US1974086A - Mount for electron discharge devices - Google Patents

Mount for electron discharge devices Download PDF

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Publication number
US1974086A
US1974086A US709433A US70943334A US1974086A US 1974086 A US1974086 A US 1974086A US 709433 A US709433 A US 709433A US 70943334 A US70943334 A US 70943334A US 1974086 A US1974086 A US 1974086A
Authority
US
United States
Prior art keywords
side rods
slots
mount
spacer
electron discharge
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
US709433A
Other languages
English (en)
Inventor
Douglas Y Smith
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Priority to US709433A priority Critical patent/US1974086A/en
Application granted granted Critical
Publication of US1974086A publication Critical patent/US1974086A/en
Priority to CH181907D priority patent/CH181907A/de
Priority to AT143776D priority patent/AT143776B/de
Priority to DK54415D priority patent/DK54415C/da
Priority to DER92518D priority patent/DE638277C/de
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
    • 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
    • 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
    • H01J19/50—Spacing members extending to the envelope
    • H01J19/52—Spacing members extending to the envelope without fixed connection between spacing member and envelope
    • 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
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0002—Construction arrangements of electrode systems
    • H01J2893/0005—Fixing of electrodes
    • H01J2893/0009—Electrode system pressing against vessel wall

Definitions

  • My invention relates to electron discharge de vices and more particularly to improved means for firmly and accurately'positioning the electrodes with respect to each other within the .5 envelope of the electron discharge device.
  • threading operation usually requires nearly one half of the total time required to assemble the amount.
  • the principal object of my invention is to provide improved means for firmly and accurately positioning the electrodes of an electron discharge device with respect to each other Within the envelope to facilitate assembly of the electrode mount, and for substantially eliminating the damage to the delicate parts of the mount which frequently attends assembly of mounts constructed in the usual way.
  • Figure 1 is a View in perspective and partly broken away of an electron discharge device embodying one form of my invention.
  • FIG 2 is an enlarged plan view of the mica spacer shown in Figure 1 and made in accordance with my invention.
  • FIG 3 is an enlarged perspective view of a portion of the mount shown in Figure 1 and showing a pair of mica spacers used in accordance with my invention.
  • the electron discharge device shown in Figure 1 has the usual base 10 on a dome type bulb 11 provided with the top cap 12 and the usual mount designated generally by 13. Extending from the top of the mount is the cathode sleeve 5 14, the side rods 15 of the various control grids (not shown) and the side rods 16 of the anode, one of the side rods 15, usually that of the control grid, being connected to the cap 12 at the top of the envelope 11.
  • each spacer has two holes 22, into which the anode side rods 16 extend when the mica spacer is mounted on the anode, and also has along its flat edge a plurality of teeth 23 spaced to provide between them notches or slots into which the cathode 14 and side rods 15 fit rather snugly.
  • the mount in the bulb resilient fingers 24 may be provided on the rim of the spacer to engage the inner wall of the dome of the bulb.
  • the method of mounting and locking the mica spacers on the mount is best shown in Figure 3.
  • the lower spacer 201s put on the plate side rods, which extend through the openings 22, and the cath ode sleeve and the various side rods slid sidewise into the slots between the teeth 23.
  • the upper mica spacer 21 is then put in place on the anode side rods 16, with its toothed edge overlapping the toothed edge of the lower spacer 20, and with the teeth of the two spacers superposed, as shown in Figure 3.
  • the two mica spacers are then locked in assembled position by welding the straps 19 to the anode side rods 16.
  • Each spacer then acts as an insulating member for closing the ends of the slots in the other spacer to lock the electrodes in the slots.
  • threading is eliminated and the cathode together with the anode and grid side rods are locked in the notches between the two overlapping spacers.
  • the upper spacer 21 is shown as of the same shape as the lower spacer 20, it need not be provided with teeth or slots, but may have merely a straight edge overlapping the teeth on the lower mica, to close the end of the slots and so look the side rods in place.
  • mica spacer made :in accordance with my invention is that it can be readily slipped into place intermediate the units of a multi unit tube to space the various electrodes, it being understood that slots would have to be provided for all of the side rods including those on the anode.
  • An electron discharge device havingan envelope, a mount within said envelope andcomprising a plurality of electrodes having side rods, an insulating spacer having an. edge provided with a plurality of slots, said side rods being received in said slots to space said electrodes in fixed relation with respect to each other and an insulating member cooperating with said spacer for closing the ends of said slots to lock said side rods in said slots.
  • An electron discharge device having an envelope, amount within said. envelope and com.-
  • An electron discharge device having an envelope, a mount within saidenvclope comprising a'plurality of electrodes having side rods with their ends in alignment, a pair of substantially semi-circular insulating spacers mounted perpendicularly to said side rods and having slots along their straight edges for receiving the ends of said side rods within the slots, said spacers being positioned with respect to each other to form a substantially circular spacer having along a diameter apertures in which the siderods are locked in position.
  • An electron discharge device having an envelope, a mount within said envelope comprising a plurality of electrodes having side rods with their ends in alignment, a flat semi-circular insulating spacer positioned on one side of, and perpendicular to, said side rods and provided with apertures in which the end side rods are received and a straight edge having slots in which the; remainder of the side rods are received, a second semi-circular fiat insulating spacer positioned on the other side of, and perpendicular to, said side rods above said first spacer and in contact therewith and having apertures in which the end side rods are received and a straight edge having slots in registry with the slots of said first spacer in which the remainder of the side rods are received said spacers being secured to said end side rods to lock the side rods between them in the slots, and resilient fingers on the rims of said semi-circular spacers to resiliently position the electrode'mount Within the envelope.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
US709433A 1934-02-02 1934-02-02 Mount for electron discharge devices Expired - Lifetime US1974086A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US709433A US1974086A (en) 1934-02-02 1934-02-02 Mount for electron discharge devices
CH181907D CH181907A (de) 1934-02-02 1935-01-25 Elektrische Entladungsröhre.
AT143776D AT143776B (de) 1934-02-02 1935-01-29 Elektrische Entladungsröhre.
DK54415D DK54415C (da) 1934-02-02 1935-01-31 Elektrisk Udladningsrør.
DER92518D DE638277C (de) 1934-02-02 1935-02-02 Elektrodenhalterung fuer Elektronenroehren

