US1537482A - Calendar clock - Google Patents

Description

May 12, 1925. 1,537,482

- M. MARTINI CALENDAR CLOCK Filed Au.22. 1924 I 2 Sheets-Sheet 1 2 Sheets-Sheet 2 FIG. 3

May 12, 1925.

M. MARTINI CALENDAR CLOCK v Filed Auz. 22. 1924.

FIG. 2

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Patented May 12, 1925.

UNITED STATES 1,537,482 PATENT OFFICE.

MARCO MARTINI, OF OAKMONT, PENNSYLVANIA.

CALENDAR CLOCK.

Application filed August 22, 1924. Serial No. 733,580.

To all whom it may concern:

Be it known that I, MARCO MARTINI, a citizen of the United States, and a resident of Oakmont, ,in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Calendar Clocks; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to a combined clock and calendar, the main object of which is to provide mechanism which shall be automatic in operation to indicate the time in hours, minutes and seconds, and the day and date of each day for any period of time, the calendar portion of the device requiring only initial setting or winding for a period of a year, and the clock mechanism being the controlling element or escapement for the calendar-operating mechanism.

A further object of the invention is to provide a device of the character above referred to, in which the calendar operating mechanism isindependent of the clock mechanism in moving the characters of the calendar.

Still another object is to provide a combined clock and calendar in which the characters denoting time in hours and minutes are displayed in the form of figures arranged, with the words and figures of the calendar, on a flat vertical plane, and preferably arranged in spaced line-like forma-- tion, whereby the figures denoting time may be as readily read as the calendar portion.

The invention consists, generally stated, of a clock-like structure having a single fiat reading face whereon is displayed words and figures indicating the name of the day and the month, the date and number of days of the year, and the number of days of the month, together with the time in hours and minutes expressed in figures. The various words and figures of the calendar portion are displayed in a window which is separate from the figures denoting the hour and minute time, and said structure is provided with a hand and a dial disposed beneath the numerals denoting the hour and minute, for indicating time in seconds. The various words and figures are carried on tapes which are adapted to be moved automatically into registry with the windows of the structure as the change in time takes place.

In the accompanying drawing, Fig. 1 is a front elevational view of the mechanism of my invention mounted in a suitable frame, which frame may be the casing of the device, and in which the front plate or reading face of the case is removed; Fig. 2 is a vertical sectional view substantially on the line 22, Fig. 1; Fig. 3 is a horizontal section on the line 3-3,' Fig. 1; Fig. at is a front elevational view of the complete article showing the reading or.

dial face thereon; Fig. 5 is a detail view, projected from Fig. 1, of the calendar tripping mechanism; Fig. 6 is a detail of the feed rolls for moving the calendar and the gearing for moving the second hand; and Fig. 7 is a detail of the structure of the tripper lugs on the gears and shafts for operating the time drums-for moving the time tape.

The invention has two driving elements for moving the tapes, each comprising a spring barrel and a gear train, one element for indicating time, and the other for changing the calendar. Each element .is independently operable in actuation, but the calendar element is under control of initial movement by the time element. Thus the recurring change in time for each day at midnight releases the calendar mechanism, whereby said mechanism operates to change the calendar record.

The clock mechanism comprises a spring barrel 2 having the usual wind stem 3 and a ratchet 4. This spring barrel drives through a train of gearing indicated by the numerals 5 to 13, a disk wheel 14, the above mentioned gearing being of such ratio as to impart a half revolution to said disc for each minute of time.

The hour and minute numerals are each displayed separately on tapes 15 and 16, respectively, which are in driving contact with drums 17 and 18, respectively, as best shown in Fig. 2. which are intermittently driven or rotated to shift or move the ta es for indicating change in the hour and minute. These tapes pass around rollers 20 which are located so as to bring thetapes close to the front of the case for displaying the numerals of the hour and minute through a suitable window 44 in the casing.

Actuation of the tape for indicating the hour is brought about through rotation of the gear 11, which makes one revolution every hour. Mounted on the gear 11. is a lug 21 which is adapted to engage a lug 22 on a shaft 23 and give a partial rotation to a change the time.

same, said shaft having secured thereto an arm 24 which is connected by a rod 25 to a sup ort carrying a spring pressed pawl 26; sai pawl engaging with a ratchet 27 on the drum 17. Thus through rotation of wheel 11 the parts described above impart motion to the drum 17 to move the hour tape to Shaft 23 is returned to normal position by a spring 23, said spring also actingto return the pawl to normal position. i

Actuation of the minute tape is somewhat similar to that of the hour tape. The barreh 18 has a ratchet 28 which is engaged by a pawl 29, said pawl being mounted on a shaft 30, and said shaft has a lug 31 which is adapted to be engaged by a ing 32 on the disc wheel 14, said disc having two of said lugs diametrically opposite one another.

Movement of the disc 14 is timed in its rotation to trip or move the minute barrel once every minute or once for each half revolution of the disc 14. V

The second hand '35 is moved in roper timing by gearing in the clock train, all as in the usual manner with ordinary clock gearing, with the exception that the .arrangement in this instance necessitates employment of additional gears in order to position the hand in front of the calendar tapethese additional gears are indicated by the numeral 36.

