GB1381468A – Magnetic cylinder construction and method of making same
– Google Patents
GB1381468A – Magnetic cylinder construction and method of making same
– Google Patents
Magnetic cylinder construction and method of making same
Info
Publication number
GB1381468A
GB1381468A
GB2486373A
GB2486373A
GB1381468A
GB 1381468 A
GB1381468 A
GB 1381468A
GB 2486373 A
GB2486373 A
GB 2486373A
GB 2486373 A
GB2486373 A
GB 2486373A
GB 1381468 A
GB1381468 A
GB 1381468A
Authority
GB
United Kingdom
Prior art keywords
polepieces
supports
magnetic
assembly
strip
Prior art date
1972-06-12
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
GB2486373A
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.)
Day International Corp
Original Assignee
Dayco Corp
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.)
1972-06-12
Filing date
1973-05-24
Publication date
1975-01-22
1973-05-24
Application filed by Dayco Corp
filed
Critical
Dayco Corp
1975-01-22
Publication of GB1381468A
publication
Critical
patent/GB1381468A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
B—PERFORMING OPERATIONS; TRANSPORTING
B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
B41F—PRINTING MACHINES OR PRESSES
B41F27/00—Devices for attaching printing elements or formes to supports
B41F27/02—Magnetic devices
Abstract
1381468 Permanent magnets; magnetic holding devices DAYCO CORP 24 May 1973 [12 June 1972] 24863/73 Heading H1P A permanent magnetized cylinder assembly 10 (Fig. 1), e.g. for retaining a pad printing blanket or like unit, containing magnetic materials comprises plural sector shaped magnetic units 11 detachably fixed in parallel disposition about the periphery of an elongated core 12 (Fig. 2), and parallel to the longitudinal axis thereof. The surfaces externally define a smooth right cylinder. Core 12 comprises central member 14 threaded at opposite ends 15 surrounded by a concentric tubular sleeve 16 with nuts 17 retaining end plates 20 bolted thereto at 23; the end assemblies having shafts 22 rotatably supporting the cylinder. Each assembly 11 (Fig. 3), comprises an elongated non-magnetic support strip 30 and interacting non-magnetic supports 31 with cavities 32 enclosing plural permanent mganets 33 therein. Plural magnetic polepieces 34 are fixed alternately with supports 31 and magnets 33 against strip 30 with like poles adjacent to define polepieces of alternating polarity along strip 30. Plural threaded fastening bolts 35 engaging registering holes of supports 31, magnets 33, and sleeve 16 retains each assembly 11 therein. Polepieces 34 are disposed in planes common to the polepieces of the remaining assemblies 11 and perpendicular to the axis, while the permanent magnets are disposed (Fig. 4, not shown), on opposite sides of the polepieces to derive an optimum strength field about the exterior of cylinder 10. Strip 30 is of U-shaped cross-section comprising side arms 41 with locking means comprising longitudinal interior lugs 43 along the side arms engaging cut-outs 42 of the polepieces and supports. External longitudinal rib 45 and groove 47 of assembly 11 engage corresponding ribs and grooves of adjacent identical assemblies (Fig. 5), and the side arms are of wedge-shaped crosssection. The polepieces and supports 31 have trapezoidal cross-sections normal to the axis, and inclined surfaces 51 are coplanar with the outside surfaces of the strip 30, so that each assembly of polepieces and supports defines a segmental annular magnetic ring with rectilinear lines dividing the pairs of adjacent polepieces. The lower edges of the polepieces and magnets engage the bight of the U-shaped strips whose arcuate bottom surfaces engage the outer surface of the core structure, and the assembly is retained as a unit by layers of epoxy resin 60. In assembly, strip 30 is cut to desired lengths defined by the inside distance between nuts 17, placed on a work-table, and polepieces 34, supports 31 and magnets 33 are assembled in sequence; all surfaces being coated with epoxy resin adhesive with like magnet poles adjacent each polepiece. The complete assembly is clamped until the epoxy resin is cured. The core structure may be magnetic or non-magnetic, and the outer surface may be machined or ground down to the required cylindrical dimensions. Strip 30 and supports 31 may be of, e.g. plastic aluminium alloy or stainless steel formed by extrusion, casting or stamping, while bolts 35 may be of aluminium and polepieces 34 of low carbon steel.
GB2486373A
1972-06-12
1973-05-24
Magnetic cylinder construction and method of making same
Expired
GB1381468A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US26190072A
1972-06-12
1972-06-12
Publications (1)
Publication Number
Publication Date
GB1381468A
true
GB1381468A
(en)
1975-01-22
Family
ID=22995366
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB2486373A
Expired
GB1381468A
(en)
1972-06-12
1973-05-24
Magnetic cylinder construction and method of making same
Country Status (3)
Country
Link
DE
(1)
DE2329680A1
(en)
FR
(1)
FR2188269B3
(en)
GB
(1)
GB1381468A
(en)
Cited By (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4831930A
(en)
*
1988-02-01
1989-05-23
Integrated Design Corp.
Magnetic cylinder
US4852490A
(en)
*
1988-06-27
1989-08-01
T. D. Wright, Inc.
Magnetic cylinder having rigid support for magnet cover
US5792262A
(en)
*
1995-11-21
1998-08-11
Bielomatik Leuze Gmbh & Co.