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US709433A US1974086A (en) 1934-02-02 1934-02-02 Mount for electron discharge devices

Publications (1)

Publication Number Publication Date
US1974086A true US1974086A (en) 1934-09-18

Family

ID=24849830

Family Applications (1)

Application Number Title Priority Date Filing Date
US709433A Expired - Lifetime US1974086A (en) 1934-02-02 1934-02-02 Mount for electron discharge devices

Country Status (5)

Country Link
US (1) US1974086A (da)
AT (1) AT143776B (da)
CH (1) CH181907A (da)
DE (1) DE638277C (da)
DK (1) DK54415C (da)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494853A (en) * 1947-08-27 1950-01-17 Hartford Nat Bank & Trust Co Resilient support and centering arrangement for the electrodes of electric discharge tubes
DE848674C (de) * 1947-10-28 1952-09-08 Philips Nv Elektrische Entladungsroehre
US2777082A (en) * 1953-08-27 1957-01-08 Westinghouse Electric Corp Incandescent lamp
US2835843A (en) * 1955-07-26 1958-05-20 Gen Electric Tube mount support
US2862134A (en) * 1954-10-22 1958-11-25 Westinghouse Electric Corp Electron discharge device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744013C (de) * 1938-12-08 1944-01-07 Siemens Ag Vorrichtung zum Abstuetzen des Elektrodensystems einer Elektronenroehre gegen den Roehrenkolben
DE745632C (de) * 1939-03-11 1944-03-24 Siemens Ag Anordnung zur Abstuetzung des Elektrodensystems einer Elektronenroehre
DE1031896B (de) * 1956-06-25 1958-06-12 Gen Electric Elektrodenaufbau fuer ein Mehrfachroehrensystem
DE1134166B (de) * 1959-03-25 1962-08-02 Ass Elect Ind Befestigung der in einer Ebene liegenden Haltestaebe der Elektroden einer Elektronenroehre

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494853A (en) * 1947-08-27 1950-01-17 Hartford Nat Bank & Trust Co Resilient support and centering arrangement for the electrodes of electric discharge tubes
DE848674C (de) * 1947-10-28 1952-09-08 Philips Nv Elektrische Entladungsroehre
US2777082A (en) * 1953-08-27 1957-01-08 Westinghouse Electric Corp Incandescent lamp
US2862134A (en) * 1954-10-22 1958-11-25 Westinghouse Electric Corp Electron discharge device
US2835843A (en) * 1955-07-26 1958-05-20 Gen Electric Tube mount support

Also Published As

Publication number Publication date
DE638277C (de) 1936-11-12
CH181907A (de) 1936-01-15
DK54415C (da) 1938-03-07
AT143776B (de) 1935-11-25

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