US1490124A - Automatic pencil - Google Patents

Description

Patented Apr. lli, 1323.

naar a' S ma AUTOMATIC Fmi ill sa ro n. Y.; aan roar.

i vfse:

Application le Becemloer 22, 1921. aerial No, 524,653.

To all 'whom t may concern:

Be it known that l, RAPHAL NEWER, a citizen of the Republic of France, residing at New `York city, in the county and State of-New York, U. S. A., have invented certain new and useful lmprovements in Automatic `Fencils, of which the following is a full, clear, and exact description.

This invention relates to pencils. More speciically it relates to reillable pencils in which a crayon may be fed forwardly from the body or casing of the same.

One of the principal objects of the invention is to provide a pencil in which the crayon may be fed forwardly by the actuation of a push element, preferably a push button.

Another object is to provide a pencil wherein the crayon may be fed forwardly or released for retractive movement by the actnation of a ush element', referably a push button. @t er objects and advantages will appear as the invention is hereinafter disclosed.

Referring to the drawings which illustrate what l now consider preferred forms of the invention f.

Fig. 1 isl a longitudinal ,section through one form of pencil embodying the invention.

Fig. 2 is a fragmentary detail elevation, partly in section, of the pencil shown in Fig. 3 is an inverted plan view, partly in section, of the structure shownin Flg. 2.

Figs. 4, 5 and 6 are sections taken substantially on the lines 4-4, 5 5, and 66, respectively, of Fig. 2.

Figs. 7 and 8 are respectively perspective views of a lever and pawl :forming a part of the structure shown 1n Fig. 1. Fig. 9 is a fragmenta elevation, partly in section, of a modified orm of pencll.

Fig. 1'0 is a section taken substantially on line 10-10 of Fig. 9.

Fig. 11 is a view similar toiFig. 9 but illustrating a further modification.

Fig. 12 is a' detail sectional elevation illustrating still another modification.

Fig. 13 is a section on the line 13-13 of Fig. 12.

Fig. 14 is a -view similar to Fig. 11 but illustrating a further modification.

o Referrlng to Figs. 1 to 8 it will be seen that the pencil there illustrated comprises a casing 10 having at one end a tip 11 and.

through an opening 37 in the tube i ga' ra at the other a cap 12. The cap 12 is adapted frictionally to fit the casing in the position shown in Fig. 1 or in a position reversed with respect to that position so as to expose 'for use Ithe eraser 13. The pencil is provided with a crayon-receiving bore and preferably with any suitable means for imposing a rlctional force upon the crayon to prevent `inadvertent or accidental movement of the crayon with respect to the body of the pencil.

The tip 11 is detachable from the barrel 10 by virtue of the cooperating screwthreads 14 provided on the interior of the tip and on the exterior of a sleeve 15 frictionally or otherwise held in said barrel.

@ne form of operating or crayon-feeding mechanism will now be described.

A longitudinally movable follower rod or member 36 and a longitudinally movable member 31, in this instance, serves as a pawl to enga e ratchet teeth32 provided upon the enlarge extension 33 of the follower rod. The latter is adapted to enter the bore of the sleeve 16 to push the crayon 17 from the pencil and extends into a sleeve or tube 34 secured within the casing or barrel 10 by means such as annular spacer blocks 35 and 36. The active end of the pawl 31 asthlses s opening being of suicient size to permit'the pawl to impart the desired movement to the rack 33 and consequently to the follower rod. A spring 38 secured to tube 34, and extending through an opening 39 thereof intoengpment with the ratchet teeth 40 on the c 33, is provided to prevent overthrow or accidental movement of the rack. If the pawl 31 is held in the` sition shown in Fig. 1 it will prevent the fo ower rod, and consequently the crayonv 17, from lbeing forced into the n'cil. And if the pawl 31 1s moved forward y the follower rod and crayon will A be correspondingly moved thereby. I therefore provide devices for normally holding the pawl 31 in the position shown in Fig. 1 and for actuatin or reciprocating the pawl. One'form of suc means 1s shown in Flgs. 1 to 8 and may be constructed as follows.

The pawl 31 is guided in its longitudinal movement by the slots 41 and 42, in the blocks 36 and 37, through which said pawl passes, and is further guided in such movel ment by the slots 43, 43, in the member 15,

ze l actuating member r31 are provided. rlhe the edges of the slots 43, 43 as a c or pivot.. A spring 45 secured tothe pawl and engag casin 10 biases the awl toward the rack 33. To pawl is biase toward the head or butt end of the pencil by means ot a compression. spring 46 mounted in a bore 47 in the bloch 15 and engaging the pawl betweenthe bifurcations 44, 44.

A bell crank lever 50 is pivoted at 51 to the block 15 and movable in a slot provided in said block. This lever has a biurca'- arm 52, which extends acrossthe casing y1() and through which the 30 e The bifurcations 52 terminate in reduced elements 53, each of which is adapted to enter a corresponding one of the notches 54 rovided in the pawl. The other arm of the ell 'crank lever is provided with a portion 55, adated to be engaged by and to engage a ush "t utton 56, and 1s provided also with ifurcated end 57 through which the rod 30 extends. tions 57, 57 are designed to engage and operate the pawl 31 laterally when the push button has been actuated to a suilicient extent. The ush button 56 is generally in the form o a cylinder and extends through an .aperture 60 in the side wall of the casing 10 and is slidable in a transverse bore 61 in the `block 36. Directing specific attention to Fig. 4, it will be noted that the push button is slotted at 62 and straddles the lever 50 and pawl 31. 1t will be noted further thatl the ush button is rovided with shoulders 63 w ich are adapte to engage the -underside of the pawl 31 to limit the outward movement of the said push button. The various operations in assembling the parts of the pencil and the comparative ease' with which th operations may be rformed uw be apparent to those skilled in the art inview o the foregoing description and therefore need not be set forth. After having been assembled, the pencil shown in Figs. 1 to 8 is so designed and constructed as to operate substantially as follows:

en theparts occupy the position illustrated in Figs. 1 and 2, the .--ncil is in condition for use, i. e., it may employed to write. rlhe pawl 31 is preven from moving longitudinally toward the head 12 by virtue of the lever 50- and push button 56. The pawl 31 therefore serves, at this time, to 'event the crayon 17 from mofa i" into or ing forced into the pencil. 1'.

'lhe extremities of the bifurcamedias a button 56 causes the lever 50 to move clock- 57 thereof to engage the pawl 31 to move the latter out of engagement with the rack 33. Jlhis is an important feature in that, by

virtue of this construction, the rack may be released and the crayon 17 may be forced back into the pencil at any time, and this release is edected by operation of the same .element 56 employed to cause feed movement of the crayon; en the push button is released, the springs 45 and 46 return the parts 31, 50-and 56 to the position shown in ig. 1. rlFhe s ring 38 prevents movement of the rack 33 by the back or return stroke of the pawl 31.

As the crayon becomes consumed it is fed forward a step each-time the push button 56 is depressed. When completely consumed the pencil may be rechard by unscrewing the tip 11 from the bo portion 10, iiiserting a new crayon into the bore, depressing push button 56 to release the pawl 31, pushing the follower rod back into the barrel 10, and then screwing the tip 11 back upon the said body portion. The pencil may then be employed in the manner above described. rlhe extra leads or other crayons may be stored in the ampl magazine space 64, accessible by removing the head 12.

1 shall not enumerate all of the advantarges gained by my invention but 1 wish to direct particular 'attention to the fact that a single actuation of the radially movable push button 56 feeds the crayon 17 forward a substantial amount, i. e., an amount substantially equivalent to the additional exposure of crayon incident to the sharpening of an ordinary wooden ncil. This feature is rendered possible, wit out increasing the diameter of the vvbarrel 10 to ungainly and unwieldy proportions and without bending or dexing the follower rod, b the extension of the arm 52 and thepus button 56 substantially across the interior of the casing. Other important advantages will be apparent to those skilled in the art in view of the foregoing description.

The form of invention described above is susceptible to modication in various respects. Thus the lever 50 may be omitted and the push button may be employed directly to operate the pawl. @ne form of mechanism thus modified is illustrated in momies drical bore 6l of the'blook 36 but is providedl with a pin operable in a slot 7l, in the block 36, to prevent rotational movement oi' the push button and to limit the extent of outward radial movement. Here Vagain the push button is slotted or provided with an opening to straddle the follower rod 30. 'lhe lower faces 72, 72 of the push hutten are inclined as indicated and are each adapted to cooperate with a corresponding one ci a pair of inclined laces on the pawl 31B. The push button is rovid also with a pair of shoulders 7d' a apted to en' gage the upper surface of the pawl 31 and to move the pawl laterally at the end of the. feed stroke.

