US606231A - Fountain-pen - Google Patents

Description

l(No Model.)

G. S. PARKER'. FOUNTAIN PEN.

No. 606,231. Patented June 28-,18Q8.

Unire rricn. t

FOUNTAIN-Pen.

sPEcIFICATroN forming part of Letters ratent No. 606,231, dated June 2s, 1898.

' Applicant nea July 26,1897. serielnaseatsa' No model.)

T0 @ZZ whom, t may cm2/cern:

Be it known that I, GEORGE S. PARKER, a citizen of the United States, residing at Janesville, in the county of Rock and State of Wisconsin, have invented a certain new and useful Improvement in Fountain-Pens, (Case No. 1,) of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to fountain-pens; and its object is to improve the construction and operation of the feeder which conveys ink from the reservoir or barrel to the point of the pen.

It has been extremely difficult heretofore to construct a fountain-pen in which the feeder would supply theink to the point of the pen regularly and in just the right quantity, and a quite common defect has been the liability of the ink to overflow upon the exterior of the nozzle when the pen was inverted and the cap replaced, the fingers being soiled by this ink when the pen was next used. My invention is designed to overcome these objectionable features and to provide a fountain-pen the.

feeder whereof will operate to supply the proper quantity of ink at a uniform rate ofV iiow and which will return the excess of ink to the barrel when the pen is inverted, thus preventing the objectionable overiiow upon the exterior of the nozzle.

My invention will be readily understood by reference to the accompanying drawings, which illustrate a feeder adapted to supply ink to the under side of the pen-point, and in which- Figure lis a longitudinal sectional view of a fountainpen employing my improved feeder. Fig. 2 is an elevation of the working parts, the nozzle for clearness being illustrated as transparent to show the parts within.l Fig.

' form of feeder.

3 is a View of the feeder and pen from beneath to show their relative positions.. Fig. 4 is a similar view from above. Fig. 5 is an enlarged top view of the feeder. Fig. 6 is a longitudinal sectional view of a portion of a fountain-pen employing a slightly-modified Fig. 7 is a cross-sectional view on plane 7 7 of Fig. Fig. Sis a crosss'ectional View on plane 8 8 of Fig. 5. Fig. 9 is a cross-sectional view on plane 9 9 of Fig. 5.

Like letters refer to like parts throughout the several figures.

The barrel a is provided with a removable nozzle ct', which screws into its end. The pen b is held iu place in the end of the nozzle by its frictional engagement with the feeder c, which consists of a bar passing through the longitudinal bore of the nozzle a into the interior of the barrel. A groove c is provided in the upper face of the feeder, said groove starting at the inner end c2, where `it communicates with the reservoir. The groove gradually increases in depth to the opposite extremity o3 beneath the pen, as shown most clearly in Figs. l, 5, and 6. The inner end c2 of the feeder is preferably bent to come approximately, if not quite, in contact with the interior wall of the barrel, as shown. A narrow slit d is cut in the bottom face of the feeder, said slit passing through the inner end c2 and downward, preferably ending, however, at a point about diametrically opposite theheel of the pen b. This slit is preferably cut deeper at this point to form a passage between the slit CZ and groove c through the feeder. The slit mayotherwise be placed in communication with the groove c', however.

I preferably cut a supplemental slit CZ in the end c3 of the feeder at the bottom ofthe groove c', as shown most clearly in Figs. 1, 5,

V Then the barrel ct is iilled with ink and the lparts assembled vas 4, shown in Fig. l, the device will operate asfollows: Ink will be taken `up from the wall of the barrel by the curved end c2 of the feeder and drawn toward its.

