. A practical treatise on gas-light : exhibiting a summary description of the apparatus and machinery best calculated for illuminating streets, houses, and manufactories, with carburetted hydrogen, or coal-gas : with remarks on the utility, safety, and general nature of this new branch of civil economy . from that quarter; because the A TREATISE ON GAS-LIGHT. 157 gas which passes through the whole range ofpipes sustains a pressure equal to the perpen-dicular weight of about one inch of water only,and such a weight of course is insufficient toburst iron pipes. Nor could the town whenilluminated
. A practical treatise on gas-light : exhibiting a summary description of the apparatus and machinery best calculated for illuminating streets, houses, and manufactories, with carburetted hydrogen, or coal-gas : with remarks on the utility, safety, and general nature of this new branch of civil economy . from that quarter; because the A TREATISE ON GAS-LIGHT. 157 gas which passes through the whole range ofpipes sustains a pressure equal to the perpen-dicular weight of about one inch of water only,and such a weight of course is insufficient toburst iron pipes. Nor could the town whenilluminated by gas-lights, be thrown suddenlyinto darkness, as has been asserted might hap-pen by the fracture of a main pipe, supposingsuch an event should take place ; because thelateral branches, which supply the street-lampsand houses, are supplied by more than onemain; and the consequence of a fracturewould be only an extinction of the few lampsin the immediate vicinity of the broken pipe,because the rest of the pipes, situated beyondthe fracture, would continue to be suppliedwith gas from the other mains, as will becomeobvious from the sketch exhibited in the next peg* 15S A TREATISE ON GAS-LIGHT. Main pipe, leading from the fJas-li^ht station, or aapparatus, situated in Brick-Lane, near Old St. «| *. Mam pipe, loading from the Gas-light apparatus, ka*or station, in Wcstmmstcr. <=• * The at this place is equal i* capacity to 22000 cubic feet. f The capacity ofthe gasometer here is equal to 15928 cubic feet. Z Jfc this station the aasometcr is eipual M capacity to 14808 cubic feet. The black lines represent the gas-lightmains, or largest pipes, from which the smallerpipes branch off: they are connected witheach other at the places marked ABC; andthe dotted lines represent the smaller mains,or collateral branches before-mentioned. Themain pipes are all furnished with valves, orcocks, placed at a about loo feet distant fromeach other. Now let us suppose that a mainpipe
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Keywords: ., bookcentury1800, bookdecade1810, bookidpracti, booksubjectcandles
