GB213839A - Balance bearing for time keepers - Google Patents

Balance bearing for time keepers

Info

Publication number
GB213839A
GB213839A GB23363/23A GB2336323A GB213839A GB 213839 A GB213839 A GB 213839A GB 23363/23 A GB23363/23 A GB 23363/23A GB 2336323 A GB2336323 A GB 2336323A GB 213839 A GB213839 A GB 213839A
Authority
GB
United Kingdom
Prior art keywords
balls
radius
balance bearing
time keepers
staff
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
GB23363/23A
Inventor
John J Pawlick
James G Gibson
Douglas Wilson
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 filed Critical
Priority to GB23363/23A priority Critical patent/GB213839A/en
Priority to DEP46876D priority patent/DE434553C/en
Priority to CH106822D priority patent/CH106822A/en
Priority to FR571238D priority patent/FR571238A/en
Publication of GB213839A publication Critical patent/GB213839A/en
Expired legal-status Critical Current

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
    • G04B31/004—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor characterised by the material used
    • G04B31/012—Metallic bearings
    • G04B31/0123—Metallic bearings with metallic ball bearings and metallic roller bearings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Rolling Contact Bearings (AREA)
  • Adornments (AREA)

Abstract

213,839. Pawlick, J. J., Gibson, J. G., and Wilson, D. Sept. 18, 1923. Jewelling and pivoting.-The balance staff of a timekeeper is supported at each end in a ball bearing comprising a two-part holder 7, 9 held in place by screws 10, the races 5, 8 occupying, in cross-section, arcs of 90‹ and having a radius of curvature only slightly greater than the radius of the balls. The weight of the staff is, in all positions of the clock or watch, transmitted through vertical diameters of the balls. The part 7 may be made of hardened steel or of precious stone.
GB23363/23A 1923-09-18 1923-09-18 Balance bearing for time keepers Expired GB213839A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB23363/23A GB213839A (en) 1923-09-18 1923-09-18 Balance bearing for time keepers
DEP46876D DE434553C (en) 1923-09-18 1923-09-22 Balance shaft bearing for timepiece
CH106822D CH106822A (en) 1923-09-18 1923-09-25 Balance bearings in watches.
FR571238D FR571238A (en) 1923-09-18 1923-09-28 Balance support for chronometers

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB23363/23A GB213839A (en) 1923-09-18 1923-09-18 Balance bearing for time keepers
DEP0046876 1923-09-22
CH106822T 1923-09-25
FR571238T 1923-09-28

Publications (1)

Publication Number Publication Date
GB213839A true GB213839A (en) 1924-04-10

Family

ID=41138882

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23363/23A Expired GB213839A (en) 1923-09-18 1923-09-18 Balance bearing for time keepers

Country Status (3)

Country Link
CH (1) CH106822A (en)
FR (1) FR571238A (en)
GB (1) GB213839A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011080879A (en) * 2009-10-07 2011-04-21 Seiko Instruments Inc Bearing unit for watch, movement, and portable watch
JP2011180006A (en) * 2010-03-02 2011-09-15 Seiko Instruments Inc Bearing unit for watch, movement, and portable watch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011080879A (en) * 2009-10-07 2011-04-21 Seiko Instruments Inc Bearing unit for watch, movement, and portable watch
JP2011180006A (en) * 2010-03-02 2011-09-15 Seiko Instruments Inc Bearing unit for watch, movement, and portable watch

Also Published As

Publication number Publication date
CH106822A (en) 1924-09-16
FR571238A (en) 1924-05-14

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