US309271A

US309271A - John c

Info

Publication number: US309271A
Authority: US
Publication date: 1884-12-16
Anticipated expiration: 1901-12-16

Description

(No Model.)

J. 0. WELOH. PERPETUAL GHRONOLOGIOAL CALENDAR.

No. 309,271. PatentedDec. 16, 1884.

lfigjfl Uirnn rarrs ATFNT rri JOHN G. \VELOH, OF NElV YORK, N. Y.

PERPETUAL CHRONOLOGICAL CALENDAR.

SPECIFICATION forming part of Letters Patent No. 309,271, dated December 16, 1884.

Application filed April 12, 1884. (No model.)

To aZZ whom it may concern:

Be it known that I, J OHN C. \VELOi-I, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Perpetual Chronological Galendars; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains tomakeand use the same.

This invention consists of aperpetual re-- versible chronological calendar composed of concentric rings which are adapted to be rotated on one anotl1e r,-aud are provided with like divisions of time on both sides, the divisions on one side being arranged reversely to the divisions on the other side, so that the calendar may be set from either side, and will give the same reading on both sides.

In order that my invention may be clearly understood, I have illustrated in the annexed drawings and will proceed to describe a practical form thereof.

Figure 1 illustrates one side of a calendar composed of two concentric rings. Fig. 2 illustrates the reverse side thereof. Fig. 3 is a cross-section of the same. Fig. 4 illustrates the manner of fitting the rings together.

The same letters of reference indicate identical parts in all the figures.

Each face of the inner ring, A, is divided by thirty-five radial lines into thirty-five equal spaces. where the days of five weeks are marked in regular order. Thirty-one equal spaces, where the days of the month are marked, are formed on each face of the outer ring, B, by thirty-two radial lines adapted to register with thirty-two of the lines on the faces of the inner ring, so that there is one Wide blank space, equal to four spaces on the inner ring, on each face of the outer ring besides the thirty-one marked spaces. On one, side of this calendar the numerals and days run from left to right, and on the other side from right to left,.and the days are so arranged and held from turning in ways and by means different from what I have shown and dcscribed. Any skillful mechanic can readily select other proper means for the purpose.

- =Fig. 5 illnstratesa calendar provided, in

addition to the rings A and B,with a ring, 0, each face of which is divided by twelve radial lines into twelve equal spaces, where the twelve months of the year are marked in regular on der, running from right to left on one side, and from left to right on the other side. To set this ring 0, it is turned until the current month is brought opposite to the blank space on ring B.

This calendar may be manufactured in the form of a watch-charm or as a pocket-piece. It may also be constructed in the form of a stand or paper-weight for use on a desk. It may be ornamented to any desired degree.

I claim as my invention The perpetual reversible chronological calendar described, composed of rotatable concentric rings which have both faces exposed, are fitted frietionally within one another, and are provided with like divisions of time on both sides, the divisions on one side being arranged reversely to the divisions on the other side, all substantially as before set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN C. \VELGH. Witnesses:

E. T. WVALKER, W. M. HANNAY.