a
The Gas Consumers Guide a Hand book of Instruction On the Proper Management a
John Townsend
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Supply would be the result and this is~ precisely what occurs with the wet gas-meter. The annexed figure (12) is a section of the instrument when in operation ; a a a a is the outer case, filled with water a short distance above the centre, as shown by the dotted lines ; in this is a cylindrical vessel, b b b Z>, called the " drum, " which revolves freely on its axle a. This vessel is divided by the partitions p p p p into four distinct measuring chambers, 1, 2, 3, and 4, and by a very in- geni...ous contrivance the pipes alluded to in former illus- trations are dispensed with the passages for the ingress and egress of the gas being attached to each respective chamber, which passages are opened and closed in suc- cession as desired, through the intervention of the water and the revolving motion of the drum. The gas, in the act of being measured, enters the cham- bers alternately ; that marked 1, as seen, has just received its supply, and is full, when both its inlet and outlet are THE GAS-METER.
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