US1365131A - Fountain-pen - Google Patents

Description

H. I. UPT'ON.

FoIINTAIN PEN. APPLICATION FILED MAR. 26, 19.20..

1,365,131. Patented Jan. 11, 1921.

pen;

UNITED STATES HENRYJ. Ur'roN, onwnsrivrnnronn, MASSACHUSETTS.

, rouiv'rAINfr-EN.

Application ld Marclrf, 1920. Seria1-No. 369,115.

To all whom t may/concern: 4

Be it known that I', HENRY J. vUrfroN, a citizen of the Ilnited* States, l residingv at West Medfor certain new and .useful Improvements in Fountain-Pens, of which the following is a specificati-on. s kMy invention isan improvement in fountain pens of the type in which the writingy point or pen proper isretractedwithin'the fountain when not in use and the open end ofthe fountain closed by a capotV special 1 l f fountain Vof the pen/and Bthe cap, having construction. z l j In such pens .heretofore constructed, the

cap was designed toscrew onto theopen end of the fountain, after'the pen point had been;

retracted, until a conical plug, secured witlrin the closed end ofthe .capA was forcedinto the open end of the .fountain'to close'it. It was'early found desirable to provide a pro- Ajecting rod or guard centrally disposed in the conical end of the plug and designed to engage the pen carrier in case the pen had not been retracted, so as to prevent the cap being forced on, to the damage of the pro jecting pen and thus to guard the pen point. Limitations of room and strength compelled the employment of metal for the purpose of fashioning this guard or part,y and limitations of cost and strength rendered 1t impracticable to use gold or other non-corrodible metal as the material. The consequence was that the ink, which reached this metal guard, speedily attacked and corroded it, rendering the substitution of a new cap necessary, as the expense of extracting the old plug and broken guard madel it profitable to substitute a new cap rather than to repair the old cap. f

My present invention consists in the provision of a specially shaped ink feed-bar in a pen of the character described,` so that a suitable guard of hard rubber or wood may be used in place of the metal guard, the hard rubber guard being of sufficient size to have the necessary rigidity and being much more permanent owing to its non-corrodible character, than the metal guard.

In the drawings:

Figure 1 shows the pen end of a fountain pen of the old construction, with the cap applied, in sectional elevation;

Fig.` 2 is a similar view of my improved Fig. 3 is a similar view of the cap; y

in' the county ofi` `Middlesex and State of Massachusetts, have invented rection'of ythe arrows; `f

Fig. 4l is a` `view ons an enlarged scale, partly in section, of the pen .end of" Figp2- with the pen projected,`the grooves ofthe feed-bar being shownin dotted lines; j

hFig; 5 is a view ofthe feed-bar and oar- .rier of Figli, from below; i

`on an enlargedscale and looking iin the di- Fig. i7 shows the feedebar of Fig. 6 ona scale s'tilllalger.: F ig.k 8 isa sectionkofthe" vSpecicatien of lLetters Patent. i Patented J 11` 1921;.

Fig. 6 is a section on line 6-6 of Fig. k2, 1

feed-'bar of: Fig. `lf onV the scale .of Fig.` 7. In the drawings, Fig. 1, A' represents the at itsinner enclosedl .end aconical plug '0,

f I) the gold pen. vhe openend of the fountarnqA 4carries afpen carrier, the rear end al ofiwhichis'shapedto fit and slide in the interior of ,the Open end ofthe fountain:

and ithe forward .endl of `which is shaped,

witha `central'apxial pro'jectingmetal guard substantialjly'as shown to form a feed-bar y c. vThe slideal and its associated feed-bar a2 and pen point P may be moved lengthwise of the fountain to retract and project the pen, by a bar, a4", projecting throughthe rear end of the fountainpA groove is formed'in the'upper surface of al and a2 at a3. All this is as usual in pens of this type.

In Fig. 2 is shown a pen 'fitted with my new slide and feed-bar and carrying the large hard rubber guard. A represents the fountain, B the cap having its inner end closed and carrying at its inner closed end a conical plug,` Z), with a central axial projecting guard l of vhard rubber or wood or the like, of relatively large diameter. In f the open end of the fountain is mounted a slide the rear end of which al is of a size to fill the interior bore of the mouth of the fountain when the pen point is projected.

The feed-bar 2 is formed with an ink groove a3 upon its upper surface, as above described and its lower surface is also grooved, as at 22 to receive the guard l, and at the base of the feed-bar, and in thecenter of the face of the slide a1 is preferably formed a recess a5 to receive and center the end l1 of the guard l, when and if the cap is placed upon the fountain, before terial such as hard rubber or Wood, not affected injuriously by the ink nor corroded thereby.

In all prior constructions of the retracting pen type it has been necessary to form or position the feed-bar entirely to one side of the axis of the slide or carrier member in order that there might be ,opportunity for the metal guard to engage the slide or carrier at or near the axial center ofthe face of the carrier and in consequence the feed-bar was necessarily reduced, in thickness and could not be made of the sturdy dimen sions desirable in a part which must be adjusted from time to time, in repairs and to give the desired ink lovv. In my improved device the sides 2x of the ink bar vare increased in depth, stilening the bar sothat it may be manipulated as desired and at the same time forming a groove 22 on the bottom of the feed-bar 2, to receive the large guard 1 of non-corrodible material. In operation, the

l guard l will contact (see Fig. 2) or almost contact (see F ig. 6) With the feed-bar 2,

rendering mutual support against any possible tendency of the guard l to buckle and the end l1 of the guard in contacting With y the carrier al Will enter therecessa5 and be erred form of the under groove, in which the groove is deep enough to receive a large part of the guard, the end of which is received and centered in the axial cavity in the yface of the slide, and in Which when endWise pressure is applied to the guard, the feed-bar gives support to the guard against any tendency to bend. The sides of the unlder groove have the effect of stiffening the feed-bar and making it possible to enlarge the grooves untilonly a ve i thin partition separates the upper and un er grooves. the bar in cross-section having roughly the shape of the letter H (see Fig. 7) this necessary stilness of the feed-bar being given by the sides 2X of the feed-bar and not as is customary by the part beneath the ink groove, or, inother Words the stiffness being givenby the side members of the H and not by the cross member.

I claim:

In a fountain pen, the combination of a feed-bar, grooved upon its upper surface for ink, and'having a longitudinal recess upon its under surface to receive a non-metallic guard attachment to the cap; that cap and guard.

Signed aty Boston, Massachusetts, this.

25th day of March,

i HENRY J. UPTON.

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