. The Street railway journal . gas engine is wellexemplified in the type shown in the accompanying illustra-tions of an engine built by Richardsons, Westgarth & Com-pany, Ltd., of Middlesbrough, Eng., who manufacture the well-known Cockerill type gas engine, under license from the So-ciete Anonyme John Cockerill, Seraing, Belgium. This enginehas two double-acting cylinders, which are 23% ins. in diameterby 31^-in. stroke, placed tandem, and is now driving one of per cubic meter, the use of this apparatus eliminates all thetrouble experienced in gas engines due to the presence ofdust, etc. The
. The Street railway journal . gas engine is wellexemplified in the type shown in the accompanying illustra-tions of an engine built by Richardsons, Westgarth & Com-pany, Ltd., of Middlesbrough, Eng., who manufacture the well-known Cockerill type gas engine, under license from the So-ciete Anonyme John Cockerill, Seraing, Belgium. This enginehas two double-acting cylinders, which are 23% ins. in diameterby 31^-in. stroke, placed tandem, and is now driving one of per cubic meter, the use of this apparatus eliminates all thetrouble experienced in gas engines due to the presence ofdust, etc. The engine works on the Otto cycle, and as it has double-acting cylinders, it receives one power impulse every stroke-that is, two impulses per revolution, like a steam engine. Aswill be seen from the illustrations, the gas and air valves areplaced on top of the cylinders, thus making them most accessi-ble. The exhaust valves are placed below, and one set of camson the side shaft controls each complete set of valves, thus re-. TANDEM DOUBLE-ACTING ENGINE Brown, Boveri & Companys continuous-current generators,direct coupled to the endof the crankshaft and running at125 r. p. m. The engine was originally built for the electric station ofthe builders, but as soon as it was set to work it was purchasedby the Cargo Fleet Iron Company, Ltd., of Middlesbrough, atwhose works it is now installed, and where it is driven byordinary blast furnace gas, which is cleaned by a Theisenrotary gas cleaner. This apparatus is also manufactured bythe engine builders, and has proved to be entirely satisfactoryin operation, as it cleans the gas so that it does not containmore than .02 grammes of dust per cubic meter. As gas en-gines run very well even with gas containing up to .1 gramme ducing the working parts to a minimum and making them veryaccessible. The cylinders are fitted with loose covers at eachend to facilitate overhauling the valves and to enable the pis-tons to be drawn and examined
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
