. The Street railway journal . is always used with the same motor and onlyfor that motor. The other point of difference lies in the factthat each resistance contactor short-circuits one section of theresistance only instead of controlling in some cases more than wheel hubs. It is fitted with the nose suspension and its frontside is supported by lugs cast on a frame. This lug is designedto rest on a bracket riveted to the truck transom with a forgedstrip bolted over the top of the lug to prevent the motor fromrising. The motor is mounted on or removed from the truckfrom above, when the truck is
. The Street railway journal . is always used with the same motor and onlyfor that motor. The other point of difference lies in the factthat each resistance contactor short-circuits one section of theresistance only instead of controlling in some cases more than wheel hubs. It is fitted with the nose suspension and its frontside is supported by lugs cast on a frame. This lug is designedto rest on a bracket riveted to the truck transom with a forgedstrip bolted over the top of the lug to prevent the motor fromrising. The motor is mounted on or removed from the truckfrom above, when the truck is out from under the car, no pitbeing required. The magnet frame is unsplit, and is made of one piece ofcast-steel, substantially in the form of a cube with well-roundedcorners and large bored openings, one at each end, into whichframe heads carrying the armature shaft bearings are these openings the armature is put in place or re-moved from the frame. The pole pieces are laminated and arc bolted [u the interior,. PLAN AND ELE\ATIOXS OF G. MOTOR one. It follows from this that each contactor carries the cur-rent of only one motor. This arrangement allows the resistancegrids to be made of larger cross section. At the same time thenumber of contactors required is not materially increased,owing to the fact that with the former method, in some cases,two contactors had to be used in parallel when working withheavy current. By the arrangement described the actual num-ber of contactors is increased only by two, viz., from 14 to 16. THE GENERAL ELECTRIC 69-M(lT(»R The General Electric motor which was bought Ijy the RapidTransit Construction Company is to be known as the GeneralElectric 69-motor, and has a capacity of 200 hp. It was de-signed especially to meet the specifications of the Rapid TransitCompany. The motor, which has a weight of approximately 6000 lbs., andis adapted for mounting on a truck with 50 ins. between the top, bottom and sides of the frame throu
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
