GB667031A - Improvements in and relating to a mechanism of independent seconds for movements in timepieces - Google Patents

Improvements in and relating to a mechanism of independent seconds for movements in timepieces

Info

Publication number
GB667031A
GB667031A GB14857/49A GB1485749A GB667031A GB 667031 A GB667031 A GB 667031A GB 14857/49 A GB14857/49 A GB 14857/49A GB 1485749 A GB1485749 A GB 1485749A GB 667031 A GB667031 A GB 667031A
Authority
GB
United Kingdom
Prior art keywords
wheel
driving
driven
seconds
driving wheel
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
GB14857/49A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ebauches SA
Original Assignee
Ebauches SA
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 Ebauches SA filed Critical Ebauches SA
Publication of GB667031A publication Critical patent/GB667031A/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
    • G04B13/00—Gearwork
    • G04B13/002—Gearwork where rotation in one direction is changed into a stepping movement

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

667,031. Clocks and watches. EBAUCHES SOC. ANON. June 2, 1949 [June 9, 1948], No. 14857/49. Class 139. In a timepiece movement the independent seconds' mechanism (Figs. 2 and 3), comprises, as part of the gear train of the seconds' hand, a first driving wheel 4, a driven wheel 5 coaxial with the driving wheel and having the same number of teeth as, but a slightly smaller diameter than the driving wheel, said driven wheel 5 being mounted idle over the shaft 6 of said driving wheel 4, a spring 7 connecting the driving and the driven wheels, a stopping and braking device (pawl 9) co-operating with the teeth of the driving and driven wheels to allow by its displacement upon the passage of each tooth of the driving wheel 4 a partial rotation of the driven wheel 5 as a result of the action of the spring 7 on the driven wheel 5. The wheel 5 meshes with a pinion 3 which drives the seconds' wheel 2 in step-by-step manner. One end of the spiral spring 7 is connected to the shaft 6 of the driving wheel 4 and the other end to a pin 8 on the driven wheel 5. A pin 12 on the wheel 4 arrests the wheel 5 after each movement thereof by abutting against the adjacent spoke of the wheel 5. Some of the spokes are notched at 13 to vary the initial relative setting of the wheels 4 and 5. The timepiece "beats" full seconds.
GB14857/49A 1948-06-09 1949-06-02 Improvements in and relating to a mechanism of independent seconds for movements in timepieces Expired GB667031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH667031X 1948-06-09

Publications (1)

Publication Number Publication Date
GB667031A true GB667031A (en) 1952-02-20

Family

ID=4527361

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14857/49A Expired GB667031A (en) 1948-06-09 1949-06-02 Improvements in and relating to a mechanism of independent seconds for movements in timepieces

Country Status (1)

Country Link
GB (1) GB667031A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006092685A2 (en) * 2005-03-01 2006-09-08 Richemont International Sa Clock movement with dead second indicator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006092685A2 (en) * 2005-03-01 2006-09-08 Richemont International Sa Clock movement with dead second indicator
WO2006092685A3 (en) * 2005-03-01 2007-08-30 Richemont Int Sa Clock movement with dead second indicator

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