US1270706A - Clock. - Google Patents

Description

J. F. DUNN.

CLOCK. APPUCATIUN FILED AUG 1,1914.

1,270,706. PuTmMIJImv 2.3, 1918 SSHEETS SHEkT Z.

J. F DUNN.

CLOCK.

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1 rUFAH'Q'L JFDunn,

Patented June 25, 1918.

s SHEETS-SHEET a II -E asmall clock hand.

.rosnrn r. DUNN, or NEW YORK, 1v. Y.

CLOCK.

Specification of Letters Patent. I Patented June 25, 1918.

Application filed August 7, 1914. Serial No. 855,610.

To all whom it may concern:

Be it known that I, Josneil F. DUNN, a citizen. of the United States, residing at New York city, in. the county of New York and State of New York, have in vented neW and useful Improvements in Clocks, of which the following is a specification.

This invention. relates to improvements in clocks and more particularly to mechanism for predetermining the release of the alarm of alarm clocks.

It is the object of this invention to con struct the releasing mechanism of an alarm clock so that it will operate to release the alarm on an exact predetermined hour and minute. It is also an object of this invention to provide an addition to the usual alarm hour indicator on the alarm dial an alarm minute indicator which travels on the time,- dial correspondingly with the alarm hour indicator on its own dial and its position willindicate the exact minute the mechanism will release the alarm. In the usual alarm clock the hours on the alarm'dial are indicated in the same manner and correspond to the hour designating numerals upon the clock face but in setting the alarm the indicator travels counter clockwise upon its dial. It is also an object of this invention to construct the alarm minute indicator to travel clock-wise upon the clock dial so that there will be no confusion in setting the alarm.

The advantages of this invention are obvious. The usual alarm clock is provided with, a small alarm indicating dial over which travels, in a. counter clock-wise direction a single indicator in the form of This dial is divided into hours, quarters, and halves, so that the exact minute the alarm will be released is a matter of conjecture when set between the divisionson. the dial. By the construction contemplated in this invention the exact minuteof. release may be determined.

further advantage is the arrangement wherebythe alarm minute indicator travels clock-wise about the clock face over the hour and .minute numerals thereon, as confus on arises in calculating minutes in a counter clock-wise moving indicator.

1 g i-le the preferred formsof this invention are illustrated upon the accompanying sheets of drawing, yet it is to be understood that minor detail changes may be made without departing from the scope thereof.

Figure 1 is a view in front elevation of an alarm clock embodying this invention.

Fig. 2 is a diagrammatical view in front elevation illustrating the train of gears between the alarm hour and minute indicators.

Fig. 3 is an enlarged top plan view of the Fig. 2 with parts broken away and the clock mechanism omitted.

Fig. 4 is a. view in side elevation of Fig. 2, looking from the right.

Fig. 5 is a similar vow taken from the left.

Fig. 6 is a view clock illustrating a invention.

Fig. 7 is a similar view of another modification with parts broken away.

Fig. 8 is an enlarged view of the construction of Fig. 7 in side elevation looking from the right, with parts broken away and the clock mechanism omitted.

In all forms illustrated the usual clock mechanism is omitted as it forms no part of this invention.

In Figs. 1. to 6, inclusive, the clock face, hour and minute hands, alarm dial, alarm indicator and mechanism, as well the means of settin the clock hands and alarm indicators are 0 the usual construction. In

in front elevation ofda modified form of this this form an alarm minute indicator 1, preferably in the form of a finger or arm of different color from the hour and minute hands of the clock, is secured on the outer side of the clock face upon a sleeve 2 loosely mounted upon the hour hand sleeve, passing through the clock face and is provided with a pinion 3 at the innerside thereof. The disk 4 on the alarm hour indicator spindle 5 which carries the alarm release key 6 is provided with a gear wheel 7 which meshes with a pinion 8 on the arbor 9 of the usual transmission gear to the alarm releasing sleeve 10. This pinion 8 is provided with a gear wheel 11 meshing with the pinion 310i the alarm minute indicator, and the relation of the pinion and gears 3, 11, 8, and 7 is such that the alarm minute indicator 1 will make one complete revolution during the movement of the alarm indicator 12 through one hourdivision on the alarm dial 13.

As illustrated on Fig. 1 the alarm is set for three-forty'five and a continued move-- ment of the alarm setting mechanism will cause the alarm minute indicator to travel counter clock-Wise over the time dial over the minute divisions approaching the hour of three as'the alarm hour indicator passes over the corresponding divisions on the alarm dial and the motion of both indicators will continue in this manner until e desired hour and minute for the re ass of the'alarm has been reached.

