US1940319A - Protective cooling system for thermionic apparatus - Google Patents

Protective cooling system for thermionic apparatus Download PDF

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Publication number
US1940319A
US1940319A US328198A US32819828A US1940319A US 1940319 A US1940319 A US 1940319A US 328198 A US328198 A US 328198A US 32819828 A US32819828 A US 32819828A US 1940319 A US1940319 A US 1940319A
Authority
US
United States
Prior art keywords
stem
filament
thermionic
cooling system
tubing
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
US328198A
Other languages
English (en)
Inventor
Henry J Nolte
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 US328198A priority Critical patent/US1940319A/en
Priority to US328819A priority patent/US1940284A/en
Priority to GB38029/29A priority patent/GB342074A/en
Priority to GB38815/29A priority patent/GB333136A/en
Priority to FR687118D priority patent/FR687118A/fr
Application granted granted Critical
Publication of US1940319A publication Critical patent/US1940319A/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
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/24—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space

Definitions

  • theobjects of the invention is to provide a means which will ensure the insertion of the tubing into the reentrant stem at the time the tube is operated, thereby to provide a positive protection of the stem against high temperature, and, in general, to assurethe maintenance of certain portions of the envelope, subject to considerable heat during operation, relatively cool.
  • filament circuit is affixed and which device is brought into operation only when the conduit is placed in such a position with respect to the thermionic apparatus that a cooling fluid is properly directed against the'heated parts.
  • numeral 1 designates the glass bushings receivethefllameht cables 5,:5! apertures are also formed in the cap, one of:
  • an evacuated envelopathe lower end jof which terminates in a cylindrical anode 2 and the upperend-in a reentrant glassportionS.
  • a plurality of cooperating electrodes comprising a rectilinear-filamentary cathode. and a cylindricalgrid or electrostatic control member.
  • the upper end of the filamentary cathode is sup portedfrom the reentrant stem 3 by'ineansof form in the pinch seal and 'the'vacuum fail.
  • the grid is supported within the-anode-by meansof a grid clamp Lto which connection is made by a flexible strip lead 8 taken through the side of the envelope by means ofa'tubulation 9.
  • a. metallic cap 10 which fits 'over the upper end of the 175 envelope and is secured thereto in any suitable manner.
  • the cap 10 contains a plurality ofisymmetrically'spaced apertures withinwhich bushings. 11 of insulated material are fitted; these Other 30 which may be utilized for the reception of a flexible rubber tubing 12 which, is employed for the purpose of directing acooling fiuid against the lower portions of the filament conductors, the 35 pinch seal and other heated parts, and others of which (not shown) may serve as a means of egress for the cooling fluid from the interior of the stem.
  • the tubing 12 extends a considerable distance along the reentrant stem andis bent to such a shape and constituted of such length as will most effectively perform this purpose. 1
  • the upper end of the tubing 12 is carried through the aperture and terminates in a conical extension or bushing member 13, preferably.
  • the nozzle 14 is carried by a piece of stiff tubing 15, preferably bakelite which is adapted at its free end to engage with a rubber air supply manifold 16.
  • the tubing 15 is provided with a swivel joint '95 17 of any suitable design.
  • a vane 18 is affixed rigidly to the swivel member, which vane is so positioned that when the nozzle 14 is firmly seated on the conical bushing 13, which position is indicated in dotted line, an electrical circuit is closed across the contacts 19, 19 thereby to establish a circuit through a relay 20 energized preferably from mains of commercial voltage.
  • the energization of relay 20 causes a circuit to be completed through an armature 21 and a contact 22 so that current from a source of electromotive force 23 will flow through the filament.
  • the apparatus and circuit arrangement described provide a positive means for interlocking the operation of applying the air or other cooling fluid to the tubing which directs the fluid toward the filament conductors and the pinch seal with the operation of energizing the filament. It is further apparent that if desired, the position of the vane member 18 on the swivel joint may be adjusted to give any desired time relation between these operations. While I have shown and described by way of example the relay 20 as controlling the filament circuit, it is obvious that if desired, control may be exercised on the grid, plate or any other convenient electrode within the thermionic device so that when any of these electrodes are energized, a supply of cooling fluid is assured to the tubing 12.
  • thermoelectric apparatus including an envelope and a plurality of cooperating electrodes, said envelope terminating in a reentrant stem, a leading-in conductor for one of said electrodes, said conductor passing through the stem, means for directing a cooling fluid against the stem in the region of said conductor, said means comprising a stationary conduit mounted within the stem and a fluid-supply conduit which is movable into and out of engagement with said stationary conduit, a source of current connected to the leading-in conductor for energizing the said one electrode, and means for preventing energization of the said one electrode except when the fluid-supply conduit is moved into engagement with said stationary conduit.
  • the apparatus including an envelope and a plurality of cooperating electrodes, said envelope terminating in a reentrant stem, a leading-in conductor for one of said electrodes, said conductor passing through the stem, means for directing a cooling fluid against the stem in the region of said conductor, said means comprising a stationary conduit mounted within the stem and a fluid-supply conduit which is movable into and out of engagement with said stationary conduit, a source of current connected to the leading-in conductor for energizing the said one electrode, and means for preventing energization of the said one electrode except when the fluid-supply conduit is moved into engagement with said stationary conduit, said last-mentioned means comprising an electrical contact device mounted on the movable conduit.
  • thermoelectric apparatus comprising an envelope and a plurality of cooperating electrodes including a filament, said envelope terminating in a reentrant stem and provided with a cap, leading-in conductors for said filament, the conductors passing through the stem and cap, means for directing a cooling fluid against the stem in the region of said conductors, said meanscomprising a stationary conduit secured to said .cap and extending into said stem, a fluid supply HENRY J NOLTE.

