GB1446398A - Collapsible cores for moulds - Google Patents
Collapsible cores for mouldsInfo
- Publication number
- GB1446398A GB1446398A GB1387374A GB1387374A GB1446398A GB 1446398 A GB1446398 A GB 1446398A GB 1387374 A GB1387374 A GB 1387374A GB 1387374 A GB1387374 A GB 1387374A GB 1446398 A GB1446398 A GB 1446398A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- slide
- side members
- lock
- struts
- 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
- B28B7/303—Cores; Mandrels adjustable, collapsible, or expanding specially for making undercut recesses or continuous cavities the inner section of which is superior to the section of either of the mouths
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
1446398 Collapsible core DOW-MAC CONCRETE Ltd 4 Feb 1975 [28 March 1974] 13873/74 Heading B5A A U-shaped reinforced concrete beam A is cast around a core 3 comprising side members 6a mounted by pivoted links 15, 16 to a slide 17 moving on a central support 8. An attachment 18 of the slide is connected to lifting tackle 5, and includes a lock 19. The side members 6a, which are constructed from detachable, interchangeable sections, are guided by links 12 running along slots 14 in the core base 10, which is rigid with the central support 8. A plurality of supports 8 are mounted on pairs of cross-bars 4 that support mould side walls 2. In use.-The slide 17 is locked by the lock 19 in its lowermost position, to hold the core side members 6a in abutment with the core base 10 for moulding. The core is centralized by screws 21 abutting the struts 4. After moulding, the lock 19 is undone and the tackle 5 is raised to lift the slide 17, pivot the side members 6a upwardly and inwardly, to collapse the core, and finally to pivot the struts 4 and so swing the mould side walls 2 outwardly (see Specification 1,325,261) away from the moulded beam A (see Fig. 2, not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1387374A GB1446398A (en) | 1974-03-28 | 1974-03-28 | Collapsible cores for moulds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1387374A GB1446398A (en) | 1974-03-28 | 1974-03-28 | Collapsible cores for moulds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1446398A true GB1446398A (en) | 1976-08-18 |
Family
ID=10030943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1387374A Expired GB1446398A (en) | 1974-03-28 | 1974-03-28 | Collapsible cores for moulds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1446398A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120175814A1 (en) * | 2011-01-10 | 2012-07-12 | O'neill Raymond | Method of and machine for manufacturing concrete u-wall type construction elements and method of operating the same |
| US9644334B2 (en) | 2013-08-19 | 2017-05-09 | Stable Concrete Structures, Inc. | Methods of and systems for controlling water flow, breaking water waves and reducing surface erosion along rivers, streams, waterways and coastal regions |
| CN106939793A (en) * | 2017-04-21 | 2017-07-11 | 四川省创力隧道机械设备有限公司 | It is easy to the tunnel central trench chassis efficiently constructed |
| CN106965301A (en) * | 2017-04-18 | 2017-07-21 | 刘嵩 | The rapid mould opening-closing mould and preparation method of a kind of new precast concrete beam column component |
| CN107060044A (en) * | 2017-06-14 | 2017-08-18 | 叶良平 | A kind of one-time-shaped mould and its application method for being used to pour groove |
| CN108098982A (en) * | 2018-01-17 | 2018-06-01 | 中国铁道科学研究院 | Large-span Precast box beam hydraulic deploying and retracting internal mold |
| CN114102849A (en) * | 2021-11-25 | 2022-03-01 | 江西泽皓电气科技有限公司 | Machining die and manufacturing method for assembly type electric power box body foundation |
| CN115070908A (en) * | 2022-06-01 | 2022-09-20 | 中交第四公路工程局有限公司 | Method and device for fixing and disassembling prefabricated box girder integrally |
-
1974
- 1974-03-28 GB GB1387374A patent/GB1446398A/en not_active Expired
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10053832B2 (en) | 2011-01-10 | 2018-08-21 | Stable Concrete Structures, Inc. | Molded concrete U-wall construction block employing a metal reinforcement cage having stem reinforcement portions with open apertures formed therein for multiple purposes |
| US8888481B2 (en) * | 2011-01-10 | 2014-11-18 | Stable Concrete Structures, Inc. | Machine for manufacturing concrete U-wall type construction blocks by molding each concrete U-wall construction block from concrete poured about a block cage made from reinforcing material while said block cage is loaded within said machine |
| US9630342B2 (en) | 2011-01-10 | 2017-04-25 | Stable Concrete Structures, Inc. | Machine for manufacturing concrete uwall type construction blocks by molding each concrete U-wall construction block from concrete poured about a block cage made from reinforcing material while said block cage is loaded with said machine |
| US20120175814A1 (en) * | 2011-01-10 | 2012-07-12 | O'neill Raymond | Method of and machine for manufacturing concrete u-wall type construction elements and method of operating the same |
| US10443206B2 (en) | 2011-01-10 | 2019-10-15 | Stable Concrete Structures, Inc. | Block reinforcement cage having stem reinforcement portions with open apertures formed therein, for use in reinforcing a molded concrete U-wall construction block |
| US9644334B2 (en) | 2013-08-19 | 2017-05-09 | Stable Concrete Structures, Inc. | Methods of and systems for controlling water flow, breaking water waves and reducing surface erosion along rivers, streams, waterways and coastal regions |
| CN106965301A (en) * | 2017-04-18 | 2017-07-21 | 刘嵩 | The rapid mould opening-closing mould and preparation method of a kind of new precast concrete beam column component |
| CN106965301B (en) * | 2017-04-18 | 2022-08-30 | 苏州久力砼业机械有限公司 | Rapid mold opening and closing die for precast concrete beam column component and manufacturing method |
| CN106939793A (en) * | 2017-04-21 | 2017-07-11 | 四川省创力隧道机械设备有限公司 | It is easy to the tunnel central trench chassis efficiently constructed |
| CN107060044A (en) * | 2017-06-14 | 2017-08-18 | 叶良平 | A kind of one-time-shaped mould and its application method for being used to pour groove |
| CN107060044B (en) * | 2017-06-14 | 2022-12-20 | 四川省环茂工程机械设备有限公司 | One-step forming die for pouring groove and using method thereof |
| CN108098982A (en) * | 2018-01-17 | 2018-06-01 | 中国铁道科学研究院 | Large-span Precast box beam hydraulic deploying and retracting internal mold |
| CN108098982B (en) * | 2018-01-17 | 2024-04-12 | 中国铁道科学研究院 | Hydraulic retraction internal mold for large-span precast box girder |
| CN114102849A (en) * | 2021-11-25 | 2022-03-01 | 江西泽皓电气科技有限公司 | Machining die and manufacturing method for assembly type electric power box body foundation |
| CN115070908A (en) * | 2022-06-01 | 2022-09-20 | 中交第四公路工程局有限公司 | Method and device for fixing and disassembling prefabricated box girder integrally |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |