GB578075A - Improvements in magnetic work holders - Google Patents

Improvements in magnetic work holders

Info

Publication number
GB578075A
GB578075A GB2176844A GB2176844A GB578075A GB 578075 A GB578075 A GB 578075A GB 2176844 A GB2176844 A GB 2176844A GB 2176844 A GB2176844 A GB 2176844A GB 578075 A GB578075 A GB 578075A
Authority
GB
United Kingdom
Prior art keywords
magnetic
work
members
pole
magnets
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
GB2176844A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2176844A priority Critical patent/GB578075A/en
Publication of GB578075A publication Critical patent/GB578075A/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)
  • Electromagnets (AREA)

Abstract

578,075. Magnetic work holders. HITCHCOCK, S. I. Nov. 6, 1944, No. 21768. [Class 60] [Also in Group XXXV] A magnetic work-holder comprises one or more magnets, mounted about an axis perpendicular to its magnetic axis, and fixed lowreluctance armature members in contact with or near a work-supporting surface of spaced magnetic' and non-magnetic members lying parallel to the axis of rotation of the magnet; the armatures are so arranged in spaced rela,- tionship to the magnet's pole faces as to short circuit the magnetic flux when the magnet is in an inoperative position. The work-holder comprises a casing 1 of non-magnetic material and a work supporting surface 2 made up of a series of soft-iron members 7, separated by non- magnetic members 8, extending the length of the surface. The permanent magnets 3, each with a pair of arcuate soft iron pole-pieces 21, are mounted on a shaft 4 and are rotatable through 90 degrees by a handle 14. The laminated armature members 5, of a low reluctance, are of such length as to overlap the pole-pieces when the magnets are in an inoperative position. The pole-piece of the magnets may be of an oppositely tapering formation.
GB2176844A 1944-11-06 1944-11-06 Improvements in magnetic work holders Expired GB578075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2176844A GB578075A (en) 1944-11-06 1944-11-06 Improvements in magnetic work holders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2176844A GB578075A (en) 1944-11-06 1944-11-06 Improvements in magnetic work holders

Publications (1)

Publication Number Publication Date
GB578075A true GB578075A (en) 1946-06-13

Family

ID=10168452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2176844A Expired GB578075A (en) 1944-11-06 1944-11-06 Improvements in magnetic work holders

Country Status (1)

Country Link
GB (1) GB578075A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE911428C (en) * 1950-08-19 1954-05-13 J G Hitzler Schiffswerft Und M Device for raising and lowering steering chairs on ships
DE1152488B (en) * 1961-03-15 1963-08-08 Bosch Gmbh Robert Permanent magnetic clamping device with switchable adhesive force and process for the production of the associated permanent magnet
DE1163994B (en) * 1954-08-12 1964-02-27 Alfred E Herzer Permanently magnetically excited device for clamping ferromagnetic work parts, in particular magnetizable printing form carriers, to the printing unit of printing machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE911428C (en) * 1950-08-19 1954-05-13 J G Hitzler Schiffswerft Und M Device for raising and lowering steering chairs on ships
DE1163994B (en) * 1954-08-12 1964-02-27 Alfred E Herzer Permanently magnetically excited device for clamping ferromagnetic work parts, in particular magnetizable printing form carriers, to the printing unit of printing machines
DE1152488B (en) * 1961-03-15 1963-08-08 Bosch Gmbh Robert Permanent magnetic clamping device with switchable adhesive force and process for the production of the associated permanent magnet

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