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  • Resistance Heating (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Pipe Accessories (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Reciprocating Pumps (AREA)
US328198A 1928-12-24 1928-12-24 Protective cooling system for thermionic apparatus Expired - Lifetime US1940319A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US328198A US1940319A (en) 1928-12-24 1928-12-24 Protective cooling system for thermionic apparatus
US328819A US1940284A (en) 1928-12-24 1928-12-27 Protective cooling system for thermionic apparatus
GB38029/29A GB342074A (en) 1928-12-24 1929-12-11 Improvements in and relating to thermionic apparatus
GB38815/29A GB333136A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1928-12-24 1929-12-18
FR687118D FR687118A (fr) 1928-12-24 1929-12-23 Perfectionnements aux systèmes de refroidissement d'appareils thermoioniques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US328198A US1940319A (en) 1928-12-24 1928-12-24 Protective cooling system for thermionic apparatus

Publications (1)

Publication Number Publication Date
US1940319A true US1940319A (en) 1933-12-19

Family

ID=23279944

Family Applications (1)

Application Number Title Priority Date Filing Date
US328198A Expired - Lifetime US1940319A (en) 1928-12-24 1928-12-24 Protective cooling system for thermionic apparatus

Country Status (3)

Country Link
US (1) US1940319A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR687118A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (2) GB342074A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515302A (en) * 1947-08-27 1950-07-18 Air Reduction Apparatus for controlling relative movement between a gas torch and a workpiece
US2818530A (en) * 1954-07-27 1957-12-31 Marconi Wireless Telegraph Co Cooling systems for gas filled electron discharge devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515302A (en) * 1947-08-27 1950-07-18 Air Reduction Apparatus for controlling relative movement between a gas torch and a workpiece
US2818530A (en) * 1954-07-27 1957-12-31 Marconi Wireless Telegraph Co Cooling systems for gas filled electron discharge devices

Also Published As

Publication number Publication date
GB333136A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1930-08-07
GB342074A (en) 1931-01-29
FR687118A (fr) 1930-08-05

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