GB393886A - Improvements in or relating to electric incandescent lamps - Google Patents
Improvements in or relating to electric incandescent lampsInfo
- Publication number
- GB393886A GB393886A GB532/33A GB53233A GB393886A GB 393886 A GB393886 A GB 393886A GB 532/33 A GB532/33 A GB 532/33A GB 53233 A GB53233 A GB 53233A GB 393886 A GB393886 A GB 393886A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filament
- screen
- jan
- relating
- electric lamp
- 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
- 238000004873 anchoring Methods 0.000 abstract 1
- 239000011324 bead Substances 0.000 abstract 1
- 230000006378 damage Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 239000012212 insulator Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000002028 premature Effects 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/09—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis
- C07C29/10—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis of ethers, including cyclic ethers, e.g. oxiranes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/48—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by oxidation reactions with formation of hydroxy groups
- C07C29/50—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by oxidation reactions with formation of hydroxy groups with molecular oxygen only
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/23—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of oxygen-containing groups to carboxyl groups
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
- D06L1/02—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using organic solvents
- D06L1/04—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using organic solvents combined with specific additives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K9/00—Lamps having two or more incandescent bodies separately heated
- H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Textile Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL393886X | 1932-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB393886A true GB393886A (en) | 1933-06-15 |
Family
ID=19785828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB532/33A Expired GB393886A (en) | 1932-01-16 | 1933-01-06 | Improvements in or relating to electric incandescent lamps |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR748474A (enrdf_load_stackoverflow) |
GB (1) | GB393886A (enrdf_load_stackoverflow) |
NL (2) | NL36934C (enrdf_load_stackoverflow) |
-
0
- NL NL59881D patent/NL59881C/xx active
- NL NL36934D patent/NL36934C/xx active
-
1933
- 1933-01-04 FR FR748474D patent/FR748474A/fr not_active Expired
- 1933-01-06 GB GB532/33A patent/GB393886A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL36934C (enrdf_load_stackoverflow) | |
NL59881C (enrdf_load_stackoverflow) | |
FR748474A (fr) | 1933-07-04 |
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