US478635A - perkins - Google Patents

Description

(No Model.)

D. T. PERKINS.

FOUNTAIN PEN. N0. 478,635. Patented July 12, 1892.

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DUANE T. PERKINS, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO HIM- SELF, FREDERICK ZUCHTMANN, AND PAUL A. KNAPPE, OF SAME PLACE.

FOUNTAIN-PEN.

SPECIFICATION forming part of Letters Patent No. 478,635, dated July 12, 1892. Application filed March 21, 1891. Serial No. 385,927. (No model.)

To all whom it may concern.-

Be it known that I, DUANE T. PERKINS, of Springfield, Hampden county, and State of Massachusetts, have invented certain new and useful Improvements in Fountain -Pens, of which the following is a full, clear, and exact description.

The object of the present invention is to improve the construction of fountain-pens, rendering by the provision of a few and very simply formed parts the fountain-pen most efficient and practical and precluding all liability of the same becoming deranged or inoperative.

The invention consists, in a fountain-pen, of a barrel or reservoir having in its forward section a closing or stopper portion, which, however, adjacent to the contour of the inner wall of the said forward section is reduced, so as to receive between it and said inner wall the pen-shank, and also at such side carrying a feed-bar, which extends forwardly therefrom to lie under and along the under side of the pen, there being also one or more ducts in and lengthwise of that side of saidstopper portion adjacent the pen-shank, which forwardly terminate at or near the said feed-bar. Otherwise the invention may be said to consist in the construction and combination of parts, all substantially as will hereinafter more fully appear, and as defined in the claims.

Constructions of a fountain-pen embracing the present improvements are illustrated in the accompanying drawings on an enlarged scale, in which- Figure 1 is a central longitudinal section and partial side elevation of the fountain-pen.

Fig. 2 is a central longitudinal section through the forward section of the fountain-pen as seen in a plane at right angles to the view Fig. 1, with the writing-pen removed and the feeder shown in side view. Fig. 3 is a cross-section taken on the line 3 3, Fig. 1. Fig. 4. is a view taken at the lower end of the fountain-pen, the writing-pen, however, being indicated as in cross-section. Fig. 5 is a perspective view of the stopper portion and feeder. Figs. 6 and 7 are views in illustration of a feeder en1bracing a feature of construction to be hereinafter referred to.

In the drawings, A represents the reservoir or barrel, and B the forward section thereof, which is here shown as removably fitted in the barrel proper by the screw-thread joint a. The forward section has the axial opening I) therein,which as to the forward portion thereof is practically closed by the stopper portion D. This stopper portion, however, at one side is reduced or abated, as at 0, so as to permit the shank of the writing-pen 0a to enter between the side of said stopper portion and the inner Wall of the said forward section B. The stopper portion is provided with or supports the feed-bar d, which extends forwardly froni the said portion to lie by its upper side or edge centrally and longitudinally against the under side of the pen 0c and" projects nearly to the point of the latter. The top edge of said feedbar is preferably continued rearwardlyin the ridged,which is midway of the ductsff, which are alongside thereof and which extend from rear to the front end of the portion D, terlninating at or near to the feed-bar and forming a communication between the interior of the barrel and the said feed-bar. As preferably constructed and as particularly shown, thepassage 1; through the forward section Bis of two diameters, that portion of the passage which is forward having the large diameter, so that the seat 9 is formed at the upper end of the said forward portion. This seat forms a rest for the stopper portion, which is usually and preferably removably fitted into the forward portion of the said passage, and also for the end of the pen-shank, as indicated in Fig.

1, and in order that the said ductsff may not be obstructed when the stopper portion D rests by its rear end upon the said seat, and so that there shall be a free communication between the interior of the reservoir and the said ducts, the rear end of the portion D is beveled, as shown at h. (See especially Figs. 1 and 2.)

The stopper portion and feed-bar may be integrally formed of hard rubber or other suitable material, as indicated in Figs.- 1 to 5, inclusive, or the stopper portion may be formed with the groove in addition to the duct-forming grooves ff, as indicated in Figs. 6 and '7, receiving in said groove j the feedbar, which is formed with a heel part 'i, which fits in said groove and the top of which constitutes the ridge or rib d, that separates the ducts.

In the use of the pen the reservoir having been supplied with ink and a portion of the latter being contained in the passage 5, it flows down through the ducts ff under the shank of the pen next to which the said ducts are located, and thence the ink forwardly flows to the nibs of the pen, being centrally guided by the feed-bar. As the undulating pressure is put upon the pen as the same is moved over the paper in writing, a peculiar attraction is exerted at the pen-nibs to draw downasupply of ink adequate to the demands therefor as the writing proceeds.

The practical advantages of the fountainpen wherein the parts are provided in the arrangement and having the formations in substance as described are marked and important, among which may be mentioned that the utmost simplicity and therefore economy of manufacture are obtained, and in the assemblage of the parts for use there is no troublesome accurate adjustment necessary, or one which on becoming impaired renders the pen inoperative; that any kind of pen may be used, the shank of which so conforms to the contour of the inner wallof theforward section B, so thatit may beinserted between same and the reduced portion of the stopper-section D, and the pen may be readily removed to be replaced or anothersubstituted at pleasure; that an underfeed is secured and one which is most efficient for the continuous supply of ink to the pen as demanded for the most leisurely or rapid or for light or heavy writing, the manner of contact of the under side of the penshank with the duct-provided stopper-section being especially to be noted in connection with the last-mentioned feature of advantage. It will furthermore be observed that under the described construction the pen may be held more or less nearly vertical, even when not employed in writing, without occasioning such an outflow of ink as will insure the ink falling off in drops from the pen.

ward section of said barrel and at one side and adjacent to the inner wall of said section reduced so as to receive between it and said inner wall the pen-shank, and a feed-bar in forward extension of said plug and adapted to lie along the under side of the pen,in combination with two ducts lengthwise of and at said reduced side of said plug and at one end open to the barrel and at the other end to the under side of the pen back of the forward end of said feed-bar, substantially as andfor the purposes described.

2. In a fountain-pen, the combination, with the barrel and a forward tubular section of it which interiorly is of different diameter, making an intermediate seat 9, of a solid plug or stopper D to close said section, adapted at its inner or rear end to rest on said seatg and having between it and the inner wall of said section an open space suitable to receive the shank of a pen, and also two ducts, each extending from end to end of it and both open to said pen-receiving space and at one end to the barrel and at the other end to the under side of the pen, substantially as described, for the purposes specified.

3. In a fountain-pen, the combination, with the barrel and a forward tubular section of it which interiorly is of different diameter, making an intermediate seat g, of a solid plug or stopper D to close said section and at its inner or rear end beveled on one side and adapted to rest on said seat 9 and having between it and the inner wall of said section an open space suitable to receive the shank of a pen, and also two ducts, each extending from end to end of it and both open to said pen-receiving space and at one end and the beveled side of the plug open to the barrel and at the other end to the other side of the pen, substantially as described, for the purposes specified.

DUANE T. PERKINS. Witnesses:

' J. G. DUNNING,

F. H. STEBBINs.

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