IMPROVEMENTS IN STYLOGRAPHIC PENS
Year: 1885

page_text: I, OTTO BUSSLER, Jeweller, of Nürnberg, in the kingdom of Bavaria, do hereby
declare the nature of said invention for IMPROVEMENTS IN STYLOGRAPHIC PENS,
to be as follows:-
This invention relates to copying ink pencils or stylographic fountain pens.
In describing the invention reference will be made to the accompanying drawing
figs. I to III.
The improvement chiefly consists in a device for protecting the point and in the
arrangement for adjusting the pencil for use.
Hitherto the device for protecting the point 8 and the ink reservoir t connected
with the same, merely consisted in a sleeve adapted to be pushed over the point,
which arrangement is not sufficient to protect the point s against impurities.
The copying pencil embodying this invention is provided with an automatic
perfectly acting device for protecting and at the same time holding the point.
The invention consists in the application of a divided clamp k adapted to close
completely, in combination with the point s of the ink reservoir provided with a
recess (or a swelling or projection), for the combined purpose of protecting the
point when not used, and holding the same when used.
The apparatus is constructed as follows: t is the ink reservoir moving freely in
the interior and completely independent from the surrounding sleeves.
The reservoir contains a pencil passing through its whole length and provided
with a piston and spring for the automatic feed of the ink.
g is the india rubber disc serving to close the upper end of the ink reservoir
when the pen is not in use; when used, the pencil is pushed back, the india-rubber
disc is lifted and admits air whereby the ink is discharged at the lower end in the
usual manner.
The ink reservoir t is surrounded by a tuber with the divided elastic mouth
piece of the clamp k.
The clamp k may be closed by the ends of the tube which moves up and down
along the tube r, and opened (spread) by the wedge shaped teeth e mounted near
the lower end of the tube h.
When closed, this clamp completely covers the point s; this operation is effected
automatically by the spring f, which constantly tends to draw the tuber with
clamp k into the tube h.

page_text: For using the copying pencil, the point is held downward, and the tuber is
pushed down into the tube h. By holding the point downward, the movable ink
reservoir t falls downward; by the pressure on the tube r the clamp k is pushed
out, and disengaged from the ends of the tube h and opened by the teeth e, so that
the ink reservoir t can freely advance (until it reaches a suitably situated stop) so
as to protrude from the clamp k. The point 8 is provided with recesses i (collars
or projections etc.) in which the clamp engages when the pressure at the upper
end (on tube and spring f) ceases, whereby the copying pencil is arrested and
held fast.

page_text: I, OTTO BUSSLER, Jeweller, of Nürnberg, in the kingdom of Bavaria, 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:-
This invention relates to copying pencils or stylographic fountain pens.
In describing the invention reference will be made to the drawing filed with the
provisional specification Figs. I to III, of which Figs. I and II are longitudinal
sections of a pen embodying my invention, while Fig. III represents a detail.
The improvement chiefly consists in a device for protecting the point and in the
arrangement for adjusting the pencil for use.
Hitherto the device for protecting the points and the ink reservoir t, connected
with the same, merely consisted in a sleeve adapted to be pushed over the point,
which arrangement is not sufficient to protect the point s against impurities.
The copying pencil embodying this invention is provided with an automatic
device for protecting and at the same time holding the point.
The invention consists in the application of a clamp k divided into two parts
and adapted to close completely, in combination with the points of the ink-
reservoir, provided with a recess (or a swelling or projection) for the combined
purpose of protecting the point when not used and holding the same, when used.
The apparatus is constructed as follows:
t is the ink reservoir moving freely in the interior and completely independent
from the surrounding sleeves.
The reservoir contains a pencil passing through its whole length and provided
with a piston and spring for the automatic feed of the ink.
g is the india rubber disc serving to close the upper end of the ink reservoir,.
when the pen is not in use; when used, the pencil is pushed back, the india rubber
dise is lifted and admits air, whereby the ink is discharged at the lower end in the
usual manner.
The ink reservoir t is surrounded by a tube r with the divided elastic mouth
piece of the clamp k.
The clamp split into two halves may be closed by the ends of the tube h,
which moves up and down along the tube r, and opened (spread) by the two
wedge shaped teeth e, mounted near the lower end of the tube h.
When closed, this clamp completely covers the point s; this operation is effected
automatically by the spring f, which constantly tends to draw the tuber with
clamp k into the tube h.
For using the copying pencil, the point is held downward, and the tuhe ris
pushed down into the tube h. By holding the point downward, the movable ink
reservoir t falls downward; by the pressure of the tube r, the clamp k is pushed
downward, out of the tube h and opened by the teeth e, so that the ink reservoir t
can freely advance (until it reaches a suitably situated stop) so as to protrude from
the clamp k. The point 8 is provided with recesses i or a lateral detent, (collars or

page_text: projections etc.) in which the clamp k engages, when the pressure at the upper
end (on tuber and spring f) ceases, whereby the copying pencil is arrested and
held fast.
In Fig. II the tube his not cut through its axis, so that the plane of section
passes outside the narrow slit at the lower end of the tube h.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I claim is
The combination of a movable ink reservoir having recesses i or a lateral detent
with an expansible clamp k, adapted to either close together in front of the point
of the reservoir or to engage with the recesses i or detent of the same, for the
purpose of holding the reservoir in position, when in use and protecting the point
when not in use, substantially as described.