GB1390965A - Manufacture of hollow clayware articles - Google Patents

Manufacture of hollow clayware articles

Info

Publication number
GB1390965A
GB1390965A GB2809172A GB2809172A GB1390965A GB 1390965 A GB1390965 A GB 1390965A GB 2809172 A GB2809172 A GB 2809172A GB 2809172 A GB2809172 A GB 2809172A GB 1390965 A GB1390965 A GB 1390965A
Authority
GB
United Kingdom
Prior art keywords
clay
mandrels
fired
mandrel
hollow
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
GB2809172A
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.)
Hepworth Iron Co Ltd
Original Assignee
Hepworth Iron Co 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 Hepworth Iron Co Ltd filed Critical Hepworth Iron Co Ltd
Priority to GB2809172A priority Critical patent/GB1390965A/en
Priority to IE960/73A priority patent/IE38059B1/en
Priority to ZA733998A priority patent/ZA733998B/en
Priority to AU56847/73A priority patent/AU471115B2/en
Priority to DD171511A priority patent/DD104458A5/en
Priority to BE132226A priority patent/BE800863A/en
Priority to IT68762/73A priority patent/IT986525B/en
Priority to CS4303A priority patent/CS166844B2/cs
Priority to US00369881A priority patent/US3822988A/en
Priority to ES415970A priority patent/ES415970A1/en
Priority to CA174,202A priority patent/CA1000937A/en
Priority to NLAANVRAGE7308391,A priority patent/NL172628C/en
Priority to FR7321931A priority patent/FR2190048A5/fr
Priority to DE2330620A priority patent/DE2330620C2/en
Publication of GB1390965A publication Critical patent/GB1390965A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

1390965 Sizing hollow clay articles HEPWORTH IRON CO Ltd 6 June 1973 [15 June 1972] 28091/72 Heading B5A [Also in Division C7] A mandrel having a co-efficient of expansion greater than fired clay is inserted within a hollow, unfired clay article, and the clay then fired. On cooling, the mandrel shrinks away from the clay to allow removal. As described, undersized steel mandrels 20, 22 are inserted one in each end of a moulded or extruded green clay pipe 10. The clay is heated up to 200‹ C. to reduce its moisture content to 1%, either supported on rings 18, 20 on a kiln car within an associated drying chamber, or on a roller drier conveyer. The clay is then fired at 1040‹ C., and becomes plastic and contracts on to the mandrels as the maximum temperature is reached. The clay is freeze-cooled by blown air to reduce the temperature to 700‹ C., when the mandrels can be removed. The mandrels can be inserted into the pipe at any time up to the clay becoming plastic. An iron/chromium/silicon ferritic alloy is described for the mandrel, having magnetic properties to aid insertion and removal. Spigots, sockets, and plain pipe ends can be sized.
GB2809172A 1972-06-15 1972-06-15 Manufacture of hollow clayware articles Expired GB1390965A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
GB2809172A GB1390965A (en) 1972-06-15 1972-06-15 Manufacture of hollow clayware articles
IE960/73A IE38059B1 (en) 1972-06-15 1973-06-12 Manufacture of hollow clayware articles
ZA733998A ZA733998B (en) 1972-06-15 1973-06-12 Manufacture of hollow clayware articles
AU56847/73A AU471115B2 (en) 1972-06-15 1973-06-12 Manufacture of hollow clayware articles
DD171511A DD104458A5 (en) 1972-06-15 1973-06-13 METHOD FOR DIMENSIONING A SOUND ITEM
BE132226A BE800863A (en) 1972-06-15 1973-06-13 MANUFACTURING OF HOLLOW CERAMIC MANUFACTURED PRODUCTS
IT68762/73A IT986525B (en) 1972-06-15 1973-06-14 PROCEDURE FOR CALIBRATING CERAMIC OBJECTS
CS4303A CS166844B2 (en) 1972-06-15 1973-06-14
US00369881A US3822988A (en) 1972-06-15 1973-06-14 Manufacture of hollow clayware articles
ES415970A ES415970A1 (en) 1972-06-15 1973-06-15 Manufacture of hollow clayware articles
CA174,202A CA1000937A (en) 1972-06-15 1973-06-15 Manufacture of hollow clayware articles
NLAANVRAGE7308391,A NL172628C (en) 1972-06-15 1973-06-15 METHOD FOR CUSTOMIZING A HOLLOW EARTH ARTICLE USING A THORN
FR7321931A FR2190048A5 (en) 1972-06-15 1973-06-15
DE2330620A DE2330620C2 (en) 1972-06-15 1973-06-15 Method for calibrating the internal dimensions of pottery, in particular clay pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2809172A GB1390965A (en) 1972-06-15 1972-06-15 Manufacture of hollow clayware articles

Publications (1)

Publication Number Publication Date
GB1390965A true GB1390965A (en) 1975-04-16

Family

ID=10270121

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2809172A Expired GB1390965A (en) 1972-06-15 1972-06-15 Manufacture of hollow clayware articles

Country Status (14)

Country Link
US (1) US3822988A (en)
AU (1) AU471115B2 (en)
BE (1) BE800863A (en)
CA (1) CA1000937A (en)
CS (1) CS166844B2 (en)
DD (1) DD104458A5 (en)
DE (1) DE2330620C2 (en)
ES (1) ES415970A1 (en)
FR (1) FR2190048A5 (en)
GB (1) GB1390965A (en)
IE (1) IE38059B1 (en)
IT (1) IT986525B (en)
NL (1) NL172628C (en)
ZA (1) ZA733998B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3625115A1 (en) * 1986-07-25 1988-01-28 Didier Werke Ag DEVICE FOR HOLDING A CERAMIC TUBE DURING THE BURNING

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1086166B (en) * 1958-09-26 1960-07-28 Hermann Muecher Device for the vertical stacking of socket pipes made of materials to be burned during the burning process

Also Published As

Publication number Publication date
DE2330620A1 (en) 1974-01-03
BE800863A (en) 1973-10-01
AU5684773A (en) 1974-12-12
CS166844B2 (en) 1976-03-29
US3822988A (en) 1974-07-09
DD104458A5 (en) 1974-03-12
CA1000937A (en) 1976-12-07
ZA733998B (en) 1974-05-29
NL172628B (en) 1983-05-02
AU471115B2 (en) 1976-04-08
IE38059B1 (en) 1977-12-21
IE38059L (en) 1973-12-15
DE2330620C2 (en) 1982-09-30
ES415970A1 (en) 1976-05-16
FR2190048A5 (en) 1974-01-25
IT986525B (en) 1975-01-30
NL172628C (en) 1983-10-03
NL7308391A (en) 1973-12-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee