US494769A

US494769A - Fountain-pen

Info

Publication number: US494769A
Authority: US
Publication date: 1893-04-04
Anticipated expiration: 1910-04-04

Description

2 Sheets-Sheet (No Model.)

L. B; WOOLFOLK.

FOUNTAIN PEN.

PatentdApr. 4, 1893.

w a a r K w a F a 4% w A E W a Jr m 0 Z 'of the feed apparatus.

.NITED STATES PATENT Fries.

LUGIEN B. VVOOLFOLK, OF NENARK, NEl/V JERSEY.

FOUNTAIN-PEN.

SPECIFICATION forming part of Letters Patent No. 494,769, dated April 4, 1893. Application filed February 18, 1893. Serial No.462,834. (No model.)

a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Fountain-Pens; and I do declare the following to be a full, clear, and exact description of the invention, such which it appertains to make and use the same,

reference being had to the accompanying of my invention. 5 section of a fountain pen showing my invendzawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention belongs to that class of fountain pens in which a stopper fitting in the lower end of an ink-holder carries a pen, and a feed-tongue to convey ink to the point of the pen. It is my aim to make a fountain pen which will flow readily, not leak, be

easily cleaned, and not liable to get out of ;ters.

order. This is effected by means of the construction set forth in this specification and sive, I will now describe my invention.

the accompanying drawings.

The accompanying drawings are on an en- 1 closed at the upper end by the plug B.

Q C designates the tubular point sectionrof the ink-holder joined to the barrel A by the The barrel A and the point,

larged scale, the better to represent my invention.

Figures 1 to 8 inclusive represent the preferred form of myinvention. Fig. 1 isalongitudinal section of a fountain pen representing my invention. Fig. 2 is a sectional plan of the lower part of the same, showinga horizontal section of the point section, and a plan Fig. 3 is a cross section of the same through the

line

1, 1, of Fig. 1, looking from the point of the pen. Fig. 4 is a cross section of the same through theline 2, *2, of Fig. 1, looking toward the point of the pen. Fig. 5 is a perspective view of thestopper. Fig. 6 is a perspective view'of the stopper seen from another angle of observation. Fig. 7 is a perspective view of the ink-rod. Fig. 8 is a perspective view of the pen. Fig. 9 represents a modification of the stopper. It is a plan view of the same. Figs. 10 to 15 in clnsiverepresent a modification of my invention. j Fig. 11 (Sheet 2) is a longitudinal section of the lower part of a fountain pen repres'enting m'y invention. Fig. 10 (Sheet- 1) is a crosssection of the same through the line 3, 3, bt Fig. 11, looking from the point of the pen. Fig. 12 is a cross section of the same .screw joint 6.

through the line l, 4, of Fig. 11,1ooking toward the point of the pen. Fig. 13 is a perspective view of the ink-rod and feed tongue as seen from beneath. Fig. 14 is a plan view of the pen which is straight in the wings thereof and not flared. Fig. 15 is a perspective view of the stopper as seen from beneath,

showing the projection, the stop-check thereas will enable others skilled in the art to ion, the longitudinal hole therein, the lip, the

; ink gatherer,and the slot in thelip. Figs. 16 to 19 inclusive represent another modification Fig. 16 is a longitudinal tion. Fig. 17 is a plan of the stopper and feed apparatus. Fig. 18 is a cross section of Qthe same through the line 5, 5, of Fig. 16, 5 looking from the point of the pen. 5 a cross section of the same through the line 1 6, 6, of Fig. 16, looking toward the point of Fig. 19 is the pen.

Similar parts are designated by similar let- Referring especially to Figs. 1 to 8 inclu- A designates the barrel of the ink-holder,

section C together constitute the ink -holder; though the ink-holder may consist of a bar rel only, closed at-the upper end, and having a stopper fitting in the lower end thereof.

B designates the ordinary protecting cap, fitting on a cap-flange provided on the lower end of the ink-holder and on the upper end thereof.

E designates the stopper fitting in the point section. The stopper E is provided with the transverse slot F constructed entirely within the circumference thereof. In this transverse. slot is held the pen G, which is provided. with the ink aperture g in the heel thereof, which consists of a single slot, though it may have more than one slot or be a series of holes. The lower end of the point section is reamed out to provide therein the enlarged antechamber I'l back of the. pen,and the enlarged ink cup I below the pen. The ink cup Icomprises all the space beneath the pen below the lower end of the stopper. The antechamber H extends back of the pen from the lower end of the stopper down to the end of the point section.

