BE902111A - PROCESS AND APPARATUS FOR TREATING PRECIOUS STONES. - Google Patents

PROCESS AND APPARATUS FOR TREATING PRECIOUS STONES.

Info

Publication number
BE902111A
BE902111A BE0/214784A BE214784A BE902111A BE 902111 A BE902111 A BE 902111A BE 0/214784 A BE0/214784 A BE 0/214784A BE 214784 A BE214784 A BE 214784A BE 902111 A BE902111 A BE 902111A
Authority
BE
Belgium
Prior art keywords
stone
precious stones
feelers
gauge
treating precious
Prior art date
Application number
BE0/214784A
Other languages
French (fr)
Inventor
A D G Stewart
Original Assignee
Gersan Etablishment
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 Gersan Etablishment filed Critical Gersan Etablishment
Publication of BE902111A publication Critical patent/BE902111A/en

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
    • B24B9/161—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)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

Pour déterminer quand une facette est terminée, lorsqu'on polit une pierre précieuse (5), on fixe un calibre (7) au support (3) de la pierre, ce calibre portant des palpeurs espacés (12) qui sont adjacents de la pierre (5) et situés de part et d'autre de celle-ci, un mécanisme de levage de la pierre étant actionné automatiquement pour écarter cette pierre du disque de polissage (1) lorsque les palpeurs (12) décèlent qu'ils sont suffisamment proches de ce disque (1).To determine when a facet is finished, when polishing a precious stone (5), a gauge (7) is fixed to the support (3) of the stone, this gauge carrying spaced feelers (12) which are adjacent to the stone (5) and located on either side thereof, a stone lifting mechanism being actuated automatically to separate this stone from the polishing disc (1) when the feelers (12) detect that they are close enough of this disc (1).

BE0/214784A 1984-04-03 1985-04-03 PROCESS AND APPARATUS FOR TREATING PRECIOUS STONES. BE902111A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB848408544A GB8408544D0 (en) 1984-04-03 1984-04-03 Working facets on gemstone

Publications (1)

Publication Number Publication Date
BE902111A true BE902111A (en) 1985-07-31

Family

ID=10559089

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/214784A BE902111A (en) 1984-04-03 1985-04-03 PROCESS AND APPARATUS FOR TREATING PRECIOUS STONES.

Country Status (4)

Country Link
BE (1) BE902111A (en)
GB (2) GB8408544D0 (en)
IL (1) IL74807A (en)
IN (1) IN164400B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL147100A (en) * 2001-12-13 2005-12-18 Dialit Ltd System and method for automatic gemstone polishing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1207315A (en) * 1966-12-20 1970-09-30 Spectrum Diamonds Pty Ltd Faceting gem stones
GB1600863A (en) * 1977-03-09 1981-10-21 Gersoran Sa Gem stone cutting machine

Also Published As

Publication number Publication date
GB2156716B (en) 1987-03-18
GB2156716A (en) 1985-10-16
IN164400B (en) 1989-03-11
GB8408544D0 (en) 1984-05-16
IL74807A0 (en) 1985-07-31
GB8508563D0 (en) 1985-05-09
IL74807A (en) 1988-04-29

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Legal Events

Date Code Title Description
RE Patent lapsed

Effective date: 20030430