US2012129A - Nonresonant supporting device - Google Patents

Nonresonant supporting device Download PDF

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Publication number
US2012129A
US2012129A US326169A US32616928A US2012129A US 2012129 A US2012129 A US 2012129A US 326169 A US326169 A US 326169A US 32616928 A US32616928 A US 32616928A US 2012129 A US2012129 A US 2012129A
Authority
US
United States
Prior art keywords
electrodes
filament
wires
envelop
electrode
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
US326169A
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English (en)
Inventor
Albert W Hull
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.)
General Electric Co
Original Assignee
General Electric 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 General Electric Co filed Critical General Electric Co
Priority to US326169A priority Critical patent/US2012129A/en
Priority to GB37317/29A priority patent/GB344907A/en
Priority to FR686423D priority patent/FR686423A/fr
Priority to NL49425A priority patent/NL26209C/xx
Application granted granted Critical
Publication of US2012129A publication Critical patent/US2012129A/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
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/18—Supports; Vibration-damping arrangements
    • 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

Definitions

  • V fleeiai' s. ('o1.2'50;-'2 7.5 r
  • the present invention relatesbroadly to d vices for supporting objects subject to vibration and fordraining, off the vibratory :energy;
  • the invention has particular application to thermi- ,5 onic apparatus whereinfthe vibratory movement of the electrodes; gives rise to microphonic noises in the output circuit.
  • InWhree-electrode apparatus which usually comprises a filament, grid and anode, the heated memberv is suspended'in a manner such as to allow for expansion under operating conditions.
  • the filament support may take the fQIm-Of a coiled spring in thelarger apparatus but in the I small receiver types of tubes, it has been found sufiicient from a practicalstandpointtoprovide rigid supports; however,'in the case of the small tubes the filament, whenljleatedselongates and may tend to vibrate or sway slightly toward the changes in position of the filament relative to the.
  • Fig. 1 is an elevational view in perspective of a thermionic discharge'device. equipped with the improved electrode support Fig. 2; illustrates a modified form. of electrode unit and supporting member, while Fig.3 shows'theimprovedsup- 10 porting cable in;the process or making.
  • I have indicated at I an evacuated envelop containing a filamentary oath: ode 2,a'helical grid'3, and an anode 4, the two latter members surrounding the filarnent in con- .15 I
  • the anode is formed preferably of a curved plate member with terminal'fianges i between which'is clamped anuprightsup'port rod 5 secured in the press at the lower end and extended to serve as a leading-in conductor.
  • the 9 upper end of the rod carries a horizontally dis-t posed member, one end of which is affixed in a block 6 of insulating material.
  • the block is also supported by a wire attached to upright l'which" is spot-welded to the convolutions of'the grid 5 and which extends through the press'to form another lead ing-in conductor.
  • This 7 member takes theform of a. stranded cable or red comprising a plurality of parallel wires 9, specifically shown as six and preferably constituted of ametaL-such'a's iron or copper, bound 5 tightly togetherbya Wire l9 preferably of the same material, as seen moreclearly in Fig.3.
  • the lengthof cable may be finished off by securing'together, by welding for example, the last tilever effect for clearing the electrode structure.
  • the rod 8 may be considered mechanically to isolate the electrodesfrom jar arising within or without the envelop.
  • Fig 2 shows anelectrode organization suspended entirely between lengths of the improved support. This modification is similar to that described with respect to Fig. 1 except there are provided a short length of cable l3 attachedto the overhanging portion of themain stem 8 and another short length M, which supports the lower insulation block I5. These short pieces preferably are of smaller diameter than the main upright 8 and may be constructed of a fewer number of wires or perhaps of the same number of wires of smaller gage.
  • the block iii- carries the lower end of the electrodes by means of suitable connections.
  • the lead wires l6 and ii for the grid and anode respectively are constituted of relatively small wires so as to minimize I the amount of material of the microphonic sort necessary, also to provide maximumfiexibility so.as not to disturb or curtail the damping function of the aperiodic supports.
  • the filament may be energized by current passing through the cables Band l4.
  • the electrode structure is preferably positioned in the envelop (not shown) by means ofmetallic band 18 clamped about thestem to form a holder for the upright member 8.
  • a transverse support l9 intermediate the ends of the vertical portion, one end of which is affixed in the press and the other end. having a hook-like extremity which. grasps the. upright in the manner shown. It is apparent that the entire electrode structure is supported, top and bottom, by an aperiodic member forming a-structure which completely isolates the electrodes, particularly the filament, from vibrations that impinge on the glass envelop.
  • vibratory disturbances are to be dissipated particularly-where the energy to be drained is of relatively large amplitude.
  • a cable such as described there may be mentioned its employment as an airplane strut, wire rope or cord by which objects in general are suspended or supported the airplane and objects being susceptible to vibration of an-excessive character.
  • A' thermionic device comprising an envelop containing a plurality of cooperative electrodes and means within the envelop for supporting the electrodes, said means comprising a substantially non-microphonic metallic member, said mem ber being constituted of superimposed wires.
  • a thermionic'device comprising an envelop containing a plurality ofcooperative electrodes andmeans for supporting the electrodes within the "envelop, said means comprising a multistrand cable designed to be substantially nonmicrophonic at all frequencies.
  • a non-microphonic electrode support comprising a plurality of parallel metallic wires bound together by a helical member.
  • a thermionic device comprising. an envelop containing a plurality of cooperative electrodes, including a filament and means fordraining vibrational energy from said filament, said means comprising a plurality of wires in contact with one another and having a relative movement therebetween.
  • Electrode structure for a thermionic device comprising an electrode supported at. each end within the device .by a substantially aperiodic member, said member consisting of a plurality of wires arranged'to allow a rucbing contact be tween one another, i I I 6.
  • An electrode structurejfor electric discharge devices said structure including faplurality of electrodes rigidly secured together in spaced relation, and meansfor supporting the structure as a whole within the device, saidmeans comprising a pair of substantially non-.microphonic members secured respectively to opposite. ends of thestructure, each member consisting ofa plurality of wires which contact with one another alongtheir respective lengths and are bound together.
  • a thermionic. device comprising an envelop containing an electrode organization, blocks of insulating material positioned at each end of the electrode organization, rigid members connectingsaid blocks to the electrodes, and means for supporting saidblocks within the envelop, said means being substantially aperiodic to all frequencies and comprising a plurality of wires which'contact with one another and have a relative movement therebetween.
  • a thermionic device comprising an envelop terminating in a reentrant stem andcontaining an electrode, organization, blocks of insulating material positioned atfeach endof the electrode dampening member'of smaller dimension which organization and arranged" at different distances from said stem, rigid members connecting said blocks to the electrodes, supports between each of saidblocks and the reentrantstem, the support for the block positioned remote from the mension being connected to the remotelypositioned block, the support for the block nearer the'stem being constituted of a vibration-dampening member having a cross-sectional dimen sion substantially the same as the vibrationis secured to the other of said blocks.
  • a thermionic device comprising an envelop containinga' plurality of cooperative electrodes, including a filament,'and means comprising a substantially non-microphonic conductor for vcarrying current to said filament and for preventing vibrations of substantially all frequencies from being-communicated to'said filament, said 7 conductor being constituted of superimposed 10 metallicwires, f s v a ALBERT W. HULL.

