US349896A - Chaeles moelet - Google Patents

Description

(No Model.)

0. MORL ET WINDING; STOP FOR MAINSPRINGS No. 349,896. Patented Sept. 28, 1886.

ATTORNEYS.

INVENTOR Wk r WITNESSES N. PETERS. Fhulu-Uxnographur. Wnhmglnn. 11c.

UNITED STATES PATENT OFFICE.

CHARLES MORLET, OF JERSEY CITY, NEIV JERSEY.

WINDING-STOP FOR MAINSPRINGS.

SPECIFICATION forming part of Letters Patent No. 349,896, dated September 28, 1886.

Application filed November 27. 18. .5. Serial No. 184.097.

To all whom it may concern:

Be it known that 1, CHARLES MORLET, of Jersey City, in the county of Hudson and State of New Jersey, have invented a new and useful Improvement in Check Mechanisms for the Mainsprings of Watches, of which the following is a full, clear, and exact description.

The object of my invention is to provide a new and improved stop or check mechanism for preventing the overwinding and consequent breaking of the mainsprings of watches.

The invention consists in the construction and combination of parts and details, as will be fully described and set forth hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a face view of the works ofa watch provided with my improved stop mechanism for preventing the overwinding of the mainspring. Fig. 2 is a top view of the barrel containing the mainspring. Fig. 3 is a.

plan view of the under side of the wheel for turning the arbor of the mainspring. Fig. 4 is a cross-sectional view on the line w at, Fig. 1. Fig. 5 is a detail sectional View of the top of the spring-barrel. Fig. 6 is a detail plan view of the spring-ring on which the pin is held.

The mainspring A is contained in the circular barrel B, provided with the teeth 0, for operating the wheels of the watch mechanism in the usual manner. One end of the spring A is secured to the side of the barrel B, and the other end is secured to the spindle D, passed through the center of said barrel,and having its upper end squared to fit in the squared aperture E in the center of the winding cogwheel F, placed on the top'of the barrel B, and provided in its under side with the annular groove G around the central opening, E, and with the circular recess H, in which the split spring-wheel J is pivoted, which is pro vided with the three (more or less) teeth K and the two shoulders or offsets L. That part of the pivot M on which the wheel J turns is made wedge-shaped in cross-section, as shown in Fig. 4:. A

From the top of the barrel B the pin 0 pro- (No model.)

jects upward and into the annular groove G- in the under side of the wheel F, which pin is secured on a split ring, W, clamped on the dovetailed neck WV, projecting from the under side ofthe top ofthe barrel B. The thin cover ofthe barrel would not have sufficient strength to hold the pin 0, and for that reason the steel ring has been provided. Snapping the ring IV on is the simplest method of fastening it.

I do not limit myself to this way of fastening the pin, as it may be fastened in any other way; but I prefer this construction.

The wheel F is provided with the slot P at the annular groove G, and the face-plate Q of the works is provided with the slot R, as shown.

The usual devices for turning the barrel-arbor D from the crown, as in stem-winders, are provided; or the arbor D can be revolved direct by means of a key.

The wheel J, being split and made of spring material, has considerable friction, which holds it and prevents it from revolving too freely.

The operation is as follows: In Fig. 1 the parts are shown in the positions they have when the mainspring is wound as much as possible. In winding the spring the wheel F is revolved in the direction of the arrow a, and turns the arbor D, whereby the mainspring is wound on said arbor. The pin 0, projecting from the top of the barrel B,isfixed, or comparatively fixed, as the movement of the barrel B is hardly perceptible, and every time the wheel F makes a revolution the pin 0 engages one of the teeth of the wheel J, and thus the said wheel is revolved in the direction of the arrow 6, and thereby the wheel J is gradually moved into such a position that when the spring is wound as far as it can be without injury to the same the pin 0 will be adjacent to and rest against the edge of the wheel J, whereby the winding-wheel F is prevented from being moved farther in the direction of the arrow a-that is, further winding or overwinding of the mainspring is prevented. As the mainspring gradually uncoils, the pin 0 is brought into such a position as not to interfere with turning the wheel F in the direction of the arrow to.

wheel revolving with the said wheel on the arbor, and of a pin on the barrel and adapted to engage with the teeth of the toothed wheel, substantially as herein shown and described.

2. In a watch, the combination, with the mainspring-barrel and the spring-arbor, of a winding-wheel turning with the arbor, a

toothed wheel in a recess in the wheel on: the

arbor, and a pin on the barrel adapted to engage with theteeth of the toothed wheel, substantially as herein shown and described;

3. In a watch, the combination, with the mainspringbarrel and the spring-arbor, of the wheel F, mounted on the spring-arbor to turn with the same, the wheel J, mounted to turn in a recess in the under side of thegwheel F, and the pin 0, projecting from the top of the spring-barrel into the groove G in theunder side of the wheel F, and adapted to engage with the teeth of the wheel J, substantially as herein shown and described.

4. In a watch, the combination, with the plate Q, having the slot R, of the'springrbarbor, and the toothed wheel J on the under side of 1 the wheel F, the said wheel F having the slot P, substantially as herein shown and described.

5. In a watch, the combination, with the wheel F, of the split spring w-heel .T, pivoted in the recess in the wheel F, and provided with teeth, substantially as herein shown and described.

6. In awatch,theeombination,withaspringbarrel anda barrel-arbor, ofa' spring-ring held on the under side of the top of the barrel, and a pin projecting from said spring-ring up through and from the top of the barrel, a windin g-wheel mounted'on the arbor}, and atoothed wheel pivoted on the winding-Wheel and adapted to engage with the above-mentionedwheel, substantially ashereinshown" andat:

scribed.

7. In'a w'atch;the combinatiomwit-h as' ring:

barrel" provided on'itsunder side with a pro ject'ion, L of a" spring'ringsnapped on saidpr'ojecti'on, a pin projecting from said ring; up through and from'the to'p of thebarr'el, a winding-wheel on thear-bor above the casingganda toothed wheel= pivotedon the wind'ingw'he'e'l and adapted toeng'agewith said'pin, substantially as herein sho'w'n anddescribed. I

cH'ARLEs MORLE'T,

Witnesses:

OSOARF. GUNZ, O. SEDGWIOK-v

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