US1871936A

US1871936A - Winding and setting device for timepieces

Info

Publication number: US1871936A
Application number: US466244A
Authority: US
Inventors: Wilsdorf Hans
Original assignee: Individual
Current assignee: Individual
Priority date: 1929-07-11
Filing date: 1930-07-07
Publication date: 1932-08-16
Anticipated expiration: 1949-08-16
Also published as: FR698124A; DE519012C; CH151574A

Description

Aug. 16, 1932. H. WILSDORF 1,871,936

WINDING AND SETTING DEVICE FOR TIMEPIECES Filed July 7, 1930 2 Sheets-Sheet 1 r llllllllllllllllllllfl I l I ll lhhl u I 12 v U INVENTOR mbar rrf ATTORNEY) 6, 1932. H'. WILSDORF I 1,871,936

WINDING AND SETTING DEVICE FOR TIMEPIECES- Filed July 7, 19:50 2 Sheets-Sheet 2 Patented Aug. 16, 1932 UNITED mm PATENT @FHICE HANS WILSDORE, on GEN VA, SWITZERLAND WINDING AND snrr'rnvs nnvrcn non TIMEPIECES 1 '1 Application filed .Tu'1yf7, 1930, Serial no. 466,244, and in Switzerland my 11, 1929.

This invention relates to a windingand setting device for timepieces and particularly to a device of. this class which is adapted for use with the so-called liuid tight watches.

In such watches the winding crown is normally held in intimate contact with the watchcase to prevent entrance of any moisture into the clockwork.

The object of the invention is the provision of a device of the above mentioned class inwhich an axially movable winding and set ting stem, which as usual operates the main spring of the watch andth-e minute wheel work, will bedisconnected' from both main spring and minute wheel work when the stem is in its innermost position relative to the watch in order to allow the winding crown to be brought int'o' intimate contact with the watch case. I

In order that the invention may be more clearly understood it will now be described with reference to the accompanying drawings in which,

Figures 1, 2 and 3:are three tron-t elevations of a winding and setting device according to the invention and showing the same in three different working positions.

Fi nre 4 is a partial view of the winding and getting stem. t a 7 Figures 5, 6 and 7 are front elevations of a modified arrangement of winding and setting means showing the parts also in three dif ferent working positions.

H1 is the winding stem hav ng agroove '2in which engages a hook 3 of a locking lever 1,

This latter is pivoted at 5and is provided with an abutting pin 6 with which is adapted to co-operate one of the three springnotches 7, 8 or 9, of the spring arm 10. 11 is a slid- 0 ing pinion sliding upon a squared portion 12 of the winding rod or stem and adapted to engage either with a winding pinion 13 acting on the main spring or with the setting gear 14 of the minute wheel work; The sliding pinion is, in the usual manner, under the action of an oscillatable lever 15 under the influence of the spring 16. i

Fig. 1 shows the neutral position or the innermost position of the winding stem or rod. In thisposition,the shoulder 17 of the said rod maintains the slidingpinion remote from the winding pinion 13, against the =action of the spring 16, the sliding pinion-not coming however intoengagement with the setting gear 1 1. The notch is in engagcment with the pin 6. 1 Supposing thatthe winding crown show-n} fined on the rod or stem 1, is screwed on to the pendant 0n unscrewing the crown, it can be turned freely and the winding stem and the sliding pinionwillinove with the crown, but the winding stern being separated both from the driving barrel as well as from the time setting wheels will turn freely. v

"When the crown is separated from the pendant and a pull is exerteduponit, the lever-1 will be brought into the position shown at Fig. 2 and at the same time the shoulder 17 will move awayfrom the sliding pinion, which latter under the action of the spring 16" will come into engagement with the winding pinion 13 and winding may be effected in the usual manner. The various parts are then kept in place by the en- '75 gagement of the notch 8 withthe pin 6;

If a further pull isexerted upon the stem 1, the lever twill pass into the position shown at Fig. '3'the position in which the notch 9 will co-operate with the'pin 6 and in which 89 the spur 18 of the lever 4 comes into engage ment with the shoulder 19 or the oscillatab le lever. This will displace thesliding pinion towards the bottom and will bring it into engagement with the minute mechanism; The setting will now be effected in the usual manner; j I

After this, a first pressure will bring back the parts in'to'the windingposition, and a second pressure into the neutral position, a L90 position. in which the crown may be freely screwed again upon the pendant.

The invention is of course not limited to the winding of watches with a sliding pinion and a lever, it may also be applied to watches wound by a push mechanism or by a rocking lover or to other types of watches.

In the modification shown in Figures 5, 6 and 7, 21 is the case 01" the watch. 22 is the V pendant on which is adapted *to screw the crown 23 fixed in the usual manner on the winding stem 1. This latter is again provided with the circumferential groove 2 in which is engaged the stud 3 of the locking lever 27. This latter is pivoted at 28. 11 is the usual sliding pinion adapted to slide freely on a squared portion 12 of the winding stem'and controlled by the oscillatable lever 30 pivoted at 31 and exposed to the action of a spring 32 which tends always to push it upwards. 13 is the winding pinion and 14 is the setting, mechanism. 35 is 'a spring arm provided'on the plate 34 and having two notches .36 and 37 intended toco-operate with the pin 38 of the lever 27 and to yieldingly maintain the stem 1 in winding or setting position.

The lever 27 is provided with a spur 39 intended to co-operate with a supporting surface 40, constituted as an arc of a circle which is formed by the oscillating lever 30, the center of this circular arc being on the pivotal axis 28 of the lever 27. The extremity of the surface 40 on the oscillatable lever 30 is provided with a recess 41 followed by a nose 42.

The operation is as follows.

