US2390541A - Writing implement - Google Patents

Description

H. c. KLAGGEs WRITING IMPLEMENT Filed March 1S, 194s 'Hel-1r E. Klgges,

Dec. l1, 1945.

t vPatented Dec. ll, 1945 WRITING IMPLEMENT Application March 16, 1943, Serial Niall-79,305

15 Claims.

My invention relates to writing implements 'of the type more famlliarly known as fountain pens.

0ne object of my invention is to reduce the amount of metal employed in the construction ,of the writing point element.

A further object of my invention is to employ a feed-bar as apart of the pen assembly and to associate with such feed-bar a small metabwrit'-A ing tip member or point mounted or supported with 'respect to the forward end of theV same'.

A further object of my invention is to wholly enclose the feed-bar in a Isheath which may form a continuation of atubular element of a character heretofore employed, withv a pen point, as a unit insert for fountain pens, so that the com# plete structure constituting my present improvements may be applied to the barrel of a fountain pen in a manner exactly like the application of said unit inserts. t

A further object of my invention is to so mount the writing point with respect to the end of the feed-bar-loosely or permanently secured in placesthat when the feed-bar and writing point are associated with the enclosing sheath. the writing point will be ilrmly heldin such manner as to permit its nib portion to freely iiex when in the actof writing. t

A further oblect of my invention is to employ a writing point in the form of a blfurcated metal member providing separate nibportions and so associated with the feed-bar and sheath as to properly nex in the act of writing. i

A further object of my invention is to provide a form of writing tip or point of metal of chan` nel shape arranged to lie in a groove at the forward end of the feed-bar after assembly with the sheath, and to be permanently attached to the latter in a manner that will align its channel with the capillary passage of the feed-bar.

A further obiect of my invention is to provide a, form of writing tipor point made of a doubled wire, half-round in cross section, and having a looped end iltting over the reduced end-oi a feedbar, with the space between the substantially parallel ngers which constitute the nibs and which space may be tapered, in line` with the capillary passage of the feed-bar. v

A further object of my invention is to provide the sheath enclosing the feed-bar with an air vent communicating with the capillary passage of the feed-bar.

Anda still further object of my invention is to employ material of a thermosetting or` thermoplastic type for the feed-,bar and the enclosing sheath whereby the writing point of metal may (ci. isos-sz) iii be permanently sec ed to one of said elements by a heat treatment'.

These and `other features Aof my invention are more fully set forth hereinafter; reference being had to the accompanying drawing, more or less diagrammatic in character, in which:

Figures is a side elevation, partly in section.

of an improved writing implement within the scope of my inventiomsuch view showing the tubular sheath enclosing the feed-bar with which the writing point is associated audits relation with the barrel of a foimtain pen.

Figs. l* and lb are cross sectional views` on` the lines a-a and b-b, respectively, Fig. 1, on a t larger scale. l a

Fig. 2 is a sectional view on a larger scale oi'x thetubular sheath-forming' part of my improved writing implement and illustrating another form of writing point which'may be employed there- Figs. 3, 4, 5 and 6 are cross sectional views on the lines .m-nL Iv1v, v-v `aus vI--v1, Fig. 2. respectively. -v

Fig. 7 is a plan view, and Pig'. 8 isa side elevation, partly in section, of the form ofi-writing pointshown in Fig. 1; both views being on a slightly larger scale. f l I Fig. 9 is a perspective view of theform of writing point shown in Figs.' 'I and 8.

rig. 1o is s plan view of s blank, and mg. 11" is across-sectional view of a writing point made from the same of the type illustrated in Fig. 2.Y

Fig. 12 is4 a perspective" view ofA anotheriorm of writing point made of metal .wire within the scope of my invention.

Fig. 12* is a cross sectional view on' the line Fig'. 12.

Fig. 131s s pian v1ew,and Fig. 14 is s side eievation, partly in section.` of another form of metal writing point within the scope of my invention.

Fig. 15 is aplan view, and'Fig. 16 is aside elevation, of still another form of metal writing point within the scope of my invention.

