Improvements in Fountain Pens.
Year: 1891

page_text: Date of Application, 26th Aug., 1891
Complete Specification Left, 16th Nov., 1891-Accepted. 19th Dec., 1891
PROVISIONAL SPECIFICATION.
Improvements in Fountain Pens.
I CHARLES WOODBURY ROBINSON of 16, Holborn London Gentleman, do
hereby declare the nature of this invention to be as follows:-
My improvements relate to the class of fountain pens known as caligraphic or
nib pens, and relates more particularly to the feed bar in the same, which conducts
the ink to the nib of the pen. I am aware that feed bars of varying design and
construction have been used in connection with these caligraphic pens, but the
essential feature of my feed bar is that while originally round in section, a longi-
tudinal cut is made on two opposite sides of the same, making a free passage from
the ink reservoir to the nib. Along one of these passages the ink travels
downwards and along the other the air passes upwards to take the place of the ink
.withdrawn.
In order to more fully explain my invention I have illustrated the same in four
figures upon the accompanying sheet of drawings, marked as far as possible with
like letters of reference to like parts throughout.
In. Figure 1 which is a longitudinal section of my improved pen A is the body
or reservoir of the pen and B is the feed bar before roferred to as fitting under the
nib of the pen and into the end portion C.
Figure 2 is a cross section through Figure 1 taken on line -'.
Figure 3 is an enlarged side elevation of the feed bar B in which D is the flat
portion shown more clearly by Figure 4 which is a section taken through line K, M,
of Figure 3:
By means of my improvements a very cheap and effectual caligraphic pen is
manufactured, the nib E being pressed into the slot prepared to receive it, and the
feed bar B helping to maintain the same in the desired position.
Dated this 26th day of August 1891.
RAYNER & CASSELL,
37, Chancery Lane, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Fountain Pens.
I CHARLES WOODBURY ROBINSON of 16 Holborn London Gentleman 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:-
My improvements relate to the class of fountain pens known as nib fountain pens
and relates more particularly to the feed bar in the same, which conducts the ink
to the nib of the pen. I am aware that feed bars of varying design and con-
struction havo been used in connection with these nib pens but the essential feature
of my feed bar is that it is first made circular in section for the whole of its
straight portion and then I make two longitudinal segmental cuts for a given
distance upon the sides of this straight portion. When the feed bar is placed in a
circular tube there is a space formed between the said tube or case and the
portions of the feed bar cut away and these spaces become passages or conduits
for the ink or air, and thus a free passage is made from the ink reservoir to the
writing nib.
I am aware that feed bars have been used in nib fountain pens but they have
been provided with a groove or channel along their entire length.

page_text: I am also aware that feed bars have been used quite solid and round in section,
in which case the tube or holder has been grooved to allow the passage of the ink.
I do not broadly claim a feed bar of the.outline shewn in my drawings but a novel
formation of the section of the same for a given distance of its length..
In order to more fully explain my invention I have illustrated the same in four
figures upon the accompanying sheet of drawings. inarked as far as possible with
like letters of reference to like parts throughout.
In Figure 1 which is a longitudinal section of my improved nib fountain pen A is
the body or reservoir of the pen, and B is the feed bar before referred to as fitting
under the nib of the pen and into the end portion C. It will be noticed that the
segmentally cut away portion of the feed bar extends well into the ink reservoir.
Fig. 2.is a cross section through Figure 1 taken on line x—x.
Figure 3 is an enlarged side elevation of the feed bar B in which D is the flat
portion shewn more clearly by Figure 4 which is a section taken through
line K, M, of Figure 3.
By means of my improvements a very cheap and effectual nib fountain pen is
manufactured, the nib E being pressed into the slot prepared to receive it, and the
feed bar B helps to maintain the same in the desired position.
Although the accompanying drawings shew the aforementioned segmental cuts
upon opposite sides of the feed bar, this is not strictly essential as they may be
either parallel to each other or at any required angle the one to the other.
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. I
claim is:-
In fountain pens of the kind known as nib fountain pens. an improved feed bar
having segmental portions cut away upon the sides thereof for a given distance all
as hereinbefore described in this Specification and illustrated by the accompanying
drawings.
Dated this 16th day of November 1891
RAYNER & CASSELL,
37, Chancery Lane, W.C., Agents for the 'Applicant.