GB675379A - Improvements in or relating to magnetic couplings - Google Patents

Improvements in or relating to magnetic couplings

Info

Publication number
GB675379A
GB675379A GB86250A GB86250A GB675379A GB 675379 A GB675379 A GB 675379A GB 86250 A GB86250 A GB 86250A GB 86250 A GB86250 A GB 86250A GB 675379 A GB675379 A GB 675379A
Authority
GB
United Kingdom
Prior art keywords
permanent magnets
mild steel
coupling
show
driving
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
GB86250A
Inventor
William Leslie Bower
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.)
NEILL JAMES & CO SHEFFIELD Ltd
James Neill and Co Ltd Sheffield
Original Assignee
NEILL JAMES & CO SHEFFIELD Ltd
James Neill and Co Ltd Sheffield
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 NEILL JAMES & CO SHEFFIELD Ltd, James Neill and Co Ltd Sheffield filed Critical NEILL JAMES & CO SHEFFIELD Ltd
Priority to GB86250A priority Critical patent/GB675379A/en
Publication of GB675379A publication Critical patent/GB675379A/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
    • H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
    • H02K49/104—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
    • H02K49/106—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with a radial air gap
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
    • H02K49/104—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
    • H02K49/108—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with an axial air gap
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs

Abstract

675,379. Magnetic couplings. NEILL & CO. (SHEFFIELD), Ltd., J. Jan. 15, 1951 [Jan. 13, 1950], No. 862/50. Class 35. A magnetic coupling has at least the driving or driven member arranged to carry one or more permanent magnets embedded at the periphery of a mild steel core but separated from the latter by radial slots in which non-magnetic material is inserted. Figs. 1, 2 show the two member cores 2, 6 carrying permanent magnets 4, 8, respectively separated from their cores by radial slots 3, 5 in which non-magnetic material is inserted. Figs. 4, 5 show an arrangement for oscillatory motion wherein each of the coupling members comprises a quadrant plate 11 of mild steel carrying permanent magnets 13 keyed by white metal or aluminium between projections 12. In another modification, the coupling members are arranged for reciprocating motion. Figs. 8, 9 show an eddy-current coupler wherein one member comprises a circular mild steel plate 21 carrying a copper sheet 22 in which eddy currents are induced when the other member rotates. The latter comprises a mild steel plate 18 on the driving-shaft having polepieces 19 placed between permanent magnets 20 and keyed as described above. In another arrangement, the eddy currents are induced in a tubular member which can rotate between two sets of permanent magnets carried by two concentric cores forming the driving-member of the coupling. In a further modification, a coupling combines a slip and synchronous characteristics.
GB86250A 1950-01-13 1950-01-13 Improvements in or relating to magnetic couplings Expired GB675379A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB86250A GB675379A (en) 1950-01-13 1950-01-13 Improvements in or relating to magnetic couplings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB86250A GB675379A (en) 1950-01-13 1950-01-13 Improvements in or relating to magnetic couplings

Publications (1)

Publication Number Publication Date
GB675379A true GB675379A (en) 1952-07-09

Family

ID=9711783

Family Applications (1)

Application Number Title Priority Date Filing Date
GB86250A Expired GB675379A (en) 1950-01-13 1950-01-13 Improvements in or relating to magnetic couplings

Country Status (1)

