IE39111L - Concrete products. - Google Patents
Concrete products.Info
- Publication number
- IE39111L IE39111L IE69774A IE69774A IE39111L IE 39111 L IE39111 L IE 39111L IE 69774 A IE69774 A IE 69774A IE 69774 A IE69774 A IE 69774A IE 39111 L IE39111 L IE 39111L
- Authority
- IE
- Ireland
- Prior art keywords
- vacuum
- cement
- moulds
- mould
- hopper
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
-
- 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
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/006—Pressing by atmospheric pressure, as a result of vacuum generation or by gas or liquid pressure acting directly upon the material, e.g. jets of compressed air
-
- 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
- B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
- B28B7/46—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for humidifying or dehumidifying
- B28B7/465—Applying setting liquid to dry mixtures
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
1466663 Wetting concrete G MATTHEWS RESEARCH & DEVELOPMENT CO Ltd 2 April 1974 [18 April 1973] 18737/73 Heading B5A Dry particulate material (e.g. cement with granite, or quick setting plaster of Paris with exfoliated mica) is placed in a mould, and a vacuum applied to a first portion of the surface of the material to cause compaction. Liquid (e.g. water) is applied to a second part of the surface for drawing in by the vacuum. Further compaction does not occur after the liquid has been applied to the surface. As described for moulding concrete articles, a wetted filter paper is placed in each of an endless procession of pivotally interconnected moulds 20 (Fig. 3), to the base of each of which a vacuum is supplied by a pair of pipes 28. A hopper 48 containing a dry white cement, granite and colour pigment moves along with, and above, a first mould, moves down into the mould, and distributes the coloured cement &c. on the filter paper. The hopper 48 then rises and moves back to an initial position due to a counterweight 49, to repeat the feeding with successive moulds. As the moulds pass beneath a hopper 33, coloured or uncoloured dry cement and granite are sprinkled to fill the moulds, and the cement is levelled by a roller 60, while compacted by the applied vacuum. Water is sprayed from a pipe 64 (or flooded on from a filter cloth endless belt) and sucked into the cements, and excess removed, by the vacuum. As each mould base contacts a fixed rail, the vacuum is released from the contacting mould and replaced by a positive pressure that discharges the concrete article on to a pallet and carrier 66 (Fig. 7). The filter paper protects the concrete surface. The carrier moves along an inclined rail 68 to deposit the pallet on intermittently moving endless chains 70 (Fig. 3 also), and returns upwards with a fresh pallet to receive the next discharged article. One or both major surfaces of an article are textured or given an exposed aggregate finish. Moulds and vacuum.-Each mould 20 is open-topped and over its base receives in succession a wire or plastics mesh (or the base is channelled to define a grid), an apertured plate, the filter paper and a second apertured plate acting as a template to give an embossed surface to the concrete. The vacuum is applied to the bases of two moulds by pipes wound in opposition on a drum, and is fed to the remaining mould bases by interconnecting pipes. One of the drum wound pipes includes a concentric pipe leading to a positive pressure source. Hoppers.-The hopper 48 includes a wire mesh base and pattern plate through which material is fed by reciprocated scraper blades (51) (see Fig. 10, not reproduced). Hopper 33 includes an upstream outlet that sprinkles cement through a scalloped plate, to prevent disturbance of the coloured cement, and a downstream outlet that applies cement in bulk to fill the moulds.
[GB1466663A]
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1873773A GB1466663A (en) | 1973-04-18 | 1973-04-18 | Producing products from dry particulate material and a liquid |
Publications (2)
Publication Number | Publication Date |
---|---|
IE39111L true IE39111L (en) | 1974-10-18 |
IE39111B1 IE39111B1 (en) | 1978-08-02 |
Family
ID=10117549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE69774A IE39111B1 (en) | 1973-04-18 | 1974-04-01 | Producing products from dry particulate material and a liquid |
Country Status (13)
Country | Link |
---|---|
JP (1) | JPS5030918A (en) |
BE (1) | BE813890A (en) |
CA (1) | CA1048240A (en) |
CH (1) | CH584598A5 (en) |
DE (1) | DE2417553A1 (en) |
ES (1) | ES425484A1 (en) |
FR (1) | FR2226254A1 (en) |
GB (1) | GB1466663A (en) |
IE (1) | IE39111B1 (en) |
IT (1) | IT1005975B (en) |
LU (1) | LU69888A1 (en) |
NL (1) | NL7405175A (en) |
SE (1) | SE397791B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980001888A1 (en) * | 1979-03-05 | 1980-09-18 | Bevan Ass C G | Moulding of construction products |
JPS5830196B2 (en) * | 1979-07-25 | 1983-06-27 | 日本鋼管株式会社 | Sway reduction method |
JPH0213882B2 (en) * | 1980-01-07 | 1990-04-05 | Shii Jii Beban Asoosheitsu Ltd | |
EP0150519A1 (en) * | 1984-01-30 | 1985-08-07 | Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO | Method for producing an object of a composite material consisting of a body of a porous material and another material infiltrated into said body |
FR2945234B1 (en) | 2009-05-11 | 2011-04-29 | Lafarge Sa | MOLDING DEVICE AND METHOD OF MANUFACTURING |
CN104476979A (en) * | 2015-01-03 | 2015-04-01 | 李�浩 | Special handicraft picture making method |
CN114211644B (en) * | 2021-12-21 | 2023-12-05 | 常州聚曜科技有限公司 | Drying hopper for plastic product processing |
-
1973
- 1973-04-18 GB GB1873773A patent/GB1466663A/en not_active Expired
-
1974
- 1974-04-01 IE IE69774A patent/IE39111B1/en unknown
- 1974-04-02 CA CA74196632A patent/CA1048240A/en not_active Expired
- 1974-04-10 DE DE19742417553 patent/DE2417553A1/en active Pending
- 1974-04-11 CH CH517174A patent/CH584598A5/xx not_active IP Right Cessation
- 1974-04-16 FR FR7413127A patent/FR2226254A1/fr not_active Withdrawn
- 1974-04-16 SE SE7405097A patent/SE397791B/en unknown
- 1974-04-17 IT IT5042674A patent/IT1005975B/en active
- 1974-04-17 NL NL7405175A patent/NL7405175A/xx not_active Application Discontinuation
- 1974-04-18 LU LU69888A patent/LU69888A1/xx unknown
- 1974-04-18 ES ES425484A patent/ES425484A1/en not_active Expired
- 1974-04-18 JP JP4384574A patent/JPS5030918A/ja active Pending
- 1974-04-18 BE BE143352A patent/BE813890A/en unknown
Also Published As
Publication number | Publication date |
---|---|
NL7405175A (en) | 1974-10-22 |
CH584598A5 (en) | 1977-02-15 |
LU69888A1 (en) | 1974-07-18 |
IE39111B1 (en) | 1978-08-02 |
SE397791B (en) | 1977-11-21 |
ES425484A1 (en) | 1976-11-16 |
GB1466663A (en) | 1977-03-09 |
IT1005975B (en) | 1976-09-30 |
FR2226254A1 (en) | 1974-11-15 |
CA1048240A (en) | 1979-02-13 |
BE813890A (en) | 1974-10-18 |
JPS5030918A (en) | 1975-03-27 |
DE2417553A1 (en) | 1974-11-14 |
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