GB534181A - Improvements relating to bases for electric lamps and similar devices - Google Patents
Improvements relating to bases for electric lamps and similar devicesInfo
- 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
Links
- 230000000994 depressogenic effect Effects 0.000 abstract 1
- 238000007373 indentation Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
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.
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)
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)
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 |
-
1940
- 1940-01-11 GB GB606/40A patent/GB534181A/en not_active Expired
- 1940-01-12 FR FR862857D patent/FR862857A/en not_active Expired
- 1940-02-14 US US318885A patent/US2262629A/en not_active Expired - Lifetime
-
1941
- 1941-02-14 FR FR51415D patent/FR51415E/en not_active Expired
- 1941-10-28 BE BE443197D patent/BE443197A/xx unknown
Cited By (1)
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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