Improvements in Fountain Pens.
Year: 1894

page_text: Date of Application, 14th Sept., 1894-Accepted, 20th Oct., 1894
COMPLETE SPECIFICATION.
Improvements in Fountain Pens.
I, IWAN GOLWER, of 67 Mühlenstrasse, Riga, in the Empire of Russia, Photo-
grapher, do hereby declare the nature of this invention, and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement :-
A great defect in connection with fountain pens as hitherto constructed is, that
the quantity of ink delivered remains always constant, whether thin or thick lines
are being produced; moreover the consumption of ink is not sufficiently economical
in such fountain pens, and the result is that very often blots are made through the
point of the pen not being able to use up all the ink delivered to it.
The before mentioned defects have been obviated in the fountain pen constructed
according to the present invention, besides which it has the advantage of a
simplified construction which enables it to be manufactured at an exceedingly low
cost price.
The principle of the invention consists in attaching an elastic tube to the split
in the writing pen or nib in such a manner as to cause the ink supply to be
regulated thereby, according to the opening of the split caused by the pressure of
the writer on the point of the pen when writing.
It is obvious that the pen and the tube may be modified without altering the
principle of the invention, and the accompanying drawings show one method in
which the invention may be carried into practice.
Fig. 1 shows an enlarged view of the pen separately.
Fig. 2 is a longitudinal section through the pen and its holder.
Fig. 3 is an enlarged sectional view through the top end of the holder and
showing a modified form of cap for closing the reservoir.
Fig. 4 is the pen-carrying socket.
Fig. 5 is a section on the line x-x of Fig. 1, and
Fig. 6 is a detail drawn to a larger scale than Fig. 2.
The fountain pen consists of a hollow stem or holder and of the pen proper. The
stem or holder consists of a reservoir tube a, which is closed at its upper end by a
centrally perforated stopper with a small tube c passed therethrough. This
tube c is closed at its outer end by means of an easily regulated device which allows
of preventing the passage of the air therethrough. The device adopted in Fig. 2
consists of a micrometer screw, the point of which enters the tube c, while Fig. 3
shows a screw cap.
The
The lower end of the reservoir tube is provided with a pen-carrying socket e
The
(see Figs. 2 and 4), which receives and holds the pen proper or nib F.
reservoir tube a is closed at its lower end by means of a cork 9 perforated through
the centre so as to receive the tube whose outer extremity is of smaller diameter
to form a short neck or nipple i. The pen or nib F has a space or opening at k,
into which pass the rearward extensions m of the points of the nib.
extensions m are connected to the neck i of the tube by an elastic tube n.
the purpose of rendering the connection between the tubes and h easy and more
secure, a ring Z fitting around the neck i is first introduced a short distance into
the end of the elastic tube n and the short projecting end of the latter turned back,
as shown at Fig. 6, when the tube n can be more easily placed over the neck i and
then be pushed over the tube h.
When the reservoir tube a is supplied with ink, its
through the tube n, but it is prevented from so doing
tightly around the rearward extensions m of the pen
For
tendency will be to run out
by the elastic tube n closing
points, as shown in Fig. 5.

page_text: By, however, exerting a pressure upon the points of the pen, as when writing with
it, the slit in the points opens out and thereby displaces the extensions m, which
in turn open the elastic tube n and allow the ink to flow.
It is obvious that by this arrangement the ink is only allowed to flow when
writing, while at the same time the flow of the ink is regulated automatically
by the amount of pressure exerted on the points of the pen and the consequent
opening of the split, so that when writing only just the exact quantity of ink
required for the production of thin or thick lines is allowed to flow down. The
very simple connection between the rearward extensions m of the points of the
pen and the elastic tube n allows of replacing or exchanging a pen-nib with
the greatest expedition and without any difficulty whatever. As the reservoir
only consists of a tube, it is an easy matter, compared with other constructions
of fountain pen, to clean it, and moreover the arrangement of the screw cap d,
Fig. 3, or a micrometer screw, Fig. 2, forms a means for preventing the ink from
flowing toward the nib when the pen is not in use, while at the same time the
exclusion of air from the ink prevents the latter from deteriorating.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what 1
claim is :-
1. A fountain pen having an elastic tube attached to the lower end of the
reservoir and to the points of the writing pen or nib, in such a manner as to auto-
matically regulate the flow of ink according to the extent of the opening of the slit
in the pen caused by the pressure of the writer on the pen, substantially as herein
shown and described.
2. The improved fountain pen constructed substantially as herein shown and
described.
Dated this 14th day.
1004
IWAN GOLWER,
By Harris & Mills,
23, Southampton Buildings, London, W.C., Agents.