US927877A - Winding and hand-setting mechanism for watches and the like. - Google Patents

Description

H. BOOST. WINDING AND HAND SETTING MEGHANISM Fon WATCHES' AND THE LIKE.

APPLICATION FILED JULY 28, 1908. y 927,877, Patented July 13, 1909.

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Iiilllmxrl H. BOOST.. v WINDING AND HAND SETTING MDGHANISM POD WATCHES AND THE LIKE.

APPLICATION IILD- JULY 28. 1908.

Patented July 13, 1909.

2 SHEETS-SHEET 2.

Armnw. a. annum co,. Pnowumoamwina WASHINGTON D c UNITED STATES PATEN FTSE.

HERMANN BOOST, OF LE LOCLE, SWITZERLAND.

WINDIN G AND HAND-SETTING MECHANISM FOR WATCHES AND THE LIKE.

To @ZZ 'whom 'Zt may concern.

Be it known that I, HERMANN Boosr, of Le Locle, Canton of Neuchtel, Switzerland, have invented a new and useful Improvement in finding and Hand-Setting Mechanism for' latches and the Like, of which the following is a full, clear, and exact description.

The accompanying drawing shows by way of example two embodiments of the invention.

Figure l shows one embodiment in plan partly in section. Fig. 2 is a plan view on the opposite side to Fig. l. Fig. 3 is a cross section on the broken line A-B-O of Fig. l. Fig. at shows in plan partly in section, a second constructional form of the mechanism forming the object of the invention. Fig. 5 is a cross section on the line D-E of Fig. 1l. Fig. 6 shows a modified construction of a detail, in plan.

Upon the square on the false rod a, which is loosely fitted into the plate o, the sliding pinion c is capable of displacement in the longitudinal direction; this pinion may either be brought into engagement with the pinion Z of the winding mechanism for winding, or with an idle pinion, not shown in the drawing, for setting the hands.

The winding pinion Z rotates freely on the journal e on the winding rod c which is bored throughout its entire length and in `which the winding rod f is able to move in the longitudinal direction only. This rod acts atI its extremity opposite to the pendant of the watch, upon a small cylindrical rod g, the end /L of which rests upon the eX- tremity of a lever c', pivoted at 7c and having upon it a toothed segment Z meshing with a similarly toothed segment m on a disk n which is pivoted at 0. Upon this disk n (and likewise pivoted at o) there is arranged a piece p provided with a linger g engaged in the groove r of the sliding pinion. To the oscillating disk n there is fixed a pin s passing into a hole t through the plate b, its extremity opposite the said hole being engaged between a part u ot the disk 79 and the end of a circular spring o formed in one piece with the disk p.

Beneath the rocking` lever z' there is arranged in a groove m in the plate a circular spring y, one of the ends of which is attached to the plate b while the other eX- Specicaton of Letters Patent.

Application filed July 28, 1908.

Patented July 13, 1909.

Serial No. 445,827.

tremity is attached to the lever c'. This spring y has a constant tendency to keep together the end ot' the lever z' and the end /i of the rod g and also, by the action of the pin s against the part u ot the disk p, to

Vretain the sliding pinion c in its lower posi- -tion (Figs. l and for setting the hands.

Beneath the plate there is formed a rectilinear groove c, as shown in Fig. 2, into which a rod Z rectangular in section, ending toward the interior of the movement in a bevel 2 and outside of the movement in a hook 3 to withdraw said rod, can be introduced. The groove e passes through the hole 2f and by introducing the rod Z the latter displaces to one side the pin s which, acting against the end of the spring o, holds the sliding pinion c in engagement with the winding pinion cZ,in order that the watch movement may be wound when out of its case. The rod Z has to be withdrawn when the movement is to be placed in the watch case. The winding rod j", in this embodiment of the invention (Figs. l to 3), is a part of the spring device in the pendant of the case. This is a known device which insures the stability of the rod in both its positions, z'. e. when pushed in and drawn out.

Zhen the winding rod f is drawn out, the parts of the mechanism occupy the position represented in Figs. 1 and 3; that is to say, under the influence of the spring y the finger g of the part 29 holds the sliding pinion c in the position in which it meshes with the idle wheel of the hand setting' mechanism.

By pressing' the rod f, the lever c' is caused to traverse a fraction of a revolution, in displacing the spring y and causes the rotation of the piece n in the opposite direction likewise through a fraction of a revolution). The pin s in pressing against the end of the spring o in the direction indicated by the arrow 4 (Fig. l) produces the rotation of the part p, the iinger q of which presses the sliding pinion c against the winding pinion Z for winding the movement. In this position not only does the spring o insure contact between the ratchet teeth 5 and 6 of the pinions c and CZ respectively while enabling the engagement and disengagement of these pinions, but this spring o also permits of a supplementary travel of the rod f for the operation of the secret opening spring for the watch casing, as by pressing the rod farther home the only effect produced is to displace the spring o.

