US1121423A - Pencil-sharpener. - Google Patents

Description

E. B. VAN NORDEN, H. P. HAMBURG 8: S. S. HARPER. E. L. HARPER, EXBOUTOR or s. s. HARPER, DEGD. PENCIL SHARPENER.

APPLICATION FILED FEBJI, 1907.

1,1 21,423. Patented Dec. 15, 1914.

2 SHEETS-SHEET 1.

INVENTORS.

WITNESSES v I I 1 I ATTORNEY THE NORRIS PETERS c0, PHOTD LI1HO.. WASHING TON. o. C.

E. B. VAN NORDBN, H. P. HAMBURG & S. S. HARPER. n. L. HARPER, EXEGUTOB or s. s. HARPER. DEG'QD.

PENUIL SHARPENER.

APPLICATION FILED FEB.1I, 1907.

Patented Dec. 15. 1914..

2 SHEETSSHEET 2.

WITNESSES HE NDRRIS PETERS C0.,PHO1U-LITH(L. WASHING f0". 0. l

' To all whom may concern ERIC B. VAN NORDEN' AND HENRY PH PUR E NEW Yam, my, Ann sAMUEL s,

4 HARPER, 0P PHILADELPHIA, PE-NEsYLvANIA; EL NOR 1'...I-IARPJE1II3 E EcUron- ,OF SAID SAMUEL s. HARPER, nErc AsEn. 1

PENCIL-SHARPENER.

Be it known that we, ERIo BPVAN- NOR- DEN, a resident of the city of New 'York, county of New York, State of New York, HENRY P. HAMBURG,- a resident of the city of New York, in the borough of Queens,.

, county of Queens, State of New York,"and

SAMUEL S. HARPER, a resident of the city of Philadelphia, in the county of Philadelphia and State of Pennsylvania, all citizens of the United States, have invented certain new and useful Improvements in P6110111 Sharpeners, of which the followingis a, full, complete, and exact disclosure. U

The object of our invention is the production of a pencil sharpener which is simple and inexpensive in manufacture, while, .at

the same time, the-parts may be easilyas sembled, which will operate with efliciency, and with a minimum liability of becoming disarranged, and in which the parts which become worn or mutilated, may be. easily replaced, such forinstance, as the cutting.

blades, or knives. I

A further object of our invention is to provide a gradual downward feedof the pencil during the sharpening operation and.

avoid placing the pencil under uneven lateral pressure, and this is accomplished by.

supporting the pencil on-tapering surfaces and by providing opposing knives, which,in

. verse views respectively of the cutting making the cut, give substa'ntially'the same pressure on opposite sides of the pencil, or the lead carried thereby.

fected, in the preferred form of our device,

by making the knives capable of bringing a new cutting edge into engagement with the pencil after every cut. I

A further object of our invention is to provide an article which may be conveniently placed upon a desk where it is accessible whenever, it is desired to sharpen a pencil, which is of such a shape thatit may.

be used for'othe'r purposes, as for instance, a paper weight, and Which will provide a receptacle for the chips removed in'sharpening the pencil, or for pens, pins, paper fasjteners, andother sim lar accessories.

' the desk,

- Further objects of our invention will appear. in the specification and claims below.

orv plurality of knives, or blades,,which are TED STAZMENT OFFIC Specification'of Letters Patent. Patented De 15 1 914. Application filed. February 1-1, 1907. .Serial 1\T )."356,'755. I

Briefly, our invention comprises aknife,

able slide mounted onthe outside of a suit-j I Y ableflcaslng. This movementwillcause the cuts to be evenly and accurately made at the end of the pencil, while the shavings, or

chips, :which, are removed therefrom, are I.

the person using thesharpener, or littering be thereon.

or soiling the papers which may ,prevented'from becoming scattered,)thusobvlatingjall danger of in uring the hands of For a full, clear and detailed-description of one form of our invention, reference'may be had tofthe following specification, and'to the drawings forming a part thereof," in which-+ j V F igurel represents a perspective view of our improved pencil sharpener; Fig. 2 is a vertical sectional view showing'the knivesH at their'lowestposition, or at the end vof a cutting stroke; Fig. 8 is a similar sectional.

view showing theknives in their raised positions, .or at the beginning of the cutting I stroke; Figs; 4 and 5 are obverse and reknives and their carriers; Fig.16is'a detail view of the vmechanism for lifting androtating'the pencil during the operation of the device; Figs. 7'. and 8 are perspective views of thepencil guides; Fig. 9 is a detail sectional view showinga pencil and itsrea lation to said guides and" Fig. 10 is'a detail I view of the ratchet forrotating thebl'adesQz.

Referring to the drawings; 1 indicates a suitable base, or; standard which is prefer-. ably heavy, and to the, upper surface of -which is attached a shallow disha, which of which is secured to thetopof the tray by lead which? are means of. a screw 5. -This'casing may be of any suitable shape in cross: section, but it should be provided with a pair of-flat pareallel sides 3,'each of whichis provided with 2 a pair of converging slots or guideways; 6', for the knife'carriers, which are to be described below. The vertical sides of the Y casing should-be parallel to form a guiding surface tor'the ring, or band, 7 which constitutes the means which is grasped between the fingers of the operator for. operating the mechanism. One of the slots, as for instance v6 7011 each side of the casing3, is provided at'it s upward end withl a'n enlarged hole, or opening 8 through which the cutting knives are inserted within, or removed, 7

I from the casing.

"Referring now particularly to and 5,the knives 9,.con'sist o fa carrier 10, hav

' ing fiat parallel oppositesides 11, 11 adapt ed to fit within the contracted portions of i the slots 66.' At the central portionof by said sides 7 with'n grooves h The ends of the blades then are held in posi-,

I I the carrier on studs12; are nio intedfcircular blades 13 and between the blades and the Theouter parallel endsof the guiding surface of the'carriers project through-the 30 slots6, 6, and when in operative position, their upper endsrest against the nwardly turnedtop sides 7 of the band 7. The ends of the carriers are retained within the band through openings 17 in said band, and having' their ends bent at substantially right angles so-that when-the said ends are turned into the position shown in Fig. 1 to rest 18 in the outside of tliecarpins are locked to thesaid band.

tion with respect to the band 7 by the inturned tops 7 and the pins 16. Adjacent the uppe'rendoteach slot 6 is a pawl'19, pivoted'to a sta'ntial ly horizontal position by a lug 21,

, resting against a stud22 of said bracket.

I I amount-of rotation'oi the blades will depend uponthe point to which'the band 7 is lifted,

By means of the 'niechanism above described, a reciprocation of the band 7 will 50;

cause the knives 9t0 traverse the slots 6, 6 in the casing, and when the knives are'near the dipper end of their travel the ratchets 145 will come into engagement with thepawls 19 and the blades 13 will be given a short movement or rotationj As the ratchets con-1 tain a large number of teeth, and asthe it will take alarge number of reciprocations erative cutting position with respect to the cation of of the band 7 to bring the same point in the circumference of the'circular blades into oppencil, with the res lt'that at every recipro-' the band ,7 anew point. of thelcircumference of the cutting blades 13 is caused and the pins 16 passing bracket 20, and retained in a sub-.

to engage thepencil. The blades will; there- 'fore; be prevented from becoming nicked or worn in any one part-iculz'ir.spot, and will 'consequently last or remainf sliarp foran indefinite length of time.

The pencil holder consists of the: circular tube 23 having one. or' both of its 'endssplit' longitudinally asat 2 1, to form spring fin- ,gersQh, which tightly clasp the pencil; and I to the body portion of the said tube '23 is secured a sleeve 26; the upper endof'wh'ich i is provided with a ratchet27 havingl'dowm wardly extending teeth 28. Tl e upper end is of the said ratchet 27 is provided" with an '86 f inwardly extending fiange29,-which loosely surrounds the tubular, sleeve 30', struck 'inwardly from the top of the casingand pro-' vided at itsllower endwitliatlange3l," Also 'scciired to the top of the casing by struclc-v uplugs 32, passing through suitable opens ings- 32 and fitted withinthe inside of {the casing,- are two complementary members 33 x 33* which together form a head 34;; providedlwith a ratchet 35 cotiperating with the a ratchet 28 and a downwardly extending tubular portion 36' which terminates in" a: Y 1* i conical pencil supporting SUITERCBBT. The sides of the conical pencil ;supporting*sn rface are'cut away and bent backwardlyj as 3' at 38 to form an opening 39.150 PGTHllil'illlQ blades 13 togengage with the outer side of the pencil. The lower ends of the said'meinbers extend throughthetop ofthei partitions 4L0, fitted within the lower end oithe casing, I v

andarebent SidGWlSB, as at 33, againStsaid partition, thereby locking said members and v said partitions together.

41 indicates the sat top Oriole partition 40,1113011 whichthe lead of the pencil rests whenjthe sharpeningoi thesanie has been completed.

' e2 indicates coiled'compressionspring having its ends resting upon the top Oflllle ratchet 2'6,'and the inside of the top or the casing respectively and acting tonorinally hold the ratchet 'teethQS inengageinent with ,7

the ratchet teeth 43 indicates a pivoted member. carryingat the'top thereof a pawl 1 1 adaptedfto pass through the slot {15 in the head 34" of;

the member 33,"and coiiperatin'g with the ratchet teeth 28' of theratchet 27. This member is pivoted to the-inside of the casing as at 16- andi's provided'with two arms 17 and 18, which extend outwardly and T are adapted to'swing into the path ofthe carriers 10. V 1

The operation of our device isas followsz The parts being in the positions indicated in Fig. 2, a pencil 'isinserted withinthe upon the pencilsupporting surface 37 The band 7 isthen lifted upward'and the knives are-raised to the-positionshownin Fig; 3. The upward movement 01 the k'n'ivesbringsspring fingers 2-1 until"its lowerend. rests I contact'with' the ratchet teeth 35and to pre-.

vent. any backward rotation ofthe pencil.

. 46 carryingthe pawl '44 upwardly into. engagement with the ratchet teeth 28, the effect of which is to lift the ratchet 27, the pencil holder, and the pencil carried thereby for a the carrier 10 into contact with the arm 47 which turns the member 43 about its pivot shortdistance and to give the-same a partial rotationabout the axis ofthe pencil. The

band 7 isthen moved downwardly,v which movement allows the ratchet 26 to comeinto The knives continuing to descend,cutn'or 1 gages with the ratchet 14 of the rotating v knives, serves to provide a new cutting sur-.

shave 0d the opposite sides ;of the pencilv through thefopening39, and the chips drop on the partition and pass downwardly through the opening 49 in the side of the, casing to the tray 2. y In. moving downwardly, the carrierengages the arm 48, of the member. 43*.and returns the pawl into .the position shown in Fig. 2 into positionto engage another tooth,28 of the ratchet 27. The next upward movement of the knives lifts the pencil carrier 24 and gives it another short movement, or rotation and .the

operation is repeated.

As above stated, the pawl 19 which en face foreach reciprocation of the knives.

B oviding a structure in which the pencil is lifted from the tapered pencil supporting surface 37 at the end of each cut,

the pencil may be easily rotated to bring a new portion of the pencil into 'alinement with the paths of the knives without being obliged to overcome any friction between 1 the said surface and thepencil pointduring the rotation.

The downward feed of the pencil is acto cut another chip, the pencil is" drawn downwardlyfirmly into the conical pencil supporting surface 37 until there is sufii cient resistance to cause the knives to cut; This operation is repeated and as the pencil is-cut away, it is automatically fed downwardly until the point of Y the sharpened pencil rests upon thetop 41 ofthepa'rtition, 40, whereupon the knives having 7 taken a final cut aroundv the -pencil,*will cease to cut, thus indicating that the sharpening operation has been completed. In this way it is not possible to cut away and waste the pencil, whilethe pencil is always pointedor sharpened in the same manner and the lead of. thepencil is always of the same length as it was before 'thepencil was sharpened. It 1 will thus be seen that the pencil is not un-' necessarily cut away, and the life of the pencil is, therefore, greatly prolonged.

We have found it is preferable tomake the angle formedby the guides 6 and .6 for the knives more acute than the'angle of the taper. of the pencil supporting surface.

'. This featureis clearly illustrated in Fig. 9

of the-ydrawings in which it will, be noted that the taper of thepencil is sharper than the taper of the supporting surface, the.

angle which theyknife makes with the pencil corresponding. to the taper of the" pencil. With this construction, the guides or'supporting, surface diverging upwardly at a wider'a'ngle than the angle which the knife makes with the pencil,.,lets the'knife down deeper than it would if. the angles of thetwo were alike, and 'as the knives come down they cut off a comparatively heavy chip, but

= as the pencil is cut away and fed down, the

angle of the guiding or supporting surfaces converge or come together more rapidly than the angle to. which the pencil is cut, so that after one sheet has been removed, the

pencil is allowed to feed downwardly a little less distance than itwas at the preceding cut of the knives, and when the pencil reaches the bottom and can go no farther, no chip is removed'from: the pencil. Thus it is that a smaller and smaller chip is removed from the pencil as the pencil is allowed to feed downwardly. This construction provides f.

for a graduated downward feed of the penoil through the cutting operation, the knives are not required to remove so heavy a chip when finishingthe sharpening operation as at the beginning of the same, and the liability of breaking the lead is greatly reduced.

In connection with the description ofthe parts andthe operation'thereof with respect to each other, it will be apparent that the casing or standard 3 and the ring or band '7 are parts which, have a relatively slidable movement with respect to each other, and that by reason. of the slots longitudinal of the casing 3 and arranged at an ,angle with respect to theLaXis of the pencil. through a which the ends of the carrier for the knives extend, together with the inturned edges 7 :of theband 7 and the pins 16 adjacent the lower edge of the band, give to the knives, when one ofsaid members is moved with respect to the other, both a longitudinal and a transverse movement. The recess in the band 7 between the inturned edge7 and the pin 16 constitutes substantially a transverse slotor groove in the band or ring 7 which permits of the transverse motion of the knives. These parts, therefore, form a co-'- 'OPQIittlVB means for operatlvely locating or determining the position of the knives within the casing 3, andfor giving to the knives having respectively longitudinal "and trans-f a transverse andl ongitudinal movement, whereby the knives are moved progressively toward the aXis of the pencil on 'thedownward stroke and away from the axisiof the :5 pencil on the upward stroke-thereof. i nvention,

:Having thus described our what we claim as new and ,desire'to protect by Letters Patent of the United'States is:

I 1; In a pencil sharpener, the combination for op'eratively locating said fknite 'in said sharpener, comprising relatively. movable parts, said partsrespectively hav ng angu-w larly' dlsposed guides "for giving saidknlfe' a transverse a d longitudinal movement in relation to the'pencilto be sharpened,

2. In a pencil sharpener, the combination- Wltli'fl rotatable cutting knife, of cooperat- I ing means for operatively locating said knlfe in said sharpener, compris ng rela- "guides disposed at angles] for giving said knife a longitudinal and transverse movement in relation to the pencil to be sharp- 3. In a pencil. sharpener, the combination with a cutting knife, oi? cooperating means for operatively locating saidknife in said sharpener, comprising relatively slidahle p arts, oneof said partshaving longitudinal verse gi'iides forgiving knives converging movements when reciprocated' in re;

lation-to the pencil. to be sharpened, In a pencll sharpener, thecombinat on with a' plurality of opposed cutting knives,

oi cooperating means for operatively locating said knives in said sharpener, said means having respectively longitudinal converging guides andtransverse guides for giving said knives converging movei'nents when reciprocated in relation to the pencil to he sharp-'3 ened.

p G. In apeneil sharpener, the combination 7 Wltlift plurality of opposed cutting-kinves, 0t I cooperating means tor locating said knlves Wvithin said sharpener, and 'for giving the same a. longitudinal and t'ansverse' movemerit-in relation to the pencil tobe sharpened when the parts of said means are operated.

7.111 a pencil sharpener,the'coinbination' with a plurality Of'OPPOSECl cutting knives,

[of means "for giving said knives aflongitn dinalmovement in relationto the pencil and frame engaging said 'knives for giving with a cutting knife with cooperatingmeans,

I a casing carried by said'sup'port, having contively slidable parts respectively having slots and the other of; said parts having tions, a casing havingconverging slots.

, a support having converging slots within" which give a "transversemovement to the;

knives inrelation to the pencil tobei sharp f ened. j v I In a pencil sharpener, the combination 1 of a plurality of opposied cutting knives, a

same;alongitudinal movement in relation to the pencil to' be sharpened, "and a casing having convergingf'slots therein-for, giving said knives a transverse movement in rela'' f tion to said casing. -"K1j;

9. In pencil sharpener, thecombination of a support having a central socketatherein,

verging slotsv therein, cutting knives engaging said slots, and a slidable frame also en-" gaging said knivesyfor' giving thelsa'me a longitudinal movement in relation 1 to "said, Casing. If '-i I 10. Ina pencil sharpener,- the combination 1 of a support having a tapering seeket,ther in, and having convergingcut"away'portions intersectingsaid socket, a casinginclosin'g said support and having converging-slots therein corresponding to! thecut avvayportions of said-support, knives engaging said slots, and a frame alsoenga'ging said knives and slidahle upon said casing,i orflgiving said knivesva longitudinal movement within I said casing. v V 3 v 1 11. In a pencil sharpener,thecomhination'1 of a support having a tapering socketjtherein, and having'convergingcut away porv knives engaging said slots and'a fianged frame which also engages said knives and by which a longitudinal movement may be; giventheret o'. p ff Ina pencil sharpener, the combination, of a support having a socket thereim'andhaving converging cut away vportions inter- I 5 secting said socket, a casing havingconvergi .ing slots therein, knives engaging said slots, said knives having of? set "cutting edges to 110 bring them adj acent the surface of the out away portions and means for givingv said" knives a longitudinal movement in'said slots. i '13.; Ina pencil sharpener, the combination with'a' rotatable cuttingjknif of coo erating n'ieans for operatively locating sai knife in said sl'ia'rpener, the same comprisingrela tively' slidab'le partsrespectively, -havingguides disposed at angles to each. other for g saidknifte a longitudinalandtrans-j vers movement inrelation to: the pencil'to he "sharpen ed j'and means f for turning said knife-g a 142-; ln' apeneil sharpeneiyjthe combination 1- with aplurality of opposed rotatable cutting 5125 knives, of cooperatingJmeans forgivingthe 1 same; reciprocating movements in converg- I '3 -ing paths,,and means for aiitomati'ea11y;ro-

6 I -w'h'ich said knives are adapted to work-"and they? i withsaid pencil. I

. tating saidknivesas they approach one end of their longitudinal movement.

15. In a pencil sharpener, the combination of a'plurality ofopposed knives, cooperating means for imparting a converging motion to said knives toward the sharpened end of said pencil, and means engaged by said knives forimparting a motion to said knives for bringing different cutting edges of sald knlves successively i into 'operatlve relatlon 16. In a pencil sharpener, the combination of a plurality of opposed rotatable knives,

cooperating means for giving said knives a converging longitudinalmotlon in a direc- 'tion toward the point of the pencil, means forautomatically rotating said knives while the same are out of contact with said pencil and as they approach oneend of their longitudinal movement. y

17. In a pencil sharpener, the combination of a plurality of opposed rotatable knives,

cooperating means for reciprocating said knives in pathsconverging toward the point of said pencil and means for automatically rotating the said knives while the same are out of engagement with said pencil and as they approach the end of their longituwith respect to said knives.

19. In a pencil sharpener, the combination 7 with a pencil holder and a pencil support, of

[a plurality of knives adaptedto engage a pencil in said support, cooperating means for advancing said knivesin paths converging toward the point of the pencil on, the cutting stroke, and means for lifting said holder away from said support on the return stroke.

20. In a pencil sharpener, the combination 5 with a pencil holder and a pencil support, of

a plurality of knives adapted to engage a pencil, cooperating means for advancing said knives in paths convergingtoward the point of the pencil on the cutting stroke,

and means for lifting the pencil out of en- 'gagement with said support and for-rotating the same on the return stroke of said knives.

21. In a pencil sharpener, the combination with a cutting knife and means for reciprocating same, of means operative to re-,

volve a pencil, and automatic means for causing the knife to remove a progressively lighter chip from the pencil after each revolution of said pencil.

22. In a pencil sharpener, the combination with a knife mounted to reciprocate in a fixed plane, of a support for a pencil, and v I cooperating means knives in paths slanting toward the end of automatic means for causing the knife to I remove a progressively lighter chip from the pencil by gradually decreasingsteps during the operation.

23. In apencil sharpener, the combination with a knife mounted to reciprocate in a fixed plane, of a fixed support for the end of the pencil and automatic means for causing the movement of the end of the pencil into the cutting path of the knife by gradually decreasing distances, the point of the pencil being held against further advancement toward the cutting plane when the sharpening operation is completed.

24. In a pencil sharpener, the combination with a plurality of opposed cutting knives and means for givingsaid knives longitudinalmovement in relation to the pencil, of a pencilsupport having an internal conical surface for supporting said pencil, the angle'of which is greater than the angle of the point of the pencil when sharpened.

1 25. In a pencil sharpener, the combination with plurality of opposed knives and to reciprocate said the pencil, of a "pencil support having an internal conical surface for supporting said pencil during the sharpening operation, the

, taper of said surface being greater than that formed by the reciprocate.

26. In a pencil sharpener, the combinapaths in which said knives tion withapencil holder, movably mounted, of a knife, means to reciprocate said knife substantially longitudinally with respect to said holder, and'means actuated by said first mentioned xmeans for moving said holder longitudinally and for rotating the same.

27. In apencil sharpener, the combinationwitha pencil holder yieldingly mounted, of a. knife mounted to reciprocate'with respect to saidv holder, means for automaticallyrotating said knife, and means moving said holder longitudinally, as the said knife approaches one end of its reciprocation.

' 28. In a pencil sharpener, thev combination with a pencil holder yieldingly mounted, of a fixed support for the end of the penoil, a knife, means to reciprocate said knife,

and means actuated by said means for reciprocating said knife for moving said holder longitudinally and for'rotating the same.

-29. In" a pencil sharpener, the combina tion with a tray and a vertical casing supported thereon, of a support for the pencil within'said casing, said casingbeingprovided with openings in the sides thereof adj a'cent the bottom of the casing, and with inclined surfaces leading from beneath said pencil holder downwardly to said openings whereby chips from the pencil are carried through the openings and into the said tray.

30. Ina pencil sharpener, the combination' ith'a fixed hollovv supportadapted to receive the end of a pencil, of, a rotatable yieldingly mounted holder .for said pencil,

' fcoaxial with said support, a knife, means to for moving said holder longitudinally and for rotatingthesame.

31. In a pencilsharpener, the combination with a casing, of a head Within said casing, said head being secured at one end adjacent oneend of said casing and converging toward the other end of said casing and terminating in a conical support for the pencil point, the interior of said lieadrbeing" pro vided With an annular shoulder, a tubular pencil holder arranged within said head. and concentric therewith, said casing being provided with an aperture concentric with said holder, an annular flange secured to said holder concentric therewith Within said casing, said flange being adapted to rest upon said annular shoulder, and said flange being provided uponthe surface against said shoulder-With a'ratchet, a spring to hold I said flange yieldingly in contactwith said shoulder, a knife mountedflto reciprocate'to with said ratchet and actuated by the movement of said knife to move longitudinally andt'o rotate said holder. 1

82. In a pencil sharpener, means for holdinga pencil, a pair of knives located on op p'osite sides of theaxis of 'the'pencil and means to cause said knives to reciprocate in substantiallyright lines converging toward the point of the pencil to. take substantially equal cuts simultaneously of thepencil.

I. 33. In a pencil sharpener, means to hold a pencil, a pair of rotatable knives mounted i on opposite sides of the axis of the pencil,

,means to move said knives in pathsconverging toward the point of 'the'pencil to cause said knives to take substantially equal'cuts simultaneously on opposite sidesof thepencil, means to retract said knivesa ay from the .point of the pencil,'and means to rotate said knives as theyrecede from the point of 1 the pencil. I 7 pencil sharpener, the; combination with a pencil holder, movably mounted, of .a knife, means to move said knifeto and fro substantially longitudinally ith respect to said holder, and meansvactuated by said first 'IHGIliZlOIlGd means for moving said copies oi this patent may be obtained for five cents each, by addressing th I t Y j i Washington, D. G. I

t nally and for rotating, thesame.

forward after the turning thereof. sharpen the pencil, and pawl engaging on opposite sides 1 same. I

- 35; In a pencil sharpener, the combination With, ape'ncil holder yieldingly mount- I ed, of a fixedsupport forithe QIIClIOf the p,en-. oil, a knife, means to'm ove said knife to and fro, and means actuated by said knifemoving means for'iiioving'said holderlongitudi- 36.1n a pencil sharpener, the: combination With a fixed hOllOW support adapted to receive the endof a pencil, of arotatalole yieldingly mounteds holder for said pencil,

coaxial with said'supp'ort,a knife,means to 7 move said knife to and fro,and means actuated by said knife moving means for moving said holder longitudinally andfor'rotating thesa'mej p, v ,1 to

v57. A pencil sharpenerco nprisinga pen- ,cil supporting structure, a. knifemounted thereon and movable to and fro, a pencil holding sleeve, pawland ratchet mechanism. operable by'the movement of said kn fe in one direction to simultaneously move said pencil holding sleeve rearWardly-and tore volvefit, and means for moving said sleeve 38. A-pencil sharpenercomprising a supporting Structure, a pencil holder fixed thereto, a clamping sleeve ,slidably engaged witl said holder, a knife mounted onl's'aid holder and movable to and fro, andicooper ating elements carried by said knife and a the pencil sleeve. longitudinally andef'rear- W'ardly and to revolve it; f Intestimony whereof Wehave hereunto set our hands this QGthdayofJanuary, A. D. 1907'. H i T ERIC BLVAN NQRDEN.

HENRY'P. HAMBURG. 7 SAMUEL" S; HARPER,

-ll itnessesto the signatureofEric iBi-v .gNord'enz i I if s- 'FRANK MURRAY, p 'DAVIDI. Vvioks."

WVitnesses to the signature of Henry P. Hamburg: c f

MAGNUSJ. FANNING,

E IsAAoxVAii.YoHANNAN;- f e v p Witnesses to the signature. of Samuel f Harper: v Y

W 5 (1A. Wrriiiin, 1:

; ,ALSTON B. Mouil'roN;

e Commissioner of Patents,

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