. The street railway review . constructed for useby the London General Omnibus Co. on the Hammersmith, Ken-sington, and Piccadilly Circus route in London. This car differs from the others illustrated in being driven by asteam instead of a petrol engine, the advantages accruing from this,being absence of smell and noise, and less risk of fire as heavy oilis used to generate the steam. The burner under the boiler iscapable of almost any grade of mineral oil from crudepetroleum upwards. 1 he oil is forced from the supply tank under apressure of 35 to 40 lb. per sq. in., a feed pump kee
. The street railway review . constructed for useby the London General Omnibus Co. on the Hammersmith, Ken-sington, and Piccadilly Circus route in London. This car differs from the others illustrated in being driven by asteam instead of a petrol engine, the advantages accruing from this,being absence of smell and noise, and less risk of fire as heavy oilis used to generate the steam. The burner under the boiler iscapable of almost any grade of mineral oil from crudepetroleum upwards. 1 he oil is forced from the supply tank under apressure of 35 to 40 lb. per sq. in., a feed pump keeping the pressureconstant. The burner is enclosed in a sheet-steel box lined withnickel and asbestos. The boiler is of the water-tube type, and the tubes which forman endless pipe arc arranged in a square gridiron pattern measuringabout 30 in. by 12 in. They are of weldless steel, half an inch indiameter, and are expanded in top and bottom plates. Each boileris tested by hydraulic pressure to 750 lb. per sq. in., and by steam. FIO. 6. WOLSELEV CO. 20-H. V. MOTOR-OMNIBUS. to 450 lb. Twin safety valves blowing off at 400 lb. and automaticregulator and water gage are fitted to the boiler. The circulationof water in the tubes is so rapid that no trouble is experienced withlime or other deposits. The engine is double acting, and has two horizontal cylinders 4in. by 4 in. The valves are actuated by the Joy gear. The engineis enclosed in a cast aluminum case with removable panels. The engine shaft drives on to a bronze gear ring encircling thedifferential gear box. The six gear wheels are of phosphor bronzeand are machine cut. Power is transmitted from the differentialshaft to the driving wheels through strong roller chains. The wheels are of the artillery pattern with steel hubs, oak spokes. August 15, Ijo^.] STKICET RAILWAY 487 aiul ash felloes, and arc 34 in. in dianieler Ihc ear is providedwilli two indepcndcnl band lirakes, operated rospeelivcly by a footand hand lever.
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
