EP0201394A1 - Schliffverfahren eines Diamanten für die Herstellung einer unsichtbaren Fassung, Polierverfahren und Maschine zur Durchführung dieses Verfahrens - Google Patents

Schliffverfahren eines Diamanten für die Herstellung einer unsichtbaren Fassung, Polierverfahren und Maschine zur Durchführung dieses Verfahrens Download PDF

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Publication number
EP0201394A1
EP0201394A1 EP86400847A EP86400847A EP0201394A1 EP 0201394 A1 EP0201394 A1 EP 0201394A1 EP 86400847 A EP86400847 A EP 86400847A EP 86400847 A EP86400847 A EP 86400847A EP 0201394 A1 EP0201394 A1 EP 0201394A1
Authority
EP
European Patent Office
Prior art keywords
diamond
points
polished
notches
disc
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.)
Withdrawn
Application number
EP86400847A
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English (en)
French (fr)
Inventor
Henry-Jean Azema
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.)
AZEMA, HENRI-JEAN
Original Assignee
Henry-Jean Azema
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 Henry-Jean Azema filed Critical Henry-Jean Azema
Publication of EP0201394A1 publication Critical patent/EP0201394A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C17/00—Gems or the like
    • A44C17/005—Gems provided with grooves or notches, e.g. for setting
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C17/00—Gems or the like
    • A44C17/04—Setting gems in jewellery; Setting-tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor

Definitions

  • the object of the present invention is to remedy these drawbacks and its purpose is to cut a diamond to allow the edges of its cylinder head to be fitted under the laminate with notches or notches in which the frame can engage, characterized in that the notches have the shape of a dihedral whose two surfaces are located on either side of the plane of the natural table according to which the polished table is oriented, the two surfaces of each dihedron being themselves polished.
  • the inventor has indeed found that when the two surfaces of the dihedral were polished, the crimping, both the metal part engaged in the notch and the notch itself, was completely invisible and did not modify the fires of the stone.
  • the cuts are made using a sawing machine or laser then the dihedral surfaces, one of which is substantially parallel to the polished table and the other inclined at an angle of at least 30 ° to the first, are polished using a sawing machine whose carriage carrying the diamond has been made mobile in a direction parallel to the plane of the sawing disc, the surface of the disc being coated with a mixture of shredded and gum arabic diluted with water, the speed of polishing of the surface of the disc with respect to the diamond being between 2500 and 3200 m / min ., preferably 2750 to 2900 m / min., with about ten passes of the diamond per minute in contact with the surface of the disc and a speed of passage of 2 m / min.
  • abrasive namely a mixture of embroidered and gum arabic is essential to avoid frosting the facets of the laminate and the table during the polishing of the dihedral surfaces.
  • the relative speed of the surface of the polishing disc with respect to the diamond must be greater than a minimum speed of 2500 m / min. below which there is no polishing but remain below at a maximum speed of 3200 m / min. above which there is combustion of the diamond.
  • the polishing times must be short and separated by periods of cooling, which is why the carriage carrying the diamond should preferably make about five reciprocating movements per minute with a speed of passage of the diamond. about 2 m / min.
  • the reference 1 designates the table of the cut diamond, the reference 2 the facets of the laminate and the reference 3 the cylinder head.
  • notches 7 are produced in the edges of the cylinder head. These notches are dihedrons with an edge 4 orthogonal to the edge of the cylinder head with the two surfaces of the dihedral polished, one of the surfaces 5 being substantially parallel to the table 1 and the other 6 making an angle with the surface 5 of about 30 °.
  • the plane passing through the four points 10 of the base of the pyramids and the planes parallel to it is called a table of four points.
  • the table of three points the surface 12 passing through two points 10 and a vertex 11 of a pyramid and the table of two points a surface passing through an edge 13 of the tetrahedron.
  • Natural tables can not practically be polished because of their hardness, the facets of the cut diamond and in particular table 1 must make a minimum angle of about 7 ° with the natural table according to which is cut the facet.
  • the diamond is cut full stone and the table 1 is inclined at an angle of at least 7 ° on the table of the four points, the notches for priming the notches 7 are made in the tables of two points and the facets of the dihedrons are then polished, the facets 5 being substantially parallel to the table 1, that is to say inclined by about 7 ° on the table of the four points.
  • the facets 6 are inclined by about 30 °.
  • the table 1 is also inclined by at least 7 ° on the table of the three points 10-11.
  • the starting notches of the notches 7 are sawn on the table of four points and the surfaces polished according to the same rules by making an angle of at least 7 ° with the table of four points.
  • the notches of the notches are made on the tables of two points and the polished facets 5 and 6 are respectively parallel to the table 1 and inclined by about 30 ° with respect thereto.
  • the notches of the notches are either sawed by successive passes of 4 / 1000th of a mm, or cut with laser.
  • the faces of the dihedral constituting the notch are then polished on a sawing machine the diamond holder of which is mounted on a carriage driven in an alternating movement along a parallel to the plane of the machine disc.
  • This reciprocating movement has an amplitude of approximately 20 cm and a frequency of 12 seconds, which gives a speed of 2 m / minute and a frequency of passage of the diamond in contact with the disc of 10 per minute.
  • the disc having a diameter of 15 cm is driven at a speed of 6000 revolutions / minute and its surface is coated with a mixture of equalizer and gum arabic diluted with water.
EP86400847A 1985-04-19 1986-04-18 Schliffverfahren eines Diamanten für die Herstellung einer unsichtbaren Fassung, Polierverfahren und Maschine zur Durchführung dieses Verfahrens Withdrawn EP0201394A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8506003 1985-04-19
FR8506003A FR2580541B1 (fr) 1985-04-19 1985-04-19 Taille du diamant permettant un sertissage invisible

