GB633802A - Improvements in and relating to the manufacture of coins - Google Patents

Improvements in and relating to the manufacture of coins

Info

Publication number
GB633802A
GB633802A GB2979847A GB2979847A GB633802A GB 633802 A GB633802 A GB 633802A GB 2979847 A GB2979847 A GB 2979847A GB 2979847 A GB2979847 A GB 2979847A GB 633802 A GB633802 A GB 633802A
Authority
GB
United Kingdom
Prior art keywords
per cent
coins
blanks
coin
dies
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
GB2979847A
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.)
METAL AND PLASTIC COMPACTS Ltd
Original Assignee
METAL AND PLASTIC COMPACTS 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 METAL AND PLASTIC COMPACTS Ltd filed Critical METAL AND PLASTIC COMPACTS Ltd
Priority to GB2979847A priority Critical patent/GB633802A/en
Publication of GB633802A publication Critical patent/GB633802A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)

Abstract

633,802. Making coins. METAL & PLASTIC COMPACTS, Ltd., and WILSDON, S. C. Nov. 8, 1947, No. 29798. [Classes 83 (ii) and 83 (iv)] Powder-metallurgy.-Coins or coin blanks are made by compressing and sintering metal powder. Mixed metal powders or alloy powders are compressed and sintered in an inert atmosphere either in successive steps or simultaneously, to form coin blanks for subsequent coining between dies. These blanks may be given a rough preliminary shaping during the compression, for example, so as to form a raised rim. Alternatively the compressing dies may be engraved so as to produce a finished coin. Suitable alloys comprise bronzes having 87-98 per cent copper and 13-2 per cent tin and nickel silver containing 10-30 per cent nickel and 90-70 per cent copper. Stainless ferrous alloys may be used.
GB2979847A 1947-11-08 1947-11-08 Improvements in and relating to the manufacture of coins Expired GB633802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2979847A GB633802A (en) 1947-11-08 1947-11-08 Improvements in and relating to the manufacture of coins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2979847A GB633802A (en) 1947-11-08 1947-11-08 Improvements in and relating to the manufacture of coins

Publications (1)

Publication Number Publication Date
GB633802A true GB633802A (en) 1949-12-30

Family

ID=10297322

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2979847A Expired GB633802A (en) 1947-11-08 1947-11-08 Improvements in and relating to the manufacture of coins

Country Status (1)

Country Link
GB (1) GB633802A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016020234A1 (en) * 2014-08-07 2016-02-11 Reischauer Gmbh Method for producing a stamping blank for coins and medals, stamping blank, and use of the stamping blank
WO2017063857A1 (en) * 2015-10-14 2017-04-20 Reischauer Gmbh Currency coin and method for producing same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016020234A1 (en) * 2014-08-07 2016-02-11 Reischauer Gmbh Method for producing a stamping blank for coins and medals, stamping blank, and use of the stamping blank
WO2017063857A1 (en) * 2015-10-14 2017-04-20 Reischauer Gmbh Currency coin and method for producing same

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