US382437A - Pencil-sharpener - Google Patents

Description

` PATENT i rrrcn.

PETER PETRY, OF NEWARK, NEIN JERSEY.

PENCIL-SHARPENER.

SPECPICATION forming part of Letters Patent No. 382,437, dated May 8, 1888.

Application filed February 17, 1858. Serial No. 264,385. (No model.)

To ctZZ whom it may concern.-

l wood` of -the pencil is first cut away and then Be it known that I, PETER PETRY, of Newthe endof the pencil sharpened.

ark, 'in the county of Essex and Stateof New Jersey, have invented certain new and useful Improvements in Pencil-Sharpeners, of which the following is a specification.

This invention relates to an improved de vice for sharpening pencils in a quick and convenient manner, the device being specially adapted for school and office use, as it avoids the soiling of the fingers; andthe invention consists of a pencil-Sharpener formed of two hinged and spring-actuated lever arms or handles, of which one is provided with a pencilrest and a fixed pencil-holding tube, while the other is provided with a cutting-knife arranged at a proper angle of inclination to the axis of the pencil and guided by its forked end along a fixed arc-shaped arm of the iirst handle, said arinbeing provided with a stop at the outer end..

In the accompanying drawings, Figures 1 and 2 represent side elevations of my improved pencilsharpener, showing it respectively before and after cutting; and Fig. 3 is an end view of the same, partly in section.

p Similar letters of reference indicate corre sponding parts.

Referring to the drawings, A B represent two lever-arnis or handles, which are preferably hinged together at one end by a band-spring, and connected at their opposite ends by means of an arc-shaped arm, a, attached to the handle A, said arm having a stop or abutment, a', at its outer end. On the arm a is guided the forked end b of the handle B, which latter is steadily guided by the arm c and prevented from getting detached from the same by the stop, a. To the handle A is attached,inside of the arcshaped guidearm a, asecond xed arm, d, which supports an inclined guide-tube, D, into which the pencil to be sharpened is inserted, so that the point of the same rests on the arm A next to the tubesnpporting arm d, as shown in Fig. 3. The guided and swinging handle Bis provided with an inclined cheek, c, to which is attached the cutting-knife E by a suitable clampscrew, e', the cutting-knife being arranged at such an inclination to the axis of the guidetube and pencil that by moving the knifelcarrying'handle B against the ten 4 sion ofthe spring C toward the handle A the rlhe guide-tube D is provided with an inclined recess or cut-off, f, at that side adjoin ing the cutting-blade, so that the latter can pass close to the guide-tube and produce the cutting away ofthe wood of the pencil. The side recess, f, of the guidetube forms an essential feature of my Sharpener, as without the same the pencil-guiding tube would have to be arranged either at a greater distance from the pencil-rest or the point of the pencil would be short and stumpy.

The edge of the cuttingknife Eis preferably slightly inclined to the pencil-rest d, as shown in Fig. 2, so that only one end of the cuttingknife abuts against the same in cutting, by which the dulling of the edge is prevented. By alternately turning the pencil on its axis in the guide-tube and moving the knife-carry1A ing handle toward the pencilssupporting handle the wood of the pencil is cut off and the same sharpened in a quick and uniform manner without breaking otf the point of the same.

The device formsa convenient implement for `school and office use, as it facilitates the sharpening of the pencil without soiling the fingers. While in use the Sharpener is taken hold of between the thumb and fingers of one hand, while the pencil is inserted by the other hand into the guide-tube until it abuts on the pencil-rest and then turned on its axis after each oscillating motion ofthe cutting-knife, which is continued alternately until the pencil is uniformly pointed on its end. As the oscillatihg handle is steadily guided in its motion, the breaking offof the point of the lead is entirely avoided, as no lateral play of the cuttingknife can take place.

Having thus described my invention, I claim as new anddesire to secure by Letters PatentMn l. A pencil-Sharpener composed of oscillating and spring-actuated handles, an inclined pencil-supporting tube attached to one handle, and an inclined cutting-knife attached to the other handle, substantially as set forth.

2. A pencilsharpener composed of oscillat ing and spring-actuated handles, an inclined pencil-supporting tube attached to one handle and provided with an inclined side recess,and anhinclined cutting-knife attached to the other handle, substantially as set forth.

ICO

3..The combination of two springactuated handles hinged at one end, a device for guiding said handles at the opposite end, a pencilsupporting tube attached to one handle, and an inclined knife attached to the other handle, substantially as set forth.

4. 'Ihe combination of two handles connected by a band-spring at one end, a guide and stop device at the other end of the handles, a pencil-supporting tube attached to one arm and provided with an inclined side recess, and an inclined cutting-knife attached to the other handle, substantially as set forth.

5. The combination of two oscillating and springactuated handles, a fixed guide-arm attached to one handle and provided with a stop at the outer end for the forked end of the other handle, a pencil-supporting tube attached by an arm to the first handle, and an inclined cut ting-knife attached to the second handle, sub- 2o stantially as set forth.

6. The combination of two oscillating handles, one of said handles being forked at the outer end, a band-spring connecting the handles at one end, a fixed arcshaped guide-arm attached to the opposite end of one handle, a stop at the outer endv of said guide arm, a pencil-supporting` tube attached to one handle, and an inclined cutting-knife attached to the other handle, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

PETER PETRY.

Vitnesses:

MARTIN PETRY, J oHN A. STRALEY.

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