GB642749A - Improvements in and relating to electromagnetic clutches - Google Patents

Improvements in and relating to electromagnetic clutches

Info

Publication number
GB642749A
GB642749A GB26940/47A GB2694047A GB642749A GB 642749 A GB642749 A GB 642749A GB 26940/47 A GB26940/47 A GB 26940/47A GB 2694047 A GB2694047 A GB 2694047A GB 642749 A GB642749 A GB 642749A
Authority
GB
United Kingdom
Prior art keywords
sleeve
armature
coil
deenergized
oct
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
GB26940/47A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB642749A publication Critical patent/GB642749A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D67/00—Combinations of couplings and brakes; Combinations of clutches and brakes
    • F16D67/02—Clutch-brake combinations
    • F16D67/06—Clutch-brake combinations electromagnetically actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/10—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
    • F16D27/108—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members
    • F16D27/112—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members with flat friction surfaces, e.g. discs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

642,749. Friction clutches. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 7, 1947, No. 26940. Convention date, Oct. 10, 1946. [Class 80(ii)] [Also in Group XXXV] An electromagnetic clutch has a stationary coil in a housing with a hub surrounding a driving sleeve with an end face extending beyond the hub and co-operating with an armature which is axially movable on its shaft so that it can be spring-urged away from the sleeve when the coil is deenergized into engagement with a braking surface the armature and sleeve being slotted to reduce eddy currents. As shown, the driving member is the slotted cup 12 on the end of the sleeve 7 and the armature 18 is moved axially on the shaft 14 by spring 21 into engagement with a braking surface 22 on the housing 1 when the coil 25 is deenergized. The sleeve 7 and the armature 18 are separated from the fixed parts by small air gaps 11, 27, respectively.
GB26940/47A 1946-10-10 1947-10-07 Improvements in and relating to electromagnetic clutches Expired GB642749A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US642749XA 1946-10-10 1946-10-10

Publications (1)

Publication Number Publication Date
GB642749A true GB642749A (en) 1950-09-13

Family

ID=22054781

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26940/47A Expired GB642749A (en) 1946-10-10 1947-10-07 Improvements in and relating to electromagnetic clutches

Country Status (1)

Country Link
GB (1) GB642749A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840205A (en) * 1954-11-01 1958-06-24 Air Associates Inc Electromagnetic clutch and brake
GB2139424A (en) * 1983-04-25 1984-11-07 Micro Component Technology Inc Magnetic Actuator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840205A (en) * 1954-11-01 1958-06-24 Air Associates Inc Electromagnetic clutch and brake
GB2139424A (en) * 1983-04-25 1984-11-07 Micro Component Technology Inc Magnetic Actuator

Similar Documents

Publication Publication Date Title
GB1277868A (en) Electromagnetically operated friction coupling or clutch
GB611809A (en) Improvements in or relating to magnetic braking devices for electric induction motors
GB642749A (en) Improvements in and relating to electromagnetic clutches
US2942710A (en) Clutch device
GB1127896A (en) Electromagnetic clutch
GB1366978A (en) Electromagnetic clutches
GB708557A (en) Improvements in and relating to permanent magnet clutches or brakes
GB1000585A (en) Improvements relating to magnetic couplings for torque transmission
GB734449A (en) Improvements relating to magnetic couplings
GB726487A (en) Improvements in electromagnetic clutches
GB629311A (en) Improvements in or relating to electro-magnetic clutches, particularly for motor vehicles
GB594906A (en) Electro-magnetic friction clutch
GB389898A (en) Improvements in or relating to permanent magnets
GB591091A (en) Improvements in or relating to electro-magnetic clutches and brakes
GB650174A (en) An electromagnetically-operated friction clutch
GB693955A (en) Improvements in and relating to permanent magnet clutch-brakes
GB586576A (en) Improvements in electric eddy current clutches
GB887056A (en) Wear adjuster for magnetic friction devices
GB627087A (en) A shaft synchronizing and coupling system
GB647832A (en) Improved electro magnetic brake or clutch
GB724499A (en) Improvements in a magnet ring for an electromagnetic friction device
GB607038A (en) Improvements in or relating to electric relays
GB966750A (en) Improvements in or relating to electro-magnetic clutches
GB636267A (en) Improvements in electro-magnetic friction clutches
GB987085A (en) Improvements in or relating to sewing machines