In this form the numerals on both time and alarm dials are arranged in the same relation but, as both the alarm hour and minute indicators revolve in a counter clock- Wise direction, the reading on the alarm dial is in a reverse direction, for example, in Fig.1 the hour indicator is set at threeforty-five and passes from there through three-thirty and three-fifteen to three oclock and so on, and as the movement of the alarm minute hand is the same as the alarm hour hand the minutes are read directly upon the time dial, for instance, the position of the alarm minute indicator on ig. 1 indicates three-forty-fivc the same as if the time minute hand was in this position.

A spring 14 may be secured upon the inner side of the clock face to bear upon the alarmminute indicator pinion 3 to cause it to move evenly and retain its position when at rest.

In the form above described both the alarm hour and minute indicators move about the upon the alarm mechanism spindle.

time and alarm dials in a counter clock- Wise direction which may be confusing to one not familiar with this operation and manner of reading. A construction is illustlfated on Fig. 6 by which the alarm minute indicator 1 moves clock-wise about the clock dial-While the alarm indicator l2 moves counter clock-wise about the alarm dial in the usual manner. This is accomplished by constructing the alarm minute indicator pinion 3' to'mesh with the gear 7 carried y constructing thepinion 3 and gearwheel 7 in proper proportions the alarm minute indicator wil designate the exact minute upon the time dial after the hour designated upon the alarm dial that the alarm will b released. The osition of the alarm indicators on Fig. 6 indicates that the alarm will be released at three-forty-five. I Another manner of carrying out this invention; which contemplates essentially the providing of an alarm minute indicator movng in conjunction with the alarm hour indicatonis illustrated in Figs. 7 andS in which hothathe alarm indicators are arranged to travel upon the alarm dial and are read in the same manner as in the construction illustrated in Fig. 1. This isaccomplished by mounting a pinion 15 upon the key carrying disk of the alarm spindle 5 meshing with a gear Wheel 16 loosely mounted upon the arbor 9 of the alarm transmission train of gears. This ear wheel is provided with a pinion 17 w ich in turn meshes with a gear wheel 18 carried upon a sleeve 19 loosely mounted upon the alarm setting spindle 5". This sleeve 19 passes through the clock face and carries on the outer side the alarm hour indicator 12", the alarm minute indicator 1 being carried upon the spindle 5". The pinions and gear wheels 15, 16, 17, and 18 are so arranged and proportioned that upon the passage of the alarm hour indicator through one hour division on the alarm dial 13 the alarm minute indicator makes a complete revolution of the dial.

Upon this alarm dial the alarm indicators l. and 12 move in the same'direction, counter-clockwise.

What I claim is:

1. In a device of the character described including an alarm setting and releasing mechanism including an alarm transmission gearing and arbor having an alarm setting spindle carrying an hour indicator upon the a release key carrying disk upon the alarm transmission gearing, whereby the indicators are moved concurrently to cause the minute indicator to make a com plete revolution as the hour indicator moves through one hour division.

2. The combination of an alarm mechanism, a time mechanism having time indicating devices and means for releasing said alarm mechanism, means for setting said alarm mechanism relative to the time mechanism, and indicating" devices which show the setting of'the alarmmechanism, comprising an hour indicator, a separate minute indicator, and gearing connecting said hour and minute'indicators whereby they are moved together at different speeds res )QCtlVBly in the pro ortion of one to twelve i l the setting of sai alarm mechanism{ 3. Theicombinatiow of an alarm mechanism, a time mechanism having hour and minute hands alarm mechanism, means for setting said alarm mechanism"relative to the time mechanism,'and indicating devices which show the setting of the alarm mec anism, comprising an alarm hour ban a se arate alarm minute hand, and gearing d rectly connecting said alarm hour and minute and means for releasing said halide to move t rgether at the different causing the two tonlove concurrently to inspeeds of one ito \vnlve respectively in the (licate the hour and minute at whlch the setting of the alarm mechanism. alarm will be released.

4. In an alarm clock, an alarm setting JOSEPH F. DUNN. 5 and releasing mechanism, an alarm hour iu- W itnesses:

dicator, an alarm minute indicator, and A M. HAYES,

gearing connecting the said indicators for OSCAR M. BATE.

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