. The street railway review . construction work, claiming that the great saving powerresults from its use, as the leakage is reduced to theminimum. Glass is very inexpensive material, costingonly about two cents for renewals. Experience hasproved, however, that no difficulty is experienced inpractice on account of the breaking of the glass, the samebeing thoroughly and firmly held in place and protectedby the metal The Wightman insulators are provided with the so-called La Grippe trolley-wire clamp, which requiresno solder or attaching of the trolley-wire. The PeoplesStreet Railway, of
. The street railway review . construction work, claiming that the great saving powerresults from its use, as the leakage is reduced to theminimum. Glass is very inexpensive material, costingonly about two cents for renewals. Experience hasproved, however, that no difficulty is experienced inpractice on account of the breaking of the glass, the samebeing thoroughly and firmly held in place and protectedby the metal The Wightman insulators are provided with the so-called La Grippe trolley-wire clamp, which requiresno solder or attaching of the trolley-wire. The PeoplesStreet Railway, of Scranton, is to be completely equippedwith these insulators, as a trial lasting through a periodof over two years has proved them to be very superior. Fig. 4 illustrates a new improvement in carbon brush-holders for Thomson-Houston railway motors. Muchtrouble has been experienced with the former style of holder from the breaking of the springs and the difficultyin renewing the same. The springs would break off veryclose to the point of attachment and fall on the commu-tator, causing a short-circuit and occasionally a burn-outof the armature. In the form of brush holder which weillustrate, the points of attachment of the springs are placedso as to bring the spring out of reach of heat caused by
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
