. American engineer and railroad journal . tion. November 15. 1300. they measured Ts thickness. When taken out. February 27. 1901, the plasticbronze measured »« in., and the phosphor bronze as in. Onthat date a new phosphor bronze bearing was applied and oppo-site to this the original plastic bronze bearing compared again, April 29, the second phosphor bronzebearing was worn down to the limit of usefulness. 34 in., whilesthe plastic bronze still measured 7 16 in. Thus the plasticbronze showed a saving of 100 per cent, over the other metal. 358 AMERICAN ENGINEER AND RAILROAD
. American engineer and railroad journal . tion. November 15. 1300. they measured Ts thickness. When taken out. February 27. 1901, the plasticbronze measured »« in., and the phosphor bronze as in. Onthat date a new phosphor bronze bearing was applied and oppo-site to this the original plastic bronze bearing compared again, April 29, the second phosphor bronzebearing was worn down to the limit of usefulness. 34 in., whilesthe plastic bronze still measured 7 16 in. Thus the plasticbronze showed a saving of 100 per cent, over the other metal. 358 AMERICAN ENGINEER AND RAILROAD JOURNAL. TESTS OF WIDE AND NARROW FIREBOX LOCOMOTIVES. Southern Pacific Railway. Because of the relatively large number of moderately widefirebox locomotives built during the past year the comparisonobtained in a series of road tests between narrow and widesoft coal fireboxes on the Southern Pacific will interest ourreaders. These figures have been received through the courtesyof J. Small. Superintendent of Motive Power, who has. Profile of Sacramento Division Profile of Sacramento Division. 631 sq. ft. morp heating surface than the other engine, whichprobably contributes somewhat to the good showing made bythe engine with the larger grate. The log of the tests is re-produced in the accompanying table, which gives the datafrom each run and the averages for both engines. The trainweights are exclusive of the engine, tender and caboose andrepresent the manifest tonnage, including the resistance ofempty cars. These tests were made under ordinary serviceconditions except as to the measurement of coal and water. Ananalysis of the coal gave the following: Analysis of Coal. Per el. Moisture Volatiles Carbon Ash Sulphur Indicator records were taken but are not reproduced here. The distance from Rocklin to Truckee is miles, the profile of the division being indicated in the engraving. Clear weather prevailed in all the tests,but the trac
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