Referring tothe drawing, andmore particularly to Fig.- 1, my improved writing implement comprises a feed-bar i0: a writing point Il associated with the forward end of the'same, and an enclosing sheath i2: the latter having an opening through which the writing point projects. As illustrated, the structure follows what may be termed a streamlined taper. although it will be understood that the sheath may have parallel walls throughout its extent with a suitably tass peres ens and that the feed-bar may be similarly When these feed-bars are employed as part of unit elements or inserts, such asset forth in my patent referred to. they are received into tubular shells or thimbles which are usually threadedly engaged with the end of a fountain pen barrel. In the present instance I make use of this shell or thimble construction and the sheath I2 which encloses the feed-bar is a continuation of such shell or thimble, which is indicated at I3, and has a threaded portion I3 for engagement with the end of the fountain pen barrel A.

'I'he writing point shown in Fig. 1 is in the form of a bifurcated member of lmetal wire, and may be of the type illustrated in Figs. 7, 8 and 9. This form of my improved writing point comprises a section of half-round metal wire of a character suitable for writing purposes. and may be of gold, silver, stainless steel, or any other available metal, semi-precious or otherwise. In addition, it may be tipped with an iridium point in a manner substantially like the tipping of gold and other pen points with iridium or other wear-resisting metal. As shown in Figs. '7, 8 and 9, this half-round wire is bent to form a. pair of ngers substantially in parallel relation, indicated at Ila and functioning as nibs; such fingers by preference being slightly separated by a space IIb, tapering from the point toward the rear end of the same. Such rear end. which includes the loop IIc of the doubled wire, is bent substantially at a right angle V as indicated at I0 to provide the usual capillary passage and vent for ink and air, also longitudinally grooved on its underside as indicated at IIib, and its body provided with semi-annular grooves Illc communicating with the groove IB". The forward end of the feed-bar is deeply grooved at ltd, in line with the groove Ill* forming the capillary passage, and the writing point II is received in this groove IIld, as clearly illustrated in Fig. i; the space IIb between the finger nibs at the rear end of the same being aligned with the forward portion of the groove IIIs which has an extension III'm disposed beneath the writing point. A recess or socket I0 is formed in the feed-bar at the junction between the capillary passages I0* and I0, and the depending portion ild of the writing point is fitted into the same. Such inserted end may be cemented in place or, as the feed-bar is usually made of some `form of thermosetting or thermoplastic body, the writing point" may be firmly secured thereto by a heat treatment of the same.

The end of the feed-.bar is preferably of tapered form as illustrated in Figs. 1 and 2, and it is snugly enclosed by the sheath I2 comprising the extended portion of the shell or thimble I3 fitting the end of the pen barrel A; such shell being detachably mounted with respect to the pen barrell as-the unit inserts before referred to. The

lsheath extension I2 is tapered to nicely and snugly fit over the tapered end -of the feed-bar, as indicated at |21', and it is provided vwith an open end I2 through which the writing point extends. A small reservoir or chamber is provided at the forward end of the sheath for the collection of ink in additionA to the reservoir formed by the semi-annular grooves I0 ot the feed-bar and the longitudinal communicating groove l0 on the under side of the same.

In order that the fingers which constitute the nibs of the writing point shown in Fig. 1 (or writing points of the type shown in Figs. 12-16) may,

be separated during iiexure thereof in the act of writing, the inner and upperwall of the sheath I2 at the open end of the same may be provided with a wedge-shaped projection I4, longitudinally thereof, which overlies said fingers or nibs and' is in nominal contact therewith in line with the space between the salme, as indicated in Fig. 1. When vpressure is applied to the writing point in the operation of writing, the forward end of the same rises slightly with respect to the sheath and upon the fingers contacting with the beveled faces of the wedge-shaped projection I4, they are spread sufficiently to insure the flow of ink to the paper-contacting end of the writing point whereby writing of any character may be eected including shaded strokes desired 'by many penmen.

