GB351189A - Improvements in or relating to cutting tools made from sintered hard metal composition - Google Patents

Improvements in or relating to cutting tools made from sintered hard metal composition

Info

Publication number
GB351189A
GB351189A GB14841/30A GB1484130A GB351189A GB 351189 A GB351189 A GB 351189A GB 14841/30 A GB14841/30 A GB 14841/30A GB 1484130 A GB1484130 A GB 1484130A GB 351189 A GB351189 A GB 351189A
Authority
GB
United Kingdom
Prior art keywords
disc
discs
molybdenum
placing
tool
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
GB14841/30A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB351189A publication Critical patent/GB351189A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P5/00Setting gems or the like on metal parts, e.g. diamonds on tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

351,189. Grinding; cutting glass. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Taylor, G. F. ; 115, Balltown Road, Schenectady, New York, U.S.A.) May 14, 1930, No. 14841. Convention date, May 14, 1929. [Classes 56 and 60.] Grinding-wheels.-A disc tool for cutting glass &c. consists of a disc 14 about inch <1>/64 thick, of sintered tungsten carbide, molybdenum carbide, or other carbide and cobalt, or other metal of the iron group, welded to discs 12, 15 of relatively soft metal, for example, molybdenum, which are ground to expose a bevelled edge of the disc 14. The tool is formed in a carbon mould 1, by placing therein the molybdenum disc 12, placing thereon a mixture, which may contain water or starch paste as a binder, of from 97 per cent to 75 per cent of powdered tungsten carbide and the remainder of powdered cobalt, and placing the molybdenum disc 15 on the mixture. The discs are then compressed by a carbon plunger 6 and a press 17 to give about 1000 lbs. per square inch on the discs, and a current of electricity is passed from blocks 8 through the mould to raise the temperature to about 1375‹ C. ; a carbon rod 5 serves to form a central aperture in the disc. The completed tool may be mounted on a steel spindle 18, which may be brazed to the discs 12, 15. Specifications 288,521, [Class 82 (i), Metals, Extracting &c.], and 349,732 are referred to.
GB14841/30A 1929-05-14 1930-05-14 Improvements in or relating to cutting tools made from sintered hard metal composition Expired GB351189A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US351189XA 1929-05-14 1929-05-14

Publications (1)

Publication Number Publication Date
GB351189A true GB351189A (en) 1931-06-25

Family

ID=21880757

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14841/30A Expired GB351189A (en) 1929-05-14 1930-05-14 Improvements in or relating to cutting tools made from sintered hard metal composition

Country Status (1)

Country Link
GB (1) GB351189A (en)

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