US879817A - Self-filling fountain-pen. - Google Patents

Description

@l-879,817. BATENTED FEB. 18, 1908 P. P.- FLURNY.l

-SELP FILLING FOUNTAIN PEN. APPLIUATIOH rILnINov. 2o, 1907.

Sumnior,

lar, of har the hollow interior of a small head -12 the barrel ti ht, vwhile a slight 1J'1ins,'crewir`1gl of us square orangu rubber or the like, is inserted 1n tionally therein, thus restricting the area of such p assagefor a purpose that will a pear hereinafter. Said pin may be provide with to facilitate withdrawal of l the same and enable it. to be used also as a .cleaner for any 'of the meta obstructions lodged in the hollow interior of the lug 8.

The cap designate at 13 is of novel construction and with its arrangement forcoperation .with the other novel elements, constitutes an essential feature of myv invention. Said ca is preferably made'oi hard rubber or the like, and is contracted and made thin at a point near its open end as shown at 14. The inner diameter of this contracted portion is vsuch as to cause it to have a close slidin it over the metallic ferrule or sleeve Tie reason for thinning the material at this point is to secure greater elasticity to the end that the cap may have a closer lit upon the -ferrulek end of the barrel while being caable of sliding easily upon it. A metal liand 15 may be secured around the open end of the cap to prevent splitting or other injury thereto, when in use in its usual capaclIty of protecting the pen point, as shown in 2(i6 is a corrugation or depression at the pen end ofthe barrel 1 in order to avoida suction and drawing the ink from the pen when the cap 13 is removed from its position shown in Fig. l. The cap 18 is adapted to engage the stop 17 when placed in position to protect the pen point as shown in Fig. 1.

When the pen is toV be filled the plug S is unscrewed enough to uncover passage 10; the cap 13 is vthen slid over ferrule 3, virtually forming therewith'a ump cylinder and piston. Upon now with rawing the cathe air will be drawn from barrel 1, through) the hollow plug 8, and, the pen point havi e been previously inserted in ink, the ink Wrill be drawn by suction into the barrel 1 and. fill the same. The passage 9 being constricted by pin 12, the inlowing ink will iill and close said passage upon the withdrawal of the cap, thus preventing the influx of air and conse uentdlscharge of ink before plug 8 could e screwed down.

The purpose of the corrugations 5 on ferrule 3 is to admit a small quantity of air and thus gradually break th'e suction within'icap 13 upon its withdrawal and thus enable it to be removed gently without violent reaction. It will be ap arent that by theemployment the cap 13- of hard rubberor the like, l pro-- `-vide vtwo substances ofunlihe composition plug 8 and held fric-k `1 and then screwing it 4ticular material oi ferrule 3.

y scribed.

lthereon adjacent its outer end.

ic ferrule 3 in conjunction with eresia whchare therefore muchlbe'tter adapted to avoid iunnecessary lrictidn and thus form a closer iit so insuring 'a etter suctione'ect withl easy movement one upon the other, than would be the case were the sliding fit between two substances `of thesame or like composition. Anotheraiinportant feature of my arrangement and which avoids the necessity of knocking or j rring the pen in order to force the inkt ough and start the pen is effected by first` .nscrewing the plug 8 more or less depending how much pressure is to be exerted on the ink the barrel back into its normal position when 'the ink ,will force towards and through the pen without scattering or spill ing the ink as is usual during similar opera` tions. l do not desire to be limited Various metals or alloys may be selected for ornamental or utilitarian considerations, and l even contemplate the possible employment of certain non-metals therefor, the essential point be# that the materials of cap 13 and ferrule in -3 e of sufficiently unlike composition to insure effective fitting with the least friction.

' Having nonr fully described my invention and set forth its advantages, what I claim as new and desire to secure by Letters Patent is as follows 1. A combined closure and suction cap for self-filling fountain pens having a portion of its length of contracted and tlnner cross section and adapted to engage at that point only the exterior surface of aifountain penA barrel. 'i

2. A combined closure and suction'cap for self-lling fountain pens having formed thereon a .drawn in and thinned annulus adjacent its open end for the purposes de- 3. A fountain pen comprisinga barrel having an elongated metallic upon an end thereof, anda suction cap a apted forclose sliding it with said ferrule, sai ferrule havingair inlets adjacent its outer end.

Il. Afountain pen com ing an elongated metal 'c ferrule .secured upon an end thereof, and a suction cap a a ted for close sliding fit with said ferrule, sai ferrule havingcorrugations formed rising a barrel hav- 5. A fountain pen comprising a barrel having` -a bore t 'ough itsrear end and a headed plug for engagement with said bore, and exten ing a little way into the reservoir and forming an annular recess with the barrel during the filling operation of the pen, said plug having a normally closed passage therethrou h arranged to be uncovered upon a parta withdrawal of the plug.

6. A fountain pen comprising a barrel havsou . as to the parferrule secured ing a partiallythreaded bore through its rear Closed circular passage therethrough arranged to be uncovered upon a partial Withdrawal of sard plug, and an angular pm adapted for frietional engagement with 'the Walls of said passage. f

T. A fountain pen comprising a barrel having' a pen at one end and a here through its other er rear end, a plug adapted for airtight engagement with said bore and having a swfon adapted to project into the barrel I and forni an annular recess with the'sanle in presence of two Witnesses.

PARKE l). FlJOURNOY.

Witnesses W. E. SCHOENBORN, @names LOWELL HOWARD.

In testimony whereof I alhx my signature

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