US1437631A - Process of manufacturing pens with angular nibs - Google Patents

Description

G. E. BARTOL, JR.

' PROCESS OF MANUFACTURING PENS WITH ANGULAR NIBS.

APPLICATION FILED 02c 31.1921.

LQ3K631; Patented; Dec. 5, 1922.

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STATES h PATENT OFFICE-.31"

GEORGE E. BARTOL, JR, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO 0. HOWARD HUNT BEN COMPANY, OF CAMDEN, NEW JERSEY, A CORPORATION OF NEW JERSEY. l

rnocnss or mnurac'runmernnswrrn ANGULAB. NIBS.

Application filed -December 31, 1921. Serial No. 526,198. 7

To all whom z'tmag concern;

Be it known that I, GEORGE E. BARTOL, Jr, a citizen of the United States, residing at Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented a new and useful Improvement in Processes of Manufacturing Pens with Angular Nibs,

of which the following is afull, clear, and

exact description, reference being had to the accompanying drawings, which form a part of this specification.

In the manufacture of pens provided with wide, upwardly displaced, multiple nibbed extremities, such as are used in drawing thick lines, as in printing show cards, the usual process results in a pen whose extremity is comparatively soft and which, while sufliciently flexible, is inelastie in that, when once bent or distorted from its normal shape, it does not resume such shape, making its life quite ephemeral. Moreover, such a pen does not well resist the action of the ink. It is even quite difficult, by the usual process, to produce a pen which is wholly undistorted, at the final stage of manufacture, because, afterthe upsetting of the extremity, the subsequent pol- .ishing or burnishing process tends to disin s, in whichtort the nibs, and there is therefore considerable loss in manufacture.

In the usual process, one or two slits are formed in the wide extremity, providing two or three nibs. The temper of the pen is then drawn by heating to a moderate temperature followed by slow cooling. The extremity of the pen, while the pen is cold, is then upset in a press. These operations produce a penwhich is comparatively soft and which, while more or less flexible, possesses little elasticityp Therefore, inthe subsequent polishing or burnishing 'opera tion, any incidental distortion of the nibs is apt to be permanent; while even if a perfectly shaped product is turned out, the comparative inelasticity of the bent extremity makes the life of the pen quite short.

In order that my improved process'may be more readily'understood, II, have illustrated certain operations characterizing such process in the accompai ing draw- 1 1 1s a p'erspectlve view of an unfinished pen as it appears before the upset- I tinlg operation. I

. I ig. 2 is a perspective view of the anyll (the adjustable stops being omitted) the pen positioned thereon, and of the heater and upsetting die. Fig. 3 is a plan vlew of the anvil, the pen positioned thereon and the adjustable stops. Fig. a pen.

The preliminary steps in the manufacture of the pen need not be described. It may be mentioned, however, that the pen w is shaped to its final form, including the slitting of the extremity to form the multiple nib, except that the extremity of the, nibs has not been bent back (see' Fig. 1) and is then polished in a tumbling machine.

The pen is then placed on 'arest,'preferably an anvil a, as shown in Fig. 2. The front of the anvil slopes downward from the plane of-the rest, as shown at b, at an angle thereto corresponding to the angle to which the front extremity ofthe pen is to be bent. The operator places the pen on the rest and pushes it orward until it engages the adjustable stdps c, c (Fig. 3) on opposite sides of the rest. In this position the nibs of the pen overhang-the front. edge of the rest a distance corresponding to the A Bunsenblow-pipe d is positioned to direct a flame over the front edge of the anvil and in a direction nearly or quite parallel to the inclined front face '6. Above the ing an inclined lower face extending parallel to the inclined front ace 6 of the an vil and, back of that, a horizontally extending face g adapted to engage that part is a perspective view of a finished desired lengthof the extremity to be upset.

front of the anvil is a hammer die e havof the pen immediately back of the extremity to be upset.

The flame of the blow pipe is constantly laying across the space in frontof the rent edge of the pen-rest. When the pen directly thereon, it being understood that,

di ately adjacent to the part enveloped in; the flame will be highly heated. Theupsetconduction, the part of the pen im'nie ting die or punch is then moveddowninto contact with the front of the pen, thereby upsetting the extremity. The ;extrem1ty*21s f thus gripped between two metallic surfaces. r 4

The faces f, g of the die are cold, whilethe nibbed points it is also applicable to pens opposing surfacesof the anvil are comparatively cold, as the flame does not play dition of initially tilted. The die is retracted g uitequickly after the upsetting operation. he shape of the complete pen is shown in Fig. 4:, y representing the upset extremity.

After the final shaping operation, the pen is polished or burnished.

The local application of high heat to that part of the pen which is to be bent and the immediately following upsetting and chilling operation harden the point and impart to it such elasticity that thenibs, if distorted by ordinary. pressure, resume their normal shape. The subsequent burnishing operation does not, therefore, distort the nibs in the least degree, so that, at the final stage of manufacture, all the pens are per-. fectly shaped. In use, the pens are surprisingly durable, due to the temper being such as to combine the desired qualities of hardness, flexibility and elasticity, and resist very well the corroding action of ink. This particular type of pen, as ordinarily manufactured, is especially deficient in these qualities, and if distorting pressure be applied thereto, as is frequently the casein ordinary use, the nibs will spread and fail to resume their normal shape, thus virtually ruining the pen. therefore, why my improved process effects a substantial advance in the art.

While my invention has been shown and described as applied to pens with wide threewith sharp tWo-nibbed points the extremities of which are displaced angularly to the bod of the pen.

aving now fully described my invention,

what l'claim and desire to ters Patent is'z- 1.111 the process of making pens, with protect by Letupwardiy displaced extremities, the steps It will be ,understood,'

which comprise taking a pen slitted and shaped except for the upsetting of the extremity, heating the extremity to a red heat and simultaneously upsetting and chilling the end, thereby producing a comparatively hard and elastic extremity.

2. In the process of making pens, with upwardly displaced extremities, the steps which-comprise taking a pen slitted and shaped except for the upsetting of the extremity, placin only the extremity of the pen in a high y heated zone adapted to suddenly elevate such extremity to a temperature corresponding to a red heat, upsetting the end while it is being subjected to such heat and immediately chllling the pen.

3. In the process of making pens, with upwardly displaced extremities, the steps Which comprise taking a pen slitted and shaped except for the upsetting of the extremity, placing only the extremity of the pen in a highly heated zone adapted to suddenly elevate such extremity to a temperature corresponding to a red heat, and immediately confining the extremity between two metallic surfaces, one at least of which is relatively cold,- extending at an angle to the direction of extension of the body of the pen, thereby simultaneously upsetting and chilling said extremity.

4:. In the process ofmaking pens, with upwardly displaced extremities, the steps which comprise taking a pen slitted and shaped except for the upsetting of the extremity, laying1 the pen on a relatively cold anvil 1n suc be upset projecting beyond the anvil, directly heating the projecting extremity only of the pen quickly toa red heat, and immediately upsetting the highly heated progecting extremity by means of a cold punch In testimony of which'invention, I have hereunto set my Penn, on this 30th day of December, 1921.

position as to leave the extremity tohand, at Philadelphia,

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