GB567149A - Improvements in or relating to sand-cores or moulds for use in foundries - Google Patents

Improvements in or relating to sand-cores or moulds for use in foundries

Info

Publication number
GB567149A
GB567149A GB1955543A GB1955543A GB567149A GB 567149 A GB567149 A GB 567149A GB 1955543 A GB1955543 A GB 1955543A GB 1955543 A GB1955543 A GB 1955543A GB 567149 A GB567149 A GB 567149A
Authority
GB
United Kingdom
Prior art keywords
box
moulds
plate
core
foundries
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
GB1955543A
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.)
DARWINS Ltd
Original Assignee
DARWINS 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 DARWINS Ltd filed Critical DARWINS Ltd
Priority to GB1955543A priority Critical patent/GB567149A/en
Publication of GB567149A publication Critical patent/GB567149A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C7/00Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/06Core boxes

Abstract

567,149. Clamping flasks and moulds. DARWINS, Ltd., and LINLEY, A. Nov. 23, 1943, No. 19555. [Class 83 (i)] A foundry core- or mould-box 6 has a ferromagnetic core-plate 5 covering one end thereof, to receive the core &c. when detached from the box, and the box has magnetic devices to hold the plate detachably. The magnetic devices are preferably embedded in two sides of the box 6 and may consist of a double electromagnet 23, Fig. 3, controlled by a switch which may pass a momentary current in the reverse direction when being switched off. In a modification, each device consists of three permanent magnets 8, 9, 10, Fig. 2, are arranged between polepieces 12, 13 which extend to the end of the box 6. The magnet 9 is mounted on a spindle 15 so that it can be turned through 180 degrees and thus neutralize the magneism of the magnets 8, 10 and release the plate 5.
GB1955543A 1943-11-23 1943-11-23 Improvements in or relating to sand-cores or moulds for use in foundries Expired GB567149A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1955543A GB567149A (en) 1943-11-23 1943-11-23 Improvements in or relating to sand-cores or moulds for use in foundries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1955543A GB567149A (en) 1943-11-23 1943-11-23 Improvements in or relating to sand-cores or moulds for use in foundries

Publications (1)

Publication Number Publication Date
GB567149A true GB567149A (en) 1945-01-30

Family

ID=10131325

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1955543A Expired GB567149A (en) 1943-11-23 1943-11-23 Improvements in or relating to sand-cores or moulds for use in foundries

Country Status (1)

Country Link
GB (1) GB567149A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989003737A1 (en) * 1987-10-31 1989-05-05 Harry Post Lining plate for the mould cavity of a boxless moulding machine
CN110039001A (en) * 2019-05-30 2019-07-23 广西玉柴机器股份有限公司 A kind of method and structure casting the anti-air inlet of upper core box gas vent

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989003737A1 (en) * 1987-10-31 1989-05-05 Harry Post Lining plate for the mould cavity of a boxless moulding machine
EP0315087A1 (en) * 1987-10-31 1989-05-10 Harry Post Lining for the moulding chamber of flaskless moulding machines
CN110039001A (en) * 2019-05-30 2019-07-23 广西玉柴机器股份有限公司 A kind of method and structure casting the anti-air inlet of upper core box gas vent

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