US784538A - Fountain-pen. - Google Patents

Description

No. 784,588. PATENTED MAR. 14, 1905.

' F. W. BBNDER.

FOUNTAIN PEN.

APPLICATION FILED JULY 1, 1904.

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IIIIIIIIIIIIIIIIII Maj No. 784,5?,8i

Patented March 14,y 1905.

PATENT OFFICE.,

FREDERICK VILLIAM BENDER, OF HOBOKEN, NEW JERSEY.

FOU NTAlN-PEN.

SPECIFIC ATION forming part of Letters Patent No. 784,538, dated March 14., 1905.

Application filed July l, 1904. Serial No. 214,998.

Be it known that I, FREDERICK VIIILIAM BENDER, a citizen of' the United States, residingat Hoboken, in the county of' Hudson and State ofl New Jersey, have invented new and useful Improvements in Fountain-Pens, of which the following is a specification.

The objects of my invention are, first, to provide a locking device to prevent the ink from escaping; second, to provide a means to break up the air-bubbles; third, to feed the ink rapidly to the pen-point.

My invention relates to a valve which screws into the reservoir and may be moved forward and back in the feed-pipe by turning the reservoir. Near the center of' the feed-pipe isa shoulder which narrows the passage into a small circular passage. rlhe conical end of' the valve fills the mouth of' this small passage when it is moved forward, and thus prevents the ink from escaping'.

My invention also relates to a ribbon-like shaft which is longer than the reservoir and projects from the interior of the reservoir through one of' several depressions in the valve-bar into the feed-pipe, so that when the reservoir is turned the shaft turns round in tle feed-pipe, and thus prevents the air-bubb es.

My invention also relates to a slotted tube which, together with the pen-point, fits into thc feed-pipe. The feed-tube is a circular tube with an ear-like projection from one side which fits under the pen-point. The projection is convex at the extremity on both sides. The slot cuts through the tube and extends almost to the end of' the projection. Different sized pens may be used with this feed-tube. Then the maximum size is used, the sides of' the slot away from the projection are pressed together. This slotted tube produces an easy rapid flow of ink to the pen-point.

l attain these objects by the mechanism illustrated in the accompanying' drawings, in whichw Figure 1 is a side View of' the bar-valve. Fig. .lA is an end View of the bar-valve. Fig. 2 is a view ofthe reservoir. Fig. 3 is a crosssection ofl the feed-pipe. Fig. 4 is a cross-sectant raised portions which are threaded at c and c c". Between the said raised portions are three depressions or fissures d Z d".

The reservoir B is open at one end and threaded in the interior at f1 and about the exterior at f. Between the threads a and the open end is the smooth space p.'

The outer tube D is threaded in the interior at g.

The feed-pipe C has a circular channel .fr and r:, with the shoulder Z in the middle, through which is a small circular passage y. About the exterior near the middle is the collar a. The raised threads fm occupy one-half of the exterior space between the collar and the end of' the feed-pipe. Between the raised threads fm, and the end of' the feed-pipe is the smooth space 0.

The slotted feed-tube E is a cylindrical tube with a circular passage through its length. From one end extends the ear-like projection L'. A slot j cuts through the tube to the circular passage and extends on almost to the end of' the fiat ear-like projection I.

The cap F lits on the end of' the reservoir or on the feed-pipe.

The shaft G is a slender ribbon-like shaft longer than the reservoir and thin enough to go through one of' the depressions d d d".

lhe valve-bar A is screwed on the threads c c c" into the threads e of the reservoir B. The shaft Gr extends through the depression l of bar A into the reservoir.

The slotted feed-tube E is wedged into the passage :r of the feed-pipe with the pen-point fr, so that the entire slot L7' opens on the pen and the projecting ear of' the feed-tube la is near the outer point of' the pen. The smooth end of' the feed-pipe C fits into the open end of the reservoir B. The outer tube D screws with its interior threads g upon the threadsf of the reservoir B and the threads m of the feed-pipe C.

Zhen the closed end of the reservoir is turned or screwed, the reservoir moves in through the outer tube D until the conical end Z) of the valve A enters and closes the passage 1/ in the feed-pipe. When the reservoir turns, the shaft Gr, which protrudes from the reservoir into the feed-pipe passage e, moves about and breaks the air-bubbles.

When the reservoir is unscrewed, the valve moves back from the collar Z, and the ink iows through the passage y into the feed-bar land thence to the pen-point.

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

1. In a fountain-pen the combination of the bar A having the bar portion a which ends in the coneZ and at the other end the three equidistant raised and threaded portions c c c" and between the said raised portions the depressions cZ Z' CZ, the reservoir B having' an opening at one end and having the threaded portion f about the outside and having the threaded portion e in the interior into which tits the threaded portions c c c" of the valve A, the

outer tube D open at both ends having the threaded portion g inside into which tit the threads f of the reservoir and the threads moi' the feed-pipe, the feed-pipe C having the passage a' ,e the shoulder Z in the interior of the saidpassage and the small circular passage g/ through the shoulder Z and having the collar 'a about the outside and the threaded portion m about the outside which threads fit in threads g of the outer tube, the thin ribbon-like shaft G which is longer than the reservoir and protrudes from the interior of the reservoir, the slotted feed-tube E having the slotted tu be part ZL which tits into the passage a' of the feed-pipe and having the earlike projection Z; and having the circular interior passage e' and having the slot g which cuts through the tube and almost to the end of the projection Zt substantially as described.

2. Inafountain-p'en the'locking device con# sisting of a valve-bar A having the conical end Z) and the raised threaded portions c c c which screw into the reservoir B, the reservoir B threaded interiorly at e and exteriorly at f which screws into the outer tube D, the outer tube D having the interior threads g,

the feed-pipe C having the interior passage e and the shoulder Z and the passage y through the shoulder and the exterior collar n and the exterior threads m which screw into the outer tube D, so that when the closed end of the reservoir is turned the conical end of the valve a moves forward and closes the passage y of the feed-pipe C thus locking the device and preventing the egress of ink substantially as described.

3. In a fountain-pen the device to aid the easy ilow ot' ink consisting of a valve-bar- A having raised threaded portions c c c and depressed.

portions CZ CZ d between the raised portions, the reservoir B having the interior threads e into which screw the raised threaded portions c c c" of the valve and having the exterior threads f, the outer tube D having the interior threads g, the feed-pipe C having the passage the exterior collar a and the exterior threads m which screw into the outer tube D, the ribbon-like shaft G longer than the reservoir which passes out of the reservoir through one of the openings made by the depressions Z CZ' tZ of the valve-bar into the passage .e of the feed-pipe, so that when the reservoir is turned at the closed end the shaft G' moves about in the feed-pipe and breaks the air-bubbles thus permitting an even flow of ink substantially as described.

4. In ai'ountain-pen the slotted feed-tube E having an ear-like projection /tand a slot cleaving the tube and extending almost to the end of the projection Zt and having the interior passage 'L' substantially as described.

5. In a fountain-pen the combination of the feed-'pipe C having the collar u andthe threaded portion m and the smooth space 0, with the reservoir B having the inner threads @and the inner smooth space p and the outer threads f, so that the smooth space 0 of the feed-pipe tits tightly into the smooth space p of the reservoir B and so prevents an overflow of ink into the outer tube D substantially as described.

ln testimony whereof I have signed myname to this specification in the presence of two subscribing witnesses.

FREDERICK WILLIAM BENDER.

Witnesses: v

ARTHUR J. WESTERMAYE, CHARLES` WV. McCANDLEss.

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