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NL151925B - PROCESS FOR GRINDING FACETS ON A GEMSTONE, AND THEREFORE CUT GEMSTONE. - Google Patents

PROCESS FOR GRINDING FACETS ON A GEMSTONE, AND THEREFORE CUT GEMSTONE.

Info

Publication number
NL151925B
NL151925B NL676717192A NL6717192A NL151925B NL 151925 B NL151925 B NL 151925B NL 676717192 A NL676717192 A NL 676717192A NL 6717192 A NL6717192 A NL 6717192A NL 151925 B NL151925 B NL 151925B
Authority
NL
Netherlands
Prior art keywords
gemstone
cut
grinding facets
facets
grinding
Prior art date
Application number
NL676717192A
Other languages
Dutch (nl)
Other versions
NL6717192A (en
Original Assignee
Spectrum Diamonds Pty 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 Spectrum Diamonds Pty Ltd filed Critical Spectrum Diamonds Pty Ltd
Publication of NL6717192A publication Critical patent/NL6717192A/xx
Publication of NL151925B publication Critical patent/NL151925B/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C17/00—Gems or the like
    • A44C17/001—Faceting gems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/16—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of diamonds; of jewels or the like; Diamond grinders' dops; Dop holders or tongs
    • B24B9/161—Dops, dop holders

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
NL676717192A 1966-12-20 1967-12-18 PROCESS FOR GRINDING FACETS ON A GEMSTONE, AND THEREFORE CUT GEMSTONE. NL151925B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB56979/66A GB1206937A (en) 1966-12-20 1966-12-20 Improvements relating to gem stones

Publications (2)

Publication Number Publication Date
NL6717192A NL6717192A (en) 1968-06-21
NL151925B true NL151925B (en) 1977-01-17

Family

ID=10478032

Family Applications (1)

Application Number Title Priority Date Filing Date
NL676717192A NL151925B (en) 1966-12-20 1967-12-18 PROCESS FOR GRINDING FACETS ON A GEMSTONE, AND THEREFORE CUT GEMSTONE.

Country Status (8)

Country Link
US (1) US3534510A (en)
JP (1) JPS5013997B1 (en)
BE (1) BE708309A (en)
ES (1) ES349075A1 (en)
FR (1) FR1548981A (en)
GB (1) GB1206937A (en)
IL (1) IL29124A (en)
NL (1) NL151925B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2088759B (en) * 1980-11-26 1985-03-06 Gersan Ets Gemstone polishing machine
US5072549A (en) * 1986-09-22 1991-12-17 Harold Johnston Method of cutting gemstones and product
NZ223499A (en) * 1988-02-11 1989-07-27 Keith Snelgrove Shaping vegetables by grinding
US5462474A (en) * 1994-05-24 1995-10-31 Ronald W. Swager Method of facetting a gem
BE1009003A3 (en) * 1994-12-20 1996-10-01 Wetenschappelijk En Tech Onder Method and device for grinding stones.
JP2000005993A (en) * 1998-06-17 2000-01-11 Hisatake Shudo Cutting method for diamond and proportion of diamond
US6604382B2 (en) 2000-11-07 2003-08-12 Naotake Shuto New-cut diamond shape
US20060026991A1 (en) * 2004-07-20 2006-02-09 Naotake Shuto Method for cutting diamond and diamond proportion
JP2009142455A (en) * 2007-12-14 2009-07-02 Juho:Kk Diamond, diamond-shaped jewelry, and its cutting method
US9226554B2 (en) 2014-05-12 2016-01-05 Yoshihiko Kodama Circular cut diamond

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2449423A (en) * 1943-09-01 1948-09-14 Spira Josef Hillel Bezel dop and grinding device
US2414598A (en) * 1945-01-01 1947-01-21 Klipper Joseph Method of grinding facets on precious stones

Also Published As

Publication number Publication date
GB1206937A (en) 1970-09-30
US3534510A (en) 1970-10-20
ES349075A1 (en) 1969-04-01
FR1548981A (en) 1968-12-06
JPS5013997B1 (en) 1975-05-23
NL6717192A (en) 1968-06-21
BE708309A (en) 1968-05-02
IL29124A (en) 1971-02-25

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