GB787926A - Application of strip coating to cathodes - Google Patents

Application of strip coating to cathodes

Info

Publication number
GB787926A
GB787926A GB24913/55A GB2491355A GB787926A GB 787926 A GB787926 A GB 787926A GB 24913/55 A GB24913/55 A GB 24913/55A GB 2491355 A GB2491355 A GB 2491355A GB 787926 A GB787926 A GB 787926A
Authority
GB
United Kingdom
Prior art keywords
coating
cathode
backing member
laid
sleeve
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
GB24913/55A
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products 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
Application filed by Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Publication of GB787926A publication Critical patent/GB787926A/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
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1028—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by bending, drawing or stretch forming sheet to assume shape of configured lamina while in contact therewith
    • Y10T156/1033—Flexible sheet to cylinder lamina
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/11—Methods of delaminating, per se; i.e., separating at bonding face
    • Y10T156/1168—Gripping and pulling work apart during delaminating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24612—Composite web or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24752—Laterally noncoextensive components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2935—Discontinuous or tubular or cellular core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2936—Wound or wrapped core or coating [i.e., spiral or helical]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y10T428/2958—Metal or metal compound in coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

787,926. Cathode materials and processing. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 30, 1955 [Aug. 31, 1954], No. 24913/55. Class 39(1). A cathode is coated with an emissive layer by a transfer of the layer from a flexible backing member on which it is initially formed. The backing member 10 may be thin metal, or calendered paper, and the coating applied by any usual method. It consists of a triple carbonate suspended in a binder, of which a number of alternative compositions are specified. A dual-density coating is preferred, a second, less dense, coating being added to the first. When required for use, the structure is cut up into strips 14, and then into separate leaves 16. The tubular cathode sleeve is wetted in a solution which will dissolve the binder, and then is laid on the leaf, as in Fig. 3. On contact, the coating comes away from the backing member, and wraps round the cathode, as in Fig. 4. Alternatively, the coating may be detached from the backing member first, and then the wetted sleeve laid on it ; or the sleeve may be laid on dry, and the liquid applied subsequently. The coating may be applied directly to a heater wire to form a directly heated cathode, or to the face of a flat button cathode. The coated backing member may be conveniently rolled up for storage, and is also suitable for use in automatic assembly.
GB24913/55A 1954-08-31 1955-08-30 Application of strip coating to cathodes Expired GB787926A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US453235A US2986671A (en) 1954-08-31 1954-08-31 Application of strip coating to cathode

Publications (1)

Publication Number Publication Date
GB787926A true GB787926A (en) 1957-12-18

Family

ID=23799722

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24913/55A Expired GB787926A (en) 1954-08-31 1955-08-30 Application of strip coating to cathodes

Country Status (4)

Country Link
US (1) US2986671A (en)
DE (1) DE1012700B (en)
FR (1) FR1135949A (en)
GB (1) GB787926A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017284A (en) * 1959-06-15 1962-01-16 Sylvania Electric Prod Process of casting film employing 2-(2-aminoethylamine) ethanol as a release agent
US3017281A (en) * 1959-06-19 1962-01-16 Sylvania Electric Prod Formulation for casting pigmented film

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1063717B (en) * 1957-09-20 1959-08-20 Philips Nv Process for covering cathode bodies with a layer of alkaline earth carbonates which are adhered to the cathode body in sheet form
US2998052A (en) * 1958-06-20 1961-08-29 Sylvania Electric Prod Apparatus for applying leaves of electron emissive material to metallic cathode bases
US3028288A (en) * 1959-09-30 1962-04-03 Sylvania Electric Prod Film coating for electron device envelopes
US3212959A (en) * 1961-01-03 1965-10-19 Vitta Corp Electron emissive tapes and method of making
US3223569A (en) * 1961-04-27 1965-12-14 Sylvania Electric Prod Application of films
NL278466A (en) * 1961-05-16
NL279938A (en) * 1961-06-21
US3252043A (en) * 1962-05-14 1966-05-17 Rca Corp Electron discharge device and method of making the same
US3278354A (en) * 1962-06-20 1966-10-11 Sylvania Electric Prod Lamination techniques
US3227591A (en) * 1963-04-26 1966-01-04 Sylvania Electric Prod Film techniques
US3327158A (en) * 1963-06-26 1967-06-20 Sylvania Electric Prod Semi-dispenser cathode with overlying emissive coating
US3330654A (en) * 1964-04-28 1967-07-11 Kennecott Copper Corp Continuous process for producing sheet metal and clad metal
US3402087A (en) * 1964-12-23 1968-09-17 Eastman Kodak Co Coating non-planar surfaces
US3369145A (en) * 1965-04-09 1968-02-13 Wagner Electric Corp Thermionic emissive cathode
US3433632A (en) * 1967-06-30 1969-03-18 Union Carbide Corp Process for producing porous metal bodies
US3662441A (en) * 1970-10-07 1972-05-16 George M Low Method of making dry electrodes
US4251569A (en) * 1975-10-22 1981-02-17 Gte Products Corporation Method of coating arc discharge lamp electrode
US4243455A (en) * 1977-07-29 1981-01-06 Nippon Graphite Industries, Ltd. Method of forming electrode connector for liquid crystal display device
US4197153A (en) * 1979-03-14 1980-04-08 Gte Sylvania Incorporated Attaching self-supporting emissive film to cathode support
US4197152A (en) * 1979-03-14 1980-04-08 Gte Sylvania Incorporated Attaching self-supporting emissive film to cathode support

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1917991A (en) * 1922-09-16 1933-07-11 Westinghouse Electric & Mfg Co Vacuum tube filament structure
US2340971A (en) * 1939-04-25 1944-02-08 Johnson & Johnson Waterproof tape
US2304585A (en) * 1940-06-03 1942-12-08 Jacques S Mcminn Polo mallet head making
US2375808A (en) * 1943-02-16 1945-05-15 Samuel C Miller Electrode for luminous tubes
US2422469A (en) * 1945-07-09 1947-06-17 Edward A Coomes Electron emitting cathode
US2447038A (en) * 1945-10-31 1948-08-17 Raytheon Mfg Co Cathode structure
US2623494A (en) * 1950-03-25 1952-12-30 Scherer Corp R P Capsule banding machine
US2653268A (en) * 1950-05-01 1953-09-22 Beverly D Kumpfer Directly heated cathode structure
US2713383A (en) * 1952-01-28 1955-07-19 Trenton Corp Pipe covering and method of applying the same
US2660547A (en) * 1952-02-08 1953-11-24 Gen Electric Co Ltd Method of forming a particle coating on a metal component of an electric discharge device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017284A (en) * 1959-06-15 1962-01-16 Sylvania Electric Prod Process of casting film employing 2-(2-aminoethylamine) ethanol as a release agent
US3017281A (en) * 1959-06-19 1962-01-16 Sylvania Electric Prod Formulation for casting pigmented film

Also Published As

Publication number Publication date
DE1012700B (en) 1957-07-25
US2986671A (en) 1961-05-30
FR1135949A (en) 1957-05-06

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