GB534181A - Improvements relating to bases for electric lamps and similar devices - Google Patents

Improvements relating to bases for electric lamps and similar devices

Info

Publication number
GB534181A
GB534181A GB606/40A GB60640A GB534181A GB 534181 A GB534181 A GB 534181A GB 606/40 A GB606/40 A GB 606/40A GB 60640 A GB60640 A GB 60640A GB 534181 A GB534181 A GB 534181A
Authority
GB
United Kingdom
Prior art keywords
skirt
lamp
neck
bases
similar devices
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
GB606/40A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB534181A publication Critical patent/GB534181A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G9/14—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils in pipes or coils with or without auxiliary means, e.g. digesters, soaking drums, expansion means
    • C10G9/18—Apparatus
    • C10G9/20—Tube furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M2700/00—Constructional details of combustion chambers
    • F23M2700/005—Structures of combustion chambers or smoke ducts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

534,181. Caps for incandescent lamps &c. BRITISH THOMSON-HOUSTON CO.. Ltd. Jan. 11, 1940, No. 606. Convention date, Jan. 13, 1939. [Class 39 (ii)] A lamp &c. cap has a metal skirt 31 which is of smaller diameter than the maximum diameter of a frusto-conical part 18 of the relatively heavy neck of a lamp or like electrical device. To secure the cap in position and resist torsional stresses it is forced on to the neck until it abuts a shoulder 19 and portions of the skirt are depressed into indentations 20 formed in the neck close to the shoulder. The skirt 31 may be longitudinally slit. The invention is described as applied to a reflector lamp of the kind described in Specification 515,091.
GB606/40A 1939-01-13 1940-01-11 Improvements relating to bases for electric lamps and similar devices Expired GB534181A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US534181XA 1939-01-13 1939-01-13
US318885A US2262629A (en) 1939-01-13 1940-02-14 Base for electric lamp or similar device

Publications (1)

Publication Number Publication Date
GB534181A true GB534181A (en) 1941-02-28

Family

ID=26731844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB606/40A Expired GB534181A (en) 1939-01-13 1940-01-11 Improvements relating to bases for electric lamps and similar devices

Country Status (4)

Country Link
US (1) US2262629A (en)
BE (1) BE443197A (en)
FR (2) FR862857A (en)
GB (1) GB534181A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132014A (en) * 1982-12-07 1984-06-27 Philips Nv Electric lamp

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2426093A (en) * 1945-05-02 1947-08-19 Stuart F Hardman Stage lighting
US3622947A (en) * 1970-09-02 1971-11-23 Robert M Griffin Lamp base extension
US4084576A (en) * 1976-05-03 1978-04-18 Owens-Illinois, Inc. Bulb-type solar energy collector
US5616984A (en) * 1993-08-09 1997-04-01 Xenotech, Inc. High wattage lamp ferrule and socket system
US5747919A (en) * 1994-12-29 1998-05-05 Philips Electronics North America Corporation Electric lamp having a hybrid skirted lamp base
JP4492337B2 (en) * 2004-12-14 2010-06-30 ウシオ電機株式会社 Light source unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132014A (en) * 1982-12-07 1984-06-27 Philips Nv Electric lamp

Also Published As

Publication number Publication date
FR51415E (en) 1942-06-24
US2262629A (en) 1941-11-11
FR862857A (en) 1941-03-18
BE443197A (en) 1942-03-31

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