US2416318A - Electron discharge device - Google Patents

Electron discharge device Download PDF

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Publication number
US2416318A
US2416318A US454958A US45495842A US2416318A US 2416318 A US2416318 A US 2416318A US 454958 A US454958 A US 454958A US 45495842 A US45495842 A US 45495842A US 2416318 A US2416318 A US 2416318A
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US
United States
Prior art keywords
electron discharge
electrode
discharge device
envelope
base
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 - Lifetime
Application number
US454958A
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English (en)
Inventor
Hotine William
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
Federal Telephone and Radio Corp
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 US454958A priority Critical patent/US2416318A/en
Application granted granted Critical
Publication of US2416318A publication Critical patent/US2416318A/en
Priority to ES0182402A priority patent/ES182402A1/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H01J21/06—Tubes with a single discharge path having electrostatic control means only
    • H01J21/08—Tubes with a single discharge path having electrostatic control means only with movable electrode or electrodes

Definitions

  • This invention relates ⁇ to electron discharge devices and method of ladjusting same and more particularly to such a device whose electrodes may be adjusted for proper inter-electrode capacitance after assembly.
  • An object of this invention is to provide a novel electron discharge device having adjustable electrodes.
  • Another object of this invention is to 'provide a novel metlodA for accurately adjusting the inter-electrode capacitance of electron discharge devices.
  • Still another object of this invention is the provision of a novel stretching tool for adjusting the position of the electrodes within an electron discharge device.
  • a further object of this invention is to provide an electron discharge device in which some of the electrodes may be longitudinally stretched for the purpose of adjusting the inter-electrode capacities.
  • a more specific aspect of the invention lies in the method of longitudinally adjusting the position of the electrodes in an electron discharge device by the insertion of a stretching tool, and stretching such electrodes by this tool until a 4desired predetermined inter-electrode capacity is measured.
  • Fig. 1 is a longitudinal cross-sectional view of an electron discharge device constructed in accordance with the present invention
  • Fig. 2 is a. longitudinal cross-sectional view of a tool which may be used to adjust the electrodes of the device illustrated in Fig. 1;
  • Fig. 3 is a cross-sectional view of the tool illustrated in Fig. 2, taken along the line 3-3;
  • Fig. 4 is a partial cross-sectional view of the device illustrated in Fig. 1, showing the. tool inserted within an electrode for stretchingthe same.
  • the electron discharge device I0 shown in Fig. 1 is of a. generally well-known configuration, and may be a triode having an anode I2, a cathode electrode I4, and a grid I6.
  • a suitable envelope I8 surrounds the anode I2, while an envelope 28 surrounds the Icathode I4, the grid I8 inv this case forming the interconnecting means between the two envelopes.
  • the anod l2 constructed in accordance with the present invention
  • this anode is formed with a head portion 22 in juxtaposition with the grid I6, and a supporting base 24 illustrated as being corrugated in the form of a bellows.
  • 'A collar 26 is preferably attached at the bottom of the base 24 for a, purpose to be described hereinafter.
  • the form of electrode just described is such that while the corrugated thin-walled base 24 is sufficiently strong to yproperly support the anode head 22, at the same time the distance be- I tween the head 22 and grid I6 may be adjusted l by stretching the anode through expansion of the base 24.
  • a tool suitable for stretching an electrode such as anode I2 of Fig. 1, is generally indicated at 30 in Figs. 2 and 3.
  • This preferred form of tool may consist of an A'internal threaded sleeve 32 supporting an externally threaded rod 34 upon one end of which is mounted a preferably cupshaped plunger 36, attached to the rod 34 as by pivot pin or rivet 38.
  • a handle 33 at the other end of the rod may be used to rotate the latter in the sleeve 32 and move the plunger 36 longitudinally relatively thereto.
  • Slidably mounted on the sleeve 32 is a second sleeve 40 which is split 'for the greater part of its length to form ilngers 42 upon whose outer ends are formed dogs 44.
  • the tool 36 may also be used to adjust the capacity between the cathode I4 and the grid I6.
  • Fig.- 1 Lhave shown, by way of example, a cathode structure in which the cathode proper 58 is supported in any suitable manner up'on a head 56 which, in turn, is connected to the n- ⁇ velope through a bowed-out base 60.
  • the bottom of the base 68 is formed withy an integral collar 62 having a suitable abutting surface 64, which will function similarly to the attached collar 26 illustrated in connection with the anode I2.
  • Suitable heater leads 66 can be provided, passing through the transverse portion 68 of the head 56.
  • An electron discharge device including an envelope, a'nrst electrode structure and a second electrode structure mounted in said envelope, said second electrode structure having a head portion positioned adjacent said nrst electrode structure and in capacitativerelationship therewith and a longitudinally extensible .ibase attached to said envelope, and removable adjustable means engaging within said second electrode structure for stretching said extensible base and moving said head toward said rst electrode vstructure until a predetermined capacity between the same has been attained.
  • each of said additional electrodes having a head portion positioned within said envelope and in capacitative relation with the central electrode, and each of said additional electrodes having a longitudinally extensible base attached to an end of the envelope, whereby the distance between the head of each of said additional electrodes and the central electrode may be adjusted by the longitudinal' expansion of its respective base to vary the capacity between the corresponding electrodes.
  • An electron discharge device including an envelope, a rst electrode structure and a second electrode structure mounted in said envelope, said second electrode structure ,having a head portion formed as a hollowcylinder, positioned adjacent said rst electrode structure and 1n capacitative relationship therewith, and a longitudinally extensible base formed with an internal shoulder at its lower end and attached to said envelope, and removable means inserted within said second electrode structure for stretching said extensible base and ⁇ moving saidvhead toward said rst electrode structure until a predetermined 'capacity between the same has been attained, said means including a plurality of radially extensible ngels having dogs abutting longitudinally against said shoulder, and a longitudinally movable plunger engaging the inside of said head for moving the latter relatively to said internal shoulder.
  • An electron discharge device including an envelope, a nrst electrode structure and a second electrode structure mounted in said envelope, said second electrode structure having a head portion stood that these structural details are interchangeable.
  • the integral collar can 4be used in connection with the corrugated base or the inserted collar with the bowed-out base.
  • the cathode and anode structures may be formed alike or differently.

