GB355517A - Improved method of and apparatus for casting cement pipes - Google Patents

Improved method of and apparatus for casting cement pipes

Info

Publication number
GB355517A
GB355517A GB25872/30A GB2587230A GB355517A GB 355517 A GB355517 A GB 355517A GB 25872/30 A GB25872/30 A GB 25872/30A GB 2587230 A GB2587230 A GB 2587230A GB 355517 A GB355517 A GB 355517A
Authority
GB
United Kingdom
Prior art keywords
pipes
pipe
core
inflated
soc
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
GB25872/30A
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.)
Satujo SA De Construction De T
Original Assignee
Satujo SA De Construction De T
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 Satujo SA De Construction De T filed Critical Satujo SA De Construction De T
Publication of GB355517A publication Critical patent/GB355517A/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
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
    • B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
    • B28B21/18—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using expansible or retractable mould or core elements
    • B28B21/20—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using expansible or retractable mould or core elements using inflatable cores, e.g. having a frame inside the inflatable part of the core
    • 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
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/86—Cores
    • B28B21/88—Cores adjustable, collapsible or expansible

Abstract

355,517. Moulds for pipes and tubes. SOC. SATUJO SOC. ANON. DE CONSTRUCTION DE TUYAUX SANS JOINTS, 40, Avenue de la Bourdonnais, Paris.- (Assignees of Cravetto, A. ; Chateau de la Tour, Avenue des Baumettes, Nice, France.) Aug. 29, 1930, No. 25872. Convention date, Aug. 31, 1929. [Class 87 (ii).] A hollow core for moulding cement pipes consists of an impervious flexible hose a which is adapted to be inflated by water under pressure or compressed air, and has a rope c attached by which it may be stripped from the pipe b by turning it inside out. The water or air is maintained at a suitable pressure by a pump and gauge and after the cement has hardened the core is deflated and removed. The pipe is coated internally with tar by means of compressed air to render it watertight. In order to facilitate the casting of a further section a length of sheet-metal piping is embedded in the end of the completed section of the pipe with half its length projecting. This permits the core hose to be inflated without deforming the completed section. Pipes may be produced from 0À005 up to and over 1 00 metre in diameter.
GB25872/30A 1929-08-31 1930-08-29 Improved method of and apparatus for casting cement pipes Expired GB355517A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR355517X 1929-08-31

Publications (1)

Publication Number Publication Date
GB355517A true GB355517A (en) 1931-08-27

Family

ID=8893388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25872/30A Expired GB355517A (en) 1929-08-31 1930-08-29 Improved method of and apparatus for casting cement pipes

Country Status (1)

Country Link
GB (1) GB355517A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513527A (en) * 1940-06-17 1950-07-04 Sjodin Olof Viktor Apparatus and method for molding hollow structures of concrete and the like
US2618832A (en) * 1948-10-20 1952-11-25 Theodore O Zschokke Casting apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513527A (en) * 1940-06-17 1950-07-04 Sjodin Olof Viktor Apparatus and method for molding hollow structures of concrete and the like
US2618832A (en) * 1948-10-20 1952-11-25 Theodore O Zschokke Casting apparatus

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