GB222965A - Improvements in the manufacture of heat-insulating articles - Google Patents
Improvements in the manufacture of heat-insulating articlesInfo
- Publication number
- GB222965A GB222965A GB1807223A GB1807223A GB222965A GB 222965 A GB222965 A GB 222965A GB 1807223 A GB1807223 A GB 1807223A GB 1807223 A GB1807223 A GB 1807223A GB 222965 A GB222965 A GB 222965A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vapour
- heat
- glass
- manufacture
- vacuum
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/04—Re-forming tubes or rods
- C03B23/13—Reshaping combined with uniting or heat sealing, e.g. for making vacuum bottles
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Thermal Insulation (AREA)
Abstract
222,965. Delany, J. H. July 12, 1923. Cold and heat retaining chambers.- In the manufacture of heat-insulating articles comprising single or double walls such as containers for food, hollow bricks or tiles for walls, &c. of buildings, an easily condensible gas or vapour is introduced into the interior of a mass of molten glass at a pressure equal to or greater than atmospheric, the blow-pipe is withdrawn and the aperture is sealed while the glass is still plastic. Instead of a vapour or gas a material capable of producing a vapour may be employed. It is stated that a vacuum has been produced by the volatilization and subsequent condensation of a piece of cast zinc. To create a vacuum in articles made from grades of glass which become brittle at very high temperatures steam may be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1807223A GB222965A (en) | 1923-07-12 | 1923-07-12 | Improvements in the manufacture of heat-insulating articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1807223A GB222965A (en) | 1923-07-12 | 1923-07-12 | Improvements in the manufacture of heat-insulating articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB222965A true GB222965A (en) | 1924-10-13 |
Family
ID=10106165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1807223A Expired GB222965A (en) | 1923-07-12 | 1923-07-12 | Improvements in the manufacture of heat-insulating articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB222965A (en) |
-
1923
- 1923-07-12 GB GB1807223A patent/GB222965A/en not_active Expired
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