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Microwave Tubes (AREA)
US326169A 1928-12-15 1928-12-15 Nonresonant supporting device Expired - Lifetime US2012129A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US326169A US2012129A (en) 1928-12-15 1928-12-15 Nonresonant supporting device
GB37317/29A GB344907A (en) 1928-12-15 1929-12-05 Improvements in and relating to non-resonant electrode supports for electron discharge devices
FR686423D FR686423A (fr) 1928-12-15 1929-12-11 Perfectionnements aux systèmes de suspension dépourvus de résonance, notamment pour les appareils thermioniques
NL49425A NL26209C (enrdf_load_stackoverflow) 1928-12-15 1929-12-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US326169A US2012129A (en) 1928-12-15 1928-12-15 Nonresonant supporting device

Publications (1)

Publication Number Publication Date
US2012129A true US2012129A (en) 1935-08-20

Family

ID=23271083

Family Applications (1)

Application Number Title Priority Date Filing Date
US326169A Expired - Lifetime US2012129A (en) 1928-12-15 1928-12-15 Nonresonant supporting device

Country Status (4)

Country Link
US (1) US2012129A (enrdf_load_stackoverflow)
FR (1) FR686423A (enrdf_load_stackoverflow)
GB (1) GB344907A (enrdf_load_stackoverflow)
NL (1) NL26209C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910611A (en) * 1955-11-03 1959-10-27 Gen Electric Incandescent lamp mount and method of manufacture
US5023505A (en) * 1989-12-20 1991-06-11 Gte Products Corporation Electric lamp with improved frame support and method of producing same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2271442B1 (enrdf_load_stackoverflow) * 1974-05-17 1977-10-21 Pitner Alfred

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910611A (en) * 1955-11-03 1959-10-27 Gen Electric Incandescent lamp mount and method of manufacture
US5023505A (en) * 1989-12-20 1991-06-11 Gte Products Corporation Electric lamp with improved frame support and method of producing same

Also Published As

Publication number Publication date
NL26209C (enrdf_load_stackoverflow) 1932-03-15
FR686423A (fr) 1930-07-25
GB344907A (en) 1931-03-05

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