GB508598A - Improved press for moulding powdered material - Google Patents
Improved press for moulding powdered materialInfo
- Publication number
- GB508598A GB508598A GB513738A GB513738A GB508598A GB 508598 A GB508598 A GB 508598A GB 513738 A GB513738 A GB 513738A GB 513738 A GB513738 A GB 513738A GB 508598 A GB508598 A GB 508598A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plunger
- mould
- box
- slide box
- moulding
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0005—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for briquetting presses
- B30B15/0017—Deairing means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
508,598. Moulding powdered materials. MACEY, H. H., and BRITISH REFRACTORIES RESEARCH ASSOCIATION. Feb. 18, 1938, No. 5137. [Class 87 (ii)] A press for moulding clay or other powdered material is provided with means for maintaining a zone of low pressure around the plunger and the mouth of an openmouthed mould during the approach of the plunger to the mouth of the mould, whereby air is removed and a dense brick or article is obtained. As shown, the press has a mould box 4, a lower plunger 8 and an upper plunger la. The plunger la is carried by a hollow plunger 1 having a slide box 2 provided with a peripheral rubber or like beading 7 adapted to make a tight joint with the top of the mould box. The plunger 1 is connected to a vacuum pump and has ports 3 adapted to be uncovered by the slide box when the plunger 1 descends. In operation, powder is placed in the mould box and the plungers move inwardly, part of the air in the mould and around the upper plunger passing through grooves 5 in the sides of the plunger 1. When that plunger descends further and into the position shown, the ends of the grooves 5 are closed by the slide box 2, and the ports 3 are uncovered. The final pressure is then applied. The upper plunger moves upwardly and projections 6 thereon raise the slide box 2, while the lower plunger rises to eject the moulded brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB513738A GB508598A (en) | 1938-02-18 | 1938-02-18 | Improved press for moulding powdered material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB513738A GB508598A (en) | 1938-02-18 | 1938-02-18 | Improved press for moulding powdered material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB508598A true GB508598A (en) | 1939-07-04 |
Family
ID=9790391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB513738A Expired GB508598A (en) | 1938-02-18 | 1938-02-18 | Improved press for moulding powdered material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB508598A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2415462A (en) * | 1943-08-10 | 1947-02-11 | Western Electric Co | Ceramic molding press |
| US2447415A (en) * | 1944-07-05 | 1948-08-17 | Lyon George Albert | Plastic forming apparatus and method |
| US2586148A (en) * | 1949-01-06 | 1952-02-19 | Clark Fred Harry | Means for the removal of air from finely divided material before consolidation under pressure |
| US2876492A (en) * | 1954-03-25 | 1959-03-10 | Frieder | Apparatus for molding plastic |
| EP0087584A2 (en) * | 1982-02-27 | 1983-09-07 | Rheinmetall GmbH | Device for making compressed bodies |
| US5182121A (en) * | 1989-10-11 | 1993-01-26 | Hitachi, Ltd. | Hot press |
-
1938
- 1938-02-18 GB GB513738A patent/GB508598A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2415462A (en) * | 1943-08-10 | 1947-02-11 | Western Electric Co | Ceramic molding press |
| US2447415A (en) * | 1944-07-05 | 1948-08-17 | Lyon George Albert | Plastic forming apparatus and method |
| US2586148A (en) * | 1949-01-06 | 1952-02-19 | Clark Fred Harry | Means for the removal of air from finely divided material before consolidation under pressure |
| US2876492A (en) * | 1954-03-25 | 1959-03-10 | Frieder | Apparatus for molding plastic |
| EP0087584A2 (en) * | 1982-02-27 | 1983-09-07 | Rheinmetall GmbH | Device for making compressed bodies |
| EP0087584A3 (en) * | 1982-02-27 | 1985-04-24 | Rheinmetall Gmbh | Device for making compressed bodies |
| US4545755A (en) * | 1982-02-27 | 1985-10-08 | Rheinmetall Gmbh | Apparatus for making a pressed body |
| US5182121A (en) * | 1989-10-11 | 1993-01-26 | Hitachi, Ltd. | Hot press |
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