'ln the construction illustrated in Fig. t, the false rod is dispensed with, and it is the winding rod 7 itself which operates the lever z', its end 8 resting upon this lever. rlhe sliding pinion c, like the winding pinion, is arranged directly upon the winding rod 7 and the stability of the pulled and pushed7 positions of this rod is insured, not by means of the known arrangement of a spring catch in the pendant, but by a pivoted spring bolt 9 (Fig. 5) constantly resting against the rod 7 and assuming a position on one side or the other of a projection 10 on this rod, according as the said rod is pushed or pulled. The rod 7 is prevented from leaving the movement completely by a bearing 11 on this rod, against which the spring bolt strikes when the said rod is pulled out to its fullest extent (Figs. 1 and The operation of this form of mechanism is similar to that described above- To enable the winding rod to be withdrawn from the movement readily, and for facilitating the placing of the movement in its case and withdrawing it therefrom, a screw 12 comprising a frusto-conical part 13 is screwed into the plate Z). This part 13 is placed beneath an inclined surface 14, on they spring bolt 9 in such a manner that by unscrewing this screw slightly its part 13 lifts the spring bolt pivoting at 15 and releases the rod 7 which can be withdrawn from the movement. The part carrying the linger driving the sliding pinion (which part is connected by a spring with the toothed member meshing with the toothed lever operated by the winding rod) may be in one piece with the said toothed member, as shown in Fig. G. In this construction, the finger 16 engaged in the groove 1 in the sliding pinion c for displacing it longitudinally, is constituted by the end of a spring 17 shaped as the arc of a circle, iiXed to the pivoted part 1S meshing, by means of its teeth m, with the teeth Z on the lever z'. The operation of this modified form of mechanism is identical with that described above; the spring 17 performing absolutely the same function as the spring o in the constructional forms represented in Figs. 1 to 4t.

The form and dimensions of the parts described may vary, of course, without departing from the invention.

Having now described my invention I claim as new and wish to secure by Letters Patent 1. In winding and hand-setting mechanism for watches, the combination of the winding rod, the sliding pinion, a rocking lever operated by the winding-rod, an in elastic disk oscillated by said rocking lever and carrying a pin, and a second disk having a common pivot with the first and formed with a part to engage and operate the sliding pinion and with a spring abutting against said pin.

2. In winding and hand-setting mechanism for watches, the combination with the winding rod and the sliding pinion, and the mechanism to shift said pinion comprising a disk connected therewith. and provided with a pin, of a sliding rod movable in a groove and adapted to engage and displace said pin.

3. In winding and hand-setting mechanism for watches, the combination with the sliding pinion, and the mechanism to shift said pinion comprising a disk connected therewith and provided with a pin, of a rod slidable in a groove in the movement-plate and having a beveled end by which said pin is shifted laterally.

t. In winding and hand-setting mechanism for watches, the combination with a winding-rod having a projection, of a pivoted spring-bolt adapted to be held by its spring action against the rod at either side of said projection, and a screw having an inclined surface by means of which said spring-bolt may be raised on its pivot.

5. 1n a winding and hand-setting mechanism for watches, the combination, with the plate, the winding rod and the annularlygrooved sliding pinion, of a rocking lever abutting the inner end of the winding rod, a disk pivoted to the plate and engaging the rocking lever, a second disk pivoted to the plate and having a shoulder and a circular spring and carrying a finger engaging in the annular groove of the sliding pinion, and a pin carried by the first disk and engaging between the shoulder and the end of the circular spring.

G. In winding and hand-setting mechanism for watches, the combination, with the plate, the winding rod and the annularlygrooved sliding pinion, of a toothed rocking lever abutting the inner end of the winding rod, a toothed disk meshing with the rocking lever and movable on a pivot-pin carried by the plate, a second disk movable on the said pivot-pin and having a shoulder, a circular spring and carrying a linger engaging in the annular groove of the sliding pinion, and a pin carried by the toothed disk and engaging between the shoulder and the end of the circular spring.

7. In winding and hand-setting mechanism for watches, the combination, with the plate, windino. rod and the annularlygrooved sliding pinion, of a toothed rocking lever pivoted on the plate and abutting against the inner end of the winding rod, a spring pressing the rocking lever to hold it against the winding rod, a toothed disk meshing with the rocking lever and movable on a pivotvpoint carried by the plate, a second disk movable on the Ysaid pivot point and having a shoulder and a circular spring and carrying a finger engaging in the annular groove of the sliding pinion, a pin oarried by the toothed disk and engaging between said shoulder and the end of the circular sp1-ing, and additional means for engaging and moving the last-named pin.

In testimony, that I claim the foregoing as niy invention, I have Signed iny name in presence of two subscribing Witnesses.

HERMANN BOOST.

Vitnes-Ses HANS I-IUNZIKER7 JRALD SANDOZ.

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