In order to make the bore of the point sec tion suiiicently large to hold the stopper E,

the lower end of the barrel A is countersunk for the purpose of receiving the screw joint 7 c, by which means the screw maybe made greaterthan theperipheral diameter :of :the

barrel A and:second'thepointsection isnnade so 'short that thereamed ;portion thereofcontainin gatheantechamber and :theiinkeup .is

withinrthe r-said enlarged cap.-flange,:so that the heel'of the pen iswithinthe-screwjoint. that joins the zpoin't section to :the Tbarrel.

The reaming ipreferabl-yaextends up to :the lower endof the stopper E; but, where1pre-- ferred,it-'may'stop short-oftthatpoint. The; object o'f the reamingristo so -enlargeithe ink cup "as togive it s-uflicien't capacity to hold overflows-ofdnk, and tosoienlarge the ante:

chamber Has to allowr'the-free passage of air through it to the air inlet 0. The reaming: should extend far enough :in -doc-accomplish: these results.

The. pen G is preferably flared inathe-wing thereof, so as to touch the reamed portion of the point section at theLlower-end thereof. But this flaringis:notessentialrto the objects: of my invention, and the pen may be constructed without any flare ifpreferred.

In this construction, 'a projection integral withihe: stopper extending down adjacent-to the back lof the-pemandccut awayon the/cop; side thereof constitutes the feed-tonguerK. ;It is also flattened on the .bottom :side :thereof, and at theupper en'dof the bottomside thereofit is cut away,-so as to leave asrnall space be-. tween it and therpen.

:L designates .the ink conduit: between the pen andthe feed-tongue. K. a

M designates a wide longitudinal groove provided in thestopper backof the pen. The groove M I as is here .re-presentedz extends :at; the top thereof from the upperzendofthe: stopper E down almosttothe lower end .of the same. The, groove may extend entirely to: the 'lowerzend of the stopper atlthe top there-1' of or 'cut through the-same. It.-iSSl1ffiCl(-}Ilti forthe purpose of my invention that it shalt extend at the top thereofidownlto about the lower end of'lthe stopper.

tongue K, where it is designated 6 how of ink tothepen.

i-he-inkholder is-designated-the air inlet 0.

The narrow slot e extends down into the feed- This slot 6 in the feed-tongue serves for the alternate passage of air into the barrel and the Whentheante'chamber H contains ink, the ink therein passes to the poin'tof the pen thruugh the slot 6 and when air is passing into the ink-holder it passes through the vslotle las wellzas rthrough thelair :inlet 0, so t'thatitheslot 1 e =-serves thus upon occasion -to enlarge the :airzinletzfor the passageof air.

P designateaa longitudinal hole :provided in :the stopperrbelowithe speu. :Inthe ;longi-. tudinal hole 1 aiS heldtheiinkn'od R; in which is provided athe -.ink :outlet "S by cutting-:a groove into the ink rod .--from:the 1430p :SidQ thereof, and intersecting this rgrcove Joy 1a transnerse eut made :efrom-the lOWBf BlldfOf the ink rod. Thesecommunicatingcutsform aipassage :for ink from the ink :aperture G and from the ink-holder down into :the ink cup. I, *leadin g: overflowsrofiink treadilye to the ink' cup RtOibB held :therein. The 25in]: trod -I The diaphragm e is cut throughv extends down -.to.aapoin tgjust belowt-he slitzin thetpen; but it may stop: short .of=thatpoint,

extending down into theinlrcup I, and which by partially filling up thesinkieup, reducing itsacapacityandf increasing its surfacathereby causesitzto' hold ink :by capillary attraction. Thestop-check u upon/[he projection T limitsathe:entranceof:the stopper into the ink-holder. V

In practical operation in this construction, ink QfiOWSu'tO :the pen through thelongitudinal groove :M, the ink lduct. N, and the ink conduit. L; and also through .the ink :outlet S, :and the .ink;apertu-re g in attic-pen, and l on through the ink; duct N. toward-the point of.the pen.

Air entersthe ink-holder through the ante-chamber 1'I,:the air inlet- O,-and along 1 the ;topof;the longitudinal groove-M. Overflows of 2 inkpass freely into:the-ink cup,=and are held therein till gradually fed to the point of the pen. Aportion of the ink in theink cup is fed to the pen by the ink-rod B. Another portion will pass by capillary attraction around the edge of the stopper E to the top side of the pen, where it is fed to the pen through the ink conduit L.

My construction presents a number of important advantages First. The longitudinal groove M extending down about to the lower end of the stopper carries ink in a full flow down to its lower end, and thus makes the stopper for the passage of air and ink practically a disk or diaphragnntnaking the ink duct very short, and reducing the air inlet 0 to a mere line at the top thereof. This shortening of the ink duct and air inlet prevents them from drying out and stopping the flow of ink, aslong passages do, and thus prevents all failure of ink'flow and all skipping. But with this construction ink would gush out through the narrow slot 9 were it not prevented: first, by the narrowness of the slot 6 which both limits the outflow of ink and the inflow of air; second, by the antechamber H which catches and holds out'gushing ink and seals up the air inlet as a water seal, thereby stopping the outflow of ink-out of the ink-holder, by preventing the inflow of air, as well as by catch ing the ink.

Second. Another advantage of my const ruction, is while the construction of the broad longitudinal groove M gives the stopper all the advantage of a disk or diaphragm for the ready passage of air and ink, the length of the stopper affords a firm and secure bearing for the pen and the ink-rod, holding them both firmly.

Third. Another advantage of my invention is the construction by which overflows of ink are readily led to the enlarged ink cup Land held therein till gradually fed therefrom to the pen.

Fourth. Another advantage of my construction is the enlargement of the ink cup to a capacity sufficient to hold overflows of ink, and thereby prevent leaking.

Fifth. Another advantage of my construction is partially filling the ink cup by the projection T, and thus causing it to hold ink by capillary attraction, for the ink cup would be too large to hold ink without its dripping therefrom, if it were not partially filled up by the projection T. The projection T here extends to the lower end of the ink cup, though it may-stop short of it if preferred, and it may also be constructed in any suitable shape that may be desired.

Sixth. Another advantage of my construction is the forming of the antechamber H, and enlarging it by reaming out the lower end of the point section so that it gives free passage of airto the air inlet 0. The antechamber H serves the double purpose of allowing the passage of air through it as aforesaid, and of catching and holding overflows of ink and scaling up the airinlet. If the antechamber were not enlarged by reamingout the lower end of the point section, the space back of the feed-tongue K would constantly be filled with ink held therein by capillary attraction, preventing the admission of air to the air inlet. To prevent this, it is necessary to ream out the anteohamber to such a diameter that ink will not be held therein by capillary attraction.

Seventh. A special advantage of my construction is enlarging the cap-flange of the point section, and so shortening the point section that the reamed portion thereof comes within the enlarged cap-flange; so that it is capable of being reamed sufficiently to enlarge the ink cup and the autechamber to the size necessary for their proper and efficient action. Without enlarging the point section, and so shortening it that the reaming comes within the enlarged cap-flange, the lower end of the point section could not be reamed out sufficiently to enlarge the ink cup and the antechamber so as to make them adequate to the performance of their function. My invention does not consist merely in reaming out the lower end of the point section, but especially in so constructing the point section, by enlarging and shortening it, that it is capable of being adequately reamed out.

Various modifications may be made both of the form of my fountain pen and also in point of structural detail without departing from the principle. of my invention.

A modification of the stopper is represented in Fig. 9. This modification consists in dispensing with the broad longitudinal groove M, and extendinga narrow slot like 6 constituting the air inlet and ink duct, up to the upper end of the stopper. In all other respects this stopper is substantially similar to the preferred form.

The modification represented in Figs. 10 to 15 inclusive is, in allits general featu res, similar to the preferred form. It has the stopper E thelongitudinal groove M the diaphragm e,- the narrow slot 6 containing the ink duct N and the air inlet 0, and the slot e the antechamber H back of the pen, and the ink cup Ibeneath the pen, both enlarged by reaming out the lower end of the point section; it has also the longitudinal hole P; the projectionT; and the stop-check it. This modification also has the lower end of the barrel countersunk to receive the screw joint 0; and the point section is enlarged and shortened to admit of the adequate reaming out of the lower end thereof. But it differs from the preferred form in a number of particulars:-

First. The broad longitudinal groove slightly cuts through the top of the stopper at the lower end thereof, thus somewhat enlarging the air inlet 0 by a lateral extension. This form, I find by practical experiment, will not cause the pen to leak, provided. the cut is not too deep into the diaphragm c.

ink rod, and the finger r is integral with the bottom side thereof. The ink conduit L is a groove in the top side of the feed-tongue and ink rod. The ink outlet S is formed by cutting a groove in the bottom side of the ink rod which communicates with the transverse cut in the lower end of the ink rod.

Third. Ink is conducted to the pen by the feed-tongue K beneath the pen.

