. American engineer and railroad journal . es of wavy tube:through which the steam is made to pass on its way from thboiler to the engine. The steam from the boiler enters at thetop. where the gases are comparatively cool, and passes out ofthe main steam pipe at the lower end, where the gases are hot-test. A temperature of 460 degrees to 480 degrees Fahrenheitis easily obtained. Above the superheater come the air-heatingtubes and casings, which, together with the fans, constitute theinduced-draught system. The engines have five cylinders, ofdiameters respectively of 17 ins., 24 ins., 34
. American engineer and railroad journal . es of wavy tube:through which the steam is made to pass on its way from thboiler to the engine. The steam from the boiler enters at thetop. where the gases are comparatively cool, and passes out ofthe main steam pipe at the lower end, where the gases are hot-test. A temperature of 460 degrees to 480 degrees Fahrenheitis easily obtained. Above the superheater come the air-heatingtubes and casings, which, together with the fans, constitute theinduced-draught system. The engines have five cylinders, ofdiameters respectively of 17 ins., 24 ins., 34 42 ins., and 4^ins. by 42 ins. stroke, the high-pressure valve being of thpiston type, and the others flat valves. February, 1901. AMERICAN ENGINEER AND RAILROAD JOURNAL. 61 STANDARD EQUALIZER Passenger Equipment, Lehigh Valley Railroad. MIDDLE BEARINGS ON DKIVINO AXLES. Our attention has been called by Mr. F. F. Gaines, Mechan-ical Engineer, Lehigh Valley Railroad, to a very convenient New York, Ontario & We tern SI-1&7I S1-1675 Standard Equalizer Springs, Passenger EquValley Railway. and compact tabulated form, used in orderingfor passenger equipment. Over thirty differformerly in use on that roadfor this particular equipment,but by different arrangementsof the three springs shown inthe engraving this number canbe reduced to three. TheseSpring No. 1674. ipment, Lehigh equalizer springsent springs were In order to overcomi a serious difficulty with hot drivingboxes of some mogul freight locomotives built in 1893, having19 by 24-in. cylinders, 63-in. driving wheel and a total weightof 138,000 Mr. West, Superintendent of Motive Power ofthe New York, Ontario & Western, devised a third bearingtor the driving axles of one of the engine to relieve the otherbearings of a portion of their 1 <»;.<: minis wire but 8 ins. In diameter and the relief thus afforded about a yearago was so satisfactory as to leai to the application of thesame plan to all the
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