US35467A

US35467A - olivee

Info

Publication number: US35467A
Authority: US
Publication date: 1862-06-03
Anticipated expiration: 1879-06-03

Description

ATENT OFFICE.

F F. E. oLIvEE, oF NEw YORK, N. Y.

`COMBINATION OF PENCIL SLEEVE AND ERASER.

Specication forming part of Letters Patent No. 35.467 dated June 3, 1862.

To all whom it may concern:

-Be it known that I, F. E. OLIVER, of the city, county, and State of New York, haveinvented certain new and useful Improvements in Pencil Sleeves and Erasers Combined; and I do hereby declare that the following is a full, clear, and exact description of the same.

The greatest'inconvenience arising fromthe use of lead-pencils consists in the liability of the point of the pencil toV break off, necessitating frequentsharpening, which, besidescon suming much time and requiring the carrying about of an-auxiliary instrument to sharpen the pencil, is wasteful, since most of the pencil is used up by cutting away its wood parts in order to renew the point on the lead.

Many improvements have been suggested, invented, and used havingfor their object the protection ofthe brittle point in pencils, and they consisted, mainly, in the employment of a case with which is combined some device for pushing out from or back into the case the lead it is to contain. These cases, generally made of gold, silver, rubber, wood, or other hard substance, are costly, heavy, and unt to be used in connection with the ordinary leadpencil, (strengthened by a'wooden envelope,) but require the pencil to be used therewith to beespecially made for them, which, being unsupported by a wooden case, are of necessity brittle and consequently not liable to be sharpened.

\ The object of my invention is twofold-li rst, to protect the point of lead-pencils, so as to allow of the pencil beingu'carried about ones person without breaking the point, thus avoiding the annoyance of sharpening the 4point nearly every time it is brought into use; second, to afford at the same time the means for erasing or effacing pencil-marks; and l have accomplished `this by a single device consisting of a sleeve made of an india-rubber compound that,while having the adhesiveness and grittiness necessary to adapt it to the use of an eraser, shall preserve its elasticity, said sleeve being of a diameter to grasp the wooden envelope of the pencil with gentle pressure, so as to allow of its being slid upon and along the pencil, yet hold ontol the pencil with sufficient rmness to cause it to Vremain in the position it is `placed unless purposely removed therefrom. y

In the accompanying drawings, I have rcpresented in Figs. l, 2, and 3 an elevation, horizontal and vertical sections of my pencil sleeve and eraser combined. In Figs. 4 and 5 I have shown my improvement adapted to a pencil.

rIhe device, it will be seen, is shown to consist of a sleeve of an outside oblong or ovoidal form, a cylindrical opening passing through the middle and concentrically with its longer axis. It is made in molds or otherwise in any manner as convenient or well known to rubber-manufacturers, and it is composed of a vulcanizable elasticrubber compound, with which may be incorporated a line gritty substance. I make these sleeves of various internal diameters, lengths, and thicknesses, so as to suit pencils of differnt dimensions and to protect points wrought upon them more or less elongated. The sleeveis put on over the point, as shown in Fig. 4. It may thus be carried about ones person in pockets or otherwise without danger of the point breaking. When it is desired to use the pencil, it is simply necessary to push the sleevenp on the pencil, as shown in Fig. 5, when the sleeve may answer the purpose of an eraser.v

I am aware that rubber-tipped pencils have been used, but the tip being a permanent attachment or iixture to the pencil, it affords no protection to the point of thepencil. I therefore do not claim the rubber-tipped pencil; nor do I wish to be understood as confining myself to the precise form or shape described, itbeing obvious that with different forms of pencils-suoli as iiat, round, or polygonal, &c.-`differentshaped sleeves are 0r may be used; but

What I claim as an article of manufacture The combined sleeve and eraser, constructed to operate substantially in the manner and for the purposes specified.

In testimony whereof I have signed my name to this specification before two subscribing witnesses.

F. E. OLIVER.

Witnesses:

J oIN MAOKENZIE, BENJ. F. LEE.