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 . hidilen in a tassel with the other pole ; whenthe wire is brought near to the burnei, a spark leapsacross the interval and lights the gas. Clock-work has also been employed to turn onand light gas at a set time ; and also to turn oil thegas at a picarranged time. Gas-iUctin. A principal gas-pipe leading fromthe works, and having branches and distributingpipes. S
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 . hidilen in a tassel with the other pole ; whenthe wire is brought near to the burnei, a spark leapsacross the interval and lights the gas. Clock-work has also been employed to turn onand light gas at a set time ; and also to turn oil thegas at a picarranged time. Gas-iUctin. A principal gas-pipe leading fromthe works, and having branches and distributingpipes. See also hydrauUc main, invented hy Clegg in18(i7, ami forming a part of the gas-producing works. Gcis-meter. A device for measuring the quan-tity of volume of passing gas. Citizen Seguin, of the National Institute ofFrance, described a gas-meter at the sitting of theInstitute, October 6, 1797. The wet-meter was invented hy Clegg in 1807,and imjirovcd by Crosley in 1815. The dry-meterwas invented by Malam in 1820, and imjuoved hyDefries in 1838. Many improvements and variationshave been added since hy various ]iarties. A (Fig. 2183) is a longitudinal and B a of the wet-meter, which is composed of an Fig. Wtt-Meter. outer box n partially filled witli licinid, as water,alcohol, or glycerine, to the level of the line b c,somewhat above its center. Within this is jourualedan axis carrying a .seiies of buckets d d d d, eachcapable of containing a definite quantity of gas,which is admittcil through the pipe e at the centraljiart of the meter, anil causes the buckets succes-sively to rise, maintaining a cimtiinious gas passes out through a jiipe / at the ujiperin each burner, and this coil becomes heated by its part of the meter, its quantity being measured liy aresistance to the passing current, and so ignites the i series of nntltiplying gear-wheels ; these derive their Gas-Cock EUctro-MttoT. GASOLIXE. 953 GAS-PURIFIER. motion from the axis on w
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