US66289A - Improvement in calendars for glooms - Google Patents

Description

M w@ @Av l www@ @Av NAEETERS, PHOTC-LITHOGRAFHER, WASHINGTON, D C.

@eine tars atrnt @fitte ALPHONSO BOARDMAN, OF FORESTVILLE, ASSIGNOR TO HIMSELF ANI) N. C. HUBBELL, OF NEW HAVEN, CONNECTICUT.

Letters Patent No. 56,289, dated July, 186i'.

IMPROVEMENT IN CALENDARS FOR CLOGKS.

TO ALL WHOM IT MAY CONCERN:

Bc it known that I, ALPHONSO EOARDMAN, of Forestville, in the county of Hartford, and Stato of Connecticut, have invented a new Improvement in Calendars; and I do hereby declare the tbllowiug, when taken in connection with the accompanying drawings, and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in

Figure I, a front view.

Figure 2, an end View; and in Figure 3, a similar end view to illustrate the operation of the calendar.

This invention is designed to be placed within aclock-case, and by connection with the movement e' the clock to be operated at the proper time to present a new date to view, but may be used in a ease independent of the clock-case, if preferred; and consists, first, in the peculiar manner of combining the days of the week upon one cylinder, with the days of the month upon a ribbon upon another cylinder, so that a ribbon only is required for the months; and, second, in the escapemont for changing the date; and to enable others to construct and use my improvement, I will proceed to describe the same as illustrated in the accompanying drawings.

A represents the cylinder, upon the surface of which are printed the days of the week, and is supported upon a shaft, B, resting in proper bearings in plates C C. Fixed to the same shaft is a second cylinder, D, and below upon another shaft, E, a third cylinder, F. Fixed tothe two cylinders I) and F is a ribbon, having printed upon its surface the month and day of the month, and so that by the revolving of one cylinder, F, the ribbon will he drawn from the other cylinder, I), and the month and day of the month printed on the ribbon corresponding with the days of the week printed upon the cylinder A. The clock-work upon the frame C, ns seen in iig. l, causes the cylinder F to draw thc ribbon from the cylinder D when permitted. G is au escapement wheel., fixed to the shaft B, seen in fig. 2. Upon the plate, below the wheel G, I tix a lever, II, provided with-two arms a b, represented in`iig. 2 as in a state of rest. At the proper time, sayat twelve o`clock at night, the lever II, by connection with the clock movement, is raised from the position in tig. 2 to that seen in fig. 3, the tooth on the wheel G, which was held by the arm b, escapes, but the wheel is prevented from turning by the arm a, which catches upon another tooth; then, when the lever H is heleascd from the operation or" the clock movement, it will fall, as denoted in iig. 2, and the arm 5 catch upon a second tooth and permit the two cylinders A and B to be moved one notch and'present a new date, and so ou at the ond of each day. An opening is formed through the clock front, so that the day, month, and day of the month may be plainly seen therethrough.

It should be stated that, inasmuch as Ythe spaces between the days of the week upon the cylinder A are equal, and their position unchanging, while the ribbon, constantly unwinding from the cylinder D, diminishes its diameter, it .is necessary that from the beginning ci' the tape, which is the beginning of the year, the spaces. upon that tape should gradually increase, in order that the proper relative position be always maintained between the day of the week and the month. At the end of the year the day of the Weel: changes, and that the cylinder A may at that time be properly adjusted, it is held upon the shaft .so that it may be turned independent of the cylinder D for proper adjustment.

I have represented the calendar as to bc placed in direct connection with a clock movement. This is its special design, yet if preferred, and it may4 be often desirable that the calendar be placed in a case, or so as to be operated independent ofthe clockvmovement when so arranged, to change the day simply raise the lever and let it return, as before described. The clock-work, which causes the cylinder F to revolve, requires to be wound but once a year. At that time re-wind the ribbon upon the cylinder D, and set the cylinder A so that the proper day of the week corresponds with the first day of the year, and the calendar is set for another year.

Having, therefore, thus fully described my invention, what I claim as new and useful, and desire to secure by Letters Fatent, is-

1. The combination and arrangement of the cylinder A, representing the days ot' the week upon its surface, with a ribboirupon two cylinders, D and F, arranged and operated so as to present the date corresponding to the day of the week.

2. The combination of the wheel G and lever H, provided with its two arms a and l, with cylinders l) and F arranged so as to release and hold the cylinders, substantially in the manner herein described.

ALPIIONSO BOARDMAN.

Witnesses:

Jenn E. EMILE, JOHN H. SnUMwAr.

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