GB360318A - A new or improved method of pressing glassware - Google Patents
A new or improved method of pressing glasswareInfo
- Publication number
- GB360318A GB360318A GB6890/31A GB689031A GB360318A GB 360318 A GB360318 A GB 360318A GB 6890/31 A GB6890/31 A GB 6890/31A GB 689031 A GB689031 A GB 689031A GB 360318 A GB360318 A GB 360318A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- plunger
- glass
- pressed
- cavity
- 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
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
Abstract
360,318. Making pressed glassware. MACBETH-EVANS GLASS CO., Charleroi, Pennsylvania, U.S.A.-(Assignees of Sloan, T. H. ; Charleroi, Pennsylvania, U.S.A.) March 5, 1931, No. 6890. Convention date, April 9, 1930. [Class 56.] A method of making pressed ware consists in placing in a mould a mass of molten glass of less volume than the articleforming cavity between the mould and its plunger. The glass when pressed does not extend to the outer edge of the cavity, and an article formed in this way has an edge which is rounded and free from seams or cracks. A mould for pressing plates is shown in section in the Figure. The plunger 3 has a number of legs 6 which make contact with the rim 7 of the mould body 1 and ensure that the plates are of uniform thickness. The edge 5 of the moulding-cavity is open to the atmosphere to allow air to escape from the mould so that it does not restrain the lateral flow of 'the glass. The plunger may be cooled to prevent it from sticking to the pressed article, or the mould and plunger may be made of different metals having different heat conductivities.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US360318XA | 1930-04-09 | 1930-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB360318A true GB360318A (en) | 1931-11-05 |
Family
ID=21886216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6890/31A Expired GB360318A (en) | 1930-04-09 | 1931-03-05 | A new or improved method of pressing glassware |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB360318A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2677014A1 (en) * | 1991-06-03 | 1992-12-04 | Vidraria Santa Marina | PROCESS FOR ETCHING PRESSED GLASS, PARTICULARLY GRADUATIONS ON A METERING CONTAINER. |
| CN111212726A (en) * | 2017-10-13 | 2020-05-29 | 康宁股份有限公司 | Method and apparatus for pressing glass or glass-ceramic preform to form shaped plate, method for manufacturing liquid lens and liquid lens |
-
1931
- 1931-03-05 GB GB6890/31A patent/GB360318A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2677014A1 (en) * | 1991-06-03 | 1992-12-04 | Vidraria Santa Marina | PROCESS FOR ETCHING PRESSED GLASS, PARTICULARLY GRADUATIONS ON A METERING CONTAINER. |
| GB2256640A (en) * | 1991-06-03 | 1992-12-16 | Vidraria Santa Marina | Method and apparatus for marking moulded glass products |
| GB2256640B (en) * | 1991-06-03 | 1995-06-21 | Vidraria Santa Marina | Method and apparatus for marking moulded glass products |
| CN111212726A (en) * | 2017-10-13 | 2020-05-29 | 康宁股份有限公司 | Method and apparatus for pressing glass or glass-ceramic preform to form shaped plate, method for manufacturing liquid lens and liquid lens |
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