IT1168707B - Apparecchiature per il taglio di gemme a faccette sferiche e gemme cosi' ottenute - Google Patents

Apparecchiature per il taglio di gemme a faccette sferiche e gemme cosi' ottenute

Info

Publication number
IT1168707B
IT1168707B IT22408/83A IT2240883A IT1168707B IT 1168707 B IT1168707 B IT 1168707B IT 22408/83 A IT22408/83 A IT 22408/83A IT 2240883 A IT2240883 A IT 2240883A IT 1168707 B IT1168707 B IT 1168707B
Authority
IT
Italy
Prior art keywords
gems
cutting
equipment
spherical facets
facets
Prior art date
Application number
IT22408/83A
Other languages
English (en)
Other versions
IT8322408A1 (it
IT8322408A0 (it
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 IT8322408A0 publication Critical patent/IT8322408A0/it
Priority to IT22408/83A priority Critical patent/IT1168707B/it
Priority to IL69576A priority patent/IL69576A/xx
Priority to DE19833332673 priority patent/DE3332673A1/de
Priority to NL8303189A priority patent/NL8303189A/nl
Priority to IE686/84A priority patent/IE55064B1/en
Priority to GB08407316A priority patent/GB2144622B/en
Priority to IN255/DEL/84A priority patent/IN160559B/en
Publication of IT8322408A1 publication Critical patent/IT8322408A1/it
Priority to US06/829,460 priority patent/US4686795A/en
Application granted granted Critical
Publication of IT1168707B publication Critical patent/IT1168707B/it
Priority to US07/060,015 priority patent/US5003791A/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
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/02—Machines 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
    • 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
    • B24B9/168—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 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)
IT22408/83A 1982-09-16 1983-08-03 Apparecchiature per il taglio di gemme a faccette sferiche e gemme cosi' ottenute IT1168707B (it)

Priority Applications (9)

Application Number Priority Date Filing Date Title
IT22408/83A IT1168707B (it) 1983-08-03 1983-08-03 Apparecchiature per il taglio di gemme a faccette sferiche e gemme cosi' ottenute
IL69576A IL69576A (en) 1982-09-16 1983-08-28 Apparatus for the cutting of spherical-faceted gems and gems thus obtained
DE19833332673 DE3332673A1 (de) 1982-09-16 1983-09-10 Edelsteinschleifgeraet
NL8303189A NL8303189A (nl) 1982-09-16 1983-09-15 Inrichting voor het slijpen van edelstenen, alsmede geslepen edelstenen.
IE686/84A IE55064B1 (en) 1983-08-03 1984-03-20 Gemstones and apparatus for their lapidation
GB08407316A GB2144622B (en) 1983-08-03 1984-03-21 Gemstones and apparatus for their lapidation
IN255/DEL/84A IN160559B (it) 1983-08-03 1984-03-22
US06/829,460 US4686795A (en) 1982-09-16 1986-02-12 Principles and appliances for cutting of spherical-faceted gems and gems thus obtained
US07/060,015 US5003791A (en) 1982-09-16 1987-06-09 Principles and appliances for the cutting of spherical-faceted gems and gems thus obtained

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT22408/83A IT1168707B (it) 1983-08-03 1983-08-03 Apparecchiature per il taglio di gemme a faccette sferiche e gemme cosi' ottenute

Publications (3)

Publication Number Publication Date
IT8322408A0 IT8322408A0 (it) 1983-08-03
IT8322408A1 IT8322408A1 (it) 1985-02-03
IT1168707B true IT1168707B (it) 1987-05-20

Family

ID=11195907

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22408/83A IT1168707B (it) 1982-09-16 1983-08-03 Apparecchiature per il taglio di gemme a faccette sferiche e gemme cosi' ottenute

Country Status (4)

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

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 (it) * 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 (fr) * 1971-12-20 1973-06-19 Union Carbide Corp Procede pour modifier l'aspect de cristaux de corindon et cristaux ainsi obtenus
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
IT8322408A1 (it) 1985-02-03
GB2144622B (en) 1987-01-14
IE840686L (en) 1985-02-03
IE55064B1 (en) 1990-05-09
IT8322408A0 (it) 1983-08-03
GB8407316D0 (en) 1984-04-26
GB2144622A (en) 1985-03-13
IN160559B (it) 1987-07-18

Similar Documents

Publication Publication Date Title
IT8519905A0 (it) Apparecchiatura di pinzatura e taglio e procedimenti per la sua realizzazione ed utilizzazione.
ZA843959B (en) A cutting tool and the production thereof
IT1147592B (it) Perfezionamento negli apparecchi di taglio a fascio laser e simili
FR2552679B1 (fr) Compositions vesiculaires a base de sel d'ammonium quaternaire et d'agent tensio-actif
FR2612109B3 (fr) Dispositif de changement d'outil de robot
IT8547640A1 (it) Procedimento ed apparecchio per l'applicazione di un dato su un pezzo a forma di piastra
IT8448655A0 (it) Procedimento per preparare sodio cefurossima e prodotto cosi' ottenuto
IT1232488B (it) Coltello per attivita' subacquea
FR2565867B1 (fr) Dispositif d'ebavurage
IT1176004B (it) Rocedimento per la fabbricazione di teolite a e prodotti cosi' ottenuti
IT8423561A1 (it) Composizioni fungicide stabilizzate a base di phosethyl-A1 e di un prodotto a base di rame
IT1168707B (it) Apparecchiature per il taglio di gemme a faccette sferiche e gemme cosi' ottenute
IT1177790B (it) Procedimento per la elettrodeposizione di rame e prodotto cosi' ottenuto
IT1189747B (it) Metodo per la fabbricazione di un dispositivo di tagliatura e dispositivo cosi ottenuto
IT8547759A0 (it) Procedimento per la produzione di un detergente e detergente cosi' ottenuto
IT8547866A0 (it) Metodo e apparecchio di stampaggio ed articoli cosi' ottenuti
FR2571289B3 (fr) Dispositif d'orientation pour outil
GB8408544D0 (en) Working facets on gemstone
IT1170080B (it) Triazolil-cheto-derivati aventi attivita' fungicida
IT8420882A1 (it) "dispositivo di allarme"
IT1212638B (it) Dispositivi per il taglio di gemme a faccette sferiche
IT8548708A0 (it) Perfezionamento negli apparecchi laser
IT8503371A0 (it) Coltello perfezionato per attivita'subacquee
IT8384931A0 (it) Prodotto di bellezza a base di chlorella e procedimento per la sua fabbricazione.
FR2542618B1 (fr) Collyre a base d'alpha-chymotrypsine

Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19930831