US486513A

US486513A - Marking attachment for carpenters pencils

Info

Publication number: US486513A
Authority: US
Publication date: 1892-11-22
Anticipated expiration: 1909-11-22

Description

(No Model.)

A. P. STREET. MARKING ATTACHMENT POR CARPENTERS PENGILS.

No. 486,513. Patented Nov. 22, 18-92.

M5 5 CZZJL i i C] M3. 5 UH Qz A/Ww/m SMWXM/ W4Q E Nunms PETERS w. PKDTO-LITHCL. wnsnm 1 N UNITED STATES PATENT OEETGEc ALBERT FLSTREET, OF ROOKVILLE, CONNECTICUT.

MARKING ATTACHMENT FOR CARPENTERS PENCILS.

SPECIFICATION forming part of Letters Patent No. 486,513, dated November 22, 1892.

Application filed October 5, 1891. Serial No. 407,698. (No model.)

To aZZ whom it may concern.-

Be it known that I, ALBERT F. STREET, of Rockville, in the county Tolland and State of Connecticut, have invented certain new and useful Improvements in Marking Attachments for Carpenters Pencils, of which the following is a full, clear, and exact description, whereby any one skilled in the art can make and use the same.

The object of my invention is to provide a carpenters pencil with an attachment by the use of which a tool is provided with a markingpoint for use in making a finer line for the marking off of distances than is possible with the use of the lead or pencil end; and to this end my invention consists in the combination of a carpenters or like flat pencil with a sliding sleeve borne on the pencil and provided with a flat projecting blade, as more particularly hereinafter described, and pointed out in the claims.

, adetail end view of the device.

Referring to the drawings, Figure l is a detail side View of a carpenters pencil provided with my improved marking attachment. Fig. 2 is a detail top view of the same. Fig. 3 is Fig. 4 is a detail view illustrating the manner of using the marker.

In the accompanying drawings, the letter a denotes a pencil such as is commonly used by carpenters, having flat sides and being usually formed in cross-section to the shape of an irregular hexagon. On such a pencil is fitted a marker 1), formed of a sleevesection b and a blade b This marker is made of a sheet of metal of more or less resiliency and is usually stamped to shape from a fiat piece of thin metal and then folded up to the required form of a sleeve that will adapt it to fit snugly on the pencil and be held there by a frictional grasp of the walls of the sleeve. The metal is cut away, as at c, to lighten the sleeve and also to leave a portion d, that forms a spring that may be slightly depressed below the surface of the sleeve, so as to afford a surer frictional grasp upon the pencil to prevent the accidental sliding of the sleeve, and the sleeve may also be provided with one or more openings at various points thereof, as shown in Figs. 2 and? of the drawings. These openings also afford holding means for the ready grasping of the pencil and the marker in using the same. This sleeve is formed, preferably, of steel and the blade I) is tempered and hardened and brought to the proper square point to provide sharp marking-edges. WVhen not in use, the sleeve is arranged on the pencil with the blade lying against the side and in from the end,-while when needed for use the sleeve is readily slid toward the end of the pencil, so that the blade projects a distance, as shown in the several figures of the drawings, to enable it to be used, as shown in Fig. 4. The blade being flat narrow and sharp-pointed enables a mark denoting any distance or line to be very accurately marked.

This marking attachment is not only adapted to the flat pencil described,but to an oval one, the main requisite being that the pencil shall be of such shape and the marker so adapted as to prevent the latter from rotating or slipping around on the pencil. The sleeve is so formed as to practically form spring grasping-arms extending both ways from that portion of the sleeve that is in line with the projecting blade, one end of the sleeve being cut away, as shown in figures of the drawings, so as to provide for an extension of the blade beyond the end of the sleeve.

I claim as my invention- 1. In combination with a carpenters pencil flat or oblong in cross'section, an adjustable sleeve conforming in shape to the shape of the pencil and provided with frictional clamping-arms, and a projecting flat blade having an angular marking-point, all substantially as described.

2. In combination with a carpenters pencil fiat or oblong in cross-section, an adjustable sleeve conforming in shape to the shape of the pencil and provided with frictional clamping-arms, a projecting flat blade having an angular marking-point, and the corrugations formed in the body of the sleeve, all substantially as described.

ALBERT F. STREET.

Witnesses:

CHAS. L. BURDETr, A. B. JENKINS.