GB469161A - Improvements in the manufacture of moulded articles with the aid of cores - Google Patents

Improvements in the manufacture of moulded articles with the aid of cores

Info

Publication number
GB469161A
GB469161A GB26955/36A GB2695536A GB469161A GB 469161 A GB469161 A GB 469161A GB 26955/36 A GB26955/36 A GB 26955/36A GB 2695536 A GB2695536 A GB 2695536A GB 469161 A GB469161 A GB 469161A
Authority
GB
United Kingdom
Prior art keywords
cores
concrete
aid
manufacture
core
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
Application number
GB26955/36A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EMILE GUSTAVE LOUIS GIRARD
Original Assignee
EMILE GUSTAVE LOUIS GIRARD
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 EMILE GUSTAVE LOUIS GIRARD filed Critical EMILE GUSTAVE LOUIS GIRARD
Publication of GB469161A publication Critical patent/GB469161A/en
Expired legal-status Critical Current

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
    • B28B7/306—Cores; Mandrels adjustable, collapsible, or expanding pliable or extensible

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Abstract

469,161. Cores for moulding concrete &c. GIRARD, E. G. L. Oct. 5, 1936, No. 26955. Convention date, Oct. 7, 1935. [Class 87 (ii)] A core C for producing apertures B in elements A of concrete, mortar, &c. consists in a rubber tube reinforced with one or more helical springs 2 embedded in the rubber. When the concrete has set, the core is pulled in the direction of its length and is thereby elongated while being contracted in diameter and thus detached from the concrete &c. The core may be of circular or other crosssection.
GB26955/36A 1935-10-07 1936-10-05 Improvements in the manufacture of moulded articles with the aid of cores Expired GB469161A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR469161X 1935-10-07

Publications (1)

Publication Number Publication Date
GB469161A true GB469161A (en) 1937-07-20

Family

ID=8902408

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26955/36A Expired GB469161A (en) 1935-10-07 1936-10-05 Improvements in the manufacture of moulded articles with the aid of cores

Country Status (1)

Country Link
GB (1) GB469161A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1060769B (en) * 1951-02-28 1959-07-02 Antonio Vittorio Locatelli Blaehkoerper for hollow brick presses for the production of bricks with a square cross-section
FR2493382A1 (en) * 1980-10-31 1982-05-07 Delmagyarorszagi Magas Melyepi Casting concrete members with ducts - the ducts being formed by rubber rods or tubes removable by pulling
GB2174034A (en) * 1984-11-22 1986-10-29 Bip Chemicals Ltd Apparatus for manufacturing a building block
CN111618984A (en) * 2020-05-15 2020-09-04 河南交院工程技术有限公司 Concrete spiral duct forming die and forming method
CN114211591A (en) * 2021-12-13 2022-03-22 广东海洋大学 Method for manufacturing hollow porous insect model

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1060769B (en) * 1951-02-28 1959-07-02 Antonio Vittorio Locatelli Blaehkoerper for hollow brick presses for the production of bricks with a square cross-section
FR2493382A1 (en) * 1980-10-31 1982-05-07 Delmagyarorszagi Magas Melyepi Casting concrete members with ducts - the ducts being formed by rubber rods or tubes removable by pulling
GB2174034A (en) * 1984-11-22 1986-10-29 Bip Chemicals Ltd Apparatus for manufacturing a building block
CN111618984A (en) * 2020-05-15 2020-09-04 河南交院工程技术有限公司 Concrete spiral duct forming die and forming method
CN114211591A (en) * 2021-12-13 2022-03-22 广东海洋大学 Method for manufacturing hollow porous insect model
CN114211591B (en) * 2021-12-13 2022-09-23 广东海洋大学 Method for manufacturing hollow porous insect model

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