US472420A - Pencil-sharpener - Google Patents

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(No ModeL) M. WOBN.

UNITED STATES PATENT OFFIoE.

MABY E. oBN, o PHILADELPHIA, PENNSYLVANIA.

PENoL-SHARPENER.

Be it known thot I, 1IAE1 E. vVOBN, of the oity nd oonnty of 1 hi1de1phia, and Stte of 1 ennsy1vni have invented neW nd IIn proved I eI1oi1-Sharpener, of Whioh tlle fo1 1OWing is a fu11, oleor, nd exoct deSofiption.

The invontion re1teS to slate-penoil Shorpeners of Sman and oompaot form, Suitoble for orryio in one,S pooket of in a deSk oI' portable Sohoo1-boX; and the invention oon SiStS in the novel oonstruotion deSoribed here inafter, and denned in the o1hnS.

Beferenoo iS to be had to the aooomponying in whioh siInilar letterS of referenoe indiote ooTreSponding )rtS in 11 the gureSl Fignro 1 is a plon vieW of penoiLShoroener oonstruoted in aooordanoe vith ny invention. ig. 2 iS a tronsverSe Seotion 011 the line o3 i Eig. 1. 1 ig. 3 iS 1ongitudinol oentrol seotion throngh the reolovable oHp, and Eig. iS a perSpeotive vieW of the Shrp ener.

The body of ny in1proved sharpene1 iS oom poSed of a blook preferobly of Wood, hv

ing rodoced in itS op eT Side a lon itudino1 TeoeSS o, the SideS C of vhioh are vertioaJL In tho feoeSS thos foTmedre held the Shrpening outterS B, Whioh oonsiSt of round threaded rods, the threadS being quite fine and having a keen edge. The outterS ore held in the blook A by friofion, their thredS interIneShing vith eaoh other and oonfaoting Snugly ginSt the reSpeotive vortio1WHS of the reoeSS o. vVhen in placein the blook, the ontterS are held oginSt fofory movenlent nd fonn Solid brading Snrfaoo, ogainSt vvhioh the penoil is rubbed.

A Inovb[e oap 0 iS provided, having Side angeS o and end flangeS o, adapted to the blook A, and an opening o iS formed longitlloiIlally therein for pern1itting entranoe of the ponoi1 to the outterS, and the Side ngeS o ore formed vvith openingS 0 oolpleInentary to the longitudinol opening o for per 111ittingthe penoil to be projeoted beyond the ontterS and for pennitting eSope of the pen oiLduSt,

The oap 0 iS n1ade ren1ovble, being held by the friotion of itS flongeS ogainSt the blook A, and When the oop and outterS are reInoved the lotter moy be prtilly rotated for re senting nev onttingSurfaoe. In the event of the threadS beooming ologged and Hed vvith doSt the lttef Inay be Teadily reInoved either by holding the ShTpenef to the n1outh nd blovvin the breath u on the same or b tapping the Sharpener npon the hnd orothef oonVenient objeot.

vhen the outterS 1'e oonSiderb1y orn at one portion, it Will be deSirble to hold in proper poSition that portion whioh is n10St Servioeable, nd this I provide for in xing the ontterS ginSt rotary Inoven1ent. Should they be aHowed to rotate ffeely nd the m jor poftion be Worn ond unServioeable, it iS evident the servioeable poftion ,ou1d not re tain poSition to be otilized.

fIoving thos deSoribed my invention, Whot I olaiIn aS Ilevv, and deSire to seoure by Tet teI'S Ptent, iS

1. AS neW aurtiole of Inan11fotnre, pen oil-ShofpeneT oo111 )rising reoeSSed body and thfeaded outters in the sid reoeSS, Said out terS oontaoting vvith the Sido vvoHS of the reoeSS aJI1d interIneShing vC ith eaoh other throughout their entire length, aS Set forth 2. AS a new rtio1e of mannfooture, a e11- oil-Shrpener oonSiSting of blook fornled vvith reooHS, two roond threaJded ontterS re Inovably fitted in SaJi(1 reoeSS and in IIeSh vvith eaohother, nd renTovablo op fitting Sid blook and formed With a longitudinal opening fof oxpoSing the ootteTS, SubStantiaHy oS deScribed.

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