en itis desired tofeed the lead or crayon forwardly, the push button 56 is depressed as descri in connection with the pencil shown in Figs. l to 8. 'lhis causes the pawl 31 to move forwardly hy virtue of the action of the cooperating inclined faces. 72 and 73. The pawl 3l! therehv moves the rack 33 forwardly one step and at the end of the feed stroke the shoulders `712i engage thepawl so that *con-v tinued depression of the push hutten releases.

the pawl from the rack. en the push button is released the spri d5, d6, come into play to restore theparts 3l, 56, to the position sho in Fig.' 9, the spring 38 holding the raclr in the position to which it has heen aetuated. Except for diilerences set forth above, the construction and operation oi the form of pencil illustrated in Figs. 9 and l0 is the mme as that shown in Figs. l to 8.

Further modiiications may he resorted to without departing from the generic invention. For example, the spring 45:5 may be dispensed with.I or the longitudinal move ment of the pawl moy he employed to edect its lateral release moveent etc. Changes in construction such as those last mentioned are illustrated in Fig. il. yllhe elements lll, li, 30. 33, 35, 33 and dt `are the same es those illustrated in Figs. l to 8 and Figs. 9 and lll. The element l5a in Fig. il is the same as the element l5 in Fig. 9. However., the *following changes should he noted in the elements 3l". 34". 36" and 56 corresponding inspectivelv to the elements 3l, 3ds, 36a and 53a of Figs. 9 and l0. The pawl 3l", instead of moving lnterally about the hloclr l5 as a ilulcrlnn. loends shout the hloch 36 as a hilcrurn and the inherent liency of the end of the pawl is relied upon to hins it to ratchet-engaging msition. This change of i rocatory ot the line lll- X in Fig. ll. ln other fulcrum is eiiected h em lo g an opening 80, in the block 303g (sedFig'lllL) instead of the slot lshown in Figs. l and 9. yThe pawl 31? is providw with a lug or projection 8l adapted to engage a struck up portion 82. 70 on the sleeve 34" so as to move vthe pawl 31" out of ratchet-engaging position at the end of the feed strokev of the pawl. By virtue of this construction the shoulders 74,74 (Figs. 9 and 10) may be and are dis%nsed with in 75 'the form of pencil shown in When the ipush hutten 56 is deprsed, the `oooperating inclined faces 72, 73 cause the 'pawl`3lb to move forwardly to actuate the rack 33 one step. 'At the end of the feed 80 stroke the elements 81, 82, cause the pawl' 'to become disengagedfrom the rack th.

When the push'butto'n 56h-is released the s ring 46 and the inherentresiliency cause t e parts 56band 3l to assume the position 85 shown in Fig. 11. The o ration of the pencil shown in Fig. 1l wil now be understood, in view of the foregoing description in connection with Figs. l to 10.

ln all forms ci the invention thus far described the longitudinally movahle follower rod or member 30 is provided with 'rackforming or ratchetfforming teeth and the member 3l (01"31 or 31) construe in the form of a pawl. rlhis structure may he modified by providing teeth on the recipmember and a pawl on the follower rod. An example of such an arrament is shown in Figs. 12 and i3 to which reference is now me.

e follower rod 30 is provided with anl enlarw portion or extension 33 which is guided in its longitudinal movement hy the tube 34e. 'lhis tuloe is mounted in the cesing l() in a manner similar to the tuhes 3d and 3d in the preceding hgure's, i. e. hy means including a spacer member 35. rllhe portion 33a of the follower rod is provided with a tooth or pawl adapted to he engaged and operatedv hy a raclr or ratchet memher 9i. The latter 'is connected. to a member 3l which in turn may he operated hy vmechanism such as that shown in Figs. l, 9 or ll, preierahly that shown to the left;

words, the member 3F (Fig. l2) would constitute the right hand portion and that portion ot the member 3l which lies to the lett of the line X--X in Fig. ll would constitute the lett hand portion of the longitudinally reciprocating memher. The nach @l ishiased to pawl-engaging position hy any suitable means such as a springdie. ln order to disengage the rech from the pawl 90 at the end oit' the feed strohe o? the former, the rech may he provided with a plnrnlity oi pins 95 each adapted to enge a corresponding one oi inclined portions 96' provided on the outwardly turned .edges 36 mi 4'the tuhe 3ft. The design and m lll construction are such that this torm ot mechanism will operate substantially as tollows.

