. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . d where the time element in delivery i>important. Speaking some time ago on the sub-ject of shop output being largely deter-mined by the ability to heat material,Mr. John McNally, foreman blacksmithof the Chicago 4 North-Western, said, insubstance, that When the larger partof our output was the result of handlabor, the heating of the material was asimple question, the quality of heat be-ing the only consideration necessary, asany of the coal or coke fires could easilysupply sufficient work
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . d where the time element in delivery i>important. Speaking some time ago on the sub-ject of shop output being largely deter-mined by the ability to heat material,Mr. John McNally, foreman blacksmithof the Chicago 4 North-Western, said, insubstance, that When the larger partof our output was the result of handlabor, the heating of the material was asimple question, the quality of heat be-ing the only consideration necessary, asany of the coal or coke fires could easilysupply sufficient working material. Inlooking for a method of increasingheating facilities for machine work, pe-troleum, so bountifully supplied by na-ture, was naturally a great important points to consider havebeen quality and quantity of heat pos-sible of production, cost, and the bestmethod of producing it, and whatshould, but has not always been, con-sidered, the conditions under which fur-nace men are subjected in handling thematerial. Crude petroleum, or fuel oil,which is commonly used, has a very. AVENAL STATION ON THE CARTAGENA-MAGDELEN.\ high heating efficiency, containing as itdoes from 20,000 to heat units perpound, as compared with from 12,000 to14,000 per pound, for coal. It is capableof practically perfect combustion, leav-ing no ash, and, when properly handled,producing no smoke. The quality ofthe heat is as satisfactory as coal orcoke, if generated in the proper man-ner. The mere act of burning oil is asimple one, but the burning of oil andproducing a proper flame is a very par-ticular process. Atomizing the oil withair or steam under high pressurethrough variously constructed burners,and burning the resulting mixture bydepending upon the heat of the furnaceto keep up the combustion, is a methodcommonly followed. This high pres-sure or atomizer system almost invari-ably produces an oxidizing flame, re-sulting in burning the material. Bridgewalls and ot
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
