. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. he Commercial Gas Company haveone 206 ft. in diameter. At the Horseferry Eoad station of the Chartered Gas Company, the tankof one gas-holder is 202 ft. diameter by 25 ft. deep. The excavation of this tank is a trench 12 ft. GAS, MANUFACTUEE OF. 685 deep by 5 ft. in width all round; the sides are formed by f in. B B Staffordshire plates, rivetedso as to be watertight, with f-in. rivets; the bottom is secured on the top by 3-16ths sheet iron,underneath which is a layer of bricks and a thick bed of concrete.
. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. he Commercial Gas Company haveone 206 ft. in diameter. At the Horseferry Eoad station of the Chartered Gas Company, the tankof one gas-holder is 202 ft. diameter by 25 ft. deep. The excavation of this tank is a trench 12 ft. GAS, MANUFACTUEE OF. 685 deep by 5 ft. in width all round; the sides are formed by f in. B B Staffordshire plates, rivetedso as to be watertight, with f-in. rivets; the bottom is secured on the top by 3-16ths sheet iron,underneath which is a layer of bricks and a thick bed of concrete. At the Kennington Lane station of the Phoenix Gas Co., London, there is a gas-holder 160 by 70 ft. high, which is peculiar in its construction. Fig. 1379 is a plan of this holderpartly in section, Fig. 1380 a sectional elevation. Contrary to custom, the columns are made of|-in. and J-in. boiler plates, the diameter of each being 3 ft. 3 in. at the base, tapering to 2 ft. 8 the top; the total height of the columns is 73 ft., and each column was erected in one Cast-iron girders round the top of the columns are dispensed with, 2 in. and IJ in. round rodsbeing used instead; and the gas-holder crown, when working, is entirely unsupported by prevent collapse, should the holder come to the ground, a wooden frame upon brick piers wasconstructed inside the tank, and this has proved a perfectly sufficient safeguard. In small works, single lift gas-holders are generally hung with counterbalance weights, and these,when capable of being conveniently shifted, serve to regulate the pressure, and save the construc-tion of a governor; but in larger works, where a governor is employed, the dimensions of the gas-holder are calculated so that a uniform pressure may be given without the aid of a is accomplished on the principle that, the weight of the holder being known, a quantity ofwater equal in weight will be sustained by it, and the dep
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectenginee, bookyear1879
