GB1036741A - Colour television picture tubes - Google Patents

Colour television picture tubes

Info

Publication number
GB1036741A
GB1036741A GB1277/63A GB127763A GB1036741A GB 1036741 A GB1036741 A GB 1036741A GB 1277/63 A GB1277/63 A GB 1277/63A GB 127763 A GB127763 A GB 127763A GB 1036741 A GB1036741 A GB 1036741A
Authority
GB
United Kingdom
Prior art keywords
faceplate
temperature
glass
per
thermal coefficient
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
GB1277/63A
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.)
Rauland Borg Corp
Original Assignee
Rauland Borg 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.)
Filing date
Publication date
Application filed by Rauland Borg Corp filed Critical Rauland Borg Corp
Publication of GB1036741A publication Critical patent/GB1036741A/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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
    • H01J29/073—Mounting arrangements associated with shadow masks

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

<PICT:1036741/C1/1> A moulding machine for moulding the faceplate of a shadow-mask colour television tube and with provision for inserting metal eyelets in the faceplate during the moulding operation, the eyelets being used for the mounting of the shadow mask (see Division H1), comprises a dish section 60, a plunger section 61 and a two-part retaining ring 62, the plunger section being equipped with three compressed-air-operated pistons 68. Each piston 68 has a plunger rod 71 for first forming a recess in a boss portion 44 of the molten glass charge 21 forming the faceplate and then for feeding an eyelet 42 supplied from a magazine 75 into the recess. The eyelet is heated by gas jets 76. After the glass is allowed to cool the faceplate is annealed by raising it to a temperature of about 500 DEG C. and then slowly reducing the temperature at a rate of about 2 DEG C. per minute to a terminal temperature of 350 DEG C. The plunger section of the moulding machine has cooling fins 63 and is water-cooled. In an alternative method of providing metal eyelets in the faceplate blank metal pads, e.g. of stainless steel, are first-sealed into recesses in the faceplate after the faceplate has been moulded and annealed. Recesses are then drilled in the metal pads (see Division B3). The faceplate may be formed of glass having a thermal coefficient of expansion of 10.4 x 10-6 per DEG C., the frit of glass having a thermal coefficient of 10.5 x 10-6 per DEG C. and the steel having a thermal coefficient of 11.4 x 10-6 per DEG C. The frit is fired at a temperature of 440 DEG C.
GB1277/63A 1962-01-11 1963-01-11 Colour television picture tubes Expired GB1036741A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US165476A US3358170A (en) 1962-01-11 1962-01-11 Color television picture tube and mating support members for mounting the color selection mask within the tube

Publications (1)

Publication Number Publication Date
GB1036741A true GB1036741A (en) 1966-07-20

Family

ID=22599053

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1277/63A Expired GB1036741A (en) 1962-01-11 1963-01-11 Colour television picture tubes
GB10835/66A Expired GB1036742A (en) 1962-01-11 1963-01-11 Improvements in or relating to television cathode ray tubes

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB10835/66A Expired GB1036742A (en) 1962-01-11 1963-01-11 Improvements in or relating to television cathode ray tubes

Country Status (2)

