. Journal of electricity, power, and gas . contact members slidably supported on the conductors ofone series, other contact members carried by said first namedcontact member, and means on said other series of con-ductors for securing said last named contact members thereto. 948,292. Multistage Centrifugal Pump. Arthur Giesler,Dayton, Ohio, assignor to The Piatt Iron Works Co., Dayton,Ohio. In a multi-stage centrifugal pump, two impellers ar-. ranged with their inlets facing in opposite directions, pas-sageways adapted to conduct the fluid from one impeller tothe other, and means mounted at the

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. Journal of electricity, power, and gas . contact members slidably supported on the conductors ofone series, other contact members carried by said first namedcontact member, and means on said other series of con-ductors for securing said last named contact members thereto. 948,292. Multistage Centrifugal Pump. Arthur Giesler,Dayton, Ohio, assignor to The Piatt Iron Works Co., Dayton,Ohio. In a multi-stage centrifugal pump, two impellers ar-. ranged with their inlets facing in opposite directions, pas-sageways adapted to conduct the fluid from one impeller tothe other, and means mounted at the intermediate inlet of thelast impeller for balancing the thrust of the pump. 947,781. Apparatus for Alternating the Polarity of Cur-rent in Electric Circuits. Garrison Babcock, Rochester, N. Y.,assignor to Telechrometer Co., Rochester, N. Y. An appa-ratus of the character described, comprising two generators

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Keywords: ., bookcentury1800, bookdecade1890, bookidjo, booksubjectelectricity