US3611703A - Watch for indicating time of two geographic zones - Google Patents

Watch for indicating time of two geographic zones Download PDF

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Publication number
US3611703A
US3611703A US12046A US3611703DA US3611703A US 3611703 A US3611703 A US 3611703A US 12046 A US12046 A US 12046A US 3611703D A US3611703D A US 3611703DA US 3611703 A US3611703 A US 3611703A
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United States
Prior art keywords
setting
wheel
stem
hand
pinion
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 - Lifetime
Application number
US12046A
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English (en)
Inventor
Jean-Louis E Borel
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Synchron SA
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Synchron SA
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Publication date
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Publication of US3611703A publication Critical patent/US3611703A/en
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    • 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
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/226—Arrangements for indicating different local apparent times; Universal time pieces three-dimensionally shaped, e.g. terrestrial globes, cylinders and the like
    • 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
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/23—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands
    • G04B19/235—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands mechanisms for correcting the additional hand or hands

Definitions

  • the watch comprises an extra hour hand driven together with the conventional hour hand by the motion work, but which can be set separately by the stem when the latter is in an intermediate axial position.
  • a winding and hand-setting mechanism of conventional type ensures winding and setting the conventional hands together with the extra hour hand in the usual manner.
  • the clutch wheel meshes only with an extra setting pinion actuating the extra hour hand and having teeth longer than the conventional setting pinion.
  • This invention relates to watches for indicating time of two geographic zones and in particular to watches having an extra hour hand driven together with the conventional hands by the motion work, but which can be set separately, setting the hands being ensured by a mechanism of conventional type including a clutch wheel controlled by a winding and hand-setting stern having a third axial position of control in addition to the two axial positions provided for controlling winding the watch and setting the conventional hands.
  • the problem of the invention is to provide a watch which comprises an extra hour hand that can easily be obtained from a standard caliper with a minimum of modifications.
  • the movement 1 of the watch represented in the drawing is a usual movement of a calendar watch comprising a date-ring 2 mounted for rotary motion around a fixing plate 3, the date indications appearing in a window 4 provided in dial 5.
  • the spring of the embodiment represented in the drawing is the setting lever spring of the standard caliper without extra hour hand.
  • the intermediate notch 16 has merely been provided without modifying the two other notches 15, 17.
  • the total stroke of stem 6 in the axial direction has thus not been modified while passing from the standard caliper to the embodiment described. Passing from the standard caliper to the watch according to the invention does consequently not involve any modification either of the stem or of the framework, or of the watchcase tube, or of the winding and hand-setting crown.
  • the two conventional hands 20 and 21 are carried as usually by a cannon pinion 22 and a conventional hour wheel 23 freely set on cannon pinion 22.
  • the cannon pinnion 22 and the hour wheel 23 mesh with a minute wheel 24 and a pinion 25, respectively, secured to the minute wheel.
  • the extra hour hand 19 is itself carried by an extra hour wheel 26 freely set on the conventional hour wheel 23.
  • Setting hand 19 is enabled by the fact that the extra hour wheel 26 meshes with a gear similar to the minute wheel 24 and comprising a pinion 27 and a wheel 28.
  • the lower toothing 29 (FIG. 2) is provided on a piece comprising a tubular projection 32. This projection serves as a pivot for a ring carrying toothing 30 and being idly mounted on projection 32.
  • a ring carrying toothing 31 is set with force fit on an end portion of projection 32 in order to retain ring 30 axially in place on its bearing surface.
  • FIG. 2 shows that the teeth of toothing 30 extend across a part 30a of conventional diameter and a part 3% having a reduced diameter.
  • FIG. 2 shows furthermore that part 30a only of toothing 30 meshes with the minute wheel 24.
  • part 30a has the same sizes as the setting pinion of the standard caliper. Passing from that standard caliper to the embodiment represented in the drawing does accordingly not modify either the gear ratio or the meshing conditions of the minute wheel and the pinion meshing therewith.
  • the part 30b of reduced diameter has been provided in order that the clutch wheel 10 does not reach the toothing 30 when stud 18 of the setting lever 7 is caught by the intermediate notch 16.
  • the toothing 30 is cut with dividing head as usual in milling pinions; a cam need only be provided in order that the milling-cutter moves toward the pinion axis when it comes opposite part 30b previously lathe-turned at the desired diameter.
  • the milling-cutter used for milling the toothing 30 is exactly the same as that used for milling the toothing of the setting pinion of the standard caliper.
  • the tooth profile in part 30a of the toothing is consequently conventional.
  • the gaps between the teeth are overall the same.
  • the teeth themselves are, however, narrower in part 3% of reduced diameter.
  • Toothing 31 meshes with wheel 28 under the same conditions as the conventional part 30a of toothing 30 meshes with the minute wheel 24.
  • toothing 29 which has the same foot diameter as part 30b of toothing 30, comprises teeth longer than those of part 30b. Only the tips of the teeth of toothing 29 are given the conventional ogi-val shape in order to prevent these teeth from breaking. Their flanks are parallel in order to avoid jamming with the clutch wheel 10 in the conventional setting position.
  • a conventional spring 33 is inserted between dial 5 and the extra hour wheel 26 thus causing the latter to be pressed onto the conventional hour wheel 23 bearing itself on the toothed collet of the cannon pinion 22.
  • spring 33 forms part of a clutch provided between the two hour wheels 23 and 26. That clutch, moreover, comprises, on the one hand, a row of twelve equidistant holes 34 provided in wheel 23 and, on the other hand, two studs 35 carried by wheel 26.
  • a first pulling action exerted on stem 6 in the position of the drawing causes the setting lever 7 to rock clockwise around its screw 36 thus moving stud 18 from notch 15 into notch 16 of the setting lever spring 14. Simultaneously, the setting lever 7 bears on the free end of yoke 8 and moves the latter against the action of spring 9 thus shifting the clutch wheel 10 into an intermediate position along the square portion 11 of the stem. In this intermediate position the ratchet toothing of the clutch wheel is remote from the corresponding toothing of the winding wheel 12. Moreover, the toothing 37 of the clutch wheel 10 meshes with toothing 29 but not yet with toothing 30. Upon rotating stem 6 in this first setting position, the clutch wheel 10 thus only drives toothing 29 and toothing 31 rigidly connected to toothing 29.
  • Toothing 30 on the contrary, remains at rest so that the rotation of stem 6 will not be transmitted to the conventional hour hand 20 and the minute hand 21 of the watch. Toothing 31 in turn drives the extra hour wheel 29 carrying hand 19, which can thus be set separately without disturbing the position of the conventional watch hands.
  • the rounded heads of studs 35 carried by the hour wheel 26 obviously leave the holes 34 of the hour wheel 23 thereby bending spring 33. Since there are twelve holes 34 regularly staggered around the watch axis, the user will hear a tick every time he will have moved hand 19 through a full hour with respect to hand 20. Clutch 33, 34, 35 has moreover the advantage of ensuring a proper setting of hand 19 relative to hand 20.
  • the first setting position of stem 6 thus serves only to modify the difference between the two times indicated by the watch. If stem 6 is then pushed into its winding position, the hands 19 and 20 will be driven in concert by the motion work while keeping the difference which has been set therebetween.
  • the teeth 37 In order to permit the described shifting motion of the clutch wheel, the teeth 37 must obviously be long enough in order to leave teeth 29 free against jamming when the 4 clutch wheel 10 is shifted into its innermost position.
  • the clutch wheel and the setting wheel are accordingly the only pieces of the standard caliper which have to be replaced in order to pass from that standard caliper to the embodiment described heretofore.
  • the clutch wheel 10 Upon rotating stem 6 in this second setting position, the clutch wheel 10 will actuate the whole gear set at the place of the standard setting pinion so that wheels 24 and 28 both will be driven.
  • the ratios of the gears 23, 26, 24, 25 and 27, 28 are obviously chosen in such a manner that the two wheels 23 and 26 rotate at the same speed under the control of stem 6.
  • a rotation of stem 6 in its second setting position does accordingly not modify tlge angle comprised between the two hour hands 19 and 2 'As a consequence of the method resorted to as disclosed heretofore in the manufacture of teeth 30, the toothing 37 of the clutch wheel 10 cannot strike on the tips of teeth 30 when stem 6 is pulled into its second setting position.
  • a watch for indicating time of two geographic zones comprising, in combination, a conventional hour hand, a minute hand, an extra hour hand, a motion works driving said three hands in concert, a first setting pinion rotating together with said conventional hour hand and said minute hand, a second setting pinion rotating together with said extra hour hand, and a setting mechanism includi'ng a stem mounted for rotary and shifting motion and having three control positions axially set apart from each other, a shiftable clutch wheel rigidly connected to said stem for rotary motion and lever means operatively connecting said stem to said clutch Wheel for shifting the latter together with the stern, said lever means holding said clutch wheel in a first extreme position in meshing relation with said first and said second setting pinion when said stem is in its outermost control position, in a second extreme position remote from said setting pinions when said stem is in its innermost control position, and in an intermediate position in meshing relation only with said second setting pinion when said stem is itself in its intermediate control position.
  • said first and said secoiid setting pinions being coaxial and carrying toothings having the same pitch, said second setting pinion having teeth longer than those of said first setting pinion.
  • a watch according to claim 2 said first setting pinion being idly mounted on said second setting pinion.
  • said second setting pinion having a tubular projection, said first setting pinion being idly mounted on said tubular projection, a toothed ring being set with force fit on said tubular projection and holding said first setting pinion axially in place thereon, said toothed ring being connected to said extra hour hand.
  • a watch according to claim 4 said motion works including a cannon pinion carrying said minute hand, a conventional hour wheel carrying the conventional hour hand, a minute wheel meshing with said cannon pinion and carrying a pinion meshing with said conventional hour wheel, and an extra hour Wheel carrying said extra hour wheel, said first setting pinion meshing with said minute wheel and Said toothed ring actuating said extra hour wheel.
  • a watch according to claim 5 the toothing of said first setting pinion being provided on two different axial portions of the pinion, a first portion having a conventional diameter and a second portion having a reduced diameter,
  • tooth gaps being overall the same, said first portion meshing with said minute wheel and said second portion being engaged by said clutch wheel when said stem is in its outermost control position.
  • said conventional and said extra hour wheel being set on one another
  • said clutching means comprising a row of twelve holes provided in one of said hour wheels and a stud being set in the other hour wheel and having a rounded head portion protruding from said other hour wheel, spring means pressing said hour Wheels against one another in a direction parallel to their axis of rotation.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Mechanical Operated Clutches (AREA)
US12046A 1969-02-20 1970-02-17 Watch for indicating time of two geographic zones Expired - Lifetime US3611703A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH258069A CH507544A (fr) 1969-02-20 1969-02-20 Montre comprenant une aiguille d'heures supplémentaire

Publications (1)

Publication Number Publication Date
US3611703A true US3611703A (en) 1971-10-12

Family

ID=4236978

Family Applications (1)

Application Number Title Priority Date Filing Date
US12046A Expired - Lifetime US3611703A (en) 1969-02-20 1970-02-17 Watch for indicating time of two geographic zones

Country Status (5)

Country Link
US (1) US3611703A (de)
CH (2) CH507544A (de)
DE (1) DE2007222A1 (de)
FR (1) FR2033363A7 (de)
GB (1) GB1302418A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756015A (en) * 1972-01-31 1973-09-04 Suwa Seikosha Kk Time correcting device for a watch having plural time-displays
US3765162A (en) * 1971-02-05 1973-10-16 Suma Seikosha K K Watch indicating many times
US3766730A (en) * 1970-06-01 1973-10-23 Suwa Seikosha Kk Universal watch
US3785141A (en) * 1972-01-13 1974-01-15 Suwa Seikosha Kk Mechanism for a timepiece having a plurality of time display
US3815353A (en) * 1973-10-17 1974-06-11 Timex Corp Universal time watch
US3828546A (en) * 1971-02-03 1974-08-13 Suwa Seikosha Kk Setting means for time zone watch with calendar display
US20140177397A1 (en) * 2011-06-21 2014-06-26 Rolex S.A. Timepiece comprising a winding mechanism and at least one mechanism for correcting at least one indicator member

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2617993A1 (fr) * 1987-07-07 1989-01-13 Pincemy Luce Appareil analogique d'indication de l'heure, tel que montre, pendule, reveil
CH673196GA3 (en) * 1988-02-19 1990-02-28 Universal multi-region watch with second display - includes mechanism to allow adjustment of second hour hand with respect to main display
EP1271268B1 (de) 2001-06-28 2008-03-12 Richemont International S.A. Uhr mit zwei Zeitzonen

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3766730A (en) * 1970-06-01 1973-10-23 Suwa Seikosha Kk Universal watch
US3828546A (en) * 1971-02-03 1974-08-13 Suwa Seikosha Kk Setting means for time zone watch with calendar display
US3765162A (en) * 1971-02-05 1973-10-16 Suma Seikosha K K Watch indicating many times
US3785141A (en) * 1972-01-13 1974-01-15 Suwa Seikosha Kk Mechanism for a timepiece having a plurality of time display
US3756015A (en) * 1972-01-31 1973-09-04 Suwa Seikosha Kk Time correcting device for a watch having plural time-displays
US3815353A (en) * 1973-10-17 1974-06-11 Timex Corp Universal time watch
US20140177397A1 (en) * 2011-06-21 2014-06-26 Rolex S.A. Timepiece comprising a winding mechanism and at least one mechanism for correcting at least one indicator member
JP2014517325A (ja) * 2011-06-21 2014-07-17 ロレックス・ソシエテ・アノニム 巻上げ機構と、少なくとも１つの表示部材を修正する少なくとも１つの機構とを含む時計
US9170563B2 (en) * 2011-06-21 2015-10-27 Rolex S.A. Timepiece comprising a winding mechanism and at least one mechanism for correcting at least one indicator member

Also Published As

Publication number Publication date
CH507544A (fr) 1970-08-31
CH258069A4 (de) 1970-08-31
GB1302418A (de) 1973-01-10
DE2007222A1 (de) 1970-09-10
FR2033363A7 (de) 1970-12-04

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