Fourth. Back of the pen is a projection integral with the stopper cutaway on the top side thereof. The upper part of said projection, extending down almostv to the slit in the pen, is designated the lip V, which fits close upon the back of the pen, so as to prevent the passage of ink and air between them; the penin this modification being straight the wings thereof not being flared. The lip is cut away on top for the purpose ofv forming the antechamber I-I,.as in the preferred form, so as to allow the passage of air through it'to the air inlet. The lower part of said projection integral with the lip V is the ink gatherer \V, which is. cut away on the bottom side thereof and flattened, and which is not intended to conduct ink from the ink holder to the pen, but to gather upon the back of the pen the ink brought by the feed-tongue K below the Fifth. The lower end of the point section is reamed out as in the preferred form. But the reaming does not extend entirely up to the lower end of the stopper. It extends, however, high enough to sufficiently enlarge the ink cup I to hold overflows of ink; and it extends high enough to cause the enlarged antechamber II to allow air to pass through it readily to the air inlet O; which are the only points essential in its construction.

In other particulars, this modification is substantially similar to the preferred form.

The mode of operation in this modification is readily perceived by a glance at the drawings. Ink is conducted to the pen by the longitudinal groove M, the ink duct N, the ink aperture 9 through the pen, and the feedtongue K below the pen; and air enters the air inlet through the antechamber H and passes on into the barrel.

- The modification represented in Figs. 16 to 19 inclusive is. similar in most respects to the preferred form as regards the feed apparatus.

First. The chief special difference in the feed apparatus is below the pen, where the longitudinal hole P and the ink rod R are dispensed with, and the ink outlet S is provided by extending the narrow slot 6 below the pen. It is not necessary for the longitudinal groove to extend below the pen for this purpose; but

as it is formed with a circular saw it is more conveniently formed by extending it below the pen. The narrow slot e constitutes the ink outlet below the pen. lower end of the stopper below the pen, so as to communicate with the ink cup I, and conducts ink from the ink aperture g, and from the ink-holder to the ink cup I. It works It cuts through thevery well, as I find by practical experiment; its only inferiority to the preferred form being a slowness in returning ink from the ink cup to the ink-holder when the pen is reversed.

Second. In this modification the ink-holder consists of a barrel without a point section. The cap-flange on the lower end of the barrel is made as large as practicable, so that the periphery of the protecting cap has a greater diameter than the periphery of the barrel. By this means the point section is capable of being reamed out at the lower end to a certain extent; but the reaming cannot be so deep as where a point section is used.

In other particulars this modification is substantially similar to the preferred form.

I have received a patent for improvements in fountain pens No. 457,470, issued August 11,189l,in which are some pointsof similarity to my present invention; but that patent has no longitudinal hole P, andit has neither the ink rod R, the ink outlet S, the ink cup I, the projection T, nor the antechamber H. Nor does the longitudinal groove M in that patent extend to the lower end of the stopper. Nor has it the sides of the heel of the pen grooved in the transverse slot Fabove the diaphragm e. Nor does the ink aperture g perform the office in that patent of passing ink to the point of the pen and to the ink cup, but it only serves to return ink to the barrel. I have also had a patent No. 481,090, issued August 16, 1892, in which are some points of similarity to my present invention.

But that patent has not the features peculiar to my present invention, the feed-tongue back of the pen integral with the stopperthe longitudinal groove M extending to the lower end of the stopperthe stop-checkttconstructed upon the projection T-the ink rod Rthe enlarged ink cup Ithe antechamber II-nor the lower end of the ink-holder reamed out to enlarge the ink cup and the antechamber.

I do not wish to claim anything set forth in those patents, but only those features which are new and peculiar to my present invention.

What I claim is- 1. In a fountain pen, the combination with a tubular ink-holder ream-ed out at its lower end to form an enlargedink cup, of a stopper having a feed-tongue adjacent to the pen, a transverse slot entirely within the circumference thereof, a pen held in the transverse slot, an air inletback of the pen, an ink duct whereby ink may How to the pen,and an ink rod having a passage through it whereby ink maybe conveyed to the ink cup, all substantially as described.

2. In a fountain pen, the combination with an ink holder closed at the upper end,,of astopper held in the lower end of the inkholder, a pen held in the stopper, a feedtongue adjacent to the pen, a narrow slot in the stopper back of the pen containing an air IIO inlet in the outer portion thereof next the ink-holder, and an ink duct in the inner portion thereof next the pen, an antechamber formed within the ink-holder by boring. out the lower end thereof to a larger-diameter than the bore in which the stopper is held, through which air passes to the air inlet, and which catches ink and seals up the air inlet in out gushes of ink, and ducts and passages whereby ink may iiow out of the ink-holder to the point of the pen, and air may enter the ink-holder.