When the push button is depressed, the members 31c and 91 move forward to operate the pawl 90 and follower rod 30 one step in a forward direction. At the end of the leed stroke the pins 95 cooperating with the inclined portions 96 cause the ratchet or rack 91 to become disengaged trom the pawl 90. Upon release of the push button the parts are automatically restored to original position with the exception of the follower rod 30C, which is held in the position to which it has been actuated by friction or byother suitable means. y

ln Fig. 1d l illustrate a form ot pencil in which the member 56d is shown in the form of a manually operable slidable member, mounted for slidable movement in'reverse directions parallel to the axis ot the pencil, the slide member being mounted in a suitable opening or aperture provided in the side wall of the casing 10d nearer the tip than to the other end of the pencil. lt will be noticed that the member 56 is provided with a de reslsion or concave portion adapted to receivefthe operators tinger or thumb to facilitate manual operation. .The elementd 10d, 15, 30d, 33d, 34d, 35a, 38d and ll` correspond generally to the similar elements which are designated by the same numerals, with diderent subscripts, in the other figures. y 'lhe member .56d may be prevented trom turning in its slot by any suitable means. For example the shanh ot' said member and the said slot may be so designed as to permit sliding but to prevent turning ot the slide 56'1 with respect to the pencil casing. 'llhe pawl 101 is provided with an annular portlon or'ring 100 which surrounds the shank ot the member 56d and is secured thereto by means ol a pin 70d. llt'will be noted that said pin 70 and ring 100 prevent outward radial movement ot- .the member 56 when the parts are assembled. Yll`he parts Bld and 82i correspond `to the elements 81 and 82 in Fig. 1l. yl`his lor-m ot pencil is constructed and designed to operate as lollows.

"lo :leed the crayon forward, the slide 56d is moved toward the pencil tip. Such movement actuates the gwwl 101 to leed the follower rod and crayon forwardly one step. At the end ot the leed stroke the parts 81", 82 cause the pawl to be thrown laterally away `trom the rack 33d. The operation ot this form ot ncil will now be clearly understood in view ot the foregoing description in connection with lFig. 14: and the preceding figures.

lln accordance with the provisions ot the patent statutes, ll have herein described the principle of operation of my invention, to-

:nomine some ot these may be altered and others omitted and some ot the features of each moditication may be embodied in the others without interfering with the more general results and eects outlined, and the invention extends to such use.

What l claim is v l. A pencil comprising in combination a casing having a tip through which a' crayon is adapted to be ted;` releasable means carried by said casing tor preventing movement oit al crayon 'inwardl through said tip; means, comprising a pus button accessible from the exterior ot said casing and mounted for sliding movement toward and away from the anis ot .said casing. lor feeding a crayon outwardly through said tip upon depression or said push button; and means called into action' upon'lturther depression of said push but/ton tor releasing said releasable means to permit a crayon to more inwardly through said tip.

2. A pencil comprising in combination, a casing having a tip through which acrayon is adapted to be fed, a follower rod slidably mounted insaid casing and adapted to ropel a crayon through said tip, a push utton slidably mounted with respect to 'said casing and accessible from the exterior ot the pencil tor manual operation, a lever mounted within said casing and operable by said push button, and pawl and ratchet connecting saldi mechanism operatively lever and follower rod. v

3. A pencil comprising in combination, e casing having a tip through which a cra on is adapted to be ted, a follower rod slidably mounted in said casing and adapted to pro. pel a crayon through said tip, a push button vslidably mounted with respect to said casing and accessible from the exterior of the pencil for manual operation, a member mounted within said casing tor longitudinal reciprocating movement with respect thereto, means operatively connecting said member and tollower rod whereby reciprocatin movement ot said member imparts longilll@ tudinal crayon-leed movement lto said rod,

and operative connections between said push button and member.

la. A pencil comprising in combination, a casing having a tip through which a crayon is adapted to be ted, a follower rod slidably mounted in said casing and adapted to propel a crayon through said tip, a push button slidably mounted with respect to said casing and accessible trom the exterior ci I ton carried b s owing, crayonui e the pencil for manual' operation, a lever mounted within said casing and extending across' said follower rod, said lever being operable by said .push button, and means operatively connecting said lever and fols lower rod for imparting step-by-step movement to the lamer by actuation of said push button. v

5.` A pencil comprising in combination, a casing having a ti t through which a crayon is adapted to be ed, said casing having a side wall aperture, a follower rod slidahly mounted in said casing and adapted to propel a crayon through said tip, a push button rried by the pencil and slidably mounted in said aperture, and means, comprising a lever through whichV said follower rod `extends, for operating Vsaid follower rod by manual operation vof said push button.,

6. A pencil comprising in combination, a casing having a tip through which a crayon is adapted to be fed, a follower rod slidably mounted in said casing and adapted to rorpel ya crayon through said tip, a push utwhich said io ower rod extends, and means lor operatirug` said follower rod by manual operation of said push button.

