GB784184A - Improvements in or relating to concrete beams - Google Patents

Improvements in or relating to concrete beams

Info

Publication number
GB784184A
GB784184A GB2586655A GB2586655A GB784184A GB 784184 A GB784184 A GB 784184A GB 2586655 A GB2586655 A GB 2586655A GB 2586655 A GB2586655 A GB 2586655A GB 784184 A GB784184 A GB 784184A
Authority
GB
United Kingdom
Prior art keywords
beams
wires
concrete
mould
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
GB2586655A
Inventor
William David Livingston
Ronald Frank King
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.)
LISTONE CONCRETE Ltd
Original Assignee
LISTONE CONCRETE 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 LISTONE CONCRETE Ltd filed Critical LISTONE CONCRETE Ltd
Priority to GB2586655A priority Critical patent/GB784184A/en
Publication of GB784184A publication Critical patent/GB784184A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

784,184. Cores and moulds for making concrete beams. LISTONE CONCRETE, Ltd. Sept. 9, 1955, No. 25866/55. Class 87(2). A hollow concrete beam is formed in a mould comprising a base 1 with removable or hinged side plates 8 and a core comprising tensioned wires 5 having an outer covering of paper or polythene or an inner, inflated polythene sleeve. The wires may be supported at intervals by rings 9 each of which may be cut at 9a and so pre-stressed that when moved by a wire attached to an eye 9b, it contracts to allow it to be withdrawn. The core may be made of various shapes by using various intermediate supports or by twisting the plates holding the ends of the wires. Two beams may be cast side by side. Several beams may be cast in each mould by providing partitions 6.
GB2586655A 1955-09-09 1955-09-09 Improvements in or relating to concrete beams Expired GB784184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2586655A GB784184A (en) 1955-09-09 1955-09-09 Improvements in or relating to concrete beams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2586655A GB784184A (en) 1955-09-09 1955-09-09 Improvements in or relating to concrete beams

Publications (1)

Publication Number Publication Date
GB784184A true GB784184A (en) 1957-10-02

Family

ID=10234637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2586655A Expired GB784184A (en) 1955-09-09 1955-09-09 Improvements in or relating to concrete beams

Country Status (1)

Country Link
GB (1) GB784184A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041702A (en) * 1957-10-15 1962-07-03 United States Steel Corp Method of making a prestressed reinforced concrete structure
US3072995A (en) * 1960-07-05 1963-01-15 Griffith Rubber Mills Method and device for casting voids
US3128521A (en) * 1959-10-05 1964-04-14 J L Cone Jr C W Cone Apparatus for molding pre-stressed concrete members
US4404156A (en) * 1981-08-03 1983-09-13 Ogletree Ronald K Method for making continuous fiber reinforced cast thermoplastic structures

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041702A (en) * 1957-10-15 1962-07-03 United States Steel Corp Method of making a prestressed reinforced concrete structure
US3128521A (en) * 1959-10-05 1964-04-14 J L Cone Jr C W Cone Apparatus for molding pre-stressed concrete members
US3072995A (en) * 1960-07-05 1963-01-15 Griffith Rubber Mills Method and device for casting voids
US4404156A (en) * 1981-08-03 1983-09-13 Ogletree Ronald K Method for making continuous fiber reinforced cast thermoplastic structures

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