GB338457A - Improvement in the working of fused pure silica or other vitreous material which is fusible with difficulty - Google Patents
Improvement in the working of fused pure silica or other vitreous material which is fusible with difficultyInfo
- Publication number
- GB338457A GB338457A GB4888/30A GB488830A GB338457A GB 338457 A GB338457 A GB 338457A GB 4888/30 A GB4888/30 A GB 4888/30A GB 488830 A GB488830 A GB 488830A GB 338457 A GB338457 A GB 338457A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fusible
- difficulty
- improvement
- working
- silica
- 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
- C03B19/00—Other methods of shaping glass
- C03B19/02—Other methods of shaping glass by casting molten glass, e.g. injection moulding
- C03B19/025—Other methods of shaping glass by casting molten glass, e.g. injection moulding by injection moulding, e.g. extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
338,457. Quartz et Silice. April 17, 1929, [Convention date]. Fused silica.-Relates to a method of moulding articles from fused silica, or other refractory vitreous material, and fining the material at the same time that it is brought to the required shape. According to the invention, a silica blank is heated to a very high temperature as described in Specification 283,174, the incandescent material is placed in a cylinder 1 between pistons 2, and it is then pressed so that it is driven outwards at a high speed through orifices 4 into cavities 5 formed in a mould body 6. The soundest portion of the silica blank is forced into the cavities 5, and the part that remains between the pistons retains the bubbles or flaws which existed in the blank.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR527047X | 1929-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB338457A true GB338457A (en) | 1930-11-20 |
Family
ID=8921132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4888/30A Expired GB338457A (en) | 1929-04-17 | 1930-02-13 | Improvement in the working of fused pure silica or other vitreous material which is fusible with difficulty |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE527047C (en) |
| FR (1) | FR688911A (en) |
| GB (1) | GB338457A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE747638C (en) * | 1941-02-13 | 1944-10-09 | Process for the production of spherical overpressure discharge lamps made of quartz glass |
-
1929
- 1929-04-17 FR FR688911D patent/FR688911A/en not_active Expired
-
1930
- 1930-02-13 GB GB4888/30A patent/GB338457A/en not_active Expired
- 1930-04-11 DE DE1930527047D patent/DE527047C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR688911A (en) | 1930-08-30 |
| DE527047C (en) | 1931-06-13 |
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