Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1706399 A
Publication typeGrant
Publication dateMar 26, 1929
Filing dateOct 30, 1926
Priority dateOct 30, 1926
Publication numberUS 1706399 A, US 1706399A, US-A-1706399, US1706399 A, US1706399A
InventorsDesemo Joseph F
Original AssigneeDesemo Joseph F
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Magazine pencil
US 1706399 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)


Filed Oct. 50, 1926 2 Sheets-Sheet Mild Ll m I INVENTOR Jose /7 ED650770 WI/m ATTORNEY March 26, 1929.

J J. F. DESEMO MAGAZINE PENCIL Filed Oct. 30, 1926 2 Sheets-Sheet 2 INVENTOR Jaw 0h P0656070.

A TTORNEY Patented Mai-.26, 1929. I W


PATENT omen.



Applicgtion filed October 30, 1926. Serial No. 145,180.

substances of different kinds, means for selooting any desired one of said kinds of sub stances, means for placing said selected substances in marking position, and means for securing the unselected substances at rest. Specifically my device in its preferred and illustrated form comprises a barrel enclosing a rotatable cylinder and guiding means, a retatable screw shaft on which a traveler functions as holder and propeller therein, carriers co-operating with said guiding means, each of said carriers being adapted to carry a lead and each of said carriers being adapted to be moved by said traveler out of retracted posi- 7 tion into alignment with an opening and toward said opening to project the lead carried thereby through the opening into functional position. The arrangement of parts is preferably such that the rotatable cylinder is held against rotation when one of the leads is in functional position. 7

Other objects and advantages of the specific form of the invention illustrated will appear as the description of the accompanying drawings proceeds. However, I desire to have it distinctly understood that I do not intend to limit myself to the exact details shown or described, but that I intend to include as part of my invention all such obvious changes and modifications of parts as would occur to a person skilled in this art and as would follow within the scope of the claims. For example, the device may be adapted for the carrying of cylinders containing different kinds of fluids,

such minor details being additionally provided as would accommodate the structure to the handling of the non-solid marking sub-,-


In the drawings:

Fig. 1 is a longitudinal fragpientary see tional View of a pencil.

' Fig. 2 is a similar view but with one of the writing elements in functional position,

Fig. 3 is a fragmentary perspective view 0 the guide cylinder that supports the leadcarr1ers.

Fig. 4 is a perspective view of the pencil in which the manner of manually operating the selective mechanism is illustrated.

Fig. 5 is a cross sectional view .on the 5'"5 of Fig. 1'.

Fig. 6 is a cross sectional view on the line 66 of Fig. 1.

Fig. 7 is a cross sectional view on the line 77 of Fig. 1.


" Fig. 8 is a longitudinal sectional view of one of the lead carriers.

Fig. 9-is a perspective view of the lead selecting and projecting mechanism, the parts thereof being shown separated.

' Fig. 10 is a cross sectional view of the top and eraser parts of the pencil on the line 1010 of Fig. 1. v

Referring in detail to the drawings:

1 designates thebarr'el of the pencil, having an open upper end 2' and being provided near Q the upper end with openings 3 and'window 4,

the lower end 5 being externally screw threaded for engagement with tip 6 which serves as the writing end of the pencil. The tip 6 is provided with the bore 7, the bottom wall 8 of which has a tapered circular threat 9 adj acent its periphery, the tip having acha'nnel 10 associated with said throat. The bottom wall 8 of bore 7 is provided with a recess-11 axiallydisposed thereto for a purpose later to be described.

The open upper'end 2 of the barrel 1 is provided with a cap 12 'detachably engaged.

therewith and having'internal' longitudinal recesses 13 for engagement of the cap with holder 14 having internal ribs 15 for securing an eraser 16 within said holder, the holder 14 having further details to be later described.

A disc-like bearing member 17 is removably positioned in the tip 6 closing the lower end of the barrel and resting upon the bottom wall 8 of tip bore 7, said'dise-like bearing, member 17 having a depending lug 18 adja+ cent to its periphery and .projectible into the throat 9 of said-bottom wall, the lug having an orifice 19 coinciding with the leadehanml 10 of tip 6; the disc 17 has projections-20 on its surface and a central opening 21 axially coincident with recess 11in bottom wall 8 of bore 7, and of less diameter than the same.