Country Link
GB (1) GB675379A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE945183C (en) * 1953-08-18 1956-07-05 Licentia Gmbh Mixer with power transmission to the mixer knife or the comminuting tool through magnetic and / or electric fields
DE947395C (en) * 1954-02-18 1956-08-16 Siemens Ag Magnetic system for transmitting a rotating force through a non-magnetizable wall connected between the magnets
DE1013292B (en) * 1955-07-02 1957-08-08 Hans Richter Steam trap
US2824244A (en) * 1955-05-16 1958-02-18 Tormag Transmissions Ltd Magnetic brake controlled magnetic couplings
DE1104537B (en) * 1958-03-04 1961-04-13 Veikko Kalervo Havanto Device designed for cooling milk cans
DE1121192B (en) * 1957-12-17 1962-01-04 Westinghouse Electric Corp Magnetic coupling
US3333127A (en) * 1965-12-27 1967-07-25 Bergstrom Mfg Company Magnetic drive or coupling
DE1260603B (en) * 1963-09-04 1968-02-08 Electronique & Automatisme Sa Permanent magnetic coupling with axial air gap
US4937483A (en) * 1987-11-18 1990-06-26 Tokyo-Buhin Kogyo Co., Ltd. Eddy-current brake
WO2009087409A1 (en) * 2008-01-11 2009-07-16 Magnomatics Limited Drives for sealed systems
FR2937390A1 (en) * 2008-10-16 2010-04-23 Valeo Equip Electr Moteur Movement transmitting element e.g. pulley, for e.g. alterno-starter of motor vehicle, has primary and secondary magnets respectively carried by coaxial parts, where primary magnet has polarity opposite to that of secondary magnet
US20130049367A1 (en) * 2011-08-30 2013-02-28 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Power generation apparatus
CN106936290A (en) * 2017-05-09 2017-07-07 哈尔滨理工大学 A kind of permanent-magnet coupler for improving conductor disc
CN108527463A (en) * 2018-04-10 2018-09-14 舒可士（深圳）科技有限公司 Hair clipper transmission mechanism
WO2022258948A1 (en) * 2021-06-07 2022-12-15 Magnomatics Limited Magnetically geared apparatus and rotor

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE945183C (en) * 1953-08-18 1956-07-05 Licentia Gmbh Mixer with power transmission to the mixer knife or the comminuting tool through magnetic and / or electric fields
DE947395C (en) * 1954-02-18 1956-08-16 Siemens Ag Magnetic system for transmitting a rotating force through a non-magnetizable wall connected between the magnets
US2824244A (en) * 1955-05-16 1958-02-18 Tormag Transmissions Ltd Magnetic brake controlled magnetic couplings
DE1013292B (en) * 1955-07-02 1957-08-08 Hans Richter Steam trap
DE1121192B (en) * 1957-12-17 1962-01-04 Westinghouse Electric Corp Magnetic coupling
DE1104537B (en) * 1958-03-04 1961-04-13 Veikko Kalervo Havanto Device designed for cooling milk cans
DE1260603B (en) * 1963-09-04 1968-02-08 Electronique & Automatisme Sa Permanent magnetic coupling with axial air gap
US3333127A (en) * 1965-12-27 1967-07-25 Bergstrom Mfg Company Magnetic drive or coupling
US4937483A (en) * 1987-11-18 1990-06-26 Tokyo-Buhin Kogyo Co., Ltd. Eddy-current brake
WO2009087409A1 (en) * 2008-01-11 2009-07-16 Magnomatics Limited Drives for sealed systems
GB2457226B (en) * 2008-01-11 2013-01-09 Magnomatics Ltd Drives for sealed systems
FR2937390A1 (en) * 2008-10-16 2010-04-23 Valeo Equip Electr Moteur Movement transmitting element e.g. pulley, for e.g. alterno-starter of motor vehicle, has primary and secondary magnets respectively carried by coaxial parts, where primary magnet has polarity opposite to that of secondary magnet
US20130049367A1 (en) * 2011-08-30 2013-02-28 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Power generation apparatus
US8836191B2 (en) * 2011-08-30 2014-09-16 Kobe Steel, Ltd. Power generation apparatus
CN106936290A (en) * 2017-05-09 2017-07-07 哈尔滨理工大学 A kind of permanent-magnet coupler for improving conductor disc
CN108527463A (en) * 2018-04-10 2018-09-14 舒可士（深圳）科技有限公司 Hair clipper transmission mechanism
WO2022258948A1 (en) * 2021-06-07 2022-12-15 Magnomatics Limited Magnetically geared apparatus and rotor

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