GB1363412A - Cast concrete structural units or the like and to apparatus and methods of their production - Google Patents

Cast concrete structural units or the like and to apparatus and methods of their production

Info

Publication number
GB1363412A
GB1363412A GB3415170A GB3415170A GB1363412A GB 1363412 A GB1363412 A GB 1363412A GB 3415170 A GB3415170 A GB 3415170A GB 3415170 A GB3415170 A GB 3415170A GB 1363412 A GB1363412 A GB 1363412A
Authority
GB
United Kingdom
Prior art keywords
concrete
sheath
holes
cast concrete
production
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
GB3415170A
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.)
MCBS Ltd
Original Assignee
MCBS Ltd
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 MCBS Ltd filed Critical MCBS Ltd
Priority to GB3415170A priority Critical patent/GB1363412A/en
Publication of GB1363412A publication Critical patent/GB1363412A/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
    • B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article

Landscapes

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

Abstract

1363412 Forming holes in cast concrete MCBS Ltd 11 Oct 1971 [14 July 1970] 34151/ 70 Heading E1S [Also in Division B5] A cavity is formed in a concrete article by a core comprising a rigid pin 15 surrounded by a flexible sheath 14. As described, a PVC sheath 14 is inserted through opposing holes 12, 13 in the walls 10, 11 of a sprung mould or shuttering. The holes 12, 13 are of smaller diameter than the sheath 14. A bright steel pin 15 is slid into the sheath 14, and after concrete casting is withdrawn by a handle 16. A blind cavity can be formed by strapping the handle 16 in position. The mould can be horizontal or vertical, and the concrete article formed in situ; bolt holes are formed by the core in concrete building columns, tunnel linings and facing panels.
GB3415170A 1971-10-11 1971-10-11 Cast concrete structural units or the like and to apparatus and methods of their production Expired GB1363412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3415170A GB1363412A (en) 1971-10-11 1971-10-11 Cast concrete structural units or the like and to apparatus and methods of their production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3415170A GB1363412A (en) 1971-10-11 1971-10-11 Cast concrete structural units or the like and to apparatus and methods of their production

Publications (1)

Publication Number Publication Date
GB1363412A true GB1363412A (en) 1974-08-14

Family

ID=10362022

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3415170A Expired GB1363412A (en) 1971-10-11 1971-10-11 Cast concrete structural units or the like and to apparatus and methods of their production

Country Status (1)

Country Link
GB (1) GB1363412A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB2436686A (en) * 2006-03-30 2007-10-03 Roxbury Ltd Ventilated foundation
CN118322339A (en) * 2024-06-14 2024-07-12 河南省第二建设集团有限公司 Manufacturing method of nonstandard prestressed hollow slab

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB2436686A (en) * 2006-03-30 2007-10-03 Roxbury Ltd Ventilated foundation
GB2436686B (en) * 2006-03-30 2011-06-15 Roxbury Ltd Foundation
CN118322339A (en) * 2024-06-14 2024-07-12 河南省第二建设集团有限公司 Manufacturing method of nonstandard prestressed hollow slab

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414E Application relinquished (sect. 14/1949)
CSNS Application of which complete specification have been accepted and published, but patent is not sealed