A- shaft 22 is provided having a reduced lower extremity 23 projecting into recess 11 f of the tip and rotatably mounted in the opening-21 of the disc bearing member 17, a bolt and washer element 24 serving to engage the shaft with the disc bearing member. The

shaft 22, and the upper squared end of said 51 greases shaft 22 is provided for part of its length parts of the surface of saidupper portion bewithanexternal screw thread of coarse pitch ing exposed through openings 3 for frictional 25 whereby the said shaft so rotatably erectcontact of agencies inserted into said openings ed is constituted a perpetual screw or worm. as will later be described. The lower portion The shaft 22 has an upper unthreaded por- 44 of said guide bundle is provided with tion 26 and terminates upwardly in a squared notches 47 having curved edges, adapted for end portion 27 which is removably engaged the engagement of projections 20 of the discwith the interiorlysquared downward prolike hearing member 17 with said lower porgjection 28 of the eraser holder 14, said ention 44, whereby the guide bundle is detachgagement providing that the rotation of ably latched with the bearing member again-st eraser holder 14 causes the equal and simul'taaccidental rotation; the mutual operation of neous rotation of the perpetual screw shaft said projections and said notched lower POT-7 22.

Associated with the upper portions 26 and step rotation of the guide bundle as will ap- 27of the shaft 22 is-a spool-like member29 pear. It shouldbe noted that the altitude of comprising a tubular body 30, an upper said projections 20 is less than the distance by flange 31 of such diameter as to contact the which the upper portion 43 of the guide buninner side of the wall of the barrel 1, and a dle 42 is spaced as indicated at 41 in Figs. 1 lower flange 32 of less diameter than said upand 2 from the upper flange 31 of the spoolper flange, the spool-like member 29 being like member29, for purposes associated with mounted on the upper unthreaded portion of the rotation of the guide bundle,

The guides'45 constituting the intermediate shaftprojecting beyond said spool-like memportion of guide bundle 42 are tube-like memher into engagement with the squared end of bers preferably struck inwardly and longi eraser holder 14, the eraser holder being. tudinally on a cylinder from which the guide therefore rotatably seated on the upper surbundle may be constructed and arranged in a face of said spool-like member. The spoolcircularseries being preferably equi-distantly like member is securedat a desired position spaced, the interior free edges of each in- Within the barrel to thewall thereof, so con-' struck tube-like. guide being spaced to form stitutinga bearing member for shaft 22j0urslots 48 extending longitudinally of the nagled therein by construction indicated, by guides and of the guide bundle. me ns of fingers 33 having slots34 engaged with the upper flange 31 of said spool-like are by uniformity of construction equally member by pins 35, the pins havingheads 3Q, spaced from the axis of the guide bundle; saidheads projecting into the slots 34, the and their inner edges are adjacent to but fingers being transversely slidable, because spaced froma cylinder erected on and exof the provision of the pin-and-slot arranget tended from the periphery of the lower flange Inent, into engagement with the barrel 1 by of spool-like member 29 and parallel with projection of the same into the barrel wall, the the shaft-22. The guides being by conbarrel having recesses 37 for the reception of struction interjected into the body of the the projected fingers. guide bundle 42, form interior shoulders The spool-like. member is thus secured in therein such as the shoulders 49 at the upper i the barrel asa bearing member for the shaft endsof the guides 45 as indicated by the dotadapted for co-operation therewith, indicia described.

and for the eraser holder, and also'is secured ted lines in Fig. 3. against rotation. The lower flange 32 of spool-like member 29 is provided/with aper able through the open ends thereof are lead ture 38, has a sector cut away whereby a notch carriers 50 shown in detail in Fig. 8 having is produced as indicated at 39, and has a lugs 51 projecting through the slots of said slightly beveled upper surface40, all for purguides, the lead carriers preferably having poses later to be'desc'ribed. closed upper end walls 52 and open lower Mounted rotatably within the barrel 1 and ends 53, and having longitudinal slots 54 exon the disc-like bearinginember'l'l an'dspaced tending from said lower ends a part of thefrom'the underside of upper flange-31 of the distance to the said closed ends. Leads 55 spool-like member 29 as indicated at 41, is aare provided to be carried by said lead carguide bundle 42 illustrated in Fig. 3, comriers, the end of a lead bbing embraced by prising a cylindrical upper portion 43, a cvthe slotted end of a lead carrier, such slotted lindrical lower portion 44 and an interme iend being preferably deformed to tightly grip ate portion consisting of guides 45. The upthe carried lead. f

per portion 43 has a. longitudinal dimension The rotatable guide bundle 42 is held yieldgreater v than the longitudinal measure of"ingly and controllably in engagement with openings 3 and window 4 of the barrel, and is the disc-like bearing 17 by means now to be 46, such as the description of colors, being p0 A washer 56 is provided slidably positioned \sitioned onsaidupperportion 43 for singleand on the tubular body 30 of the spool-like mems "successive visibility through Window. 4,;and her 29 and between the upper flange 31 and tion of the guide bundle 42 providing step by The guides, as may be observed in Fig. 3,

Slidably mounted in guides 45 and removits the lower flange 32 thereof; said washer being adapted to slidable positionin in the upper cylindrical portion 43 of gui e bundle 42, and seated on the shoulders 49 of guides 45. A compression spring 57 is provided, positioned interiorly-of said upper cylindrical portion 43, based against the upper flange 31 which has been described asremovably'se cared to the barrel'against vertical movement and against rotation. The sprin'g exerting its influence againstthe washer'56, the influence being transmitted to the guide bundle, thus holds the guide bundle in engagement with the disc-like beari-ng17 yieldmgly. Op-

laterally and perpendicularly withdrawing the notches therefrom, they process being facilitated by the structurev described, the

notcheslhaving curved edges. 'The guide bundle islpermitted to advance vertically while rotatin ,because of the spaced relation indicate at 41 with the bearing nge 31; andthe s ring, the influence of vlrich was pur efu opposed, tending to restore undle. The

and throughthe opening 38 of the lower flange 30 of the spool-like member 29, the

disc-like bearing'member having opening 67,

and'the lower endof said rod 66 into said opening, the, rod thus ing anchored by enga ement with said disc-like re ecting member and sai spool-like member 29, the

washer 56 being preferably provided withan openingwhereby the rod may be permit I .ted to-pro ect upwardly toward and against.

the upper flange 31 of the spool-like member washer 56.

bled,.each lead carrier havin a lead, each lead carrier being itioned m a guide, the guide bundle fi x "a' inst accidental rotation by engagement 0 its lower rtion with the projections of the disc-like aring, the spring 57 tending to retain the uide bundle b passage through saidopening68 of said Assuming the" parts describedto' be assem.

in engagement with the discike bearing j member, the traveler mounted on 'the'perpetual screw shaft and screw-movable -only, itq is now necessary to describe other features-of. the assembly,- and then to refer to operation,

" The lead carriers 50 are free to slide} in- 45'; con'siderin the *guide bundle .astsegregated from t e pencil. When the ;.'-.;'j- I vguide bundle becomes associated with the 1 other'parts of-the pencil, however, theleald, carriers, ascan be best observedin Fig. 2,

the gui e bundle to engagement with the are-retained adjacent the upper portions of.

bearing 17 upon cessation ofsuchjop osing influence and upon coincidence o said notches. 47 with projections 20, and to main'- tain such engagementagainstaccidental disturbance.

A traveler 58 constituting a lead projecting I member is mounted on shaft 22, the traveler having a cylinder-likeibody' portion-59 in-v ternallyscrew threaded with threads of the same pitch as the threads onthe' shaft 22 of which is to retain the traveler 58 from rotationon the shaft 22', the rod projecting scribed. The lower flange 32 of. spool-like member 22 is provided with an opening 38 being diametrically opposite the notch- 390f said lower flange 32, the bore,65 and the opening 38 being spaced, equally from the the spool-like member 29. v V

A'rod 66 is provided,'the chief function common axis of the body portion 59 and of through'the boi'e of the travelers flange the guide bundle, by the 06-0 eration of the lugs on the lead carriers with t e lower flange vofv the s ool-like member; the lead carriers being he d thus suspended and in such spaced "relation vertically that the depending leads lpossess maximum lengthproportion- 55 may ate to t predetermined dimensions of the barrel, theleads ing spaced from the diselike bearingmember. 17.

