US1485073A - Pencil - Google Patents

Description

Feb. 2G, 1924.

1,485,073 c. J. FUNK PENCIL Filed Aug. 27. 1921 i) -li CEARLES J. FUNK, Gl CHECAGO, LLINOIS, SSIGNOR T0 THE WHLjCOMPANY, 0F CHICAGO, 3.2211519143, A CGRPORTION OF DELAWARE. n

ruiten..v

.application filed August 27, 3321. Serial No. 496,122.

To @ZZ whom it' 'may concern:

Be it known that l', CHARLES .L FUNK, formerly a citizen oi Austria-Hungary, having declared intention of becoming citizen of thevUnited States, a resident ot i'lhicago, in the county of Cool; and State illinois, have invented certain new and useful improvements in a Pencil, oi' which the following is a specification. 4

My invention relates to improvements 1n ncils and has special reference to pencils the hind adapted/for projecting the leads the point is worn, away. f The object of myinv/e/ntion is to provide a. penal in Whiehtlie leads can be pushed io vard as it' Wears" out for-renewing the point; which pencil shalltbeot very simple construction comprising 'eiv parts easily produced by the usual ananudcturing processes. in other Words is my object to 4urovide a pencil of the renewable lead type iniich can be manufactured at a low cost u sold for a relatively small price. Many care desirableand advantageous features of lnstruetion and operation will appear from the following description.

lily invention ivill be more readily understood by reference to the accompanying drawings forming part or" this specification and in which:

Figure l is a longitudinal central sec- L i view of a pencil made in accordance my invention; lgui-e 2 is a fragmentary sectional View v l .n on the line 2 2 of Figure l;

Figure 3 is a fragmentary longitudinal. sectional, vieja' taken on the line 3 3 of Figure l;

Figures and 5 are transverse sectional 4ieivs on the lines d and 5 5a respec- Y ely of Figure 2;

urel S is a transverse sectional view ie line 6 6 of Figure il;

Figure l' is a central longitudinal sec- .ional view similar to Fig. 2 and showing a slight modiiication' of my invention; and Figure S is a transverse sectional view on 'ne line 8 8 of .Toigure in said drawings", l illustrates the body of the pencil which can be of any suitable material such as hard rubber, Wood, etc. r-fliis handle l is provided with a eontiuuous central bore from end to end, the por-A tion 2 thereof at the forward or point end being relatively small and the remaining c. Le

p OI portion 3 thereof extending to the rear or upper end being larger in diameter. U on the forward end of the body l I remova ly?.- mount a tapered or coned point member or shell l preferably made of tubing having a de; relatively thin Wall and l reduce the for t Ward end 5 of the handle of the body memi ber as shown at 6 to receive the upper or rear, end of the point member 4 providing an annular shoulder 7 against which the es rear-portion 9 of" the point member which engages the reduced end 5 of the 4handle member abuts. I make said portion 9ct straight cylindrical form and make the two parts of such relative diameters that the 70 point member 4 can be readily forced upon' the fdrward end of the handle member and.

" "ir/be' retained securely thereon by fric- 'Vithigl the point member and secured i5 permanently thereto I provide a tubular guide l0r for the renewable vlead 11. This tubular guide is of a diameter to permit the lead ll to slide freely through the guide. 'lhe guide extends into the coned point l 80 from the rear end and its forward end l2 contacts with the inner surface of the coned point close to' its forward free end and is thereby held centrally in the coned point.. To hold the rear end of the guide 10 cen- 85 4trally of the coned point l provide a disk member 13 having a central opening to reoeive the tubular guide and of an outer diameteit'to lit snugly Within the cylindri-f Vcal portion 9 of the coned point and in areo ranging the several parts I force the disk member 13 inwardly .to the bottom of the .cylindrical part 9 of the point until it contacts with the larger end of the coned portion of the point and l tix it in such posi- 95 tion with the tubular guide extending through the central opening by soldering orotherwise rmly fixing it in place. The tubular guide extends through the small bore 2 of the handle member a sull'icient 10o distance to receive a lead 11 and is of suitable extra length for receiving and guiding a suitable pusher. For pushing outfthe. lead and holding it in its adjusted position, I l provide a rod l5 of asize to readily pass 105 through the tubular 'guide l0 and l provide the rod with transverse ridges preferably by externally threading it. For the purpose of holding the threaded rod 15 and the lead 11 against being pushed into the' 11o Liri handle in ilse9 provide ineens for engaging the thread on the rod. This means cornprises an inwardly extending spring tongue 16 formed of a. portion of the 1avail ot' a, tubular member l? surrounding the inner end ot the tubular guide and tting snugly `vithin the smaller portion 2 or the contrai here of the handle. This spring tongue is bent inwardly at its free end 18 to engage the threads of the rod l5, es liest shown in Figures 2 and 3,. when 'the point e with the tubular guide and rod l5 are entered into the handle Afrom the forward end, es shown in Figure 3. When the parte are separated the spring tongue i6 springs ontwardly and disengages the threads so that the rod 15 can be moved freely longitudinally in the tubular guide l0.

Preferably provide the tubular guido l0 with a transverse cut or opening 19 to receive the bent end portion 18 of the spring tongue. The tube 17 of which the spring tongue 16 forms e part, is secured to the tubular guide 10 by soldering orotherwise For the purpose oit providing sucient friction for holding 'the lead 1l against falling# out and against rotation While being used, I split the extreme point 20 of the coned delivery point las shown at 21 adapting the end 20 to be closed sufficiently to canse the lead to slightiy expand same as the lead is forced through the point 20. l prefer to add to this rictionei holding of the lead by splitting the forward end 12 of the'tubular guide 10 by means or" a. longitudinal central cut- 22 and l form the two parte, thus provided, to provide between their ende inwardly extending rounded projections :2.23 adapted toA be pressed into Contact with the lead by the Contact of the tree end portions of the parts thus formed with the inner snrtace or" the point 4. rllhis construction allows for considerable variation in the diameter of the lead l1.

As so tar described, improved pencil is an operative device bnt'ior the purpose of providing a suitable magazine tor extra leads l provide a tubular guide 25; Within the larger portion 3 of the handle for the rod 15 when the saine is entered hut a short dis tance into the tubular guide l0 and l se cure the tubular guide 2i in position in the larger portion 3 ot the-bore by means of a head 25 iitting within the bore 3 and ai ranged at the inner end of the guide and a second head 26 arranged` within the larger portion 3 .of the bore and farenong'h from the rear end 27 of the handle to Aforni a magazine space 28 deep enough to contain the extra leads around the guide For closing the/rear end oi the handle l provide a short thin walled tubular meniher 29 mounted upon the rear end et' the handle member and'edapted to receive and hold a cylindrical eraser BO. The heads 25 rentrer@ 26 ere iixed within the larger foortion 3" of the 'more and the tubular guide 224i is tired in the heads. t is to he noted that the rod l5 is tree Within the tulonlnr guide Qd.

in the use of my improved pencil when the lead il Wears down so that it is required to torce it 'forwerdly in the tubular guide l0 to project its Wearing end sudiciently, the point is Withdrztwn from. the handle end the rod lo, being at such time free rorn'the splineA tongue 16, is pushed :tor- Ward through une tubular guide l@ to pio ject the lea-d the desired amount. and then the lpoint if is repli-seed Vupon-the handle, the replacement causing the 'spring tongue i6 to engage in the threaded siirfece of the rod l5 end hold the saine egeinst rela-- tive iongitudinal movement, in other words, holding the lead against being forced beck into the handle.

lin Figures Z and 8 i here illustrated a simple ineens for projecting theleed tor- Werd Without the necessity of removing the point i troni the handle l. This means con siste in providing a llatteneni heed or end 3l on the threaded rod i5 melting the tnlniler ,guide 2e oi ovai form to prevent the` relative rotation oi. the guide and the rod,

it will he obvious that by means of this construction con project the lead rafter the point has been placed upon the handle loyreletively rotating the handle l and the point, d whereby the threaded rod'l will he forced longitudinally of the device by reason of the engagement oi the epring tongue 16 With the screw surface of the rod 2.5. i t

As many niodicetions oi my invention will readily suggest themselves to one skilled in the art, l do not iiniitor contine my inm vention to the specific detaiis of construction herein shown and desc i claim:

l. in a pencil oi the kind descrihed n handle member, a point member adapted to he removably mounted upon the handle member, a. tubular 4iride carried hy the point member adapted to enter a central bore in the handle member, an aoutznent rod adapted to enter the rear end of the tubular guide, the rod having a transversely idged surface, and means erricd by* the tubular guide adapted to engage the ridged surface of the abutment rod when the 'point is on the handle and prevent the relative longitudinal movement oi the abutment 2. ln e pencil of the kind described e. handle meinte-r haring e centrel here, e point inernlier adapted tov 'be renioyebly mounted on the handle member, a eentrnl tubular guide carried by the point inernher and adapted to be projected into the centred here, a threaded ahntr rod. adapted to be projected into the l lli? ' within the said bore, the tubular memberl provided with a transverse slot adjacent rod retaining member adapted vto be engaged with the' threaded surface of the abutment rod when the point is placed upon the handle member.

3. In a pencil of the kind described a handle member having a relatively small central bore at its-forward end, a point member adapted to be removably mounted on the forward end of the handle member, a tubular guide hfor the lead carried by the point member and adapted to be projected to its inner end, aspriplg tongue carried by the tubular member having its free end formed for entering through said slot, a threaded abutment rod for pushing the lead vthrough the tubular guide adapted to be engaged by the inwardly projecting end of the spring tongue by the contact of the tongue with the wall'of said relatively small bore'when the point is mounted upon the handle. y

4. In a pencil of the kind described a tapered point member, adapted to be re movably mounted upon`a handle, a tubular guide for the lead centrally mounted in the point member, the forward end of the guide projecting close to the forward end of the point, said forward end of the guide having Y. a split end the two portions thereof formed to produce inwardly extending rounded pro# jectons for frictional engagement with ythe lead, as and for the purpose specified.-

5. In a pencil, in combination, a handle member having a central bore, a point member adapted to be removably mounted in the handle member, a tubular guide member carried by the point member, and a threaded abutment member, including a resiliently active member on the tubular member normally in disengagement with the abutment member but activeunder the compression force attending the uniting of'the pointv member to the handle member to cause engagement of the abutment member bythe resilient member whereby through relative lrotation of the handle and point members the abutment member will be advanced or retracted.

6. In a pencil-of the kind described, a handle member having a central vbore a point member adapted to be removably vmounted upon the handle member, a tubular guide forthe lead carried by the point memof August, 1921.

ber, 'an abutment rod adapted to enter the.v

inner end of the guide for adjustingthe position of the lead, means carried by the tubular guide for engagement with the abutment rod to prevent relative longitudinal movement of the rod when the point is mounted upon the pencil, and a centrally fixed tubular guide in the handle for receiving the free end of the abutment rod,

said lixed tubular guide extending to the rear or upper end of the handle and a head within the bore of the handle in which the fixed tubular guide is held to provide an annular space at the upper end of the pencil as a magazine for eXtrav leads and means for closing the outer end of said magazine.

7.l In a pencil of the kind described a handle member having a central longitudinal bore, a removable point member adapted to be mounted upon the handle, a tubular guide for the lead carried by the point member, an externally threaded abutment rod adaptedto enter the inner end of the tubular guide, means carried by the tubular guide for engagement between the adjacent threads of the abutment rod when the point is mounted on the handle, and means carried by the handle for preventing relative guide for engagementv betweeny the adjacent.'

threads of the abutment rod when the point is mogmted on the handle, and a fixed tubular guide in the handle member for .receiving the free end of the abutment rod,

said fixed guide and free end of the abutment rod being formed to prevent relativey rotation whereby when the point member is rotated on the handle member` the' abutment rod can be ject a lead. v

Signed at Chicago, Illinois, this 19th day forced forward to proj CHARLES. J. FUNK.

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