GB1225630A - - Google Patents

Info

Publication number
GB1225630A
GB1225630A GB1225630DA GB1225630A GB 1225630 A GB1225630 A GB 1225630A GB 1225630D A GB1225630D A GB 1225630DA GB 1225630 A GB1225630 A GB 1225630A
Authority
GB
United Kingdom
Prior art keywords
bushes
armatures
clutch
aug
coil
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
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 filed Critical
Publication of GB1225630A publication Critical patent/GB1225630A/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

Landscapes

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

Abstract

1,225,630. Electromagnetic clutches. AUTRONIC DEVELOPMENTS Ltd. 21 Aug., 1968 [25 Aug., 1967], No. 39213/67. Headings F2C and F2L. An electromagnetic clutch comprises axially aligned input and output armatures 2, 3 carried in steel bushes 4, 5 surrounded by a brass former 6, the clutch being operated by a stationary coil 12. The inner ends of the bushes 4, 5 are spaced apart to form an air gap 14 ensuring that the energizing flux is concentrated around the armature peripheries in the region of their radial friction surfaces 15, 16. The inner surfaces of bushes 4, 5 are provided with bearing layers of porous copper filled with a mixture of polytetrafluoroethylene and lead. The adjacent ends of the armatures are bored for the reception of ceramic permanent magnets 24, 25, the poles of which are so arranged that the armatures are mutually repelled when coil 12 is not energized. A fixed ceramic annular brake magnet 26 is provided at one end of the clutch, the other end being closed by a thrust washer 28 having a bearing layer similar to that of the bushes 4, 5.
GB1225630D 1967-08-25 1967-08-25 Expired GB1225630A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3921367 1967-08-25

Publications (1)

Publication Number Publication Date
GB1225630A true GB1225630A (en) 1971-03-17

Family

ID=10408315

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1225630D Expired GB1225630A (en) 1967-08-25 1967-08-25

Country Status (1)

Country Link
GB (1) GB1225630A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees