IL62692A - Method and apparatus for working gemstones - Google Patents

Method and apparatus for working gemstones

Info

Publication number
IL62692A
IL62692A IL62692A IL6269281A IL62692A IL 62692 A IL62692 A IL 62692A IL 62692 A IL62692 A IL 62692A IL 6269281 A IL6269281 A IL 6269281A IL 62692 A IL62692 A IL 62692A
Authority
IL
Israel
Prior art keywords
gemstones
working
working gemstones
Prior art date
Application number
IL62692A
Other versions
IL62692A0 (en
Inventor
John Sidney Dodson
Frank Binns
Andrew David Garry Stewart
John Charles Lawrence
Original Assignee
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 Gersan Ets filed Critical Gersan Ets
Publication of IL62692A0 publication Critical patent/IL62692A0/en
Publication of IL62692A publication Critical patent/IL62692A/en

Links

Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/024—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of diode-array scanning

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
IL62692A 1980-04-23 1981-04-22 Method and apparatus for working gemstones IL62692A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8013407A GB2074480B (en) 1980-04-23 1980-04-23 Working gemstones

Publications (2)

Publication Number Publication Date
IL62692A0 IL62692A0 (en) 1981-06-29
IL62692A true IL62692A (en) 1982-12-31

Family

ID=10512970

Family Applications (1)

Application Number Title Priority Date Filing Date
IL62692A IL62692A (en) 1980-04-23 1981-04-22 Method and apparatus for working gemstones

Country Status (5)

Country Link
BE (1) BE888543A (en)
GB (1) GB2074480B (en)
IL (1) IL62692A (en)
NL (1) NL8101965A (en)
ZA (1) ZA812625B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4759130A (en) * 1985-11-12 1988-07-26 U.S. Philips Corporation Goniometer head arrangement
IL86762A (en) * 1988-06-16 1991-04-15 Hargem Ltd Centering apparatus for a gemstone
GB9109496D0 (en) * 1990-05-04 1991-06-26 Brilcut Patent Working gemstones
CN1063378C (en) * 1996-02-14 2001-03-21 浙江大学 Method and apparatus for processing reference plane of Si 111 crystal ingot with one-step process

Also Published As

Publication number Publication date
IL62692A0 (en) 1981-06-29
NL8101965A (en) 1981-11-16
GB2074480A (en) 1981-11-04
ZA812625B (en) 1982-05-26
GB2074480B (en) 1983-04-07
BE888543A (en) 1981-08-17

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Legal Events

Date Code Title Description
RH Patent void