US325536A - Stem-winding attachment for watches - Google Patents

Description

(No Model.) 2 SheetsSheet 1.

G. B. HART.

STEM WINDING ATTACHMENT FOR WATCHES.

No. 325,536. PatentedSept. 1, 1885.

Z W w MW m (No Model.) 2 Sheets-Sheet 2.

G. E. HART.

STEM WINDING ATTACHMENT FOR WATCHES.

No. 325,536. m Patented Sept. 1', 1885.

, said plate separated from each other.

UNITED] STATES PATENT Orrics.

GEORGE E. HART, OF VVATERBURY, CONNECTICUT.

STEM-WINDING ATTACHMENT FOR WATCHES.

SPECIFICATION forming part of Letters Patent No. 325,536, dated September 1, 1885.

Application filed June '2, 1884. (No model.)

To all whom it may concern:

Be it known that I, GEORGE E. HART, of Waterbury, in the county of New Haven, and in the State of Connecticut, have invented certain new and useful Improvements in Stem- WVinding Attachments for WVatehes; and I do hereby declare that the'followin g is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which Figure 1 is a perspective view of the pillarplate of my watch from the dial side, the dial being removed. Fig. 2 is a like view of the same from the'opposite side. Figs. 3 and 4 are respectively perspective views of the in-' ner faces of the inner and outer sections of Fig. 5

. is a like view, enlarged, of parts of the hand setting and spring-winding mechanism separated from each other. Fig. 6 isa perspective View of the lower side of the yoke and pushstud. Fig. 7 is a plan view, from the lower side, of said yoke and its wheels, the full lines showing the normal position of the winding wheel and the dotted lines its position when turned backward and tripping over the teeth of the winding-arbor wheel. Fig. 8 is a plan view of said mechanism as combined with the pillar-plate, and normally in engagement with the winding-arbor wheel, a portion of the outer section of said plate being broken away; and Fig. 9 is a like view of the same with said winding and setting mechanism in engagement with the dial-wheels.

Letters of like name and kind refer to like parts in each of the figures.

The design of my invention is to increase the efficiency, to simplify the construction, and to lessen the cost of pocket time-pieces; to which end'said invention consists, principally, in a watchmovement in which the stem-winding and hand-setting mechanism is contained within an interior recess in a sectional plate, and is held in position therein by the union of the sections, substantially as and for the purpose hereinafter specified.

It consists, further, in a stem-winding and hand setting mechanism for watches, in which the yoke that forms a pivotal bearing for the winding and setting wheels, the ratchetspring, and the pushspring are constructed from one piece, substantially as and for the purpose hereinafter set forth.

hand-setting attachment for watches, in which the winding-wheel pivoted thereto is held-in yielding contact with its hearing by means of a spring, substantially as and for the purpose hereinafter specified.

It consists, finally, in a stem-winding and hand-setting mechanism for watches, in which the push-stud is made separable from the yoke, and is adapted to be connected therewith after the movement is in the case, substantially as and for the purpose hereinafter shown.

In the annexed drawings, A. and B represent the outer and inner sections, respectively, of a watch-plate, which sections are united upon a plane that is parallel with their outer faces, and when thus united have the external shape and size of an ordinary solid watch-plate.

Within the contiguous faces of each section is formed a recess, a or b, that coincides with a like recess in the opposite section, and atitscenter is provided with an axial boss, a orb, which has its top (lush with the general surface of its section, and when said sections are combined abuts against the corresponding boss of theopposite section.

Pivoted upon the combined bosses a and I) is a yoke, C, which, as seen in Figs. 5 and 8, has an Lshape in plan view, and is pivoted at theintersection of its arms. At the end of one arm is provided a stud, 0, upon which is jonrnaled a toothed wheel, D,while within the end of the opposite arm, at its outer side, is formed a half-round recess, 0, that is inclosed by means of a spring, 0'. Said spring extends from the center of said yoke along the open. side of said recess, and is formed of or from the same piece of steel as the yoke.

