US731200A

US731200A - Pencil-compasses.

Info

Publication number: US731200A
Application number: US12956002A
Authority: US
Inventors: James H Miller
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-10-31
Filing date: 1902-10-31
Publication date: 1903-06-16
Anticipated expiration: 1920-06-16

Description

No. 731,200. PATENTED JUNE 16,1903.

J. H. MILLER.'

PENCIL COMPASSES. APPLICATION FILED 001'. 31.1902.

N0 MODEL.

UNITED STATES Patented June 16, 1903.

PATENT OFFICE. 1

PENCIL-COMPAV$SES.

SPECIFICATION forming part of Letters Patent No. 731,200, dated June 16, 1903.

Application filed October 31, 1902. Serial No. 129,560. (No model.)

My invention relates to pencil-compasses;

The object of the present invention is the provision of a simple, inexpensive, light, and

durable pencil-compass which will have an attractive appearance and can be used in conncction with any ordinary pencil whether small or large.

Having the foregoing and other not specifically-mentioned objects in view, the invention consists of a pencil-compass comprising certain improved features and novel adaptations of parts, set forth in detail hereinafter and recited in the appended claims.

In the accompanying drawings, Figure 1 is a perspective view of the invention applied to an ordinary pencil; Fig. 2, a similar view showing the use of a bushing as when the compass-is used on a small-sized pencil; and Figs. 3 and 4., detail views of the holder for the pencil and the top portion of the compass.

The present invention is made from a single piece of wire, which-makes it inexpensive of manufacture and sale, while giving it lightness. The wire is provided with the leg 1, which passes up through a coil 2, of the shape of the frustum of a cone or of a cylinder, and then downwardly again at 3, and below this point is formed into the coil 4, thence bent into the curved double arm 5 and formed into another coil 6 in alinement with coil 4. The coils 4: and 6 constitute the holder for the pencil 7, while the curved arm 5 has the leg 1 passing therebetween, and the two portions of this curved arm 5 clamp against the leg 1 by the inherent springiness or resiliency of the wire forming the said arm 5, and thus hold the leg to whatever point it may be adjusted, so that circles of different diameter may be accurately drawn. The coiled portion 2 permits the adjustment of the leg in the curved arm 5 by forming a springy portion at said coil 2.

As shown in Fig. 2, a bushing 8, which may by preference be a section of rubber tubing,

can be employed in the holding of the coils r and 6 to accommodate a pencil of smaller size than the said coil, and a pen could be used and also an eraser, if desired.

I am aware that many changes of construction could be resorted to in carrying out my invention, and I therefore lay claim to all of such modifications as fall within the spirit and scope of the invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A compass comprising a leg, a holder for the pencil, and an arm extending out from the holder and having portions which embrace the leg and are adapted to hold it at different points of adjustment by the inherent resiliency of the portions of the arm.

2. A compass comprising a leg, a holder for the pencil, said holder being composed of coils, and an arm extending out from the holder and composed of two parts which are adapted to embrace the leg and clamp it where adjusted by the inherent resiliency of-the parts of the said arm.

3. A compass made from a single piece of wire comprising a log, a holder for the pencil formed of coils, then extended laterally and rebent to provide an arm which embraces the leg and is adapted to hold it by the resiliency of the arm at any point where adjusted, and thence bent into a coil constituting an extension of the holding-coil above named.

4.. The herein-described compass made from a single piece of wire comprising a leg having a coil loosely surrounding said leg, thence formed into coils constituting a holder for the pencil, thence bent into a laterally-extending arm and rebent and formed into another coil in alinement with the pencil holding coil aforesaid, said members of the laterally-extending arm embracing the leg on opposite sides and being adapted, by their inherent resiliency to hold the leg at the point to which it may be adjusted.

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

JAMES H. MILLER.

Witnesses:

. A. J. WISE, A. L. HALL.