US2073275A - Clock with automatic calendar - Google Patents

Description

March 9, 1937. I B ELBERG 2,073,275

CLOCK WITH AUTOMATIC CALENDAR Filed Dec. 15, 1932 5 Sheets-Sheet l Fig.1

- FRIDAY Fig.2 Fig.3

CAN-

QQQOOQQUXQMN CAN- March 9, 1937. B. ELBERG I 2,073,275

CLOCK WITH AUTOMATIC CALENDAR Filed Dec. "15, .1932 5 Sheets-Sheet 2 Fig.4 2s

B. ELBERG CLOCK WITH AUTOMATIC CALENDAR March 9, 193 7.

5 Sheets-Sheet 3 Filed Dec. 15, ""1952 wEDNE p 5 JANUARY March 9, 1937. 3 ELBERG 2,073,275

CLOCK WITH AUTOMATIC CALENDAR Filed Dec. 15, 1932 5 Sheets-Sheet! Fig/l0 Fig.

March 9, 1937. v ELBER-G 2,073,275

CLOCK WITH AUTOMATIC CALENDAR Patented Mar. 9, 1937 UNITED STATES PATENT OFFICE Application December 15, 1932, Serial No. 647,384

In France November 28, 1932 i 19 Claims.

The present invention relates to clocks with automatic calendars.

One object of the present invention is to provide a clock with an automatic calendar, includ- 5 ing a calendar-mechanism actuated by the movement of the clock for automatic indication of the date, of the month and, if desirable, of the day of the week, this mechanism being combined with a mechanism of manual change of the des- 10 ignation of the month and of manual adjustment of the date. By this arrangement is realized an improved visibility, which was not attained hitherto, the manual adjustment of the date being preferably effected the last day of each month 15 in the same time as the manual change of the month.

The mechanism of the automatic calendar according to the present invention is characterized by an automaticity of movement during subse- 20 quent periods of 31 days maximum, each monthly adjustment assuring the calendar automaticity for all the duration of the following month, so that during the period of a civil year, 12 manual adjustments are required.

25 Another object of the present invention is to provide a mechanism of automatic indication of the date by means of two roller-indicators, one forming a roller of units and the other forming a roller of tens, the essential feature of the mech- 30 anism consisting in a cycle of continuous counting, from to 39. This mechanism is combined with a device of manual monthly adjustment, by means of which, according to the month of the year, the figures from 1 to 31 are automatically actuated by the movement of the clock to indicate automatically the date.

Another object of the present invention is to provide a mechanism for the automatic indication of the date, consisting of a roller of units for the 40 figures l, 2, 3, 4, 5, 6, 7, 8, 9 and a roller of tens, consisting in 8 divisions having two series of figures 1, 2, 3 and two free spots, the roller of units being rigidly secured, while the roller of the tens is loosely mounted on a common shaft.

45 A further object of the present invention is to provide two rollers for the indication of the date, the said rollers being closely mounted on a com mon shaft, one relative to the other without interposition of any intermediate control member b ;g tween these rollers. This arrangement enables to present both figures of the date without any space therebetween before a single aperture for reading.

Another object of the present invention is to 55 provide a mechanism for automatic indication of the day of the week, provided with a roller bearing the seven designations of the days of the week.

Another object of the present invention is to provide a mechanism for automatic indication of the date and of the day of the week, consisting in a friction-clutch to enable an immediate adjustment of the date and of the day of the week in both directions without opposing any resistance to the movement of the clock during 10 the adjustment.

Another object of the present invention is to provide a progressive rotation of the rollers for the indication of the date and, if desirable, of the day of the week, during the automatic variation of the respective calendar-designations, the said rotation being eifected with a constant speed.

Further objects and features of my invention, including desirable particular constructions and combinations of parts will be apparent from the following detailed description taken in connection with the disclosure of the drawings, in which:

Fig. 1 is a general aspect of a clock with an automatic calendar, consisting in a roller for the designation of the days of the week, another roller for the indication of the units of the date and in a third roller for the indication of the tens, all these three rollers being activated by the clock movement while another manually operated indicator is provided for the indication of the months.

Fig. 2 shows the arrangement of the figures on the rollers for the designation of the date, the said figure showing the evolutions of the cylindrical peripheries.

On the roller for the indication of the tens there are provided 8 divisions, having 6 figures, two divisions being left free.

Fig. 3 is a view in section on the line 3--3 of Fig. 1 showing the arrangement of the automatic actuation mechanism and the disposition of the roller-indicators before the apertures for reading provided in the dial.

Fig. 4 is a view in section on line 4-4 of Fig. 3, showing the mechanism for actuation of the two rollers for the indication of the date and of the roller for the indication of the day of the week.

Fig. 5 is a view showing separately the members of the automatic mechanism of actuation.

Fig. 6 shows a clock with automatic calendar, consisting in a roller for the indication of the units of the date,- in another roller for the indication of the tens of the date, this mechanism being combined with a slide comprising movable leaves bearing the designation of the months, the

manual change of the monthly leaf preferably taking place simultaneously with the manual monthly adjustment of the date.

Fig. 7 is a view of the movable slide of Fig. 6 sliding in a guide secured behind an aperture provided in the dial.

Fig. 8 shows a mechanism for the automatic indication of the date comprising a roller for the units and another roller for the indication of the months, the indication of the months being affected by means of a horizontal strip.

Fig. 9 shows an embodiment of the present invention in which all the rollers are mounted on a common shaft.

Fig. 10 shows another arrangement of the figures on the roller for the indication of the date, comprising two series of fig s 3 p d by an arrow indicating the direction of adjustment.

Fig. 11 shows an automatic mechanism for the indication of the date, comprising a roller for the indication of the units of the date, another adjacent roller indicating the tens of the date, the said rollers being actuated by the movement of the clock, while the indication of the months is manually effected by means of a toothed wheel bearing the designations of the months, this toothed wheel being preferably adjusted each month in the same time when is effected the adjustment of the month.

Fig, 12 shows a mechanism for the automatic indication of the date by means of a toothed wheel bearing the dates 1 to 31 and actuated by the movement of the clock which effects every 24 hours a rotation of the toothed Wheel of l/31 of revolution, the designation of the month being effected by means of movable leaves sliding in a guide.

Fig. 13 shows a section of an embodiment similar to that of Fig. 9 in which the indicating rollers are mounted on a common shaft.

With reference to Fig. l the mechanism of the automatic calendar is arranged between two plates l and 2 and is actuated by a clock-mechanism 3.

A driving disk 4 (Fig. 4) integrally formed with a toothed wheel 5 and loosely mounted on the shaft 6 bearing the rollers for the indication of the date is driven by the clock mechanism at a constant speed one revolution being effected in 24 hours.

The disk 4 has a slot forming a single hollow tooth with two cylindrical pins fixed on the said disk and situated on both sides of the entrance of the slot.

A suitable toothed wheel connection is provided, as shown in detail on Fig. 4, to actuate the disk 4. The said connection comprises: two bevel wheels 18 meshing with the tooth-wheel 9 driving the hands of the clock, and a transmis sion shaft l solid with the bevel wheel 8.

This transmission shaft ID is solid with a pinion ll, meshing with the toothed wheel solid with the washer 4.

A pinion I2 is provided with 8 teeth, four of which are shorter than the other four, each short tooth being arranged between two long teeth of the said pinion. This pimon is loosely mounted on the shaft l3, which is parallel to the shaft 6.

The disk 4 engaged with the pinion 12 on a depth left free by a short tooth of the said pinion can rotate freely during the whole day between two long teeth of this pinion. The arrangement of these actuation members is shown on Fig. 5.

On a common plane of these 8 teeth the pinion meshes with a wheel [4 provided with twenty teeth and mounted on shaft 6 which is rigidly connected with the roller l5 for the indication of the units of the date, the said wheel I4 being connected with the said shaft by means of a spring clutch I6.

Every 24 hours, preferably after midnight, the disk 4 produces a rotation of a quarter of a revolution of the pinion l2 and the wheel [4 provided with twenty teeth and meshing with the latter effects consequently a rotation of: 8/20=% of revolution and when this rotation is finished the pinion and the wheel stop again for a day in their position.

During this rotation the roller 15 for the indication of the units of the date which is constantly engaged with the wheel 14 by means of the spring clutch [6, effects likewise a rotation of of revolution and is maintained immovable so as to bring the following respective figure of the units of the date before the aperture for reading.

By means of this mechanism the shaft 6 effects a complete revolution in days. At the end of the days corresponding to the 9th, 19th and 29th of each month a second disk I! identical to the disk 4 and secured on the shaft 6 effects a rotation of a quarter of revolution of a second pinion i8, identical with the pinion l2 and rotating freely on the shaft 13.

