. Electric railways, theoretically and practically treated . r handle is turned off. When the multiple switch is in Position J the reversemagnets are deenergized, the air supply to circuit breakercylinder D is cut off so that when the circuit through C. 6 is interrupted, the circuit breaker may be is arranged so the cylinder A will not work againstcylinder D of circuit breaker. This type of control is remarkable for the great numberof safety devices it contains. It has been employed exten-sively by the Brooklyn Rapid Transit Company, but isnow being superseded by the Westingh
. Electric railways, theoretically and practically treated . r handle is turned off. When the multiple switch is in Position J the reversemagnets are deenergized, the air supply to circuit breakercylinder D is cut off so that when the circuit through C. 6 is interrupted, the circuit breaker may be is arranged so the cylinder A will not work againstcylinder D of circuit breaker. This type of control is remarkable for the great numberof safety devices it contains. It has been employed exten-sively by the Brooklyn Rapid Transit Company, but isnow being superseded by the Westinghouse Unit SwitchControl. SPRAGUE SYSTEM. The Sprague System is claimed to be the first methodof multiple unit control put into successful operation. Ittherefore seems appropriate to consider it, although thepatent rights are controlled by the General Electric Com- 132 ELECTRIC RAILWAYS. pany, who have embodied the important elements of thissystem in what is known as the Sprague General ElectricType M Control, previously described. %mi^*^m^.^W&-!W^m^mm\. Fig. 83. —RELAY BOARD, SPRAGUE SYSTEM.
Size: 2232px × 1119px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkvannostrand
