GB705636A - Improvements in eddy current electric brakes - Google Patents

Improvements in eddy current electric brakes

Info

Publication number
GB705636A
GB705636A GB1077952A GB1077952A GB705636A GB 705636 A GB705636 A GB 705636A GB 1077952 A GB1077952 A GB 1077952A GB 1077952 A GB1077952 A GB 1077952A GB 705636 A GB705636 A GB 705636A
Authority
GB
United Kingdom
Prior art keywords
circuit
switch
brake
relay
inductors
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
GB1077952A
Inventor
Pierre Etienne Bessiere
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.)
ELECTRO MECANIQUE DE LAVEYRON
Original Assignee
ELECTRO MECANIQUE DE LAVEYRON
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 ELECTRO MECANIQUE DE LAVEYRON filed Critical ELECTRO MECANIQUE DE LAVEYRON
Priority to GB1077952A priority Critical patent/GB705636A/en
Publication of GB705636A publication Critical patent/GB705636A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
    • H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Braking Systems And Boosters (AREA)
  • Braking Arrangements (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

705,636. Eddy current brakes. ELECTROMECANIQUE DE L'AVEYRON. April 29,1952, No. 10779/52. Class 103(1) An eddy current brake, the inductors of which are indicated at 1, is controlled by a circuit which makes it possible to apply to at least some of the inductors a voltage higher than that which can be used for an unlimited period, so as to thus obtain intensive braking, automatic means being provided for reducing the voltage before it can injure the brake. In the circuit of Fig. 1, power is supplied normally from a single battery 2 through a switch 8 and line 4 to a control switch 15, 20. To energize the brake the arm 20 is moved so as to close arm 15 with contacts 16, 16<SP>1</SP>, 17 successively cutting out resistances. Further movement of arm 15 brings it into engagement with a spring loaded stop 18 which when depressed closes a switch contact 13 so as to energize a line 12 to a relay 9. Energization of relay 9 closes a switch 8 between line 6 and 7 so that a battery 2<SP>1</SP> as well as a battery 2 is now connected in series with the inductors 1 and intensive braking results. The unit 10 in the circuit to the relay coil 9 contains a thermostat, for instance a bimetallic strip, which keeps the circuit 11, 12 closed as long as the brake does not reach a certain temperature. Above this temperature it operates to interrupt the feed circuit to the relay 9. Instead of a thermostat a simple time measuring device may be used. Alternative dispositions for the switch 13 are also described.
GB1077952A 1952-04-29 1952-04-29 Improvements in eddy current electric brakes Expired GB705636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1077952A GB705636A (en) 1952-04-29 1952-04-29 Improvements in eddy current electric brakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1077952A GB705636A (en) 1952-04-29 1952-04-29 Improvements in eddy current electric brakes

Publications (1)

Publication Number Publication Date
GB705636A true GB705636A (en) 1954-03-17

Family

ID=9974104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1077952A Expired GB705636A (en) 1952-04-29 1952-04-29 Improvements in eddy current electric brakes

Country Status (1)

Country Link
GB (1) GB705636A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418114A1 (en) * 1978-02-22 1979-09-21 Labavia IMPROVEMENTS IN SLOWING EQUIPMENT, ESPECIALLY FOR VEHICLES
WO2001097366A1 (en) * 2000-06-16 2001-12-20 Zf Friedrichshafen Ag Remote-controllable hysteresis brake

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418114A1 (en) * 1978-02-22 1979-09-21 Labavia IMPROVEMENTS IN SLOWING EQUIPMENT, ESPECIALLY FOR VEHICLES
WO2001097366A1 (en) * 2000-06-16 2001-12-20 Zf Friedrichshafen Ag Remote-controllable hysteresis brake

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