GB705105A - Improvements in and relating to self-winding devices for watches - Google Patents

Improvements in and relating to self-winding devices for watches

Info

Publication number
GB705105A
GB705105A GB25558/51A GB2555851A GB705105A GB 705105 A GB705105 A GB 705105A GB 25558/51 A GB25558/51 A GB 25558/51A GB 2555851 A GB2555851 A GB 2555851A GB 705105 A GB705105 A GB 705105A
Authority
GB
United Kingdom
Prior art keywords
pawl
ratchet
holder
weight
spring
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
GB25558/51A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB705105A publication Critical patent/GB705105A/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
    • G04B5/00—Automatic winding up
    • G04B5/24—Protecting means preventing overwinding
    • 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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/04—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is limited
    • 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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/04—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is limited
    • G04B5/08—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is limited acting in both directions

Abstract

705,105. Watches. CERVINKA, B., and CERVINKA, V. Nov. 1, 1951 [May 18, 1951], No. 25558/51. Class 139 A self-winding device for a watch comprises an oscillatory weight adapted to transmit its energy to the winding mechanism in both directions of its oscillatory movement, by imparting a driving thrust, which is in the same direction of rotation irrespective of the direction of oscillation of the weight, to the barrel ratchet of the movement through the intermediary of a group of movable parts rotatably mounted on a pin fixed to a bridge of said movement, each such driving thrust involving the giving up of kinetic energy gathered by the weight during a preceding period of free movement, said group of movable parts comprising a pinion meshing with the barrel ratchet and being rigidly locked with a ratchet wheel driven by a winding pawl fixed to a pawl-holder, and said weight being adapted to strike said pawl-holder so as to throw it constantly in the same direction, the pawl-holder coming back into its starting position after each stroke under the action of a restoring spring. As the weight 2 swings counter-clockwise it strikes the lug 6 of a pawl-holder 5 which is thereby rocked counter-clockwise about its pivot 12 against the pressure of a spring 10 and a pawl 8 carried by the holder 5 steps-on the ratchet wheel 4. A pinion 3 integral with the ratchet 4 then drives the barrel ratchet 14. As the weight 2 swings clockwise a lever 13 carried thereby strikes a shoulder 6<SP>1</SP> of the pawlholder 5 which is again rocked counterclockwise to drive the barrel ratchet 14 through the pawl 8, the ratchet 4 and the pinion 3. A spring pressed pawl 7 prevents backward rotation of the ratchet 4. The spring 10 which is anchored at one end to the holder 5 by a screw 15 and rests at the other end against a pin 9 urges the pawlholder clockwise until its lug 6 meets the pin 9. The tension of the spring 10 may be altered by moving the pin 9 to one or other of the holes 9' in the bridge 1.
GB25558/51A 1951-05-18 1951-11-01 Improvements in and relating to self-winding devices for watches Expired GB705105A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CH278649T 1951-05-18
CH705105X 1951-05-18
CH961519X 1951-05-18
CH294401T 1951-05-18
CH1055696X 1951-05-18

Publications (1)

Publication Number Publication Date
GB705105A true GB705105A (en) 1954-03-10

Family

ID=61622043

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25558/51A Expired GB705105A (en) 1951-05-18 1951-11-01 Improvements in and relating to self-winding devices for watches

Country Status (4)

Country Link
CH (2) CH294401A (en)
DE (1) DE961519C (en)
FR (1) FR1055696A (en)
GB (1) GB705105A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929197A (en) * 1956-05-19 1960-03-22 Ditisheim Et Cie Alarm wrist-watches

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH362367A (en) * 1960-05-06 1962-02-15 Ebauchesfabrik Eta Ag Winding gear train for self-winding watch with manual winding

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH163945A (en) * 1932-08-01 1933-09-15 Schild Sa A Automatic winding mechanism for watch movement.
CH259165A (en) * 1945-12-11 1949-01-15 Uhrenfabrik Eterna Ag Shock absorbers for the oscillating mass in watches with automatic winding.
CH272320A (en) * 1948-05-15 1950-12-15 Zenith Montres Self-winding watch.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929197A (en) * 1956-05-19 1960-03-22 Ditisheim Et Cie Alarm wrist-watches

Also Published As

Publication number Publication date
CH294401A (en) 1953-11-15
DE961519C (en) 1957-04-04
CH278649A (en) 1951-10-31
FR1055696A (en) 1954-02-22

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