. The Street railway journal . ed, the first with muslin saturated with shei-lac, and then withtwo windings ofwaterproof tape. Itis then given twocoats of insulatedcompound. Afterthis the parts arebound togetherwith tape andplaced in an ovenheated by steam to150 degrees untilevery particle ofmoisture is drivenout. In windingthe wire on theforms each layer iscoated with shellacuntil gear case ismade of malleableiron, and is hingedso as to be readilyremovable. A view of themotor with lowerhalf of case lower-ed is shown in This engravingshows a novel feat-ure of the equip-men
. The Street railway journal . ed, the first with muslin saturated with shei-lac, and then withtwo windings ofwaterproof tape. Itis then given twocoats of insulatedcompound. Afterthis the parts arebound togetherwith tape andplaced in an ovenheated by steam to150 degrees untilevery particle ofmoisture is drivenout. In windingthe wire on theforms each layer iscoated with shellacuntil gear case ismade of malleableiron, and is hingedso as to be readilyremovable. A view of themotor with lowerhalf of case lower-ed is shown in This engravingshows a novel feat-ure of the equip-ment, a commutator turning attachment which will befound most convenient, especially on small roads. Super-intendents have found that no matter of what material the centers, and the armature ever after will run eccentricwith the shaft and soon be destroyed. In the Card motorequipment the commutator can be turned off withoutremoving the armature from its bearings. The motorcase and armature is first lowered and the pinion released. FIG. 4.—CARD MOTOR WITH ARMATURE LOWERED SHOWING COMMUTATOR TURNING ATTACHMENT. from the gear wheel. The pinion is then used as a meansfor turning the armature. This is done with a leatherbelt making connection with a pulley and crank handle
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Keywords: ., bookcentury1800, bookdecade1880, bookidstreetrailwa, bookyear1884
