GB721921A - Improvements in or relating to foundry moulding processes - Google Patents

Improvements in or relating to foundry moulding processes

Info

Publication number
GB721921A
GB721921A GB2043352A GB2043352A GB721921A GB 721921 A GB721921 A GB 721921A GB 2043352 A GB2043352 A GB 2043352A GB 2043352 A GB2043352 A GB 2043352A GB 721921 A GB721921 A GB 721921A
Authority
GB
United Kingdom
Prior art keywords
ram
pattern
investment material
relating
moulding processes
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
GB2043352A
Inventor
Frederick Leo Hillman
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.)
PNEULEC Ltd
Original Assignee
PNEULEC 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 PNEULEC Ltd filed Critical PNEULEC Ltd
Priority to GB2043352A priority Critical patent/GB721921A/en
Publication of GB721921A publication Critical patent/GB721921A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C23/00—Tools; Devices not mentioned before for moulding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Clamps And Clips (AREA)

Abstract

721,921. Moulding processes. PNEULEC, Ltd. Aug. 11, 1953 [Aug. 14, 1952], No. 20433/52. Class 83 (1). A process for shell moulding comprises mounting a heated pattern plate e on a turnover frame d adjacent an open topped container a for investment material, turning over the frame to clamp the pattern against the open end of the container, raising a ram c to force the investment material against the pattern, and after a predetermined time lowering the ram and returning the turnover frame to its original position for removal of the pattern plate and shell g. A yielding cushion of cellular or sponge rubber or the like may be located between the ram and the investment material.
GB2043352A 1952-08-14 1952-08-14 Improvements in or relating to foundry moulding processes Expired GB721921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2043352A GB721921A (en) 1952-08-14 1952-08-14 Improvements in or relating to foundry moulding processes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2043352A GB721921A (en) 1952-08-14 1952-08-14 Improvements in or relating to foundry moulding processes

Publications (1)

Publication Number Publication Date
GB721921A true GB721921A (en) 1955-01-12

Family

ID=10145863

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2043352A Expired GB721921A (en) 1952-08-14 1952-08-14 Improvements in or relating to foundry moulding processes

Country Status (1)

Country Link
GB (1) GB721921A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933789A (en) * 1956-09-26 1960-04-26 Dow Chemical Co Carbon-free shell molds
DE1159133B (en) * 1955-07-15 1963-12-12 Ind Foundry Materials Ltd Blow molding machine for the production of shell molds or cores for foundry purposes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1159133B (en) * 1955-07-15 1963-12-12 Ind Foundry Materials Ltd Blow molding machine for the production of shell molds or cores for foundry purposes
US2933789A (en) * 1956-09-26 1960-04-26 Dow Chemical Co Carbon-free shell molds

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