US2336028A - Fountain pen - Google Patents

Description

l w. G. NICI-lol.` l 2,336,028

FOUNTAIN PEN Filed Jung 24, 1943 8 FI&Z.27 3 Flci'. 34 Z 33 29 32x22 2f 42 MGZ/#830 2311@ 3 I A. l 26. i, l n@ 4. LFI@ FIG: 6. FIG: 7.

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" Patentedl Dee. 7,4 1943 UNITED STATES vPATENT OFFICE William lijllhilphia, Pa. Application June 24, er-izllilo. 492,145

6 Claims.

The primary object of this invention is the y provision of a no-sack stylographicfountain pen`embodying'numerous novel features and advantages whereby its usefulness and serviceability are greatly enhanced.

Another object is to provide a stylographic pen of the indicated species which is capable of holding `a maximum quantity of writing ink, which is rellable in a minimum of time and by a simple operation.

A further object is the provision of a stylographic fountain pen wherein the iiow of ink can be regulated as desired, without any tendency to flooding of the point or the development of a blob or drop at the point and incidental dliculty in avoiding blotting and smearing of the writing.

Other objects, with ancillary advantages, will hereby become apparent, or be specifically ref ferred to; all of which will be evident to those conversant with the art upon a full consideration of the construction, arrangement and operation of the means hereinafter disclosed; but it is to be expressly understood this invention is susceptible of other embodiments, or structurally modified forms, coming equally well within the terms and scope of the concluding claims.

In the drawing- Fig. 1 is a view in elevation of a stylographic pen generally incorporating the fundamental features of this invention, n l

Fig. 2 is a fragmentary longitudinal section of the writing end portion of the pen, said section being drawn to exaggerated scale for clearer illustration of important details.

Fig. 3 is a cross-section, taken approximately as indicated by the angle arrows in Fig. 2.

Fig. 4 is an end view of the pen point; and Fig. 5 is a longitudinal-view of the same.

Figs. 6 and 7 are respectively, a side View and an end view of a point adjuster component of the improved pen.

Figs. 8 and 9 are, respectively, an edge view and a plan of an annular shut-off whereby filling and re-lling of the pen are easily effected.

Figs. 10 and 11 are, respectively, an elevational view and an end view of an ink-flow regulator or control section included in the pen of this invention.

Figs. 12 and 13 are a plan view and an eleva- Fig. 15 is a fragmentary view of'a. slightly l modified form of the filler.

In describing the form of the invention vexemplied by the above captioned' drawing herewith, Specific terms will be employed for the sake of clarity, but it is to be noted that the scope of said invention is not thereby limited; each such term being intended to embrace all equivalents which perform the same function for an analogous purpose.

Referring now more specifically to the drawing the barrel of the novel stylographic fountain pen of this invention is comprehensively designated by the character I6, said barrel having a co-extensive bore Il. 'Ihe barrel I6, it is to be particularly noted, is preferably made of a clear or transparent material so that the ink level can always be seen both when the pen is in use, or when lling the same; and said barrel is generally shaped like an ordinary pen-holder with ataper from the diametricallylarger front end I8 to the rear end I9. The barrel I6, preferably, also is formed of polygonal cross-section for a substantial extent 20 rearwards of the front end I to aid in gripping the pen, when writing, as well as to prevent rolling thereof when laid down on a desk, -or the like. l

The front end I8, as best understood from Fig.. 2, is curvilinearly reduced outwards at 2l, to correspondingly merge into the outer portion of a vcontroller section or chuck 22, see Figs. 10 and 11. The bore I1 of the barrel I6 is screwthreaded at 23 for insertion, and tight tment, therein of a shut-ofi device or ring 24, Figs. 8 and 9; said ring conveniently having a pair of diametrically opposed holes 25, 26, the purpose whereof wil1 be Rater explained; while said ring is drivenrmly into the screw-threaded bore 23 to prevent its working loose.

Referring again to the controller section or chuck 22, the same embodies an externally screw-threaded section 21, a taperingly reduced forward portion 28 and a milled section 28 for vgrippage purposes; while it also is provided with a pair of diametrically opposed longitudinalducts 29, 30, for movement into, and out of, alignment with the shut- 01T ring holes 25, 26, as hereafter fully explained. I

The bore of the chuck 22 'includes an inner cylindrical section 3|, an intermediate screwthreaded portion 32, a forward cylindrical rela.- tively reduced section 33, and a front tapering end 34 which in effect constitutes a grippage.

