Datei:US392729 Henchoz.jpg: Unterschied zwischen den Versionen

To all whom it may concern:
Be it known that we, Auguste Henchoz and Fritz Henchoz, both residing at Locle, in Switzerland, have invented a new and useful Improvement in Stop-Watches, of which the following is a speeification.
This Invention consists in a stop mechanism of a very cheap construction, in which the hand of the stop mechanism is directly acted upon by a wheel fixed to the axis of the seconds-wheel of the train without any intertmediate transmission.
The accompanying drawings show a stop mechanism constructed according to this invention.
Figure 1 is a top view of the general arrangement of the stop mechanism; and Fig. 2 shows, on an exaggerated scale, the section of the pinion of the first wheel (center wheel) of the works, with the axis of the stop-hand traversing the same.
The push-piece which acts upon the camratchet G and the corresponding spring are not shown in the drawings, being of the usual construction. Upon the axis A of the secondswheel there is fixed a fine toothed wheel B, which turns continuously with the axis A. The arbor of the pinion C and center or first wheel is hollow, and within it is the axis D, the pivot d of wich passes through a little tube or plug c, inserted into the tubular arbor C, and this axis D carries the hand E of the stop mechanism. The axis D also carries a fine-toothed pinion H and an eccentric or heart-cam I, the latter being acted upon by a lever J,when the hand E is to be returned to its normal position of rest. This lever J is acted upon, as usual, by the cam-ratchet G. The other end of the axis D to the hand is provided with a pivot d', turning in the oscillating bridge F. This latter oscillates about a screw f and has a projection F', which bears alternately upon a cam or in a notch of the cam-ratchet G. According to the position assumed by the bridge F the pinion H is brought into or thrown out of gear with the wheel B - that is to say, that the stop-hand E is put into action or stopped by slightly moving the oscillating bridge F.

A. spring, M, presses the bridge F in the dipinion 11 to be put into gear with the whee B as soon as the projeetion F' falls. into one o the notches of the cam G. -A frietion - spring, K, bears eontinuallj .against the axis D and acts like a brake whei tbe pinion H is out of gear. Fig. 2 shows th~ axis D in position for the hand to be rotated We are aware that in stop-watches the axi: D of the stop-hand has passed through tb tubular arbor of the center or first wheel auf has been fitted so as to oscillate within saic arbor, and we are aware that rotation bw been given to the arbor of the stop-hand by wheel upon the arbor of the third wheel act ing through an intermediate wheel or pinion, In our irnprovement the intermediate gear wheel is dispensed with, and the axis D i; supported by and moves wich the bridge E, and Said bridge becomes a lever that swing upon the pivot f, and it is not necessary tc slot or elongate the hole for the pivot of thE axis D, as has heretofore been usual whenn thE axis was tnoved laterally to conneet or diseonnect the gear-wheels driving the independent seconds-hand. We claim as our invention- 1. The combination,with the center pinion, C, having a tubular arbor, of the wheel B upor the arbor of the seconds-wheel of the watchmovenient, the axis D, passing through thE tubular arbor, the hand ?., pinion II, and heart-cam I upon the axis D, and the leverbridge F, pivoted at f and having a hole foi the pivot of the axis D, and the cam ratchetwheel G, for giving motion to the lever-bridgE and moving the axis and pinion laterally foi stopping and starting the seconds-hand, substantially as specified. 2. In a stop-watch, the combination, with the wheel B and cam ratchet-wheel G, of the lever-bridge F, the axis D, having its pivot in a hole in the lever-bridge, the heart-cam 1, pinion H, and hand E clpon the axis D, and a spring acting to press the bridge and pinion H toward the wheel B, substantially as set forth. AUGUSTE HENCHOZ. FRITZ H a °iN HOZ.

An alle, die es angeht:
Es wird bekannt gemacht, dass wir, Auguste Henchoz und Fritz Henchoz, beide wohnhaft in Locle, in der Schweiz, eine neue und nützliche Verbesserung an Stop-Uhren erfunden haben, deren Eigenschaften im Folgenden beschrieben ist.
Diese Erfindung besteht aus einem Stoppmechanismus in sehr preiswerter Ausführung, bei der der Zeiger des Stoppmechanismus direkt auf einem Rad sitzt, welches durch das, auf der Achse des Sekunden-Rades des Werkes angebrachte Sekundenübertragungsrad, direkt (ohne Zwischenräder) angetrieben wird.
Die beigefügten Zeichnungen zeigen einen Stoppmechanismus, gemäß dieser Erfindung.