This second pinion I8 is solid with a pinion l9, meshing with a toothed wheel 20 solid with the roller of the tens 2|, this roller exerting consequently during this rotation A of revolution and becomes immovable at the end of the days above referred to, indicating the following figure of tens before the aperture for reading and the figure 0 on the roller of units so as to automatically form the designation of 10, 20, and 30. The roller of the tens 2|, Fig. 2, can be divided into 8 divisions comprising two serie of figures 1, 2, 3, two divisions being let free. Said roller effects of revolution at the change of the tens of the date.

The roller of the tens 2!, as shown in Fig. 10, can also comprise ten divisions with two series of figures l, 2, 3, two free spots and two arrows to indicate the direction of adjustment. Said roller effects of revolution to form the designation of 10, 20, and 30.

At the end of the day 30, for the months having 31 days, the roller for the indication of the units of the date is brought to immobility before the aperture for reading, the figure 1 being before the figure 3 of the roller of the tens so as to form automatically the indication of the date 31.

At the end of each month, preferably in the evening, a monthly adjustment of the date is effected manually by a single complete revolution of the adjustment-button 22 solid with the shaft, on which are mounted the rollers, this adjustment bringing the figure 0 of the units and the free place of the tens before the aperture for reading.

After every monthly adjustment the mechanism indicates automatically the date 1 and likewise all the following dates of the month.

It will be seen from the foregoing, that this mechanism of automatic indication of the date comprises a continuous and renewable cycle of counting from 1 till 39 in combination with a device of manual adjustment by means of which according to the month of the year only the figures from 1 to 31 are activated by the clock movement to automatically indicate the date.

A roller 23, bearing the seven designations of the days of the week is mounted on a shaft 24, arranged in parallel to the shaft supporting the rollers of the date.

A disk with one hollow tooth 25, identical to the disk 4 and rotating freely on the shaft 24 is driven by the movement of the clock, with a constant speed of one revolution in 24 hours, this rotation being effected by the pinion 26, mounted on the transmission shaft 8 and meshing with a toothed wheel 21, solid with the disk 25.

Every 24 hours, preferably after midnight, and simultaneously with the change of the date, the disk 25 effects a rotation for a quarter of a revolution of the pinion 28, solid with a pinion 29, which meshes in the rotation 4:7 with a toothed wheel'30, mounted on the shaft 24 and connected with the latter by means of a springclutch 3!.

During this rotation the roller 23 for the indication of the days of the week efiects a rotation of /'z= /-z of revolution" so as to provide the automatic indication of the day of the week.

During the period of automatic simultaneous change of the date and of the designation of the day each disk with a hollow tooth, forming a part of the control-mechanism, effects a rotation of one tenth of a revolution, and rotating with a speed of one revolution in 24 hours, the period of automatic change is consequently 2.4 hours, i. e. 2 hours and 24 minutes.

It results from the foregoing, that the automatic change of the date and of the designation of the day is effected progressively at a constant speed by means of a series of free gears not requiring from the clock mechanism any supplementary force so as to permit the utilization of the existing clock movement.

The initial adjustment of the roller for the indication of the days of the week is effected by means of an adjustment button 32 solid with the shaft 24.

It results from the foregoing, that the springclutch devices forming a part of the mechanism for the automatic control of the date and of the mechanism for the automatic indication of the days of the Week provide an independent adjustment of the date and of the designation of the day. This adjustment can be efiected in two directions without opposing any resistance to the working of the clock.

The mechanism for automatic indication of the date and of the day of the week can be combined with a roller for the indication of the months 33 (Figure 1), rigidly secured on the shaft 34, this roller being manually adjusted by means of an adjustment button 35, preferably at the same time as the monthly adjustment of the date.

On Fig. 9 a second pinion I 8, provided with eight teeth meshes directly with a wheel 39 provided with twenty teeth and solid with the roller 2i for indication of the tens of the date, this roller effecting during the change of the figure of the tens a rotation of th of revolution and comprises an arrangement of figures as shown on Fig. 10. I

On the Fig. 9 the roller 23 for the indication of the days of the week is activated by a toothed wheel 46, connected by means of a spring-clutch M with the shaft 6 of theroller for the indication of the units, this wheel meshing in a ratio 10:? by means of the intermediary wheels 42 and 43 with a wheel 44 connected by a spring-clutch with the roller for the indication of the days of the week.

The adjustment of the roller 33 for the indication of the months is efiected by means of a button 35 solid with a pinion 45 meshing with a toothed member solid with this roller indicator.

