GB250727A - Improved means for casting concrete culverts in situ - Google Patents

Improved means for casting concrete culverts in situ

Info

Publication number
GB250727A
GB250727A GB639625A GB639625A GB250727A GB 250727 A GB250727 A GB 250727A GB 639625 A GB639625 A GB 639625A GB 639625 A GB639625 A GB 639625A GB 250727 A GB250727 A GB 250727A
Authority
GB
United Kingdom
Prior art keywords
situ
culvert
improved means
casting
casting concrete
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
GB639625A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB639625A priority Critical patent/GB250727A/en
Publication of GB250727A publication Critical patent/GB250727A/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
    • B28B7/32—Cores; Mandrels adjustable, collapsible, or expanding inflatable

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Sewage (AREA)

Abstract

250,727. Nose, T. March 9, 1925. Moulding conduits in situ. - Culverts are moulded in situ by the use of a flexible core comprising an outer elastic portion 2 smaller in diameter than the bore to be formed, and a separate flexible inextensible portion 4, 5 slightly larger in diameter when inflated than the outer portion; after casting the inner portion is deflated and the outer portion contracts from the concrete and is easily withdrawn. The outer portion may be of rubber and the inner portion of rubberized canvas, leather, or the like, and strips of bamboo or the like may be placed between the outer and inner layers of the inner member when the culvert is straight. The core may be supported between crossed wires 8 which form the reinforcement for the culvert or between adjustable clamping members 12 in frames 7, 9, Fig. 5, which are removed as the casting proceeds.
GB639625A 1925-03-09 1925-03-09 Improved means for casting concrete culverts in situ Expired GB250727A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB639625A GB250727A (en) 1925-03-09 1925-03-09 Improved means for casting concrete culverts in situ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB639625A GB250727A (en) 1925-03-09 1925-03-09 Improved means for casting concrete culverts in situ

Publications (1)

Publication Number Publication Date
GB250727A true GB250727A (en) 1926-04-22

Family

ID=9813743

Family Applications (1)

Application Number Title Priority Date Filing Date
GB639625A Expired GB250727A (en) 1925-03-09 1925-03-09 Improved means for casting concrete culverts in situ

Country Status (1)

Country Link
GB (1) GB250727A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2188689A (en) * 1986-04-05 1987-10-07 Owen Gregory Gallagher Inflatable pipe shutter
WO2011114141A3 (en) * 2010-03-16 2011-11-10 John Anthony Douglas Bruce Durham Improvements in or relating to hollowcore slabs
CN105442464A (en) * 2015-12-31 2016-03-30 长安大学 Method for reinforcing culvert through corrugated steel pipes and consolidated sand
CN106426522A (en) * 2016-09-28 2017-02-22 周兆弟 Adjustable I-shaped pile mold

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2188689A (en) * 1986-04-05 1987-10-07 Owen Gregory Gallagher Inflatable pipe shutter
WO2011114141A3 (en) * 2010-03-16 2011-11-10 John Anthony Douglas Bruce Durham Improvements in or relating to hollowcore slabs
CN105442464A (en) * 2015-12-31 2016-03-30 长安大学 Method for reinforcing culvert through corrugated steel pipes and consolidated sand
CN105442464B (en) * 2015-12-31 2017-08-25 长安大学 The method that a kind of use corrugated steel tube and containing consolidated sand reinforce culvert
CN106426522A (en) * 2016-09-28 2017-02-22 周兆弟 Adjustable I-shaped pile mold
CN106426522B (en) * 2016-09-28 2020-12-15 周兆弟 Adjustable I-shaped pile die

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