GB648793A - Suspension mounting for the focussing device of a cathode ray tube - Google Patents

Suspension mounting for the focussing device of a cathode ray tube

Info

Publication number
GB648793A
GB648793A GB3633/48A GB363348A GB648793A GB 648793 A GB648793 A GB 648793A GB 3633/48 A GB3633/48 A GB 3633/48A GB 363348 A GB363348 A GB 363348A GB 648793 A GB648793 A GB 648793A
Authority
GB
United Kingdom
Prior art keywords
magnet
bracket
grooves
screws
engage
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
GB3633/48A
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.)
Pye Electronic Products Ltd
Original Assignee
Pye 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 NL666615955A priority Critical patent/NL144716B/en
Priority to BE487122D priority patent/BE487122A/xx
Application filed by Pye Ltd filed Critical Pye Ltd
Priority to GB3633/48A priority patent/GB648793A/en
Priority to US73347A priority patent/US2591820A/en
Priority to FR980905D priority patent/FR980905A/en
Publication of GB648793A publication Critical patent/GB648793A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/82—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements

Landscapes

  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

648,793. Cathode-ray tubes. JACKSON, D., and PYE, Ltd. Feb. 7, 1948, No. 3633. [Class 39 (i)] The annular focusing device is translationally adjustable in two directions which are perpendicular to each other and lie in a plane which is transverse to the axis thereof. A flanged bracket 18 has grooves 17 in which pins 16, attached to the magnet holder 15, can slide so that the permanent magnet 10 can be adjusted in one direction by the screw 22. The magnet 10 is held between clamping magnet rings 11, 12, which are secured by four screws 13a, two or more of which are adapted to slide in further grooves arranged in the plate holder 15 in a direction at right angles to the grooves in the bracket 18. The two screws 22 are held in bosses 20 in lugs or a flange 19 which houses the magnet assembly ; they engage with the magnet, or flat members 24 carried thereby, or with member 12 and adjust the position of the magnet in conjunction with rubber buffers 25, in directions which are respectively horizontal and vertical or inclined thereto at 30 degrees. The bracket 18, which may be mounted on the chassis of a television receiver, also carries a bracket fitted with the rubber ring 30 for supporting the tube neck. An extension 32 of the clamp 11 may house a slidable magnetic member 33 for regulating the focusing gap ; a screw in the member 33 may engage with an arcuate slot in the member 32 to facilitate regulation. Specification 628,541 is referred to in the Provisional Specification.
GB3633/48A 1948-02-07 1948-02-07 Suspension mounting for the focussing device of a cathode ray tube Expired GB648793A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL666615955A NL144716B (en) 1948-02-07 DEVICE FOR REMOVABLE STRETCHING OF TWO LEAD STRAIGHT FURNITURE PIECES.
BE487122D BE487122A (en) 1948-02-07
GB3633/48A GB648793A (en) 1948-02-07 1948-02-07 Suspension mounting for the focussing device of a cathode ray tube
US73347A US2591820A (en) 1948-02-07 1949-01-28 Suspension mounting for the focussing device of cathode-ray tubes
FR980905D FR980905A (en) 1948-02-07 1949-02-05 Mount for the focusing device of an eathodic ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3633/48A GB648793A (en) 1948-02-07 1948-02-07 Suspension mounting for the focussing device of a cathode ray tube

Publications (1)

Publication Number Publication Date
GB648793A true GB648793A (en) 1951-01-10

Family

ID=9761997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3633/48A Expired GB648793A (en) 1948-02-07 1948-02-07 Suspension mounting for the focussing device of a cathode ray tube

Country Status (5)

Country Link
US (1) US2591820A (en)
BE (1) BE487122A (en)
FR (1) FR980905A (en)
GB (1) GB648793A (en)
NL (1) NL144716B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2640868A (en) * 1950-11-04 1953-06-02 All Star Products Inc Magnetic focusing device for cathode-ray tubes
NL165991B (en) * 1950-12-15 Stork Conrad Bv DEVICE FOR GUIDING THIS BODY WHEN LOWERING A BODY HANGING FROM CABS.
US2694782A (en) * 1951-05-19 1954-11-16 All Star Products Inc High efficiency magnetic focusing device for cathode-ray tubes
BE522315A (en) * 1952-08-26
GB731451A (en) * 1952-10-23 1955-06-08 Dennis Henry Covill Improvements in or relating to arrangements for use with cathode ray tubes
BE531679A (en) * 1953-09-21
US2880343A (en) * 1955-12-12 1959-03-31 Glaser Steers Corp Cathode ray tube focusing device
US3629751A (en) * 1969-04-16 1971-12-21 Warwick Electronics Inc Deflection yoke mounting

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2224933A (en) * 1934-02-09 1940-12-17 Loewe Radio Inc Magnetic distortion correcting means for cathode ray tubes
BE424327A (en) * 1936-10-30
GB494839A (en) * 1937-05-01 1938-11-01 British Thomson Houston Co Ltd Improvements in and relating to cathode ray apparatus
GB504802A (en) * 1937-11-01 1939-05-01 Frederick Hermes Nicoll Improvements in or relating to permanent magnet devices for producing axially symmetrical magnetic fields
US2234720A (en) * 1939-08-10 1941-03-11 Gen Electric Electron discharge apparatus
US2431077A (en) * 1943-08-31 1947-11-18 Rca Corp Cathode-ray tube with revolving magnets and adjustable sleeve
US2442975A (en) * 1943-08-31 1948-06-08 Rca Corp Focusing system
US2416687A (en) * 1944-03-30 1947-03-04 Bell Telephone Labor Inc Magnetic focussing device
US2418487A (en) * 1944-03-31 1947-04-08 Bell Telephone Labor Inc Cathode ray magnetic focusing device
US2433682A (en) * 1944-10-31 1947-12-30 Philco Corp Electron focusing apparatus
US2443973A (en) * 1945-01-05 1948-06-22 Avco Mfg Corp Control device for cathode-ray focusing coils
US2443025A (en) * 1945-07-30 1948-06-08 Gen Electric Cathode-ray apparatus
US2456399A (en) * 1945-10-24 1948-12-14 Gen Electric Cathode-ray apparatus
BE469138A (en) * 1945-10-31
US2501516A (en) * 1947-12-31 1950-03-21 Gen Electric Deflecting and focusing device for cathode-ray apparatus
US2521061A (en) * 1948-03-18 1950-09-05 Motorola Inc Combined focus and centering control for cathode ray tubes
US2533687A (en) * 1949-05-27 1950-12-12 Quam Nichols Company Magnetic focusing device
US2533688A (en) * 1950-01-31 1950-12-12 Quam Nichols Company Focusing device
US2533689A (en) * 1950-06-28 1950-12-12 Quam Nichols Company Magnetic focusing device

Also Published As

Publication number Publication date
US2591820A (en) 1952-04-08
NL144716B (en)
FR980905A (en) 1951-05-21
BE487122A (en)

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