GB747940A - Thermometer tube-blank manufacture - Google Patents
Thermometer tube-blank manufactureInfo
- Publication number
- GB747940A GB747940A GB1665454A GB1665454A GB747940A GB 747940 A GB747940 A GB 747940A GB 1665454 A GB1665454 A GB 1665454A GB 1665454 A GB1665454 A GB 1665454A GB 747940 A GB747940 A GB 747940A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- blank
- mandrel
- mould
- forming
- 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
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- 239000011521 glass Substances 0.000 abstract 8
- 239000006060 molten glass Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Optical Measuring Cells (AREA)
Abstract
747,940. Glass manufacture. CORNING GLASS WORKS. June 4, 1954, No. 16654/54. Class 56 A method of making a glass blank from which thermometer tubing can be drawn, comprises forming a cylindrical segment 20, Fig. 3, of the blank from molten clear glass, placing a bore-forming mandrel 9 on the flat surface of the segment'along its longitudinal centre, surrounding only part of the exposed portion of. the mandrel with a hard core 8 of the red or other colour-constrasting glass, spreading a layer of white or opaque molten glass 23 over the core and over the remaining exposed portions of the mandrel, and then forming the remaining segment of the blank about the glass 23. The blank is formed in a two section cylindrically shaped mould. After forming part of the blank in the mould section 11 using a core 8 in the form of a crescent which is clamped to the top side of the mandrel 9, the other section of the mould is used to form the clear glass portion 26, Fig. 2 of the blank. White or opaque glass 27 may be applied to the blank and a layer of clear glass 28 added after removal from the mould. Blanks may be formed having cross-sections which are not cylindrical. U.S.A. Specification 1,753,801 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1665454A GB747940A (en) | 1954-06-04 | 1954-06-04 | Thermometer tube-blank manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1665454A GB747940A (en) | 1954-06-04 | 1954-06-04 | Thermometer tube-blank manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
GB747940A true GB747940A (en) | 1956-04-18 |
Family
ID=10081210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1665454A Expired GB747940A (en) | 1954-06-04 | 1954-06-04 | Thermometer tube-blank manufacture |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB747940A (en) |
-
1954
- 1954-06-04 GB GB1665454A patent/GB747940A/en not_active Expired
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