[go: up one dir, main page]

GB859887A - Improvements in or relating to methods of sealing mica sheets to metal - Google Patents

Improvements in or relating to methods of sealing mica sheets to metal

Info

Publication number
GB859887A
GB859887A GB3670458A GB3670458A GB859887A GB 859887 A GB859887 A GB 859887A GB 3670458 A GB3670458 A GB 3670458A GB 3670458 A GB3670458 A GB 3670458A GB 859887 A GB859887 A GB 859887A
Authority
GB
United Kingdom
Prior art keywords
waveguide
casing
window
sealing
sheet
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
GB3670458A
Inventor
Donovan Ernest Charles Lambert
Eric Houghton Grover
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB3670458A priority Critical patent/GB859887A/en
Publication of GB859887A publication Critical patent/GB859887A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/20—Seals between parts of vessels
    • H01J5/22—Vacuum-tight joints between parts of vessel
    • H01J5/26—Vacuum-tight joints between parts of vessel between insulating and conductive parts of vessel
    • 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
    • H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
    • 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
    • H01J2893/0002—Construction arrangements of electrode systems
    • H01J2893/0005—Fixing of electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
    • H01J2893/0037—Solid sealing members other than lamp bases
    • H01J2893/0041—Direct connection between insulating and metal elements, in particular via glass material

Landscapes

  • Waveguide Connection Structure (AREA)

Abstract

859,887. Waveguide seals. STANDARD TELEPHONES & CABLES Ltd. Nov. 14, 1958, No. 36703/58. Class 40(8). [Also in Group XL(a)] A mica sheet is sealed to a metal surface by serrating the edge of the sheet and sealing the serrated edge to the metal by means of a glass bead. The sheet may form a sealing window for a waveguide 12 constituting the output of a velocity-modulated beam tube. The window assembly consists of a silver-plated nickel-iron cup 2 having a central depression 3 forming a frame for an aperture with parallel sides and rounded ends. The serrated edge of a mica sheet 5 of similar profile is painted with an aqueous glass paste and placed within the depression. After the paste has dried, the assembly is placed in an oven to fuse the glass which forms a hermetic seal. The window assembly is attached to the waveguide 2 by means of a short cylindrical casing 13 having a hollow stem 14 of rectangular cross-section which fits over and is soldered to the end of the waveguide. The interior surfaces of the waveguide and the casing are covered in the vicinity of the joint by thin sheets 16 of copper foil which are soldered in position. Interposed between the window and the casing is a thin disc 18 of goldplated phosphor-bronze having a central aperture the rim of which is formed into a number of twisted prongs 20. These contact the surfaces on either side and the gold plating forms a golddiffusion seal. After assembly, a hermetic joint is made between the cylindrical surfaces of the cup 2 and the casing 13. The flange of a further waveguide may be arranged to fit within the cup 2.
GB3670458A 1958-11-14 1958-11-14 Improvements in or relating to methods of sealing mica sheets to metal Expired GB859887A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3670458A GB859887A (en) 1958-11-14 1958-11-14 Improvements in or relating to methods of sealing mica sheets to metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3670458A GB859887A (en) 1958-11-14 1958-11-14 Improvements in or relating to methods of sealing mica sheets to metal

Publications (1)

Publication Number Publication Date
GB859887A true GB859887A (en) 1961-01-25

Family

ID=10390502

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3670458A Expired GB859887A (en) 1958-11-14 1958-11-14 Improvements in or relating to methods of sealing mica sheets to metal

Country Status (1)

Country Link
GB (1) GB859887A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4215327A (en) * 1978-08-31 1980-07-29 Nasa Support assembly for cryogenically coolable low-noise choked waveguide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4215327A (en) * 1978-08-31 1980-07-29 Nasa Support assembly for cryogenically coolable low-noise choked waveguide

Similar Documents

Publication Publication Date Title
SE8003376L (en) ELECTROCHEMICAL CELL
GB1445519A (en) Transmission ionization chamber
GB859887A (en) Improvements in or relating to methods of sealing mica sheets to metal
FR2359515A1 (en) Prim. electric cell, esp. a button cell - using glass to metal insulating seal between an electrode and the metal case
US2869086A (en) Window assembly
US2270337A (en) Electrical contact assembly
FR2485816B1 (en)
JPS5780656A (en) Thin battery
GB1012175A (en) Waveguide windows
JPS56132766A (en) Thin sealed battery
GB687297A (en) Seal for electrical discharge devices
GB769935A (en) Improvements in and relating to gas-tight seals between a metal and an insulating material
GB728999A (en) Improvements in or relating to cathode-ray tubes and to methods employed in manufacturing such tubes
GB1168890A (en) A method of Assembling an Electric Discharge Device
GB573232A (en) Improvements in electron discharge devices
GB1478388A (en) Electrolytic capacitor
JPS5549857A (en) Enclosed alkaline battery
GB1247299A (en) Improvements in or relating to electric discharge display tubes
GB553544A (en) Improvements in or relating to arrangements for insulatingly leading electric conductors through metal casings
JPS57211759A (en) Electronic parts and manufacture thereof
JPS5464873A (en) Lighting tube
JPS5780657A (en) Thin battery
JPS5526724A (en) Elastic surface wave device
GB615289A (en) Improvements relating to electric discharge lamps
JPS5682566A (en) Manufacture of battery