. Official proceedings . ng: 39 a heavy weight to the other. When the piston was in the rightposition, steam was turned on which pushed it up and held thebeam down. The steam was then ahowed to condense, whichcreated a vaccum in the cyHnder, which with the weight on theother end of the beam returned the piston to its original positionready for another stroke. In time some one conceived the idea of injecting cold waterinto the steam to more rapidly condense it, but on all of thedesigns the inlet and outlet valves, were regulated by hand andit was almost impossible to build an engine that would
. Official proceedings . ng: 39 a heavy weight to the other. When the piston was in the rightposition, steam was turned on which pushed it up and held thebeam down. The steam was then ahowed to condense, whichcreated a vaccum in the cyHnder, which with the weight on theother end of the beam returned the piston to its original positionready for another stroke. In time some one conceived the idea of injecting cold waterinto the steam to more rapidly condense it, but on all of thedesigns the inlet and outlet valves, were regulated by hand andit was almost impossible to build an engine that would run atthe rate of more than sixteen strokes a minute. In a great manyof these engines the cylinders were cjuite large, some o£ themover ]2 inches in diameter, but the pressures were low and they alldepended on the condensing of the steam in the cylinders toenable them to work. No one had yet thought of an exhaust,and for over fifty years no changes or improvements of anvimportance were made from Newcomens original First internally fired , 1740. In the meantime. Watt appeared on the scene. This wasabout 1760. To him we owe the greatest development of thesteam engine. The first thing he did was to let the steamescape after it had done its work, and condense it in a separatechamber. From that it was but a step to the guide and pistonand the cvlinders closed at botli ends. Boulton worked withWatt and ]\Iurdock followed them very closely. The two 40 Trcvithicks, father and son, were also adding their efforts alongabout this time, and from then on the development was muchmore rapid. The first man to apply the power of steam to a movingvehicle was Cugnot of France in 1769. The first traveling engine in England was that built byTrevithick who carried people in 1801 and Wm. Hedley broughtout Puffing Billy in 1813. Geo. Stephenson developed his first locomotive in 1814 andkept on improving his idea until he brought out the Rocket in1830. In 1836 he brought out a sec
Size: 1555px × 1607px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorrailwayc, bookcentury1900, bookdecade1900, bookyear1901
