GB496281A - Method for the manufacture of glass-tubing with a wall consisting of two or more different layers - Google Patents
Method for the manufacture of glass-tubing with a wall consisting of two or more different layersInfo
- Publication number
- GB496281A GB496281A GB5196/37A GB519637A GB496281A GB 496281 A GB496281 A GB 496281A GB 5196/37 A GB5196/37 A GB 5196/37A GB 519637 A GB519637 A GB 519637A GB 496281 A GB496281 A GB 496281A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- fischer
- gather
- ring
- layers
- 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
- C03B15/00—Drawing glass upwardly from the melt
- C03B15/14—Drawing tubes, cylinders, or rods from the melt
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
496,281. Making glass tubes. FISCHER, M., FISCHER, H., and FISCHER, M., (trading as GLASWERK G. FISCHER). Feb. 22, 1937, No. 5196. Void. Convention date, Feb. 20, 1936. [Class 56] Glass tubes composed of two or more layers of different character are made by placing a gather b formed on a blowpipe a, within a ring c of a different kind of glass. The gather is then expanded by blowing until it makes contact with and is fused to the ring. The combination is then re-heated and drawn into a tube in the usual manner after which the end portions b<1>, b<2> of the original gather are broken away. The ring may be heated to near its softening point before the operation of expanding the gather and the latter may consist of two or more different layers. The ring may be in two semi-cylindrical sections of different glasses, and the tube during drawing may be twisted. Tubes made in the above manner may be used for illumination, either as filament or electric discharge lamps, and they may be composed of one or more layers of opal or luminescent glass.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE496281X | 1936-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB496281A true GB496281A (en) | 1938-11-28 |
Family
ID=6545008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5196/37A Expired GB496281A (en) | 1936-02-20 | 1937-02-22 | Method for the manufacture of glass-tubing with a wall consisting of two or more different layers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB496281A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4812344A (en) * | 1988-03-28 | 1989-03-14 | Spectran Corporation | Composite capillary tube structure and method of forming |
-
1937
- 1937-02-22 GB GB5196/37A patent/GB496281A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4812344A (en) * | 1988-03-28 | 1989-03-14 | Spectran Corporation | Composite capillary tube structure and method of forming |
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