Within the recess 0 is journaled an axial stud, c, that projects downward from a toothed wheel, E, which has substantially the size of the wheel D. Said axial stud or journal is held with a yielding pressure within said re cess by means of the spring 0 and may be moved outward from the same a certain distance, for purposes hereinafter described.

Between the wheels D and E is a toothed wheel, F,which meshes with the same, is journaled upon the bosses a and b, and is driven by means of a crown-wheel, H, upon the arbor h, within the stem. Said wheel E meshes with a wheel, I, upon the barrel-arbor K, and is held in engagement therewith by means of a spring, 0 that forms part of and projects from the inner side of the same, near the recess c, to or beyond the opposite end of said yoke, and at its outer free end engages with a stud, b, which projects upward from the plate B \Vhen the Wheel E is rotated in the direction necessary to wind the mainspring of the watch, as indicated by the arrow, it will remain in engagement with and rotate the wheel I; but when turned in an opposite direction the outward pressure upon said wheel E will overcome the force of the spring 0*, and will force the former outward suffieiently'to cause its teeth to slip over the teeth of .said wheel I, the arrangement enabling said wheel E to wind said mainspring when rotated in one direc' tion, and to act as a ratchet when rotated in an opposite direction.

The wheel D is contiguous to one of the dial wheels L, and a slight movement of the yoke 0 upon its axial bearing will cause said wheels to mesh, so as to enable the hands to be set through the stem. Such movement is effected by means of a push-stud, M, which engages with the stud 0 below the pillar-plate, and from thence extends outward through a suitable opening in the case-center.

In order that the push-stud M may be detached from the movement and placed in position after said movement is within the case, its inner end is forked and provided with a bearing, on, that is adapted to embrace the necked projecting portion of the stud c. Said bearing is formed within the inner contiguous edges of the divided rim end of said stud, and in order to engage or disengage said parts sufficient force must be used in moving said stud longitudinally to cause its forks to spring apart, as in case of the placing of a clothes-pin over a clothes-line.

This construction enables the movement to be as easily placed in or removed from position within the case as though not provided with stem-setting mechanism, and materially lessens the time and labor required for such operations.

Having thus fully set forth the nature and merits of my invention, what I claim as new 15-?- 1. In a watch-movement, in combination with a pillarplate which is composed of two disks that are adapted to be placed one upon the other to form a plate of ordinary form, and are provided within their contiguous faces with coinciding recesses, which together constitute one interior recess, stem winding and setting mechanism placed within said interior recess, substantially as and for the purpose specified.

2. In a watch-movement, in combination with a pillar-plate which is composed of two disks that are placed one upon the other to form a plate of ordinary form, and are provided within their contiguous faces with an interior recess,-stem winding and setting mechanism which is placed within such recess, and is held in position therein by the union of said plate-sections, substantially as and for the purpose shown.

3. A stem-winding and hand-setting mechanism for watches, in which the yoke that forms a pivotal bearing for the winding and setting wheels, the ratchet spring, and the push-spring are constructed from one piece, substantially as and for the purpose set forth.

4. A yoke having a ratchet-spring attached to or forming a part of the same, substantially as and for the purpose shown.

5. A yoke having a push-spring attached to or forming a part of the same, substantially as and for the purpose shown and described.

6. A stem-winding and hand-setting attachment for watches, in which the winding-wheel, pivoted thereto, is held in yielding contact with its bearing by means of a spring, sub stantially as and for the purpose specified.

7. Astem-winding and hand-setting mechanism for watches, in which the push-stud. is made separable from the yoke, and is adapted to be connected therewith after the movement is in the case, substantially as and for the pun pose shown.

In testimony that I claim the foregoing I have hereunto set my hand this 15th day of March, 1884.

GEORGE E. HART.

\Vitnesses:

Gno. S. PRINDLE, E. L. BRONSON.

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