CH561924B5 - PROCESS FOR MANUFACTURING HOLE STONES FOR WATCHMAKING AND BEARINGS FOR WATCHMAKING PARTS OBTAINED BY THIS PROCESS - Google Patents

PROCESS FOR MANUFACTURING HOLE STONES FOR WATCHMAKING AND BEARINGS FOR WATCHMAKING PARTS OBTAINED BY THIS PROCESS

Info

Publication number
CH561924B5
CH561924B5 CH392071A CH392071A CH561924B5 CH 561924 B5 CH561924 B5 CH 561924B5 CH 392071 A CH392071 A CH 392071A CH 392071 A CH392071 A CH 392071A CH 561924 B5 CH561924 B5 CH 561924B5
Authority
CH
Switzerland
Prior art keywords
watchmaking
bearings
parts obtained
manufacturing hole
hole stones
Prior art date
Application number
CH392071A
Other languages
French (fr)
Other versions
CH392071A4 (en
Original Assignee
Erfinor Ag
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 Erfinor Ag filed Critical Erfinor Ag
Priority to CH392071A priority Critical patent/CH561924B5/en
Priority to IT19842/72A priority patent/IT946946B/en
Priority to DE19722208578 priority patent/DE2208578C3/en
Priority to FR7207060A priority patent/FR2130114A1/en
Publication of CH392071A4 publication Critical patent/CH392071A4/xx
Publication of CH561924B5 publication Critical patent/CH561924B5/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/06—Manufacture or mounting processes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Adornments (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
CH392071A 1971-03-17 1971-03-17 PROCESS FOR MANUFACTURING HOLE STONES FOR WATCHMAKING AND BEARINGS FOR WATCHMAKING PARTS OBTAINED BY THIS PROCESS CH561924B5 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH392071A CH561924B5 (en) 1971-03-17 1971-03-17 PROCESS FOR MANUFACTURING HOLE STONES FOR WATCHMAKING AND BEARINGS FOR WATCHMAKING PARTS OBTAINED BY THIS PROCESS
IT19842/72A IT946946B (en) 1971-03-17 1972-01-26 PROCESS FOR MANUFACTURING PERFORATED STONES FOR WATCHES AND PIECES OBTAINED WITH THIS PROCE DIMENTO
DE19722208578 DE2208578C3 (en) 1971-03-17 1972-02-23 Process for the production of perforated watch stones
FR7207060A FR2130114A1 (en) 1971-03-17 1972-03-01 Watch bearings - prepd from compressed sintered alumina perforated and grooved simultaneously

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH392071A CH561924B5 (en) 1971-03-17 1971-03-17 PROCESS FOR MANUFACTURING HOLE STONES FOR WATCHMAKING AND BEARINGS FOR WATCHMAKING PARTS OBTAINED BY THIS PROCESS

Publications (2)

Publication Number Publication Date
CH392071A4 CH392071A4 (en) 1975-03-31
CH561924B5 true CH561924B5 (en) 1975-05-15

Family

ID=4266330

Family Applications (1)

Application Number Title Priority Date Filing Date
CH392071A CH561924B5 (en) 1971-03-17 1971-03-17 PROCESS FOR MANUFACTURING HOLE STONES FOR WATCHMAKING AND BEARINGS FOR WATCHMAKING PARTS OBTAINED BY THIS PROCESS

Country Status (3)

Country Link
CH (1) CH561924B5 (en)
FR (1) FR2130114A1 (en)
IT (1) IT946946B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3483665A1 (en) * 2017-11-13 2019-05-15 Comadur S.A. Method for manufacturing a pierced jewel
US12342910B2 (en) 2019-12-10 2025-07-01 Comadur S.A. Jewel, in particular for a horological movement, and the manufacturing method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2778801B1 (en) * 2013-03-11 2019-06-05 Comadur S.A. Bushing comprising first and second functional elements on two separate surfaces

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1241328A (en) * 1958-10-13 1960-09-16 Norton Co Manufacturing process for hard wear resistant parts
DE1523725B2 (en) * 1967-08-16 1973-02-22 Erfinor AG, Sitz bei Advokatur und Notanatsbureau Prof D H Marti, Bern METHOD OF MANUFACTURING WATCH STONES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3483665A1 (en) * 2017-11-13 2019-05-15 Comadur S.A. Method for manufacturing a pierced jewel
US11175629B2 (en) 2017-11-13 2021-11-16 Comadur S.A. Method for manufacturing a hole jewel
US12342910B2 (en) 2019-12-10 2025-07-01 Comadur S.A. Jewel, in particular for a horological movement, and the manufacturing method thereof

Also Published As

Publication number Publication date
IT946946B (en) 1973-05-21
FR2130114B1 (en) 1974-09-13
FR2130114A1 (en) 1972-11-03
DE2208578B2 (en) 1977-02-03
CH392071A4 (en) 1975-03-31
DE2208578A1 (en) 1972-09-28

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Legal Events

Date Code Title Description
PL Patent ceased
PL Patent ceased