. American engineer and railroad journal . Thk accompanying illustration is from a photograph ofa ten-wheel compound engine recently built by the Pitts-burgh Locomotive Works. It is of the two-cylinder type,and has the starting-valve patented by Mr. Henry F. Col-vin, of Philadelphia. With this the engine can be workedas a compound, or steam can be admitted directly into thelow-pressure cylinder at the will ol the engineer. In thelatter case the valve admitting steam from the boiler acts Briefly stated, our railways cost £33,312,608 ; duringthe past year they earned £,296, and the working
. American engineer and railroad journal . Thk accompanying illustration is from a photograph ofa ten-wheel compound engine recently built by the Pitts-burgh Locomotive Works. It is of the two-cylinder type,and has the starting-valve patented by Mr. Henry F. Col-vin, of Philadelphia. With this the engine can be workedas a compound, or steam can be admitted directly into thelow-pressure cylinder at the will ol the engineer. In thelatter case the valve admitting steam from the boiler acts Briefly stated, our railways cost £33,312,608 ; duringthe past year they earned £,296, and the working ex-penses amounted to £1,914,252, thus leaving a net profiton working of £1,193,044. equal to percent, intereston capital. Ttiese figures clearly indicate the extent towhich the railways are used by the, comparatively speak-ing, limited population of the colony. On June 30 there were 2,185 niiles open for traffic, thepassenger journeys reached 19,918,916, and the tonnageof goods carried 4,296,713. To convey this traffic 8,356,096. TWO-CYLINDER COMPOUND ENGINE BY THE PITTSBURGH LOCOMOTIVE WORKS. as a reducing valve, in order to equalize the force exertedin the two cylinders. The boiler has large heating surface and is intended towork at 180 lbs. pressure. The high-pressure cylinder is19 X 26 in. and the low-pressure 29 X 26 in. The driv-ing-wheels are 56 in. in diameter. The driving wheel-base is 11 ft., and the total wheel-base is 21 ft. 8 in. Thetotal weight of the engine is lbs., of which 95,000lbs. are carried on the driving-wheels. This engine has been on trial on the Pittsburgh & West-ern Railroad, and its performance so far has been verysatisfactory. No detailed reports of tests have yet beenmade, but ihey will doubtless be furnished hereafter. RAILROADS OF NEW SOUTH WALES. (From the AVty South Waits Railway Buii)^et.) Thic Fourth Annual Report of the Railway Commis-sioners of New South Wales was laid on the table of theHouse on August 30, which is within
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
