GB469161A - Improvements in the manufacture of moulded articles with the aid of cores - Google Patents
Improvements in the manufacture of moulded articles with the aid of coresInfo
- Publication number
- GB469161A GB469161A GB26955/36A GB2695536A GB469161A GB 469161 A GB469161 A GB 469161A GB 26955/36 A GB26955/36 A GB 26955/36A GB 2695536 A GB2695536 A GB 2695536A GB 469161 A GB469161 A GB 469161A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cores
- concrete
- aid
- manufacture
- core
- 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
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/28—Cores; Mandrels
- B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
- B28B7/306—Cores; Mandrels adjustable, collapsible, or expanding pliable or extensible
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
469,161. Cores for moulding concrete &c. GIRARD, E. G. L. Oct. 5, 1936, No. 26955. Convention date, Oct. 7, 1935. [Class 87 (ii)] A core C for producing apertures B in elements A of concrete, mortar, &c. consists in a rubber tube reinforced with one or more helical springs 2 embedded in the rubber. When the concrete has set, the core is pulled in the direction of its length and is thereby elongated while being contracted in diameter and thus detached from the concrete &c. The core may be of circular or other crosssection.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR469161X | 1935-10-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB469161A true GB469161A (en) | 1937-07-20 |
Family
ID=8902408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26955/36A Expired GB469161A (en) | 1935-10-07 | 1936-10-05 | Improvements in the manufacture of moulded articles with the aid of cores |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB469161A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1060769B (en) * | 1951-02-28 | 1959-07-02 | Antonio Vittorio Locatelli | Blaehkoerper for hollow brick presses for the production of bricks with a square cross-section |
FR2493382A1 (en) * | 1980-10-31 | 1982-05-07 | Delmagyarorszagi Magas Melyepi | Casting concrete members with ducts - the ducts being formed by rubber rods or tubes removable by pulling |
GB2174034A (en) * | 1984-11-22 | 1986-10-29 | Bip Chemicals Ltd | Apparatus for manufacturing a building block |
CN111618984A (en) * | 2020-05-15 | 2020-09-04 | 河南交院工程技术有限公司 | Concrete spiral duct forming die and forming method |
CN114211591A (en) * | 2021-12-13 | 2022-03-22 | 广东海洋大学 | Method for manufacturing hollow porous insect model |
-
1936
- 1936-10-05 GB GB26955/36A patent/GB469161A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1060769B (en) * | 1951-02-28 | 1959-07-02 | Antonio Vittorio Locatelli | Blaehkoerper for hollow brick presses for the production of bricks with a square cross-section |
FR2493382A1 (en) * | 1980-10-31 | 1982-05-07 | Delmagyarorszagi Magas Melyepi | Casting concrete members with ducts - the ducts being formed by rubber rods or tubes removable by pulling |
GB2174034A (en) * | 1984-11-22 | 1986-10-29 | Bip Chemicals Ltd | Apparatus for manufacturing a building block |
CN111618984A (en) * | 2020-05-15 | 2020-09-04 | 河南交院工程技术有限公司 | Concrete spiral duct forming die and forming method |
CN114211591A (en) * | 2021-12-13 | 2022-03-22 | 广东海洋大学 | Method for manufacturing hollow porous insect model |
CN114211591B (en) * | 2021-12-13 | 2022-09-23 | 广东海洋大学 | Method for manufacturing hollow porous insect model |
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