GB194595A - Improvements in or connected with the manufacture of thermionic valves and the like - Google Patents

Improvements in or connected with the manufacture of thermionic valves and the like

Info

Publication number
GB194595A
GB194595A GB1418222A GB1418222A GB194595A GB 194595 A GB194595 A GB 194595A GB 1418222 A GB1418222 A GB 1418222A GB 1418222 A GB1418222 A GB 1418222A GB 194595 A GB194595 A GB 194595A
Authority
GB
United Kingdom
Prior art keywords
fuse
grid
current
bulb
filament
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
GB1418222A
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.)
SYDNEY GEORGE FROST
Original Assignee
SYDNEY GEORGE FROST
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 SYDNEY GEORGE FROST filed Critical SYDNEY GEORGE FROST
Priority to GB1418222A priority Critical patent/GB194595A/en
Publication of GB194595A publication Critical patent/GB194595A/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
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • H01J9/385—Exhausting vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

194,595. Frost, S. G. May 19, 1922. Vacuum tubes. - A fusible element is connected inside the bulb of a thermionic valve or vacuum tube between one or more electrodes or an internal member and an external circuit so that the electrodes or other part may be heated by passage of current during exhaustion of the bulb, the fuse being afterwards ,blown by increasing the current. The internal member may be a metallic or other support, or an insulator associated with a conductor. The fuse 6 may be connected by spot-welding or pinching between an anode 2 and a grid 1 each of which has a single lead 4, 3 respectively; or the fuse may be connected between a separate conductor and an electrode. The filament may be mounted on a grooved insulating sleeve 8 on a cross-wire 9 - secured to the grid which maintains the filament in tension, the sleeve, being heated during exhaustion by current passed through the grid.
GB1418222A 1922-05-19 1922-05-19 Improvements in or connected with the manufacture of thermionic valves and the like Expired GB194595A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1418222A GB194595A (en) 1922-05-19 1922-05-19 Improvements in or connected with the manufacture of thermionic valves and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1418222A GB194595A (en) 1922-05-19 1922-05-19 Improvements in or connected with the manufacture of thermionic valves and the like

Publications (1)

Publication Number Publication Date
GB194595A true GB194595A (en) 1923-03-15

Family

ID=10036482

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1418222A Expired GB194595A (en) 1922-05-19 1922-05-19 Improvements in or connected with the manufacture of thermionic valves and the like

Country Status (1)

Country Link
GB (1) GB194595A (en)

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