US447973A

US447973A - Bernard reber

Info

Publication number: US447973A
Authority: US
Publication date: 1891-03-10
Anticipated expiration: 1908-03-10

Description

(No Model.)

B. REBER. RBPEATING WATCH.

Patented Mar. 10, 1891.

UNITED STATES PATENT OEEIcE.

BERNARD REBER, OF LOOLE, SIVITZERLAND.

REPEATlNG-WATCH.

SPECIFICATION forming part of Letters Patent No. 447,973, dated March 10, 1891. Application filed June 30, 1890. Serial No. 357,232- (No model.) Patented in Switzerland November 23, 1888', No. I02.

T0 to whom it may concern:

Be it known that I, BERNARD REBER,\vatchmanufacturer, of Locle, Switzerland, have invented new and useful Improvements in Repeating-\Vatches, (for which I have obtained Letters Patent in Switzerland November 23, 1888, No. 102,) of which the following is a specification.

The objects of my invention are as follows: first, to obtain a very smooth and easy movement of the lever which projects out of the watch-case and acts upon the repeating mechanism; second, to arrange such mechanism within less space, so as to be able to use larger wheels for the watch-movement in a given cliameter 0t repeating-watches; third, to simplify the mechanism for the quarters. These three objects are eit'eeted by the devices of my improvement, which are shown in the accompanying drawings, wherein- Figure l is a plan view complete of the repeating mechanism in large size. Fig. 2 is a plan View of the mechanism for operating the hammers; and Fig. 3 is a sectional elevation of the same. Figs. 4: and 5 are detached views showing the operation of the toothed plates separately and together, as will be more fully hereinafter set forth. Figs. 2 to 5, inclusive, are shown of exaggerated size.

In order that the drawings may easily be understood I have shown in the same only those parts to which the specification refers, the wheels driving the repeating mechanism and its speed-regulator being made as usual in repeating-watches, and not being necessary to readilyunderstandtheimprovements claimed.

In my improvements the lever A has its pivot a near the center of the watch, and the end projects out of the case where it can be pushed by the finger in the direction indicated by an arrow. The lever C is pivoted to the lever A at c, and has a forked end bearing upon the pin (Z of the rack-leverD, which rack-lever D is pivoted at (l and carries an arm D, adapted to engage the hour-snail J. A spring B, fixed to the plate bears upon a pin 1) upon the lever A to move the latter and the pivoted lever 0 back to their normal position. (Shown in Fig. 1.)

The raolclever D acts, as usual, upon a pinion fixed to the spring-barrel axis E of the repeating mechanism, which carries the usual plates n and on being operated to move both hammers.

Both hammers M and N are superposed and pivoted upon a common axle or stud K, (see Figs. 2 and 3,) and the toothed plates 71 m are also pivoted upon the same stud. The hammer N carries a pin n acted upon by the toothed plate a, and the hammer M carries a pin m acted upon by the toothed plate m, and the springs n m bear upon the pins 02? m to impart to the hammers the striking-blow in the return-movement.

The twelve teeth of the hourrack F act upon the toothed plate 01-, which is in the same plane as these teeth, and the three teeth of the quarter-rack F are wider than the teeth of rack F, and are the full depth of the spring-barrel and are in the plane of the teeth of both plates n and m, and these teeth act upon the toothed plates m and n. The points of the teeth of plates on n are of different lengths, so that one tooth is liberated by the teeth of F slightly sooner than the other, thus causing the hammers to strike the well-known double stroke separately but close together, sounding the quarter-hours in double tune. The sounding of the quarters is regulated by means of the hook-arm G, pivoted to the lever H, and having a projection g acted upon by the spring J, which tends to bring the end of said lever H into contact with one of the steps of the usual quartersnail I. A four-toothed rack f, affixed upon the wheel or rack F engages the hook-arm Ginto either its first, second, third, or fourth tooth, according to the one of the four positions in which said hook-arm'G has been placed by the end of the lever H, bearing upon the snail I, nearly simultaneously with the rack-wheel F, being turned to its operative starting-point by a depression of the lever A, and before it returns under the action of the repeating Fig. 4 represents the toothed plate mainspring.

The rack f, being thus hooked to the arm G, the latter will stop the rotation of wheel F as soon as the projection of the lever H bears against the screw-stop h.

The toothed plate on is maintained in the normal position shown in Figs. 1 and 2that is to say, bearing against the pin m of hammer M, by means of a spring m The toothed plate n is provided with a pin 0 bearing against the toothed plate on by the jointaction of the pin n and spring it when n is at V mers are to be stopped to furnish a full stroke and clear sound. This is obtained by means of the conical-ended screw 1) acting upon the other end of the lever l, and the partial rotation of this screw shifts said leverinto the required position.

I claim as my invention 1. In repeating-watches, the combination, with the lever A, havingapin b, and its pivot a near the center of the Watch, of an arm 0,

pivoted to the lever A at c and having a forked lower end, the rack-lever D and its pin-d, against which the forked end of arm 0 bears, and a spring B, bearing against the pin 17, substantially as and for the purpose specified.

2. In repeating-watches, the superposed hammers M and N, oscillating upon the same pin or axis K, as set forth.

3. In repeating-watches, the combination, with the pin or axis K, of the superposed hammers M and N and the toothed plates n and m, all mounted and oscillating upon the same axis, as set forth.

4. In repeating-watches, the combination, with the toothed spring-barrel and mechanism for imparting a partial rotation to the same in one direction, of the toothed rack f, the hook-arm G, and its projection g, the spring J, the lever H, to which the arm G is pivoted, the snail I, and screw-stop 71, adapted to engage and limit the movements of the lever H, substantially as set forth.

' 5. The combination, in repeating-watches,

with the toothed spring-barrel and hammers,

of a pivot or axis K, the toothed plates n m, the pins 01?, m and 0 and springs 01, 'm, and m and the regulating-lever P, substantially as set forth.

6. In repeating-watches, the combination, with the superposed toothed platesnm and the hammers, of the spring-barrel having hour rack-teeth F on the plane only of one toothed plate,and quarter-teeth F upon the planes of both toothed plates -n and m, suhstantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

BERNARD REBER.

Witnesses:

ALFRED CHATIN, G. THIEBAUD.