The lead carriers, therefore, are retained adjacent to the upper portion of the, guide bundle, by the bearing oi their lugs on the flange 32 that projects downward among the guides 45, the-extent of such projection being well shown in Fig. 2 and being measured by the distance between the washer 56 seated on the upper shoulder-s49 of guides 45 and the flange 32. Y

7 A difierence betwemg. 1 and Fig, 2 is that Fig. ;1 shows all the lead carriers 50 retracted osition, and equally spaced from the shoul ers'of the guides, while Fig. 2 v positiombeing advanced downwardly to pro- I Shows one of the lead carriers in segregated ect thelead into functional position in the tip of the pencil. In, Fig. 1, one lead carrier is'shown positioned adjacent to thenotch 32 in flange 32, the lug of the carrier being en-' gaged by the mouth 61 of the traveler 58, the

said notch. v

The upper face of the lower flangenorarm 60 of the traveler being projected into h s;

mally supports the lead carriers at rest by disc-like bearing member 17, one of the lead carriers is aligned with the notch 39, the notch is aligned with the point opening in the pencil tip t; the arm 80 of the traveler notch arranged for release of the raised can 58 being also in the same alignment. Another coinciding element entering the relations just outlined is the indicia 46, one of which, corresponding to and indicating one of the leads 55, appears at the window 4 of barrel lwhile the alignment prevails of indicated corresponding lead in its carrier with traveler arm 60 and notch 3 and of these with the point opening 10 in the tip 6. lhe rotation of guide bundle 42 brings about the positioning of the selected lead, the rotating guide bundle causing the lead carrier to circulate peripherally or the spool-like memher, the lugs of the lead carriers bearing on the upper surface of the lower flange of said spool-like member, the lugs in their circulation passing through the interposed mouth 61 of the traveler arm 60 projected into notch 39, the lower lip 62 oi said traveler arm serving as a bridge to prevent the downward passage oi lugs through notch 39, a carrier be ing aligned in the notch when selection occurs, the mouth 61 engaging the lug oi? said carrier.

The lead desired being selected and posi= tioned in alignment with the tip opening, and engaged with the traveler, is projected to and partly through said tip opening by the action of the traveler under the influence oi the perpetual screw shait22 as rotated by the rotation of the eraser holder 14-, shaft and holder being connected by squared members as described, or by rotation of the cap an chored on said eraser holder to produce cooperation in rotation.

The lead may be'retracted from functional position by reversal'of direction oi rotation of eraser holder whereby the screw thread 25 on the shaft 22 hits the traveler and the traveler lifts the lead carrier to the normalspacedposition from the top of the guide bundle, in

which position the traveler arm is in the rier and reception of another.

The pencil may be supplied with leads by insertion-of leads through the tip channel 10 and into successively projected lead carriers. The pencil may be disassembled by the withdrawal of the eraser holder from engagement. with the squared end ofthe screw shaft, the

withdrawal of fingers 33'thus ex osed from engagement in "recesses 37 of the arrel, and the lifting of the uide bundle from the barrel by means of t e shaft 22 the upper and lower bearings of which bear against the opposite ends of the guide bundle; theparts benvcaaee ing then separated, carriers filled, carriers withdrawnfrom guides if desired.

What I claim and desire to secure by lhetters-lPatent is y l. lln a mechanical pencil, a barrel, a cylindrical member rotatable in the barrel, said rotatable member havinga plurality of guides lid.

2. in a mechanical pencil, a barrel, a rotat I able member having a plurality of guides therein, a lead carrier mounted in each of said guides for movement longitudinall therein, a member supporting a plurality ot said carriers in retracted position in said guides, a

sha'i't rotatable in the barrel and co-axial therewith. a feeding member mounted on the shaft and movable thereby longitudinally therealong for moving with a selected carrier while moving saidcarrier lengthwise or: its guide out of and into retracted position, means for confining said ileeding member to a longitudinal coursein the pencil including a rod fixed in the barrel, and means to hold said rotatable member against rotation.

