. American engineer and railroad journal . foot of grate per hour, lbs. of water per square footof heating surface per hour, and sq. ft. of heating surfaceper horse power per hour. The Michigan Central locomotivegives a figure of sq. ft. of heating surface per horse powerhour. If these assumptions are fair, and they appear to be, thePennsylvania locomotive is capable of a remarkable perform-ance with a small heating surface. Evidently a great dealremains to be learned about locomotive boiler present enormous heating surfaces may prove to be ob-tained somewhat at
. American engineer and railroad journal . foot of grate per hour, lbs. of water per square footof heating surface per hour, and sq. ft. of heating surfaceper horse power per hour. The Michigan Central locomotivegives a figure of sq. ft. of heating surface per horse powerhour. If these assumptions are fair, and they appear to be, thePennsylvania locomotive is capable of a remarkable perform-ance with a small heating surface. Evidently a great dealremains to be learned about locomotive boiler present enormous heating surfaces may prove to be ob-tained somewhat at the expense of circulation. KATIOS. Tractive power used below a oi^ ^? Total cylinder volume «•»* oh^r. Heating surface to cylinder volume a?o Tractive weight to heating surface *. Tractive weight to tractive etlort *gg Tractive effort to heating surface ;vc? Heating surface to grate area . ^toon Tractive effort X diameter of drivers ^ heating surface 11 i w Heating surface to tractive effort ■WS Total weight to heating surface. . E 2 a PASSENCER LOCOMOTIVE. Pennsylvania Lines West of Dimensions. Q„u„e . 4 ft. 9 ins. Fuel Bituminous coal Weightin working order Ino nnn Ik! Weight on drivers ■ ?,??■?„„ h Weight engine and tender in working order VVt c Wheel base, driving I [■ ° P**- Wheel base, rigid -^ • • ins. Wheel base, total ■ • 30 ft .IVa ns. Wheel base, total, engine and tender bu it. z a-tb ms. Cylinders Diameter of cylinders 201/2 ins. Stroke of piston. . ; ^o 1°^- Horizontal thickness of piston ■ • 5 ^ns. Diameter of piston rod n » ■°^ Kind of piston packing : • ^ • .,• • •-Cast iron Kind of piston-rod packing Pennsylvania Railroad standard Size of steam ports A T^O InS x I1/2 ms. Size of exhaust ports \ For last 22 engines { ..20 ins. x 3 ms. j 1 1% ms. of slide valves: , , „„ t,- u j First 10 engines, piston valve ; last 22 engines, Richardson Greatest travel of slide valves -J in
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