Country Link
US (1) US3358170A (en)
GB (2) GB1036741A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449611A (en) * 1966-06-22 1969-06-10 Nat Video Corp Suspension system for color television tube mask
US4002941A (en) * 1966-10-27 1977-01-11 Rca Corporation Shadow mask cathode ray tube shield
DE1512379B2 (en) * 1967-01-13 1970-08-13 Philips Patentverwaltung Gmbh, 2000 Hamburg Device for holding a shadow mask on a front glass frame of a color television picture tube
NL150946B (en) * 1967-06-02 1976-09-15 Philips Nv COLOR TV DISPLAY TUBE.
DE1936177B2 (en) * 1968-07-26 1977-07-14 N V Philips" Gloeilampenfabneken Eindhoven (Niederlande) COLOR TELEVISION TUBE WITH A RECTANGULAR COLOR SELECTION ELECTRODE
US3537161A (en) * 1968-11-19 1970-11-03 Sylvania Electric Prod Process for achieving custom mask to panel spacing in cathode ray tubes
US3621318A (en) * 1970-04-27 1971-11-16 Admiral Corp Color television picture tube with metallic film coating on funnel portion
JPS5540977B2 (en) * 1971-11-01 1980-10-21
NL7316388A (en) * 1973-11-30 1975-06-03 Philips Nv CATHOD BEAM TUBE FOR DISPLAYING COLORED IMAGES.
US4100451A (en) * 1974-08-19 1978-07-11 Zenith Radio Corporation Face panel assembly for a color cathode ray tube
JPS5465471A (en) * 1977-11-04 1979-05-26 Hitachi Ltd Color picture tube
US4289800A (en) * 1979-10-22 1981-09-15 Zenith Radio Corporation Method for providing an electrically conductive bridge in cathode ray tubes
US4547695A (en) * 1983-03-03 1985-10-15 Tektronix, Inc. CRT Shadow mask assembly
JPS6015241Y2 (en) * 1983-05-31 1985-05-14 ソニー株式会社 Installation device for color cathode ray tube electron beam arrival position selection means

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899575A (en) * 1959-08-11 Glass-to-metal seals in cathode-ray tubes
US2023931A (en) * 1928-06-18 1935-12-10 Union Nat Bank Of Pittsburgh Method of mounting tubular electrodes inside the vessels of space discharge devices
US2338507A (en) * 1942-09-12 1944-01-04 Sylvania Electric Prod Method and apparatus for manufacture of electron tubes and the like
NL216226A (en) * 1956-04-17
US3030536A (en) * 1956-04-20 1962-04-17 Owens Illinois Glass Co Face plate for supporting color-control elements in cathode-ray tubes
US2922063A (en) * 1956-11-07 1960-01-19 Sylvania Electric Prod Target assembly for cathode ray tubes
US2951167A (en) * 1958-06-26 1960-08-30 Kimble Glass Co Support means for mounting color-control element in glass portion of cathode-ray tube envelope
US2928968A (en) * 1959-02-27 1960-03-15 Paramount Pictures Corp Cathode-ray tube switching grid support system

Also Published As

Publication number Publication date
GB1036742A (en) 1966-07-20
US3358170A (en) 1967-12-12

Similar Documents

Publication Publication Date Title
GB1036741A (en) Colour television picture tubes
GB1120332A (en) Methods of fabricating and processing cathode ray tubes
GB890230A (en) Improvements in or relating to the production of semi-conductor rods
US4052184A (en) Contouring glass seal edge
US2167431A (en) Method of manufacturing cathode ray tubes
GB1113748A (en) Improvements in or relating to electron sources for an electron gun
GB1011257A (en) Calcium fluoride optical elements and method for making same
US3187404A (en) Method of manufacture of color television picture tube
GB713140A (en) Improvements in or relating to the manufacture of dispenser cathodes
US3460219A (en) Method of making electric bulbs
GB1489644A (en) Method for making a cathode-ray tube
GB1316406A (en) Method of producing homogeneous ingots of metallic alloy
KR900008197B1 (en) Method os sealing the cathode ray tube
KR910005816B1 (en) Establishing method of a filament
GB1046620A (en) Improvements in or relating to multi-colour display cathode-ray tubes
SU1302349A1 (en) Method of thermal treatment of glass envelopes of electronic devices
US3494756A (en) Method of mounting a pin-type electrode in a glass article
GB1491122A (en) Synthetic apparatus and method
JPS5532726A (en) Sealing method for metallic member in glass wall of glass article
FR2229658A1 (en) Glass components with high dimensional accuracy - has cathode supports for X-ray tubes cast in graphite moulds
GB984302A (en) Improvements in or relating to methods of moving-zone heating rod-shaped bodies
KR970029990A (en) How to make shadow mask
JPS6363532A (en) Warm press forming die
GB875399A (en) Electron beam furnace
KR970029976A (en) Blackening method of shadow mask for cathode ray tube