Publications (1)

Publication Number Publication Date
EP0201394A1 true EP0201394A1 (de) 1986-11-12

Family

ID=9318455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86400847A Withdrawn EP0201394A1 (de) 1985-04-19 1986-04-18 Schliffverfahren eines Diamanten für die Herstellung einer unsichtbaren Fassung, Polierverfahren und Maschine zur Durchführung dieses Verfahrens

Country Status (3)

Country Link
US (1) US4738240A (de)
EP (1) EP0201394A1 (de)
FR (1) FR2580541B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609605A1 (fr) * 1987-01-20 1988-07-22 Philippe Renaud Monture a sertissage invisible pour pierres a culasse a aretes avec encoche en dessous de feuilletis
US5690477A (en) * 1996-07-08 1997-11-25 Nili Jewelry, Corp. Invisible setting method for jewelry
FR2803988A1 (fr) * 2000-01-21 2001-07-27 Eric Hamers Procede d'enchassement d'une pierre en joaillerie
USRE37854E1 (en) * 1996-07-08 2002-09-24 Nili Jewelry, Corp. Invisible setting method for jewelry
US7419083B1 (en) 2004-04-22 2008-09-02 Angela Cheng Method for metal ornamentation
WO2019180116A1 (fr) 2018-03-21 2019-09-26 Hamard Vitau Piece de joaillerie, procede pour tailler une pierre, en particulier un diamant, et picot de monture associe

