GB943236A - Improved apparatus for drawing glass tubing and rod - Google Patents
Improved apparatus for drawing glass tubing and rodInfo
- Publication number
- GB943236A GB943236A GB3694260A GB3694260A GB943236A GB 943236 A GB943236 A GB 943236A GB 3694260 A GB3694260 A GB 3694260A GB 3694260 A GB3694260 A GB 3694260A GB 943236 A GB943236 A GB 943236A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roller
- glass
- rod
- sleeve
- mandrel
- 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
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/04—Forming tubes or rods by drawing from stationary or rotating tools or from forming nozzles
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
<PICT:0943236/C1/1> In the drawing of glass tubing or rod 7 from a sleeve of softened glass formed on an inclined rotating mandrel 1, the sleeve of glass is tooled, as by a roller 8, with a light resilient pressure against the glass, in the lower half of its length during rotation of the mandrel so as to render the sleeve wall thickness more uniform. The ceramic mandrel 1 has a tip 2 of corrosion-resistant metal and is secured to a hollow shaft for rotation therewith, the shaft acting as a blow-pipe when tubing is being produced, the whole being enclosed in a muffle 12 suitably heated as by gas burners and having a sliding door 13 and a steel door 14 with lining 15 of refractory material, the rod or tube 7 passing through an opening 16. The atmosphere in the muffle is of nitrogen to prevent oxidation of the graphite of the roller 8. As shown, the roller 8 is carried in a gimbal 17 in a yoke 18 on the end of a long tube 19 pivoted at 20 near its mid point and guided at 21 to prevent lateral displacement. A slidable counterweight 22 gives light pressure of the roller 8 on the glass. In an alternative construction, the roller 8 is mounted in a yoke at the end of a water-cooled arm with counterweight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3694260A GB943236A (en) | 1960-10-27 | 1960-10-27 | Improved apparatus for drawing glass tubing and rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3694260A GB943236A (en) | 1960-10-27 | 1960-10-27 | Improved apparatus for drawing glass tubing and rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB943236A true GB943236A (en) | 1963-12-04 |
Family
ID=10392441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3694260A Expired GB943236A (en) | 1960-10-27 | 1960-10-27 | Improved apparatus for drawing glass tubing and rod |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB943236A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1283194A2 (en) * | 2001-08-04 | 2003-02-12 | Schott Glas | Apparatus for manufacturing a glass tube or rod using a draw pipe |
-
1960
- 1960-10-27 GB GB3694260A patent/GB943236A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1283194A2 (en) * | 2001-08-04 | 2003-02-12 | Schott Glas | Apparatus for manufacturing a glass tube or rod using a draw pipe |
| EP1283194A3 (en) * | 2001-08-04 | 2003-11-05 | Schott Glas | Apparatus for manufacturing a glass tube or rod using a draw pipe |
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