US1081557A - Fountain-pen. - Google Patents

Description

W. W. SANFORD.

FOUNTAIN PEN.

APPMGATION FILED MAY 3,1913.

Patented D60. 16, 1913.

5 no@ W60@ WILLIAM w. sanremo, or NEWARK, new JERSEY.

FOUNTAIN-PEN.

Specification of Letters Patent.

Application led May 3, 1913. Serial No. 765,226.

To @ZZ whom. t may concern Be it known that l, WILLIAM W. SANFORD, a citizen of the United States, and a resident of Newark, in the county of Essex and State of New Jersey, have invented certain new and useful improvements in Fountain- Fens, of which the following is a specification.

This invention relates to improvements in fountain pens.

rlhe invention is particularly adapted, but is not restricted, to use with pens of large size, which require the regular feeding of a considerable quantity of the ink to the pen point for proper writing.

The purpose of this invention is to insure the proper feeding of the ink, and at the same time to prevent the ink from flowing so freely as to cause blots, smears and the like.

The invention also aims to overcome diiiiculties arising from an abnormally increased supply of ink being fed to the pen point due to the pen having been too long allowed to lie in a horizontal position, or to undue expansion of the air in the pen from the heat received from the hand of the user, or to any other like unfavorable conditions, which cause an excessive flow of ink and thereby tend to produce blots and smears unless means are provided to prevent these results. This invention overcomes said difficulty by providing an ink chamber or chambers adjacent to the pen point so arranged as to receive and retain the excess of ink, and thereby pre vent blotting and smearing.

-@ther advantages of the invention will be evident from the description hereinafter contained.

Referring tothe drawings which accompany the specification to aid the description, Figure 1 is a broken longitudinal section on large scale of a fountain pen equipped with one form of the invention. rlhe hood is of the form shown in Fig. d. Fig. 2 is a top view of the preferred form of hood and showing the projecting rear end of thefeed bar, and Fig. 3 is a bottom view showing the preferred form of feed bar in place in the hood. Fig. l is a top view of a modified hood, and showing the projecting rear end of the feed bar, and Fig. 5 is a bottom view of a hood with a modified form of feed bar. Fig. 6 is a top view of a feed bar similar to that shown in Fig. 3. Fig. Z is a top view of a modified feed bar similar to that shown in Fig. 5. Fig. 8 is an enlarged cross section and elevation ofthe hood and the feed bar on the plane of the line 8 8 of Fig. 1, and looking from the right of Fig. 1.

Referring to Figs. 1, 2, 3, 6 and 8, A being the barrel or reservoir, B the pen section of a fountain pen, and C the pen point, the hood 1 upon which said pen point C lies, fits tightly together with said pen point, into the front end of said pen section B. @n its top side said hood 1 is provided with longitudinal 'slit 2 cut through to the interior of said hood, and extending from a point near the front end of said hood 1', backwardly to the rear end of said hood, as clearly seen in Fig. 2. At a position which will register with the usual air hole through pen point C, and preferably at each side of said slit 2, the top surface of said hood 1 has a dishedcavity 3 at the bottom of which is a hole 4 bored through to the interior of said hood 1. Said dished cavity 3 offers the great advantage of dispensing with the need of accurate adjustment on said pen point C, since the position of said pen point can vary considerably and yet the air hole in said pen point will register with said cavity 3, and air will be admitted to the interior of the said reservoir A. rlhe under side of said hood l is cut away at the front part on an inclination as indicated in Fig. 1, the under edge of said cut-away part being flushed with the under side of the feed bar 6 to be immediately described. Said feed bar 6 is of size and shape to fit tightly within said hood 1, and when once properly assembled in its position in said hood 1, is intended not to be removed therefrom, except for repairs or renewal. rlhe long slit in the hood illustrated in Fig. 2 provides a springy clamp like action which facilitates the placing and closely fitting of said hood 1 upon said feed bar 6. Said feed bar 6 is provided on its top side with a capillary ink feed channel 7, the bottom of which is preferably formed with parallel longitudinal grooves 8, whereby a. comparatively large amount of ink adhesive surface is attained. Said channel 2" and grooves 8 extend at their front end nearly but not quite to the front end of said feed bar 6, which end is beveled and fits into the under-cut front end of said hood 1, as indicated in Fig. 1. rllhe rear end of said channel 7 and grooves 8 extends through the cutaway rear end of said feed bar 6, so as to communicate with the interior of the said Patent-ed Deo.. 16, 1913..

pen section B and reservoir A. While said feed bar 6 is preferably cut away at the rear end, itis not necessarily so, and if the rear end of said feed bar is not so cut away, then said channel 7 and grooves 8 will extend clear through the rear end of sald feed bar. The front part of said feed bar 6 is `ut away, preferably at each side, as at 9, Fig. 7, to form small capillary ink chambers, when said feed bar 6 is in said hood 1, to receive and retain surplus ink whenever the iow thereof to the pen pointI has been abnormally increased, the surplus ink being thus prevented from flowing to the pen point too rapidly, and making blots and smears. The ink feeds as required from said surplus ink chambers slowly and regularly to the pen point.

From the foregoing description, it will be manifest that, when the parts are assembled, fourink-adhering surfaces are provided by this invention, for preventing excessive feed of ink to the pen point,viz. the inner surface of the hood which covers the said ink channel 7 the walls and bottoms of said ink channel 7 and grooves 8, and the under surface of said pen point, and the outer sur- 1f ace of said hood 1 on which said pen-point The operation of the invention is as follows: Ink from the@ reservoir enters said capillary ink channel 7, films of ink form on the aforesaid adhesive surfaces of said hood 1, and channel 7 and grooves 8, and ink Hows slowly and regularly and in proper quantity, because of the resistance of said adhesive surfaces, to said pen point C, the front end of said slit 2 serving as an ink feed slit `to feed the ink to the under side of said pen point C; and, as the pen point is move over the paper by the writer, the ink flows properly and regularly Without blot or smears from said pen point C to the hereinafter described, excepting that thecutaway part 12-12 of the sides of feed bar 6 does not extend clear to the front end of said feed bar. In all other respects however, the construction and operation are the same as hereinbefore described.

Referring to Fig. 4, the through-slit 13 Y in the top of hood 1 extends backwardly only about t0 the front end of pen section B. The feed bar used with a hood like that shown in Fig. 4 may be Asimilar either to the feed bar like that shown in Fig. 6, or to that shown in Fig. 7, and the construction of all parts and the operation are the same as hereinbefore described.

Now having described my improvements, I claim as my invention.

In a fountain pen, the combination of a solid feed bar having a grooved ink channel on its upper surface, a hood inclosing said feed bar, a slit in said hood connecting the interior thereof with the under surface of the Writing pen, and ink chambers formed by the coperation of the sides of said hood with recesses in said feed bar, substantially as described. 4

Signed at New York city, in the county of New York, and State of New York, this 2nd day of May, A. D. 1918.

WILLIAM w. SANFORD.

I/Vitnesses:

ISAAC P. STORM, WALTER N. HARRIS.

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