US1698384A - Fountain pen - Google Patents

Description

Jan. 8, 1929. 1,698,384

- F. M. ASHLEY FOUNTAIN PEN Filed Oct. 50, 1926 l :FRANK u. ASHLEY, or BROOKLYN, NEW YORK.

FOUNTAIN PEN. Application niet octdter so, 1926. sei-191m. 145,120.

Myinvention relates to fountain'pens' rThe object of my' invention is to rovide an improved construction of the sel -ilhng type of pen, that may be filled easily, has a large' reservoir for ink, 'may be made entirely of hard vulcamzed rubber, 1s provided with a smaller or auxiliary reservoir and a valve to close communication between th the large reservoir .and smaller reservoir. Also a pen 1n which a grip surface 1s pro-- vided for the user having a reduced diam- -E eter relative to that of the barrel of the pen and a part ofwhich also serves as a friction vsurface to hold the pen cap. i

It is not necessary that all of thelabove enumerated features of construction bel incorporated in a single pen, as inl making them for the market certain of the above features of constructionmay bel omitted if desired, but the specific combination of elements shown and claimed hereinv may be incorporated in a pen construction and in such a manner be protected .by patent.

Referring to the drawings which form a part of this'specificatiom Fig. 1 is an exteriorview of a pen drawn f to full scale,fshowi'ng a pen having a large .is provided with ya reservoir A `the ink afterthe filling operation,

diameter of barrel o f normal length and large ink capacity.-

Fig. 2 is a longitudinal -sectional viewl of a pen embodying my invention. I

A, indicates the barrel of the pen, whichi having a smooth cylindrical linner wall A2, The inner diameter of the barrel is enlarged at A3 to provide an annular passage A4: for ink be tween the outer surface of the piston B and barrel at this point. C, indicates a pensee-' tion which may'be'made integral with'the barrel A, if desired,l or mayv be connected thereto by athread'in the usual manner. The pensection is reduced in diameter-at C yand provided with azsmoothl surface to hold the cap of the pen (not shown) by friction. A gripping surfacefor the fingers of the useris p rovided'as illustrated at C2, and a smooth surface at C? to readily shed.

A plug, preferably made separable-from` the barrelA and connected thereto by. a threaded joint at D2, is provided 'with0 a friction surface C4r for the cap, andwith a ,bore D' and a hole D8 piston-rod E Cork enough to 'open end of the tube J, located in the saryto unscrewl .therod of smaller diameter i than lthe bore through which extends a# `packing' material is fitted in the bore around F,` or other suitable.

the piston-rod as shown, and a packing nut f G, which engages a thread'D in the bore, compresses the packing and is screwed into e bore beyond the outer end thereof far permit the threaded end H- of the rodfnut H, connected to the piston-rod to engage the thread Df. 4The piston B, is connected tothe piston-rod at E,u and adjusted relativeto the rod-nut H at such a distancev that when the innerend of the rod-nut is screwed or positioned just outside of the bore D', the back end of the piston will not close` the pass'ageJ\A4, .but when moved a short distance further it will close this passage and shut olf the ink from flowing of the piston B and at the same' time cause the free end of the tube J to keep the hole N in the feed-plug covered to preventv ingress of air 'to` the upper end of the reservoir rom the reservoir to the opposite sideA A. Connected'tothe Afrontend of thev .is provided with one or more passages B to the which lead from the 'reservoir A piston as illustrated. A feed-plug K, is located inv the pen-section C and extends nearly to the inner' end thereof as shown, and la isprovided between the innerend feed-plug and including the space A4 form' ing the annular passage, provides an auxiliary or feedreservoir for ink whilethe main reservoir A of Athe piston;

is closed by the rear end The 'front end of the' -piston abuts` the rear end of the pen-section-C to provide a 4val-ve, which fis closed whenthe rod-nut is screwedfully in to the bore D?, and in ythis positlonv the auxiliary' chamber L is reduced 1n its size but still holds enoughv ink to serve-for writing a number ofgwordsA such' asl signatures, and therefore itis not. neces- ,-nutevery time'the',

penis used'. The provision ofthe auxiliary;

reservoir L, serves a further important function, viz`: it prevent s .ooding, lwhich oftenoccurs when a larg's-eservorgbecolnestime to time.

