Process of Manufacturing Celluloid Pens.
Year: 1895

page_text: Date of Application, 18th Mar., 1895-Accepted, 4th May, 1895
Process of Manufacturing Celluloid Pens.
I, AUGUST STIEGLER, of 56* Tauentzien Strasse City of Breslau, Province of
Silesia, in the Empire of Germany, Teacher, do hereby declare the nature of my
said invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :—
This invention relates to a process of manufacturing celluloid pens, and its
object is to provide a pen which, while possessing all the qualities of the steel
and quill pens at present in use, is at the same time cheaper, more durable and not
affected by the ink, like steel pens.
In order that my invention may be thoroughly understood I will now describe
same with reference to the accompanying drawing, in which:
Figs. 1 and 2 are plan views of pens provided with longitudinal and cross groove
respectively.
•
Fig. 3 is a section on line A B of Fig. 1.
Figs. 4 & 5 are longitudinal sections on line CD and E F of Figs. 1 and 2
respectively.
C
The pen which is made entirely of celluloid consists of the two checks c and
nib b and is provided with a longitudinal groove a or cross-groove d. The nib b,
which is split in the usual manner is conically ground on its upper side, in order
that the pen may form a fine point which, however, does not yield too much, in
spite of the great flexibility of the material. This conical form of the nib which
thus tapers towards the point of the pen, keeps the points of the nib always
together, because they become considerably stronger from the point towards the
shank and are thus rendered very strong and, at the same time elastic; such is
not the case with metal pens which are of the same strength or thickness in all
parts of the nib.
The longitudinal groove a, as made in certain kinds of pens at present in use,
adds to the strength especially of soft pens with long nibs and renders same much
harder; whereas with other kinds of pens, for instance, those having short nibs, the
cross grooved fulfils the same purpose. In order to render the pens still stronger
and harder if required, the sides c may be bent or curved inwards somewhat; they
thus, at the same time, serve more or less as conductors for the ink.
The process of manufacturing the pens above described is as follows: The
blank is first stamped out of a strip of celluloid which is conically ground at one
end and on the upper side only; this blank is then placed into a suitable mould
or matrix and pressed by a hollow die filled with water or sand and heated by
means of a suitable flame; the resulting pen is thus ready for use.
:-
The most important advantages of this celluloid pen are the following
Firstly, it does not oxidize like metal pens which rapidly corrode and are thus
very soon rendered useless; secondly, it does not become so readily soft and spongy
by the action of the ink, as is the case with quill-pens, and thirdly, it is considerably
cheaper than both metal and quill pens.
Moreover, the so-called writer's cramp, whether due to the irregular, jerky
movement of the pen on the paper, or to the action of the metal touched by the
inger, is brought about by steel pens; such cramp is prevented by celluloid pens,
which glide smoothly over the paper.
It will be evident that the pen is not restricted to the shapes shown by way of
xample in the drawing; the shape may be altered to meet the purpose required.
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page_text: Having now particularly described and ascertained the nature of my inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. A process of manufacturing celluloid pens, consisting in first stamping the
blank from a strip of celluloid which is conically ground at one end and on the
upper side, placing such blank in a matrix and pressing same therein with a hollow
heated die filled with water, sand or other materials, substantially as described and
shown in the drawing.
2. As a new article of manufacture, celluloid pens of the form and made
substantially as described and shown in the drawing.
Dated this 18th day of March 1895.
E. P. ALEXANDER & SON,
Chartered Patent Agents,
19, Southampton Buildings, Chancery Lane, London, W.C., Agents.