US2571723A - Electron discharge tube - Google Patents

Electron discharge tube Download PDF

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Publication number
US2571723A
US2571723A US165406A US16540650A US2571723A US 2571723 A US2571723 A US 2571723A US 165406 A US165406 A US 165406A US 16540650 A US16540650 A US 16540650A US 2571723 A US2571723 A US 2571723A
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US
United States
Prior art keywords
windows
tube
discharge tube
electron discharge
electron
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
US165406A
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English (en)
Inventor
Jonker Johannes Lodewi Hendrik
Adrianus Johannes Wilhel Marie
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.)
Hartford National Bank and Trust Co
Original Assignee
Hartford National Bank and Trust Co
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 Hartford National Bank and Trust Co filed Critical Hartford National Bank and Trust Co
Application granted granted Critical
Publication of US2571723A publication Critical patent/US2571723A/en
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
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers
    • H03K21/08—Output circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K29/00—Pulse counters comprising multi-stable elements, e.g. for ternary scale, for decimal scale; Analogous frequency dividers

Definitions

  • Beam tubes the beam of which is adapted to occupy a plurality of fixed positions and to be held in these positions, may be used for counting pulses successively supplied to a control electrode of the tube. Consequently, such a tube is called counter tube.
  • a tube In most cases sucha tube has 10 fixed positions which are traversed by the beam under the action of the said pulses, the beam rushing from the last position, as a result of a subsequent pulse, into the initial position. Any desired number of pulses may thus be counted by the arrangement in series of a plurality of such tubes which indicate the units, the tens, the hundreds, etc. This is of importance for example, for telephone exchanges, electric calculating machines and the like.
  • one or more collecting electrodes of the beam is or are provided with one or more windows corresponding to the various positions of the beam, which windows become luminescent upon being struck by the beam current and are provided in a staggered manner in the direction of the greatest length of the sectional area of the beam, the dimensions of the windows in the said direction being smaller than the length of the sectional area of the beam.
  • the height of the windows will preferably be chosen to be /3 to /3 of the length of the sectional area of the beam.
  • Fig. 1 shows a side view of a tube according thereto
  • Fig. 2 a cross section of such a tube.
  • A designates the bulb, B the base with contact pins C, and D the anode surrounding the electrode system and externally'covered by a mica plate.
  • the anode D has It] apertures or windows E, and the said mica plate F is metallised on the anode side, which metallisation M has corresponding windows 'E recessed in it.
  • the metallised side M of the mica plate F is furthermore covered with fluorescent material G. If desired, the metallisation M at the areas of the windows may be of such thinness as to be transparent. Thi is advantageous in order to prevent the fluorescent material G and the mica F in the windows from being loaded.
  • the window which is struck by the beam is clearly lighted so that the figure associated with the window concerned may be determined, even at a distance of several metres, from the position of the window, even if the figures provided at the windows were themselves not clearly visible, for example due to darkness. If a plurality of such countertubes are arranged in juxtaposition, in such manner that from the right to the left the tubes indicate the units, tens, hundreds, etc., the figures indicated by the tubes are readily readable.
  • the windows into different shapes or to construct them in a different manner.
  • the surroundings of the apertures provided in the anode may be covered with material which. becomes fluorescent under the action of electrons passing through the apertures and falling back on to the anode at the side of the apertures.
  • the above-described embodiment is simplest and produces the optimum visible effect.
  • the width of the window is preferably about equal to the width of the sectional area of the beam.
  • An electric discharge tube adapted to count a succession of pulses comprising an evacuated envelope and an electron discharge system contained therein and comprising an electron gun for producing a ribbon-like beam of electrons having a given rectangular cross-section, a collector electrode having a plurality of windows therein staggered in the direction of greatest dimension of the cross-section of the beam, the dimensions of each window being smaller than the largest cross-sectional dimension of the beam, a thin light-transparent target electrode on that side of the collector electrode remote' envelope and an electron discharge system contained therein and comprising an electron gun for producing a ribbon-like beam of electrons having a given rectangular cross-section, a collector electrode having a plurality of windows therein staggered in the direction of the greatest dimension of the cross-section of the beam, each of said windows having a largest dimension in the direction of the greatest dimension of the beam which is between one-third and two-thirds the length of the greatest beam dimension, a thin light-transparent target electrode on that side of the collector electrode remote from the electron gun, and portions of the target
  • An electric discharge tube adapted to count a succession of pulses comprising an evacuated envelope and electron discharge system contained therein and comprising an electron gun for producing a ribbon-like beam of electrons having a given rectangular cross-section, a collector electrode having a plurality of windows therein staggered in the direction of the greatest dimension of the beam, each of said windows having a largest dimension in the direction of the greatest dimension of the beam which is smaller than the greatest beam dimension, each of said windows having a configuration corresponding to a given figure representing one of the pulses, a thin light-transparent target electrode on that side of the collector electrode remote from the electron gun, and portions of the target electrode on the side nearest the collector electrode and coincident with the windows covered with a material which luminesces when bombarded by the electron beam.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
US165406A 1949-06-04 1950-06-01 Electron discharge tube Expired - Lifetime US2571723A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL282204X 1949-06-04

Publications (1)

Publication Number Publication Date
US2571723A true US2571723A (en) 1951-10-16

Family

ID=19782336

Family Applications (1)

Application Number Title Priority Date Filing Date
US165406A Expired - Lifetime US2571723A (en) 1949-06-04 1950-06-01 Electron discharge tube

Country Status (7)

