US764227A - Fountain-pen. - Google Patents

Description

PATENTED JULY 5, 1904.

A. EBBRSTBIN.

FOUNTAIN PEN.

APPLIUATION FILED APR. 21, 1904.

N0 MODEL.

ing my improvements applied thereto,

iran STaTEs Patented July 5, 19042 PATENT Creme.

`AUGUST EBERSTEIN, OF WINTHROP, MASSACHUSETTS, ASSIGNOR (.)F UNE-HALF T() CHARLES BRANDT, 0F BUSTON, MASSACHUSETTS.

FOUNTAIN-PEN..

SPECXFICATION forming part of Letters Patent No. 764,227, dated July 5, 1904.

Application filed Apri121, 1904.

To ati/Z whom it may concern:

Be it known that I, AUGUST EBERSTEIN, a citizen of the United States, residing at Winthrop, county of Suffolk, State of Massachusetts, have invented an Improvement in Foun-` tain-Pens, of which the following description, in connection with the accompanying drawings, is a specification, like numerals on the drawings representing like parts.

This invention has for its object to provide a novel device to be used in connection with fountain-pens which will prevent the pen from leaking when it happens to be turned bottom side up and will also prevent the pen from sweating as it is called.

A pen which has my improvements applied thereto, therefore, is never inky or soiled around that part of the holder with which the lingers come in contact in writing. I accomplish this result by providing a supplemental cap which is adapted to be placed within the ordinary cap of the pen, said supplemental cap having a pen-receiving pocket and being shaped at its end to enter and fit within the tapering end of the barrel. Y

1Whenthe regular cap is provided with my improvements and is applied to the penholder, the pen-point is inclosed withinf'the chamber ofA the supplemental cap, and as the latter lits against the end of the holder with a tight joint it is impossible for any ink to escape from the supplemental cap into the ,main cap, thereby to soil the holder.

ln the drawings, Figure 1 is a sectional view through one end of a fountain-pen, shlow- 41g. 2 is a side View of my improved cap, the main cap in which the supplemental cap is used being shown in dotted lines.

3 designates the holder of a fountain-pen, l the pen-point, and 5 the feed-bar. These parts may be of any suitable or usual construction.

The form of holder herein shown has its pen end flared outwardly, as at 6, thereby forming an annular recess or groove between the end of the holder and the pen proper, said flared-out portion having a less diameter than the interior diameter ofthe cap 7, -so that serai No. 204.198. et) model.)

when the cap is on a space exists between the cap and the flange 6. Within the main cap 7 is a supplemental cap 8, which has the pocket or chamber 9 of a size to receive the pen-point 4 and is tapered at its end, as Yat 10, to enter and lit within the flared portion 6 of the holder, as best seen in Fig. l. The supplemental cap 8 is entirely independent from the main cap 7 and, preferably, is of a size to closely lit within said main cap.

I prefer to provide the body of the holder with screw threads 12, with which interior screw-threads 13 on the main cap 7 engage when the cap is in place. The supplemental cap 8 preferably will iit within the main cap 7 suiiiciently tight so that it will be held therein by friction. The placing of the main cap over the pen causes the supplemental cap to inclose the pen-point 4, and the screwing of said ,main cap onto the screw-threaded portion 12 of the holder brings the tapered portion 10 of the supplemental cap hard against the interior of the flanged portion 6 of the holder, thereby making an absolutely tight joint.

I f by accident the pen should be turned bottom side up when it is thus closed, the ink cannot escape into the main cap, but will be heldentirely in the supplemental cap, and

therefore the portion 15 of the holder with vwhich the lingers contact in using the pen is kept perfectly dry.

There is a special advantage in making the supplemental cap with the tapering end 10, whichl enters within the flared portion 6 of the holder, or in so constructing the parts that the line of'contact between the supplemental cap and the holder is on the interior of the holder rather than on its end. or its exterior, .because where the .line of contact is just on the interior the ink cannot by any possibility get over the edge 16 of the'holder end. There is also a special advantage in making the supplemen tal cap entirely independent from the main cap, for by sodoing said supplemental cap can have a very slight movement within the main cap sulicient to enable it to be properly centered when the main cap is applied tothe holder. It will be readily seen that Where the supplemental cap vis rigid with the holder it might be difficult to get a tight joint allv the way around, as the supplemental cap might contact with one side of the flared portion 6 before it did with the other.

20 designates a hole in the end of the cap 7, through which air may be blown or a small wire or other implement inserted to force the supplemental cap 8 out of the main cap Whenever it is desired to remove said supplementalcap.

My improvement'is such that it can be applied to almost any style of pen by simply making the supplemental cap 8 of the proper shape and size to fit he interior of the cap of the pen and to ente xtwithin the end 6 of the holder. "'1" Iwish it understdY hatvarious changes in the constructionan rrangement of the parts may be resorted to .without departing from the invention whichis expresssed in the appended claims.

Having described my invention, what Iv claim as new, and desire to secure by Letters Patent, is

l. 1n afountain-pen, a holder provided with screw-th reads and havingan outwardly-flared pen end, a main cap to cover said end, said cap having screw-threads to cooperate with the screw-threads on the holder, and a supplel mental cap separate and independent from the main cap and located entirely within the same within the main cap, said supplemental cap having a pocket or chamber to receive the pen-point and being tapered at its end whereby when the main cap is applied to the holder said tapered end enters and centers itself against the interior of the flared portion of the holder.

2. In a fountain-pen having the usual holder,

and engage the flaring end of the holder and make a tight joint therewith.

3. A non-leakable attachment for fountainpens having a holder with a flared end, comprising a non-perforated supplemental cap independent from .and adapted to be removably sustained entirely within the usual cap of the pen, said supplemental cap having achamber to receive the pen-point and a non-resilient tapered end to enter and iit against the iiared end of the holder.

1n testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

AUGUST EBERSTEIN.

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