US226924A - Edward b - Google Patents

Description

B4B. NIMMO. Stylog'raphio Fountain-Pen.

Patented April 27, 1880.

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mwfwd ILPEYERS. PHOI'OLLUHDQRAPHER. WASH NOTON D C IINTTED STATES PATENT Erica EDWARD B. NIMMO, OF BROOKLYN, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENT, TO WALTER WINTHROP, OF SAME PLACE.

STYLOGRAPHIC fFOUNTAlN-PEN.

SPECIFICATION forming part of Letters Patent No. 226,924, dated April 27, 1880,

v I Application filed Api-i126, 1879.

To all whom it may concern Be it known that I, EDWARD B. NnnMo, of Brooklyn, Kings county, New York, have invented certain new and useful Improvements in Stylographic Fountain-Pens, of which the following is a specification.

Hy invention relates to that cla'ss of pens in which the case or handle is hollow to contain a supply of ink, while the writing end terminates in a capillary tube with an internal vibrating needle-tongue or fine stylus.

My invention applies to the writing-point, and it aims to improve and cheapen its construction, so as to render the action of the vibrating point and the iiow of the ink more perfect, and also to enable fine or heavy writing to be made without altering the point, as well as to enable the pen to be more readily iilled with ink, to which ends the invention embodies a number ofnovel features', as hereinafter fully set forth.

In the annexed drawings, Figure l represents my improved pen on an enlarged scale, and shown in a position for filling, the tip or writing end being removed and shown in seetion. Fig. 2 is an enlarged perspective view of the improved writing-tongue or stylus removed from the tip.

As illustrated, c is the case or handle ofthe pen, the hollow interior of which forms the inkreservoir. b is the vent-cap, and d theair-tube, all of which are of substantially the usual construction, except that the air-tube terminates a little beyond the end of the case or handle, and is free of any connection with the vibrating point or stylus, which is usually attached on the end of the air-tube.

k is the removable conical tip, which is pro vided at the apex with the capillary tube f, while the base of the tip screws into the end of the handle, as usual.

A is the fine writing-tongue or stylus, which is inclosed within the tip k, works in the bore ofthe capillarytube, and projects slightlyfrom the end of the tube, being capable, as usual, of vibrating up and down therein under the action of the writing. This writingtongue, however, is of novel construction, and its arrangement with relation to the parts ofthe ease is also novel.

Heretofore the tongue has been attached to the end of the air-tube and free of connection with the removable tip, so that the tongue and its spring and guides remain on the tube when the tip is removed, and thus more or less ob struct the filling-orifice of the handle. According to my invention, however, the tongue is mounted within and is attached to the removable tip, so that when the tip is removed, the tongue being removed with it, the filling end of the handle is thus left comparatively unobstructed, rendering the insertion ofthe ink more easy, as will be readily understood from Fig. l of the drawings. The upper end of the tongue is fixed, as shown, to a small screw-ring, B, which screws into the base of the conical tip, and is provided with a projeco tion, h, which forms a handle by which the ring may be screwed in or out, and this construction, as will be observed, also forms at the same time a means of adjusting the projection of the tongue from the end of the eapillary tube which is both simple and effective.

Heretofore in pens of this class the tongue has been movable bodily lengthwise, its upper end being attached to an elastic spiral spring, while the tongue itself is iniiexible.

Another feature of my invention consists in forming the tongue to be laterally and longitudinally iiexible, and thus constitute in itself` a spring. Accordingly, as shown in the drawings, the upper end of the tongue A is ixed to the ring B, while its middle portion is made flat and thin and slightly curved sidewise, so as to be capable of bowing or bending laterally within the hollow of the tip, and thus admit of the lnecessary elastic vibrations of the tongue up and down in the capillary tube, as will be readily understood. This construction, while being simple, is also more effective, as the lateral thrusts of the tongue 011 the sides of the capillary tube tend to more effectually prevent the hardening of the ink therein, and thus conduces to a better iiow.

A further feature of my improved tongue, as may be observed, consists in its being split lengthwise or formed in two distinct halves, as shown, the upper ends thereof being, of course, fixed together on the ring B, while the lower ends thereof, which work in the capillary IOO point, are preferably of half-round section, so as to properly occupy the bore of the point, as will be understood. vantage of causing a better iiow of the ink and enabling tine or heavy writing to be made. rIhus, when the pen is held upright, or nearly so, the writing will be tine; but when the pen is held in an inclined position the divided tongue tends to spread, and thus produces a heavy mark, thereby enabling the Writing to be shaded and marks tine or coarse to be made, which has not been heretofore possible with this class of pens.

Although I prefer, as Will be understood, to use the screw-ring B for attaching the tongue to the tip r, yet some other means of attachment may be used without departing from the main features of my invention.

'I'he case of the pen is preferably formed, as usual, of hard rubber, while the capillary point, tongue, Sac., are, ot' course, formed of a non-corrosive metal.

I lay no claim, broadly, to a tubular plug or holder carryin the vibrating needle or stylus and fixed to or adjustable in the case of the instrument, or in y the lower section or tip thereof; but I limit my claim to the special construction of this feature, as below eX- pressed.

What I claim as my invention is- 1. In a stylographic fountain-pen, the combinatioi1,\vith a capillary tubular writing-point, of an internal vibrating tongue, A, tixed at one This feature has the ad-l e'nd and adapted to bow or bend in the middle, or thereabout, whereby the tongue is rendered laterally' and longitudinally tlexible, forming in itself a spring, substantially as and for the purpose set'forth.

2. The combination, with the removable tip 7c, provided with a capillary tube, and an intei-nal vibrating tongue, of the screw-ring B, forming the means of securing the said tongue in the removable tip and of adjusting its position therein, substantially as herein shown and described.

3. In a stylographie fountain-pen, the combination, with a capillary tubular Writing-point, of an internal double or -split longitudinallyvibrating tongue, A, substantially as herein set forth.

4. In a stylographic fountain-pen, the combination, with the removable tip 7c, provided with the capillary point f', of an internally-vibrating tongue, A, fixed Within and to the said tip, and sustained thereby independent of the air-tube or handle of the pen, substantially as and for the purpose herein set forth.

5. The combination, with the tip' 7c and spring-tongue A, of the ring B, for holding the spring-tongue in position, substantially as described.

EDW. B. NIMMO.

Witnesses:

JOHN E. GAVIN, CHAs. M. HIGGINS.

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