GB572390A - Improvements in the production of pre-stressed reinforced concrete sleepers and similar beams - Google Patents
Improvements in the production of pre-stressed reinforced concrete sleepers and similar beamsInfo
- Publication number
- GB572390A GB572390A GB1060343A GB1060343A GB572390A GB 572390 A GB572390 A GB 572390A GB 1060343 A GB1060343 A GB 1060343A GB 1060343 A GB1060343 A GB 1060343A GB 572390 A GB572390 A GB 572390A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- wires
- along
- moulds
- filled
- 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
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
Parallel reinforcing wires are placed in position in production lines and tensioned, a mould is assembled around the wires at the mould-filling station, and the mould is filled with concrete and then slid along the production line (and along the wires). The mould can slide by reason of the provision of slotted end-plates 23 thereon (see Specification 572,387). The reinforcing wires are stretched between upright pedestals extending along the line. The mould-filling station may be at one end of the line, the moulds being assembled around the wires, filled, vibrated, and slid in turn along the wires to the other end, where the concrete is allowed to set; at the setting position the concrete may be vibrated again. Alternatively, the mould-filling station may be at a mid-position in the line, the filled moulds being slid along the wires in either direction. The moulds may run on rollers, or may be provided with rollers or wheels, or may rest on trolleys having rollers or wheels, or may be partly or wholly supported by the wires. The filled mould may be slid only far enough to enable a second mould to be brought into filling position, this second mould being coupled to the first, and so on, each succeeding mould being coupled to the preceding mould and the whole train being pulled along the wires step-by-step to the setting station. There may be several parallel production lines, and the lines may be on more than one level, e.g. in two tiers. The moulds may be arranged in pairs, side by side. The apparatus used may be the same as that described in Specification 572,385. If a hold-up occurs, the wires are cleaned by the attrition device described in Specification 572,396. Specifications 338,864, [Class 87 (ii)], 364,621, 393,576 and 572,388 also are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1060343A GB572390A (en) | 1943-06-20 | 1943-06-20 | Improvements in the production of pre-stressed reinforced concrete sleepers and similar beams |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1060343A GB572390A (en) | 1943-06-20 | 1943-06-20 | Improvements in the production of pre-stressed reinforced concrete sleepers and similar beams |
Publications (1)
Publication Number | Publication Date |
---|---|
GB572390A true GB572390A (en) | 1945-10-05 |
Family
ID=9970887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1060343A Expired GB572390A (en) | 1943-06-20 | 1943-06-20 | Improvements in the production of pre-stressed reinforced concrete sleepers and similar beams |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB572390A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2352647A1 (en) * | 1976-05-25 | 1977-12-23 | Dow Mac Concrete Ltd | Concrete railway sleeper casting plant - moulds raised for insertion of stressing wires, and passed down line |
EP0289017A1 (en) * | 1987-04-29 | 1988-11-02 | S.C.A.C. SOCIETA CEMENTI ARMATI CENTRIFUGATI S.p.A. | Plant to manufacture elongated elements of prestressed reinforced concrete |
CN114454326A (en) * | 2022-02-28 | 2022-05-10 | 中铁建(无锡)工程科技发展有限公司 | Concrete member production line |
-
1943
- 1943-06-20 GB GB1060343A patent/GB572390A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2352647A1 (en) * | 1976-05-25 | 1977-12-23 | Dow Mac Concrete Ltd | Concrete railway sleeper casting plant - moulds raised for insertion of stressing wires, and passed down line |
EP0289017A1 (en) * | 1987-04-29 | 1988-11-02 | S.C.A.C. SOCIETA CEMENTI ARMATI CENTRIFUGATI S.p.A. | Plant to manufacture elongated elements of prestressed reinforced concrete |
US4952129A (en) * | 1987-04-29 | 1990-08-28 | S.C.A.C. Societa Cementi Armati Centrifugati Spa | Plant to manufacture elongated elements of prestressed reinforced concrete |
CN114454326A (en) * | 2022-02-28 | 2022-05-10 | 中铁建(无锡)工程科技发展有限公司 | Concrete member production line |
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