The pen or Writing point 35, Figs. 4 and 5, is preferably made of gold, or other ink non-corrosive material, such as stainless steel, plastic, aluminum, etc., to embody a tubular portion 36 and a tapering section 31, tted with an iridium tip 38. The tapering section 31 and tip 38 are preferably, although not essentially, cross-cutl diametrically at right-angles to impart a degree of flexibility thereto, and to better insure such factor the cross-cuts 39 are extended beyond the point of meeting 40 of the taper 31 with the exterior surface of the tubular portion 36, whereby said cross cuts not only permit flow of inl; to the tip 38 but likewise allow air to enter the pen barrel I6.

For the adjustment of the point section 35 to vary and control the writing of fine or coarse characters, words, etc., use is made of an adjuster member 4|, Figs. 6 and 7, said member being in the form of a feeder bar having a com paratively fine axial-bore 42 and its edges screwthreaded at 43 for engagement in the correspondingly-threaded section 32 of the chuck 22. This adjuster-member 4l, as readily understandable from Fig. 2 coacts with the inner end of the writing point 35 and, by an obvious turning manipulation of said member the tapering section 31 of said point may be contractively-influenced to diminish outlet of ink through the tip 38; or by a reverse turning movement of the adjuster member 4I the point 35 will be automatically expanded and move axially relative to the chuck 22 incidental to the previously imposed compressive action exerted on the section of said point superimposed by the cross-cuts 39. l

To fill the fountain pen I6 use is preferably made of the means shown in Figs. 14 and 15, the former ligure showing a perspective of a well known type of ink-bottle 44 having a screw-cap 45, to which I conveniently apply a fine outlet tubular spout 46, and a small rubber ball-valve 41 having an air inlet 48. Now it will be quite obvious that by effecting a slight turn of the con,- troller section 22 to move the ducts 29, 38 therein into registration with the holes 25, 26 of the shut-ofi ring 24, that the outlet spout 46 may be introduced into either of the ducts 29 or 30-29 for example-and the pen replenished or same consisting of a tnmcated springy material element, coiled to dene tapering grips 60 linto either of which the pen I6 can be slipped point upwards; while said device 49 is readily securable in .the pocket or to the desired part of the wearing apparel by meansl of an attached safety pin 6I in an obvious manner. Use of the device eliminates the development of frayed pockets, whileholding the same lengthwise in a` most desirable manner for easy withdrawal and replacement.

While there has been disclosed herein what is deemed to be a preferable embodiment ofthe invention, it is to be understood'the same is nonlimitative, inasmuch as the details may be variously modiiled to suit differing types of fountain pens; all such changes and variations being included as come fairly .within the scope -of the following claims.

Having thus described my 1. In a fountain pen the combination of streamlined ink barrel lhaving a tapering forward end, a tubular control section rotatively engaged in said forward end and having longitudinal ducts through the wall thereof, a shut-off l. device in the barrel-bore having holes therethrough for coaction with the control section to effect filling of the pen, a writing-point having longitudinal cross-cuts at right-angles extending from its tip into an inner bore portion of saidl n writing point, and means whereby said point is filled by pressure on the ball-valve 41, while the other duct-30 for instance-serves for expelling of any contained air in the pen barrel I6.' When the pen is filled pressure of the nger or thumb on the ball-valve 41 is released and vthe flow of ink via the spout 46 be immediately arrested, while a slight reverse turn of the controller section 22 completes the operation without any messing of the lingers andthe pen will be found exteriorly dry and clean, or ready for instant use.

In the modification of Fig. 15, a pin-hole 48 is provided in the cover or cap 45 inlieu of the ball'- valve 41, and will be found in practice'equally eicient.

For carrying the improved fountain pen I pref- A erably use the device 49 of Figs. 12 and 13, the

forwardly adjustable to regulate the ink flow in opposition to the flexibility of l'said point set-up by the cross-cuts therein.

2.- The combination of claim 1 wherein the ink barrel is made of transparent material, is of polygonal cross-section, and the forward end is curvilinearly reduced lengthwise towards the outer end.

3. The combination of claim 1 wherein the control section embodies an outer taperingly reduced portion, an intermediate exteriorly-milled section,

an inner screw-threaded part for engagement in the pen barrel bore, and diametrically opposed filler and air flow ducts respectively provided lengthwise through the wall of-the control section.

4. The combination of claim 1 wherein the shut-off device is in the form of an annulus having a surrounding screw-thread for firm engagement with a complemental thread in the bore of the pen barrel, and a pairof diametrically opposed holes are provided through the annulus for the purposes specified.

5. The combination of claim 1 wherein the writing point embodies a tubular rear part, a tapering' forward section, an iridium tip, and cross-cuts at right angles to one another provided from said tip lengthwise of the writing point into the tubular part to impart a minor degree of flexibility thereto for the purpose specified. y

6. The combination of claim 1 wherein the writing point adjuster means is in the form of a feeder bar having an axial bore, and a screw thread for coaction with a corresponding thread in a 'bore of the control section.

WILLIAM G. NICHOL.

invention, I claim:

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