US762374A - Machine for sharpening or cutting pencils or the like. - Google Patents

Description

4 0 9 1 4 1 B N U I D B T N E A P s .E N I A B R v A" 7 m. 2 6 7 0 u MACHINE FOR SHARPENING 0R CUTTING PEN OILS OR THE LIKE.

- APPLIOATIOI FILED D30. 21, 1003.

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WITNESSES:

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No. 762,314, 1 PATENTED JUNE 14, 1904. F. E. v. BAINES.

MACHINE FOR SHARPENING 0R CUTTING PENGILS OR THE LIKE.

IPPLIOATIOI FILED D30. 21, 1903.

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NIL-762,374.

I Patented June 14 1904.

UNIT D STATES PATENT OFFIC j ;-,IFRE DERICK EDWARD VESEY Barnes, or? eunn'xwlcn, ENGLAND.

. MACHINE FOR SH ARPENING ORCUTTING PENCILS OR THE LIKE.

SPECIFICATION forming part of Letters Patent No. 762,374, dated June 14, 1904.

Application filed December 21, 1903. Serial Nor 186,046. No model.)

"To all whom it may concern.-

- Be it known that I, FREDicRIoK EDWARD VESEY Barnes, a subject of the King of Great Britain and. Ireland, residingat'1 6 Gloucester Terrace, Greenwich, in the county of Kent,

England, have inventeda certain new and useful Improvement in Machines for Sharpening Cutting Pencils or the Like, (for which I' have applied for Letters Patent in Great Britaim' No. 28,466,19earing date December 24. 11902,) of which the following is afull and complete specification. a

This invention relates to a new or improved machine for sharpening or cutting pencils and the'like, its'object being to provide a sharpening device which will readily and efiiciently cut or sharpen pencils and the like in a manner more nearly perfectthan has hitherto been possible either by hand or machine. A machine constructed according to the -present invention comprises, essentially, an 2 mang'ement havinga circular cutter provided with-a peripheral cutting edge, which I call th6-shaping-cutter, a second circular cuthavinga facecutting edge, which I call r e 'sharpening-cutter, both cutters being l niounted directly or indirectly on a shaft carried in bearings formed on or within a suitably-shaped frame or casing, a guide or holder 3 0 adapted to fit in one end of said shaft to receive the pencil or the like to be cut or sharpened, and means or mechanism for imparting .i. not only a rotary motion to the cutters, but

"also a rotary or planetary motion of said cutters around thepencil or the like, and in some core or graphite.

cases also a feeding motion to thepericil or i the" like.

" In the accompanying drawings, which illusv 5 and 1/ are caused to rotate on their respectwe itrate, by way of example, one form this inven- 4( ition' may assume, Figure. 1, Sheet No. 1, is a \sIn a suitably-shaped metal frame A, adapted to stand/on or be secured to a table or desk, is a. horizontal shaft B, adapted to rotate in suitable bearings 11, This shat'tB is U-shaped at its center, forming a frame U, which divides the said axle into two parts, on one of which is fixed a cranked handle D for rotating it, while the otherpart forms or carries a tubular guide or holder E for the pencil, the inner end of said guide or holder being shaped to form atruncated cone 0, the inner wall of which is dished inwardly or of a concave contour corresponding with the curve produced by the shaping-cutter.

The shaping-cutter F, which is adapted to cut thewood port-ion only of the pencil, is an edge cutter, and the other or sharpening cutter Gr, which is adapted principally to cut or sharpen the core of graphite or the like of the pencil, but cuts also that portion of the wood of the pencil adjacent to thecore reduced in diameter by the shaping-cutter, is a face-cutter. These two cutters F and (t are mounted on axles f and r running in bearings in the frame C, the position of the axle f with respect to the shaft B being such that the cutter F rotates in a plane with the axis of said shaft and projects through an axiallyarranged slot 1. in the end 1. of the guide or holder E. The position of the axle with respect to the shaft B is such that the cutter G rotates at an angle to the axis of the shaft B, so as to producea tapering ioint to the pencil. The cutter E cuts away the wood of the pencil in a curve corresponding to the curve of the cutter, but not quite down to the The cutter G cuts or grinds away the core or graphite and also continues the cut of the wood of the pencil as left by the shaping-cutter on a fresh curve at the reduced diameter of the wood.

