US2372901A - Cathode ray tube plate assembly - Google Patents

Cathode ray tube plate assembly Download PDF

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Publication number
US2372901A
US2372901A US450116A US45011642A US2372901A US 2372901 A US2372901 A US 2372901A US 450116 A US450116 A US 450116A US 45011642 A US45011642 A US 45011642A US 2372901 A US2372901 A US 2372901A
Authority
US
United States
Prior art keywords
plates
wires
pairs
cathode ray
pair
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 - Lifetime
Application number
US450116A
Other languages
English (en)
Inventor
Stanley J Koch
Robert E Rutherford
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.)
Allen B du Mont Laboratories Inc
Original Assignee
Allen B du Mont Laboratories Inc
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 BE460347D priority Critical patent/BE460347A/xx
Application filed by Allen B du Mont Laboratories Inc filed Critical Allen B du Mont Laboratories Inc
Priority to US450116A priority patent/US2372901A/en
Priority to GB4050/43A priority patent/GB565374A/en
Application granted granted Critical
Publication of US2372901A publication Critical patent/US2372901A/en
Priority to FR938190D priority patent/FR938190A/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • This invention relates to the assembly of the pairs of deflection plates of cathode ray tubes in such a way that the danger of the pairs of plates becoming displaced with respect to each other is greatly decreased or entirely eliminated.
  • the pairs of plates should be kept exactly at right angles to each other for accuracy of readings.
  • This object is accomplished by this invention by having all of the wires pass through two holders in the form i of discs located on opposite sides of one of said pairs of plates and having one set of wires passing through this pair of plates and attached thereto.
  • the upper pair of plates is fixedly mounted with respect to the upper disc and the other pair is fixedly mounted on wires that pass through the plates and through both discs so that the upper disc and pair of plates are restrained from' turning circumferentially, and even if they should be turned the disc would carry along the other wires to which the other pair of plates is attached so that the pairs would still maintain practically their right angle relationship to each other.
  • Fig. 1 is a plan view of the device
  • Fig. 2 is a side view thereof
  • Fig. 3 is a side View taken at right angles to Fig. 2.
  • reference character I indicates a pair of deflecting plates for the cathode ray
  • character 2 indicates a second pair that is located at right angles to the first pair.
  • Mica discs 3 and 4 are spaced apart, and each is pro-'- vided with a number of holes with eyelets 5 anchored therein through which wires or rods 6 and I extend and are soldered or otherwise attached to the eyelets.
  • the four wires 6 support the plates I
  • the four wires 1 support the plates 2, two wires supporting each plate at some distance from the centers thereof in the usual way.
  • Narrow strips 8 are provided along the lower outer edges of the plates I and are bent around the wires 6 and are attached both to the wires and the plate by soldering or any other convenient way.
  • Similar strips 9 extend along the lower edges of the plates 2 and are attached thereto and to the wires 1 in a similar way.
  • Elongated openings H] are provided through the outwardly extending portions of the plates 2 through which the wires 1 pass.
  • the extensions H are provided on the discs 3 and 4 and have holes l2 therethrough for the purpose of locating thin strips of mica or mica and steel so that the ends thereof rest against the inside wall of the neck of the tube in which the plates are installed so as to keep the same accurately centered in the usual way.
  • a support for pairs of cathode ray deflection plates comprising sets of wires anchored in place above and below one of said pairs of plates, one set of said wires passing through the deflecting surface of one of said pairs of plates and supporting it.
  • a support for pairs of cathode ray deflection plates comprising sets of wires, discs on opposite sides of one of said pairs of plates anchoring said wires in place above and below one of said pairs of plates, one set of said wires passing through the deflecting surfaces of one of said pairs of plates and supporting it and the other set terminating near the lower edge of the other pair of plates and supporting the pair.
  • a support for pairs of cathode ray deflection plates comprising sets of wires with two pairs of wires in each set anchored in place above and below one of said pairs of plates, each plate having a portion parallel to and attached to a pair of said wires and a portion lying at an angle to said pair of wires, said pair of wires extending in a plane which cuts across said last named portion.
  • a support for two pairs of cathode ray tube deflection plates comprising wires and two discs of insulating material, said discs being located near opposite edges of one of said pairs of plates, and one of said discs being located between said pairs of plates.

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
US450116A 1942-07-08 1942-07-08 Cathode ray tube plate assembly Expired - Lifetime US2372901A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE460347D BE460347A (en(2012)) 1942-07-08
US450116A US2372901A (en) 1942-07-08 1942-07-08 Cathode ray tube plate assembly
GB4050/43A GB565374A (en) 1942-07-08 1943-03-12 Cathode-ray tube plate assemblies
FR938190D FR938190A (fr) 1942-07-08 1946-03-28 Tubes à rayons cathodiques et analogues

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US450116A US2372901A (en) 1942-07-08 1942-07-08 Cathode ray tube plate assembly

Publications (1)

Publication Number Publication Date
US2372901A true US2372901A (en) 1945-04-03

Family

ID=23786821

Family Applications (1)

Application Number Title Priority Date Filing Date
US450116A Expired - Lifetime US2372901A (en) 1942-07-08 1942-07-08 Cathode ray tube plate assembly

Country Status (4)

Country Link
US (1) US2372901A (en(2012))
BE (1) BE460347A (en(2012))
FR (1) FR938190A (en(2012))
GB (1) GB565374A (en(2012))

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2461743A (en) * 1946-06-07 1949-02-15 Sylvania Electric Prod Electrode securing means
US2575836A (en) * 1950-08-03 1951-11-20 Du Mont Allen B Lab Inc Deflection plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2461743A (en) * 1946-06-07 1949-02-15 Sylvania Electric Prod Electrode securing means
US2575836A (en) * 1950-08-03 1951-11-20 Du Mont Allen B Lab Inc Deflection plate

Also Published As

Publication number Publication date
GB565374A (en) 1944-11-08
BE460347A (en(2012))
FR938190A (fr) 1948-09-07

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