US653720A - Pencil-sharpener. - Google Patents

Description

No. 653,720. Patentedluly l7, I900. N. WEITZEL.

PENCIL SHARPENEB. I (Application filed. Feb. as, 1900.)

-(N0 Model.)

UNITE STATES PATENT QFFICE. I

ISAAC NORD WEITZEL, OF ROCHESTER, NEW YORK.

PENClL-SHARPENER.

SPECIFICATION formingpart of Letters Patent N0..653,720, dated July 17, 1900. Application filed February 28, 1900. Serial No; 6,856. (No model.)

To all whom it may concern:

Be it known that I, ISAAC NORD WEITZEL, of Rochester, in the county of Monroe and State of New York, have invented a new and useful Improvement in Pencil-Sharpeners, which improvement is fully set forth in the following specification and shown in the accompanying drawings.

My invention is a device for sharpening or pointing lead-pencils of that class in which the sharpener is designed to be held within a case, and the novelty resides in the peculiarities of construction, as will be hereinafter more fully described, shown in the drawings, and then particularly pointed out in the claim.

Referring to the drawings, Figure 1 shows the complete device about full size. Fig. 2 is an end view seen as indicated byarrow in Fig. 1. Fig. 3 is a longitudinal section of a part of the inclosing case, taken on the dotted line in Fig. 2. Fig. 4 is an elevation of the cutter-body detached seen as indicated by arrow in Fig. 3. Fig. 5 is an elevation of the cutter-body detached seen as indicated by arrow in Fig. 4. Fig. 6 is an axial section of the conical part of the cutter-body, taken on the dotted line in Fig. 2. Fig. 7 shows the inclosing case partly broken away and longitudinally sectioned, with the cutter body omitted.

A is a cylindrical inclosing case, of sheet metal or hard rubber or other suitable material, closed at the bottom-or lower end and open at the top. Within this case the cutterbody B projects longitudinally, as clearly shown in Fig. 3. This cutter-body is formed with a knurled projecting head a, adjacent to which is a cylindrical threaded part or band la, which when placed in the case A engages an internal threaded part i, Fig. 7, of the case. The knurled head Ct is purposely made slightly larger in diameter than the case A, as shown, and to project therefrom, so as to be more readily seized by the thumb and finger for the purpose of turning the cutterbody B into or out of the case, and for the purpose of symmetry and appearance I prefer to form the bottom plate or head 0 of the case of the same diameter as the head a, as ap= pears in Fig. 1. This head 0 is knurled, as

shown, and forms a means by which the case may be firmly held by the fingers while the pencil is being sharpened. It projects beyond the periphery of the case for this purpose.

The cutter-body Bis mainly conical in form,

as shown. The base of the inverted cone joins the band or cylindrical part b, the latter being between the cone and the head a, the latter being larger and the base of the cone smaller in diameter than the band I). The conical part is formed with a longitudinal slit or opening cl, Figs. 2 and 3, adjacent to which is a laterally-projecting flange or rib 2, Figs. 4 and 5. To this flange is secured by simple fasteners f a steel blade g, having its edge It projecting slightly through said opening d or overlapping the same. The end of the pencil to be sharpened is inserted in the cone, the axes of the pencil and the cone coinciding, and by turning the pencil against the edge of the blade the wood is shaved off, the detached parts or shavings passing through the opening 61 into the inclosing case, Where they are conveniently held and confined. Ordi narily in pointing or sharpening pencils the shavings or chips cut therefrom drop onto the floor or desk or into the lap of the person operating, thus making a litter objectionable and unsightly. This invention is designed to avoid this objection, the use of the invention rendering the operation of pointing a pencil cleanly and without litter. Furthermore, the case A constitutes a convenient handle by means of which to control the inclosed cutter, the size of the case rendering it convenient to grasp in the hand, and the blade g is made to face in a direction such that when turned against the pencil the tendency is to screw the case more firmly onto the cutter-body B.

The cutting-blade g is removable from the body B for the purpose of reedging or renewal. When at any time it is wished to clear the inclosing case of the accumulated shavings or parts out from pencils, the body B isunscrewed from the case for the purpose, the case then being open and clear at its up per end, as appears in Fig. 7.

What I claim as my invention is- .As an improved article of manufacture a pocket pencil-sharpener, consisting of a case closed at one end bya cap projecting beyond the periphery of the case and roughened,the opposite end of the said case being interiorly threaded, and a cutter-body conical in form of less length than said case and having a cutting-blade and a cylindrical exteriorly-r threaded portion near its outer end engaging the interior threads of the case, and having 10 a flange projecting beyond the periphery of said case and roughened, all substantially as herein shown and described.

- In witness whereof I have hereunto set my hand, this 24th day of February, 1900, in the presence of two subscribing witnesses.

ISAAC NORD WEITZEL.

Witnesses:

Enos B. WHITMORE, M. L. WINSTON.

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