US358754A

US358754A - Clock or watch dial

Info

Publication number: US358754A
Authority: US
Publication date: 1887-03-01
Anticipated expiration: 1904-03-01

Description

\ (No Model.)

J. SINGLETON.

CLOCK OR WATCH DIAL. No. 358,754. Patented Mar. 1, 1887.

Ates b, Inventor,

N. PETERS. PhOIWLRMgn-lphen Washingion, D c.

UNITED I STATES PATENT OFFICE.

JACK SIlNGLETON, OF ST. LOUIS, MISSOURI.

CLOCK OR WATCH DIAL.

SPECIFICATION forming part of Letters Patent No. 358,754, dated March 1, 1887.

Application filed May 1,1885. Serial No. 16 l.10l. (No model.)

city of St. Louis, in the State of Missouri,

have invented a certain new and useful Improvement in Clock and \Vateh Dials, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing, forming part of this specification.

The drawing is a front view of an open-faced watch.

The mechanism is so arranged that the minute-hand A makes a complete revolution each hour, and that the hour-hand B makes a revolution in twenty -'four hours. Near the periphery of the dial 0 is a circular series of numbers, D, from 1 to 24, inclusive. Within the series of numbers D is a circular space, E, divided into sixty equal portions by minutemarks. Each fifth mark is not only made heavier than the others, but is extended inwardly, as seen at F, and at each of these heavy extended marks F is a number indicating the number of minute-marks from the top of the dial. These numbers are in a circular series lettered G. It will be observed that the figure-marks F are in radial lines wit-h the even numbers 2, 4, 6, 850., of the series D.

At H are marks extending inwardly from the circular or annular space E. These marks H are intermediate between the marks, and consequently in radial lines with the uneven numbers 1, 3, 5, 850., of series D.

To allow space for the twenty-four numbers of the series D, it is required that they shall be near the periphery of the dial, and as custom necessitates the making of the hour-hand shorter than the minute-hand it is evident that the hour-hand cannot reach these numbers, and hence the value of the leading-marks F and H, by which the eye is able with readiness to determine to which of the twenty-four numbers the hour-hand points, or which two numbers it may be between.

On the dial of a twelvehour time-piece the five-minute spaces and numbers coincide with the hour-numbers, and thus the circumference of the dial is divided into only twelve spaces, whereas with the twentylounhour time-piece the hour figures or numbers are twice as numerous, and only one-half of them coincide with the minuremarks. so that confusion is liable to take place in determining the time in the absence of the leading-marks H.

I claim 1. A dial of a ti me-piece having at or near the periphery a circular series of numbers running from 1 to 24, inclusive, within said series an annular space divided into sixty equal spaces, and within the annular space numbers in a circular series indicating the minutes in multiples of five.

2. A dial of a time-piece having at or near the periphery a circular series of numbers running from 1 to 24, inclusive, within said series an annular space divided into minutespaces, within the annular space numbers in multiples of five, and marks H, extending inwardly from the annular space between the numbers last mentioned.

3. The combination of a circular series of numbers, 1), annular space E, series ofnumbers G, and the marks F and H, all substantially as and for the purpose set forth.

JACK SINGLETON.

Witnesses:

SAML. KNIGHT, Gad-H. KNIGHT.