A history of the growth of the steam-engine . shaped exhaust-pipe, by which a good draught is se-cured. The attachments h, c, d, e, f, g—whistle, steam-gauge, sand-box, bell, head-light, and cow-catcher —arenearly all peculiar, either in construction or location, to theAmerican locomotive. The cost of passenger-locomotivesof ordinary size is about $12,000 ; heavier engines some-times cost $20,000. The locomotive is usually furnishedwith a tender, which carries its fuel and water. The stand-ard passenger-engine on the Pennsylvania Railroad has fourdriving-wheels, 5^ feet diameter; steam-cylinde
A history of the growth of the steam-engine . shaped exhaust-pipe, by which a good draught is se-cured. The attachments h, c, d, e, f, g—whistle, steam-gauge, sand-box, bell, head-light, and cow-catcher —arenearly all peculiar, either in construction or location, to theAmerican locomotive. The cost of passenger-locomotivesof ordinary size is about $12,000 ; heavier engines some-times cost $20,000. The locomotive is usually furnishedwith a tender, which carries its fuel and water. The stand-ard passenger-engine on the Pennsylvania Railroad has fourdriving-wheels, 5^ feet diameter; steam-cylinders, 17 inchesdiameter and 2 feet stroke ; grate-surface 15|- square feet,and heating-surface 1,058 square feet. It weighs 63,100pounds, of which 39,000 pounds are on the drivers and24,100 on the truck. The freight-engine has six driving- 374 THE STEAM-ENGINE OF TO-DAY. wheels, 54f inches in diameter. The steam-cylinders are18 inches in diameter, stroke 23 inches, grate-surface feet, heating-surface 1,096 feet- It weighs 68,500. pounds, of which 48,000 are on the drivers and 20,500 onthe truck. The former takes a train of five cars up anaverage grade of 90 feet to the nule. The latter is attached PORTABLE AND LOCOMOTIVE ENGINES. 375 to a train of 11 cars. On a grade of 50 feet to the mile,the former takes 7 and the latter 17 cars. Tank-enginesfor very heavy work, such as on grades of 320 feet to themile, which are found on. some of the mountain lines ofroad, are made with five pairs of driving-wheels, and withno truck. The steam-cylinders are 20^ inches in diameter,2 feet stroke ; grate-area, 15f feet; heating-surface, 1,380feet; weight with tank full, and full supply of wood,112,000 pounds ; average weight, 108,000 pounds. Suchan engine has hauled 110 tons up this grade at the speedof 5 miles an hour, the steam-pressure being 145 adhesion was about 23 per cent, of the weight. In checking a train in motion, the inertia of the engineitself absorbs a seri
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Keywords: ., bookcentury1800, bookdecade1870, bookidc, booksubjectsteamengines
