US802668A - Fountain-pen. - Google Patents

Description

PATENTED OCT. 24, 1905.

H. TAYLOR.

yFUUNTAIN PEN.

APPLICATION FILED 00T.2z,1904.

' tion whereby the reservoir "rnfr ein,

NEW JERSEY,s

ASSTGNOR TO AIKTN, A CORPORATTON OE FUUNTMHNMPIEIM,

Specification of Letters Patent.

' Patented Oct. 24:, 1905,

Application filed October 22, 1904. Serial No. 229,600.

To a/ZZ whom it may concern: p

Ee it known that T, HUsToN TAYLOR, a citizen of the United States, residing at Waterville, inthe county of (lneida and State of New York, have invented a new and useful' Tin-- provem'ent in Fountain-Pens, of which the following is a specification.. i

My invention relates to fountain-pens of the so-called self-filling type, and the objects are to provide a filling device that is durable, ecieut in operation, and simple in construcmay be charged with ink by means of atmospheric pressure. li attain these objects in the manner illustrated in the accompanying drawings, in which- Figure l' is a longitudinal cross-sectional view of the complete fountain-pen; Eig. 2, .a cross-sectional viewshowing a modification of the feed-d uct and air-tube, and Eig. 3 a cross-sectional view showing the air-pump in the form of a piston.

The fountain-penis composed of the usual barrel or ink-reservoir l, having the inl{feedV ing device 2, (provided with the ink-port 3.) e usual-pen 4: is secured in the barrel adjacent tothe ink-feed. These maybe of' any suitable or desired type. The air-tube 5 is in communication with the ink-feed 2,and extends the entire length of the barrel and into the air-chamber 6, formed by the pumping device 7, securedto the barrel 1 and protected by the cap 8. 1 I

ll do not limit myself to the use of the bulbsyringe shown in Eig. l, as a piston 20, Vsecured in the barrel and operated by the rod 2l, is an obvious equivalent therefor. l A port 9 is made in the air-tube 5 and communicates with the feedport 3, or, as shown in Eig. l, is immediately adjacent to the inkoutlet of the barrel. This latter outlet 10 is the one through which the inky Hows to the feed-port 3, and thence 'to the pen 4 and is of such size that the friction of the ink against its walls will resist the flow of ink when pressure is applied by means of the air-pump,

thus allowing the air in the barrel above the ink to pass out through the tubev 5, port 9, and port 3 withoutA expelling the ink in the lower part of the barrel,which normally feeds through the opening 10 into the feed-port 3. Tn other words, pressure on the ink has overcome the fricthe air is expelled before the.

tional resistance odered by the port or opening l0. 1

The operation of the device is as follows: TheY fountain-pen being empty is held in a substantially upright position with the pen 4C and end of the barrel l submerged in the ink with which the pen is to be filled. The cap 8 having been removed, the pumping device 7 may be worked. On compressing the air in the barrel l it 5, the ports 9 and 10, and the feed-port 3, bubbling up through the ink in the bottle or other container. 0n releasing the air-pumping apparatus the air is raretied in the barrel, and the atmospheric pressure on the ink in the container will cause a portion of it to liow up the port 3 into the barrel 1. On the next compression of the air in the barrel it is forced down the the port 3, bubbling out through the ink, the opening 10 being, as before described, so small that the frictional resistance holds the ink back in the barrel and permits only the air to escape. This operation is assisted by reason of the tendency of the ink to flow up the barrel and T of course realize that a minute portion of ink will necessarily pass out with the air on each compression; but experience has shown that this is so small as to be negligible, the inflow always being many times greater than the outiow. This compression and rarefaction of the air in the barrel is kept up until the air is replaced with ink, when the cap 8 may be replaced and the pen is ready for use. During the pumping action the reservoir or barrel l receives its supply of ink almostfentirely through theink-port l0, though according to the size of the pumping device 7 and the rapidity with which it is operated some ink may be drawn in on the suction-stroke through the air-tube 5 and pass out ofthe upperend of the latter intothe reservoir. However, under allconditions the air-port 9 and the ink-port `l() are so formed that the ink-port provides greaterfrictional resistance for the ink than the air-port for the air on the air-expelling stroke of the pumping device, whereby there will be a more rapid expulsion of air than dis- 1 placement of ink, so that the ink rapidly gains 'in volume within the barrel and quickly fills the latter..

is forced out through the tube tube 5 through the vent 9 and along follow the air down the tube 5.

IOO

are in use in fountain-pens, and l claim nothing new With respect to that feature alone; but

What l do claim as my invention, and desire to secure by Letters Patent, is-

1. A self-filling fountain-pen provided with a pumping device, and separate air and ink ports, the ink-port having a greater frictional resistance for 1the ink, than the air-port for the air, on the air-expelling stroke of the pumping device.

2. A self-filling fountain-penprovided with a pumping device and separate air and ink ports in communication with the feeder, the

ink-port having a greater frictional resistance' for the ink, than the air-port for the air, on the air-expelling stroke of the pumping device.

3. A selffilling fountain-pen comprising a barrel, an ink-feeding device at one end thereof provided with an ink-port, a pumping device at the .other end thereof, an air-tube Within the barrel in an open communication there- With at one end, and an air-port in communi- -cationyvith the ink-feed at the other, the inkport having a greater frictional resistance for the ink, than the air-port for the air, on the air-expelling stroke of the pumping device.

eoaece 4. A self-filling fountain-pen comprising a munication therewith at each end and provided With an air-port in communication with the feeding device', the ink-port having a greater frictional resistance for the ink, than the airport forthe air, on the air-expelling stroke of the pumping device.

l 5.' A self-filling fountain-pen comprising a barreLan ink-feedin g device at one end thereof having an ink-port therein communicating -With the interior of the barrel, and an air-tube extending the entire length thereof, one end of which communicates with the interior vof the barrel and the other provided With an airport communicating'with the ink-port, and a pumping, device in communication with the s s y air-tube and barrel, the linlrport'having a f greater frictional resistance for the ink than the air-port for the air, on the air-expelling stroke. of the-pumping device.

" HUSl-ON TAYLOR.

Witnesses: l

NICHOLAS C. Boem, HENRY B, Bonn.

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