GB1099897A - Seconds hand drive train arrangement - Google Patents

Seconds hand drive train arrangement

Info

Publication number
GB1099897A
GB1099897A GB40058/66A GB4005866A GB1099897A GB 1099897 A GB1099897 A GB 1099897A GB 40058/66 A GB40058/66 A GB 40058/66A GB 4005866 A GB4005866 A GB 4005866A GB 1099897 A GB1099897 A GB 1099897A
Authority
GB
United Kingdom
Prior art keywords
seconds
helical gear
index wheel
wheel
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
GB40058/66A
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.)
United States Time Corp
Original Assignee
United States Time Corp
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 United States Time Corp filed Critical United States Time Corp
Publication of GB1099897A publication Critical patent/GB1099897A/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
    • G04B19/00—Indicating the time by visual means
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • 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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/02—Devices allowing the motion of a rotatable part in only one direction
    • G04B11/04—Pawl constructions therefor, e.g. pawl secured to an oscillating member actuating a ratchet
    • 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
    • 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
    • G04B15/00—Escapements

Abstract

1,099,897. Escapements. UNITED STATES TIME CORPORATION. Sept. 7, 1966 [Sept. 29, 1965], No.40058/66. Heading G3T. An escapement mechanism for a watch comprises an index wheel 60 and a helical gear 26 mounted on a staff 32, means being provided to axially move the helical gear once every second from an initial setting position to a rapid indexing motion. A seconds hand 22 and a seconds wheel 14 are mounted on a shaft 20 pivoted between bridges 16, 18. A curved arm 80 attached to a frame plate 10 is biased into engagement with one of four spokes 78 which define slots 84 in the index wheel 60. The index wheel is rotated through one revolution in four seconds by a lever 48 which is oscillated by a pin 68 attached to a roller 66 fixed on a balance staff 70. Rotation of the index wheel 60 causes the arm 80 to enter one of the slots 84 so that a spring 42 cams the staff 32 and the helical gear 26 upwards. The teeth 28 of the helical gear thus cause a sudden intermittent rotation of the seconds wheel 14 and the arm 80 engages the edge 87 of the following spoke 78 so that further rotation of the index wheel cams the gear 26 back to its initial position.
GB40058/66A 1965-09-29 1966-09-07 Seconds hand drive train arrangement Expired GB1099897A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEU0012070 1965-09-29

Publications (1)

Publication Number Publication Date
GB1099897A true GB1099897A (en) 1968-01-17

Family

ID=7567844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40058/66A Expired GB1099897A (en) 1965-09-29 1966-09-07 Seconds hand drive train arrangement

Country Status (4)

Country Link
US (1) US3408810A (en)
CH (2) CH479107A (en)
DE (1) DE1523854B2 (en)
GB (1) GB1099897A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH34870A4 (en) * 1970-01-12 1972-03-30
GB1341597A (en) * 1970-06-09 1973-12-25 Suwa Seikosha Kk Timepiece mechanism
US3934404A (en) * 1973-11-17 1976-01-27 Kabushiki Kaisha Daini Seikosha Second hand regulating mechanism
FR2283474A1 (en) * 1974-06-12 1976-03-26 Jaz Sa IMPROVEMENT IN BALANCER-MOTOR WATCHMAKING MOVEMENTS
US4177630A (en) * 1977-10-25 1979-12-11 Bunker Ramo Corporation Sweep seconds to jump seconds conversion for clocks
FR2474710A2 (en) * 1980-01-29 1981-07-31 Suisse Horlogerie LOW THICK BRACELET WATCH
DE60225779T2 (en) * 2002-02-01 2009-06-18 Tag Heuer S.A. Device with movement and chronograph module
FR2867285B1 (en) * 2004-03-03 2009-07-31 Benoit Espiau WATCH

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR664225A (en) * 1927-09-30 1929-08-30 Barbezat Bole H Timepiece with central seconds hand
US2580597A (en) * 1948-06-09 1952-01-01 Ebauches Sa Timepiece movement with intermittent seconds indicator
CH312742A (en) * 1953-10-08 1956-02-29 Ebauches Sa Timepiece with instantaneous seconds mechanism
US2921476A (en) * 1957-06-29 1960-01-19 Derby S A Timepiece movement with a jumping second-beating hand
US3058293A (en) * 1958-03-28 1962-10-16 Durowe A G Second hand drive for timepieces
US3340687A (en) * 1965-08-13 1967-09-12 Novikov Mikhail Fedorovich Device for intermittent motion of second hand

Also Published As

Publication number Publication date
CH479107A (en) 1969-09-30
US3408810A (en) 1968-11-05
DE1523854A1 (en) 1969-06-12
CH1232566A4 (en) 1969-06-13
DE1523854B2 (en) 1970-01-15

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