Country Link
US (1) US2571723A (sv)
BE (1) BE496113A (sv)
CH (1) CH282204A (sv)
DE (1) DE819435C (sv)
FR (1) FR1019448A (sv)
GB (1) GB669236A (sv)
NL (1) NL146835B (sv)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2642547A (en) * 1950-11-30 1953-06-16 Hartford Nat Bank & Trust Co Device of the kind comprising an electronic tube having a ribbonshaped beam which is deflected and held in different positions
US2733379A (en) * 1950-10-12 1956-01-31 Device of the kind comprising an elec-
US2735956A (en) * 1952-07-07 1956-02-21 Cathode ray apparatus
US2755412A (en) * 1951-07-05 1956-07-17 Ericsson Telefon Ab L M Electron valve
US2778952A (en) * 1954-06-15 1957-01-22 Mithra A G Electronic impulse counting devices
DE1002975B (de) * 1953-01-27 1957-02-21 Reich Robert W Schaltanordnung mit einer Kathodenstrahl-Impulszaehlroehre
US2796549A (en) * 1952-09-12 1957-06-18 Paul E Fiske Electronics matrix solver tube
US2882443A (en) * 1955-01-27 1959-04-14 Roy E Nather High speed pulse counting circuits
US2891185A (en) * 1957-12-31 1959-06-16 Burroughs Corp Indicator tube
US3062984A (en) * 1959-03-05 1962-11-06 Philips Corp Pulse-counting device and counting tubes for such devices
US3089977A (en) * 1959-04-13 1963-05-14 Charles R Moeller Electronic frequency multiplying device
DE1215262B (de) * 1961-10-27 1966-04-28 Litton Industries Inc Kathodenstrahlroehre zur Darstellung von Schriftzeichen
US3356881A (en) * 1965-10-04 1967-12-05 Hughes Aircraft Co Cathode ray tube with a perforated aluminum film graticule overlying the illuminescent layer
US3361920A (en) * 1965-08-20 1968-01-02 Bell Telephone Labor Inc Combination analog and digital display device
US3619694A (en) * 1969-11-18 1971-11-09 Ise Electronics Corp Character-indicating electron tube with fluorescent display structure
US20080231041A1 (en) * 2005-09-08 2008-09-25 Bucchi S.R.L. Device For Connecting Flexible Hoses

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1977398A (en) * 1930-05-31 1934-10-16 Morrison Montford High frequency circuit selector
US2053268A (en) * 1933-01-26 1936-09-08 Davis Merlin Cathode ray tube
US2266671A (en) * 1938-04-22 1941-12-16 Hartford Nat Bank & Trust Co Cathode ray tube multiplex telephony system
US2365476A (en) * 1943-05-11 1944-12-19 Du Mont Allen B Lab Inc Electronic switch and rectangular wave generator
US2465380A (en) * 1944-11-25 1949-03-29 Standard Telephones Cables Ltd Cathode-ray tube pulse separation and demodulation system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1977398A (en) * 1930-05-31 1934-10-16 Morrison Montford High frequency circuit selector
US2053268A (en) * 1933-01-26 1936-09-08 Davis Merlin Cathode ray tube
US2266671A (en) * 1938-04-22 1941-12-16 Hartford Nat Bank & Trust Co Cathode ray tube multiplex telephony system
US2365476A (en) * 1943-05-11 1944-12-19 Du Mont Allen B Lab Inc Electronic switch and rectangular wave generator
US2465380A (en) * 1944-11-25 1949-03-29 Standard Telephones Cables Ltd Cathode-ray tube pulse separation and demodulation system

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733379A (en) * 1950-10-12 1956-01-31 Device of the kind comprising an elec-
US2642547A (en) * 1950-11-30 1953-06-16 Hartford Nat Bank & Trust Co Device of the kind comprising an electronic tube having a ribbonshaped beam which is deflected and held in different positions
US2755412A (en) * 1951-07-05 1956-07-17 Ericsson Telefon Ab L M Electron valve
US2735956A (en) * 1952-07-07 1956-02-21 Cathode ray apparatus
US2796549A (en) * 1952-09-12 1957-06-18 Paul E Fiske Electronics matrix solver tube
DE1002975B (de) * 1953-01-27 1957-02-21 Reich Robert W Schaltanordnung mit einer Kathodenstrahl-Impulszaehlroehre
US2778952A (en) * 1954-06-15 1957-01-22 Mithra A G Electronic impulse counting devices
US2882443A (en) * 1955-01-27 1959-04-14 Roy E Nather High speed pulse counting circuits
US2891185A (en) * 1957-12-31 1959-06-16 Burroughs Corp Indicator tube
US3062984A (en) * 1959-03-05 1962-11-06 Philips Corp Pulse-counting device and counting tubes for such devices
US3089977A (en) * 1959-04-13 1963-05-14 Charles R Moeller Electronic frequency multiplying device
DE1215262B (de) * 1961-10-27 1966-04-28 Litton Industries Inc Kathodenstrahlroehre zur Darstellung von Schriftzeichen
US3361920A (en) * 1965-08-20 1968-01-02 Bell Telephone Labor Inc Combination analog and digital display device
US3356881A (en) * 1965-10-04 1967-12-05 Hughes Aircraft Co Cathode ray tube with a perforated aluminum film graticule overlying the illuminescent layer
US3619694A (en) * 1969-11-18 1971-11-09 Ise Electronics Corp Character-indicating electron tube with fluorescent display structure
US20080231041A1 (en) * 2005-09-08 2008-09-25 Bucchi S.R.L. Device For Connecting Flexible Hoses

Also Published As

Publication number Publication date
GB669236A (en) 1952-04-02
NL146835B (nl)
FR1019448A (fr) 1953-01-21
BE496113A (sv)
DE819435C (de) 1951-10-31
CH282204A (de) 1952-04-15

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