Year: 1885

page_text: I, OTTO BUSSLER of Nürnberg in the Empire of Germany, Manufacturer, 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 invention relates to improvements in pencil lead cases and holders and
consists in the first place in the employment of a tong pressing on every side which
is inserted through the stationary pencil lead receiving hole, in the interior of the
sliding gripping tube.
In the second place in the employment of a double tong, one end of which is
received by a conical part of the sliding gripping tube, and the other end by the
conical part of the stationary pencil-lead receiving tube.
In the third place in the employment of angular cut out gripping jaws in front
of the double tong.
And in order that my invention may be better understood I have caused to be
appended hereunto one sheet of drawings, corresponding letters indicating like
parts throughout the various figures.
Figs. 1 and 2 are longitudinal sections of a complete pencil lead case and holder
showing the tong of the pencil lead holder closed and open respectively.
Figs. 3 and 4, are an enlarged longitudinal section and plan respectively of the
front portion of the pencil lead case & holder shown in Fig. 1.
Fig. 5 represents also an enlarged longitudinal section of the front portion of the
pencil lead case and holder but fitted with a single tong and ball bearing.
In carrying out my invention I connect the inner pencil lead receiving tube a
with the outer case h securely by means of a pin 8. Between the tube a and case h,
the gripping tube b is made adjustable by means of the slots n, and is actuated
by the spring f, which latter has always a tendency to push back the gripping
tube b.
On the stationary pencil lead receiving tube a, a double tong 21, see Figs. 1 and 3,
is resting, which grips the pencil lead, or it may be a simple tong z, see Fig. 5 which
on one end is received by the conical part of the pencil lead receiving tube a, or by
the ball bearing see Fig. 5, and on the other end pressed into the interior of the
conical portion of the sliding gripping tube b, by means of the spring f. The use
of a double tong, see Figs. 1 & 3, has the advantage of the pencil lead being gripped

page_text: in two places by the two points o and o¹ of the tong z¹ see Fig. 3. The pivots v
and v³ are cut out, angular in form (Fig. 4) in order that the pencil lead is gripped
prong-like at several points, as for instance in this case, in 2 × 6 12 points, and
thereby ensure an absolutely secure hold under any conditions.
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The front part of the gripping tube 6 is arranged to be screwed off in order that
the tong z may be readily inserted.
By depressing the head k of the gripping tube b, the same gets pushed forwards
(see Fig. 2), and the tongue a set free, and the pencil lead d may be drawn in or
out as desired.
If the pressure is taken off, the spring f draws the gripping tube b backwards,
and the inner conical part of the same presses the gripping jaws c, c, towards the
centre, gripping tightly the pencil lead placed between them, or on two sides,
according to the employment of a single or double tong.
Having now 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
1st In pencil lead cases & holders the employment of a tong pressing on every
side, which is inserted through the stationary pencil lead receiving tube, in the
interior of the sliding gripping tube for the purpose of gripping the pencil lead d,
& releasing the same as set forth.
2nd In the arrangement named before the employment of a double tong g¹ one
end of which is received by a conical part of the sliding gripping tube and the
other end by the conical part of the stationary pencil-lead receiving tube for the
purpose of giving a double grip to the pencil lead d as set forth.
3rd In the arrangement named in claim 1, the employment of a tong having at
its ends, angular cut gripping jaws c. c for the purpose of gripping tightly the
pencil lead d, placed between them as set forth.
Dated this 17th day of December AD 100%