Fig. '5 shows the normal position in which the crown 23 is completely screwed to the pendant. The spur 39 of the lever 27 is thenin contact with the supporting surface 40 of the oscillatable lever 30 and maintains this lever in opposition to its spring 32 in a position in which the sliding pinion 11 is not in engagement either with the winding pinion. or with the setting mechanism 14.

Suppose that it is desired to wind the watch; the crown 23 is unscrewed from the top of the pendant 22. During the whole of this operation, the lever 27 operatedby the winding stem 1, will turn'about its pivotal axis 28, its spur 39 remaining in contact with the supporting surface 40 so that the oscillatable lever 30 will retain its same position. At the moment when the crown 23 is entirely unscrewed the spur 39 leaves the supporting surface 40 and comes opposite the recess 41. The lever 30 being no longer held by the spur 39 will rise up under the action of its spring 32 and will bring the sliding pinion 11 into the engagement with the winding pinlon. At the same time the pin 38 engages in the notch 36 for the spring arm 35 and thus yieldingly maintains the different parts in the position shown in Fig. 6, which is the position for winding.

For setting it suffices to draw the crown 23 still further towards the outside, see Fig. The pin '38 of the lever 27 engages then t. in the notch 37 of the spring arm 35 which holds all the parts in the position shown in Fig. 7. In this position the spur 39 of the lever 27 has come in contact with the nose 42 of the lever 30 whereby this latter has '65 been displaced towards the bottom and has rsvrese brought the sliding pinion 11 into engagement with the setting mechanism 14.

I claim:

1. In winding and setting means for fluid tight watches, an axially movable winding and setting stem provided with a winding crown and adapted to be brought in three predetermined positions, a spring motor winding pinion, a minute wheel work, a sliding pinion adapted for movement relative to the winding and setting stem and to be opera-tively connected with the minute wheel work or with the spring motor windmost position relative to the watch, on the sliding pinion to disconnect such pinion from either the minute wheel work or the spring motor winding pinion.

2. In winding and setting means for fluid tight watches, an axially movable winding and setting stem provided with a winding crown and adapted to be brought in three predetermined positions, a spring motor winding pinion, a minute wheel work, a

sliding pinion adapted for movement relative to the winding and settingstem and to be operatively connected with the minute wheel work or with the spring motor winding pinion, a locking lever engaging the winding and setting stem, a spring arm provided with means cooperating with said locking lever to yieldingly maintain the" winding and setting stem in windin 'or setting position, a spring actuated"oscillatable lever engaging said sliding pinion and cooperating with said locking lever to'move said sliding pinion upon axial displacement of the winding and setting stem, and means associated with the winding and setting stem and acting, when the stem is brought 2115 into its innermost position relative to the watch, on the sliding pinion to disconnect such pinion from either the minute wheel work or the spring motor winding pinion.

. 3. In winding and setting means for fluid tight watches, an axially movable winding and setting stem provided with a winding crown and adapted to be brought in three predetermined positions, a spring motor winding pinion, a minute wheel work, a sliding pinion adapted for movement relative to the winding and setting stem and to be operatively connected with the minute wheel work or with the spring motor winding pinion, a locking lever engaging the winding and set ting stem, an oscillatable lever engaging said sliding pinion, and coaoting means on said locking lever and said oscillatable lever to maintain. said sliding pinion disconnected from either the minute wheel work or the spring motor driving pinion when the winding crown is in fluid tight contact with the watchcase.

4:. In winding and setting means for fluid tight watches an axially movable winding and setting stem provided with a winding crown adapted for fluid tight engagement with the watchcase when not in winding or setting position, a spring motor winding pinion, a minute wheel work, a sliding pinion adapted for movement relative to the winding and setting stem and to be operatively connected with the minute wheel work or with the spring motor winding pinion, a rotatably mounted locking lever engaging the winding and setting stem, an oscillatable lever engaging said sliding pinion, said locking lever being provided with a spur and said oscillatable lever being provided with a surface formed as an arc of a circle having its center situated on the axis of rotation of the locking lever, said spur cooperating with said surface to maintain the sliding pinion dising lever to yieldingly maintain the winding stem in winding and setting positions.

6. In winding and setting means for fluid tight watches, an axially movable winding and setting stem provided with a winding crown and adapted to be brought in three predetermined positions, a spring motor winding pinion, a minute wheel work, a sliding pinion adapted for movement relative to ing pinion from either the minute wheel i work orthe spring motor winding pinion when said stem is in its innermost position relative to the watch. i c.

In testimony whereof I aifix my signature.

HANS VVILSDORF.

connected from either the minute wheel work or the spring motor winding pinion as long as the winding p1n1on is in engagement w1th the watchcase,

5. In winding and setting means for fluid tight watches, an axially movable winding and setting stem provided with a winding crown adapted for fluid tight engagement with the watchcase when not in winding or setting position, a spring motor winding pinion, a minute wheel work, a sliding pinion adapted for movement relative to the winding and setting stem and to be operatively connected with the minute wheel work or with the spring motor winding pinion, a rotatably mounted locking lever engaging the winding and setting stem to be rotated upon axial displacement of the stem, an oscillatable lever engaging said sliding pinion, said looking lever being provided with a spur and said oscillatable lever being provided with a surface formed as an arc of a circle having its center on the axis of rotation of the locking lever, said spur cooperating with said surface to maintain the sliding pinion disconnected from either the minute wheel work or the spring motor winding pinion as long as the winding stem is in engagement with the watchcase, said oscillatable lever being provided with a recess cooperating with said spur on the locking lever to bring the sliding pinion in engagement with the spring motor winding pinion, a projection on said oscillatable lever also cooperating with said spur to bring the sliding lever in engagement with the minute wheel work, and a spring arm provided with means cooperating with the lock-