| 摘要 |
441,213. Current and pressure meters. BRITISH SANGAMO CO., Ltd., and ROGERS, S. B., Cambridge Arterial Road, Enfield, Middlesex. May 24, 1934, No. 15569. Drawings to Specification. [Class 37] [See also Groups XXXVIII and XXXIX] In a system for transmitting indications of current flow from a plurality of subscribers' locations to a central station, time controlled means, such as motor driven switches, are provided at the different locations and are arranged to connect sequentially to a metering line the current transformers at the locations. The current transformers are connected to the metering line through rectifiers. |
