FR491298A - Manufacturing process, in construction materials, of beams and molded slabs provided with longitudinal channels - Google Patents

Manufacturing process, in construction materials, of beams and molded slabs provided with longitudinal channels

Info

Publication number
FR491298A
FR491298A FR491298DA FR491298A FR 491298 A FR491298 A FR 491298A FR 491298D A FR491298D A FR 491298DA FR 491298 A FR491298 A FR 491298A
Authority
FR
France
Prior art keywords
beams
manufacturing process
construction materials
longitudinal channels
molded slabs
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
Emile Bouvier
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
Application granted granted Critical
Publication of FR491298A publication Critical patent/FR491298A/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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/28—Cores; Mandrels
    • B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
    • B28B7/32—Cores; Mandrels adjustable, collapsible, or expanding inflatable

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
FR491298D 1918-08-19 1918-08-19 Manufacturing process, in construction materials, of beams and molded slabs provided with longitudinal channels Expired FR491298A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR491298T 1918-08-19

Publications (1)

Publication Number Publication Date
FR491298A true FR491298A (en) 1919-05-28

Family

ID=1527316

Family Applications (1)

Application Number Title Priority Date Filing Date
FR491298D Expired FR491298A (en) 1918-08-19 1918-08-19 Manufacturing process, in construction materials, of beams and molded slabs provided with longitudinal channels

Country Status (1)

Country Link
FR (1) FR491298A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612673A (en) * 1949-03-09 1952-10-07 Vacuum Concrete Inc Expansible molding core
EP0695611A3 (en) * 1994-08-04 1997-11-19 Marin Schnorr Process and device for making profiled tubular pressed articles from a material in a plastic state such as clay or similar

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612673A (en) * 1949-03-09 1952-10-07 Vacuum Concrete Inc Expansible molding core
EP0695611A3 (en) * 1994-08-04 1997-11-19 Marin Schnorr Process and device for making profiled tubular pressed articles from a material in a plastic state such as clay or similar

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