. The street railway review . 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 spring
. The street railway review . 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. FIG. 3. arcing, or bad contact at the brushes. No point in thespring is bent and therefore weakened, as each spring isprovided with removable cast terminal eyes. These ter-minal eyes make a neat, mechanical construction, and the
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