3. in a mechanical pencil, aloarrel, a rotatable member having a plurality or" slotted guides therein, a lead carrier mounted in each of said guides for movement longitudinally therein, and provided with a lug extending through the slot of its guide, a notched member adapted for the passage therethrough oil till the carrierlugs supporting a plurality of I said carriers in retracted position in said guides, a shaft rotatable 1n the barrel and co= axial therewith and means mounted on the shaft and movable thereby into the supportl ing member notch for engaging a carrier lug.

for moving one of said carriers lengthwiseoif its guide out of and. into retracted position,

, said supporting member and said means cooperating to select a predetermined one otj said carriers for movement but of retracted position upon rotation of said rotatable memher into a predetermined position.

4. ln a mechanical pencil, a rotatable memher having a plurality of guides therein, a lead carrier mounted in each of said lguides for movement longitudinally therein, each carrier having a projection, a member supporting a plurality of said carriersin retracted position in said guides and means including a shattcoaxial with'the rotatable member for moving one of said carriers lengthwise of its gulde into and out of retracted position, said supporting member having a gap therein and said means having a pair of spaced projections thereon adapted to enter said gap and engage with a projection on any one of said carriers to move the same out of retracted position.

In a mechanical pencil, a rotatable member having a plurality of guides therein, a lead carrier mounted in each of said guides for movement longitudinally therein, a member supporting a plurality of said carriers in retracted position in said guides, means for disengaging a selected carrier from the support, and means including a rotatable shaft for engaging one of said carriers and moving said engaged carrier lengthwise of its guide out of retracted position, said supporting member and said means eo-operating to return a carrier to retracted position and in engagement with said supporting member.

6. In a mechanical pencil, a rotatable mem her having a plurality of guides therein, a lead carrier mounted in each of said guides for movement longitudinally therein, a member supporting a plurality of said carriers in retracted position in said guides, means for disengaging a selected carrier from the supporting member, including means for moving said selected carrier lengthwise of its guide out of retracted position, said disengaging means including a shaft and a member movable on the shaft and being adapted to return a carrier to retracted position, the selected carrier being moved into engagement with said supporting member upon rotation of said rotatable member, said rotation releasing the carrier from the moving means.

7. In a magazine pencil, a barrel, a tip member engaged with the barrel having a lead passage parallel with the axis of the barrel and oiiset therefrom, a shaft extend ing axially of the barrel and rotatable there{ in, lead carriers movably supported within the barrel, means for aligning a selected carrier with the passage including means for removmg the selected carrier from the support, and means operable by the shaft for receiving a selected carrier and moving the same longitudinally in the guide member thereof for passing the lead through the passalge.

8. n a magilizme pencil, a barrel, a rotatable member aving an axial shaft-end receiving recess and a lead passage parallel with the axis of the barrel and offset there from, said tip member having a disk-receiving portion, a disk fixed in the tip having guide member-engaging ribs on its upper face and an opening coinciding with said tip passage, a shaft extending axially of the barrel and rotatably supported by. said disk, a rotatable lead carrier guide having a cylindrical portion provided with notches for engaging the disk ribs and a plurality of carrier-retaining members, lead carriers retained in said members, means supporting the lead carriers, and means including a member movable longitudinally of the barrel by the shaft for moving a carrier to pass a lead through said tip passage. I

9. In a magazine pencil, a barrel, a shaft rotatable therein,'a spool-like member having upper and lower disks removably end with the barrel, a collar slidable on said spool-like member between the disks, a coil spring urging said collar toward the lower end of the spool-like member, lead carriers annularly arranged in the barrel, means actuated by the shaft for moving the lead carriers longitudinally of the barrel, the lower end of said spool-like member being adapted to support the carriers, said spring-impelled collar being adapted to restrain the outward movement of the carriers yieldingly.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2476866 *Jan 21, 1946Jul 19, 1949Heyman Nicholas CMultilipstick holder
US6533483Nov 13, 2001Mar 18, 2003Avery Dennison CorporationMulti-media writing instruments and methods for their use
U.S. Classification401/32
International ClassificationB43K24/00, B43K24/10
Cooperative ClassificationB43K24/10
European ClassificationB43K24/10