GB1401802A - Permanent magnet devices - Google Patents

Permanent magnet devices

Info

Publication number
GB1401802A
GB1401802A GB478472A GB478472A GB1401802A GB 1401802 A GB1401802 A GB 1401802A GB 478472 A GB478472 A GB 478472A GB 478472 A GB478472 A GB 478472A GB 1401802 A GB1401802 A GB 1401802A
Authority
GB
United Kingdom
Prior art keywords
magnets
polepieces
gaps
row
external field
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
GB478472A
Other languages
English (en)
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.)
James Neill Holdings Ltd
Original Assignee
James Neill Holdings 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
Priority to BE794846D priority Critical patent/BE794846A/xx
Application filed by James Neill Holdings Ltd filed Critical James Neill Holdings Ltd
Priority to GB478472A priority patent/GB1401802A/en
Priority to US00326532A priority patent/US3818399A/en
Priority to DK40673AA priority patent/DK140878B/da
Priority to AU51585/73A priority patent/AU471516B2/en
Priority to CA162,698A priority patent/CA999336A/en
Priority to NL7301484.A priority patent/NL159607B/xx
Priority to CH143073A priority patent/CH584961A5/xx
Priority to DE19732304818 priority patent/DE2304818C3/de
Priority to FR7304215A priority patent/FR2216658B1/fr
Priority to IT19919/73A priority patent/IT978717B/it
Priority to JP48013011A priority patent/JPS4891679A/ja
Publication of GB1401802A publication Critical patent/GB1401802A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/15—Devices for holding work using magnetic or electric force acting directly on the work
    • B23Q3/154—Stationary devices
    • B23Q3/1546—Stationary devices using permanent magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Jigs For Machine Tools (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
GB478472A 1972-02-02 1972-02-02 Permanent magnet devices Expired GB1401802A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
BE794846D BE794846A (fr) 1972-02-02 Dispositif a aimantation permanente
GB478472A GB1401802A (en) 1972-02-02 1972-02-02 Permanent magnet devices
US00326532A US3818399A (en) 1972-02-02 1973-01-24 Permanent magnet devices
DK40673AA DK140878B (da) 1972-02-02 1973-01-25 Permanentmagnetisk opspændingsplade for arbejdsstykker.
AU51585/73A AU471516B2 (en) 1972-02-02 1973-01-30 Improvements in or relating to permanent magnet devices
CA162,698A CA999336A (en) 1972-02-02 1973-02-01 Permanent magnet devices
NL7301484.A NL159607B (nl) 1972-02-02 1973-02-01 Schakelbare, permanentmagnetische opspanplaat.
CH143073A CH584961A5 (OSRAM) 1972-02-02 1973-02-01
DE19732304818 DE2304818C3 (de) 1972-02-02 1973-02-01 Schaltbare dauermagnetische Spannplatte
FR7304215A FR2216658B1 (OSRAM) 1972-02-02 1973-02-01
IT19919/73A IT978717B (it) 1972-02-02 1973-02-01 Perfezionamenti relativi ai dispo sitivi a magneti permanenti
JP48013011A JPS4891679A (OSRAM) 1972-02-02 1973-02-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB478472A GB1401802A (en) 1972-02-02 1972-02-02 Permanent magnet devices

Publications (1)

Publication Number Publication Date
GB1401802A true GB1401802A (en) 1975-07-30

Family

ID=9783756

Family Applications (1)

Application Number Title Priority Date Filing Date
GB478472A Expired GB1401802A (en) 1972-02-02 1972-02-02 Permanent magnet devices

Country Status (11)

Country Link
US (1) US3818399A (OSRAM)
JP (1) JPS4891679A (OSRAM)
AU (1) AU471516B2 (OSRAM)
BE (1) BE794846A (OSRAM)
CA (1) CA999336A (OSRAM)
CH (1) CH584961A5 (OSRAM)
DK (1) DK140878B (OSRAM)
FR (1) FR2216658B1 (OSRAM)
GB (1) GB1401802A (OSRAM)
IT (1) IT978717B (OSRAM)
NL (1) NL159607B (OSRAM)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114532A (en) * 1976-10-12 1978-09-19 Dataproducts Corporation Impact printer magnet assembly
DE2646784C3 (de) * 1976-10-16 1980-02-28 Heinrich Dr.-Ing. 4714 Selm Spodig Dauermagnetische Haftplatte
FR2464125A1 (fr) * 1979-08-27 1981-03-06 Braillon P Bloc magnetique a aimants permanents et a dispositif mecanique de commande marche-arret
US4323150A (en) * 1980-05-02 1982-04-06 Fleetwood Systems, Inc. Magnetic rail construction
JPS5959237U (ja) * 1982-10-15 1984-04-18 鐘通工業株式会社 切換可能の永久磁石チヤツク
FR2538288B1 (fr) * 1982-12-28 1986-05-23 Braillon Cie Plateau magnetique a aimants permanents
US4687385A (en) * 1985-04-08 1987-08-18 Milwaukee Electric Tool Corporation Portable hole cutting power tool
JPH0698545B2 (ja) * 1986-10-24 1994-12-07 フジ磁工株式会社 両面永久磁石チヤツク
DE102005021094A1 (de) * 2005-05-06 2006-11-09 B.T. Innovation Gmbh Schaltbare Magnetvorrichtung
CN103221179A (zh) * 2010-09-20 2013-07-24 蔡达光 结合永久磁铁和电磁铁的磁体保持装置
US9649770B1 (en) * 2016-03-28 2017-05-16 Hiwin Technologies Corp. Magnetic holding device with movable magnetic shielding device
US10234424B2 (en) * 2016-12-15 2019-03-19 Caterpillar Inc. Magnetic particle inspection tool with 3D printed magnets

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB874600A (en) * 1958-03-28 1961-08-10 Darwins Ltd Improvements in or relating to magnetic chucks and similar holding devices
FR1220631A (fr) * 1958-04-19 1960-05-25 Hagou Metaalfab N V Mandrin à aimants permanents
US2972485A (en) * 1958-12-03 1961-02-21 Gen Motors Corp Magnetic chuck
US3135899A (en) * 1960-12-19 1964-06-02 Hartley Co Magnetic work-holding table
GB939584A (en) * 1961-01-21 1963-10-16 Neill James & Co Sheffield Ltd Improvements in or relating to permanent magnet chucks and holding devices

Also Published As

Publication number Publication date
AU5158573A (en) 1974-08-01
DE2304818B2 (de) 1975-08-28
NL7301484A (OSRAM) 1973-08-06
US3818399A (en) 1974-06-18
FR2216658A1 (OSRAM) 1974-08-30
AU471516B2 (en) 1976-04-29
JPS4891679A (OSRAM) 1973-11-28
NL159607B (nl) 1979-03-15
IT978717B (it) 1974-09-20
CA999336A (en) 1976-11-02
FR2216658B1 (OSRAM) 1978-03-03
BE794846A (fr) 1973-05-29
DE2304818A1 (de) 1973-08-16
CH584961A5 (OSRAM) 1977-02-15
DK140878B (da) 1979-12-03
DK140878C (OSRAM) 1980-05-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee