US832050A - Pencil-sharpener. - Google Patents

Description

No. 832,050. PATENTED 001'. 2, 1906. w. H. FERN & s. D. ROBERTS.

PENCIL SHARPENER. APPLICATION FILED 00m. 11. 1905.

2 SHEETS-SHEET 1.

annealing. M 4% Maw vvflmeooeo 06 @Wmwk 33% W A @flwl No. 832,050. PATENTED 00:17. 2, 1906. W. H. FERN & s. 1). RGBBRTS.

PENCIL SHARPENER.

APPLICATION FILED 00111. 1905.

2 SHBETSSHEET 2.

anucuioze UNITED STATES PATENT, OFFICE.

. WILLIAM H. FERN AND SAMUEL D. ROBERTS, OF SCRANTON, VANIA.

PE-NClL-SHARPENER.

Specification of Letters Fatent.

Pa.tented Oct. 2, 1906.

Application filed October 11,1905. Serial No. 282,316.

To all-whom it may concern:

Be it known that we, WILLIAM H. FERN and SAMUEL D. RoBERTs, citizens of the United States of America, residing at Scranton, in the county of Lackawanna and State of Pennsylvania, have invented certain new and useful Improvements in Pencil-Sharpeners, of wluch the following 1s a specification.

This invention relates to new and useful improvements in pencil-sharpeners, and has for its objer' 1' to present a device of this kind that will work automatically by the insertion of a pencil to besharpened.

It is also an object of the invention to present a novel device of this kind which is operated by a suitable motor, the action of which is controlled by a friction-brake, said brake being released by the pencil to be sharpened.

The invention also has for an object to present a novel device of this kind wherein the pencil to be sharpened is held stationary while suitable knives or cutters revolve around the pencil.

A still further object of this invention is to provide in a device of this kind a novel brake for controlling the operation of the device, the brake being provided with means tor holding the pencil being sharpened from fotation. 4 I Finally, an object of this invention is to produce a device of the character noted possessing advantages in points of simplicity, efliciency, and durability, proving at the same time comparatively inexpensive to produce and maintain.

lVith the foregoing and other objects in view the invention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail reference will be had to the accompanying drawings, forming part of this specification, wherein like cl'laracters denote corresponding parts in the several views. in which- Figure 1 is a sectional view of the device. Fig. 2 is a view in perspective of the brake employed in .the invention, saidbrake being shown detached. Figs. 3, 4, 5, 6, and Tare views of details of the invention. S isa view taken on the line b 8 of Fig. l.

Ill the drawings, 8 indicates the housing provided with an opening 10, through which slides adrawer or receptacle 11, adapted to receive the shavings or refuse of "the sharpen?- ing operation. To'insure the. depositof all the refuse within the receptacle, suitable deflectors 12 are arranged within the housing, as plainly shown in Fig. 1 of the drawings.

Within the housing is a standard 13, and supported by the standard and a wall of the housing is a shaft 14, which carries a coilspring 15, the purpose of which is to rotate the shaft 14 in one direction. A pawl 16 and ratchet 17 are employed as in all ordinary arrangements of this character, the purpose of which is thought clearly a parent. Carried by the shaft 14is a toothe wheel 17 which meshes with a smaller toothed wheel 18, mounted on, a shaft 19, s'uitably' supported within the housing. Also carried by the PENNSYL-J shaft 19 is a second toothed wheel 20, which meshes with a toothed wheel 21, arranged around a tubular extension 2.2,carried by a knife or cutter frame 23. -'The cuttereframe 23 comprises two head-pieces 24" 25, connected by the side pieces 26. Secured within the frame 23 and tothe heads 2425 thereof are the parallel cylinders 27, to which are secured the cutters or knives 28. The knives 28 are secured to the cylinders 27 by means of screws 29 passing through the elongated openings 3001 the cylinders 27. The ends of the screws are threaded into holes 31 of the knives or cutters. The elongated openings 230 permit of an adjustment of the cutters or to vary the angle of cutor the depth of cut. The head-piece 24 is rotatably mounted on a stud 32, threaded through a side of the housing, while the head-piece 25 is provided with a tubular extension 22, which fits within a sleeve 33, carried by the opposite side of the housing. The sleeve 33 registers with an opening 34 in the housing.

The pencil to be sharpened is inserted through the opening 34 of the housing,through the sleeve 33, extension 22, and between the spring 15 may be wound or rewound. To

hold the mechanism normally inoperative, a

frictionebrake' ifi-is arranged within the hous- "ing. This brake-bears against the wheel 21 on the extension 22 and is-c'arried by one end of abell-lever 34, which is suitably mounted the housing. To the opposite end of the sleeve 33 and is provided with a cam end 88, extending within the. bore of the sleeve. By this meanswhen a pencil is inserted withthe sleeve 33 it will contact with the cam. 38', force u the rod 36, operate the bell-lever 3.4;"; andre ease the brake from the wheel 21, andvthereby allow the cutter-frame 23 to rev olv'e until thepencil is removed. The cam 38 alsobindsagainst the pencil being sharpened. and holds the same against rotation, an arran ement which has been found most essentiavin operation. 7 Toreturn the brake to itsnormal position, a spring 39 is secured to the housing andbears against the bell-lever 34 It hasbeeniound in practice that the operation ofthe device is greatly facilitated providing: the cutter-frame 23 with a fly- W ieel40, asshown inFig. 3 of the drawings.

I -,-'Having.fully described our invention, what claim ajs;new, and desire to secure by Letters Patent,

r .1. In. combination, ahousing, a frame rotatabl mounted the-housing, knives cal'l'i byathe frame, a sleeve having an opening-carried by the housing, an extension on the-frame engaging the sleeve, a friction: brake for holding the frame'against motion anda-red'on the brake passing through the opening of the sleeve.

- 2i "lnicombination, a housing, a frame rotatabl Zmounted' the housing, knives car'rie .by 'theirame', a sleeve having an seaeso opening carried by the housing, an extension 6 carried by one end of the lever to hold the irameagainst rotation and a rod connected to the opposite end of the lever, said rod extending through the opening of the sleeve, and a cam carried by the free end of the rod.

4. In combination, a housing, a frame rotatably mounted within the housing, cutters I carried joy the frame, an extension on the frame, a toothed wheel on the extension, means meshing with the toothed wheel for rotating the frame, a sleeve on the frame engaged by the extension of the frame, said sleeve having an opening, a friction-brake. adapted to contact with the toothed wheel of the extension on the frame to hold said frame against rotation and an operating means for the brake extending through the opening of the sleeve. v v In testimony whereof we afiix our signatures, in the presence of two witnesses, this .9th day of October, 1905. I

WILLIAM H. FERN. SAMUEL D. ROBERTS.

Witnesses:

I Jenn II.JONES,

' GEORGE GANN N.

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