. be completely and as a may nearly empty, to the barrel on .ha cold day and the air in the barrel is caused to expand and force the ink from the reservoir. In the present pen, the use` of the auxiliary reservoir permits use of the pen withoutl opening the main reservoir, except to refill the auxiliary from K is provided with the usual feed-duct to feed the pen-point M, and is alsoprovi'ded witha central bore K2, in which the tube J fits in close sliding -engagement'with the wall thereof. A hole N leads through the feed-plug to form a passage for air exhaust from the reservoir A filling passage through which ink flow into the reservoir. The outer end of the tube covers the hole N to close the passage just before the passage A4 is opened on the inward or filling stroke of the pistonv B. A film of ink around the tube J adjacent'the hole N prevents any air from passing from the atmosphere to the passage through the hole N, even though the tube is not a perfect sliding fit.

An important' feature of this construction The feed-plu 'is that the piston does not have to be a tight fit in the ba'rrel A, since the air in the res-p ervoir flows freely therefrom through the passages B and tub'e J to the outlet hole N, on the outward stroke of the3 piston, and the ink'ows into the reservoir throu h thesame passages, on the inward stroke o the piston i while the ink that has been drawn into the 35.

`in the cylindrical pen through the Vink-duct K on the outward stroke of the piston is' forced from the pen on .its inward stroke, thus causing the ink to flow through' the ink-duct twice to clean the same, each time the filling operation is carried out,-it of -the feed-plug and 'pen-section is submerged in the ink supply receptacle during the filling operation, which will completely fill-the main and auxiliary reservoir.

- It is obvious that'the main reservoir may during theinward or filling-stroke of the piston'only, the air-expelling stroke leaving the cylinder free from air when the piston abuts the inner' end of thel plug D. vTo per` move easily with a minicon'centric grooves are cut surface, provlding thm mit the piston to mumof friction,

edge portions which of the barrel and make an easy working tight sliding joint therewlth, the edge surface of and adjacent parts Veach edge portion making in effect, a separate piston, and the. groovesv filling withl ink, serve also to provide an eicientjoint. The removable plug D permits the packing to be assembled before the piston is placed vin the barrel of the pen.

It is 'thought that the foregoing description is ample to instruct a person skilled in and also when heat is applied# being assumed that the endV filled by submergingithe Vpen 'extending therefrom contact the innerwall 'having its inner end so this art to fully understand and 'usethe invventiondisclosed. y

Having thus described my invention I claim as new:

1. A fountain pen comprising a barrel havinr its outer end closed 4to form a reservoir tlierein, a piston-rod extending through said closed end, a. piston movable by said rod,

a tube connected to said piston in open communication with'said reservoir, a pen-section connected to said barrel, a feed-plug in said pen-section having a feed-duct formed therein leading to said reservoir, and a bore leading to the atmosphere into which said tube fits in sliding relation; vthe construction being Vsuch thatair is expelled from the reservoir on the outward stroke of the piston and ink may fow into the reservoir on the inward stroke thereof.y

2. A fountain fpen comprising a having its outer end closed to form a reservoir therein, a pen-section connected to the `oppsite end of the barrel, a. feed-plug pro'- barrel i' 4 .videdwith a feed-duct, and with a bore leadin to the atmosphere,.a piston, a tube exten ing therefrom into said bore in open communication with the atmosphere and i with lsaid reservoir, a passage leading from said reservoir to said feed-duct and a pistonrod connected to said piston and extending throughsaid closed end of the barrel.

3. A fountainl pen comprising a barrel.- A

having itso'uter,v end closed by a removable plug p' having packing `mater1al therein to form a reservoir therein, a pen-section'connected to the opposite end of the barrel, a feed-plug provlded with a feed-duct, and with a bore leading Ito the atmosphere, a piston, a tube extending therefrom into said bore in open communication with the atmosphere and with said reservoir, a passage leadmg from said reservoir to said feed-duct and a piston-rod connected to said piston and barrel.

4. A fountain" pen which serves as a reservoir, and having its outer end closed by a plug having a threaded bore, a pen-section connected to the opposite end of the barrel, a feed-plug provided `with' .a bore having an opening in one side thereto the opening` in the eed-plug `that the free end of the tube will vcover the said opening therein until the piston hasiclosedv the passage leading Fcomprising a barrel ,extending through .said closed end of the' feed-duct, a piston-rod sitionedV relative v from the `said reser-.

voir to the feed-duct in slid plug, wl'. en a further movement offthe rod will cause the opening to be uncovered, for the purpose set forth. p

5. A fountain pen comprising a barrel which serves as a reservoir, and having its outer Vend closed by a plug vhaving a threaded bore, a pen-section connected to the opposite end of the barrel, avfeed-plug provided with a bore having an opening'in one side thereof leading to the atmosphere, a piston, a tube extending therefrom into said bore in open communication with the atmosphere through said opening in the feed-plug, and with the reservoir, a passage leading from said reservoiry to said feedduct, a piston-rod connectedto said piston and extending through said plug,' a rodnut on said rod having an inner threaded end so positioned relative to the opening in the feed-plug that the free end of the tube will cover the said opening therein until the piston has closed the passage leading from the said reservoir to the feed-duct in said plug, When a further movement of the rod Will cause the opening to be uncovered, for the purpose set forth.

