Improvements in or relating to Pencil Cases.
Year: 1889

page_text: Date of Application, 23rd Dec., 1889
Complete Specification Left, 23rd Sept., 1890-Accepted, 1st Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in or relating to Pencil Cases.
I, THEODOR PERLS, of Wurzburg, in the Empire of Germany, Engineer, do hereby
declare the nature of this invention to be as follows:-
My invention relates to pencils in which a cylinder of black lead or other marking
material is contained in a case, its inner end being held by a holder which can be
propelled in either direction in the usual way by means of a screw which when the
pencil case is turned round moves the lead in or out but without turning it round
upon its axis. It has for its object a novel method of construction by which the point
of the lead can be sharpened when it becomes worn, and by which a brush and
damping device are included in the case, so that postage or other stamps can be readily
damped when required to be used.
The inner end of the lead is held as already described in a spring clip which fits
in a tube and can be forced in or out of the latter by the usual well known
mechanism, and I make a hollow metal cap or cover which fits over and is screwed
upon the tube in which the lead and its holder move.
The outer end of the cap is conical the conical part projecting beyond the tube.
It is preferably of steel and formed of a sufficient number, preferably four, of
longitudinal strips extending for a sufficient distance down from the point the strips
being bent sufficiently in to form the conical point, through which the point of the
pencil protrudes and is held when forced forward. The edges of the strips are
sharpened to a fine edge, and may be preferably curved slightly in in cross section.
Narrow slots extend for some distance down the cap from the bottom of the spaces
between the strips, to give sufficient elasticity to the latter.
If the cap described be unscrewed and removed, and the lead with its holder be
then propelled forward in the tube in which they work so that the lead protrudes
sufficiently then by placing the loose cap upon the projecting lead and turning it
backward and forward with sufficient pressure, the sharp edges of the steel strips cut
away the lead and quickly bring it to a conical point.
The lead is then withdrawn into the case, and the cap having been again screwed
on to the end of the tube, the lead can be again propelled forward until its point
projects sufficiently far through the conical end of the cap to be conveniently used.
The entire apparatus described may be moved in and out of an outer projecting
case by a sliding ring in the usual way.
At the other end of the pencil case I make a hollow cap or cover, closed at its outer
end which can be screwed or fitted over the end of the pencil case.
Inside this cap I fit a piece of sponge or other absorbent material saturated with
water, and to the end of the pencil case I fix a small brush which when the cap is
in its place is in contact with the moistened material so that it is kept damp, and
when the cap is removed can be used to moisten stamps.
By my invention the point of the lead contained in the pencil can be quickly and
easily brought to a sufficiently sharp point, without the use of any separate
instrument.
02 1 1
1000

page_text: COMPLETE SPECIFICATION.
Improvements in or relating to Pencil Cases.
I, THEODOR PERLS, of Wurzburg, in the Empire of Germany, Engineer, 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 and
accompanying drawing, that is to say:―
My present invention relates to pencils in which a cylinder of black lead or other
marking material is contained in a case, its inner end being held by a holder which
can be propelled in either direction in the usual way by means of a screw which,
when the pencil case is turned round, moves the lead in or out but without turning
it round upon its axis. It has for its object a novel method of construction by which
the point of the lead can be sharpened when it becomes worn or blunted, and by
which, if desired, a brush or damping device are included in the case, so that
postage or other stamps can be readily damped when required to be used.
The accompanying drawing is in illustration of my invention, Figure 1 being a
side view of a pencil case, Figure 2 the same with the sharpening device attached,
and Figure 3 a separate view of the sharpening device.
The inner end of the lead a is held, as already described, in a spring clip which
fits in a tube b and can be forced in or out of the latter by the usual well-known
mechanism. The improved sharpening device consists of a hollow metal cap or
cover c, which fits over, and may be screwed upon, the tube b in which the lead a
and its holder move, (as illustrated in Figure 2).
The outer end of the cap c is conical, the conical part projecting beyond the tube
as shewn. It is preferably formed of steel, and consists of a sufficient number-
preferably four of longitudinal strips extending for a sufficient distance down from
the point, the strips being bent in sufficiently to form the conical point. The steel
strips, near their points, are sharpened to a sufficiently fine edge, and may preferably
curved slightly in cross section. Narrow slots d extend for some distance down the
cap from the bottom of the spaces between the strips, to give sufficient elasticity to
the latter.
.
If the lead with its holder be propelled forward in the tube b in which they work,
so that the lead protrudes sufficiently, then by placing the loose cap c upon the pro-
jecting lead and turning it backward and forward with sufficient pressure, the
properly shaped sharp edges of the steel strips cut away the lead and quickly bring
it to a conical point. The cutting cap c is then removed and the lead a can be
adjusted in its proper position and used in the usual way.
The end e of the cap c may be screwed inside, so that when not in use the cap may
be fitted and screwed upon the tube b, the lead a being forced outward when required
until it expands the conical ends of the cutter, and projects beyond the latter
sufficiently to be used. When it is required to sharpen the lead a, the cutting cap c
is unscrewed and used in the way already described, and is then replaced.
Or, instead of being screwed upon the tube b when not in use, the cutting cap may
be kept in a recess at the other end of the pencil case at f, shewn in Figure 2. Its
screwed end may be inserted into the recess and screwed upon a projecting pin at the
bottom of the recess, so that it cannot be lost. f is a cap of the usual kind to close
the recess.
The lead a may be moved in and out of an outer protecting case by a sliding ring 9,
in the usual way.
The hollow cap or cover f, which is closed at its outer end, can be screwed or fitted
over the end of the pencil case, and inside this cap I sometimes fit a piece of sponge
or other absorbent material saturated with water, and to the end of the pencil case
(instead of a recess for the cutting device c as just described,) I sometimes fix a small
brush which when the cap is in its place is in contact with the moistened material so
that it is kept damp, and when the cap is removed can be used to moisten stamps.
By my invention the point of the lead contained in the pencil can be quickly, and
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page_text: easily brought to a sufficiently sharp point, without the use of any separate
instrument.
I do not confine myself to the precise details and proportions of the several parts,
which may be varied as desired, but
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 :-
1. The cutting device c, consisting of a sufficient number of radial elastic cutters,
of such shape as to bring the end of the lead a to a point, by turning the cutter round
upon it, substantially as described and shewn.
2. The combination, with a pencil case, of the moveable cutting device c, screwed
upon the pencil case when not in use, substantially as and for the purpose described.
3. The combination, with a pencil case, of the moveable cutting device c and the
recess in the outer end of the pencil case to hold the cutting device, substantially as
described and shewn.
4. In combination with a pencil case, the moveable cap or cover containing absor-
bent damped material, and a brush fixed to the pencil case, substantially as and for
the purpose described.
1 1900
EDWARDS & Co.,
35, Southampton Buildings, Chancery Lane, London, Agents for the Applicant.