US2032991A - Fountain pen and method of making - Google Patents

Description

March 3, 1936- w AN 2,032,991

FOUNTAIN PEN AND METHOD OF MAKING Filed Sept. 26, 1932 lhventcr: 'WalteF Lahge,

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Patented Mar. 3, 1936 'PEN'AND METHOD OF MAKING Walter Lange, Berlin-Schlachtensee, Germany,

.assignor'to" General Electric Company, a corporation of New-York Application September 26;.1932, Serial No. 634,975 In Germany September 30, 1931 Claims. (01. 113-32) My invention relates, to fountain pens and methods for making themand concerns particularlypens for use with recording instruments.

It is an object of my'inve'ntion' to produce a pen which may easily be manufactured at slight cost and which is not easily damaged. v

Another object is to produce a pen'frorn which the ink flows with suflicientrapidity to' produce a clear legible recordand toavoid' faulty indishape. At the lower end of the tubular portion 13 are two flat nibs It and I5 preferably having V-shaped edges. .The nibs l4 and I5 are supported a sufficient distance apart to form a cap illary space l6 between them which communicates with the reservoir formed by the space within the tubular portion l3. The pen I! may be attached to the pen arm H by forming a union between the upper edge of the tubular porlo cations. Still another object is to produce'apen tion l3 and the lower surface of the end of 10 having a. large supply-"of ink in the ,capillarythe pen arm H. A suitable opening I6 is prospace. e j -vided in the end of the pen arm H to permit A further object'of my invention is to pro-' introducing ink into the pen l2. The opening dilce a pen which" may easily be cleaned even may, if desired, be semi-circular in shape or have after the ink has dried. Other and further 013-. some other suitable shape to permit pouring ink 15 jectsand advantages willbecome apparent as the into the pen and still to prevent ink from being description proceeds. I v v I spilled from the pen in case the pen should be In accordance with my invention "in its pretipped. The arrangement shown would be suitferred form, arelatively'short piece of cylindrical able for operations in which the pen was caused tubing isutilized to form the pen. The lower to drop considerably below the level of the pins 20 portion ofthe tubing is flattened and trimmed H w h form a pivot for the D arm to form a pair of parallel nibs between which a permit the pen to remain in contact with a record capillary space is formed. The unflattened porstrip. The opening l6 may, if desired, be artion of the tube serves as the ink reservoir. Prefnged C entirely at the Side Of the P orably-, the flattened portion ofthe tube is axis tow rd t e p ns s at t p may, 25 trimmedto provide nibs having V-shaped edges. if desired, be caused to operate with the pen arm e point of the V which is at the lowermost ll substantially vertical and the axis of the pen portion of the pen is the portion which comes in substantially h ri nta contact with the record strip and from which Any suitable method may be employed for prothe-ink flows. Obviously, a pen of this type is ducing pens of the character described but I 30 preferablyutilized in connection with apparatus have found that they may be manufactured which permits. the axis of the cylindrical portion quickly, easily and at small exp in the of the pen to-remain substantially vertical. The lowing ma A relatively Short Piece Of pehis attached to a pen arm of any suitable coning ll, shown in Fig. 2, is utilized as the starting struction, preferably the upper endof the cylinpoint in the manufacture of the pen. A bar I8 35 drical portion being fastened to the "end of the conforming in cross-section to the inner portion pen arm. The features of my'invention which of the tubing I! but having a rounded end I8 I believe to be novel and patentable will be pointis inserted into the piece of tubing H. The lower ed out in theclaims appended hereto. end ll of the tube i1 is then flattened in any 40 To' afford a better understanding 0f 1 lay-m: suitable manner as by pressing the'tube between 0 vention, reference is made in the ffollowingde suitable dies, and the bar I8 is withdrawn. The scription to the accompanying drawing in which flattened portion I1 is then cut preferably with Fig.1 represents in perspectivelan'assembled pen .V-shaped edges to form the nibs l4 and I5. Obviarm and pen forming one embodiment of my in- I ously; flattened and trimming might be performed ventidn; Fig. 2 represents'apieceofi-tubing form;. ina single operation if suitable dies were em- 5 ing the first step in the manufacture-of'pens in H ployed. accordance with my invention; Fig. 3 illustrates 1- The point 19 formed by the intersection of the a further step in the manufacture; and 4 edges 20 and 2| forms the pen point which comes represents the pen alone and-illustrates the final in contact with the record strip, Owing to the step in the manufacture of the pen. 1 large surface of the nibs l4 and IS, a relatively g Referring now more in detail tothe drawing large capillary space is formed and there is an in which like reference characters referto like ample supply of ink within the capillary space parts throughout, I utilize an arm ll having a to permit the ink to flow rapidly from the point pen I! attached at the end thereof. Pen H has I9 to the record strip when the arm II is quickly a. tubular portion l3 preferably cylindrical in deflected through a large angle. Consequently, 55

sufficient ink flows from the pen to form a clear and legible record at every point of the record strip which has been traversed by the pen point. The space within the tubular portion I3 of the pen l2 forms a reservoir of ample size to permit operation of a recording instrument for a considerable period of time without replenishing the supply of ink in the reservoir. The pen may be cleaned easily by inserting a thin plate between the nibs l4 and I5.

In accordance with the provisions of the patent statutes I have described'the principle of operation of my invention, together with the apparatus which I now consider to represent the best embodiment therefor, but I desire to have it understood that the apparatus shown is only illustrative and that the invention may be carried out by other means.

What I claim as new and desire to secure by Letters Patent of the United States, is:

1. The method of producing a fountain pen which comprises. inserting a bar having a rounded end into a tube having an internal cross-section conforming substantially to the cross-section of said bar, flattening the portion of said tube beyond said bar, withdrawing said bar and trimming the flattened end of said tube to form two parallel nibs of the, pen.

2. A pen for a recording instrument comprising a tube serving as a reservoir for ink, and 2.

pair of fiat nibs pressed fr m said tube at one end thereof and spaced form a. capilliary space therebetween communicating with said reservoir.

3. A pen for a recording instrument comprising a tube serving as a reservoir for ink and a pair of fiat nibs pressed from said tube at one end thereof, said nibs having V-shaped edges and being spaced to form a, capillary space therebetween communicating with said reservoir.

4. In combination with a recording instrument,, a substantially horizontal pen arm and a pen attached at the end thereof, said pen comprising a tube having its axis substantially vertical and serving as a reservoir for ink, and a pair of flat nibs pressed from said tube at the lower end thereof said nibs being spaced to form a capillary space therebetween communicating with said reservoir.

5. The method of producing a fountain pen which comprises inserting a bar having a rounded end into a tube having an internal cross-section conforming substantially to the cross-section of said bar, flattening the portion of said tube beyond said bar and simultaneously trimming the flattened end of said tube to form parallel nibs of the pen, and withdrawing said WALTER LANGEY

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