US979427A - Fountain-pen. - Google Patents

Description

borough and county of i Groen 'HEBER CARTER, or NEW YoaK, N. Y.

FOUNTAIN-PEN.

Patented Dec..- 27, '1910.

Application filed October 22, 1909. Serial No. 523,963.

To all whom 'it may concern:

Be it known that I, GEORGE HEBER CARTER, a subject of the King of England, residing at Richmond Hill, in the city of New York, Queens, and State of New York, have invented certain new Iself-lilling complish l are,

also to prevent .is .illed and the. suction is released, fand abarrel of varying diameter.

Y place, 'valves which and useful Improvements in Fountain- Pens, of which the following is a full, cl'ear, and exact'specitication.

My invention relates to lfountain pens and particularly to that class of such pens as contain within themselves the means whereby they may be refilled and which are called fountain pens. rIhe type of such pens to which my invention relates is that wherein the cap of the pen acting as an exterior piston, draws the ink into the barrel through the nozzle.

The object of my invention is to produce a simple and economical construction of such device and one that shall be simple in operation and have nolpassages which will be likely to clog up, and consequently will not get out of order and'will not need fre` quent cleaning.

Other and important objects which I acto prevent the dischar e of any small amount of ink which may e in the barrel, through the nozzle, when the cap is setto position to act as a piston and fill the barrel; also to prevent the further drawing in 'of ink when the barrel is filled; any leakage of inkwhen the vsuction of the piston is released; and to effeet these and other objects and advantages which will appear more fully hereafter, my inventionconsists, among other things, in the employment of a cap acting as an exterior pump piston and which I prefer to perforate, together with a barrel having a bore to permit such plump action to take combined wit oppositel-acting automatically check t e inflow of ink when the flow when the suction is released. Such valves as are illustrated are a float valve for preventing further feeding when the4 barrel is filled, with means `for securely sealing the bore when the barrel is filled, a check valve for'preventing back flow when'the barrel upon the barrel,

barrel is filled and the out-.-

One embodiment of my invention is illustrated in the accompanyingl drawing wherein- Figure 1 is an elevation of my -improved fountain pen closed, the cap being shown in section. Fig. 2 is a longitudinal section (the nozzle being in full lines) through the pen, the parts being in the position they will assume in filling, and the pen being partially filled. Fig. 3 is a cross-section through the perforated stem of the set valve, barrel packin ring, and cap; vand Fig. 4 is a detail of the rear end of the barrel, filled with ink, with the float valve in sealing position and the set valve sealing the end of the barrel.l

The barrel 1 of the pen is provided with a nozzle 2, equipped with any suitable variety of feed bar. The cap 3, which is perforated at 4, for purposes hereinafter more fully explained, lits snugly upon the nozzle end of the barrel. The barrel is reduced in diameter at its rear end for a distance of something like two-thirds of its length, and upon this reduced part the cap 3 slides when acting as a piston. A ring packing 5 of soft rubber or equivalent material is seated and securely held, as by cement,` etc., in a groove or channel 6, formed peripherally wall of the cap, while permitting the latter to slide thereon.

The barrel has a bore 7, formed in itsrear end, and the'inner wall of thebarrel; adjacent such bore is tapered as at 8, to form a seat for the ioat ball valve 9. The bore 7 opens into an enlarged bore 10, and .between such bores 7 and 10, a tapered seat 11 is formed in the side walls for the check valve 12, which has a correspondingly shaped tapered face. The outer end'of the bore 10 is screw-threaded and receives the thread'I ed stem 14 of a headed set valve 13. Such stem is formed with an external, longitudinal air duct 15, extending from the base of the valve head to the inner end of the stem and which, when the head is raised, free passa e of air 'from the interior of the barrel to t e interior of the ca The valvehead 'is intende to be manually operatedv and may be round or of other convenient shape externally. It should permits ioo stem 14 may be of such length as that the l check valve will be crowded to its seat by l permit the air to pass out. flhe check valve produce bubbles and Ymay then be removed and the headed set the end of the barrel.

above have its face 16 formed into a good t with y readily in ink, such as cork, wood, etc., and i of the barrel, as in connection the r1ng.washer I prefer to make of soft with the Check valve 12 it forms the-means rubber, cork, or some suitable frictlon matefor sealing the rear end of the barrel when F1511.v the latter is full of ink. To aid this the If the cap 1s retained 1n position, some of I the enumerated parts may be dispensed wlth 'and a practical pen remain, as, for instance, the perforation in thecap may be ornltted, and the check valve and set valve and the loatvalve and its seat and the bore retained.

