GB524748A - Improvements in or relating to luminous discharge tubes - Google Patents

Improvements in or relating to luminous discharge tubes

Info

Publication number
GB524748A
GB524748A GB385639A GB385639A GB524748A GB 524748 A GB524748 A GB 524748A GB 385639 A GB385639 A GB 385639A GB 385639 A GB385639 A GB 385639A GB 524748 A GB524748 A GB 524748A
Authority
GB
United Kingdom
Prior art keywords
magnet
contact
energized
tube
core
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
Application number
GB385639A
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.)
NEOGRAPH Ltd
Original Assignee
NEOGRAPH Ltd
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 NEOGRAPH Ltd filed Critical NEOGRAPH Ltd
Priority to GB385639A priority Critical patent/GB524748A/en
Publication of GB524748A publication Critical patent/GB524748A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/44—Controlling for providing special optical effects, e.g. progressive motion of light
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/004—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes to give the appearance of moving signs

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

524,748. Supply systems for space discharge apparatus. NEOGRAPH, Ltd., and KNEPPER, F. Feb. 6, 1938, No. 3856. [Class 38 (iv)] [Also in Group XL] A moving sign effect is produced by a discharge tube A with intermediate electrodes E2 ... E9, which are connected in turn to a high tension supply by electromagnets S energized in sequence by a low tension current, thus avoiding extensive high current connections. A rotating contact B is arranged to ensure that each magnet is energized before the previous one is disconnected and, by a long contact S9, to hold the tube fully illuminated for a period. A contact S10 energizes a magnet whereby the high tension supply is interrupted to extinguish the tube before the contact S9 is quitted. Fig. 2 shows a suitable arrangement of a magnet and auxiliary electrode. An insulating shell 1 carries a terminal 7 connected to a spring controlled contact which is attached to engage the core 3 of the magnet when the latter is energized. The magnet coil is fixed in'the shell 1 and its core is connected to the electrode E.
GB385639A 1939-02-06 1939-02-06 Improvements in or relating to luminous discharge tubes Expired GB524748A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB385639A GB524748A (en) 1939-02-06 1939-02-06 Improvements in or relating to luminous discharge tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB385639A GB524748A (en) 1939-02-06 1939-02-06 Improvements in or relating to luminous discharge tubes

Publications (1)

Publication Number Publication Date
GB524748A true GB524748A (en) 1940-08-14

Family

ID=9766200

Family Applications (1)

Application Number Title Priority Date Filing Date
GB385639A Expired GB524748A (en) 1939-02-06 1939-02-06 Improvements in or relating to luminous discharge tubes

Country Status (1)

Country Link
GB (1) GB524748A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2591729A (en) * 1948-01-06 1952-04-08 Mega Corp Electronic discharge tube system for animated or flowing electric signs and display devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2591729A (en) * 1948-01-06 1952-04-08 Mega Corp Electronic discharge tube system for animated or flowing electric signs and display devices

Similar Documents

Publication Publication Date Title
GB524748A (en) Improvements in or relating to luminous discharge tubes
GB561837A (en) Improvements in electron discharge devices particularly suitable for x-ray apparatus
GB582889A (en) Improvements in and relating to x-ray generating apparatus
GB543666A (en) Improvements in electron discharge apparatus
GB454116A (en) Improvements in supply arrangements for luminous electric discharge tubes
GB384857A (en) Improvements in luminous electric discharge tubes
GB395574A (en) Luminous signs
GB582408A (en) Improvements in hpmv electric discharge lamps for optical projection apparatus
GB344072A (en) Improvements in luminous electric discharge tubes
GB448585A (en) Improvements in electric discharge devices
GB429962A (en) Improvements in and relating to electric discharge lamps
GB411789A (en) Improvements relating to electrical discharge rectifier apparatus
GB519493A (en) Improvements in electric flashlights
GB435931A (en) Improvements in and relating to the operation of electric luminous gas-filled and/orvapour-filled tubes and/or lamps
GB414630A (en) Improvements in mercury arc devices
GB481420A (en) Improvements in electric arc lamps
GB543811A (en) Improvements in high pressure mercury vapour electric discharge lamps
GB614493A (en) Improvements in or relating to devices comprising electric gas-discharge tubes
GB517094A (en) Improvements in high-pressure metal-vapour electric discharge lamps
GB519685A (en) Improvements in or relating to means for operating vapour or gas filled electric discharge lamps or tubes
GB464297A (en) Improvements relating to electric lamps
GB457529A (en) Improvements in mercury switches
GB451008A (en) Improvements in or relating to luminous signs
GB415236A (en) Protective arrangements for luminous discharge tube signs
GB446264A (en) Improvements in or relating to supply arrangements for luminous electric discharge tubes