AT349957B - EXTENSIBLE CORE FORMWORK FOR THE PRODUCTION OF HOLLOW ELEMENTS FROM CONCRETE OD. DGL. - Google Patents

EXTENSIBLE CORE FORMWORK FOR THE PRODUCTION OF HOLLOW ELEMENTS FROM CONCRETE OD. DGL.

Info

Publication number
AT349957B
AT349957B AT994874A AT994874A AT349957B AT 349957 B AT349957 B AT 349957B AT 994874 A AT994874 A AT 994874A AT 994874 A AT994874 A AT 994874A AT 349957 B AT349957 B AT 349957B
Authority
AT
Austria
Prior art keywords
dgl
concrete
production
hollow elements
core formwork
Prior art date
Application number
AT994874A
Other languages
German (de)
Other versions
ATA994874A (en
Inventor
Wolfgang Ing Reymann
Original Assignee
Weidinger Josef
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Weidinger Josef filed Critical Weidinger Josef
Publication of ATA994874A publication Critical patent/ATA994874A/en
Application granted granted Critical
Publication of AT349957B publication Critical patent/AT349957B/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
AT994874A 1974-11-13 1974-12-13 EXTENSIBLE CORE FORMWORK FOR THE PRODUCTION OF HOLLOW ELEMENTS FROM CONCRETE OD. DGL. AT349957B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742453706 DE2453706C2 (en) 1974-11-13 1974-11-13 One-piece core formwork for the production of large-area components with large-width cavities

Publications (2)

Publication Number Publication Date
ATA994874A ATA994874A (en) 1978-09-15
AT349957B true AT349957B (en) 1979-05-10

Family

ID=5930665

Family Applications (1)

Application Number Title Priority Date Filing Date
AT994874A AT349957B (en) 1974-11-13 1974-12-13 EXTENSIBLE CORE FORMWORK FOR THE PRODUCTION OF HOLLOW ELEMENTS FROM CONCRETE OD. DGL.

Country Status (5)

Country Link
AT (1) AT349957B (en)
BE (1) BE835559A (en)
DE (1) DE2453706C2 (en)
FR (1) FR2291332A1 (en)
NL (1) NL7513155A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2723113C2 (en) * 1977-05-23 1984-07-12 WKR Patentverwertungsgesellschaft mbH, 6833 Waghäusel Process for the production of concrete structural elements with cavities by means of one or more core formwork installed in an outer formwork
DE3235802C2 (en) * 1982-09-28 1985-06-20 WKR Patentverwertungsgesellschaft mbH, 6833 Waghäusel Core formwork for concrete components
IT1208962B (en) * 1983-05-30 1989-07-10 Verio Scarafoni EXPANDABLE ELEMENT WITH CONTROLLED EXPANSION AND AGENT BY MEANS OF PRESSURIZED FLUIDS.
FI123542B (en) * 2005-01-07 2013-06-28 Elematic Oy Ab Method, apparatus and forming part of a product for sliding molding of a concrete product

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE622845A (en) *
US2394261A (en) * 1944-11-08 1946-02-05 Vern E Reichard Core mold for walls
US2472068A (en) * 1946-05-22 1949-06-07 Farley Kathryn Expansible core for use in molding hollow concrete walls
FR1257624A (en) * 1954-09-07 1961-04-07 Process for manufacturing hollow monolithic concrete elements for floors, and construction elements obtained by this process
CH437735A (en) * 1966-03-04 1967-06-15 Nayagam Suzanne Formwork device
FR1479379A (en) * 1966-03-17 1967-05-05 T U J O Sa Improvements to recoverable formwork

Also Published As

Publication number Publication date
FR2291332B3 (en) 1979-06-29
FR2291332A1 (en) 1976-06-11
DE2453706A1 (en) 1976-05-20
DE2453706C2 (en) 1982-08-26
NL7513155A (en) 1976-05-17
BE835559A (en) 1976-03-01
ATA994874A (en) 1978-09-15

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee