US3101074A

US3101074A - Marking pencil

Info

Publication number: US3101074A
Application number: US23173A
Authority: US
Inventors: Walter B Spatz
Original assignee: Individual
Current assignee: Individual
Priority date: 1960-04-19
Filing date: 1960-04-19
Publication date: 1963-08-20
Anticipated expiration: 1980-08-20

Description

Aug. 20, 1963 w. B. SPA-rz MARKING PENCIL Filed April 19. 1960 JNVENTOR. fw 75e B. 5p/WZ thereby in a` forward direction within the barrel.

Unite L States Patent 3,101,074 MARKING PENCIL Walter B. Spatz, 11182 Sunset Blvd., Los Angeles 49, Calif.

Filed Apr. 19, 1960, Ser. No. 23,173 13 Claims. (Cl. 1Z0-4B This invention relates to marking pencils and more particularly to an improved marking pencil device having a self-contained sharpener therein with improved means for feeding the pencil core to the Sharpener. t

Marking pencil devices employing soft crayon or waxlike cores used for marking china and for cosmetic purposes such as eyebrow pencils, which pencil devices employ feeding mechanisms to feed the pencil core from a case, are well known to the art. It is also known to the art to employ various types of sharpening mechanisms which are contained within a cap forming a part of the case enclosing the pencil core. This is necessitated by the fact that such pencil cores are of soft wax-like substances which will not retain the type of point required for marking or cosmetic purposes. Such prior art devices possess certain disadvantages, however, particularly disadvantages due to the relatively soft nature of the pencil core which softness further increases with a rise in temperature. Accordingly, due to this characteristic of the core, continuing stresses imparted thereto will cause damage or deformation of the core, or clogging of the device. In addition, prior art devices are in general rather cornpleX structures which do not lend themselves readily to mass production. Although not particularly limited thereto the present invention is specifically designed for and has its major utility as an eyebrow pencil, and accordingly, the invention will be described throughout in connection with such use.

In co-pending application `Serial No. 530,993 led August 29, 1955 by Walter iP. Spatz entitled Marking Pencil, now Patent No. 2,941,508, there is disclosed and claimed an improved construction for eyebrow pencils which utilizes a one-way latch device to provide a forward movement of the slidably splined pencil core into a conical Sharpener positioned within the cap for the device, such that when the cap is rotated on the barrel enclosing the pencil core, the latter is brought to a point. Essentially, the device of the co-pending application includes a barrel with a tubular support therein which is actually a part of the barrel. This support is adapted to receive the pencil core which is propelled in a direction forwardly of the barrel by a feeding means that includes a pusher rod and a spring bearing thereagainst. A one-way latch device in the form of a U-shaped latch springhas an` direction.

Mice

the barrel -an end portion of the cap operatively moves the operating member to displace the elongate leg in a rearward direction and free the intermediate portion of the latch from the pusher rod and allow the spring to move the rod and pencil core in a forward direction. Rotation of the cap causes the Sharpener to form a point on the pencil since the spring constantly urges the pusher rod and pencil core forwardly against -the Sharpener until the point has been completed. When the cap containing the Sharpener is removed from the barrel, as when the pencil is to be used, the elongate` leg of the latch is free to move forwardly of the barrel to allow the intermediate or base portion of the latch to resume its inclined position and grip the pusher rod to prevent ,the spring from further propelling the rod and .the pencil in a forward Accordingly, itcan be seen that the pencil core is released and moved forwardly` into the Sharpener whenever the cap is mounted thereon, and that the pencil core can be pointed after the cap is oriented on the barrel. Although this prior construction is 'eminently satisfactory in most respects, the present invention provides an improved device of simplified construction which relieves the pencil core of impressive forces when the sharpening 1s not occurring.

It is an object of the present invention to provide an improvedmarking pencil device having a Sharpener positioned within the cap thereof which Sharpener ,can be employed` to sharpenthe point of the pencil core selectively whenever desired or required.

It is another object of the present invention to provide an improved marking pencil device employing a selffeeding mechanism which mechanism will feed the pencil core to the Sharpener only upon express actuation and which will maintain the` point of the pencil at a proper position for use.

Another object of the present invention is to provide a marking pencil device of the type described wherein the pencil core is fed forwardly to a `required position but whichF has no compressive forces thereon when the pencil core is not being sharpened. t Accordingly, the relatively soft marking material forming the pencil core is `not-subject to damage due to stresses imposed'thereon opening through the base of the U with the pusher rod extending therethrough. This latch is of the self-energiz- `ing type and is adapted to grip the pusher rod to prevent the spring from moving the rod and the pencil encased The latch spring is released from the pusher rod whenever an operating member mounted on the `barrel is engaged by the` cap of the marking pencil, which capmis adapted to be rotatably mounted over the forward portion or nose of the barrel. The operating member moves one leg of the U-shaped latch spring to move thefbase portion of the latch spring containing the opening from an inclined v @position to a position moreat right angles to the axis .ofthe pusher rod and pencil core,.so that the peripheral edge `of the latch` on opposite sides `of the `opening are y freed fromthe rod, `thereby allowing the springytourgey the rod and the pencil core engaged therebyin a forward i direction. `Forward movement placesthe pencil point outQf th eOrWard nose of lthepbarrel.,and` `withinaysharp- Gener mounted'in the cap.` Wllen` thefcap is placed over 1 t when the stresses or a combination of stress and tempera-` ture would otherwise damage the material or cause it to be deformed within the pencil case.

A still further object` of the present invention is to provide such a marking pencil device which can be formed economically and can be mass produced utilizing eiiicient and economical materials throughout;

The novel features which lare believed to be characteristie of Athe present invention both as to its organization and method of openation, together with further objects and advantages thereof, will be better understood from the following description considered in connection with the accompanying'drawing `in which a presently preferred embodiment of the invention is illustrated by way of example. It is to be expressly understood,` however, that the `drawing is for the purpose of illustration and description .to FIGURE l showing the operative parts of4 the device A in the` non-operative `,or fat-rest position at which theA pencil t core v ism'retained tlielatch `means Afrom bearing and spaced tpngittidiliany extending slot `11 `fextems fram-the for? warlly facing shoulder Stijto the'rearward endSS of the [tion into a sharpening position, as described more fully hereinafter.

Referring now particularly to FIGURES l, 2, 5 and 6, the elongate tubular support member is a single member formed to provide the nose piece 24 mateable with the cap section C, and the latch means support section Z5 which is positioned within the outer barrel at the forA ward portion thereof. The nose .piece 24 extends a substantial distance forwardly of the forward end 12 of the outer barrel and is generally cylindrical with a circular transverse cross-section of uniform first diameter 40 extending from the forward end 41 of the nose piece to a longitudinal position slightly forward of the forward end 12 of the outer barrel. At a position proximate `the forward end 12 of the outer barrel, but'spaced forwardly thereof, the tubular support member is increased indiameter to a second diameter 43 substantially greater than the first forward diameter 40 of the nose piece but less than the inside diameter 44 of the `outer barrel. The second diameter 43 occurring at the longitudinal section proximate the forward end of the barrel is of a predetermined diameter which' is less than the diameter of the inner barrel by an amount suiiicient to allow the insertion of an actuating portion of the cap section C. The rst forward diameter 40 and the second diameter 43 of the elongate support member are joined by a tapered circumferential wall 46 which ac-ts as a vguide surface for insertingthe cap cylinder over the n ose piece and into the forward end of the outer barrel, as described more fully hereinafter. Extending rearwardly from the portion of second diameter 43, the elongate support member increases to a third diameter y47 which is substantially equal. to the inside diameter of the outer barrel. The junction of the longitudinally extending section of second diameter and the longitudinally extending section of maximum diameter 47 is defined by a transversely extending forwardly facing shoulder Sti, which shoulder Si) is spaced inwardly from the outer end of the barrel to define an annular space `51 closed at one end by the shoulder 50 and bounded by the periphery of the support member at vthe second diameter 43 thereof and the inside diameter 'd4 of the barrel.

Spaced rearwardly from the shoulder Si) the support ymember is again reduced to a fourth diameter 54 to de-ne a rearwardly facing transverse shoulder 52. The portion of the-member at the diameter 54 extends from the shoulder 52 to `the `rearward end 55 of the elongate support member 2t).M The fourth `=diameter 54 is slightly less thannthe inside diameter ofthe barrel, the difference in diameter being adapted to accommodate the insertion of the elongate support member 20 -atr the rearward portion thereof into a thin-'walled retaining `sleeve Iiwlhich extends from a position spaced from the rearwardly facing shoulder 512 in contact with a leg of the latch spring, las described hereinafter, to a longitudinal position proximate the forward end 22 of the sleeve 14 from the rearward end 55 of the support member. i v

As shown Iparticularly in FIGURE 6, rst andsecond diametrically opposedlslots are formed in the support member Vextending fromthe rearward end thereof. The Vfirst and second slots are of different lengths to` accomi mcdate the two legs` of the one-Way latch `springu; The upper o r first slot 6 9 `is sufficient `in width to accommodate the upper leg 64 of the latch spring 65 and extends from the rearwardly facing shoulder 52jto tzherearward end interference in its relaxed configuration and in the configuration "to which it .is `deformed to'retainytheigpusher rod as described more fullyhereinafter,j` The secondorlower fsiipprt] member and isof suiiicientgdepth'at r,the forwardly facing shoulder 5t) tojalmlow .the protrus'ion, of-.thelatcli` spring into the' annular"'spaclewSl;-` Thusgfan opening'iisf `155 of the` support member.. The Lradial deptlifof the"rupper provided through the support member at the `forwardly facing shoulder 50, which opening is of sufficient width and depth to allow theilower or actuating leg 66 of the latch spring 65 to extend froma `position rearwardly of forwardly beyond the forwardly facing shoulder 50 into the annular space 51.

The latch spring 65 is positioned within the device to allow movement of thepusher rod and pencil core in one direction only when the latch spring is in the first, or holding, condition as shown in FIGURE 2, and to allow the pusher rod and pencil core to be moved forwardly when the latchspring is in the second or released condition as shown in FIGURE l. Referring now to FIG- URES '1, 2, 3 and 4, the latch spring 65 Ais a generally U-shaped spring with an elongate upper leg l64, an elongate lower leg 65, of `greater length than the upper leg, and in intermediate, or base, portion 70 which has an opening 71 extending therethrough. The opening 71 is slightly greater in size than the diameter of the pusher rod 116. The base portion 70 of the latch spring, when the latch spring is `in its holding condition, is at an angularorientation relative to a transverse plane extending through the device perpendicular to the longitudinal axis thereof.` 4Thatis, the base .70 is-formed at an acute angle to the upper leg 64 and at a correspondingly obtuse angle with `the `lower leg 66. Thus, when the latch spring is deformed `from its holding condition by moving the legs to"po`sition the `base portion closer to a plane normal to` the device, theV circular opening 71 through the base is sufficient `ineffective size to allow the free passage of the pusher rod therethrough in both axial directions, as shown in FIGURE 3. -In the holding or relaxed condition of the spring, however, as shown in FIGURE 4, the base portion 70 is inclined substantially to the axis of the pusher rod, the -opposite'sides of the base portion defining the opening 71 binding upon and gripping the rod `116,` thereby preventing forward movement of `the pusher rod, since `a force exerted `forwardly on the pusher rod Atends to move the base 70 to a greater degree of angularity increasing the frictional 'force between the base and thepusher rod. The latch spring will, however, allow the pusher rod to be moved rearwardly since rearward forces directed upon the base portion will tend to decrease the angul ."rtpd1t5tlV4 p l Thus, as shown in FIGURES l, 2 and 6, the upperleg 64 of the spring 65 is positioned in the upperslot and is longitudinally fixed therein with the` forward end 72 of the `upper leg abutted` against the rearwardly facing shoulder 52 of the support member. The'base portion 70 is positioned within the-longitudinally` extending annular Space 73 defined bet-Ween the rearward end of the support memberl and the forward end of the sleeve 14. The lower leg of theA springis greater in longitudinal extent thanthe upper leg, and extends longitudinally within the second ygroove `61 of the elongate support member. The forwardedge '74r of the lowerllegof the `spring extends through the opening 75. defined` by :the groove in the forwardly"facing shoulders() and for a substantial distance forwardly ofthe shoulder into the annular space 51. The distance by which the forward ed-geof the lower leg ex- `tends` Vinto the annular space is deter-mined by `the amount of longitudinal movement of the lower leg which isrequired to Valter the plane gof `the base section 70 of the springtoward a position substantially normal to the pusher rod "16,"such thatthqfpusherfrod can` move-freely in both "directions throughthelopening 71.` Thus, when thelower legf, at itsfprwardposition as vshown in FIGURES Ascribedifhereinbeforei"flat,ivhichfthe opposedgportions 71a the support member 20 to a position at which it extends arity of the base and release the base from the ofthe `pe,ripheraledgegsurfaceof-the openirigy71yarein ndingpcontaet Lvyithlthe` pusher Arod; f Conversely,VV when the forward edge 74 of the lower leg of the spring is moved rearwardly to the shoulder Sil the base portion 70 is moved toward a plane perpendicular to the axis of' the pusher rod to ll the opposed portions 71a `from the rod,

kallowing it to move freely through the opening 71, as

shown in FIGURES l and 3.

A thin walled retaining sleeve 80, having an open lorward end and a anged rear-wand end is positioned anound the inner portionof the elongate support member 20` with positionV of the forward 'end 81 of the retaining sleeve. Y Theretaining sleeve 80 thus bas 1an inside diameter 82 l lCorresp(inding Yto the'cuttside diameter V54- of the inner portion tof 'the ,elongateV support member Vrearwardly of the rearwardY lfacing shoulder 52. '[lhe (rearward end 84 of the retaining sleeve isy positioned adjacent to the for- Ward .end of Vthe sleeve v14 and hasv a circular opening 35 VVtherethroughladaptedito allow free `movement of the pusher rod 16 through the end of the retaining sleeve.V "Ilhe retaining sleeve thus maintains the latch spring in itswassembledrposition lonthe inner portion of the suppont member and prevents longitudinal movement of the upper leg thereof. Thus, longitudinal movement imparted rearwardly to the lower Vleg lof the latch spring causes the intermediate `or base portion 7 0 to ble, moved V'toward the plane normal to the taxis lof the rod `16.

s the external diameter 40 of the nose piece at the forward.

`panded suiiciently to bedisposed [over the nose piece and Ilre cap section C, as discussed hereinbeore," includes t the Sharpener D and is )adapted tto be longitudinally slidably mateable ,with`4 the forward portion vof the nose lpiece 2:4 of the support menlber.,v The cap section C includes la thin-walledforward section '901 having a closed forward end y91. An actuating section 92 is If1ictionally lsecured within the yforward section `90 and projects axially therefrom, the lactuating section being surrounded by and `Vprojecting rearwardly trom :a separate ring section 93 Y extending from the [forward section 90. The actuating section 92 is adapted to vlit within the annular space `51V so to engage the lowerv leg 66 Vof the one-Way latoh and release the latter from the rod 16. Tfhe extent by .which the actuating sectiony projects rearwardly from lthe inner., end-96 of the ring 93 is approximately equal to the longi- Vtudinal extent of the annular space 51. "Thus, ,the rear- Wardly extending portion 94 :of the actuating section extendsvfully'within theiannular space 51 in substantial abutting vrelation totheshoulder 50', with the rearward end 96 of the ring substantially abutting the forward'end 12 of the lease 'barnel 10; Y `When in this position, the actuating section 92`has moved the lower leg 66 of the 'latcb spring rearward to move the spring to the unlatched .conditi-on, as discussed llereinbefore.

rDhe actuating section 92'Y has a forward inwardlyextending rllarn'ge 97,-positioned`longitudinally forwardly. of v the forward 'end24'1 of the nosev piece when the lcap C is "mounted upon thev barrel, as shown infFlGURES l and '412. The inwardly extending flange 97 vacts as a'retainingV f shoulder to limit VorwardY movement of they pencil sharp'- ener Dlsecured'wvithin the section 9'2`.V` The shaipener fincludesa Acylindrical'.member 100 adapted to be dis-l Y, ',posed'over'the nose-*piece 24, the rear :end 101 the niember'being po'sitionedffo'rwardly lot-rthe rearwardendV 95v of `the cap barre-llby'lay substantial distancesuch fthe rrearward end y1 011Will be spaced from the tapered l .fcilfeuniterential`,wall'46 ofthe nosepiecejwh'nthecap -V. Cismountediuponfthe no sef'pie Y comshateneDY its. inf :consists-"orbe generally@l:1 Y Y inclined jfeutter 106'ladapte tofdorn `the p a1 withV tenti 'against 'ne Y t ,wm

move out of the Sharpener through an end "1117 of the conical cutter and through a slot Yin the conical wall bounded on one side by the cutter 166, the cuttings nalling into .thetorward cap section `9t,`whioh can be `forcibly slipped `from the section 92 whenever the section 90 is to be emptied. Normally, however, the sections 90 and 92 move as a unit.

y 'Ilhe cap C is frictionally and releasably held upon the nose piece 24 of the barrel A in such manner that it can be retained longitudinally thereon while being freely Y rotatable with respect to the barrel of the device. Also, the means lor frictionally bol-ding the cap upon the nose piece allows sullicient :axial Vfreedom of the capY that it can be rn'ovedirom an `assembledat-rest position, vvhere the latch means is in engagement the pusher rod,

to a second actuating position lat whioh the leg 66- lof the Y latch means had been moved rearwardly to disengage the`V latch meansland allow the pusher rod 16 and pencil core Y B to be moved forwardly against the sliarnpener D in the cap. As shown in the drawings, the v'sleeve 11th hasy an inside diameter substantiallyequal to but:v 'greater than portion thereof. An lannular groove 114 is provided in the sleeve 100, there being a split, contractileY holding ring 11S positioned within this groove 114. The mounting rin-g 115 i-sof substantially lesser longitudinal width than the longitudinal vvidth of the 'annular groove "114.` The mounting ring 115 is of the split resilient type which has an unrestrained inside diameter less than the idiameter 49 Yof the nose piece. The split mounting ring can be exfrictionally ,grip its periphery lwith ra'fforce preventing invadverteutremoval -off 'the cap C from the bar-rel, without, however, preventing vsliding of the cap onto and from the :barrel nose piece; The friction ring 115 has a minimum .outsidefdiarneten withthe cap removed from the nose piece, 'greater than the inside diameter of the sleeve 16H5 so that the ring cannot fall `out of the groove when the cap is oi the bamrel. ,'Dhe groove 114 is of sufcient radial extent as to permit the ring 17115 to expand therein Y v when placed on the nose piece 24 and trictionally grip the nose piece.` Y v Due to the greater Width of the annular of :longitudinal movement of the cap `C along the `nose .piece is possible Without moving the mounting ring 115V .relative to the nose piece. 'Ilh'e. increased width 'orf the `annular groove rwith respect to the mounting rin-gis pre# A is Vsufficient Yto 'allow jactuation yorV release ofthe latch 913 of the act-uatingrsection has movedrthe lower leg 6601i the-latch spring` rearward no place .thefb'a'se section in the congunati'on shown in FIGURE( 3at which' the 'pusher y podlvt and pencill BAarejfree to bernoved'.forwardly"byv the spring 17.: V,At this'posi'tion, the.pencil1icore been i lorced against lth=,`s l1ai1pener D. Y {Aecorin'gly,V rotation f 4 g .of ther-oapv Cwilll oausethe sharpener Dfto'cutia pointfon i :the end pf ,the pencil'c-ore. Whenv therearward force on `JtliefoapC,1which forceis; to; theright the'y "rel-eased,-hovfeven'r the' spring V .V17 jacts through.the irofd jldpencigl cutter v*D to' move vthe cap C ttorwai'dly of the barrel untilthe jrear shoulder 1:19' fofjltheannular,Y

j groove 114 engagesthefrictipnjmountingring 11S;V {Duei` Y [to such movement; thesap portion 94jliasjiriovedf-away t Iallowing fthe latch;to,as,sum-e` its Y from-fthe latch' vleg 66,'

spring'65. Thus, as showninjFIGURE l, when the cap is placed over the nose section, the forward shoulder 121 {Iof thegannular groove will forcethe'mounting ring 115V over the 'nose piece and into the position shown in FIG- URE l. The mountingring is thus movable ontothe nose piece to the position at which the rearward .end a of thejcap'abuts the .forward end of theouter barrel vot the case'. VVAt' this position, the "actuating pontion '94 of .the

cap has entered'the annular spaoe51`a1nd the forwardend g groove 114i` l than the widthk of the mounting ring 1115, a cer-tain extent glides,YY is l 1 relaxed con-figuration at which it has a binding force upon the pusher rod 16, as shown in FIGURE 4, and the device is in the at-rest position, in that no forward force can now tbe exerted by the spring 17 tending to furge the pencil B against the Sharpener D..

Accordingly, it can be seen from the rforegoing that operation :of the shaipener D contained within the cap C of the marking -pencil device can be utilized to sharpen the point or the pencil core only when desired. IIn order to sharpen lthe point, it is necessary only to exert a slight inward force upon the cap C to release the latch and then rotate the cap. Upon release of this force, the cap C is moved `forwardly of the barrel land the latch suiciently to allow the latch to reengage the pusher rod, preventing the spring trom forcing the pencil B against the sharpener.

What is claimed is:

1. Ina marking pencil: a barrel having means engaging a pencil core ffor supporting said pencil core against sub` stantial rotation relative to said Ibarrel while permitting said 'core to move axially with respect to said barrel;

`means within said barrel lfor engaging'and fee-ding said means being shifted to released position by said cap in said maximum rearward position to enable said feeding means to feed the pencil core against said sharpening means; means rictionally mounting said cap on said barrel in su/oh` manner as -to permit rotation yof said oap on said barrel when in said maximum rearward position `to rotate said sharpening means land `also to permit said lfeeding means to shift said caplforwardly on said barrel from said maximum rearward position to eiect reengagement off said latch` means with said feeding means.

2. Ina marking pencil: a barrel having means engaging a pencil core for supporting said pencil core against substantial rotation relative to said barrel while permitting said core to move axially with respect to said barrel; means within said barrel for engaging and lfeedin'g said core for` `including an actuating member exten-ding longitudinally of said barrel and engaged iby said cap when in said maximum rearward position to release said latch means and `ena-ble said `feeding means to feed the pencil cor'e against said sharpening means; means \friotionally mount-` ing said'cap on said-barrel in such mannerlas to permit rotation of said cap` on said barrel when in said maximum rearward position to rotate saidshar-pening'vrneans and` also to` permit said feeding means to shirt saidloap' forwardly on said barrelfrom said maximum reiarwardposition to effect reengagementpf said latch meanswith said feeding means.

, l '3. in s marking passifsibirerhavingmeans @maag-z :ing a pencilcoreffor supporting the pencil'core against x substantial rotation relative. to saidb'arrel while'permitting from Ia rearward longitudinal position to a [forward longitudinal position while mounted thereon; sharpening means positioned within and rotatable with said cap when said oap is engaged on said barrel land in said rearward position Ito sharpen said core when said core is urged :forwardly into said sharpening means; relea-sa-ble latch means normally engaging said feeding means to prevent said feeding means from moving `said core rionnardly longitudinally in lsaid barrel; said latch means operatively connected with said cap lwhile said cap is mounted on said barrel, said latch means being movable to the release position thereof to release said feeding means an-d permit said c'ore t-o be moved yorwardly when said cap is moved from said forward to said rearward position; said latch means being normally urged to engage said ffeeding means whensaid cap is moved from said rearward to said `@forward position by said feeding means and core. i

4. In a marking pencil: a barrel `having means engaging a pencil core for supporting the pencil core against substantial rotation relative to said barrel while permitting said core to move axially with respect to said barrel;

`means within said -banrel or engaging and feeding said core onvardly of said barrel to locate the 'forward end of said core exteriorly of said barrel; a cap; means for operativel-y mounting said cap ion said barrel for relative rotation thereon, said eap mounting means including 'a lost motion device permitting limited longitudinal movement without rotation `of said cap `relative to said barrel from rearward `longitudinal position to a [forward longitudinal `position while mounted thereon; sharpening means posiing means from moving said core forwardly longitudinally in said barrel; said latch means including `an actuating member extending longitudinally of said barrel and operatively engaged lby saidcap at said rearward position thereof; said actuating member when engaged by said cap at said rearward position `being positioned longitudinally to release said latch means from said feeding means to permit said feeding means Ito'urge said core [forwardly into said sharpening means; said actuating member being normally urged longitudinally vof said barrel to move said latch means to said normalposition at which said latch means engages said feeding'means whensaid oap is urged I to said forward position by said -feeding means.

5. In a marking pencil: a barrel having means engaging a `pencil core for supporting said pencil core against substantial rotation relativeto said barrel while permitting said core to moveaxially with respect to `said barrel; means within said barrelffor engaging and feeding said core forwardly of said barrel tolocate the forward end of UTst iidicore exteriorly of the forward end'offsaid'ibarrel; a

Corefwheri said coreA is 'urged forwardlyinto said sharpeng `"ingmeaiimreleasable latch means normally engaging` said said core=to move `faxiallywithrespect .to Asaid barrel;` .l

" ,mreans 4withinsaid barrel for engaging andLjfeeding said (operatively mo ntingsa p ',capion saidkl barrel for relative *rotationfther on,"said cap mounting means including= a lost-motiondevicepermitting limited `liongitlidinal move.- hment withoutlrotation ,of said 'cap relative to said barrel j cap; means mov-ably mounted in :and relative to said cap' .for iricti'onal-ly engaging saidilbarrel; said cap being rotatable with respect to said Ifriction engaging means and longitudinally movable through alimited longitudinal distance 'from 1a forward position to la rearward position respect'lto said friction `engaging meansiwhilels'aid frictionen-gaging means are engaged on said barrel; sharpening means positioned .within rand rotatable with said cap when said` capis Vegxigaged ons'aid barrel to sharpen said feeding meansfto prevent said feeding means from movfingsaidcore l'bngitudinallyfiri said barrel; `saidwlatch means f operatively connected/with said'foap"V A`szl1iil^-capy is` enga-ge' onsaid bar'relysaid latchlmeans movable toV `thefielease position `thereof to `release saidftieeding 'means ndpermit said corefto Ib'emoved. iorwar-dlyiwhen said cap is movedd'rom saididorward to rearward .position; said; latch means .heingnonmallyurged to engage position by said feeding means. v

said core to move axially'with respect to said barrel;

means' Within said barrel for engaging and feeding said core forwardly of said barrel to locate the forwardend of said core exteriorly of the forward end of said barrel; acapg means movably mounted in and relative to said cap for frictionally engaging said barrel; said cap being rotatable with respect to-said friction engaging means and Vlongitudinally movable through ya limited longitudinal 'dis- .tance from a forward position to a rearward position'with respect-,to said friction engaging means while said frictionV engaging means are engaged `on said barrel; sharpening means positioned within and rotatable with said cap when said cap is engaged onV said barrel to sharpen said core when saidcore is urged forwardly into said sharpen- "i'ngmeansg releasable latch means normally engagingsaid feeding means to prevent said feeding means from. mov- Ving said core longitudinally in said barrel; said latch vmeans including an actuating member extending longitu- `dinally of said barrel and operatively engaged by said cap at said rearward position thereof; said actuating .f'menrber when engagedby said cap at said rearward position'bein'g positioned longitudinally to release said latch rmea-ns from sa-id feeding means to permit'said feeding `I rieansto-urge said core forwardly into said sharpening means; said actuating member being normally urged longitudinallyof said barrel ltol move said latch means to said normal position at'vwhic'h said latch means engages said feeding. means when said cap is urged to said forward .7. In .a marking pencil: Va barrel having means engaging a pencil core for supportingsaid pencil core against substantial rotation relative ytofsaid barrel while permit- Yting said core to moveaxially with respect to said barrel; means within said barrel for engaging and feeding said core If orwardlyrof theV barrel to locate the `forward end eter, said 'cap defining an'annular lgroove in the internalV portion rand beingexpandabl'eto saidloutside diameter f substantially less than fs'aid predetermined longitudinal Y extent fof ,said lgroove, su'ch that said cap Vis operatively mounted on'said nose lportion rotatable with respect 1. thereto and longitudinally movable from a forwardposi--- tion to arearward position relative to saidnbarielwhile said ring visl engaged ou s 'aid Ynosegportion ata xed longii .tudinal rposition thereof; sharpening means positioned withinandrotatable Withsaidcap when said cap isens gaged on said' barrelto shanpen 'said core when saidco're f ,fisurgedfforwardlyintosaid sharpening means; Vreleasable g,

" latch"meansnormally-engaging'said feeding V'means to udinally in saidfbarrel; saidlatohlmle'ans operatively con- :65

preventsaid feeding means from moving said core/longie'cted-.withf'saidfoap while said cap'isengaged on said il bar-rel, said' latch means being 4.movable to the release position thereof 'tofrelease said feeding means and permit l movejdfonwardlywhen,said-cap is`moved.

bei

tionbysaidfeeding'means and-core; .Y

. v Ina mark forward to said rearward osition;1said latch in gpencilrabarrei having vmeans v means lfrom said feeding means to permit said feeding ing a pencil core for supporting said pencil core against substantial rotation relative 'to said barrel While permitting said -core to move axially With respect to said barrel;

` means within said barrel for engaging and feeding said core forwardly of the barrel to locate the forward end of the core exteriorly of the barrel; said barrel having a for- Wardly extending nose portion `of predetermined outside diameter; a cap, said cap having an inside diameter substantially equal to but greater .than said outside diameter, said cap delining ran annular groove in the internal wall thereof, said groove being of predetermined longitudinal extent; `a contractile ring rotatably mounted in said groove,

said ring being normally urged to an inside ydiameter less thanisaidoutsideydiameter of said nose portion and being `expandable to said outside diameter thereof, said contractile ring having a-longitudinal width substantially less than Vsaid predetermined .longitudinal extent of said groove, such `that said capis operatively mounte-d 4on said nose portion rotatable with respect thereto and longitudinally movable from a forward` position to a rear. ward position relative tosaid barrelV while said ring isV engaged on said nose'rportion at a fixed longitudinal position thereof; releasable latch means normally engaging said feeding means to prevent said feeding means from moving said core longitudinally in saidl b-arrel; said latch means including yan actuating member extending longitudinallyl of said barrel and operatively engagedby Vsaid cap at said rearward position thereof; said actuating memi ber when engaged lby said cap at said rearward position being positioned longitudinally to release said Vlatch means to urge said core forwardly into said sharpening means; lsaid yactuating member being normally urged longitudinally of said barrel to move said latch means to said normal position at which said latch meansengages said feeding means when'said cap is urged to said forward position by said feeding means.

. 9. Ina marking 'pencilzf a barrel having means engaging a pencily core for supporting saidpencil core against substantial rotation relative to said bar-relwhile permitting i said core to move Vaxially with respect to said barrel;

Wall thereof, said' Igroove beingof predetermined longil Atudinal extent; a contractile ring, rotatably mounted in said groove, ysaid ring'b'eing normallyur'ged t-o an inside, 1 diameter less than said-outside diameter of saidnose thereof, said contractile ring having a longitudinal width l means within saidbarrel Vfor engaging and feeding said core forwardly'of lthe barrelto locatethe forward end of the tcore exteriorly of the`barrel; said ,barrel having a forwardly Vextending nose portion of predetermined outside diameter; La cap, said cap having an inside diameter substantially equal to but greater thany said outs-ide diameter, said cap ldeiining Van annular groove inthe internal portion .and being expandable toY saidoutside diameter vthereof,` 'said contractile ring having a longitudinal width Isubstantially less Vthan said predetermined longitudinal extent Lofsaid` groove, suchqthat said vrcap is operatively 1tmounted on saidA nose portion rotatable withu respect thereto and longitudinally movable from' a forward'position toa -rearward position relative to said A barrel whilef said iringis engaged on saidriose portion at `a fixed longitudinal position Athereof;'sharpening means positionedwithin and 'y capfis'moved from said-rearward vto said forsaid,legs-beingtheactuatingrleg ofsaid latch 'nieanslfsaid f .actuating leg being longitud-inally,movableand"normallyY @longitudinally ,entenda ieg ibase 1portidndefining an'` openi d v latch ineens` including fa 1d f-Urshaped spring Withi 'nggsaidfeeding meanafone Vlegs beinigsubsta tiallylongitudn allyiixed fwithin" aid barrel, the otherv of rotatable with saidlcapV when s'aidjcap is mounted on vsaid'rnose portion to sharpen s 'aid core` when said c ore is unged'forwardly intojsaid sharpeningmeans;releasable latch, lmeans normally vengaging vsaid! feedingA means tofj f lprevent ysaid feeding :meansfrom `movinjgithe core longi-. tudinally in VVsaid barrel" nel, .said Spring hailing r urged to a forward position with respect to said barrel, said base at said forward position of said actuating leg being in binding contact with said feeding means to prevent forward movement thereof, said actuating leg being rearwardly movable to release said feeding means to urge said core forwardly, said actuating leg being in bearing contact with said cap and moved to the rearward position of said leg at the rearward position of said cap; said actuating leg being normally urged to the forward position thereof when said cap is urged to the forward position thereof by said feeding means.

10. In -a marking pencil: a barrel; means for supporting a pencil core in said barrel against substantialrotation relative fto said barrel while permitting the core to move axially of said barrel; a cap; means mounting said cap on said barrel for rotation and for longitudinal movement on said lbarrel without rotation between a forward position and a maximum rearward position thereon; sharpening means positioned within and rotatable with said cap relative to said barrel to sharpen the core when said cap is in said rearward position; means within said barrel for feeding the core forwardly of said barrel to locate the forward end portion of the pencil core externally of the barrel and in' said sharpening means; releasable latch means for preventing said feeding means from moving said core forwardly in said barrel; said cap being shiftable by manual force to said maximum rearward position and against said latch means to release the same; said mounting means embodying means permitting said cap to be shifted by said feeding means from said maximum rearward position to said forward position to allow reengagement of said Ilatch means when said manual force on said cap is removed.

11. In -a marking pencil: a barrel; means for supporting a pencil lcore in said barrel against substantial rotation relative to said barrel while permitting the core to move axially of said barrel; a cap; means mounting said cap on said barrel for rotation and for longitudinal movement on said barrel without rotation between a forward position yand a maximum rearward position thereon; sharpening means positioned within and rotatable with said 'cap relative to said barrel to sharpen the core when said cap is in said rearward position; means within said barrel for feeding the core forwardly of said barrel to locate the forward end portion of the pencil core externally of the barrel and in said sharpening means; releasable one-way latch means engaging said feeding means to prevent said feeding means from moving said core forwardly in said barrel; said cap being shiftable by manual force to said maximum rearward position and against said latch means to release the same from feeding means; said mounting means embodying means permitting said cap to be shifted by said feeding means, when the manual force on said cap is released, from said maximum rearward position to said forward position and from operative relation to said `latch means to allow reengagement of said latch means with said feeding means.

12. In a marking pencil: a barrel; means for supporting a pencil core in said barrel against substantial rotation relative to said barrel while permitting the core to move axially of said barrel; a cap; means frictionally mounting said cap on said barrel and permitting rotation of said cap on said barrel and limited longitudinal movement without rotation on said barrel between a forward position and a maximum rearward position; sharpening means in :and rotatable with said cap relative to said barrel to sharpen the core when said 4cap is in said rearward position; means in said barrel for feeding the core forwardly of said barrel to locate the forward end portion of the `core externally of the Ibarrel and in said sharpening means; releasable latch means for preventing said. feeding means from moving said core forwardly'in said barrel; said cap being shiftable on said barrel by manual force to said maximum rearward position `and against said latch means to release the same; said mounting means embodying means permitting said cap to be shifted by said feeding means, following removal of the manual force on said cap, from said maximum rearward position to said forward position to allow reengagement of said latch means.

13. In a marking pencil: a barrel member; means for supporting a pencil core in said barrel member against substantial rota-tion relative to said barrel member while permitting the core -to move axially of said barrel member; a cap member; friction means mounted on and rotatable with respect to one of said members and frictionally engageable with the other of said members to enable positioning of said cap member on said barrel member in a maximum rearward position, Said friction means having lost-motion with said one of said members to permit said cap member to shift from said maximum rearward position forwardly of said friction means and bar-rel member; sharpening means in and rotatable with said cap member relative to said barrel member to sharpen the core when said `cap member is in said maximum rearward position; means in said barrel member for feeding the core forwardly yof said barrel member to locate the forward end portion of the core externally of the barrel member and in said sharpening means; releasable latch means for preventing said feeding means from moving said core forwardly in said barrel member; said cap member being shiftable on said barrel member by manual force to said maximum rearward position and against said latch means to `release the same; said friction means permitting said cap to be shifted by said feeding means, following removal of the manual force on said cap member, forwardly from said maximum rearward position to allow reengagement of said latch means.

References Cited in the file of this patent UNITED STATES PATENTS 2,000,487 Koch May 7, 1935 2,486,960 Mesh Nov. 1, 1949 2,565,715 Becker Aug. 28, 1951 2,606,527 Filak Aug. 12, 1952 2,642,039 Filak June 16, 1953 2,941,508 SpatzA June 21, 1960 2,979,029- Melnikoif Apr. 11, 1961

Claims

10. IN A MARKING PENCIL: A BARREL;MEANS FOR SUPPORTING A PENCIL CORE IN SAID BARREL AGAINST SUBSTANTIAL ROTATION RELATIVE TO SAID BARREL WHILE PERMITTING THE CORE TO MOVE AXIALLY OF SAID BARREL; A CAP; MEANS MOUNTING SAID CAP ON SAID BARREL FOR ROTATION AND FOR LONGITUDINAL MOVEMENT ON SAID BARREL WITHOUT ROTATION BETWEEN A FORWARD POSITION AND A MAXIMUM REARWARD POSITION THEREON; SHARPENING MEANS POSITIONED WITHIN AND ROTATABLE WITH SAID CAP RELATIVE TO SAID BARREL TO SHARPEN THE CORE WHEN SAID CAP IS IN SAID REARWARD POSITION; MEANS WITHIN SAID BARREL FOR FEEDING THE CORE FORWARDLY OF SAID BARREL TO LOCATE THE FORWARD END PORTION OF THE PENCIL CORE EXTERNALLY OF THE BARREL AND IN SAID SHARPENING MEANS; RELEASABLE LATCH MEANS FOR PREVENTING SAID FEEDING MEANS FROM MOVING SAID CORE FORWARDLY IN SAID BARREL; SAID CAP BEING SHIFTABLE BY MANUAL FORCE TO SAID MAXIMUM REARWARD POSITION AND AGAINST SAID LATCH MEANS TO RELEASE THE SAME; SAID MOUNTING MEANS EMBODYING MEANS PERMITTING SAID CAP TO BE SHIFTED BY SAID FEEDING MEANS FROM SAID MAXIMUM REARWARD POSITION TO SAID FORWARD POSITION TO ALLOW REENGAGEMENT OF SAID LATCH MEANS WHEN SAID MANUAL FORCE ON SAID CAP IS REMOVED.