CH289106A - Compensating hairspring. - Google Patents

Compensating hairspring.

Info

Publication number: CH289106A
Authority: CH; Switzerland
Prior art keywords: compensating hairspring; hairspring; compensating
Prior art date: 1949-06-20

Application number

Other languages

French (fr)

Inventor

Dubois Ernest

Original Assignee

Dubois Ernest

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.)

1949-06-20

Filing date

1949-06-20

Publication date

1953-02-28

1949-06-20 Application filed by Dubois Ernest filed Critical Dubois Ernest

1953-02-28 Publication of CH289106A publication Critical patent/CH289106A/en

Classifications

- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
- 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
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/20—Compensation of mechanisms for stabilising frequency
- G04B17/22—Compensation of mechanisms for stabilising frequency for the effect of variations of temperature
- G04B17/227—Compensation of mechanisms for stabilising frequency for the effect of variations of temperature composition and manufacture of the material used

Landscapes

Engineering & Computer Science (AREA)
Metallurgy (AREA)
Chemical & Material Sciences (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Organic Chemistry (AREA)
Manufacturing & Machinery (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Heat Treatment Of Steel (AREA)
Springs (AREA)

CH289106D 1949-06-20 1949-06-20 Compensating hairspring. CH289106A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH289106T		1949-06-20

Publications (1)

Publication Number	Publication Date
CH289106A true CH289106A (en)	1953-02-28

Family

ID=4486505

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH289106D CH289106A (en)	1949-06-20	1949-06-20	Compensating hairspring.

Country Status (4)

Country	Link
US (1)	US2568326A (en)
CH (1)	CH289106A (en)
DE (1)	DE861258C (en)
FR (1)	FR1021368A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2466396A1 (en) *	2010-12-15	2012-06-20	The Swatch Group Research and Development Ltd.	Magnetic shield for a spiral of a timepiece

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2819957A (en) *	1954-12-24	1958-01-14	Stahlwerk Kabel Fa	Steel alloys for making magnetic recordings
FR2842313B1 (en) *	2002-07-12	2004-10-22	Gideon Levingston	MECHANICAL OSCILLATOR (BALANCING SYSTEM AND SPIRAL SPRING) IN MATERIALS FOR REACHING A HIGHER LEVEL OF PRECISION, APPLIED TO A WATCHMAKING MOVEMENT OR OTHER PRECISION INSTRUMENT
GB0324439D0 (en) *	2003-10-20	2003-11-19	Levingston Gideon R	Minimal thermal variation and temperature compensating non-magnetic balance wheels and methods of production of these and their associated balance springs
WO2006123095A2 (en) *	2005-05-14	2006-11-23	Gideon Levingston	Balance spring, regulated balance wheel assembly and methods of manufacture thereof
US8100579B2 (en) *	2006-09-08	2012-01-24	Gideon Levingston	Thermally compensating balance wheel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH15527A (en) *	1898-04-21	1898-06-15	Paul Perret	New exhaust
US2507698A (en) *	1947-02-12	1950-05-16	Dubois Ernest	Hairspring

1949
- 1949-06-20 CH CH289106D patent/CH289106A/en unknown
1950
- 1950-05-27 FR FR1021368D patent/FR1021368A/en not_active Expired
- 1950-06-01 US US165577A patent/US2568326A/en not_active Expired - Lifetime
- 1950-06-03 DE DED3121A patent/DE861258C/en not_active Expired

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2466396A1 (en) *	2010-12-15	2012-06-20	The Swatch Group Research and Development Ltd.	Magnetic shield for a spiral of a timepiece
WO2012080021A1 (en) *	2010-12-15	2012-06-21	The Swatch Group Research And Development Ltd	Magnetic screening for timepiece hairspring
US9494921B2 (en)	2010-12-15	2016-11-15	The Swatch Group Research And Development Ltd	Magnetic shielding for timepiece balance spring

Also Published As

Publication number	Publication date
DE861258C (en)	1952-12-29
US2568326A (en)	1951-09-18
FR1021368A (en)	1953-02-18

Publication	Publication Date	Title
CH289106A (en)	1953-02-28	Compensating hairspring.
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DK72442C (en)	1951-04-23	Pattedilatator.
DK72895C (en)	1951-08-06	Knaldpistol.
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