US359983A

US359983A - eunqe

Info

Publication number: US359983A
Authority: US
Publication date: 1887-03-22
Anticipated expiration: 1904-03-22

Description

(No Model.) 2 SheetsSheet 1.

A. RUNGE. w ALARM CLOCK. No. 859,983. Patented Mar. 22,1887.

N. PETERS. rnmmnu n m WashingQon. o. c.

.(No Model.) 2 Sheets-Sheet 2.

' A. RUNGE.

ALARM CLOCK.

No. 359,983. Patented Mar. 22, 1887.

' UNITED STATES PATENT OFFICE.

ARTHUR BUNGE, OF DRESDEN, SAXONY, GERMANY, ASSIGNOR TO OTTO HAHN, OF SAME PLACE.

ALARM-CLOCK.

SPECIFICATION forming part of Letters Patent No. 359,983, dated March 22, 1887.

Application filed April 10, 1886. Serial No. 198,416. (No model.)

To all whom it may concern:

Be it known that I, ARTHUR RUNGE, of Dresden, Saxony, in the Empire of Germany, have invented av certain new and useful Improvementin Repeating-Alarms, of which the following is a specification.

Many efforts have been made to provide clocks and watches with alarm mechanism which will give the required alarm or awakening sound at two distinct and considerablyseparated periods of time. I have devised means for attaining this very perfectly. I employ two stop-levers controlling the alarm mechanism, each operated by the time-works of the clock. The period at which the first alarmis-to operate may be adjusted in the ordinary manner. The succeeding sound will automatically follow it after the prescribed interval of time. Oneleverthat which determines the first sound-holds the alarm'inechanism until the prescribed period arrives. Then it liberates the quick-working mechanism,and the sound is actively produced until the alarm mechanism has operated to a certain extent. It is then arrested by the second lever and remains silent until the time mechanism of the clock, having progressed the prescribed distance, further acts on this second lever and again liberates the alarm mechan ism and allows it to complete its action.

The following is a description of what I consider the best means of carrying out the invention.

The accompanying drawings form a part of this specification.

Figure 1 is a frontview, and Fig. 2 a side view, of so much of a weight-moved clock as is necessary to explain the application of my invent-ion thereto. Fig. 3 is a plan view of a portion. The remaining figures represent a modification of theinvention applied to watch mechanism. Fig. 4 is a'front view, and Fig. 5a side view. Figs.[6 and 7 represent a detail detached. Fig. 6 is a side view, and Fig. 7 a back or rear view.

Similar letters of reference indicate corresponding. parts in all the figures.

Referring to Figs. 1 and 2, the stop-lever A, turning on a fixed pivot, a, is urged downward by an arm, J, fixed on the shaft J, another arm, J, of which extends nearly horizontally and is subject to the force of aspring, I-,whieh urges it gently downward. This lever J J" performs important functions, one of which is effected by the upper arm, J ,which holds the hammer until the period arrives for the first alarm. It holds it by means of the upturned end of J standing in the path of the hammerlever W so that the latter cannot vibrate. The lever A rests on a slowly-turning cam, M, which fits with sufficient tightness on the hour-tube N to be carried with it; but it may be adjusted thereon, the adjustment being facilitated by an index or dial on the front. It is provided with a deep notch having an offset, which divides it into two depths or notches, m m", the offset m between being of such breadth as to give the required period of silence between the two alarms.

X is the hell, supported in the ordinary manner. W' is the hammer, which performs the usual function of striking repeated blows against the interior of the bell. WV is the hammer-arm. \V is the shaft, supported in fixed bearings A A and having two bent port-ions, W W", adapted to receive the action of the pins V, carried on the revolving wheel V, which receives motion from the gear-wheel U, actuated by a weight (not shown) depending from the chain T, wound on the Windlass U. The back face of the wheel V carries a pin, V which serves as a stop under certain conditions.

\Vhen the proper time arrives, the rotation of the cam M allows the lever A to drop into m and come to rest on the offset 111*. This movement allows the lever J J J 2 to drop sufficiently to liberate the hammer, which now commences its vibrations under the action of the weighted chain T and connecting mechanism.

B is a lever pivoted on the lever A at the point I), and carrying a rigid arm, B. The upper end of this arm carries a notch, b, which at the proper time engages with the pin V and arrests the alarm. The spring force transmitted to the lever A and its connections from the arm J is applied through a notch, N, in the arm B. This is sufficiently to the left of the center I) to gently raise the lever B and hold it in the position shown, while the force thus received presses downward on the lever A.

E is a wheel slowly turned by a small pinion, F on the shaft F, and carrying a pin, E. When by the action of the alarm mechanism this wheel has turned to a sufficient extent, it acts by the pin E upon the lower end of the lever B, turning it upon the center I). This movement causes the arm B to move to the right to a sufficient extent to present its notch 12 in the path of the pin V which on the next revolution engages in said notch and stops the alarm. The alarm mechanism now remains silent until the slow rotation of the cam M allows the lever A to make the second drop to the bottom of the notch on. This moves the center I), and consequently the entire lever B, to a sufficient extent to liberate the pin V again, and the alarm now recommences and finishes its work.

The arresting of the alarm mechanism'after the second alarm may be effected by the ordinary Geneva stop, (not shown,) or by any other suitable means. If preferred, the sound may be allowed to continue until the alarmweight has run down.

During the second alarm the wheel E performs such a portion of a revolution that the pin E is brought again into the position indicated in Fig. 1, and as the rotation of the cam M soon again restores the lever A to its original position the alarm mechanism, being again wound up, is ready to serve as before.

Figs. 4, 5, 6, and 7 show a modification applied to watches. Any alarm mechanism adapted to watch-work may be employed. The same letters of reference indicate like parts in these figures-4i to 7. It will be understood that U represents the rapidly-revolving wheel driven by gearing from a spring inclosed in a drum, U, and wound up by the application of a suitable key to the shaft U The levers A and B in these figures4 to 7 correspond in functions to the levers similarly marked in Figs. 1 and 2; but their construction and arrangement are somewhat modified. The lever B is pivoted to A at b. Both A and B are bent at right angles at their lower ends, as indicated by A B". Until the period arrives for the commencement of the first alarm, the alarm mechanism is held by the bent portion A of thelever A engaging with aportion, G, of the quiolemoving mechanism.

M is an adjustable tube, which, being set by a dial on the front face, determines the period of the commencement of the first alarm. This tube may be in all respects similar to the corresponding portions of ordinary alarm mechanism, except that the back edge is provided with a double notch, m of, with an offset, 122*, between them. The lever A constitutes a spring, which presses forward toward the front of the clock, and also similarly urges the hourwheel D, which is feathered on the hour-tube (I, so that it is compelled to turn therewith, but is free to slide longitudinally thereon. The front face of the hour-wheel D has a radial wing, D. \Vhen by the slow rotation of the hour-wheel D the wing D is presented to the first recess, m, of the alarm'tube M, this wheel and also the lever A move forward to the extent allowed by the first notch, m. This movement carries the bent arm A out of engagement with the alarm mechanism, which now commences to act in the ordinary manner.

The shaft U carries awheel, I, with a tooth, P, which at each revolution engages in a notch in a wheel, E, and causes it to turn a sixth or some other desired portion of a revolution. After this wheel has by the step-by-step motion thus induced performed a sufficient portion of a revolution, the pin E, carried on this wheel E, acts on the upper end of the lever B and turns it to a suificient extent to present the lower end, B of the lever B in the path of the quick-moving part G, which is on the next revolution arrested by its contact with B This suspends the action of the alarm. The alarm mechanism now remains silent until the slow rotation of the hour-wheel D pre sents the wing D to the second notch, m Now the spring (not represented) carries the wheel D and its connections again forward toward the front of the clock. This movement is sufficient to detach the arm B from the alarm mechanism and allow the action of the latter to again commence and be completed.

Other modifications may be made in the forms and proportions without departing from the principle or sacrificing the advantages of theinvention. The duration of the period between the two alarms may be varied by filing or otherwise changing the relations of the notches m of.

By providing three or more recesses or notches and three. or more levers, the period of alarming can be subdivided into three or more separate and distinct alarms,if preferred.

I claim as my invention- In a clock or watch, the two stoplevers A B, in combination with an alarm mechanism having a wheel, E, and pin E, and with a device, M, having two notches, m m", arranged for joint operation substantially as herein specified.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

ARTHUR RUN GE.

Vitnesses:

PAUL DRUOKMULLER, WILHELM WIEsENnii'r'rnn.