The time mechanism includes the usual escapement employed with clock mechanism,

and which is indicated generally by the numeral 37, and which need not be described here. A tape 40 carrying the calendar characters printed thereon and displaying the name of the "day and month, the date of-the day and year, and the number of days of the month and year is wound on a spool or reel 41 journaled in the upper portion of the framing. Said tape is carried down past the display windows 42 and 43 between guide rollers 45 and 45 and between feed rollers 46 and 47 and secured at its free end to a lower spool or reel 48. The upper spool is suitably held in tension from unwinding by a ratchet and pawl mechanism 49.

Movement of the calendar tape occurs once each day at midni ht. The means for moving this tape comprlses a clock train including a spring barrel 50 and gearing indi cated by numerals 51 to 56, the gear 56 being secured to the shaft 66 of the feed roll 46.

The spring barrel has the usual wind stem and ratchet as with ordinary clock mechanism. The gearing in this instance does not run continuously as with the clock mechanism, but operates only once each day for moving the calendar tape, the gear ratios being only such as to impart proper travel of the tape between the feed rolls for changing the record as seen in the frame on the ..ably journaled to the casing and carrying a lug 59 which is adapted for contacting with a like lug 7 on the gear Wheel 7 of the clock gearing, whereby said shaft will be given a partial rotation for each revolution of said gear, said gear 7 making one revolution every twenty-four hours. The shaft 58 has an arm 60 which is connected by a link 60 to one arm of a bell crank 61, and the other arm of said bell crank carries a pin 62 movable in a bearing 63 and which is adapted for tripping a latch 64 which is pivotally mounted to the framing and which normally engages with a lug 57 on the escapement wheel 57 to hold it against rotation, said wheel having two lugs 57. Shaft 58 is provided with a spring 58 for returning the shaft to normal position. For each complete rotation of the gear 7 the shaft 58 is partially rotated, and through motion thereby transmitted to latch 64 which releases the escapement wheel 57 and permits the calendar gearing to turn. When said escapement wheel has made a half revolution it is again locked against further movement for a time interval of twenty-four hours.

The wind-up spool 46 is driven by a pair of friction drive wheels 65 engaging with the flanges of the spool and receiving motion from the shaft 66 of the feed roll through a train of gearing which is adapted todrive the spool to take up the tape in the same proportion as it is fed to the spool by the feed rolls 46-47, said gearing comprising a bevel gear set indicated by the numeral 70 which drives a compensating gear seat comprising the spur gears 71- and 71 and the mitre gear 72 and including the friction wheels 65 which are mounted on a frame 71 movable in bearings 71, said frame including the shafts 73 and 74. A roller 75 is journaled in the frame and is adapted to rest on the tape of the spool 46 andserves to cause the frame to rise as the tape winds up on the spool, thus moving the friction wheels across the face of the spool flanges for driving the spool to take up the windings of the tape proportionally as the winding builds up. I

I claim as my invention:

1. The combination with clock mechanism, of a casing therefor, openings in said casing, a tape adapted to contain designations representing hours of the day, a second tape adapted to contain designations representing minutes, and means for moving said tapes each independently by a single movement to bring the successive designations past said openings.

2. A time indicator comprising mechanism for indicating time in hours, minutes and seconds, a tape for indicating time in days and months, a Wind-up drum for the tape, means for driving the drum at progressively diminishing speed, and an escapement between said driving means and said first mechanism for periodic control of said driving means.

3. A time indicator having mechanism for indicating time in hours, minutes and seconds, a tape having thereon words and figures for indicating time in days and months, feed rollers, a Wind-up drum, means for driving said rollers, connections between said rollers and said drum for driving the drum to wind the tape proportionally as fed by said rollers, and an escapement device between said connection and said first mechanism for limiting the movement of said rollers.

4:. A time indicator having mechanism including a tape having figures for registering the time in hours, a tape having figures for registering the time in minutes, a second hand and a dial therefor, and said indicator having mechanism for registering the time in days and months comprising a tape having Words and figures thereon, and means for moving each tape intermittently for displaying the change in time as indicated by the Words and figures.

5. A time indicator having a clock mechanism for registering time in hours, minutes and seconds, a tape having figures thereon for displaying the time in hours as registered by the clock mechanism, a tape having figures thereon for displaying the time in minutes, connections between said tapes and said clock mechanism for independently moving the tapes, a second mechanism for indicating time in days and months, a

tape for displaying the time as indicated by said second mechanism, an indicator for in dicating time in seconds and means for controlling the said second mechanism to operate periodically.

6. A combined clock and calendar comprising clock mechanism for registering time in hours and minutes, a tape for displaying the time in hours, a like tape for the minutes, mechanism for intermittently mov ing said tapes in timed relation with said clock mechanism, a calendar tape for displaying the'day and month, a mechanism for intermittently moving said last tae, and an escapement mechanism between said clock and said calendar moving mechanism for limiting the movement of said last tape.

In testimony whereof I, the said MARCO MARTINI have hereunto set my hand.

MARCO MARTINI.

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