. American engineer and railroad journal . ALL RINGS PARTED IN CENTER AT BOTTOM. Sections of Valves and Bushing. the performance during this time. Both engines w ere haulingtrains No. 3 and 4, between Norfolk and Roanoke, during thisperiod. The record shows as follows: No. pass, car mla. Mis. light. Coal in lbs. Lbs. coal per car ,219 115 36,430 100 367,500 From the above, it will be seen that engine 77 used about four-tenths of one per cent, more coal than engine 75 in identicallythe same service, and this small amount could easily be ac- (comp.)77 simple!. Loc
. American engineer and railroad journal . ALL RINGS PARTED IN CENTER AT BOTTOM. Sections of Valves and Bushing. the performance during this time. Both engines w ere haulingtrains No. 3 and 4, between Norfolk and Roanoke, during thisperiod. The record shows as follows: No. pass, car mla. Mis. light. Coal in lbs. Lbs. coal per car ,219 115 36,430 100 367,500 From the above, it will be seen that engine 77 used about four-tenths of one per cent, more coal than engine 75 in identicallythe same service, and this small amount could easily be ac- (comp.)77 simple!. Locomotive with Piston i W. Rv- counted for by variations in quality of fuel, or other minorcauses. As compound engines usually show an economy of from15 to 30 per cent, in fuel over simple engines, we think that thisis a very good showing for a simple engine, and that a large February, 1898. AND RAILROAD JOURNAL. 41 portion of it is probably brought about by the directness of tha watcli registered lifthn of sii-onds. But the total time, from eteam passages, the small amount of clearance and the fact that the momont the . b.^nn to turn till they ceased to move, ccf u 1 ooijafoco. V . ■ ,. i Is absolutclv ox;ut. Fiirther, in somo cases, owing to passing the steam ports and passages are so well protected against exter- ^^^ij^j, ^^ g,;^^^ ^^jj^^^ accidental causes. I missed a post, and nal radiation. In those cases I have bracketed that mile and the next __^__^_-__^^^_^___ together: Miles. Sccoiifis. MilCB. Seconds. Miles. Seconds. TERMS OF STEAM ENGINE EFFICIENCY. J
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