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • Lasers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
US454958A 1942-08-15 1942-08-15 Electron discharge device Expired - Lifetime US2416318A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US454958A US2416318A (en) 1942-08-15 1942-08-15 Electron discharge device
ES0182402A ES182402A1 (es) 1942-08-15 1948-02-16 Mejoras en dispositivos de descarga eléctria y metodos para ajustarlos

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US454958A US2416318A (en) 1942-08-15 1942-08-15 Electron discharge device

Publications (1)

Publication Number Publication Date
US2416318A true US2416318A (en) 1947-02-25

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Application Number Title Priority Date Filing Date
US454958A Expired - Lifetime US2416318A (en) 1942-08-15 1942-08-15 Electron discharge device

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US (1) US2416318A (es)
ES (1) ES182402A1 (es)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467420A (en) * 1943-11-18 1949-04-19 Jr Abraham Binneweg Short-wave adjustable radio tube
US2477903A (en) * 1946-05-10 1949-08-02 Raytheon Mfg Co Mechanical movement
US2506660A (en) * 1946-04-15 1950-05-09 Csf Device for the regulation and centering under vacuum of a filament for a wehnelt cathode
US2709222A (en) * 1944-10-09 1955-05-24 Ernest O Lawrence Methods of and apparatus for separating materials
US2717974A (en) * 1952-04-08 1955-09-13 Wihtol Weltis Disc type electron tube with improved cathode, grid, and anode elements
US2778967A (en) * 1952-05-16 1957-01-22 Bendix Aviat Corp Spark gap
US2831139A (en) * 1955-10-18 1958-04-15 James E Beggs High-frequency electron discharge device having adjustably spaced electrodes
US2917657A (en) * 1956-03-17 1959-12-15 Philips Corp Klystron tube
US3456148A (en) * 1967-02-01 1969-07-15 Gen Electric Multiple surface glass seal for a high voltage discharge device contacting the inner and outer surface and the open end edge of the hollow tubular anode lead
CN111066117A (zh) * 2017-08-21 2020-04-24 万睿视影像有限公司 真空中的电子枪调整和散热

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1559714A (en) * 1919-12-12 1925-11-03 John H Brickenstein Art of releasing electrons in vacuum discharge devices
US1790073A (en) * 1927-07-02 1931-01-27 Pohl Ernst Rontgen tube
US2078449A (en) * 1933-03-11 1937-04-27 Telefunken Gmbh Braun cathode-ray tube
US2108640A (en) * 1936-11-07 1938-02-15 Bell Telephone Labor Inc Electron discharge apparatus
US2167201A (en) * 1935-06-28 1939-07-25 Pintsch Julius Kg Electron tube
US2233263A (en) * 1938-11-30 1941-02-25 Rca Corp Resonant cavity oscillator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1559714A (en) * 1919-12-12 1925-11-03 John H Brickenstein Art of releasing electrons in vacuum discharge devices
US1790073A (en) * 1927-07-02 1931-01-27 Pohl Ernst Rontgen tube
US2078449A (en) * 1933-03-11 1937-04-27 Telefunken Gmbh Braun cathode-ray tube
US2167201A (en) * 1935-06-28 1939-07-25 Pintsch Julius Kg Electron tube
US2108640A (en) * 1936-11-07 1938-02-15 Bell Telephone Labor Inc Electron discharge apparatus
US2233263A (en) * 1938-11-30 1941-02-25 Rca Corp Resonant cavity oscillator

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467420A (en) * 1943-11-18 1949-04-19 Jr Abraham Binneweg Short-wave adjustable radio tube
US2709222A (en) * 1944-10-09 1955-05-24 Ernest O Lawrence Methods of and apparatus for separating materials
US2506660A (en) * 1946-04-15 1950-05-09 Csf Device for the regulation and centering under vacuum of a filament for a wehnelt cathode
US2477903A (en) * 1946-05-10 1949-08-02 Raytheon Mfg Co Mechanical movement
US2717974A (en) * 1952-04-08 1955-09-13 Wihtol Weltis Disc type electron tube with improved cathode, grid, and anode elements
US2778967A (en) * 1952-05-16 1957-01-22 Bendix Aviat Corp Spark gap
US2831139A (en) * 1955-10-18 1958-04-15 James E Beggs High-frequency electron discharge device having adjustably spaced electrodes
US2917657A (en) * 1956-03-17 1959-12-15 Philips Corp Klystron tube
US3456148A (en) * 1967-02-01 1969-07-15 Gen Electric Multiple surface glass seal for a high voltage discharge device contacting the inner and outer surface and the open end edge of the hollow tubular anode lead
CN111066117A (zh) * 2017-08-21 2020-04-24 万睿视影像有限公司 真空中的电子枪调整和散热
EP3673502A4 (en) * 2017-08-21 2021-08-18 Varex Imaging Corporation ELECTRON CANNON ADJUSTMENT AND HEAT DISSIPATION IN VACUUM
CN111066117B (zh) * 2017-08-21 2022-08-23 万睿视影像有限公司 真空中的电子枪调整和散热

Also Published As

Publication number Publication date
ES182402A1 (es) 1948-05-01

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