3. In a fountain pen, the combination with an ink holder closed at the upper end, of a stopper held in the lower end of the inkholder, a pen provided with an ink aperture in the heel thereof held in the stopper, a feed.- tongue adjacent to the perk-said stopper provided with a longitudinal groove back of the pen, and also with a longitudinal hole therein below the pen, a rod held in the longitudinal hole provided with an ink outlet therein, an ink cup below the stopper beneath the pen enlarged by reaming out the lower end of the ink-holder to a larger diameter than the bore in which the stopper is held, and ducts and passages whereby ink may fiow out of the inkholder to the point of the pen, and air may enter the ink-holder.

i. In a fountain pen, the combination with an ink-holder closed at the upper end, of a stopper held in the lower end of the inkholder, a pen held in the stopper, a feedtongue back of the pen integral with the stopper, an ink cup beneath the pen below the lower end of the stopper enlarged by reaming out the lower end of the ink holder, an ink outlet below the pen through which ink may flow to the ink cup, and ducts and passages whereby ink may flow out of the ink-holder to the point of the pen, and air may enter the ink-holder.

5. In a fountain pen, the combination with 'an ink-holder closed at the upper end, of a stopper held in the lower end of the inkholder, provided with a longitudinal projection integral with the bottom side of the stopper, a pen held in the stopper, a feed-tongue back of the pen, an ink cup beneath the pen and below the lower end of the stoppersaid projection extending down into the ink cup, and ducts and passages whereby ink may flow out of the ink-holder to the point of the pen, and air may enter the ink-holder.

6. In a fountain pen, the combination with an ink-holder closed at the upper end, of a stopper held in the lower end of the inkholder, a pen held in the stopper provided with an ink aperture in the heel thereof, an .ink cup below the pen, an ink outlet below the pen communicating with the ink aperture in the pen through which ink may flow to the ink cup, and ducts and passages whereby air may enter the ink holder, and ink may flow out of the ink-holder to the point of the pen.

7. In a fountain pen, the combination with an ink-holder closed at the upper end, of a stopper held in the lower end of the inkholder provided with a transverse slot therein for holding the pen, a pen held in the transverse slot, a feed-tongue back of the pen, an ink cup below the pen enlarged by reaming out the lower end of the ink-holder, said pen provided with an ink aperture in the heel thereof for passing ink toward the point of the pen, and toward theink cup, substantially as described.

8. In a fountain pen, the combination with an ink holder, of a stopper held in the lower end of the ink-holder, provided with a transverse slot for holding a pen extending entirely within the circu Inference th erect, a feedtongue back of the transverse slot, a longitudinal groove back of the pen longer on the top side than the bottom side thereof, a diaphragm in the stopper below the longitudinal groove, a pen held in said transverse slot passing through the diaphragm, and, above the diaphragm, having the sides of its heel grooved in the transverse slot, substantially as described.

9. A fountain pen having an ink-holder closed at the upper end, a stopper in the lower end of the ink-holder provided with a transverse slot constructed entirely within the circumference thereof for holding a pen, and also provided with a longitudinal groove back of the pen slot, a diaphragm in the lower end of the stopper below the longitudinal groove, and an air inlet back of the pen cut through the diaphragm-said ink holder provided with an enlarged antechamber in the lower end thereof back of the pen formed by reaming out the lower end thereofall substantially as described.

10. A fountain pen having an ink holder closed at the upper end, a stopper in the lower end thereof provided with a transverse slot for holding a pen, a longitudinal groove back of the pen slot, a diaphragm closing the lower end of thelongitudinal groove,a narrow slotcut through the diaphragm and extending down below the stopper into a projection located back of the pensaid ink-holder provided with an enlarged antcchamber back of the pen formed by reaming out the lower end thereof all substantially as described.

11. A fountain pen, having the ink-holder reamed out at its lower end, astopper having a projection extending through the reamed out portion of the ink-holder leaving an ante chamber between the top side of the reamed out portion of the inkholder and said projection, apen located beneath the projection, an ink passage extending through said stopper back of the pen, and an air inlet in the stopper back of the projection, the air inlet communicating with the ink passage and the ante chamber, substantially as described.

12. In a fountain pen, a stopper having a transverse pen slot extending entirely within the circumference thereof, a longitudinal groove back of the pen longer at the top side than at the bottom side thereof, an air inlet Mar-i threaded, and reamed out at its lower end, with a stopper havinga transverse pen holding slot extending entirely through the same from end to end, a pen located in said slot and having its heel extending within the screw threaded portion of the point section, and suitable ink ducts and air passages, all substantially as described.

In testimony whereof I affix my signature in presence of two witnesses,

LUCIEN B. WOOLFOLK. Witnesses: j

LAURA B. HOLDERBY, J. A. ADAMS.