7. il pencil comprising in combination, a casing having a tip through which a crayon is adapted to be ted; a follower rod sli ably mounted in said casing and Napted to propel a crayon through said tip; a push Ibutton carried by said casingy and through which said follower vroel extends; and mea s, including a lever through which said lo lower entends, for operating said follower r by manual operation of said push button. p

8. A pencil compris in combination, a casing having a tip through which acrayon is adapted to be led, a follower rod slidably mounted in said casing end adapted to pro-a pel a crayon through vsaid tip, n member mounted within said eosin ier loitudinal mounted nenrer to the tip then to the opini-1 eite end oil the pencil for movement toward the unis of seid casing, means -tor moving the push element awey from the unis ci the mechanim within seid und opende e by depression oli seid push ,isc

said casing and throughextending throu h the tip of said casmg,

means operable y said elementand comprising a toothed follower element for forcing the crayon through said tip,and spring means biasing said element toward one of its positions.

ll. A pencil comprising in combination, a casing' having a tip through which a crayon is adap to be fed, an element movably mounted with respect tosaid casing at a position nearer to the tip than to the opposite end oi the encil and accessible from the exterior of said casing, means comprising a pawl for normally preventing a crayon from being forced into said casing,

m inclu ,g said pawl and operable by said element for feeding a crayon throu h said tip, and spring means biasing mid e ement tow one of its positions.

l2. A neil comprising in combination; a casing having a tip through which a crayon 1s vadap to be t; releasable means carried by said casing for preventing movement of a crayon inw fly thro A gli said ti zu' means, comprising a push element accessile from the exterior of said casing i :i moun for movement towa the axis ing a crayon outwardly through said tip own `depression oli said push n means call@ into action upon further depression oi' said push element tor reling said reieble means to pet a cruyon to move inwardly through said tip, and nf. for -mo the push element away from the anis of the casing. lh. .h pencil comprising in combtion, a casing having a tip through which n crayon is adapted to he ted, a follower rod slidably mounted in said casing and adapted to propel a crayon through said tip, an ele ment movably mounted with respect to said casing at eil-position nearer the tip than to the other end or? said pencil and eccessible from the exterior ot the pencil tor mmual operntion, e lever mounted within seid casing and operable by said element, and means including a pawl rod und ratchet moche nism operatively connecting lever and follower n lo, il. pencil comprising in combination, a cesing heving e tip through which e l .F cre ron is to he feel, a rollower rod sli nbly mrnmtenl in said c and adapted to e crayon through seid tip, an element movebly mounted to said casing et a position the tip than to the other end of the L-encil and noble the enmrior ofthe pencil for manuel operetion, spring menne biasing miti elefment tovveid one of its entions, e member? loei end follower M whereby reciprocating movement ot eeitl member impeite longitntlinnl oneven-feed movement to seid tool, end opeietive connections between seid element en memizeix l5. A pencil comprising in combinetion9 e. casing having e tipv tlnongh which n cindvon is adopted to be im, n follower roel eli eloly mounted nn seid easing end @adopted to propel e cmyon through seid tip en element moveloly mounted with respect to seid casing et e position nearer the tip thon to tlie otliei enel oi Seidl pencil end eocessilile from the exmi'ioin of time pencil toi mennel opeintion9 e leveia mounted within seid cee- Mme-ee ing enel extending ecifose seiol tollovvei' tomi, Seid leveil being opei'nlole loy eeiol l element,

endl menne operatively connecting mini leven ing e side Well epeitnie, n ollovvei nodi to eliolebly mounted in seid easing ond ndepted to propel e eioyon through seid tip9 en eiement cei'i'ieal by the pencil enti movnlily monntm in seid oportuno, endl menne, comprising e lever thi-ongli which Seidl i'ollovvei 35 rod extentie, foi' operating eeiol follower nodi by manuel opei'etion of seid element ln testimony Wheieoi Il hereto etin my y ectnetion of eeid'.,

Images