GB682556A - Improvements in or relating to methods and apparatus for mounting and firing getters - Google Patents

Improvements in or relating to methods and apparatus for mounting and firing getters

Info

Publication number
GB682556A
GB682556A GB1680150A GB1680150A GB682556A GB 682556 A GB682556 A GB 682556A GB 1680150 A GB1680150 A GB 1680150A GB 1680150 A GB1680150 A GB 1680150A GB 682556 A GB682556 A GB 682556A
Authority
GB
United Kingdom
Prior art keywords
getters
mounting
fired
wire
getter
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
GB1680150A
Inventor
George Stanley Perciva Freeman
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.)
Cinema Television Ltd
Original Assignee
Cinema Television Ltd
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 Cinema Television Ltd filed Critical Cinema Television Ltd
Publication of GB682556A publication Critical patent/GB682556A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/186—Getter supports
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/183—Composition or manufacture of getters

Abstract

682,556. Discharge apparatus. CINEMA TELEVISION, Ltd. July 4, 1951 [July 5, 1950], No. 16801/50. Class 39(i) A mounting for a plurality of getters adapted to be fired within a vacuum tube by an electrical current fed to it by conduction from an external source is of such construction that getters can be fired in succession at any. desired time intervals by suitable control of the current. The mounting may comprise a ring 1 to which one end of the getter wires 4-9 are connected, the other ends of the getters being connected to a support 3 which is provided with a lead extending through the envelope. A further support provided with a lead extending through the envelope is connected to the ring at point B. The resistance of an arc of the ring between two getter wires is about half the resistance of a getter wire, so that on the application of a current to the two external leads the wire 4 is heated more than the other getter wires; it may be heated until it fires. and then further heated until it fuses. After the wire 4 has fused the wire 5 may be fired and fused in the same manner, and so on until all the getter wires have been fired. The mounting may be arranged in the neck of a cathode ray tube or in a projecting stem mounted on the bulb of a cathode ray tube.
GB1680150A 1950-07-05 1950-07-05 Improvements in or relating to methods and apparatus for mounting and firing getters Expired GB682556A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1680050A GB682555A (en) 1950-07-05 1950-07-05 Improvements in or relating to methods and apparatus for mounting and firing getters

Publications (1)

Publication Number Publication Date
GB682556A true GB682556A (en) 1952-11-12

Family

ID=10083893

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1680150A Expired GB682556A (en) 1950-07-05 1950-07-05 Improvements in or relating to methods and apparatus for mounting and firing getters
GB1680050A Expired GB682555A (en) 1950-07-05 1950-07-05 Improvements in or relating to methods and apparatus for mounting and firing getters

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1680050A Expired GB682555A (en) 1950-07-05 1950-07-05 Improvements in or relating to methods and apparatus for mounting and firing getters

Country Status (3)

Country Link
DE (1) DE907094C (en)
FR (1) FR1037000A (en)
GB (2) GB682556A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4431939A (en) * 1981-07-28 1984-02-14 Rca Corporation Structure and method for eliminating blocked apertures caused by charged particles

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761085A (en) * 1953-10-29 1956-08-28 Westinghouse Electric Corp Sub miniature glow lamp and method of manufacture
FR1163877A (en) * 1955-09-27 1958-10-02 Associated Electrical Ind Comp Improvements to vacuum pumping systems
DE1033797B (en) * 1956-05-15 1958-07-10 Siemens Ag Device for firing several getters in one discharge vessel
DE1052053B (en) * 1958-04-11 1959-03-05 Leybolds Nachfolger E Method and device for extending the uninterrupted service life of getter pumps for high vacuum generation
IT1255439B (en) * 1992-07-17 1995-10-31 Getters Spa NON-EVAPORABLE GETTER PUMP

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4431939A (en) * 1981-07-28 1984-02-14 Rca Corporation Structure and method for eliminating blocked apertures caused by charged particles

Also Published As

Publication number Publication date
DE907094C (en) 1954-03-22
GB682555A (en) 1952-11-12
FR1037000A (en) 1953-09-14

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