. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . f the operators time thatis apt to occur where other forms of heat-ing than electric are employed. The time switch is furnished at a slightadditional cost. It can be set to closeor open the circuit at any time of theday or night. Thus, if the composingroom force goes to work at 8 a. m. thetime switch can be set to turn on thecurrent at 6:30, and the metal will beready for casting when the operators ar-rive. In general form the Wicker-Type Potis a modification of the standard gas pot, 384 RAIL
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . f the operators time thatis apt to occur where other forms of heat-ing than electric are employed. The time switch is furnished at a slightadditional cost. It can be set to closeor open the circuit at any time of theday or night. Thus, if the composingroom force goes to work at 8 a. m. thetime switch can be set to turn on thecurrent at 6:30, and the metal will beready for casting when the operators ar-rive. In general form the Wicker-Type Potis a modification of the standard gas pot, 384 RAILWAY AND LOCOMOTIVE ENGINEERING. October, 1914. the principal difference being its shape,which is rectangular instead of cut-away view is shown by Fig. 1. Theelectrical heating units entirely surroundthe pot, and the asbestos lining is shownwhich prevents the heat from reachingthe outside casting. The maximumamount of power consumed is 1,650 wattsand the minimum 485 watts, the averageconsumption being about 800 watts. Themaximum is used only when the tem-perature is below the proper working. TIME SWITCH FOR USE WITH WESTING-HOUSE WICKER TYFE POT. point, and the minimum is used to main-tain the working temperature, which itwill do till cold metal is added to re-plenish the supply in the pot, or until thetemperature is reduced by radiation thatis slightly in excess of the amount ofheat being supplied by the mmimum cur-rent used. The change from maximum to mini-mum or vice versa is effected by a mag-netic switch operated by a thermostatplaced in proximity to the mouthpiece ofthe pot, or at point of moulding. Thisthermostat acts to cut the current con-sumption from maximum to minimumwhen the right working temperature isreached, thus preventing too hot a tem-perature, and from minimum to maxi-mum when it is necessary to prevent thetemperature from running too low. Electricity for Coal Hoisting. The Saw Mill Run Coal Company, ofPittsburgh, Pa., has compiled some in-teresting o
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
