. The street railway review . is engine runs two 2,500-hght Edisonmachines. The exterior of the engine is pleasing and itis without doubt one of the most compact of all the powerproducers in the Exposition, occupying a trifle less spacethan a vertical engine of equal capacity, besides claiming The low pressure cylinder valve is driven indepen-dently by an eccentric not controlled by the not automatic it is adjustable by hand so thatthe point of cut-off in the low pressure may be regulatedto suit the various conditions of load. The one solid piece of steel forming the crank sh
. The street railway review . is engine runs two 2,500-hght Edisonmachines. The exterior of the engine is pleasing and itis without doubt one of the most compact of all the powerproducers in the Exposition, occupying a trifle less spacethan a vertical engine of equal capacity, besides claiming The low pressure cylinder valve is driven indepen-dently by an eccentric not controlled by the not automatic it is adjustable by hand so thatthe point of cut-off in the low pressure may be regulatedto suit the various conditions of load. The one solid piece of steel forming the crank shaft ismachined off and key seated to receive the cast ironcounter balance weights. The counter balance weightsare disc shaped and keyed light to the shaft. The governor, after the Ball method, has two weightsand two counteracting springs running out from the rimof the governor pulley. Attached at one end to one of theweight arms and at the other end to the piston rod of adash pot is a third spring. The dash pot consists of an. CROSS COMPOUND- -EXHlIUTEn BY BALL ENGINE COMlANV OF ERIE. the advantage of easy access for manipulation and regu-lation. The cylinders of the engine are placed closetogether and it is designed as a condenser. The special design of this type of engine, built firstabout two years ago by the Ball Company, is for heavywork and all parts are made with this in view. Thecranks are opposite each other one counteracting theeffect of the other, thus balancing the machine and giv-ing quiet working at high speeds. The high pressure cylinder valve in the engine consistsof two parts connected in telescopic fashion, allowing eachhalf to adjust itself to its seat. This arrangement makesthe valve really double faced. The valve is directly con-trolled by the governor, making the only automatic cut-off on the engine. oil-filled cylinder, provided with a piston having an aper-ture through which the oil passes, as the piston travels ineither direction. The spring is arranged
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
