GB551790A - Improvements in or relating to electro magnets and solenoids and their operation - Google Patents

Improvements in or relating to electro magnets and solenoids and their operation

Info

Publication number
GB551790A
GB551790A GB997841A GB997841A GB551790A GB 551790 A GB551790 A GB 551790A GB 997841 A GB997841 A GB 997841A GB 997841 A GB997841 A GB 997841A GB 551790 A GB551790 A GB 551790A
Authority
GB
United Kingdom
Prior art keywords
recesses
projections
solenoids
relating
take
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
GB997841A
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.)
LEON LOUIS EDWIN HERCKLEBOUT
Dunlop Rubber Co Ltd
Original Assignee
LEON LOUIS EDWIN HERCKLEBOUT
Dunlop Rubber 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 LEON LOUIS EDWIN HERCKLEBOUT, Dunlop Rubber Co Ltd filed Critical LEON LOUIS EDWIN HERCKLEBOUT
Priority to GB997841A priority Critical patent/GB551790A/en
Publication of GB551790A publication Critical patent/GB551790A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01F7/13—Electromagnets; Actuators including electromagnets with armatures characterised by pulling-force characteristics

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)

Abstract

551,790. Electromagnets and solenoids. DUNLOP RUBBER CO., Ltd., TREVASKIS, H., and HERCKLEBOUT, L. L. E. Aug. 6, 1941, No. 9978. [Class 35] To improve the full characteristic of a solenoid core 5 co-operating with a fixed magnetic stop 4 the adjacent ends of the core and stop are formed with a plurality of interengaging and complementary projections and recesses 8, 10. These may take the form of concentric conical projections and recesses, the working stroke of the plunger being such as to take the projections. home into the recesses. The projections and recesses may be of truncated cone form, as shown, and, instead of being concentric, they may be transverse and in this form they may be rectangular instead of conical.
GB997841A 1941-08-06 1941-08-06 Improvements in or relating to electro magnets and solenoids and their operation Expired GB551790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB997841A GB551790A (en) 1941-08-06 1941-08-06 Improvements in or relating to electro magnets and solenoids and their operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB997841A GB551790A (en) 1941-08-06 1941-08-06 Improvements in or relating to electro magnets and solenoids and their operation

Publications (1)

Publication Number Publication Date
GB551790A true GB551790A (en) 1943-03-10

Family

ID=9882285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB997841A Expired GB551790A (en) 1941-08-06 1941-08-06 Improvements in or relating to electro magnets and solenoids and their operation

Country Status (1)

Country Link
GB (1) GB551790A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530180A (en) * 1945-11-13 1950-11-14 Eaton Mfg Co Magnetic clutch
US2869048A (en) * 1952-05-22 1959-01-13 Ultra Electric Inc Electromagnetic device
US2930945A (en) * 1956-08-16 1960-03-29 Vickers Inc Power transmission
DE2508442A1 (en) * 1975-02-27 1976-10-21 Simms Group Res Dev Ltd Electromagnetic system with relative motion between branches - has central core with threaded end and cup shaped section limiting displacement
DE3213009A1 (en) * 1982-04-07 1983-10-20 Robert Bosch Gmbh, 7000 Stuttgart Electromagnet
US4569504A (en) * 1983-05-20 1986-02-11 Doyle Michael J Solenoid
EP0349642A1 (en) * 1987-03-14 1990-01-10 Techno Excel Kabushiki Kaisha Displacement sensor
EP0883146A2 (en) † 1997-03-06 1998-12-09 ABBPATENT GmbH Permanent magnetic kind of actuation for a switch
US7876187B2 (en) 2006-02-17 2011-01-25 Rolls-Royce Plc Actuator

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530180A (en) * 1945-11-13 1950-11-14 Eaton Mfg Co Magnetic clutch
US2869048A (en) * 1952-05-22 1959-01-13 Ultra Electric Inc Electromagnetic device
US2930945A (en) * 1956-08-16 1960-03-29 Vickers Inc Power transmission
DE2508442A1 (en) * 1975-02-27 1976-10-21 Simms Group Res Dev Ltd Electromagnetic system with relative motion between branches - has central core with threaded end and cup shaped section limiting displacement
DE3213009A1 (en) * 1982-04-07 1983-10-20 Robert Bosch Gmbh, 7000 Stuttgart Electromagnet
US4569504A (en) * 1983-05-20 1986-02-11 Doyle Michael J Solenoid
EP0349642A1 (en) * 1987-03-14 1990-01-10 Techno Excel Kabushiki Kaisha Displacement sensor
EP0349642A4 (en) * 1987-03-14 1990-09-05 Kanbayashi Seisakusho Kk Solenoid device
EP0883146A2 (en) † 1997-03-06 1998-12-09 ABBPATENT GmbH Permanent magnetic kind of actuation for a switch
EP0883146B2 (en) † 1997-03-06 2011-08-03 Abb Ag Permanent magnetic kind of actuation for a switch
US7876187B2 (en) 2006-02-17 2011-01-25 Rolls-Royce Plc Actuator
EP1821394A3 (en) * 2006-02-17 2012-11-28 Rolls-Royce plc Actuator

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