\ Oct. 22, 1946. J. GREGG FOUNTAIN PEN Filed Oct. 10.' 1944 « gan., .LES_ È ¿g/2091 2,409,847 ` Patented O¢:t._`22,l Y l i l f ori-‘ica ' UNITED? STATE S Í ` PATENT 2.469.841 FoUNTAm PEN Jon Gregg, New Hope, Pa. Application 0ctober__1'0, 1944», Sci-iai No. 557.951 » 14 claims; . - 1 (01120-543) Y - , This invention relates to fountain pen. 2 » manipulate and reiill. and which shall be prac An object of this invention is to provide a fountain pen employing a paste-like writing‘sub stance and ‘comprising a barrel provided with a` Worm rotatably mounted therein, said worm being“ adapted to be rotated from the rear of-the instru ment to press the writing substance to the writing Other objects of this invention will in part be obvious and in part hereinafter 'pointed out._ j ¿ 'I'he invention accordingly consists in the-A fea tures of construction, combinations of elements,` point of the instrument. ned in the construction hereinafter described, and ' ' Another object of this invention is to provide a writing _instrument of the character described provided with a ball point and means to press tical and eiilcient to a high degree in use. ‘ and arrangement of parts which will be exempli- _ of which the scope of application will be indicated in the following claims. _ » l In the accompanying drawing. in which is Writing medium to the point. _ . shown one of the various possible illustrative em Still another object of this invention is to pro bo diments of thisinvention, V Y ' vide a writing instrument of the character de-Fig. 1 is an axial cross-sectional view of a writ scribed provided with means slidably mounted 15 ing instrument embodying the invention; i thereon to cover the -writing point when the in Fig. 2 is a Partial View 0f the writing'instru strument is not in use, said covering means being ment with the closure means retracted to expose ' retractable to expose the writing point for writ the writingpoint; Y f . ing. Fig. 3 is a cross-sectional view taken on line A still further object of this invention is to 20 3-3 of 2:. provide a writing instrument of the character de Fig. 4 is a crm-sectional view taken on line scribed having a writing head which may be un 4_4 of Fig.' l; ‘ screwed from the barrel, and a collapsible reñll Fig. 5 is a view similar to Fig. 2 but illustrat tube containing writing substance which may then ingamodiiledconstriiction; l be screwed onto the barrel and the writing sub-> 25 ~Fig. 6 is a front end view of a fountain pen stance pressed into the barrel. The tube may embodying the invention and still further modi then be unscrewed from the barrel and the writ fled; insr head rescrewed onto the barrel. ` Fig. 'I`is a top plan view- of a modiñed form of . Yet another object of this invention is to pî'o- ì retainer for the writing point of the instrument; vide a writing instrument of the character de 30 Fig. 8 is a. view similar to Fig. 5 and illustrat scribed comprising a barrel, a` tubular liner within ing yet another form of the invention; the barrel, a worm rotatably mounted in the bar Fig. 9 is a front end view ofthe structure shown rel and contacting the liner, and means to turn the worm within the barrel, the barrel, the tubu rig. ioisaside vieworuie structuresncwnirr> ~ lar liner, and its turning means being removable 35 Fig. 8 with the closure cap retracted; and as a unit from the rear end of the barrel, and Fig. 11 is a top plan view, partially in cross Íreplaceable therein, whereby to permit a, new section, of the writing instrument with the vwrit unit containing an additional supply of writing ing head removed and a reñll tube screwed onto the barrel.-: medium to be replaced within the barrel. . ' Referring. now in detail to the drawing, Il) Yet a further object of this invention is to inFig.8; provide al writing `instrument of thecharacter described comprising'a barrel provided with an. inner hner of compressible material and a worm within said barrel pressing against said liner to prevent leakage around the worm blade. ~ ` ‘ . A stilll further object of this invention is to pro vide in a >writing~ instrumentv’oi’ the character de scribed, means to permit turning of the worm only . ü " ' designates a writing instrument embodylngthe invention. The same comprises a cylindricalV barrel Il having an externally screw threaded Aportion i la at its rear end forming a shoulder 45 lib. At its front end the barrel lil is formed with an .internal screw threaded portion I3. . forming a recessedinner shoulder i4. " - In the drawing the reduced end edge of Vbarrel li is designated -by numeral llc. Screwed onto in thev direction for feeding writing substanceto 50 the'rear end of theiiarrel is a rear end member ' the writing point of the instrument. ' Yet another object of this invention is to'pro vide a strong, durable and compact writing instru-> ment' of the character described which shall be~ relatively inexpensivev to manufacture, easy to >llid. Member lid is formed with an internally . screw threaded portion llc adapted to be screwed’ to the screw threaded portion Ila of the barrel. The forward end` Ilf of member lid contacts` shoulder lib of the barrel. Member _lid is fur 2,409,811 a , > ' , 3 thermore, formed with à shoumer lig oppositev tube 4I is a ball retainer 55. ' The same maybe inade of spring wire and is ln the 'form o1' a key the endIIc of the barrel. Interposed between surfaces IIc and IIg is hole shaped loop havinga substantially elliptical ` a washer IIh. Member IId formed with a through opening I2. At its rear surface it is' central portion 55 and LIL-,shaped end portions 51. The end portions 51 rest on shoulder 4Ib at the also formed with an annular >internal groove 23 for the purpose hereinafter appearing. Member IId is also formed with an inner cylindrical surface lli coextensive with the inner surface front end of member 4I. , I Illc of the barrel Il. ball 50. The spring serves to press the -ball » against the rim 51 of member 50 at the opening 10 Within the barrel II is a tubular or cylindrical 4 liner I5 made of rubber or compressible synthetic i Mounted on portion 5s 'of the spring Isr» 'is a" 53. The writing medium employed in the pen is in paste form. The same may be in- the ‘form of an ink or a graphite composition _or any other material.- The liner I5 extends from the shoulder I|4 and contacts -surfaces Ilk and I I1; The tube suitable writing medium. I5 flts snugly within the barrel. N Within the tube I5 is a. worm I5 having a worm will be pressed forwardly through passage 45 and -past spring 55 into the chamber 55 formed be tween the ball 60 and the shoulder 4Ib. _As a person; writes with the instrument, the ball 60 blade I1 pressed against the ~inner surface' of tube I5. At the rear end of the worm is a_cylin- ` ‘ Upon turning the handle 25 the writing medium drical head I8 and extending therefrom is a stem. will rotate and carry writing medium around I9 passing through the opening I2. Stem I9 is 20 so as to provide a supply of writing substance to the ball point. It will be noted that the worm formed with a reduced ratchet portion 29 dis „posed .beyond the rear surface of the barrel II, Y can only be rotated in a direction for feeding and with a further reduced screw threaded end writing medium toward the ball pqint;f~\ Means is provided to enclose the writing groove 23 is a washer vor vgasket 24 surrounding 25 point, said means being retractable to expose stem I9 to prevent leakage through said opening said point. To this end there is mounted on the head 4I a tubular member 10 having a cylin I2. Surrounding said stem I9 is also a washer portion 2l beyond the ratchet. In the annular 23a contactingthe inner surface of member IId. drical portion ‘H surrounding portion 4Ia of the ,Screwed onto the screw threaded portion 2l is» tube 4I, and projecting into the cylindrical a head, cap or handle 25. Said cap 25 is formed 30 groove 49. with a recess 26 on its underside and with a screw The forward end 'IIa of member" 10 is tapered to a point and is formed with radiat threaded opening _21 extending from the recess ing slits 12 thereby providing a plurality ot seg to receive the screw 2|. ‘ The stem I5 is prefer ments 13 which may be spread open. On the rear end of member 50 is an external annular ably formed with a shoulder 28 contacting .the bottom wall of recess 2=5 so that the cap 25 will 35 rib 14 engaging the inner surfaces of the seg ments 13.7 Between the segments 13 and the cylindrical wall 1I is an inwardly extending an surface 25a`ôf cap 25 presses washer 24 to seal nular rib 15 forming an annular external groove ' opening I.2 when said gap contacts shoulder 28. 15. Within said groove is a split ring 11. It will It will now be understood that upon turning the cap, the worm I5 will be turned therewith. 40 now be understood that when member 10 is pressed forwardly thesegments 13 close up to Fixed to the rear end of the barrel is a pivot cover the writing point as shown in Fig. 1 of the pin 30 and pivoted thereon is a pawl 3l engag-r drawing. When member 10 is retracted the seg ' ing the ratchet teeth 20. A suitable spring 32 ments 13 are opened up by the annular rib 14, and serves to press the pawl 3I against the ratchet 20 so that the'worm can only be turned in a di 45 the cylindrical portion 1I is received within the groove‘49. The rib 15 of member 10 may snap rection for feeding writing substance downwardly ' into thegroove 48 to'retain member,10 in re in the barrel toward the writing point, as will tracted position, as shown in Fig. 2 of the draw appear more fully hereinafter. ing. ^ ` Screwed onto the barrel II is a writing head 'I'hewriting' instrument may be refilled with 40. The writing head 40 comprises a tubular 50 writing substance by unscrewing the head 4I , and member 4I having an external screw threaded screwing onto the barrel, in its place, a reñll portion 42 screwed into the screw threaded por not be wedged tight against the barrel. The end tion I3 of the barrel. . The screw threaded por tion 42 has an end surface 44 contacting shoul.-- I tube 99. The reñll -tube 80 may be of the col- ` lapsible type and is provided with a screw der I4 and‘also contacting the forward end of 55 threaded neck- 8i which may screw into the screw threaded portion I3 of the barrel. After tube I5, thereby »retaining said tubewithin the the tube is screwed onto the barrel, the tube is barrel. Member 4I is furthermore formed with collapsed or pressed, to squeeze or press the con a `tapered through opening 45. At its forwardV tents into the barrel. After the barrel is re ' end itis formed with a shank'4la having an ex ternally screw threaded front end portion 45 60 filled with writing substance the tube 80 may be unscrewed therefrom and the writing head'4n forming an external, recessed shoulder 41. Mem rescrewed onto the barrel. x ber 4I is also formed with an annular groove 4l It will be understood that by unscrewing at therear end of shank 4 I, spaced from shoulder 41, for thev purpose hereinafter appearing. It is ` member IId from the barrel, the worm member also formed with a~ cylindrical axial groove 49 65 25 and the tube 'can be removed as a unit from the barrel. Another unit filled lwith writing extending rearwardly of shank 4Ia. Screwed substance may then be replaced into the bar onto screw threaded portion 46 of member 4I, and rel, thereby serving as a reñll for writing contacting shoulder 41, is a tip 50. 'I'he tip 50 is medium. The liner tube I5 serves as a container formed withl an internally screw threaded por tion 5I i engaging the threaded portion 45. It is formed with a forwardly and inwardly curved wall 52, and has a central opening- 53 at the front end thereof. Wall 52 has outer and inner curved surfaces 52a, 52h extending to the rim edge 51 at opening 53. On the forward end of for the writing medium. T_he front end of the vtube may be closed by any suitable capping ma-terial which may be removed prior to insertion into the barrel. ` 1 - If desired, furthermore, member IId may be made integral with the barrel as one piece and :sarcasmA - 5 . in such event the inner liner tube I5 aswell-as . the worm A may be inserted through the 'front the nib upon turning «the worm within the barrel. 