GB451941A - Improvements in or relating to the formation of concrete structures - Google Patents

Improvements in or relating to the formation of concrete structures

Info

Publication number
GB451941A
GB451941A GB431435A GB431435A GB451941A GB 451941 A GB451941 A GB 451941A GB 431435 A GB431435 A GB 431435A GB 431435 A GB431435 A GB 431435A GB 451941 A GB451941 A GB 451941A
Authority
GB
United Kingdom
Prior art keywords
concrete
layers
layer
wound
shuttering
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
GB431435A
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 GB431435A priority Critical patent/GB451941A/en
Publication of GB451941A publication Critical patent/GB451941A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/061—Non-reusable forms

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

451,941. Casting in situ; conduits in structures. WARBURTON, R. E. L., 42, Rutland Gate, South Kensington, London. Feb. 11, 1935, No. 4314. [Class 20 (ii)] A tubular former used in casting hollow concrete structures consists of a plurality of spirally-wound or lap-wound layers of flexible strip material, one or more of the layers being coated or impregnated with a waterproofing medium. A number of layers 1, 2, 3 of strip material may be successively wound in spiral form over a mandrel as shown in Fig. 1, and an adhesive, such as bitumen, is applied between the layers 2, 3 during the winding operation. An outer coating of bitumen, synthetic resin varnish, cellulose, or wax is applied to the outside of the layer 3. A similar former may be produced by winding a sheet of cardboard or the like on a mandrel to form a lap-wound tube, the adhesive being applied to the inner side of the sheet. The strip material may consist of paper, cardboard, or chip-board. A concrete floor may be formed by casting a layer 7 of concrete on to shuttering 5 as shown in Fig. 3, positioning tubular forms 9 on this layer by means of spacers 8, and applying a second layer 10 of concrete so as to embed the formers and spacers. In forming a hollow wall, the tubular formers are supported within the shuttering for the lower section of the wall before the concrete is cast by means of spacing and supporting members independent of the shuttering. Any of the forms may serve as a conduit for cables, wires or pipes for various devices within the building. In a concrete road, the formers may form conduits for electricity supply or drainage systems.
GB431435A 1935-02-11 1935-02-11 Improvements in or relating to the formation of concrete structures Expired GB451941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB431435A GB451941A (en) 1935-02-11 1935-02-11 Improvements in or relating to the formation of concrete structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB431435A GB451941A (en) 1935-02-11 1935-02-11 Improvements in or relating to the formation of concrete structures

Publications (1)

Publication Number Publication Date
GB451941A true GB451941A (en) 1936-08-11

Family

ID=9774829

Family Applications (1)

Application Number Title Priority Date Filing Date
GB431435A Expired GB451941A (en) 1935-02-11 1935-02-11 Improvements in or relating to the formation of concrete structures

Country Status (1)

Country Link
GB (1) GB451941A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232174A (en) * 1989-05-16 1990-12-05 Tanaka Homes Co Ltd Concrete flooring base

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232174A (en) * 1989-05-16 1990-12-05 Tanaka Homes Co Ltd Concrete flooring base
GB2232174B (en) * 1989-05-16 1993-09-08 Tanaka Homes Co Ltd Concrete flooring base and construction thereof

Similar Documents

Publication Publication Date Title
US4576206A (en) Pipe insulation sleeve
US2179057A (en) Heat insulation
US2405330A (en) Insulating structure
US2836874A (en) Paper tube concrete form
GB451941A (en) Improvements in or relating to the formation of concrete structures
US1822475A (en) Multiple conduit
US2678863A (en) Cable reel
US1310715A (en) And gtjstave monrath
ES399397A1 (en) Method of laying wide asphaltic open mesh reinforced strips
US2156980A (en) Hot top
US1776254A (en) Sheathing
US1013291A (en) Method of applying pipe-covering.
GB349965A (en) Improvements in or relating to the manufacture of flexible tubes
GB405659A (en) Improvements in or relating to cement and concrete pipes, piles, poles or such like
US1387065A (en) Method of making reinforced molded conduits
US1299031A (en) Fiber container.
US1271211A (en) Manufacture of pipes, tubes, and like hollow bodies.
US2110975A (en) henderson
CH528255A (en) Distribution device for toilet paper wound on pipe cores
AT159837B (en) Heat insulating cladding body.
US1943977A (en) Insulated conductor
US1564625A (en) Waterproof plaster board and method of producing same
US1582173A (en) Fireproof floor construction
US1813084A (en) Metal-clad flashing material
JPS5835730Y2 (en) Water tunnel lining structure