IN160559B - - Google Patents

Info

Publication number
IN160559B
IN160559B IN255/DEL/84A IN255DE1984A IN160559B IN 160559 B IN160559 B IN 160559B IN 255DE1984 A IN255DE1984 A IN 255DE1984A IN 160559 B IN160559 B IN 160559B
Authority
IN
India
Application number
IN255/DEL/84A
Inventor
Giovanni Colliva
Original Assignee
Giovanni Colliva
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 Giovanni Colliva filed Critical Giovanni Colliva
Publication of IN160559B publication Critical patent/IN160559B/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/02Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor by means of tools with abrading surfaces corresponding in shape with the lenses to be made
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02Machines 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
    • B24B9/06Machines 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
    • B24B9/16Machines 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
    • B24B9/168Machines 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 grinding peripheral, e.g. conical or cylindrical, surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Adornments (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
IN255/DEL/84A 1983-08-03 1984-03-22 IN160559B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT22408/83A IT1168707B (en) 1983-08-03 1983-08-03 EQUIPMENT FOR CUTTING GEMS WITH SPHERICAL FACETS AND GEMS SO OBTAINED

Publications (1)

Publication Number Publication Date
IN160559B true IN160559B (en) 1987-07-18

Family

ID=11195907

Family Applications (1)

Application Number Title Priority Date Filing Date
IN255/DEL/84A IN160559B (en) 1983-08-03 1984-03-22

Country Status (4)

Country Link
GB (1) GB2144622B (en)
IE (1) IE55064B1 (en)
IN (1) IN160559B (en)
IT (1) IT1168707B (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB581619A (en) * 1943-09-21 1946-10-18 Linde Air Prod Co Improvements in synthetic gem bodies and their manufacture
GB697804A (en) * 1949-12-21 1953-09-30 Union Carbide & Carbon Corp Improvements in and relating to the manufacture of synthetic corundum containing titanium
FR1564878A (en) * 1968-03-13 1969-04-25
IL39936A (en) * 1971-07-30 1975-04-25 De Beers Ind Diamond A diamond particle particularly for use in heat sinks
BE793007A (en) * 1971-12-20 1973-06-19 Union Carbide Corp PROCESS FOR MODIFYING THE APPEARANCE OF CORUNDUM CRYSTALS AND CRYSTALS THUS OBTAINED
US3742731A (en) * 1972-06-08 1973-07-03 Queensbury Opal Co Ltd Gem having light piping fibres with cores of high refractve index and clad layers of lower refractive index
IL58834A (en) * 1978-12-06 1982-12-31 Clarke Roger Maxwell Gemstone and method and device for cutting it

Also Published As

Publication number Publication date
IT8322408A0 (en) 1983-08-03
IT8322408A1 (en) 1985-02-03
IT1168707B (en) 1987-05-20
IE840686L (en) 1985-02-03
GB2144622A (en) 1985-03-13
GB2144622B (en) 1987-01-14
GB8407316D0 (en) 1984-04-26
IE55064B1 (en) 1990-05-09

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