GB1384001A - Magnet controller - Google Patents

Magnet controller

Info

Publication number
GB1384001A
GB1384001A GB129973A GB129973A GB1384001A GB 1384001 A GB1384001 A GB 1384001A GB 129973 A GB129973 A GB 129973A GB 129973 A GB129973 A GB 129973A GB 1384001 A GB1384001 A GB 1384001A
Authority
GB
United Kingdom
Prior art keywords
current
resistor
reverse
lift
potential
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
GB129973A
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.)
Schneider Electric USA Inc
Original Assignee
Square D Co
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 Square D Co filed Critical Square D Co
Publication of GB1384001A publication Critical patent/GB1384001A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/04—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by magnetic means
    • B66C1/06—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by magnetic means electromagnetic
    • B66C1/08—Circuits therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/08—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists
    • B66C2700/087—Electrical assemblies or electrical control devices for electrically actuated grabs

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Load-Engaging Elements For Cranes (AREA)
GB129973A 1972-01-19 1973-01-10 Magnet controller Expired GB1384001A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21902072A 1972-01-19 1972-01-19

Publications (1)

Publication Number Publication Date
GB1384001A true GB1384001A (en) 1974-02-12

Family

ID=22817478

Family Applications (1)

Application Number Title Priority Date Filing Date
GB129973A Expired GB1384001A (en) 1972-01-19 1973-01-10 Magnet controller

Country Status (5)

Country Link
US (1) US3723825A (enExample)
JP (1) JPS53512B2 (enExample)
AU (1) AU463330B2 (enExample)
CA (1) CA965832A (enExample)
GB (1) GB1384001A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2193890A1 (en) * 2008-12-08 2010-06-09 Johnny Andersson A device for picking articles

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306268A (en) * 1979-10-09 1981-12-15 Square D Company Electromagnet control circuit
US4306269A (en) * 1979-12-07 1981-12-15 Semi-Controls, Inc. Magnetic chuck control system
US4633361A (en) * 1984-10-01 1986-12-30 Walker Magnetics Group, Inc. Chuck control for a workpiece holding electromagnet
US7791856B2 (en) * 2007-02-09 2010-09-07 Ephaugh, Inc. Method and apparatus for moving material
JP4607199B2 (ja) * 2008-03-12 2011-01-05 住友重機械工業株式会社 リフティングマグネット駆動回路

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368119A (en) * 1963-05-01 1968-02-06 Arthur K Littwin Apparatus for demagnetizing
US3579053A (en) * 1968-06-26 1971-05-18 Arthur K Littwin Magnetizing and demagnetizing apparatus and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2193890A1 (en) * 2008-12-08 2010-06-09 Johnny Andersson A device for picking articles
WO2010066568A1 (en) * 2008-12-08 2010-06-17 Johnny Andersson A device for picking articles

Also Published As

Publication number Publication date
JPS53512B2 (enExample) 1978-01-09
CA965832A (en) 1975-04-08
AU463330B2 (en) 1975-07-24
JPS4882356A (enExample) 1973-11-02
US3723825A (en) 1973-03-27
AU5118773A (en) 1974-07-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930108