The construction of my improved writing implement illustrated in Fig. 2 is similar in most respects to that shown in Fig. 1, except that the form of writing point shown in Fig. 2 may be developed from a blank of the type shown in Fig. 10, comprising a strip I5 of suitable metal having a pair of rounded projections I5'L in spaced relation at the forward end of the same; a'slot Il"` lconstituting a pierce hole, and a narrow projection or tab I5c at the opposite end. This strip of metal is bent into channel shape, as shown in Fig. 11; preferably with a rounded upper surface, and the rounded projections I5 are brought into meeting relation and constitute the paper-engaging portion of such writing point. The metal between the pierce hole and the writing tip may be slit or not, as may be desired. The narrow projectionv or tab I5 at the rear end of the strip is bent upwardly away from the writing point shank and is connected to the sheath I2 in such fmanner that the writing pointmember will lie in the longitudinal axis of the same and occupy the groove IIlt at the forward end of the feed-bar.

` and the opening for the passage of such projecting tab may be subsequently 'sealed in any suitable manner to insure proper anchorage andnn mounting. The central space longitudinally of the channel-shaped writing point illustrated in Figs. 2 and 11 is in alignment with the groove I0* forming the capillary passage of the feed-bar.

In the form of writing point `illustrated in Fig. 12, made of half-round metal wire. the looped end of the same is shown as developed in the form of a ring, indicated at Il, and this ring may be slipped over the reduced end of a feed-bar I8 and rest against a shoulder I8*l of the same. I'he writing point may be similar in all other respects to the form of writing point illustrated in Figs. 7, 8 and 9, and it will lie in a groove I 8b formed at the end of the feed-bar in the same manner as fthe writing point illustrated in Fig. l, with the be extended beneath the nib portion of the writ-l ing point. as indicated at |84, Fig. 12.

v In Figs. 13 and 14 I have shown another form of writing point which may be formed from a strip of fiat metal I0, which is slotted or slit at Il* to form separate fingers 20", which function accessi as nibs: suchslot or slit being widened toward ger nibs will also align with the groove forming Ithe capillary passage of a feed-bar. when mounted in the same. d

In Figs. l and 16 I have also shown another form of writing point, indicated at 2|, made of half-round metal wire, which is shaped or bent to provide the desired tapered space between the fingers 2|'l which function as nibs; such space being indicated at 2lb. In this construction, the

looped portion 2|c is bent downwardly and then rearwardly substantially in a plane parallel with the main portion thereof; providing an extension 2|'i for engagement with a feed-bar and in such relation therewith that the capillary space of the latter will be aligned with the tapered space between the fingers. For this purpose the feed-bar may be socketed to receive the end 2 ld.

. 'I'he several forms of writing points illustrated may receive at their paper-contacting ends pellets of iridium or other wear-resisting metal, welded thereto, and subsequently slit in accordance with well-.known practice. Such application is indicated by dotted lines in Fig. 7, which may be considered as illustrative of all forms of writing points shown.

In assembling my improved writing implement, a writing point, which may be any of the types illustrated, is placed in the groove at the forward end of the feed-bar and in such relation that a small portion of the writing. point will extend beyond the sheath extension into which the feed-bar with the writing point is entered.

`Such writing point may be anchored to the feedbar. in the manner illustrated in Fig. l, with the upper portion substantially ush with the'upper surface of the same andwlth the space between the fingers of the writing point which constitute the nibs aligned with the capillary passage of the feed-bar for the proper flow of ink to the paper-contacting portion of such writing point.` These writing points may be permanently fixed to the feed-bar by cementing the same in placeor, since the feed-bar will be usually of some form of thermosetting or thermoplastic material. they may be confined thereto by a heat treatment. On the other hand. the writing point may be relatively loose with respect to the feedbar, with a rear projecting portion engaging a seat in the feed-bar and being held thereto in the grooved end of the same and4 in proper position for writing purposes by the sheath i2 forming an extension of the shell or thimble i3 fitting the end of the pen barrel. v

In the construction illustrated in Fig. 2, the writing point is anchored to the sheath; such form of writing point lying within the groove at the forward end of the feed-bar and projecting through the opening at the forward end of4 the sheath.

The shell or thimble Il with the sheath extensionfll. may be made of any suitable form oi' plastic material: synthetic or otherwise. or it may be made .of metal. without departing from my invention.

