GB730674A - Improvements in and relating to the manufacture of products of concrete - Google Patents
Improvements in and relating to the manufacture of products of concreteInfo
- Publication number
- GB730674A GB730674A GB30765/52A GB3076552A GB730674A GB 730674 A GB730674 A GB 730674A GB 30765/52 A GB30765/52 A GB 30765/52A GB 3076552 A GB3076552 A GB 3076552A GB 730674 A GB730674 A GB 730674A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reinforcement
- concrete
- mould
- shaft
- sand
- 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
- B28B23/06—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 for the production of elongated articles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
730,674. Moulding reinforced concrete pipes &c. HEIDENSTAM, E. J. VON. Dec. 4, 1952 [Dec. 5, 1951], No. 30765/52. Class 87 (2). Reinforcements 19, particularly reinforcing wires, are stressed between two end holders, 21, 22 and are embedded in concrete, the concrete being shaped by means of a mould 9 that slides or rolls vertically upward along the stressed reinforcement, the concrete being filled into the mould during displacement of the mould along the reinforcement. Shortly before the mould reaches the upper reinforcement holder 22, viz. at position 33b, the moulding operation is stopped, the mould is raised towards holder 22 until it is clear of the concrete and occupies position 9a, and a new reinforcement holder 39 is secured to the reinforcement, this holder being supported by beam 38. The reinforcement is then cut above holder 39, the mould is raised, carrying with it beam 23 which initially supported holder 22, to a position above the upper edge of walls 40, and the mould may then be transported to a position above another shaft. The concrete products are later lifted out by attaching the upper ends of the reinforcements to a beam and raising the beam (Figs. 5 and 6, not shown). The drawings show plant comprising six vertical shafts 1 in each of which eight pipes or poles are cast by means of moulds 9. Through each mould extends the vertical reinforcement and horizontal reinforcement (not shown). A string of products may be made by using mould partition plates slotted to accommodate the reinforcement. The beams 23 rest on the walls 2 of the shaft. The reinforcement is supplied from reels 24. In pits 26, 28 at the bottom of the shafts is a supply of sand, clinker or other material 26, which may be filled into the shafts as casting proceeds, to support the freshly-cast concrete: in the case of pipes the sand &c., may also be filled thereinto. The moulds 9 are carried by a beam system 10 which can be raised or lowered by means of cables 11 attached to a drum 12 mounted on a carriage 13 running on rails 15 which encircle a central lift shaft 5. Shaft 5 provides for the transportation of material (concrete, sand) and has lifting mechanism 7 for a bucket 8, and balconies 6. Concrete is fed from hoppers to a mixer and thence down a shoot to the lift shaft 5. In operation, the moulds are filled with concrete and raised, and sand 25 is filled into the shaft until the moulded product reaches the position 33b; in each shaft the work is done by a man on a central platform 35 connected with the moulds, and as the platform rises a slot 45 in the wall of the shaft is closed by a jalousie (to keep the sand in: if sand or other filler is not used, the jalousie may be omitted). The longitudinal reinforcement of the product may be fitted with clamps to enable the product to be lifted (Figs. 5 and 6, not shown). A wheeled carriage having a lifting beam may run on the shaft walls (Fig. 7, not shown). In modified arrangements of plant, (a) (Figs. 8 and 9, not shown), eight shafts 1 may be arranged in two groups of four, facing each other, and (b) (Fig. 10, not shown) the shafts 1 are replaced by an annular space surrounding the lift shaft.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE730674X | 1951-12-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB730674A true GB730674A (en) | 1955-05-25 |
Family
ID=20317456
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30765/52A Expired GB730674A (en) | 1951-12-05 | 1952-12-04 | Improvements in and relating to the manufacture of products of concrete |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1010437B (en) |
GB (1) | GB730674A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1177537B (en) * | 1961-11-20 | 1964-09-03 | Siporex Int Ab | Plant for the production of reinforced lightweight concrete elements |
DE1262857B (en) * | 1962-06-27 | 1968-03-07 | R E T S A Soc Sa | Transportable bed |
DE1227371B (en) * | 1962-08-06 | 1966-10-20 | Erich Stockmann | Heated device for the production of prefabricated components |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE366525C (en) * | 1923-01-08 | Wilhelm Bell | Process and device for the production of transportable concrete structures of larger length with iron inserts | |
DE581572C (en) * | 1931-03-31 | 1933-09-16 | Schaefer Wilhelm | Device for making concrete slabs of all kinds |
-
1952
- 1952-12-04 GB GB30765/52A patent/GB730674A/en not_active Expired
- 1952-12-05 DE DEH14672A patent/DE1010437B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1010437B (en) | 1957-06-13 |
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