GB744848A - Improvements in or relating to a method of introducing an ignition device in the bulb of a flashlight lamp - Google Patents

Improvements in or relating to a method of introducing an ignition device in the bulb of a flashlight lamp

Info

Publication number
GB744848A
GB744848A GB13680/53A GB1368053A GB744848A GB 744848 A GB744848 A GB 744848A GB 13680/53 A GB13680/53 A GB 13680/53A GB 1368053 A GB1368053 A GB 1368053A GB 744848 A GB744848 A GB 744848A
Authority
GB
United Kingdom
Prior art keywords
bulb
neck
wire
tube
mms
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
GB13680/53A
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 GB744848A publication Critical patent/GB744848A/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
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/245—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps
    • H01J9/247—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps specially adapted for gas-discharge lamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K5/00—Light sources using charges of combustible material, e.g. illuminating flash devices
    • F21K5/02—Light sources using charges of combustible material, e.g. illuminating flash devices ignited in a non-disrupting container, e.g. photo-flash bulb
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/32—Seals for leading-in conductors
    • H01J5/44—Annular seals disposed between the ends of the vessel

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

744,848. Photographic flash lamps. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 15, 1953 [May 20, 1952], No. 13680/53. Class 9(2) To introduce the ignition means into an adhesive-coated flash bulb 1 containing actinically-burning wire 2 and having a capacity of about 8 c.cs. with longitudinal axis of 38 mms. and transverse axis of 22 mms., the bulb is placed with the neck opening turned upwards and the bead mount 4 is introduced by means of a tool. The mount 4 comprises a filament connecting lead wires 5, 5<SP>1</SP> which pass through a bead carrying an ignition paste. The free ends of the wires 5, 5<SP>1</SP> are bent back along the outer wall of the bulb and clamped by a cardboard ring 7 with the filament wire 8 in the required position within the bulb. Rotating gas flames 9, 9<SP>1</SP> are used to soften the glass and adhesive at the neck opening 3 and the edge of the exhaust tube 10. The tube 10 is then pressed against the neck to secure the wire 5, 5<SP>1</SP>. The lamp is then exhausted and the gas filling introduced, after which the tube 10 is sealed. Two projecting ribs on the bulb neck allow the bulb to be positioned in a holder with the outer ends 5, 5<SP>1</SP> of the leads acting as conductors.
GB13680/53A 1952-05-20 1953-05-15 Improvements in or relating to a method of introducing an ignition device in the bulb of a flashlight lamp Expired GB744848A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL744848X 1952-05-20

Publications (1)

Publication Number Publication Date
GB744848A true GB744848A (en) 1956-02-15

Family

ID=19822793

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13680/53A Expired GB744848A (en) 1952-05-20 1953-05-15 Improvements in or relating to a method of introducing an ignition device in the bulb of a flashlight lamp

Country Status (5)

Country Link
US (1) US2799152A (en)
BE (1) BE520032A (en)
DE (1) DE931148C (en)
FR (1) FR1080091A (en)
GB (1) GB744848A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1036642B (en) * 1954-08-07 1958-08-14 Philips Nv Foil flash lamp with glass base
US3432803A (en) * 1968-02-15 1969-03-11 Philco Ford Corp High voltage connection for cathode ray tube

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1716167A (en) * 1925-05-18 1929-06-04 Westinghouse Lamp Co Apparatus for and method of aligning elements in sealed containers
US1742153A (en) * 1925-05-23 1929-12-31 Gen Electric Sealing machine for incandescent lamps and similar articles
US2023628A (en) * 1929-10-10 1935-12-10 Western Electric Co Method of and apparatus for manufacturing electric lamps
US2006568A (en) * 1932-07-01 1935-07-02 Westinghouse Lamp Co Method of sealing metal wires to glass
BE402737A (en) * 1933-04-21
US2359483A (en) * 1942-10-17 1944-10-03 Gen Electric Vitreous electrical device and its fabrication
US2699659A (en) * 1951-02-03 1955-01-18 Sylvania Electric Prod Photoflash lamp

Also Published As

Publication number Publication date
BE520032A (en)
US2799152A (en) 1957-07-16
FR1080091A (en) 1954-12-06
DE931148C (en) 1955-08-01

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