US1998121A - Luminous device - Google Patents

Luminous device Download PDF

Info

Publication number
US1998121A
US1998121A US641719A US64171932A US1998121A US 1998121 A US1998121 A US 1998121A US 641719 A US641719 A US 641719A US 64171932 A US64171932 A US 64171932A US 1998121 A US1998121 A US 1998121A
Authority
US
United States
Prior art keywords
electrode
luminous
cathode
shaped
lamp
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
US641719A
Other languages
English (en)
Inventor
Dobrusskin Sajweli
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US1998121A publication Critical patent/US1998121A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
    • H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
    • H01J17/491—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with electrodes arranged side by side and substantially in the same plane, e.g. for displaying alphanumeric characters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)

Definitions

  • My invention relates to improvements in" luminous devices, and more particularly in luminous electric discharge devices intended for advertising, signalling, or similar purposes, and
  • a luminous discharge device comprising essentially a pair of electrodes arranged in a bulb filled with a gaseous atmosphere of suitable composition and pressure and operated with a proper operating voltage and by limiting thenegative glow produced over the surface of the negative electrode, such as by means of a suitable series resistance connected in one of the supply leads so as to extend over a portion only of the electrode surface, a regular or irregular movement of the partial glowing layer may be efiected.
  • the electrodes are of substantially symmetrical shape with regard to the intended axis of rotation of the partial luminous glow. This may be accomplished in an easy way by an annular electrode serving as the anode and a dome-shaped electrode serving'as cathode, and arranged opposite the former.
  • Another'object of my invention is to provide a novel construction for a luminous discharge device of the characterdescribed which is simple and easy to make and assemble and insures even and uniform operation, thus affording manufacture on a large scale and mass production basis".
  • Still a further object of my invention is to provide a reflecting means to be used in connection with a luminous device, especially for the type as described in the invention.
  • the luminous discharge lamp in accordance with my invention is primarily intended for advertising and signalling purposes, both for producing increased attraction and effectiveness and is designed to produce a luminous or glowing layer or layers when operated with the proper current or voltage, which layer or layers will perform regular or irregular visible movements, primarily a rotational movement, as in the case of symmetrical construction as outlined above.
  • lamps of this type very peculiar and attractive light effects may be obtained with a very low consumption of electrical energy, thus decreasing materially the cost and expense of advertising.
  • the eifect of such a lamp may be furthermore increased materially in various manners, such as by mounting the lamp in a suitable reflectorsuch as a hollow mirror reflector having a surface being either smoothor provided with projections and grooves, etc., or which may be preferably broken in a multiple manner for this purpose, as will be described hereinafter;
  • a suitable reflector such as a hollow mirror reflector having a surface being either smoothor provided with projections and grooves, etc., or which may be preferably broken in a multiple manner for this purpose, as will be described hereinafter;
  • Figure 1 represents a longitudinal section of a luminous discharge lamp according to the invention
  • Figure 2 is a cross-section taken along the section line AB in Figure 1.
  • Figure 3 shows a perspective partial view of the electrode construction.
  • Figures 4 and 5 illustrate partial sections 7 of different electrodestructures from Figure l.
  • the bulb 2 may consist of ordinary or colored glass.
  • the tube I is sealed at its lower end to thebulb 2, being integral therewith andforming a re-entrantportion.
  • a tubing or sleeve 3 consisting of insulating material such as of a ceramic material and surrounding a leadin wire 4.
  • the latter is connected to the central contact 25 of a standard screw type socket for the lamp.
  • the upper end of the lead-in wire 4 is connected to a metal rod 5 sealed in a cap or head 6 of the glass tube 1.
  • the metallic rod 6 is threaded at its upper end for carrying the electrode 8 which may be of bell-shape or domeshape as shown, by means of threaded disk washers I, allowing the fastening and the proper positioning of the electrode 8.
  • the electrode 8 may be mounted in any suitable manner other than by the screw connection shown, as is understood, such as by riveting, welding, etc.
  • the electrode 8 consists of a suitable sheet metal preferably of iron with a polished or oxidized surface or of highly polished aluminum or similar conducting material.
  • the other lead-in wire 8 connected to the screw contact 24 of the lamp socket is arranged outside of the insulating tube 3 and inside the glass tube I. 'After the electrodes ,have been mounted, the upper end of thelead-in wire is passed in a gas type connection through the tube I as shown at "I, and inside the hollow electrode 8, as seen from the drawings. The outside end of this lead-in wire is then soldered or welded onto an upwardly bent tongue ll obtained by a punching of the ring-shaped thin metal electrode l2 at its inner circumference.
  • the notch l3 obtained by punching of the tongue H, readily enables the sliding of the ring-shaped electrode l2 overthe sealing projection l8 and its mounting on the ass tube I, such as by an annular projection 14 of the glass tube I supporting the electrode l2 with insulating disks l5 and' I6, preferably of mica or the like, interposed.
  • the ring-shaped electrode l2 (anode) is furthermore insulated from the dome-shaped electrode 8 (cathode) by an insulating disk II, preferably also consisting of mica and having its edge protruding beyond the dome or bell-shaped electrode 8.
  • the insulating disks I5 and I8 and I8, respectively were provided with a notch l8 and I8, respectively, so as to enable their sliding over the sealing projection III of the glass tube I.
  • the mica disks l5 and I8, or at least one of them are displaced relatively to each other and with regard to the notch l3 of the electrode l2 in such a manner that both notches l8 and I 8 no longer register with the notch I3.
  • this illustrates another modification of an electrode structure for a lamp according to my invention showing the domeshaped electrode 8 provided with a small flange 22 and with an edge 23 of the ring-shaped electrode l2 bent around the mica spacing disk l1 and at a small distance from the flange 22 of the electrode 8.
  • FIG 8 I have shown a modified construction of a lamp in accordance with my invention which is especially suited for large scale and commercial manufacture.
  • a central metallic rod 35 sealed in a press 84 of the main bulb 2 of the lamp and serving as a connecting lead for the dome-shaped electrode 8 and as a mechanical support of the electrode structure.
