FR510869A - Improvements to cores used in the manufacture of hollow plastic objects - Google Patents

Improvements to cores used in the manufacture of hollow plastic objects

Info

Publication number
FR510869A
FR510869A FR510869A FR510869DA FR510869A FR 510869 A FR510869 A FR 510869A FR 510869 A FR510869 A FR 510869A FR 510869D A FR510869D A FR 510869DA FR 510869 A FR510869 A FR 510869A
Authority
FR
France
Prior art keywords
manufacture
hollow plastic
cores used
plastic objects
cores
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
FR510869A
Other languages
French (fr)
Inventor
Charles Bernard Mathews
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 FR510869A publication Critical patent/FR510869A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
FR510869A 1919-03-01 1920-02-28 Improvements to cores used in the manufacture of hollow plastic objects Expired FR510869A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB510869X 1919-03-01

Publications (1)

Publication Number Publication Date
FR510869A true FR510869A (en) 1920-12-13

Family

ID=10458605

Family Applications (1)

Application Number Title Priority Date Filing Date
FR510869A Expired FR510869A (en) 1919-03-01 1920-02-28 Improvements to cores used in the manufacture of hollow plastic objects

Country Status (1)

Country Link
FR (1) FR510869A (en)

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