US89109A

US89109A - Improvement in pencil-sharpeners

Info

Publication number: US89109A
Authority: US
Publication date: 1869-04-20
Anticipated expiration: 1886-04-20

Description

tant @wat SHEPHERDS. WOODCOCK, OF SOMERVILLE, MASSACHUSETTS.

Leners Patent No. 89,109, camz Afm'z 20,1869;y y

IMPROVEMENT IN' PENCIL-SHARPENERS.

Tha Schedule referred to in these Letters Patent and making part of the sume.

To all whom it may concern Be it known that I, SHEPHERD S. Wooncock, of Somerville, in the county of Middlesex, and State of Massachusetts, have invented an Improved Pencil- Sharpener, o which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in whicha Figure 1 is a plan of my improved I iencil-sharpener.

Figure 2 is a front elevation of the same.

Figure 3 is an end elevation of the same.

This invention has for its object to produce apencil- Sharpener, which will perform its work rapidly, and leave the pencil with a perfect point, which is not liablc to be broken during the operation of sharpening, and consists in a machine, in which the pencil is rotated and fed up, at the desired angle, into contact with a revolving wheel, having its periphery covered with sand-paper, einery-cloth, or other cutting-substance.

To enable others skilled in the art to understand and use my invention, I will proceed to describe the manner in which I have carried it out.

In the said drawings- A represents the base, or stand,'from\vhich rise the posts, or standards, b, iu which revolves a horizontal shaft, B, to one end of which is secured a4 wheel, C, the periphery of which is covered with sand-paper, emery-cloth, or other gritty, or cutting-substance.

D is an elastic band, or belt, which passes around a pulley on the shaft B, or around the shaft itself, and thence passes over the pencil E, which is thus rotated, as the wheel C is revolved, by means f the knob, or handle (l.

The pencil E is supported in the required position by means of guides, or holders, e f, projecting up from the stand A, each being provided with an eye of such diameter as to admit the pencil, andallow of its being freely rotated therein by the' band D.

The guide e is braced by a rod, 4, and its eye, 5, is bent or curved .so as to resemble a screw-thread, as

' seen in gs. 1 and 2, so that, as the pencil is revolved in one direction, it will be advanced, or fed forward, and its point retained in Contact with the periphery of the wheel C, by which it is out, or ground down rapidly as required, a guide-rest, g, projecting up from the stand A, serving to press the. point of the pencil against the-wheel O, and also prevent it from advancing too rapidly.

-If preferred, thc eyes of both of the holders, e and f, v

may be made in the form of a screw-thread, and the guide e may be adjusted, -by means of the` rod 4 and screw 6, so as to vary the angle at which the point of the pencil is presented to the grinding-wheel, thus rendering the point more or less acute, as occasion may require.

The above-described machine is of simple construction, and performs its work in a perfect and rapid manner, while the point of the pencil is not liable to be broken, an event of frequent occurrence where the ordinary pencil-Sharpeners, now in general use, are employed.

Claim.

What I claim as my invention, and desire to secure by Letters Patent, is p The within-described pencil-Sharpener, consisting, essentially, of the wheel C, with its shaft B, the belt D, guides, or holders ej, and guide-rest g, all combined and operating substantially as set forth.

. S. S. WOODOOGK. Witnesses:

P. E. TEscHEMAormR, W. J. CAMBRIDGE.