GB770637A - Method of and apparatus for undulating rods for electrode structures - Google Patents

Method of and apparatus for undulating rods for electrode structures

Info

Publication number
GB770637A
GB770637A GB3402454A GB3402454A GB770637A GB 770637 A GB770637 A GB 770637A GB 3402454 A GB3402454 A GB 3402454A GB 3402454 A GB3402454 A GB 3402454A GB 770637 A GB770637 A GB 770637A
Authority
GB
United Kingdom
Prior art keywords
rod
grid
vitreous
interleaved
spreader bar
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
GB3402454A
Inventor
Renn Zaphiropoulos
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.)
Chromatic Television Laboratories Inc
Original Assignee
Chromatic Television 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 US380205A priority Critical patent/US2778161A/en
Application filed by Chromatic Television Laboratories Inc filed Critical Chromatic Television Laboratories Inc
Priority to GB3402454A priority patent/GB770637A/en
Publication of GB770637A publication Critical patent/GB770637A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/0022—Manufacture

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

770,637. Colour television tubes. CHROMATIC TELEVISION LABORATORIES, Inc. Nov. 24, 1954, No. 34024/54. Class 39(1). [Also in Group XI] Undulated or crimped rods strips or ribbons interwoven in fine grids structures e.g. colour focusing and deflecting grids in cathode-ray tubes, act as vibration dampers. A spreader bar is first interleaved between the tautened wires of the grid, alternate strands being displaced oppositely and a vitreous rod or glass ribbon inserted along the edge of the spreader bar. The latter is removed leaving the vitreous rod or ribbon under tension and local application of heat softens the vitreous material and the rod or ribbon assumes a zig-zag shape which is retained on cooling. The strands of the grid are stretched between hooks 25, 33 or anchoring bars 23, 31 respectively the latter being separated by an insulating layer. Glass bars 17 space the wires from the screen base plate 15. After the vitreous rod 37 has been interleaved and the spreader bar withdrawn, the rod is softened by close heating from a heating filament 43 in a ceramic holder 41. The heating block may be caused to travel along the wire at a controlled rate by means of pulleys and an electric motor. Three damping rods may be interleaved in an average size grid. The grid and rod spacings may be non-uniform. Specification 770,636 is referred to.
GB3402454A 1953-09-15 1954-11-24 Method of and apparatus for undulating rods for electrode structures Expired GB770637A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US380205A US2778161A (en) 1953-09-15 1953-09-15 Method of undulating rods for electrode structures
GB3402454A GB770637A (en) 1954-11-24 1954-11-24 Method of and apparatus for undulating rods for electrode structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3402454A GB770637A (en) 1954-11-24 1954-11-24 Method of and apparatus for undulating rods for electrode structures

Publications (1)

Publication Number Publication Date
GB770637A true GB770637A (en) 1957-03-20

Family

ID=10360414

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3402454A Expired GB770637A (en) 1953-09-15 1954-11-24 Method of and apparatus for undulating rods for electrode structures

Country Status (1)

Country Link
GB (1) GB770637A (en)

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