GB2212423B - Working a facet of a gemstone - Google Patents

Working a facet of a gemstone

Info

Publication number
GB2212423B
GB2212423B GB8826912A GB8826912A GB2212423B GB 2212423 B GB2212423 B GB 2212423B GB 8826912 A GB8826912 A GB 8826912A GB 8826912 A GB8826912 A GB 8826912A GB 2212423 B GB2212423 B GB 2212423B
Authority
GB
United Kingdom
Prior art keywords
gemstone
facet
working
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 - Lifetime
Application number
GB8826912A
Other versions
GB8826912D0 (en
GB2212423A (en
Inventor
Mark Christopher Hanna
Eric Jozef Gentil Blondeel
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.)
De Beers UK Ltd
Gersan Ets
Original Assignee
Diamond Trading Co Ltd
Gersan Ets
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 Diamond Trading Co Ltd, Gersan Ets filed Critical Diamond Trading Co Ltd
Publication of GB8826912D0 publication Critical patent/GB8826912D0/en
Publication of GB2212423A publication Critical patent/GB2212423A/en
Application granted granted Critical
Publication of GB2212423B publication Critical patent/GB2212423B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B24B9/167—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 with means for turning and positioning the gem stones

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Adornments (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
GB8826912A 1987-11-20 1988-11-17 Working a facet of a gemstone Expired - Lifetime GB2212423B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878727303A GB8727303D0 (en) 1987-11-20 1987-11-20 Polishing machine

Publications (3)

Publication Number Publication Date
GB8826912D0 GB8826912D0 (en) 1988-12-21
GB2212423A GB2212423A (en) 1989-07-26
GB2212423B true GB2212423B (en) 1992-07-22

Family

ID=10627345

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878727303A Pending GB8727303D0 (en) 1987-11-20 1987-11-20 Polishing machine
GB8826912A Expired - Lifetime GB2212423B (en) 1987-11-20 1988-11-17 Working a facet of a gemstone

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB878727303A Pending GB8727303D0 (en) 1987-11-20 1987-11-20 Polishing machine

Country Status (7)

Country Link
AU (2) AU613112B2 (en)
BE (1) BE1002954A5 (en)
GB (2) GB8727303D0 (en)
IL (1) IL88454A (en)
IN (1) IN173151B (en)
NL (1) NL8802866A (en)
ZA (1) ZA888696B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104846721A (en) * 2015-05-22 2015-08-19 平湖市雀曲贸易有限公司 Adjustable-processing-height landscape garden road trimming device and use method thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU94042375A (en) * 1994-11-29 1996-12-10 Московский завод "Кристалл" Method and apparatus for orienting diamond in the process of working
WO2007147214A1 (en) * 2006-06-22 2007-12-27 The University Of Sydney Method and apparatus for polishing diamond and diamond composites
CN101780652B (en) * 2009-11-06 2011-11-16 佛山裕顺福首饰钻石有限公司 Multi-angle diamond edge grinding machine
CN104831609A (en) * 2015-05-22 2015-08-12 桐乡市濮院舍尔得针织制衣厂 Portable park road trimming device and using method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB572988A (en) * 1942-06-12 1945-11-01 Frederick Charles Jearum Improvements in and relating to machines for generating conical or pyramidal points,forms or facets for diamonds or other stones and the like
GB2037196A (en) * 1978-12-19 1980-07-09 Bonas Machine Co Gem stone polishing machines

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1132882A (en) * 1915-02-17 1915-03-23 Samuel M Schenkein Gem-polishing machine.
FR594729A (en) * 1924-06-04 1925-09-17 Semi-automatic semi-automatic machine for roughing, cutting and polishing precious stones
NL7106770A (en) * 1971-05-17 1972-11-21
US3886695A (en) * 1973-05-17 1975-06-03 Colorant Schmuckstein Gmbh Method for grinding a gem stone
US4287867A (en) * 1980-02-25 1981-09-08 Victor United, Inc. Compound bow
BE901235A (en) * 1984-12-07 1985-03-29 Hakodiam P V B A AUTOMATIC DEVICE FOR SEARCHING FOR THE IDEAL POSITION OF A DIAMOND OR GEM DURING THEIR SIZE.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB572988A (en) * 1942-06-12 1945-11-01 Frederick Charles Jearum Improvements in and relating to machines for generating conical or pyramidal points,forms or facets for diamonds or other stones and the like
GB2037196A (en) * 1978-12-19 1980-07-09 Bonas Machine Co Gem stone polishing machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104846721A (en) * 2015-05-22 2015-08-19 平湖市雀曲贸易有限公司 Adjustable-processing-height landscape garden road trimming device and use method thereof

Also Published As

Publication number Publication date
IN173151B (en) 1994-02-19
NL8802866A (en) 1989-06-16
GB8727303D0 (en) 1987-12-23
IL88454A (en) 1992-03-29
BE1002954A5 (en) 1991-10-01
GB8826912D0 (en) 1988-12-21
AU2574688A (en) 1989-05-25
AU639974B2 (en) 1993-08-12
AU613112B2 (en) 1991-07-25
ZA888696B (en) 1989-08-30
AU6989191A (en) 1991-03-28
GB2212423A (en) 1989-07-26

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee