GB370067A - Improvements in and relating to electric meters and like induction motor movements - Google Patents

Improvements in and relating to electric meters and like induction motor movements

Info

Publication number
GB370067A
GB370067A GB83531A GB83531A GB370067A GB 370067 A GB370067 A GB 370067A GB 83531 A GB83531 A GB 83531A GB 83531 A GB83531 A GB 83531A GB 370067 A GB370067 A GB 370067A
Authority
GB
United Kingdom
Prior art keywords
insulating
relating
driving units
inner core
induction motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB83531A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ferranti International PLC
Original Assignee
Ferranti PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ferranti PLC filed Critical Ferranti PLC
Priority to GB83531A priority Critical patent/GB370067A/en
Publication of GB370067A publication Critical patent/GB370067A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/36—Induction meters, e.g. Ferraris meters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Abstract

370,067. Induction motors. FERRANTI, Ltd. and BATT, F. H., Hollinwood, Lancashire. Jan. 9, 1931, No. 835. [Class 35.] In induction electrical apparatus wherein a number of motor or torque-producing elements act on the same rotor, the circulation of eddy currents is restricted to the region of their generation by providing an outer conducting rim b, Fig. 1, and an inner core a of insulating material or metal having a high resistivity. The inner core a may be removed and insulating spokes provided. In a modification, Fig. 4, two annular conducting rings d, e separated by a ring f of insulating material are provided, the inner ring being attached to a central disc a of insulating or highly resistive material. In Fig. 1, eddy-current interaction is prevented between two driving units A, B and a brake magnet D, and in Fig. 4 two driving units A, B act on two separate annuli d, e.
GB83531A 1931-01-09 1931-01-09 Improvements in and relating to electric meters and like induction motor movements Expired GB370067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB83531A GB370067A (en) 1931-01-09 1931-01-09 Improvements in and relating to electric meters and like induction motor movements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB83531A GB370067A (en) 1931-01-09 1931-01-09 Improvements in and relating to electric meters and like induction motor movements

Publications (1)

Publication Number Publication Date
GB370067A true GB370067A (en) 1932-04-07

Family

ID=9711296

Family Applications (1)

Application Number Title Priority Date Filing Date
GB83531A Expired GB370067A (en) 1931-01-09 1931-01-09 Improvements in and relating to electric meters and like induction motor movements

Country Status (1)

Country Link
GB (1) GB370067A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1265286B (en) * 1963-02-27 1968-04-04 Westinghouse Electric Corp Inductive drive device, especially induction electricity counter, with several drive systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1265286B (en) * 1963-02-27 1968-04-04 Westinghouse Electric Corp Inductive drive device, especially induction electricity counter, with several drive systems

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