US961392A - Pencil-sharpening machine. - Google Patents

Description

A. s. WHEELER. PENCIL SHARPENING MACHINE.

APPLICATION FILED MAE. 9, 1909.

0m. 7@ www l Q H ltlhllllilril@ STAQES T @FFQE ARTHUR S. WHEELER, 0F BGSTON, MASSACHUSETTS, ASSIGNOR T0 F. S. WEBSTER COMPANY, OFBOSTON, MASSACHUSETTS, A CORPORATION OF MAINE.

PENCIL-SHARPENING MACHINE.

Specification of Letters latent. Paihgnjd Jun@ 1ct, 910.,

Application led March 9, 19052. Serial No. 482,342.

To all whom i moy concern:

orifice and is adapted to receive a circular Be it known that I, ARTHUR S. lVnnELnn, cutter d, having cutting teeth on its inner of Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in Pencil-Sharpening Machines, of which the following is a specilication.

This invention relates to pencil-sharpening; devices and is an improvement upon the pencil-sharpeni11g device Shown in' Letters Patent- #648,S)00, dated lvlay l, 1900.

lt has for its object to provide a pcncllsharpeningr device with an improved adjustable stop arranged opposite the inner end of and in alinement with the pencil-receiving orifice and adapted to extend under the cntter, against which the end of the lead of the pencilis adapted to bear, to thereby limit the inward movement of the pencil while it isy being sharpened; also to provide improved means t'or adjustingV the stop axially;

also to provide means lor limiting the move- 4 ment ot' said stop 1n opposite ways.

Figure l, is a Iside elevation ot a pencilsharpening device embodying this invention. Fig. 2, is a front view, the hood beinfr removed. Fig. 3, is an enlarged longitudinal vertical sectional detail7 showing particularly the adjustable Stop involving this invention. Fig. '-l. is a plan view of the parts shown in Fig. I3. Fig. 5, is a detail of a portion of the head, showing particularly one ot' the entrance notches to the circumferential 'groove therein.

rThe general construction of the pencilsharpening device is the AHaine as shown in the aforesaid patent. lt. comprises a stand A having a concave-convex or cup-like head and a foot said head haviuici,r an elongated bearing r1. A circular hood H is. adapted to tit on the head, it having' a hollow base H.

A rotatable carrier is provided for the pencil or other object. to he sharpened or pointed, comprising a body-portion c, having at one end a journal-portion c". adapted to be Supported by the head A, and made long enough to extend through the elongated bearing of said head and to receive upon its outer end a crank C. Said body-portion c has at its opposite end a cylindrical port-ion c2, having a center hole extending' longitudinally through it, and into the body-portion for a considerable distance, to form a pencil-receiving orifice. Said body-portion is formed with a recess which intersects said side or face adapted to engage a portion of the pencil projecting beyond the perimeter.

of the orice.

The shaft d bearing the cutter d has its bearings in the body c, and a pinion (Z2 is secured to said shaft which engages an annular (rear AX formed on or secured to the inner tace of the head, so that when the carrier is rotated on its axis the disk a', will. be carried around therewith and also rotated on its own axis. rlhe shaft d is arranged obliquely to the axis of the carrier, so that the cutter d will occupy an oblique position with respect to a pencil contained in the pencil-receiving orifice to engage the end thereof at an angle for the purpose of sharpening the same.

The journal-portion c* is herein shown as formed with a. cylindrical hole through it longitudinally from end to end which is arranged in alinement with the pencil-receiving oritice, the inner end of said hole openinginto the recess in the body of the-carrier. A cylindrical bar f is contained in said hole which is made long enough to extend therethrough and to project therefrom at each end. The inner projeotingi` end of said bar is slalobed oil' at an angle oblique to the axiS of the carrier, or is shouldered, as at f', and its reduced end-portion thus formed extends beneath the cutter and terminates close to the inner end of the pencilreceiving orifice, and extends over the lcenter of said orifice so as to be engaged by the end of the lead of the pencil to be sharpened, serving as a stop therefor. The outer end of said bar is reduced in diameter and has arranged on its reduced portion a sleeve g, which is free to turn thereon, the end of the bar being upset or riveted to hold said sleeve in place. Said sleeve is externally screwthreaded to engage internal Screw-threads formed on the interior of the journal-portion, and is provided at its outer end with a lrnurled head by which it may be turned. Rotary movement of said sleeve acts to move the bar axially.

My invention is not limited to making the stop in the form of a har as here shown, or to providing it with a. screw-threaded sleeve tor the purpose of adjusting it, axially. The bar is out away at e point intermediate its length, as at f?, and a small screw ff extends through the sid tion, the inner end of cess in the bar to th me'nt of said bar in Having thus descr l w and desire ters Patent is:-

1. In a pencil-Shar e of the journalor- I through said centerwhich enters sai reereby limit axial moveopposite ways.

y invention, what to secure by Letpening device, a rotaer having a central lon a recess for t e cutter ifice at an angle oblique carrier, and a journalprovided with acenterongitudinally, sald orifice,

ner end of which le oblique to the e reduced portion to the axis of the ortion at one end le through it l in alinementv with ran ed in said hol oi at an an axis of the thus formed neath the cutter inner end and extends o said orifice, to. be en the pencil, substantial 2. In al'pencil-sha table carrier hav receiving-orii carrier and t cts into said recess `beinates close to the the center of` aged b\y\the lead ofl y as described. rpening device, a rotamg a central lon ,'tudinal ce and ay recess for t orifice and a journalorrovided with a center ole dinally arranged'in alineriice, a bar 'arranged in ournal-portion, one end of and projects intosaid reutber and terminates closel of said orifice, means for r axially, and means for movement of said bar in opsubstantially as described.

sharpening device, a rotaing a central longitudinal and a recess for the cutter orifice, and a journalorrovided with tion at one'end p through it longit l ment with said o said .hole in th which is reduc cess beneath the c to the ixmer end djustngsaid 'ba limiting axial posite ways,

In a penciltable carrier hav receiving-orifice mtersectmg said tion at one en a centerole with said orifice, a bar extendingv which extends into said recess beneath the cutter and terminates close to and in front of the inner end of said orifice, and rotatable means connected with the outer end of said bar and engaging the journal-portion for adjusting the bar axially, substantially as described.

4. In a pencil-sharpening device, a carrier -having a longitudinal receiving-orifice and a recess for the cutter intersecting said orifice, and a journalortion at one end provided with a hole t rough it longitudinally arran ed in alinement with sald orice, and a ar extending through the hole in said journal-portion, the inner end .of

hole, the inner end of 45 which projects into said recess and terminates close to the inner end of said orifice, and a screw-threaded sleeve arranged on said bar, at the outer end thereof, having a knurled head, the screw-threaded portion of said sleeve engaging internal screwthreads formed on the interior of the journal-portion, substantially as described.

In a pencil-sharpening device, a carrier having a longitudinal receiving-orifice and a recess for the cutter intersecting said orifice, and a journal-portion at one end provided with a cylindrical hole through it lon itudinally, arranged in alinement with sai orifice, a cylindrical bar arranged in said hole in the journal-portion, the inne-rr end of which is -slabbed off and projects into said recessA and terminates close to the inner end of said orifice,- and means for adjustin' said bar axially, substantially as describe In testimony whereof, I have signed my name to thisspecification, in the presence of two vsubscribing witnesses.

' ARTHUR S. WHEELER. Witnesses:

B. J. NoYEs, H. B. DAVIS.

Images