GB461450A - Improvements in or relating to electric discharge devices - Google Patents

Improvements in or relating to electric discharge devices

Info

Publication number
GB461450A
GB461450A GB3141835A GB3141835A GB461450A GB 461450 A GB461450 A GB 461450A GB 3141835 A GB3141835 A GB 3141835A GB 3141835 A GB3141835 A GB 3141835A GB 461450 A GB461450 A GB 461450A
Authority
GB
United Kingdom
Prior art keywords
shield
ray
cathode
electrostatic
tube
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
GB3141835A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3141835A priority Critical patent/GB461450A/en
Publication of GB461450A publication Critical patent/GB461450A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
    • H04N5/65—Holding-devices for protective discs or for picture masks

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

461,450. Cathode-ray tubes. GENERAL ELECTRIC CO., Ltd., and JESTY, L. C. Nov. 13, 1935, No. 31418. [Class 39 (i)] A cathode-ray tube comprises a conducting electrostatic, shield surrounding and integral with the tube, and a magnetic shield of material of high permeability rigidly fixed to the electrostatic shield and shielding the path of the ray but not completely surrounding it. The magnetic shield material may be a nickel-iron alloy having a permeability greatly exceeding that of iron. As shown, the electrostatic shield 5 is arranged about the tube as described in Specification 425,493 and the magnetic shield 17 is rigidly attached to its inside wall so as to surround the ray in its region of low velocity between the cathode 19 and the final accelerator 20.
GB3141835A 1935-11-13 1935-11-13 Improvements in or relating to electric discharge devices Expired GB461450A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3141835A GB461450A (en) 1935-11-13 1935-11-13 Improvements in or relating to electric discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3141835A GB461450A (en) 1935-11-13 1935-11-13 Improvements in or relating to electric discharge devices

Publications (1)

Publication Number Publication Date
GB461450A true GB461450A (en) 1937-02-17

Family

ID=10322816

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3141835A Expired GB461450A (en) 1935-11-13 1935-11-13 Improvements in or relating to electric discharge devices

Country Status (1)

Country Link
GB (1) GB461450A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440260A (en) * 1945-07-14 1948-04-27 James E Gall Cathode-ray tube mount
US2497078A (en) * 1945-03-15 1950-02-14 James E Gall Tube mount
US2545524A (en) * 1945-08-29 1951-03-20 Rca Corp Schmidt television projection system
DE765083C (en) * 1937-11-04 1953-06-22 Manfred Baron Von Ardenne Electron microscope or scanning electron microscope
US2790105A (en) * 1951-11-01 1957-04-23 Bell Telephone Labor Inc Traveling wave tubes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE765083C (en) * 1937-11-04 1953-06-22 Manfred Baron Von Ardenne Electron microscope or scanning electron microscope
US2497078A (en) * 1945-03-15 1950-02-14 James E Gall Tube mount
US2440260A (en) * 1945-07-14 1948-04-27 James E Gall Cathode-ray tube mount
US2545524A (en) * 1945-08-29 1951-03-20 Rca Corp Schmidt television projection system
US2790105A (en) * 1951-11-01 1957-04-23 Bell Telephone Labor Inc Traveling wave tubes

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