  • the rod 35 is surrounded by an outer sleeve 38, preferably of glass, sealed in and integral with the press 34.
  • This sleeve serves for supporting the ring-shaped electrode 12 with insulatin'gwashers 38, preferably of mica or the like, being interposed.
  • a further insulating sleeve consisting, for instance, of ceramic material closely surrounds the metal rod 35 extending through .the central opening of the electrode I 2 to sufliciently insulate the electrode I2 from the metal rod 35.
  • Electrode 8 are arranged in a similar manner as described in Figure 1; theelectrode 8 having a central opening through which extends the upper threaded end of the rod 35 is placed in position and then screwed down against electrode 12 as by means of 'a nut 38. .
  • the electrode I2 is connected to the screw contact 24 through a lead 38 and electrode 8 to the central contact 25, similar as shown in Figure 1.
  • the remaining features of this lamp are similar to the construction as shown in Figure 1.
  • FIGs 6 and 7 I have shown a reflector suitedfor use in combination with electric-lamps, in particular for a luminous discharge device of the type as described above.
  • this reflector in connection with a lamp according to the present invention, very attractive illuminating efl'ects'for advertising and display purposes are obtained, especially-when a colored glass for the lamp is used.
  • the surface of the reflector which, in order to secure the desired effect, is directed towards the observer, may consist of an integral, preferably broken, surface such as of metal or glass. or may be comprised of a plurality of segments suitably assembled and mounted fixedly or exchangeably in a supporting frame. when using a reflector or reflector segments consisting of glass, these may be made of transparent mirror elements carrying letters or other advertising material and being illuminated from behind.
  • a reflector shown in Figures 6 and 7, this comprises a plurality of conically arranged units 21 consisting of metal or of mirror glass to be further more illuminated from behind.
  • the single electric lamp, such as a discharge lamp 2!, according to the present invention, arranged in the center is reflected by all of the individual units in a multiple manner so as to create the impression of a corresponding, number of luminous elements 29 constantly rotating and thus producing remarkable attractive eifects to the observer.
  • the units 21 may be supported exchangeably, such as by supporting frames 30 and 3
  • a luminous discharge device comprising a vessel filled with a gaseous atmosphere, a pair of coaxial electrodes within said vessel, being substantially symmetrical with respect to the common axis means for limiting the current supplying said electrode so that-the glow does not occupy the entire electrode surface and rotates around the electrodes, and a disc of insulating material, separating said electrodes.
  • a luminous glow discharge device as described in claim 1, in which the edge of one of said electrodes protrudes beyond the edge of said 'other electrode by at least the amount of the thickness of the glowing luminous layer, covering said latter electrode.
  • a luminous discharge device comprising a vessel filled with a gaseous atmosphere, a first substantially fiat electrode within said vessel, a second cooperating electrode within said vessel, said electrodes being mounted substantially syma glass bulb filled with a gaseous atmosphere, a
  • first disc shaped positive electrode within said bulb a second dome shaped negative electrode arranged in proximity to said first electrode, said electrodes being mounted substantially coaxially with each other, with said dome shaped electrode resting upon said first electrode, the edges of said disc shaped electrode protruding beyond the edge of said dome shaped electrode by at least the amount of the thickness of the negative luminous 6.
  • said disc shaped electrode and said dome shaped electrode are separated by a mica disc, placed upon said disc shaped electrode.
  • a gas discharge lamp comprising a discshaped positive electrode; a dome-shaped negativ electrode coaxial with and resting upon said p'os tive'electrode, an insulating separator disc between said electrodes, the edges "of said positive electrode protruding beyond the base of said negative electrode, a central conducting supporting rod passing through an opening of said positive electrode and having its upper end connected to said dome-shaped electrode, and means for limiting the current to said electrodes so that the negative glow extends over a portion only of the surface of said negative electrode and rotates continually around the electrode surface.
  • a gas discharge lamp comprising a discshaped positive electrode, a dome-shaped negative electrode coaxial with and separated by a mica disc from said positive electrode, the edges of said positive electrode substantially protruding beyond the base of said negative electrode to an extent at least equal to the width of the negativeglowing layer produced upon said negative electrode, a central conducting support passing through said positive electrode and having its upper end connected to said dome-shaped electrode, and means including a limiting resistance mounted in said lamp for limiting the current to said electrodes so that the glow occupies a portion of the electrode surface only and rotates continually around the electrodes.
  • An electric discharge device comprising a container, a cathode and an anode sealed therein; a gaseous atmosphere therein, said cathode beingcup-shaped, said anode being a disc; the center thereof being in a longitudinal axis of said cup-shaped cathode; a thin plate of insulating material being interpwed between said anode and cathode covering the open end of said cathode, the external wall of said cathode being provided with an oxidized surface.
  • An electric discharge device comprising a container; a cathode and an anode sealed therein; a gaseous atmosphere therein, said cathode being cup-shaped, said anode being a disc, the centerthereof being in the longitudinal axis of said cup-shaped cathode, the diameter of said disc being greater than the largest diameter of said cathode; a thin plate of insulating material interposed between said anode and said cathode covering the open end of said cathode, the external wall of said cathode having an oxide coating thereon.
  • An electric discharge device comprising a container; a cathode and an anode sealed therein; a gaseous atmosphere therein, said cathode being cup-shaped and consisting of aluminum, said anode being a disc, the center thereof being in the longitudinal axis of said cup-shaped cathode; a thin plate of insulating material interposed between said anode and said cathode covering the open end of said cathode, the external wall of said cathode having a highly polished surface, and means for limiting the current to said electrodes so that the glow covers only a part of said cathode surface and moves continuously along the electrode.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
US641719A 1931-12-18 1932-11-08 Luminous device Expired - Lifetime US1998121A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE383530X 1931-12-18
DED62561D DE616195C (de) 1931-12-18 1931-12-19 Elektrische Glimmlampe, insbesondere fuer Reklame- und Signalzwecke, deren Glimmschicht beim Betrieb der Lampe in Bewegung gesetzt wird

