US592032A - Rodman wanamaker - Google Patents

Description

(No Model.)

R .WANAMAKER. REP-EATING WATCH.

1%. 592,032. Patented 001;. 19, 1897.

by Od m mg v M PATENT @rrrca RODMAN W'ANAMAKER, OF PARIS, FRANCE.

REPEATING WATCH.

SPECIFICATION forming part of Letters Patent No. 592,032, dated October 19, 1897.

Application filed January 28,1897. Serial No. 621,007. (No model.)

To all whom it may concern/.-

Be it known that I, RODMAN WANAMAKER, merchant, a citizen of the United States, residing at Paris, France, have invented certain new and useful Improvements in Repeating \Vatches, of which the following is a specification.

The invention consists of an improved device for acting upon the sounding mechanism of repeating watches by depressing the crown of the watch and for locking and unlocking the repeating rack of the same. To that effeet I fix the winding-up crown of the watch to a sleeve, having a square axial hole, sliding upon a square portion of the stem and engaging a rocking lever, provided within the watchcase and bearing upon a pin pivotally connected to a bell-crank leverpivoted on the face of the watch-plate. The said bell-crank lever has one of its arms projecting out of the circumference of the plate andpivotally connected to the one end of a curved rod, embracing part of the circumference of the plate, the said curved rod having its other end pivotally connected to the one end of a lever which is disposed in approximately radial position with respect to the watch-plate and which has its other end pivoted to the said plate, the purpose of the whole being to transmit to a suitable pin or projection of the usual rack of the repeating mechanism, which cannot be placed next the stem or crown, the pressure of the said stem or crown.

The invention further consists of an improved loeking device of the repeating mechanism.

Now with a view of having the invention the better understood, I will proceed to describe the same with reference to the accompanying drawings, in which.

Figure l is a plan view of the repeating mechanism at rest, and Fig. 2 a similar View of the repeating mechanism in the position it assumes when the crown has just been depressed.

In the two figures similar letters of refer ence refer to the same parts.

A is the stem of the watch, having on its square portion a sliding sleeve A, to which is fixed the crown A The lower end of the sleeve A bears upon a rocking lever B, lodged in the watchcase-center B and pivoted to the same at Z). The free end of said rocking lever B bears upon a pin C, which engages a suitable radial or approximately radial hole 6 of the plateD and the inner end of which is pivotally connected to the arm E of a bell-crank lever E E the fulcrum e of which is fixed to the plate D. The arm E of the said bell-crank lever projects through the border d of plate D and bears externally, pivotally fixed to it, the one end of a curved rod F embracing a portion of the circumference of plate D and having its other end pivotally connected to a lever G, which engages a suitable hole of the rim (1 of plate D and is connected to the face of said plate D by means of a pivot-screw g. The said screw 9 is at the same time the pivot of the usual rack J, acting upon a suitable pinion fixed to the axis of the repeating barrel placed on the opposite face of plate D. The stroke of the repeating rack J is limited by means of a screw j, fixed to the plate D and playing in a curved slot j of said rack J, and the said rack J bears a screw or projection j intended to be acted upon by the lever G. There is further provided a locking device K, formed of a lever having a springshaped portion 7a and being fixed to the plate D by means of a screw 70. The free end of the looking-lever K engages a suitable projection or nose Z of the usual repeating rack L when the repeating mainspring has caused the said rack L to return to its rest position shown in Fig. 1, the action of the said repeatin g mainspring being stronger than the strain of the spring M, which tends to throw the repeating rack L into the position shown in Fig. 2, in which its projection Z bears upon the usual snail. (Not shown.) This throwing action of the spring M upon the rack L takes place as soon as the projection 7' fixed to the rack J, engages the edge 70 of the locking-lever K, as shown in Fig. 2, the said edge 10 being curved eccentrically with regard to the fulcrum g of the rack J, the repeating rack L being at the same time made independent of the mainspring-axis by any one of the well-known unlocking devices used in repeating watches.

The described mechanism works in the following manner: The crown A being depressed by the finger it causes the bell-crank lever E E to he rocked from the position shown in Fig. 1 to that of Fig. 2. The said hell-crank lever E i being connected to the radial lever G by the curved rod i the latter is also rocked and it Withdraws thereby the screwj fixed to the rack J, which is rocked on its pivot g, and the mainspringg oi the sounding mechanism is Wound up by means of the usual gearings, which do not belong to the invention claimed. When the rack .l' arrives at the end of its stroke, the projection 3' of the same lifts the locking-lever it out of engagement from the nose Z ot. the repeating rack L, which is then thrown by the spring M against the usual snail, limiting; its stroke so as to sound the hours and quarters or minutes in the WOll-lUl0Wl1 manner.

Having thus fully described my invention, I claim 1. In repeating watches, the combination of the crown A, havinga sleeve A, engaged on a square portion of the stem A, "with a rocking lever 13, acting upon a pin ti, pivotally connected to the one arm of a bell-crank lever E E the rocking movements of which are transmitted by means ol: an external curved rod i to a lever t1, pivoted to the pivot g of the usual rack "T, and hearing against a screw or projection j fixed to the said rack J, causing the said raclc J to he rocked with the said lever El, when the pin t) is depressed by the action of the crown A substantially, as shown and described.

2. In repeating Wateheshaving a rank J, to act upon the mainsounding-spring and a repeating rack ill), to act upon the repeating hammers, the COlUlJllltl'tlOil ol. a projection or nose I, oi the repeating rack l with a lockinglever K engaging said projection or nose/ when the repeating mechanism is at rest, rack 1 bearing a screw or projection tended to act upon the eccentrically-eurred edge 75 of said loelai ng'dever Ii, unlocking the same when the raelc J is rocked, substantially as shown and described.

In testimony whereof I have signed my name to this specification in the presence ot' two subscribing Witnesses.

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