. -6. A fountain pen comprising a barrel having a reservoir therein, a plug at one end thereof, a pen-section Aat the opposite end thereof, a feed-plug having a feed-duct,

and a central bore therein with an opening in one side. leading to the atmosphere; a piston-rod extending through said plug, a piston on said rod having `a passage therethrough, a tube connected to th open communicationl with said pistn in p 'age in Vthe* piston and extending through sa'd bore beyond said opening therein, a passage formed'in the barrel leading to said feedduct, the arrangement of the partsl being such that the movement of the piston Will p close the passage Sleading to the feed-'duct `and open the passage leading from the reservoir through the tube -to the atmosphene. l 0 I v 7. A fountain pen comprislng a barrel` having a reservoir therein, a plug at one end thereof having its diameter reduced at its outerend and provided with `a friction surface'to hold af pen cap, a pen-sectionu at the opposite` end .thereof having a diameter equal to that of'the plug to hold a pen cap, a feed-plug having a feed-duct,` and a central bore therein with an opening in 4 one side leading to .the atmosphere;l a piston-rod extending through said plug, lapiston on said rod having a passage therethrough, a tube connected yto the piston open communicatlon .with `said' passage 1n r p the pistonand extending through said .bore

' beyond said opening therein,` a passage formed. in th'ebarrel leading to said vfeedduct, the arrangement. of t .parts .being such that. the movement of. lthe pi'stonfwill sage comprisin close the passage leading to the feed-duct and open the passage leading from the reservoir through the tube to the atmosphere.

8. A fountain pen comprising a barrel having a reservoir therein and closed at its'- outer end, a pen-section connected to the front end of the barrel, a feed-plug, a pasg an auxiliary `reservoir formed between the main reservoir, pen-section and feed-plug, said feed-plug having a feed-duct and a central bore therein With an opening in one side thereof leading to the atmosphere; a piston-rod extending through the closed end of said barrel, a piston on said rod having a passage therethrough, a Atube connected to the piston in open communication With said passage in the piston and eX- tending through said bore beyond the opening therein; the arrangement of the parts being such that the movement of the piston will close the passage leading to the feedduct and open the passage leading from the reservoir to the atmosphere in one position of the piston and close the passage leading to the atmosphere and open the passage leading to the feedthe piston.

9. A fountain pen comprising abarrel havlng a reservoir therein and closed at y'its outer end, a pen-section connected to the front end of the barrel, afeed-plug, a passage comprising an auxiliary reservoir formed betweenthe main reservoir, pensection and feed-plug, said feed-plug having a feed-duct and a central bore therein with an opening in one. side thereof leading to the atmosphere; a'piston-rod extending through the closed end of said barrel, a piston on said rod having a assage therethrough, a tube connected totlie piston in open communication With said passage in the piston and extending through said bore beyond the Y opening therein; the arrangement of the parts being such that the movement of the duct in another position of ing tothe atmosphere and open the passage leading to the feed-duct in another position of the piston and will close the main reservoir and communication with the atmosftween the auxiliary reservoir and feed-duct, when in its lowest position.

10. A fountain'v pen comprising a main reservoirrand a .supplemental reservoir, an air' tube extending thru said supplemental reservoir to thev vmain reservoir, means for closing .communication between said main reservoir'and supplemental reservoir and means for'drawing ink int'said main and supplemental reservoirsaid means serving to expel air from said main reservoir and means for closingsaid air tube to prevent lphere Without closing communication beairfrom flowing from the atmosphere into tlibe exltending thru' said pensection and said main reservoir. piston lnto said main reservoir and means 10 11. A fountain pen comprising a main for drawing ink into said reservoir, A and reservoir, a piston, `a pen-section having a expelling the air therefrom thru 'saidvtbe 5 supplemental reservoir formed therein, a to the atmosphere.l

ymanually operated reciprocatingpvalve for In testimony whereof-lhave aixed my closing communication 4between said' main signature. reservoir and supplemental reservoir, an air K FRANK AM. ASHLEY.

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