FR681056A - Mold for the manufacture of seamless cement pipes of any length - Google Patents

Mold for the manufacture of seamless cement pipes of any length

Info

Publication number
FR681056A
FR681056A FR681056DA FR681056A FR 681056 A FR681056 A FR 681056A FR 681056D A FR681056D A FR 681056DA FR 681056 A FR681056 A FR 681056A
Authority
FR
France
Prior art keywords
mold
manufacture
length
cement pipes
seamless
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
Other languages
French (fr)
Inventor
Antoine Cravetto
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 filed Critical
Application granted granted Critical
Publication of FR681056A publication Critical patent/FR681056A/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
    • B28B21/86—Cores
    • B28B21/88—Cores adjustable, collapsible or expansible

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
FR681056D 1929-08-31 1929-08-31 Mold for the manufacture of seamless cement pipes of any length Expired FR681056A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR681056T 1929-08-31

Publications (1)

Publication Number Publication Date
FR681056A true FR681056A (en) 1930-05-09

Family

ID=9022609

Family Applications (1)

Application Number Title Priority Date Filing Date
FR681056D Expired FR681056A (en) 1929-08-31 1929-08-31 Mold for the manufacture of seamless cement pipes of any length

Country Status (1)

Country Link
FR (1) FR681056A (en)

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