Improvements in Fountain Pens.
Year: 1890

page_text: Date of Application, 23rd Sept., 1890-Accepted, 1st Nov., 1390
Improvements in Fountain Pens.
I, BENJAMIN WILLCOX of 47 Lincoln's Inn Fields, in the County of Middlesex,
Patent Agent, do hereby declare the nature of this invention, which has been com-
municated to me from abroad by The Eagle Pencil Company of 73 Franklin Street,
New York City, in the United States of America, and in what manner the same is
to be performed to be particularly described and ascertained in and by the following
statement :-
The fountain pen to which this invention relates, is one having a reservoir contained
in the handle, a pen tip or holder removable therefrom, and an ink duct inserted in
the pen tip as a plug between which and the pen tip the pen nib is inserted and held.
In the accompanying drawings
Figure 1 is a longitudinal axial section of the complete pen.
Figure 2 is a view of the pen tip or holder detached.
Figure 3 are views of the duct in perspective and as seen from the end.
The fountain pen consists of the tubular pen tip or holder A preferably of sheet
metal, provided with the rubber tube a inserted in its rear portion and projecting from
its rear end; the ink reservoir B is preferably of glass and is fitted upon the pro-
jecting end of the rubber tube a; the handle or case C (preferably of sheet metal)
enclosing the reservoir B and fitting tightly upon the pen tip or holder, which for
this purpose is formed with a swell or knurl d; and the plug like duct D, made
preferably of hard rubber, fitting into the front end of the tip or holder A, so as to
hoid securely the pen nib P inserted between it and the pen tip. A cap D¹ is provided
to cover the pen when not in use.
The duct D is a solid plug and has formed in it, upon that side which adjoins the
pen, one or more longitudinal grooves (see Figure 3) through which the ink passing
from the reservoir through the rubber tube a is led to the front end of the duct and
delivered to the pen. Too free flow of the ink can be prevented by pressing the duct
back against the end of the rubber tube a. The front end of the duct is brought to a
point by gradually tapering the plug for a portion of its length on the side opposite
the pen nib P. The tapered portion which bears against the underside of the split
part of the pen, is apt in some cases, owing to inequalities and irregularities of shape
in the body of the pen, to bear against the ribs with such force as to spread them
apart. To remedy this there is formed in the tapered end of the duct a slot or
"kerf" c, (which can readily be made by a fine saw) of such length and dimensions
that the front end of the duct becomes in effect a spring tongue which while lying
closely against the underside of the pen will yield and adapt itself to different shapes
of pens.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. A fountain pen having a reservoir containing handle, a pen tip or holder
removable therefrom, and a duct consisting of a solid plug tapered or reduced at its
front end from one side, fitting into the tip so as to form in conjunction with the
latter a holder for the pen nib inserted between them and longitudinally grooved or
channeled upon its exterior at the point where the pen is so inserted, as hereinbefore
described and illustrated in the accompanying drawing.

page_text: 2. The plug like duct adapted to fit as a plug in the pen tip or holder and having
in that portion of it which lies under the split portion of the pen nib a slot or "kerf" c
as hereinbefore described and illustrated in the accompanying drawing.
Dated this 23rd day of September 1890.
J. H. JOHNSON & Co.,
Agents.