US691974A - Fountain-pen. - Google Patents

Description

.proved feed-bar.

UNITED STATES \VILLIAM IV. SANFORD, OF EAST ORANGE,

ONE-HALF TO FREDERICK D. BENNETT, OF

PATENT OFFICE.

NEV JERSEY, ASSIGNOR-OF FREEHOLD, NEW JERSEY.

FOUNTAIN-PEN.

SPECIFICATION forming part of Letters Patent No. 691,974, dated January 28, 1902.

AApplication filed April 26, 1901.

To all whom, it may concern:

Be it known that I, WILLIAM W. SANFORD, a citizen of the United States of America, and a resident of East Orange, in the county of Essex, in the State of New Jersey, have invented certain new and useful Improvements in Fountain-Pens, of which the followingr is a specification.

This invention relates to improvements in fountain-pens, and particularly in the feedbars thereof.

The purpose of the invention is to `furnish a feed-bar which will provide a quick and reliable feed of ink to the pen, will obviate any tendency of a bubble should one form at the end of the feed-bar, to prevent the feed of the ink, and which will quickly burst the bubble. y

The details of t-heinvention are set forth in the following description and illustrated in the accompanying drawings, whereof- Figure 1 is a longitudinal sectional elevationV of a fountain-pen equipped with my im- Fig. 2 is an enlarged face elevation of the feed-bar, and Fig. 3 an edge View of the same. Fig. 4 is a cross-section on the line 4 4 of Fig. 2.

The feed-bar 1, preferably of hard rubber and adapted to fit tightly into the section 2, as seen in Fig. 1, is shaped as clearly shown in face and edge views in Figs. 2 and 3. Terming that side 3 of Said feed-bar which is against the pen 20 the face and the opposite rounded side 4 the back, then the said back is cut away for some distance from the inner end of the feed-bar, as indicated at 6 in Fig. 3,.and a slot 7 is cut through the thinned part of the bar. The front or lower wall of said slot 7 is beveled, as indicated by the dotted line 8 in Fig. 3. Said slot 7 is so positioned that a part of it -projects inward be` youd the end of said section 2, Fig. 1. From the lower or outer end of said slot 7 a longitudinal groove 9 is formed, which extends nearly but not quite to the end of the feedbar, leaving a toe l at the extreme tip of said bar not slotted. In the bottom of said .groove 9 are formed longitudinal (one or more) Serial No. 57,623. (No model.)

capillary grooves 12 12, usually two in number, and which grooves also extend to the toe 10. The purpose of the said capillarygrooves is to promote the quick flow of ink to the pen. Said groove 9 is preferably, but not necessarily, also extended from the upper end of said slot 7 to the upper edge of the bar 1, Fig. 2.

The reservoir or penholder 15 being filled with ink and the section 2 screwed to place, the ink normally feeds both past the end of said feed-bar 1 and through said slot 7 to the groove 9 and capillaries 12 12, and thence to the pen 20. Said pen 2O is of the usual kind for fountain-pens and has an air-hole (not shown) which communicates with said groove 9 to supply air to the reservoir l5. Airbubbles are most likely to form either at the upper end of the feed-bar 1 or at the shoulder at the lower end of the cut-away part 6. Should a bubble ferm at the upper end of said feed-bar 1, there will 'be ink below the bubble, which can enter the said slot 7 and go from thence to the grooves 9 12 12 and to the pen. Should a bubble form at the said shoulder at the lower end ofthe cut-away part 6, the ink above the bubble can enter the upper part of said slot 7 and go to the pen by said grooves 9 12 12, so that in no event can a bubble check the fiow of ink to the pen. In either case the draft of the ink now quickly destroys the bubble, and sounder all circumstances the feed goes on regularly and as freely as desired.

Now having described my improvements, I claim as lny invention- -V 1. In a feed-bar for fountain-pens the combination with a reservoir of a slot 7 through the upper part of the feed-bar a part of said slot being freely open to the interior of the reservoir, a groove 9 extending from the upper end of said slot 7 to the upper end of said feed-bar and from the lower end of said slot 7 nearly but'not quite to the lower end of said feed-bar, and capillary grooves 12 in the bottom of said groove 9, substantially as described.

2. The combination in a feed-bar for fountain-pens of a reduced part G near the upper end of said feed-bar, a slot 7 for the inkl Signed at New York city this 19th day of through said part 6 and having an inclined April, 1901. Wall S, a groove 9 from said inclined Wall 8 nearly but not quite to the lower end of said 5 feed-bar, and capillary grooves 12 in the botuom of said groove 9, substantially as described.

WILLIAM W. SANFORD.

\Vitnesses:

DAVID WALTER BROWN, HENRY V. BROWN.

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