US1343521A

US1343521A - Fountain-pew

Info

Publication number: US1343521A
Authority: US
Publication date: 1920-06-15
Anticipated expiration: 1937-06-15

Description

A. C. BADER.

FOUNTAIN PEN.

APPLICATION FILED Nov. I7. I9I9.

Patented June 15, 1920.

Kv NN j. magg/m UNITED STATES PATENT OFFICE.

.1 ANTHONY c. BADER, or ALTA, IOWA,

FOUNTAIN-PEN.

To all whom t may concern.'

Be it known that I, ANTHONY C. BADER, a citizen of the United States, residing at Alta, in the county of Buena Vista and State of Iowa, have invented a new and useful Fountain-Pen, of which the following is a specification.

This invention relates to an improved fountain pen, and more particularly to one of the self filling type, adapted to permit filling thereof, without the use of the ordinary and well known rubber sack or bulb as an ink container, thus obviating the objections to pens of the latter type, due to the deterioration of the sack or bulb, and lending to the present device, relative permanency of use. j

Among other objects of the invention are to provide improved means for filling the barrel of the pen and holding said filling Vwhich will appear as the description proceeds, .the invention resides in the combination and arrangement of parts and inthe details of construction hereinafter described and claimed, it 'being understood that, within the scope of what is claimed, changes in the precise embodiment of the invention shown can be made without departing from the spirit of the invention.

In the accompanying drawings:

i Figure 1 is alongitudinal sectional view of the complete fountain pen;

Fig. 2 is a view showing the same in a position to be filled and showing the cfeeding device for theV pen point, as .distinguished from the position of the feeding device as shown in Fig. 1 after the barrel of the pen has been filled;

Fig. 3 is a detailed view at right angles to Fig. 2 of the device for filling the pen barrel and;

Fig. 4: is a detailed view of the feeding device for the Apen point.

Referring to the drawings in detail, in which like reference characters designate corresponding parts throughout the several views, my. improved fountain pen is shown Specification of Letters Patent.

Patented June 15, 1920.

Application filed November 17, 1919. Serial No. 338,445.

ing internally threaded as at 11 and the other end internally threaded as shown at 12 and externally threaded as shown at 13. The internal threads 12 are designed to receive the reduced threaded extension 14 of a plug 15 preferably beaded as shown at 16 and apertured to constitute a pen holder for the pen point 17 rl`he pen point 17 is held in the aperture 18 in conjunction with a feeding` device 19 preferably of semcircular cross section and provided with a longitudinal groove or channel 2O terminating short of the anchor-shaped head 21, that is, at a spaced distance from the point of the anchor head. The anchor head provides the opposed grooves or recesses 22 at either side of the reduced portion of the feed shank thus provided and against which the pen point 17 is fitted in order to be engaged in the cylindrical opening 18 leading from the interior of the barrel 10 which is adapted for containing the writing fiuid, or ink. These recesses 22, provide means for receiving excess ink or surplus ink, that might come out between the pen and the feeding device.

Engaged in the threads 11, is a plug 23,

which plug is externally threaded for this purpose and provided with a central axial opening or passage 24C of circular cross section or otherwise. This passage is designed to receive the piston rod or push rod 25, which has mounted on its inner end, a plunger or piston 26, preferably in a form of a sleeve having threaded engagement with the piston rod 25, as shown at 27, so as to permit adjustment of the plunger' thereon. The plunger is also provided with spaced circumscribing flanges 28, between which is designed to' be wound, or otherwise suitably secured, a packing 29 of cotton packing or otherwise, which is wound on the rod producing the member 25, the space between the packing rings or iianges 28 being packed around completely full, larger in diameter in the center to insure proper suction in filling the barrel in the manner to be hereinafter more particularly set forth.

The plunger fits snugly within the bore of the barrel 10 so as to produce a liquid tight joint in contact therewith and said plunger carries a rubber or like washer of cushioning material as indicated at 80, adapted to close against the plug 23, in order to prevent the escape of ink through the passage 24: when the barrel is filled or contains ink. The

piston rod is made in two sections so as to fold one on the other, one section being provided with a transverse longitudinal slot 3l at the section to which the plunger is seg cured, and pivotally receiving therebetween, as shown at 32, the relatively flat section 33 near one end of the latter. This end is recessed on opposite sides, as shown at 34, in order to permit convenient grasping thereof in swinging the section 33 on its pivot to extend in alinement with and from the section provided with the slot 3l, or to fold into the slot 31, when the oval shaped head 35, owing to its oppositely tapered formation, will readily pass by the plug 23 at the outer end of the latter, and by friction thus produced, retain the section 33 in overlapping relation to and contiguous with the section provided with the slot 3l. Furthermore, the piston rod is provided at the slotted portion with recesses 36 which are to permit the insertion of a finger nail or an object in order to displace the section 33 fromthe slotted portion of the piston rod, whereby it may be swung outwardly to lengthenthe piston rod in the manner shown in Fig. 2 of the drawings.

In the operation of filling the pen, the plug 23 which is disposed to project from the valve lO at the threaded end l1, is eX- ternally threaded and has engaged 1thereon a cap 37 of tapered formation, so as to frictionally receive the cap 38 when the pen is in use. AThe cap 38 is designed to cover the pen point and the feed end ofthe pen, so as to protect the same when not in use,

vand is internally threaded as shown at 39,

spaced from its end portion d0, to engage the external threads 13 of the barrel l0, when the cap is in position, while the tapered portion 40, is designed to fit over the cap 37 and facilitate frictional engagement of the two parts, when thefpen is in use. By removing the cap 37, the piston rod may be straightened Aout by moving the section 33 into alinevment with the main section of the piston rod 25, by swinging it on its pivot 32, when the plunger may be moved forward to the position shown in Fig. 3 of the drawings. Thus, by dipping the pen point into the writing fluid or ink in a well or fount, and drawing outwardly `on the piston and piston rod,"the ink will be effectively drawn or suckedvinto the barrel, the washer 30 by engagement withtheplug 23, serving to prevent'the escape of the ink. The section 33 y Y is then moved on its pivot 32 into the slot 31,

and by engagement of the head 35 with the end of the plug 23, the plunger or piston will be held so displaced, at the same time rendering the piston rod relatively short, 'so that it will be accommodated with the cap 37 VwhentheV latter Yis applied as heretofore set forth. through the groove 20 and to the pen point,

The ink will then be fed down in such a manner as to insure a direct and suflicient flow or supply of ink for use at all times. The plug 23 is also provided with means to limit the engagement with the barrel l() at the threads ll, consisting of an annular stop 4l, thus insuring that a portion of the plug will be left projecting so as to permit engagement of the cap 37 therewith.

By this means, the construction of the pen will be greatly simplified, and the objection to the use of rubber sacks or bulbs, in fountain pens, will be entirely overcome and the life of usefulness of the device will be greatly enhanced owing to the fact there is no such sack or bulb to deteriorate and render it necessary to repair the pen in order to permit its further use. The pen parts are preferably all made of hard rubber, except the pen point, although the plug 23 may be made of rubber, aluminum or other metal in addition to the plunger and piston rod, the parts being suitably decorated if desired.

Having thus described the invention what l claim is:

l. A self filling fountain pen comprising a barrel, a feed device at one end of the barrel, adapted for receiving a pen point, a plunger slidable in the barrel, and means to close the opposite end of the barrel, said last mentioned means comprising a plug, a foldable piston rod connected to the plunger and operating through said plug, a cap over the plug and a cap engaged on the opposite'end of the barrel and adapted to be engaged over the first-named cap when the pen is in use, said rod comprising a slotted portion, another portion pivoted to the end of said slotted portion and movable in the slot thereof, said movable portion having lateral projections at its free end.

2. A fountain pen comprising a cylindrical barrel, a feeding device engaged in one end of the barrel, a pen point in connection with said feeding device, a plug engaged in the opposite end of the barrel, a cap for engagement over said plug, a plunger in the barrel having a packing and means to prevent the escape of writing Huid through the pen and to break the straight line of escape therethrough, said plunger having an extensible push rod operable through said plug, said rod comprising a slotted section extending throughr the pluo', and a second section pivoted to the first section near the free end thereof and movable into the slot thereof with its free end disposed frictionally into engagement with the plug, the first section having a recess in one side adjacent to the pivot of the pivoted section.

3. A fountain pen comprising an open ended barrel, a holder detaehably engaged in one end of the barrel` a pen point retained rel and having an opening therethrough, a plunger provided with a packing engaged in the barrel and adapted to be reciprocated therein in filling and expelling the ink frorn the barrel, a piston rod for said plunger, a washer on the piston rod adapted to close against said plug to seal the opening in the plug, said piston rod operating through said opening, said piston rod having a slotted inner portion and an outer portion pivoted in said slot, said outer portion being relatively fiat and having a tapered head adapted to bind against the plug when the outer portion is swung into the slot to fold said plunger against movement, and a cap engaged on said plug over said piston rod.

4. The combination with the barrel of a fountain pen having a suitable feeding device for a pen point; of a filling device for said barrel, comprising a plunger having a rod operable through one end 0f the barrel, said plunger being operable in the barrel to create suction when moved in a direction away from the feeding device, means for closing the straight line of escape of the fluid from within the `valve to the end thereof through which said rod operates, said rod being slotted to the free end thereof, a relatively flat outer rod section pivoted near one end in said slot near the free end of the rod, the adjacent end of the outer section being recessed on opposite sides and the other end thereof being provided with a relatively oval-shaped head tapered in opposite directions and designed to bindingly engage the end of the barrel in order to hold the plunger in an outward position, said rod being provided with recesses at opposite sides to permit displacement of the pivoted section, a cap of the adjacent end of the barrel, and a cap at the opposite end of the barrel adapted to be engaged over the first named cap, when the pen is in use.

In testimony that l claim the foregoing as my own, l have hereto afIiXed my signature in the presence of two witnesses.

ANTHONY C. BADER.

Witnesses:

P. MonRIssnY,

J. W. WILKINSON.