. Electric railway journal . LIFTING A POLE BY MEANS OF A JACK Three heights are provided, of 9, 10 and 11 in., respec-tively, and the rise varies from 31 to 51 in. Useful Chart Showing Cost of EvaporatingWater in the Steam Boiler THE engineering department of the WestinghouseElectric & Manufacturing Company has preparedthe accompanying straight-line chart to simplify calcu-lation of evaporating costs. The inclined lines represent the relation of costs ofcoal per ton and corresponding costs of evaporating1000 lb. of water from and at a temperature of 212. ■| £ 3 4 5,6 7 6 9 10 Cost of Coal per
. Electric railway journal . LIFTING A POLE BY MEANS OF A JACK Three heights are provided, of 9, 10 and 11 in., respec-tively, and the rise varies from 31 to 51 in. Useful Chart Showing Cost of EvaporatingWater in the Steam Boiler THE engineering department of the WestinghouseElectric & Manufacturing Company has preparedthe accompanying straight-line chart to simplify calcu-lation of evaporating costs. The inclined lines represent the relation of costs ofcoal per ton and corresponding costs of evaporating1000 lb. of water from and at a temperature of 212. ■| £ 3 4 5,6 7 6 9 10 Cost of Coal perTon of 2000 DollarsCHART SHOWING THE RELATION OF WATER EVAPORA-TION AND COAL COSTS IN STEAM BOILERS deg. Fahr. for rates of evaporation between 5 and 11lb. of water per pound of coal. Enough lines havebeen drawn to cover the range of ordinary chart can be used not only to determine the costof evaporating any quantity of water at any price ofcoal but it can be used to determine the evaporationrequired to generate steam at a certain cost. September 20, 1919 Electric Railway Journal 587 Iowa Operating Men in Session Midyear Inspection Meeting, Separate From Light-ing Association, Proved Great Stimulus THE midyear meeting of the operating men of tiieIowa Electric Railway Association, in session atDavenport, Iowa, as this issue goes to press, promises tobe a most successful experiment. There were morethan sixty delegates present on Wednesday, and inspite of a stormy day the interest and congeniahtywere not dampened. Four papers we
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