ZA812625B - Working gemstones - Google Patents

Working gemstones

Info

Publication number
ZA812625B
ZA812625B ZA00812625A ZA812625A ZA812625B ZA 812625 B ZA812625 B ZA 812625B ZA 00812625 A ZA00812625 A ZA 00812625A ZA 812625 A ZA812625 A ZA 812625A ZA 812625 B ZA812625 B ZA 812625B
Authority
ZA
South Africa
Prior art keywords
gemstones
working
working gemstones
Prior art date
Application number
ZA00812625A
Other languages
English (en)
Inventor
J Dodson
F Binns
J Lawrence
A Steward
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 ZA812625B publication Critical patent/ZA812625B/xx

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)
ZA00812625A 1980-04-23 1981-04-22 Working gemstones ZA812625B (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ZA812625B true ZA812625B (en) 1982-05-26

Family

ID=10512970

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00812625A ZA812625B (en) 1980-04-23 1981-04-22 Working gemstones

Country Status (5)

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

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 (zh) * 1996-02-14 2001-03-21 浙江大学 一步法加工硅111晶锭参考面的方法及设备

Also Published As

Publication number Publication date
IL62692A0 (en) 1981-06-29
IL62692A (en) 1982-12-31
NL8101965A (nl) 1981-11-16
GB2074480A (en) 1981-11-04
GB2074480B (en) 1983-04-07
BE888543A (fr) 1981-08-17

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