axles and to rotate around the shaft B by being geared together by spur-whcelsf" and g or by equivalentmechanism and by one of the said axles being gearedwith a fixed rack, such as H, by means of a spur-wheel, such as K.

The guide or holder -E is made ot; a sufli ciently large internal diameter toreceive the largest pencils, and it is provided with interchangeable bushes or sleeves L for varying The axles f ular arrangement of the cutters, the point proessary. The sharpening-cutter instead of be- 5 arrangementdescrihed, whereby the cut of pencils and the like, Comprising a U-shaped shaft, a frame tosupport said shaft, a guide or holder to receiye the pencil or the like formed in said shaft, means forjrotating said shaft, abearing carried by said U shapeds'haft i defined inwardly-curved cone of aconcavity .in line with the grain offthe wood, as this jug-cutter on the other portionof the wood.

the spirit and scope of this invention.

duced comprises two distinct curves, that of the wooden portion or the major part thereof produced by the shaping-cutter being a sharplycorresponding to the arc of the cutter, while that produced by the second cutter-the sharpening-cutter-i's ofa curve of small radius for a portionof its length and for the remainder a gradually-tapering cone. The cutters are fixed on their axle by nuts f? g, so that they can easily be detached and replaced when necing mounted at an angle to the axis of the shaft may have its cutting-face formed to the desired curve or angle; but I prefer the the said cutter on the wood of the pencil next the graphite or core is in a direction nearly produces a smoother; cut on that part of the wood similar to. that produced ,by the shap- Means maybe provided to prevent the pencil from rotating in its guide. Further, it will befunderstoodthat more than two cutters may be employed withoutdeparting from 'hat I claim as my invention, and desire to secure by Letters Patent, is

'1. Almachine forsharpening or cutting;

at right angles thereto, an axle mounted in said bearing, an edge cutter mountedon said axle and adapted to workjonjthe axial line of the pencil, a bearing carried by said U-shaped shaft at an acute angle thereto, an axle mounted in said bearing, a' face'cutter mounted on said axle and adapted to work on the side of the pencil at an acute angle with the axis thereof, and means for communicating a rotary motion tosaid cutters, about their axles and a Planetary motionto'said axle-ass set forth. a v

2. In a pencihsharpening machine the combination with two rotary cuttersthe one-adapted to work on the axial line of the peneiland the other on the side of the pencil at an acute angle with the axial line thereof; of, means for giving a planetary motion to said cutters and of a guide for holding pencil, asset forth.

3. A machine for'sharpeningor cuttingpen- 'cils'or the like, comprising a shaft B shaped to form 'aframe C at about the center of its length, a'frameA for supporting shaft B,a guide or holder E in said shaft'for the pencil or the like, the inner end or said-guide being formed as a truncatedcone'and having an axial slot 1:, a bearing carried by the U-shaped shaft B at right angles thereto, an axle f mounted in said bearing, an edge cutter F mounted on the axlef and adapted to rotate inplane with the axis of the shaft B and project through -the axial slot 6- in the guide or holder 'E, a bearing carried by the Ushaped shaft B at an acute angle therewith, an axle g mounted in the said bearing, a face-cutter G mounted on the axle g and adapted to rotate atan angle with the axis of said shaft, a handle D'for rotating said shaft, and means fox-communicating motion from the shaft B to said cutters so that they rotate both on their respective axles and around the said shaft B by aplanetarymotion, as set forth. r

FREDERICK 1 EDWARD vnsnr uses;

Witnesses:

A. MILLWARD FLAc'K,

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