2V. A writing instrument comprising a barrel, end of the barrel. With such construction the re- _ .a >worin within the barrel, said writing instru ment having a nib, a paste-like writing substance adapted to be pressed toward the nib upon turn illling would be accomplished by means ofthe reñll tube 80 as illustrated inFig. l1. In Fig. 5 there is shown a pen |0a illustratingV a modified construction. ing :the worm within Ithe barrel, and a Itubular Pen I 0a is similar to ' liner of compressible material within .the barrel pen i0 with theexception that the ball 60 is re and contacted by the worm. placed by an ellipsoid shaped vwriting point 90. The writing' point 90 may be held in place by a. 1_0 spring retainer 55 or by an annular plate formed with aA central opening 92 shoulder IIb. and ` ‘ resting om _ . , ~ 3. A writing instrument comprising a barrel, a worm Within the barrel, said writing instr-ument having ß nib, a tubular liner Áof compressible ma terial within vthe barrel and contacted by thel worm. and means at the rear end of the barrel to TheV rear» end of writing point ' 90 partially projects into the opening 92. -The ‘ turn said worm. _ >writing point is formed with a plurality of longi 15 4. 'A pen comprisinga' barrel, a tubular liner tudinal grooves 93' through which the writing medium may pass to“the front end of the point. within` the barrel, a worm within the barrel and contacting said liner. and a writing head .screwed to the barrel and retaining said ltube in said groove preferably terminates short of the _front end of the writing point. barrel. » ' ' In Fig. 6 there is shown a pen |0b illustrating 20 5. A pen comprising a barrel, a‘ tubular liner another modified form of _the invention. The within the barrel, a worm within the barrel and pen |0b is similar’to pen |0a except that it is - provided with an ellipsoid shaped writing point contacting said liner, a writing head screwed to the barrel and retaining said tube in said barrel, and a-ball point at the forward end of the writing 95 which has no grooves. The pen is provided » with a member` 50a similar to member 50v except 25 " that at the opening it is formed with a_ plu-'` rality of small notches 96 _to permit writing medi-um to'pass through to the forward end of the writing point 95. head. ‘ ' 6. A pen comprising a barrel, a tubular liner within the barrel, a worm within the barrel and l contacting said liner, a writing head screwed to _ In Fig. 'l there is shown a washer 91 to replace 30 the spring 55. Washer 91 hâs >an annular flat -plate formed with a central opening 91a on _which the ball 00 rests. The writing medium À. may pass through openings 98 in the washer, to" the point. 35 In Figs. 8, 9 and 10 there is shown a pen |0c illustrating yet another form of the invention. »the barrel and retaining said Itube in said barrel, a ball point at the forward end of the writing head, and means at the rear end of _the barrel and con nected to Ithe worm for turning .the worm within ¿ the barrel.v f - '1. A pen comprising a barrel a paste-like Writ ing substance within the barrel, a tubular liner within the barrel, a Worm within the barrel and contacting said liner,- a writing head screwed to The pen |0c is the same as the p_en |0 with the the barrel and retaining said .tube in said barrel. exception that there is substituted for »the closure a ball point at the forward end"of the writing 4 means 10 a modified closure means |00. ‘I‘he 40 head, means at the rear end of the barrel and closure means |00 comprisesa tube |0| at the `connectedto the worm for turning the worm front end of which is a diaphragm. The dia `within the barrel; and means to prevent rotation g phragm |02 has radial slits |03 to form segments . of the- barrel in a direction to force‘this writ |04. The diaphragm may be nxed to the front ing substance back from .the ball point. w end of the tube in any suitable manner. Tube 8. A pen comprising a barrela paste like writ |0| is provided with an inwardly extending an ing substance'within the barrel, a worm within nular-rib |05. The rib |05 contacts rib 14 to pre the barrel, a writing head at the front end of the vent the closure means from coming oil' the pen. barrel, a ball point the frontend of the ywriting Also rib |05 may snap into .theannular groove head, a worm within said barrel, and means at 491:0 retain the closure means in retracted po ` 50 the rear end of the barrel to rotate the Worm. sition. The rear end of the tube |00 may be 9. A pen comprising a barrel a paste like writ formed with longitudinal slits |06 so that .the Jing substance lwithin the barrel, a wormv within tube will have resiliency at the rib |05.