. Electric railway gazette . , and by 1of apparatus forming tl of other patents stillpending before the ] the rails are rendered even stronger and tougher than therest of the rail, so that any amount of pounding or strain cannot affect the junction, and the operation of welding andtempering take^ place much faster and can be effectedexpense, we are assured, than the laying of the ordinaryjoints. To provide for expansion and contraction, a specialform of slip joint has been devised, of which there are ordi-narily four to the mile. The section of rail between twojoints is firmly spiked at its ce
. Electric railway gazette . , and by 1of apparatus forming tl of other patents stillpending before the ] the rails are rendered even stronger and tougher than therest of the rail, so that any amount of pounding or strain cannot affect the junction, and the operation of welding andtempering take^ place much faster and can be effectedexpense, we are assured, than the laying of the ordinaryjoints. To provide for expansion and contraction, a specialform of slip joint has been devised, of which there are ordi-narily four to the mile. The section of rail between twojoints is firmly spiked at its central portion, and expandsin both directions. This joint is so arranged as to give asolid support to the wheels while passing, so that practic-ally the entire track is one smooth, continuous applied to steam or street railways, this construc-tion will contribute very materially to the comfort oftraveling, to the life of the roadway and rolling stock, andto the economy and general superiority of the permanent 2.—Ries Combination Conduit. adaptation of this welding and tempering process, this in-vention has for its object, first, to provide for the regulationof the heating effect of the electric current both before andafter the formation of the joint; second, to furnish a suitabletempering compound and improved means for the immediateapplication of same after fusion; third, to convert a primarycurrent of high potential and small quantity into a current. of low potential and heavy heating effect by means ofsecondary generators or transformers and other apparatus of Edisons Electro-Motograph. About the first instance in which the electric current wasdirectly employed to increase the amount of friction betweenthe two rubbing surfaces was in Edisons this instrument, the variations in the strength of telephoniccurrent caused corresponding variation in friction betweena revolving cylinder of moistened chalk and the free end ofan adjustable conta
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1895
