GB785291A - An improved process for moulding or casting profiled articles - Google Patents
An improved process for moulding or casting profiled articlesInfo
- Publication number
- GB785291A GB785291A GB2965253A GB2965253A GB785291A GB 785291 A GB785291 A GB 785291A GB 2965253 A GB2965253 A GB 2965253A GB 2965253 A GB2965253 A GB 2965253A GB 785291 A GB785291 A GB 785291A
- Authority
- GB
- United Kingdom
- Prior art keywords
- templates
- plaster
- sheet
- cast
- model
- 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
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
785,291. Making plaster &c. moulds. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Jan. 27, 1955 [Oct. 27, 1953], No. 29652/53. Class 87(2). [Also in Group XXII] A method of moulding or casting a body having a curved or twisted surface includes setting up in spaced relationship two or more correctly profiled templates and stretching a sheet of pliable material in contact with the profiled edges of the templates and casting material against the sheet to form the body. The sheet may then be removed and the curved or twisted surface of the body used as a mould by casting an article, e.g. a model for a copying machine against said surface. In one embodiment, Figs. 1-3, templates, 3 having convex knife edges complementary to the profile of the concave surface of the blade which is to be copied from the cast model are adjustably mounted on a baseplate 1, and a rubber or neoprene sheet 7 is tensioned across the templates and held by clamps 8, 14. Plaster is then poured between the templates and into contact with the sheet 7 through holes 16 in the baseplate. The plaster cast, with inset templates on baseplate 1, is then mounted between side and end walls 17, 18 and the metal model cast in the mould thus formed. The model is preferably cast oversize to allow cleaning up, and the plaster is therefore scraped away to leave the templates a few thousandths of an inch proud of the plaster surface, thus producing reference lines 19 on the cast model. For models having a convex surface, the templates then having concave profiles, the sheet may be integral with, or constrained against the templates by, an inflatable cushion. In a modification, Fig. 4, a length 27, or overlapping strips, of pliable material such as linen backed tape is tensioned across the concave knife edges of the templates 3 and secured by adhesive to the end templates. Plaster is then introduced between the templates and above and in contact with the tape, the tape is removed and the metal poured into the tunnel formation of plaster and templates through a runner 30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2965253A GB785291A (en) | 1953-10-27 | 1953-10-27 | An improved process for moulding or casting profiled articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2965253A GB785291A (en) | 1953-10-27 | 1953-10-27 | An improved process for moulding or casting profiled articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB785291A true GB785291A (en) | 1957-10-23 |
Family
ID=10294956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2965253A Expired GB785291A (en) | 1953-10-27 | 1953-10-27 | An improved process for moulding or casting profiled articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB785291A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108500213A (en) * | 2017-02-27 | 2018-09-07 | 曼柴油机和涡轮机欧洲股份公司 | The method for manufacturing the toroidal cores of the nozzle ring for casting axial flow turbo-machine |
-
1953
- 1953-10-27 GB GB2965253A patent/GB785291A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108500213A (en) * | 2017-02-27 | 2018-09-07 | 曼柴油机和涡轮机欧洲股份公司 | The method for manufacturing the toroidal cores of the nozzle ring for casting axial flow turbo-machine |
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