Processing tool for processing ply material or the like
FR2852544A1
(en)
*
2003-03-21
2004-09-24
Michel Henri Labbe
Magnetic roller for applying thin film or pre-pasted panel, has toothed wheel with steel jaws, and two permanent magnet rings allowing definite and constant magnetic attraction force to be applied on thin film or panel
CN108044387A
(en)
*
2017-12-16
2018-05-18
武汉华夏精冲技术有限公司
A kind of locating piece workpiece machining clamp and fine-punching formation method
CN111516372A
(en)
*
2020-05-09
2020-08-11
成都印钞有限公司
Device capable of realizing screen printing of colorful light columns on winding drum and printing machine
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4023267A
(en)
*
1976-05-28
1977-05-17
Walker Magnetics Group, Inc.
Method of fabricating a magnetic chuck
FR2621519B1
(en)
*
1987-10-12
1991-04-26
Buland Jean
ROTARY CUTTING DEVICE
1973
1973-05-24
GB
GB2486373A
patent/GB1381468A/en
not_active
Expired
1973-06-07
FR
FR7320845A
patent/FR2188269B3/fr
not_active
Expired
1973-06-09
DE
DE19732329680
patent/DE2329680A1/en
active
Pending
Cited By (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4831930A
(en)
*
1988-02-01
1989-05-23
Integrated Design Corp.
Magnetic cylinder
US4852490A
(en)
*
1988-06-27
1989-08-01
T. D. Wright, Inc.
Magnetic cylinder having rigid support for magnet cover
US5792262A
(en)
*
1995-11-21
1998-08-11
Bielomatik Leuze Gmbh & Co.
Processing tool for processing ply material or the like
FR2852544A1
(en)
*
2003-03-21
2004-09-24
Michel Henri Labbe
Magnetic roller for applying thin film or pre-pasted panel, has toothed wheel with steel jaws, and two permanent magnet rings allowing definite and constant magnetic attraction force to be applied on thin film or panel
CN108044387A
(en)
*
2017-12-16
2018-05-18
武汉华夏精冲技术有限公司
A kind of locating piece workpiece machining clamp and fine-punching formation method
CN108044387B
(en)
*
2017-12-16
2019-08-23
武汉华夏精冲技术有限公司
A kind of locating piece workpiece machining clamp and fine-punching formation method
CN111516372A
(en)
*
2020-05-09
2020-08-11
成都印钞有限公司
Device capable of realizing screen printing of colorful light columns on winding drum and printing machine
CN111516372B
(en)
*
2020-05-09
2021-12-14
成都印钞有限公司
Device capable of realizing screen printing of colorful light columns on winding drum and printing machine
Also Published As
Publication number
Publication date
FR2188269B3
(en)
1976-05-28
FR2188269A1
(en)
1974-01-18
DE2329680A1
(en)
1974-01-03
Similar Documents
Publication
Publication Date
Title
US3097598A
(en)
1963-07-16
Printing cylinder
US4629921A
(en)
1986-12-16
Dynamoelectric machine rotor
US3721189A
(en)
1973-03-20
Magnetic print cylinder
US4072370A
(en)
1978-02-07
Radial magnetic bearing
US3742852A
(en)
1973-07-03
Magnetic printing cylinder
EP0532769A4
(en)
1994-04-27
ES8105453A1
(en)
1981-06-01
Magnetic suspension bearing.
GB1381468A
(en)
1975-01-22
Magnetic cylinder construction and method of making same
US4481437A
(en)
1984-11-06
Variable flux permanent magnets electromagnetic machine
US4459500A
(en)
1984-07-10
Magnetic field pole assembly
EP0942517B1
(en)
2008-08-20
Transverse flux machine
JPS604663B2
(en)
1985-02-05
Permanent magnet motor with solid non-magnetic armature
EP0291638A3
(en)
1989-04-19
Linear actuator
US4998034A
(en)
1991-03-05
Low speed high torque motor with production method
US3803522A
(en)
1974-04-09
Air gap extending the width of a permanent magnet assembly
GB1251596A
(en)
1971-10-27
JP2685723B2
(en)
1997-12-03
Magnetic screw
CN108365733B
(en)
2023-09-29
Magnetic gear structure capable of improving production efficiency
CN108429430B
(en)
2023-09-29
Modulation type permanent magnet gear
US3675102A
(en)
1972-07-04
Dynamo-electric machine
US3189773A
(en)
1965-06-15
Axial airgap electric rotary device
GB1220145A
(en)
1971-01-20
Improvements in or relating to magnetic couplings
JPH0475449A
(en)
1992-03-10
Method and device for magnetizing permanent magnet piece for pole of electric rotating machine
CN113612366B
(en)
2022-09-23
Slotted cylinder type permanent magnet eddy current coupling for inhibiting torque fluctuation
JPS57171118A
(en)
1982-10-21
Magnetic bearing
Legal Events
Date
Code
Title
Description
1975-06-04
PS
Patent sealed
1977-12-21
PLNP
Patent lapsed through nonpayment of renewal fees
