GB858853A - A method of and apparatus for coating the inner wall of the envelope of an electric discharge lamp with a uniform liquid adhesive - Google Patents

A method of and apparatus for coating the inner wall of the envelope of an electric discharge lamp with a uniform liquid adhesive

Info

Publication number
GB858853A
GB858853A GB15709/59A GB1570959A GB858853A GB 858853 A GB858853 A GB 858853A GB 15709/59 A GB15709/59 A GB 15709/59A GB 1570959 A GB1570959 A GB 1570959A GB 858853 A GB858853 A GB 858853A
Authority
GB
United Kingdom
Prior art keywords
envelope
holder
discharge lamp
electric discharge
frame
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
GB15709/59A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB858853A publication Critical patent/GB858853A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Coating Apparatus (AREA)

Abstract

<PICT:0858853/III/1> The inner wall of the envelope of an electric discharge lamp is coated with a uniform adhesive layer, e.g. of phosphoric acid, by shaking the envelope, filled with adhesivecoated glass beads, with a to-and-fro motion simultaneously with a rotating movement about two mutually right-angled axes. An apparatus for this purpose comprises a holder 1 for supporting the envelope, rotatably mounted on a frame 2 which is rotatable and longitudinally displaceable on a fixed shaft 3. A motor 6 rotates the hub of the frame 2 by means of a belt 6, and simultaneously gives it a reciprocating motion through a linkage 7. The holder 1 is rotated about its axis by gears 12, shaft 8, pulley 9 and belt 10 which encircles the pulley 9 and a fixed pulley 11 on the shaft 3. Preferably the angular velocity of rotation of the holder 1 differs from that of the frame 2.
GB15709/59A 1958-05-07 1959-05-07 A method of and apparatus for coating the inner wall of the envelope of an electric discharge lamp with a uniform liquid adhesive Expired GB858853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE858853X 1958-05-07

Publications (1)

Publication Number Publication Date
GB858853A true GB858853A (en) 1961-01-18

Family

ID=20362945

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15709/59A Expired GB858853A (en) 1958-05-07 1959-05-07 A method of and apparatus for coating the inner wall of the envelope of an electric discharge lamp with a uniform liquid adhesive

Country Status (1)

Country Link
GB (1) GB858853A (en)

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