The feed-bar may be of hard rubber; usually employed for the purpose. or it may be made' of any suitable form of plastic material. synthetic or otherwise. While I prefer to employ a feed-bar of the type or character illustrated in my patent before referred to, which will have- .the semi-annular grooves as illustrated -in said patent to form a storage reservoir for ink and'a longitudinal groove on the underside of the feedbar communicating Iwith said semi-annular grooves and leadingto the space |24 within the sheath at the forward end of the feed-bar directly communicating with the under portion of `the writing pointany roi-m of reed-ber which win provide a reservoir for excess inl:` is within the scope of my invention.

It will be understood of course that when a` tapered or streamlined sheath is employed enclosing a similarly shaped feed-bar that 'the writing point will be slightly curved longitudinally to follow the curver of the feed-bar and sheath.

For the purpose of insuring access of air to theink reservoir within the pen barrel during a writing operation, the sheath is provided with a suitable aperture or vent, indicated at 25,'for the entrance of air as the ink is displaced from said reservoir.

While I have showny and described with some.

` particularity the construction and operation of my improved writing implement, it willbe understood that modifications may be made in the same without departing from my invention; all of which is deemed to be within the scope of the appended claims. v

I claim: f

1. In a writing implement, the combination with thel barrel of a fountain pen, of an openended tubular member in engagement with the end ofthe same, a feed-bar snugly tlttingl within the tubular member and conforming throughout with the contour of the same, and a section of metal carried by the feed-bar and projecting through the end ofthe tubular member in position to serve as a writing point.

2. In a writing implement, the combination with the barrel of a fountain pen. of a tubular member in engagement with the end of the same; said member having a tapered tubular extension integral therewith projecting beyond the end of the barrel and having an open end, a feed-bar snugly fitting within the tubular member; said feed-bar conforming throughout with the contour of the same and extending substantially to its outer end. and a section vof metal carried by the feed-bar and projecting through the end of the tubular extension in position to serve as a writing point.

3. A structure as set forth in claim 1, wherein the writing point element is loosely mounted in the end of the feed-bar and confined between the end of the same and the tubular member.

s. A structure as set forth in i, wherein the writing point element is in the form of a bifurcated member comprisingiflexib'le fingers of half-round wire with their fiat faces in juxtaposed relation and functioning as ibs withtheir rear ends integrally connected.

7. A structure as set forth in claim 1j, wherein the tubular member is tapered and the feed-bar member.

9. A structure as set forth in claim 8, wherein the tubular member is provided internally with a projection at its outer end arranged to overlie the blfurcated metal writing point longitudinally thereof and in position to spread the fingers of the same when pressure is applied thereto in the operation of writing.

l0. 'Ihe combination, of a feed-bar of plastic material, a metal writing point element of bifurcated form comprising half-round wires with their dat faces in juxtaposed relation and providing a pair of flexible nngers constituting' nibs anchored in the end of said feed-bar, and an open-ended sheath enclosing `the feed-bar and 2.890.541 V i i o t the writing point and confining the latter in position with respect to the feed-bar. v

11. A structure as set forth in claim 10, wherein the feed-bar tapers at its'outer end and is enclosed in a complementally tapered sheath closely ntting the same. I

12. A structure as set forth in claim 10, wherein the writing point is in the'formof a metal vwire bent to form a pairv of ilexibleflngers constituting nibs. with the bight of such wire bent angularly with respect to said fingers and anchored in the feed-bar. v

13. A structure as set forth in claim 10, with a wedge-shaped projection carried by the sheath and overlying the bifurcated writing point ele-y ment and serving to separate the nibs of the same when pressure is applied in the operation of writing.

14. A writing point element for fountain pen structures comprising a bifurcated member of half round metal wire having a pair of separated fingers functioning as nibs; said nib portions having iiat faces in .juxtaposed relation and terminating in an integrally connected projecting portion for permanent association with a feed-bar support,

15. A writingpoint element for fountain pens,

comprising a section of metal wire half-round in cross section and bent to form a bifurcated mem? ber having a pair of fingers functioning as nibs; said nib portions having flat faces in juxtaposed relation and terminating in a connecting loop or bight bent angularly for permanent association A with a feed-bar support.

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