US1592197A - Pen and attachment therefor - Google Patents

Description

Jul 13 1926. I 1,592,197 R. F. GEORGE I PEN AND ATTACHMENT THEREFdR Filed August 2, 1922 f on the pen.

Patented July 13, 1926. I

nose r. enonen, or saer'rnn wnsnrneron.

PEN AND ATTACHMENT THEREFOR.

Application filed. August 2, 1922.

'My invention relates particularly to pens 'of the type employed for lettering, showrard writing, or engrossing.

It is an object of my present invention to improve upon pens of this general char acter in a number'of respects, to make them better adapted to the purpose intended and.

to enable them to control and apply the ink from a reservoir upon the pen to the writing tip or nibs of the pen.

' More specifically, it is an object of my invention to provide an over-feeder for a pen which will spread the ink thinly toward the ends of thenibs, but which will hold a considerable amount in a reservoir higher up A further object is to Provide means connected with a pen and a reservoir attachment, and particularly with an over-feeder, which will suck up the ink from the end of astroke and thus avoid the depositing of a large pool or blot of ink at the end of each stroke.

A still further object is the provision of an underfeed attachment for pens, which may be employed either inconjunction with an over-feeder or separately, which will support a considerable quantity of ink and which will apply it to the under side of the pen to spread it out and to deliver it in liquid form to the ends of the pen nibs with out danger of the ink drying and caking.

' A futher object is the provision of means cooperating between the pen tip and the feeder attachment which will provide space for the passageof a film of ink of some body, that is, a small well, to the end that a sulficiently free flow to the tip is guaranteed, and to the further end that the ink will not dry and cake between the pen and the feeder attachment.

A further object is the provision of means whereby ink is distributed positively from the split between the nibs, or from a reser voir, to the edges 01: the nibs.

A further object is the provision in a pen and. an attachment therefor, of simple and reliable securing means for the attachment.

My invention comprises those novel parts and combinations thereof which are shown in the accompanying drawings, described in the specification, and particularly define by the claims terminating the same.

' In the accompanying drawings 1 have Serial No. 579,697.

shown my invention in forms which are now preferred by me.

Figure 1 is a perspective view of my pen with an attachment in place thereon.

Figure 2' is a longitudinal section through the pen and attachment, both under and over feeders being shown.

Figure 3 is a plan view of the under side of the pen, showing the underfeeder attached thereto. 7

Figure 4 is a longitudinal section of a pen with over-feeder only attached.

' Figure 5 is a similar View showingonly the underfeeder attached.

Figures 6 and 6 are bottom plan views of two forms of an improved pen tip.

Figure 7 is a section on line 77 of Figure 6. V

Figure 8 is a transverse section on line 88 of Figure 4.

. 9 is a detail section on line 9-9 of Fig. 2.

The pens illustrated in the drawings are composed of a shank or body portion 10 having nibs l at its writing point, The point may be straight, as illustrated in Figures 1, 4L and 5, or may be bent as is shown in Figure 2. Except as described hereinafter the pen may be of any ordinary or suitable type. v

The attachment to be superimposed upon my pen, and which is designed to be attached to the usual lettering pens, comprises a body cupped to form one or more reservoirs, the

upper reservoir, or overfeeder 20 being shown in Figure 1, this thinning down to a tip 2 which extends alongside of the nibs 1 at either the top or bottom. Suitable attaching means are employed, of which the band 21 is a foundation. In the drawings I have differentiated between the overfeed reservoir 20 and the underfeed reservoir 22. The latter, which may be employed in conjunction with the overfeeder 20, or alone, stops short of the ends of the nibs 1, as is best illustrated in Figures 2 and 5.

Both the overfeed attachment and the underfeed attachment are formed of flexible material or are flexibly held in place. The tip 2 of the overfeed attachment lies closely adjacent the upper surface of the nibs 1 and extends substantially to the ends of these nibs. It may be cupped upwardly as indicated by the marginal flanges 23 and it is provided with a hole at through its cupped end. The cupped end serves two purposes, one being to prevent interference of the tip 2 with the nibs 1 as they are flexed or spread. and the second being to collect ink which may gather upon the upper surface of the overfceder in this cup to be passed through the hole 2% for use. A still further purpose of this hole will appear later.

The under-feeder 22. which may be formed separately as shown in Figure 5, or which is preferably formed integrally with the overteeder 20. stops short ot' the ends of the nibs 1. Its lower edge, however. extends closely adjacent the under side of the pen 1tand thins out the film of inkso that it will feed readily to the point 1 either between the nibs or upon the under surface thereof. In my preferred construction it is slit as indicated at 25 and is provided with an aperture 26 for the reception of the ink.

Ink is received in the under feeder through a suitable orifice or space 28 between its upper end and the pen.