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL92063A (en) * 1989-10-20 1993-06-10 Boaz Ramot Invisible gemstone setting
US5072601A (en) * 1990-09-18 1991-12-17 Christopher Slowinski Diamond setting
US5623916A (en) * 1995-03-10 1997-04-29 El-Gaouni; Muntaser H. Method and apparatus for cutting grooves into diamonds and precious stones
US5974830A (en) * 1997-08-08 1999-11-02 Colero; Michael A. Jewelry suspension harness
WO1999061766A1 (en) 1998-05-29 1999-12-02 Edward Charles Mendler Rigid crankshaft cradle and actuator
JP2000005993A (ja) * 1998-06-17 2000-01-11 Hisatake Shudo ダイヤモンドのカット方法及びダイヤモンドのプロポーション
US6112552A (en) * 1999-01-12 2000-09-05 Michael Anthony Jewelers, Inc. Gemstone setting and method of using
US6615611B1 (en) * 2000-09-26 2003-09-09 Michael Schachter High yield diamond
US6604382B2 (en) 2000-11-07 2003-08-12 Naotake Shuto New-cut diamond shape
US6564583B2 (en) 2001-04-24 2003-05-20 Martin Gruber Gruber Jewelry with girdle-grooved stone
US20050005639A1 (en) * 2003-06-27 2005-01-13 Simen Shagalov Precious stone setting
US20080016912A1 (en) * 2006-05-24 2008-01-24 Rafael Gutierrez Gemstone Setting Arrangement and Method for Setting a Gemstone
US8215126B2 (en) * 2007-03-01 2012-07-10 Rany Mattar Setting for gemstones, particularly diamonds
JP2009142455A (ja) * 2007-12-14 2009-07-02 Juho:Kk ダイヤモンドおよびダイヤモンド形状の宝飾品およびそのカット方法
US20110302959A1 (en) * 2010-06-11 2011-12-15 Adam Wcislo Precious stone setting
US9226554B2 (en) 2014-05-12 2016-01-05 Yoshihiko Kodama Circular cut diamond
CN108714978B (zh) * 2018-07-05 2024-01-09 青岛高测科技股份有限公司 一种晶硅切棱磨倒一体机
US11717065B2 (en) 2019-12-17 2023-08-08 Fine Jewellery Mfg Ltd. Gemstone settings and setting methods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR802367A (fr) * 1936-02-24 1936-09-03 Cleef & Arpels Van Perfectionnements aux montures de pierres précieuses
FR1548980A (de) * 1966-12-20 1968-12-06
GB2130938A (en) * 1980-11-26 1984-06-13 Gersan Ets Gemstone polishing machine
FR2570259A1 (fr) * 1984-09-18 1986-03-21 Bastoen Claude Dispositif de fixation invisible du diamant et des pierres precieuses en general

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US732119A (en) * 1902-03-27 1903-06-30 Ernest G H Schenck Method of cutting precious stones.
US835964A (en) * 1906-01-06 1906-11-13 Marcus Van Wezel Machine for sawing diamonds.
FR764966A (fr) * 1933-12-02 1934-05-31 Cleef & Arpels Van Dispositif pour monter les pierres précieuses
US2141363A (en) * 1937-02-22 1938-12-27 Rubel Brothers Ltd Jewelry setting
US3421341A (en) * 1966-10-18 1969-01-14 Anson Inc Clasp combined with detachably mounted ornament
US4564000A (en) * 1984-07-06 1986-01-14 The United States Of America As Represented By The Secretary Of The Army Precision cutting of millimeter wave ferrite materials

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR802367A (fr) * 1936-02-24 1936-09-03 Cleef & Arpels Van Perfectionnements aux montures de pierres précieuses
FR1548980A (de) * 1966-12-20 1968-12-06
GB2130938A (en) * 1980-11-26 1984-06-13 Gersan Ets Gemstone polishing machine
FR2570259A1 (fr) * 1984-09-18 1986-03-21 Bastoen Claude Dispositif de fixation invisible du diamant et des pierres precieuses en general

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609605A1 (fr) * 1987-01-20 1988-07-22 Philippe Renaud Monture a sertissage invisible pour pierres a culasse a aretes avec encoche en dessous de feuilletis
EP0276183A1 (de) * 1987-01-20 1988-07-27 Azema, Henry-Jean Fassung zum unsichtbaren Fassen von Steinen mit Verschlussstück und einer Einkerbung unterhalb der Rondiste
US5690477A (en) * 1996-07-08 1997-11-25 Nili Jewelry, Corp. Invisible setting method for jewelry
USRE37854E1 (en) * 1996-07-08 2002-09-24 Nili Jewelry, Corp. Invisible setting method for jewelry
FR2803988A1 (fr) * 2000-01-21 2001-07-27 Eric Hamers Procede d'enchassement d'une pierre en joaillerie
US7419083B1 (en) 2004-04-22 2008-09-02 Angela Cheng Method for metal ornamentation
WO2019180116A1 (fr) 2018-03-21 2019-09-26 Hamard Vitau Piece de joaillerie, procede pour tailler une pierre, en particulier un diamant, et picot de monture associe

Also Published As

Publication number Publication date
FR2580541A1 (fr) 1986-10-24
FR2580541B1 (fr) 1989-09-01
US4738240A (en) 1988-04-19

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