A supplementary disk with one hollow tooth and a supplementary pinion with eight teeth according to Fig. 5 can, if desirable, be added to the control-mechanism, this supplementary disk rotating ten times quicker to increase in ten times the speed of the changing of the date.

The rollers for the indication of the date can also be shaped as plane wheels.

The toothed wheel for the indication of the date 46, which eifects every 24 hours a rotation of 1/31 of revolution, as shown on Fig. 12, can be combined with the devices of manual change of the month according to Figures 1, 9, and 11.

The devices of manual change of the month according to Figures 6, 7, 8 have the advantage to bring together the aperture for reading of the date and of the designation of the month so as to increase the visibility in a limited space.

In the embodiment of the Figure 13 a clearance is provided between the rollers for the indication of the date 15-21 on the one hand, and the day roller 23 and month roller 33 on the other hand, so that the toothed wheels forming part of the transmission actuated by the clock mechanism are arranged between said rollers. Besides the adjustment members 22, 22 32, and 35 solid with the rollers are formed as milled wheels. The clutch spring means formed as coiled springs I6, I6 and 4| are associated with loosely mounted pinions I9, I9 and 29 so that by manually rotating a milled wheel to adjust an indicating roller the respective pinion connected with said roller rotates against the resistance of the spring clutch associated with this pinion.

I claim:

1. In a clock with automatic calendar a member for the indication of the units of the date rigidly secured on a shaft and actuated by a disk with a hollow tooth driven by the clock mechanism to make one revolution in 24 hours, a pinion having eight teeth meshing with the said disk, a wheel provided with 20 teeth meshing with the said pinion and adapted to be driven with a constant speed to effect the change of the date; a spring clutch connecting the said toothed wheel with the said member for indication of the units of the date, a member for the indication of the tens'of the date loosely mounted on said shaft and actuated by means of another disk with a hollow tooth rigidly secured on said shaft, and another pinion having eight teeth meshing with said disk named in second place and drivingly connected to the member for the indication of the tens of the date.

2. In a clock with automatic calendar a member for the indication of the units of the date rigidly secured on a shaft and actuated by a disk with a hollow tooth driven by the clock mecha nism to make one revolution in 24 hours, a toothed wheel drivingly connected to said disk to make each 24 hours with a constant speed of revolu tion, a spring clutch connecting the said toothed wheel with the member for the indication of the units of the date, an adjustment button solid with said shaft, a member for the indication of the tens of the date loosely mounted on the said shaft and actuated by means of another disk with a hollow tooth rigidly secured on the said shaft, and another pinion meshing with said disk named in second place and drivingly connected to the member for the indication of the tens of the date.

3. In a clock with automatic calendar a roller for the indication of the units of the date, another roller for the indication of the tens of the date, and a transmission actuated by the clock mechanism for effecting with constant speed a progressive change of the date indicated by said rollers.

4. In a clock with automatic calendar a roller for the indication of the units of the date, another roller for the indication of the tens of the date, a transmission actuated by the clock mechanism for effecting with constant speed a progressive change of the date indicated by said rollers, and spring clutch means in said transmission for enabling the adjustment of said rollers.

5. In a clock with automatic calendar according to claim 4 a roller for the indication of the day of the week actuated by a disk with a hollow tooth driven by the clock mechanism to make one revolution in 24 hours and a toothed wheel drivingly connected to said disk to effect each 24 hours with a constant speed /7 of revolution.

6. In a clock with automatic calendar one member for the indication of the units of the date, another member for the indication of the tens of the date, another member for the indication of the days of the week, a transmission actuated by the clock mechanism for automatic control of said members, spring means enabling the adjustment of said members, and a manually adjustable member for the indication of the month, all said members being mounted on a common shaft.

7. In a mechanism of the class described the combination of a member for the indication of the units of the date rigidly secured on a shaft and actuated by a disk having meshing means embodied therein and driven by the clock mechanism to make one revolution in 24 hours, a pinion having long and short teeth adapted to be actuated by said disk to be driven with a constant speed to effect the change of the date, spring clutch means in the transmission means actuating the said member for enabling the adjustment of the date indications, a member for the indication of the tens of the date loosely mounted on said shaft and actuated by means of another disk having meshing means embodied therein and rigidly secured on said shaft, and another pinion having long and short teeth adapted to mesh with said disk named in second place and drivingly connected to the member for the indication of the tens of the date.

