GB1271557A - Improvements in and relating to the forming of the cross-section of seamless asbestos cement pipes - Google Patents

Improvements in and relating to the forming of the cross-section of seamless asbestos cement pipes

Info

Publication number
GB1271557A
GB1271557A GB5538269A GB5538269A GB1271557A GB 1271557 A GB1271557 A GB 1271557A GB 5538269 A GB5538269 A GB 5538269A GB 5538269 A GB5538269 A GB 5538269A GB 1271557 A GB1271557 A GB 1271557A
Authority
GB
United Kingdom
Prior art keywords
pipes
rails
cross
section
asbestos cement
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
GB5538269A
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.)
Seelze & Eichriede Fulgurit
Original Assignee
Seelze & Eichriede Fulgurit
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
Priority claimed from DE19681808526 external-priority patent/DE1808526C3/en
Application filed by Seelze & Eichriede Fulgurit filed Critical Seelze & Eichriede Fulgurit
Publication of GB1271557A publication Critical patent/GB1271557A/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
    • B28B21/92—Methods or apparatus for treating or reshaping
    • B28B21/98—Methods or apparatus for treating or reshaping for reshaping, e.g. by means of reshape moulds
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/08—Rigid pipes of concrete, cement, or asbestos cement, with or without reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B02C2018/188—Stationary counter-knives; Mountings thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

1,271,557. Moulding pipes. FULGURITWERKE SEELZE UND EICHRIEDE IN LUTHE BEI HANNOVER ADOLF OESTERHELD. 12 Nov., 1969 [13 Nov., 1968], No. 55382/69. Heading B5A. Deformable asbestos cement pipes of circular cross-section are shaped to a rectangular crosssection by inserting an expansible core comprising rails 1, 2 incorporating therebetween an expansible hose 7 so that when compressed air is fed thereinto from one end the rails are forced apart against the pipe interior and the rail 1 slides on bolts 3 fixed to the rail 2. One end of the hose is closed and has a vent. By appropriate shaping of the rails pipes of other cross-sections may be formed, i.e. pipes may be shaped from rectangular to circular form. The rails may be sub-divided to enable the dimension B to be reduced driving their introduction into the pipe.
GB5538269A 1968-11-13 1969-11-12 Improvements in and relating to the forming of the cross-section of seamless asbestos cement pipes Expired GB1271557A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681808526 DE1808526C3 (en) 1968-11-13 Device for forming seamless pipes made of asbestos cement

Publications (1)

Publication Number Publication Date
GB1271557A true GB1271557A (en) 1972-04-19

Family

ID=5713140

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5538269A Expired GB1271557A (en) 1968-11-13 1969-11-12 Improvements in and relating to the forming of the cross-section of seamless asbestos cement pipes

Country Status (9)

Country Link
AT (1) AT296128B (en)
BE (1) BE741651A (en)
CH (1) CH504290A (en)
DK (1) DK139463B (en)
FR (1) FR2023212A1 (en)
GB (1) GB1271557A (en)
IE (1) IE33637B1 (en)
NL (1) NL164499C (en)
NO (1) NO130101B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107599123A (en) * 2017-09-07 2018-01-19 韶关市欧莱高新材料有限公司 A kind of frock of tubular target injection forming mould
WO2019108126A1 (en) * 2017-11-29 2019-06-06 ST Engineering Aerospace Ltd. Core assembly for moulding and method of moulding thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1208962B (en) * 1983-05-30 1989-07-10 Verio Scarafoni EXPANDABLE ELEMENT WITH CONTROLLED EXPANSION AND AGENT BY MEANS OF PRESSURIZED FLUIDS.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1332072A (en) * 1963-12-16
GB674986A (en) * 1949-08-31 1952-07-02 Charles Bernard Mathews Improvements in pneumatic cores for use in the moulding of hollow concrete articles
CH329470A (en) * 1954-01-08 1958-04-30 Widmer Erwin Process for deforming seamless tubes made of plastic material when heated
US3074140A (en) * 1960-04-18 1963-01-22 Martin Marietta Corp Means for forming voids in concrete products
FR1301155A (en) * 1961-09-15 1962-08-10 Process for transforming a cylindrical pipe to obtain an element with a square or other section and industrial product obtained
FR1543246A (en) * 1967-07-05 1968-10-25 Thermoplastic tube forming

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107599123A (en) * 2017-09-07 2018-01-19 韶关市欧莱高新材料有限公司 A kind of frock of tubular target injection forming mould
WO2019108126A1 (en) * 2017-11-29 2019-06-06 ST Engineering Aerospace Ltd. Core assembly for moulding and method of moulding thereof

Also Published As

Publication number Publication date
IE33637B1 (en) 1974-09-04
DE1808526B2 (en) 1976-06-10
DK139463B (en) 1979-02-26
NO130101B (en) 1974-07-08
NL6917116A (en) 1970-05-15
BE741651A (en) 1970-04-16
NL164499C (en) 1981-01-15
IE33637L (en) 1970-05-13
DE1808526A1 (en) 1970-06-25
FR2023212A1 (en) 1970-08-07
DK139463C (en) 1979-08-06
CH504290A (en) 1971-03-15
AT296128B (en) 1972-01-25
NL164499B (en) 1980-08-15

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