NL171240C - Inrichting te gebruiken bij de vervaardiging van betonprodukten met een doorgang en een daarop aansluitende gleuf naar het bovenvlak. - Google Patents
Inrichting te gebruiken bij de vervaardiging van betonprodukten met een doorgang en een daarop aansluitende gleuf naar het bovenvlak.Info
- Publication number
- NL171240C NL171240C NL7213932A NL7213932A NL171240C NL 171240 C NL171240 C NL 171240C NL 7213932 A NL7213932 A NL 7213932A NL 7213932 A NL7213932 A NL 7213932A NL 171240 C NL171240 C NL 171240C
- Authority
- NL
- Netherlands
- Prior art keywords
- passage
- manufacture
- top surface
- concrete products
- adjoining slot
- Prior art date
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
-
- 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)
- Sewage (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4855671 | 1971-10-19 | ||
GB2581472A GB1403985A (en) | 1971-10-19 | 1972-06-02 | Apparatus for use in the manufacture of drainage blocks |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7213932A NL7213932A (nl) | 1973-04-25 |
NL171240B NL171240B (nl) | 1982-10-01 |
NL171240C true NL171240C (nl) | 1983-03-01 |
Family
ID=26257892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7213932A NL171240C (nl) | 1971-10-19 | 1972-10-13 | Inrichting te gebruiken bij de vervaardiging van betonprodukten met een doorgang en een daarop aansluitende gleuf naar het bovenvlak. |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS4849815A (nl) |
AU (1) | AU475606B2 (nl) |
CA (1) | CA978725A (nl) |
DE (1) | DE2250641C3 (nl) |
ES (1) | ES407731A1 (nl) |
FR (1) | FR2157667A5 (nl) |
GB (1) | GB1403985A (nl) |
IE (1) | IE38294B1 (nl) |
NL (1) | NL171240C (nl) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4950434A (en) * | 1985-04-29 | 1990-08-21 | Permaban Southeast, Inc. | Arrangement for the production of longitudinal screed slabs consisting of concrete |
MY131435A (en) * | 1993-06-23 | 2007-08-30 | Khoo Tian | A set of parts for use in building, and a method of using same |
EP3988268A1 (de) * | 2020-10-23 | 2022-04-27 | Georg Weidner | Herstellungssystem für baustoff-bauteile mit hohlkammer |
-
1972
- 1972-06-02 GB GB2581472A patent/GB1403985A/en not_active Expired
- 1972-10-05 IE IE135272A patent/IE38294B1/xx unknown
- 1972-10-06 CA CA153,415A patent/CA978725A/en not_active Expired
- 1972-10-12 AU AU47705/72A patent/AU475606B2/en not_active Expired
- 1972-10-13 NL NL7213932A patent/NL171240C/nl not_active IP Right Cessation
- 1972-10-16 DE DE19722250641 patent/DE2250641C3/de not_active Expired
- 1972-10-17 JP JP10327172A patent/JPS4849815A/ja active Pending
- 1972-10-18 FR FR7237556A patent/FR2157667A5/fr not_active Expired
- 1972-10-18 ES ES407731A patent/ES407731A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IE38294L (en) | 1973-04-19 |
GB1403985A (en) | 1975-08-28 |
NL171240B (nl) | 1982-10-01 |
ES407731A1 (es) | 1975-10-16 |
DE2250641C3 (de) | 1979-10-18 |
AU4770572A (en) | 1974-04-26 |
FR2157667A5 (nl) | 1973-06-01 |
DE2250641B2 (de) | 1979-03-01 |
IE38294B1 (en) | 1978-02-15 |
JPS4849815A (nl) | 1973-07-13 |
NL7213932A (nl) | 1973-04-25 |
AU475606B2 (en) | 1976-08-26 |
DE2250641A1 (de) | 1973-04-26 |
CA978725A (en) | 1975-12-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BC | A request for examination has been filed | ||
V1 | Lapsed because of non-payment of the annual fee |