- When ’ the barrel, a writing head at the front end of the-the tube |00 is retracted the segments |04 open barrel a ball point at the front end of the writ f up and the ball passes therethrough so it is ex 55 ing head, a worm within said barrel, means at the posed fcr the writing operation. The rear end rear end of the barrel to rotate the worm, and a of tube |0| enters the groove 49 when lthe tube ' paste-like writing substance within the barrel is retracted. adapted to _be pressed toward the writing point ' It will thus be seen 'that' there is provided a g upon turning said worm within said barrel. device in which the several objects of this inven 60 Y, 10. A pen comprising a barrel> a paste like writ ' tion are achieved and which is well adapted to ing substance within the barrel, said barrel hav. meet the conditions of> practical use. ing .an internally screw threaded portion at the As various possible embodiments might be front end, and a 'rear wall at its rear end, a worm madeA of the above invention, and as4 various , changes might be made` in the embodiment above a5 within said barrel, a stem at the rear end ofsaid worm, said rear wall having a through opening, set forth, it is to be 'understood that al1 matter herein set forth or shown in the accompanying- . through whichl said stem passes, 4afn'iember fixed drawings is to beinterpreted as illustrative and . to said stem-for turning said worm, a Ytubular not in a limiting sense. " . writing head having `external Ascrew threads Having thus described my invention, I claim as .m screwed to the screw threaded portion'of said - new and desire to secure by Letters Patent: l. A writing instrument comprising a barrel, a worm within the barrel, said writing instrument, ~ barrel, an annular tip> member screwed to the forward end of said writing head, ¿said tipi mem ber being vcurved forwardly and inwardly and be having a nib, and a paste-like writing substance ing formed with a central opening, a ball within within the barrel adapted to be pressed towards 15 said tip member, and means within the tip Vmem l 7 , _ ' ` A l 2,409,134? f' ' b_er to retain the .ball at the opening in said ti member. 11. A pen comprising a barrel a paste like writ ing substance within the'barrel, said barrel hav ing an internally screw threaded portion at the front end, and a rear wall at its rear end, a worm within said barrel, a stem at the rear end oi' said worm, said rear wall having a through opening, through which said stem passes, a member ñxed writing lsubstance within the barrel, a worm therein, a writing head attached to the barrel, a ' tip member attached to vthe forward end oi’ the writing head, said tip member being formed with a _centra1 opening at its front end, a writing point within said tip member, and means to retain the writing point partially projected through said opening. - 13. Apen comprising a barrel a paste like writ to said stem for turning said worm, a tubular 10 ing substance within the barrel, a member at writing head having external screw threads . screwed'to the screw threaded lportion of said tached to the rear end of the barrel, a worm with in the barrel, and rotatably mounted on saidl member. and means on said member to rotate barrel, an annular tip member screwed to the forward end of said'writing head,_said tip mem the worm within the barrel. ’ 4 v ber being curved forwardly and inwardly- and - 14. A pen comprising a barrel a paste >like writ being formed with a central opening, a ball with ing substance within the barrel, a member at in said tip member, means within the tip member tached to ,the rear end of the barrel, a worm to retain the ball at the opening in said tip mem vwithin the barrel, and rotatably mountedon said ber, and a tubular _liner within said barrel con member, means on said member to rotate the tacting the worm, said writing head having means 20 Worm within the barrel, a writing head attached to contact the tubular liner to retain the same to the front end of the barrel, and a writing point within said barrel. ' , A >at the front end of said writing head. „ . ` 12. A pen comprising a barrel a paste like . - JON GREGG.