US653286A - Pencil-sharpener. - Google Patents

Description

No. 653,286, Patented Julylo, |9oo M s. cooK.

`li'riuu. SHARPENEH.

(Application filed Aug. 25, 1899.)

(No Model.)

In -III uw 2 um www' a i In y .i Q Fi l WIT'JEEEEE:

NTTED STATES PATENT OFFICE.

MOSES GORHAM COOK, OF LYNN, MASSACHUSETTS` PENCIL-SHARPENEF?Il SPECIFICATION forming part of Letters Patent No. 653,286, dated July 10, 1900. Application fled August 25, 1899. Serial No. 728,501. (No modrl.)

To a/ZZ whom it' may concern:

Be it known that I, MOsEs GOEHAM COOK,

of Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Pencil-Sharpeners, of which the following is a specifica` tion.

My invention relates to a machine for sharpening lead-pencils; and it consists in a mechanism for holding and rotating the pencil adapted to act in combination with a controllable slide having upon it a mechanism for cutting the Wood of the pencil and a rotating grinding-wheel.

This machine is illustrated in the accompanying drawings, in which- Figure l is a plan showing all of the parts of the machine. Fig. 2 is a vertical section of the same `taken on line 2 2 of Fig. 1.

The device for holding and rotating the pencilA consists of aclamp B, mounted upon a hollow shaft O, the said shaft and clamp being made to rotate by a gear D. Rotation is given to the clamp B and its contained pencil A by the crank Q, acting through the shaft F and gears E and D.

The cutting-tool consists of a knife K, ad justably attached to conical casing mounted upon the standard I-I. This casing has an opening at I, through'which the end of the pencil can enter, as shown in Fig. l, and come` in contact with the edge of the knife K. As the pencil rotates the knife K removes the Wood and the shavings escape through the opening J.

A grinding-Wheel L is mounted upon a suitable standard, as shown, and is caused to rotate by a long pinion N, said pinion being driven by the gear O on the shaft F.

The above-described cutting-tool .and the grinding-wheel are mounted upon a sliding carriage G, which moves in Ways or guides M M and is limited in its motion by the pins P P.

To use my machine, I proceed as follows: The sliding carriage G is drawn back, as shown in Fig. 1, and the pencil A is inserted in the clamp B, the end (to be sharpened) of the pencil just entering the casing at I. Now the operator grasps the sliding carriage Gr with the thumb and finger of his left hand and the crank Q with his right hand. By turning the crank and at the same time sliding the carriage G toward the pencil, which is now rapidly rotating, the wood will be cut away and the grinding-Wheel L act upon the carbon and grind it away to the desired point. When this is accomplished, the carriage Gr may be Withdrawn by the lingers of the operator and the pencil taken out.

In a pencil-Sharpener, a rotating pencilclamp, a sliding carriage adapted to be controlled by the operator and having mounted upon it a wood-cutting device and a rotating grinding-Wheel, mechanism for rotating the pencil-clam p and grinding-wheel, including a spur-gear, said Wheel having a long pinion engaging the spur-gear whereby the sliding movement of the carriage does not detach it from the rotating mechanism, substantially as and for the purpose set forth.

In testimony whereof I have afliXed my signature in presence of two witnesses.

MOSES GORI-IAM COOK.

Witnesses:

JEROME INeALLs, EMILY W. DANEOETH.

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