US254174A - Fountain-pen - Google Patents

Description

(No Model.)

W; W. STEWART. FOUNTAIN PEN.

No. 254,174. Patented-lab. 28, 1882.

Inventor:

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- PATENT ()FFICE.

5 UNITED STATES WILIITAllI w. STEWART, or BROOKLYN, NEW YORK.

FOUNTAIN-PEN.

SPECIFICATION forming part of Letters Patent No. 254,174, dated Februaly 28, 188 2.

Application filed March 16, 1881. (No model.)

useful Improvements in Fountain-Pens; and' I do hereby declare that the following is a full.

and accurate description of the same.

This invention relates to that class of fountain-holders which are adapted to use common or split-nib pens, and the object of it is to antomatically regulate and control the flow of ink from the reservoir, while at the same time a bath or supply of ink is maintained, in con. tact with the pen, from which the immediate supply is drawn in the act of writing. --I

Thebasis of this improvement is the gutter or bath, which is placed directly below the pen to receive ink from the reservoir and dcliver it to the pen. V

Heretofore the supply or ink flow from the reservoir has been regulated by a cut-off or stop-cock, which was controlled at will by the user. For the non-automatic stop I substitute, .automatic devices. The use of my automatic devices also imparts other functions of which the non-automatic holder was not capable.

That others may fully understand my im- 'provement, I will more particularly describe it, having reference to the accompanying drawings, wherein- Figure 1 is a longitudinal section of my penholder, showing the pen flexed in the act of writing. Fig. 2 is a similar section of thelower end enlarged, showing the pen at rest.

Ais the gutter under the pen P. It is a vessel'shaped like the half of a boat, with the prow or pointed end outward, and extending nearly to the point of the pen. At its base the gutter A is joined to the end section, Q, which in turn is screwed intothe end of the reservoir or barrel I. The open side of the gutter A is toward the pen.

X is a slit or seat to receive and hold the base of the pen.

G is the supply-lube, through which ink descends from the reservoir to the gutter A.

R is a rod, which passeslengthwise through the tube 0, and carries at the outer end of said tube a valve or gate, D, which closes said tube when pressed upward against its open end.

The rod R, outside the gate D, is bent upward, and formed so as to constitute a light or delicate spring, F, which rests and presses against the nibs of the pen. The extremity of the spring F is secured in a little hole or cavity,

B, at the extremity or pointlof the gutter A,

and the spring F is adjusted ,to bear against the pen, so as'to close the gate D when the nibs of the pen are at rest in their normal position; but when in use the nibs are caused to bend backward, the spring curves in thesame direction and opens the gate, so that ink ispermitted to descend into the gutter during the time when it is being delivered to the paper. .At the completion of the downstroke and during the upstrokes, when the nibs of the pen are together and in their normal position, the consequent depression of the spring F causes the gate D tojclose and arrest theoutflow of ink. V

The rodR has near its upper end within the barrel a shoulder or cross-pin, f, to engage with a tube or rod, L, which passes up through the head J, where it is provided with a screwthread, N, so that by turning said head said rod may be moved longitudinally and the gate D caused to open by pushing the rod B. To facilitate this movement the head J is provided with a knurl for the easy grasp of thefingers.

The head J may be inserted in the end of the or it may be fitted with a screw, in which case said screw-thread and the screw N will be differential as to each other, so that the turning of the head J backward will force the rod L forward.

M is a packing of soft rubber to prevent the ink from gaining access to the screw N.

K K are slots in the barrel I to make the same compressible, and at that point said barrel is provided with flexible lining z, of soft rubber. These slots are not essential, but have a utility which will be explained.

When the pen is in use bubbles of air enter the reservoir as the ink flowsout, and to prevent these bubbles from accumulating and obstructing the flow I insert a small open capillary tube formed by a coil, S, of fine non-corrodible wire, which will serve to collect and conduct the little bubbles rapidly away from the vicinity of the supply-pipe O; and said coil may be protected within the rod L, which may be made tubular for the purpose.

In practice I prefer to make the rod R of gold wire, and constitute the spring F by heating the same out flat at part 1).

In using this pen, at the com mencement'the gutter may be charged with ink by opening the gate D with the rod L, as described, and the ink will thus descend to the gutter. This movement of the ink may be facilitated by squeezing the barrel at its slotted part. When the gutter has been charged the rod L is withdrawn, and while writing the supply ot'ink will be automatically provided by the movement of the gate-D, controlled by the pen, as set forth. After use the gate D is again opened by the rod L, and the pen being held with the point upward the barrel is gently squeezed to expel a part of its inclosed air, and upon relaxing the pressure the ink in the gutters is drawn again into the reservoir.

G is a jacket which surrounds and protects the base of the pen, and H is the tip or removable cover fitted to the end of the jacket to cover and protect the point. of the pen while notin use.

Having described my improvement, what I claim as new is l. The gutters A and supply-tube G, combined with the yalve D and spring F, one end whereof is connected to said valve and the other end attached to the point of said gutter, and the middle portion adjusted to bear against the inner side of the nibs of the pen, as set forth.

2. The supply-tubeGof afonntain pen-holder, with a valve, D, and spring I*, combined with a rod, R, extending from said valve up through said supply-tube, and a tube or rod, L, within the reservoir, whereby said valve may be opened independently of the pen, as set forth.

3. A supply tube or port provided with a reciprocating valve opening outward, and kept closed by pressure from the pen, and means,

substantially such as described, whereby said valve may be opened at will, combined with an ink reservoir or barrel, provided with walls made elastic by slots K, or otherwise, as set forth.

4. In a fountain-holder, a reservoir and a supply-tube, (J, combined with an open capillary tube, constituted by a coil, S, of fine noncorrodible wire, extending from said supplytube upward into the reservoir, to conduct away the little air-bubbles without impeding the flow of ink.

5. In a fountain pen-holder, a reservoir and a supply tube or port, 0, whereby ink may pass from the reservoir to the pen, combined with an open capillary tube, constituted by a coil of fine noncorrodible wire, extending upward from said supply-tube, and a tubular rod, L, to inclose and protect said coil, as set forth.

WILLIAM W. STEWART.

Witnesses:

D. A. SAYRE, W. WonLMAoiIER.

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