At their upper ends both the overleeder 20 and the underteeder 22 are attached to the band 21. or formed as a part of the same piece. The band 21 encircles the upper surtace of the pen shank 10 and may be held thereon trietionally or by means of a linger 2T bent downwardly theretrom and engageable in a hole 11 in the pen shank.

A simple means 01" securing the band 21 in place is illustrated in Figure 8. he overt'eeder 520 only being shown in this connection. though this is not material. Fingers Q8 of a length substantially equal to the thickness of the pen 10 extend inwardly from the ends of the band 21. These are engaged in notches 12 in the edges of the pen shanl. Such means will prevent the attachment sliding along the pen and will accurately position it thereon. This may be employed in association with the fingers 27 as may be desired.

A pen so constructed is flexible in making a stroke and the reservoirs or feeders are so flexibly associated with the nibs that they will feed a thin film thereto at all times and yet will retain a sufiicient body of ink between the feeder and the pen that the ink vill not dry and cake. At the finish ot a stroke. when ordinarily the pen would leave a blot. the relative movement between the nibs 1 and the tip 2 of the overl'ceder will act to suck the pool from the end of the stroke. the hole Q-Il: apparently assisting in this action by the suction therethrough upward in the direction of the reservoir 0. Furthermore. when pressure is applied upon such a pen. there is a tendency for ink to be squeezed over the edges of the tip 2 and nibs 1. and the hole 24 acts as a breather valve; to permit escape or" the excess without splatterin'g. Itisin tact asatety valve,

to prevent too great a How of ink, and to take up excess at the end of the stroke.

hen the nibs are spread in making a stroke, the overfeeder tends to drop a little ink to the under side of the nibs. is this true of pens having two splits to form three nibs. The underteeder. terminating short of the ends of the nibs, yet beyond the end of the split. acts by capillarv attraction to take up this excess of ink. In this manner it prevents the deposit of too much ink upon the writin surface, while yet assuring a sufiicient tiow. This action is especially noticeable with flexible pens. used-with heavy ink and with a single feeder only satisfactory results are not obtained.

For certan broad lines itis essential that the ink be positively ted to the edges of the pen nibs. I have therefore shown the nibs l as circular in outline, this being best illustrated in Figures 6 and 6. and as having grooves 13 radiating from the split between the nibs, or from a supplemental hole 14 through the nibs, if the latter be employed. and a circular groove 15 extending about the nibs closely adjacent their edges and com inunicating with the radial grooves 13. Ink passing along the spilt between the nibs or from the overt'eeder attachment will be re- 9 ceived in the grooves 13 and by them will be ted to the peripheral groove 15. This will assure a broad and uniform line when using the pen. Further the grooves may form corresponding ridges 16 upon the upper side of the nibs 1, as is best seen in Figures 2 and T, and the tip 2 of the overteeder will rest upon these ridges and will be thus spaced from the nibs 1. This provides a small local ink well, and assures a suiticient supply of ink from the overteeder 20. and it materially assists in the sucking action oi the hole 24- at the end of a stroke.

ll hat I claim as my invention is:

l. A pen comprising a point having nibs. and an attachmenttheretor superimposed upon the point. and extending substantially to the end of the nibs, said attachment at its tip lying substantially in contact with the pen. and having a hole through said tip.

A pen comprising a flexible point having openings therethrough for the passage 01 ink. and. a flexibly held attachment there for superimposed upon the point and extending substantially to the end ot the pen. the end ot' the pen having ink-distrilmtim; grooves in its underside and corresponding ridges upon its upper side, the end of said attachment resting upon said ridges.

3. A pen and attachment therefor as in claim 2. the end of the attachment having a hole therethrough. l

4. A pen comprising a flexible point having openings therethrough for the passage t -ink to the marking face of the tip, and

Especially a flexibly held attachment therefor cooperating with the pen to form a local ink reservoir over the pen tip, and separate main ink reservoir in communication with said local reservoir and thereabove, said attachment at its tip lying substantially in contact with the pen tip and cooperating with the holes therethrough to control the ink feed from and return of excess to the local reservoir.

5. A pen and attachment therefor as in claim 4, the local reservoir being formed by the interposition of spacer members pressed from the metal of one of the co-operating parts.

6. A pen and attachment therefor as in claim l, the local reservoir being formed by the interposition of ridges pressed upward from the pen tip and spacing the attachment tip from the general plane of the pen tip. I

7. A pen and attachment therefor as in claim 4, the attachment tip having a hole aligned with an opening in the pen tip, and cooperating therewith as a breather opening in the control of the ink feed and the return of excess ink.

Signed at Seattle, King County, \Vashington this 25th day of July 1922.

ROSS F. GEORGE.

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