GB798551A - Improvements relating to the hardening of foundry cores or moulds by carbon dioxide - Google Patents

Improvements relating to the hardening of foundry cores or moulds by carbon dioxide

Info

Publication number
GB798551A
GB798551A GB366655A GB366655A GB798551A GB 798551 A GB798551 A GB 798551A GB 366655 A GB366655 A GB 366655A GB 366655 A GB366655 A GB 366655A GB 798551 A GB798551 A GB 798551A
Authority
GB
United Kingdom
Prior art keywords
gas
hardening
mould
box
head
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
GB366655A
Inventor
Richard Thomas Webster
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.)
PERRY BARR METAL Co Ltd
Original Assignee
PERRY BARR METAL Co 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 PERRY BARR METAL Co Ltd filed Critical PERRY BARR METAL Co Ltd
Priority to GB366655A priority Critical patent/GB798551A/en
Publication of GB798551A publication Critical patent/GB798551A/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
    • B22C9/12—Treating moulds or cores, e.g. drying, hardening
    • B22C9/123—Gas-hardening

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

798,551. Moulding-processes. PERRY BARR METAL CO., Ltd. April 20, 1956 [Feb. 8, 1955], No. 3666/55. Class 83 (1). Apparatus for hardening a mould or core by passing CO 2 gas through it, comprises a closurehead 5 having a flexible diaphragm 7 across its face. The head is applied to the mould or core-box 15 with the outlet-opening 10 in the diaphragm in register with the opening in the box, and gas is supplied under pressure to the head through the inlet 9, the diaphragm being thereby distended to establish close contact with the box. A pressure-sensitive switch 17 in the head controls a timing-circuit to give an operator warning when the gas has passed through the mould for a predetermined time, so that he may cut off gas flow.
GB366655A 1955-02-08 1955-02-08 Improvements relating to the hardening of foundry cores or moulds by carbon dioxide Expired GB798551A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB366655A GB798551A (en) 1955-02-08 1955-02-08 Improvements relating to the hardening of foundry cores or moulds by carbon dioxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB366655A GB798551A (en) 1955-02-08 1955-02-08 Improvements relating to the hardening of foundry cores or moulds by carbon dioxide

Publications (1)

Publication Number Publication Date
GB798551A true GB798551A (en) 1958-07-23

Family

ID=9762644

Family Applications (1)

Application Number Title Priority Date Filing Date
GB366655A Expired GB798551A (en) 1955-02-08 1955-02-08 Improvements relating to the hardening of foundry cores or moulds by carbon dioxide

Country Status (1)

Country Link
GB (1) GB798551A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5162393A (en) * 1991-04-25 1992-11-10 Foseco International Limited Production of foundry sand moulds and cores

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5162393A (en) * 1991-04-25 1992-11-10 Foseco International Limited Production of foundry sand moulds and cores

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