8. In a mechanism of the class described the combination of a disk having meshing means embodied therein and driven by the clock mechanism, a driving member cooperaing with said disk and drivingly connected with a member for the indication of the units of the date rigidly secured on a shaft to normally keep said member immovable and to rotate the latter each 24 hours of revolution, a member for the indication of the tens of the date loosely mounted on said shaft and operatively connected with the member for the indication of the units of the date through the intermediary of a disk having meshing means embodied therein, rigidly secured on said shaft, and cooperating with a driving membersecured on a shaft parallel with the first named shaft to normally keep immovable said member for indication of the tens of the date and rotate the latter each 10 days, and spring clutch means in the transmission means actuating the said date indicatingmembers for enabling the adjustment of the date.

9. In a clock with automatic calendar a member for the indication of the units of the date rigidly secured on a shaft and actuated by a disk having meshing means embodied therein, a driving member operativelyconnected with said disk to make each 24 hours with a constant speed of revolution, a member for the indication of the tens of the date loosely mounted on the said shaft and actuated by means of another disk having meshing means embodied therein and rigidly secured on the said shaft, another driving member meshing with the said disk named in second place and drivingly connected with the member for the indication of the tens of the date, and spring clutch means in the transmission means actuating the said date indicating members for enabling the adjustment of the date.

10. In a clock with automatic calendar one member for the indication of the units of the date, another member for the indication of the tens of the date, said date indicating members being mounted on one shaft, another member for the indication of the days of the week mounted on a shaft parallel to the first named shaft, a transmission actuated by the clock mechanism for automatic control with constant speed of said members, spring means in the said transmission for enabling the adjustment of said members, and a manually operable means for the indication of the month.

11. In a mechanism of the class described the combination of a member for the indication of the units of the date, another member for the indication of the tens of the date, a transmission actuated by the clock mechanism adapted to normally keep immovable said date indicating members and to effect with a constant speed a progressive change of the date indicated by said members, and spring clutch means in the said transmission for enabling the adjustment of said members.

12. In a mechanism of the class described according to claim 11 a member for the indication of the day of the week drivingly connected with the transmission actuated by the clock mechanism to effect each 24 hours with a constant speed /7 of revolution, spring clutch means in the said transmission for enabling the adjustment of the said day indicating member, and an adjustment means solid with the said day indicating member.

13. In a clock with automatic calendar a member for the indication of the units of the date, a member for the indication of the tens of the date, a transmission actuated by the clock mechanism for automatic control with a constant speed of said members and including a driving member loosely mounted on a transmission shaft, clutch means forming a yielding connection between said driving member and said shaft, and manually operable member for the indication of the month.

l LIn a mechanism of the class described a member for the indication of the units of the date, a member for the indication of the tens of the date, a member for the indication of the day of the week, a shaft carrying said members, a transmission actuated by the clock mechanism for automatic control of said members, a manually operable member for the indication of the month mounted on the said shaft, a driving member forming part of said transmission loosely mounted on a shaft parallel to the first named shaft, and spring clutch means forming a yielding connection between the second named shaft and the driving member.

15. In a clock with automatic calendar a member for the indication of the units of the date, a member for the indication of the tens of the date, a transmission actuated by the clock mechanism for automatic control of the said members, sp-ring clutch means in the said transmission forming a yielding driving connection normally allowing the actuation of the said transmission by the clock mechanism and enabling a manual adjustment of the date.

16. In a clock with automatic calendar a member for the indication of the units of the date, a member for the indication of the tens of the date, a transmission actuated by the clock mechanism for automatic control of the said members, spring clutch means in the said transmission forming a yielding driving connection normally allowing the actuation of the said transmission by the clock mechanism and manually operated adjustment means allowing to overcome the resistance of the said yielding connection.

1'7. In a clock with automatic calendar according to claim 16 a manually operated member for the indication of the month.

18. In a clock with automatic calendar a member for the indication of the units of the date, a member for the indication of the tens of the date mounted on one shaft, a member for the indication of the day of the Week mounted on a shaft parallel to the first shaft, a transmission actuated by the clock mechanism for automatic control of the said members, spring clutch means in the said transmission forming a yielding driving connection normally allowing the actuation of said transmission by the clock mechanism and manually operated adjustment means allowing to overcome the resistance of said yielding connection for adjusting said indicating members.

19. In a mechanism of the class described a member for the indication of the units of the date, a member for the indication of the tens of the date, a transmission actuated by the clock mechanism for automatic control of said members and including a yielding driving connection through which are operated the said members, said yielding connection being adapted to be disconnected to enable the adjustment of the said members.

BORIS ELBERG.

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