US235225A - Spacing and dividing instrument - Google Patents

Description

(No Model.)

A. K. FULTON. Spacing and Dividing Instrument.

No. 235,225. Patented Dec. 7,1880.

N. PETERS. PHOTD-LITMOGRAPHER. WASHINGTON n C UNITED STATES PATENT OFFICE.

ALBERT K. FULTON, OF BALTIMORE, MARYLAND.

SPACING AND DIVIDING INSTRUMENT.

SPECIFICATION forming part of Letters Patent No. 235,225, dated December '7, 1880.

Application filed September 13, 1880.

To all whom it may concern Be it known that I, ALBERT K. FULTON, of the city of Baltimore and State of Maryland, have invented an Improved Spacing or Dividing` Instrument, of which the following is a specification and I do hereby declare that in the same is contained a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

This invention relates to an instrument adapted to the use of draftsmen, mechanics, and others who are required in their profession or business to divide lines or spaces between points into a number of parts of equal length; and it consists in providing the well-known extensible device used in toys and for a variety of purposes with indicating-points at the joints of the diagonal strips, which points, as the device is extended or compressed, remain at equal distances apart.

In the further description of my said invention which follows, reference is made to the accompanying drawings, forming a part hereof, and in which- Figure 1 is a View of the device in a closed position. Fig. 2 is a view of the same in an extended position. Fig. 3 is a view of the invention, showing a modified construction of the same.

(No model.)

Similar letters of reference indicate similar parts in all the views.

A is the extensible device, formed of the strips a, pivoted to each other by means of eyelets or pins, as shown.

The indicating-points, which are preferably numbered, are represented by b, and they may be constructed as an extension of the strips a, as shown in the drawings, or secured in any suitable manner to the strips.

In Fig. 3 the instrument is shown as provided with intermediate points, which admits of the division of a space into more minute parts than ii' the main points only are used.

Supposing it is desired to divide a line into six equal parts, it is only necessary to place the point marked 0 at one end, and the point marked 6 at the other end, of the line. The intervening points will then indicate where the spacing-marks should be made.

I claim as my invention- In combination with the extensible device A, the indicating-points b, substantially as and for the purpose herein specified.

ALBERT K. FULTON.

Witnesses:

FELIx AeNUs, WM. T. HOWARD.

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