outer end through thenarrow slit cZby the force of capillary attraction, assisted by gravity, passing from the slit into thegroove'c in the upper face of the feeder, and thence down through the slit d and groove c to the point of the pen. The groove c', as has been stated, is considerably deeper at the end c3 than at any other point, and thus serves as a reservoir to store a quantity of ink nearthe point of the pen for instant use, 'as for long heavy strokes. As the ink` is drawn out of the barrel air must be permitted access thereto, and provision for this has been made in the groove c. -The air being light will naturally pass through the groove c in the top of the feeder, so that the heavier ink may find a passage IOO down the slit d,which is unobstructed by airbubbles. In feeders heretofore employed a frequent source of annoyance has been the collectionof air-bubbles in the capillary passages, necessitating jerking of the pen to will naturally iind a path to the top and often collect in the ink-duct, stopping the iiow of ink. It will be appreciated that with my construction a passage for air is provided at the top of the feeder, so that the ink may flow unimpcded through the capillary slit d, and from thence into the groove c and slit d' at apoint near the heel of the pen. An equallyimportant service is performed by this-slit d when the pen is inverted. In this condition all excess of ink which was in the groove c is immediately drained by the slit d andV returned to the reservoir, egress of air being permitted by way of the groove.

The supplemental slit d' assists the slit d in performing its functions and, in addition, keeps the extremity of the feeder moist to cause a quick flow of ink to the point of the' pen. This slit d,while advantageous in many respects, is not absolutely essential to the feeder, and in Fig. 6 I have shown a construc- I prefer to form tion wherein it is omitted. all parts, except, of course, the pen itself, of hard rubber; but any suitable material may be used.

I have described and illustrated a feeder adapted to supply ink to the under side of the pen; but my invention may be readily adapted to other constructions, and I do not therefore desire to be understood as limiting myself to the precise construction shown; but,

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is y 1. In a fountain-pen, the combination with a feeder-bar, the inner end whereof is formed to come into approximate contact with the Wall of the ink-reservoir, of a longitudinal groove along the upper side of said feederbar, said groove, starting at the inner end, gradually increasing in depth to the portion l under the nib of the pen, and a longitudinal capillary slit d in the opposite or under side of the feeder starting at its inner extremity, passing along its under side and only communicating with said groove at a point approximately under the pen, `substantially as described. v

2. A feeder for a fountain-pen, consisting of a bar having a longitudinal groove along the side thereof next the pen and communicating with the ink-reservoir, said bar also being provided with a capillary slit passing along the under side thereof andopening into the ink-reservoir throughout a portion of its length, anda capillary passage affording communication between said capillary slit and said groove, substantially as described.

3. A feeder for a fountain-pen, consisting of a bar having a longitudinal groove in the side next the pen communicating with the ink-reservoir, said groove gradually increasg ing in depth from the inner end to`tl1e outer extremity of the bar, said bar also having a capillary slit in its under side communicating at one end With the reservoir and at the other end with said groove, substantially as and for the purpose described.

1i. A feeder for a fountain-pen, consisting of a bar having a longitudinal groove in the side thereof next the pen, the inner end of said bar being formed to come into approximate contact with the side of the reservoir, said bar also having a capillary slit d passing along the under side thereof and opening into the ink-reservoir throughout a portion of its length, a capillary slit d'along the bottom of said groove, and a capillary passage affording communication between said slit d and said slit d', substantially as described.

5. In a fountain-pen, a feed er-bar provided with a capillary ink-duct opening in the reservoir at or near the lower interior wall or side of said reservoir, said capillary duct extending downwardly to an enlarged or deepened portion, said enlarged portion opening into a groove immediately Linder `the pen von the opposite of said bar, to form a continuation of said duct, said groove forming the continuation being enlarged to form an ink-holding chamber immediately under the nib of the pen, the upper portion of said groove communicatin g with the reservoir to form a vent,

GEORGE S. PARKER.

Vitnesses:

GEORGE L. CRAGG, A. L. LAWRENCE.

IOO

It is hereby certified that in Letters Patent No. 606,231, granted J une 28, 1898, upon the application of George S. Parker, of Janesville, Wisconsin, for an improvement in Fountain-Enna7 an error appears in the printed specication requiring correction, as follows: In line 98, page 2, after the Word opposite, the Word side should be inserted;

and that the said Letters Patent should be read With this correction therein that the same may conform to the record of the ease in the Patent Ofce.

Signed, countersigned, and sealed this 12th day of July, A. D., 1898.

[SEAL] WEBSTER DAVIS,

Assistant Secretary of the Interior. Countersigned:

C. H. DUELL,

Commissioner of Patents.

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