I claim: lo A fountain pen comprising a perforated, removable cap, a barrel provided' with T0 refill the bel-rel er reservoir, a bore at its rear end, means for causing a tight lit between thecap and the rear end of the barrel, a loose check-valve and a seat therefor at tle outerl end of said bore, .in as far as it will e, and means for ho ding t e same to its seat During this pushing 1n 0f the cap the pgn- 'i after the barrel is filled which means are such stem when the set valve is seated.

' The o eration of my device is as follows: We wil assume that the barrel has previously been used and that the ink has become Substantially exhausted. A slight of ink will still remain, sufficient to forced outL foration 4, in its end should remain open to WlthdlWQ flQm Operatlve P05115we Whle the barrel 1s belng filled. e alr pressure and v 2. fountain pen comprisinga perfowill prevent any passage of air into the barrated, PemQVable Cap, a barrel PT0Vlded-W1th rel 'and consequently any, discharge of ink 1 bore at lts Teal @Il means fol' Causlng a or bubbles through the nozzle; The cap betlght 5t between the Cap and the real' end ing in its inner position, the nozzle is inof the barrel, a iioat-valveand a seat there Sel-ted in the Supply of vink and the nger for at the inner end of sald bore, a checkplaced over the perforation the end of ValVOalld 3.. Seat therefor at the Qlltel' end the cap, closing same, and the cap then 0f Sad bore, and means f01' holdmg s311119 This will canse the cap to its seat. after the barrel 1s -lled which as an external piston and will lift' the check Wlthd'a'wll from Operatlve P051." valve 12, and permit air pass freely from lled; Sub* the barrel into the cap through bores 7 and land air duct 15, and will pum or lift ink into the barrel 'through the nozz e. The iniiow of inkrwill contlnue until the barrel is nearly full, when the lioat valve 9 will automatically iind its seat 8 and will close bore 7. and prevent the further drawin inof ink. e finger will then be remove from the perforation 4, whereupon the check valve 12 will immediately and automatically fall to its seat 11, and will of any ink through 12 will be seated by th 3. A 'fountainl pen comprising a removable erforated cap, a Vbarre provided witha gore at its rear end, a peripheral packing on the rear end of said barrel, a loose, removable check-valve and a seat therefor in said bore, and means for holding same ,to its seat when the barrel is lled.

4.-.'A fountain pen comprising a removable perforated cap, a barrel provided with prevent the passage a bore at its rear end, a peripheral packthe nozzle, The cap ing on the rear end of sai barrel, a floatvalve and a seat therefor at the inner end of said bore, a loose check valve and a seat therefor in said bore, said valve automatically o ningto permit the valve screwed to its seat, eifectually sealing he foregoing it will beseen thatv res are not liable to become clogged. Should there be any occasion, however, for cleaning the barrel, nozzle, or other parts, the set valve and fountam check valve may be removed and the parts able perforated cap, thoroughly washe by using the cap as a bore at' its rear end having a reduced inner portion and an enlarged, threaded outer portion, a peripheral packing on `.the rear end of said' barrel adapted to lit said c ap, 'a float-valve and a seat therefor in said ore, a loose check-valve and a seat therefor at the outer end of said bore, aset-valve and a seat therefor at the end of said barrel, and a threaded, perforated stem therefor ceases, and means for holding same to its seat when the barrel is' filled.A

a barrel provided with arts above described, with. the exception ofp the float valve and the rf packing, wlll preferably be madeV of .hard though `I do not limit myself to such material, as other suitable material may be used. The float valve will preferably bei made of some material which will oat pen comprising a removadapted to seatl said check-valve when .the set valve is closed.

G. A fountain pen provided with a barrel having a rear end reduced in diameter, a removable, perforated cap therefor adapted to fit the nozzle end of said barrel, and a packing on the rear end of the barrel adapted to iit closely Within the cap, whereby said cap performs the double function of protecting the pen point and of acting as a piston to fill the barrel.

7. A fountain pen comprising a barrel having a bore at the rear end, a float-valve and a seat therefor in said bore, a loose checkva1ve and a seat therefor in said bore, a set-valve adapted to seal said borevvhen closed, and to open same When raised, comated from the rear end.

8. Afountain pen comprising a barrel, l a peripheral packing thereon and a removl, able perforated cap fitting snugly upon packing and adapted, whenv removed, to t l upon the nozzle of the pen, whereby said cap performs the double function of prothe pen point and' of acting as a tecting piston to fill the barrel.

In Witness whereof I have hereunto set my hand in the presence of two subscribingvvitnesses.

GEORGE HEBER CARTER. Witnesses:

ADOLPH F. DUIsn, BERNARD BLAsoow.

bined with means for filling said pen oper'

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