. Electric railway gazette . has taught that us all of these com-bined parts are intrinsically frail, and not whencombined with worthless rail crossings (stand-ard though their work be), can the crossing beexpected to last one 0 f m ticity should be provided for; opposite effectsmust be sought for. ( Tff be Continued.) Friction Clutch Device for ConstantSpeed Motors. * The device shown in the accompanying dia-gram is designed to be used in connection witha constant speed motor for the operation ofelectric cars, entirely obviating the necessity forusing resistance coils. It is a well k
. Electric railway gazette . has taught that us all of these com-bined parts are intrinsically frail, and not whencombined with worthless rail crossings (stand-ard though their work be), can the crossing beexpected to last one 0 f m ticity should be provided for; opposite effectsmust be sought for. ( Tff be Continued.) Friction Clutch Device for ConstantSpeed Motors. * The device shown in the accompanying dia-gram is designed to be used in connection witha constant speed motor for the operation ofelectric cars, entirely obviating the necessity forusing resistance coils. It is a well known factthat the greatest strain thrown on an electricrailway motor is when the inertia of the car isbeing overcome. It is also known that theelectric motor, like the steam motor, gives itsgreatest efficiency at a certain speed, the effi-ciency being considerably decreased by anyvariation in the number of revolutions, eithergreater or less than this. To utilize this featureof the ni^tnr is one ohjert ex]ierted to be gained. Fig How we would build them : After excavations5x16x16, we would put in a concrete foundation12x16x16 feet, made of the best Portland cem-ent and Silcate limestone in the order of i, 2,3, 4, or one in 9. Upon this we would place acombined boiler iron box or series of framesfilled with concrete made in a 2 to 6 order,each arm of the combine underlying each railwith a heavy inch plate capingor top, to which allparts of the superstructure shouldbe immovably fastened by nut-locked bolts. The modern cross-ing, to be eminently a crossing,should have two or four divisionsof the rails forged as one. To il-lustrate, the center of the centershould be one piece of forging,that all squares or rectanglesshould have endless rail sides forserviceon the steam or cable lines. Lastly, an adjustable brace madefrom 12 inch beams should extendwith (under) the steam road rails aconvenient distance, perhaps 10 readjusting the line of the cabletrack, which is pushed from it
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1895
