FR441173A - Process for the production of smooth hollow castings - Google Patents

Process for the production of smooth hollow castings

Info

Publication number
FR441173A
FR441173A FR441173DA FR441173A FR 441173 A FR441173 A FR 441173A FR 441173D A FR441173D A FR 441173DA FR 441173 A FR441173 A FR 441173A
Authority
FR
France
Prior art keywords
production
smooth hollow
hollow castings
castings
smooth
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
Carl Friedrich Eckert Jr
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.)
CARL FRIEDRICH ECKERT JR
Original Assignee
CARL FRIEDRICH ECKERT JR
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 CARL FRIEDRICH ECKERT JR filed Critical CARL FRIEDRICH ECKERT JR
Application granted granted Critical
Publication of FR441173A publication Critical patent/FR441173A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • B22C9/101—Permanent cores

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR441173D 1911-12-06 1912-03-11 Process for the production of smooth hollow castings Expired FR441173A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE441173X 1911-12-06

Publications (1)

Publication Number Publication Date
FR441173A true FR441173A (en) 1912-07-31

Family

ID=1482455

Family Applications (1)

Application Number Title Priority Date Filing Date
FR441173D Expired FR441173A (en) 1911-12-06 1912-03-11 Process for the production of smooth hollow castings

Country Status (1)

Country Link
FR (1) FR441173A (en)

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