US1470405A - Fountain pen - Google Patents

Description

oct. 9, 1923. 1,470,405

W. UHIL FOUNTAIN PEN Filed June 21, 1920 irren.. ist l fWILLIrnvrUHL, oneoennsfrfns;NEWS-YORK;assiettes oaonnetnt Vfria/.trattienefis.

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Beit kno-wn that 1V1LLIAM Uirlifo'f Rochester, in. the.v county yof Monroe fand State of New York, have zinventedf'ce'rtaiii; new and usefulImprovements ini/Fountain vPens; and I dohereby declare `thefollowing toA be aA full, clear, andeXact descriptionfof the same, reference being hadto the accor/n1- panying drawingswforming apart .of this specification, and to the "referencel numerals marked thereon.

present iiii'ention relates toi'fountain pens 'and' more. particularlytoI the feeding devices thereof wherebythe'inlt frornffthe reservoir .is carriedytol `the Apen prop'eri'and the inventionV has for f its `object .provide an improved',feeding device that will insure an adequate and uniform iow to the writing point at all times. The improvements are particularly applicable to multiple point pens having more than two tines rendering them capable of writing when held at any angle in the manner of a stylographic pen and when so embodied, the object of the invention, as above stated, is realized. To these and other ends the invention resides in certain improvements and combinations of parts, all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end of the specification.

ln the drawings:

Figure l shows a side view of a fountain pen to which my improved feeding tongue may be applied;

Figure 2 shows an enlarged section through the lower end or point of the pen shown in Figure l, but showing the feeding point in elevation;

Figure 3 is a similar fragmentary section taken also through the feeding point;

Figure le is a section on the line 49m@ of Figure 3;

Figure 5 is a. section corresponding to Figure 3 through the point of a modified form of my invention;

Figure 6 is a section on the line (a-6 of Figure 5; l

Figure 'T is a section on the line 7a-7 of Figure 6.

Similar reference numerals throughout the several views indicate the same parts,

Referring specifically to the particular embodiment of the invention shown in the drawings, l indicates the tubular body or time "Cap sieh the ti gli havl end t reduce i@ eeh t ,y f' ying' therin enel-1 of the ,This @resell "vjolirp` in fthe',V present ice',is.of f il le ible'orcollaps ible, f .type being constitute@ by' fa i rubber sackfas is conn'non in selfiilling`p'ensQ-' .The k-'contained therein'*andl fl ving g T 'Ci "ndicatdfa "plug is ially "arrange'd'ja nd occupied by a cylindrical tongue 8 thatfits it closely and is 'frictionally held in place in a liquid-tight manner. It is tubular for 7 the major portion of its length being provided with a central bore or cavity 9 that is in axial alineinent and communicates with the passageway 7 of the plug. An intermediate portion of the tongue at a point within the plug socket is reduced at 8 to provide an annular socket for the reception of the tubular shank portion 9a of a penpoint 2.' This pen is in the form of a symnietrically tapered hollow shell with the three slightly rounded faces of a pyramid, Each such side or face constitutes a sepate tine.y the shell being split as at 9b along each corner of the pyramid and each tine being indicated at 8. The split portions, as usual, give liexibility to the points or tincs and serve to assist the flow of ink along the interior of the pen to the writing point. lecausc of this multiple construction, the pen may be held at any angle during writi' in the .manner of ay stylographic pen, that is, any one of the tines may be uppermoet.

Beyond the reduced intermediate portion 8 the feeding tongue has the same pyram idal form as pen point Q as indicated at l0 and `fits closely within the interior of the pen point. Along its corner edges it is pro vided with laterally opening longitudinal slots or channels l() that intersect the central bore 9 of the plug and also open against the inner surfaces of the pen point along and coincidently with the splits 9b therein. Each slot becomes sha-llower as it progresses toward the writing point, the outer end thereof being preferably a shallow groove or channel 11.

It Will thus be seen that in operation the ink flows from the reservoir 5 through the passage 7 in the plug 6 and thence into the bore 9 of the feeding tongue 8, finally emerging at the outer end of the latter through the slotted channels 10. It traverses the inner surface of the pen point following the grooves 11, ultimately reaching the Writing point. The capillary attraction in the channels and particularly in the small passages 11 holds back the flow until relieved by the flexing of the tines 3 and prevents flooding. p

In the embodiment of the invention shown in Figures 5, 6 and 7, the central bore 9 Within the shank ofthe tongue 8 is omitted and instead, the laterally opening longitudinal channels are slotted the full length of the tongue, as indicated at 13. The bot.. tom of the socket 7a is flared or enlarged, as shown at 14, and this permits the passage 7 to communicate directly with the slotted channels 13 and to deliver the ink through a greater ylength of channel to the Writing point.

The parts of the pen embodying my invention may be readily turned separately and easily assembled or taken apart and the forming o-f the feed channels 10-l1 is a simple operation resulting from a single cut of a milling tool before or after the center bore 9 has been drilled.

I claim as my invention:

1. In a fountain pen, the combination with a barrel having an ink reservoir therein and a Writing point split to form a plurality of tines, of a feeding tongue having a longitudinally extending interior cavity communicating With the reservoir and also provided With a laterally opening longitudinal channel intersecting the outer eXetrem'ityof the cavity at one end of theslot and extending to the inner surface of the Writing point, the other or outer end of the slot being relatively shallow and constituting a channel leading along the surface of the tongue to the tip of the Writing point.

2. A feeding tongue provided with a pyramidal taper having channels along the edges of said taper and extending down to the apex of the point.

WILLIAM UHL.

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