GB2074480B - Working gemstones - Google Patents

Working gemstones

Info

Publication number
GB2074480B
GB2074480B GB8013407A GB8013407A GB2074480B GB 2074480 B GB2074480 B GB 2074480B GB 8013407 A GB8013407 A GB 8013407A GB 8013407 A GB8013407 A GB 8013407A GB 2074480 B GB2074480 B GB 2074480B
Authority
GB
United Kingdom
Prior art keywords
gemstones
working
working gemstones
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
Application number
GB8013407A
Other versions
GB2074480A (en
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.)
Gersan Ets
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
Priority to GB8013407A priority Critical patent/GB2074480B/en
Priority to IL62692A priority patent/IL62692A/en
Priority to NL8101965A priority patent/NL8101965A/en
Priority to ZA00812625A priority patent/ZA812625B/en
Priority to BE0/204590A priority patent/BE888543A/en
Publication of GB2074480A publication Critical patent/GB2074480A/en
Application granted granted Critical
Publication of GB2074480B publication Critical patent/GB2074480B/en
Expired legal-status Critical Current

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)
GB8013407A 1980-04-23 1980-04-23 Working gemstones Expired GB2074480B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB8013407A GB2074480B (en) 1980-04-23 1980-04-23 Working gemstones
IL62692A IL62692A (en) 1980-04-23 1981-04-22 Method and apparatus for working gemstones
NL8101965A NL8101965A (en) 1980-04-23 1981-04-22 METHOD AND APPARATUS FOR WORKING A GEM
ZA00812625A ZA812625B (en) 1980-04-23 1981-04-22 Working gemstones
BE0/204590A BE888543A (en) 1980-04-23 1981-04-23 METHODS AND MACHINES FOR THE TREATMENT OF PRECIOUS STONES,

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
GB2074480A GB2074480A (en) 1981-11-04
GB2074480B true GB2074480B (en) 1983-04-07

Family

ID=10512970

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8013407A Expired GB2074480B (en) 1980-04-23 1980-04-23 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
GB2074480A (en) 1981-11-04
IL62692A0 (en) 1981-06-29
IL62692A (en) 1982-12-31
NL8101965A (en) 1981-11-16
ZA812625B (en) 1982-05-26
BE888543A (en) 1981-08-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960423