Publications (1)

Publication Number Publication Date
US1998121A true US1998121A (en) 1935-04-16

Family

ID=25873305

Family Applications (1)

Application Number Title Priority Date Filing Date
US641719A Expired - Lifetime US1998121A (en) 1931-12-18 1932-11-08 Luminous device

Country Status (3)

Country Link
US (1) US1998121A (de)
DE (1) DE616195C (de)
GB (1) GB383530A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3496941A (en) * 1966-11-14 1970-02-24 David Clough Ketner Sun-bathers reflector device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3496941A (en) * 1966-11-14 1970-02-24 David Clough Ketner Sun-bathers reflector device

Also Published As

Publication number Publication date
GB383530A (en) 1932-11-17
DE616195C (de) 1935-07-22

Similar Documents

Publication Publication Date Title
US3218447A (en) Drinking glass
US2694785A (en) Electroluminescent oscillator
US2103041A (en) Gaseous electric discharge lamp device
US1998121A (en) Luminous device
US2505993A (en) Fluorescent electric lamp
US2068741A (en) Gas-filled discharge tube
US1961618A (en) Low voltage electric discharge tube
US1928407A (en) Luminous sign
US2138197A (en) Electric discharge lamp
US1989786A (en) Base and based electric device
US3265922A (en) Electric lamp
US2096236A (en) Electrical discharge device
US3278787A (en) Bulb assembly
US2018254A (en) Illuminating device
US1316967A (en) Gaseous-conduction lamp
US1914762A (en) Cathode glow discharge device
US2001490A (en) Gaseous electric discharge device
US2224597A (en) Gaseous electric discharge device
US1955084A (en) Solid surface area illuminator
US2259947A (en) Trigger for discharge devices
US515465A (en) Electrical glow-lamp
US2060584A (en) Electric light
US1906413A (en) Display device
US1531036A (en) Glowlamp
US1549716A (en) Electric gas lamp with glow discharge