Improvements in or appertaining to Lead or other Pencils, Orayons, Pens and the like Writing Instruments.
Year: 1899

page_text: Date of Application, 10th Jan., 1899
Complete Specification Left, 7th Oct., 1899-Accepted, 18th Nov., 1899
Improvements in or appertaining to Lead or other Pencils, Orayons,
Pens and the like Writing Instruments.
I, CHARLES HENRY WILKINSON, of Barlbro' Place, Milnsbridge, near Hudders-
field, in the County of York, Colourist, do hereby declare the nature of this
invention to be as follows:
My invention relates to improvements in or appertaining to lead and other
pencils, crayons, pens and the like writing instruments, and the objects of my
improvements are to render the leads to some extent self sharpening and to
obtain greater resiliency whereby a hard or grating effect is obviated and writing
facilitated.
The chief feature of my improvements consists in wholly or partially encasing
the lead or other writing material in or surrounding it with a suitable substance
preferably india rubber which will at once form a protection for the same and
also serve as a body round which the holder or the paper, wood or other covering
can grip.
For a pencil holder or the like I prefer to mould or otherwise form the writing
material in the form of a double cone and apply a rubber or other band around
the middle of the double cone. This band forms at once a protection for the
cone and also a body upon which the holder can grip and when the band is
made of india rubber considerable resilience or flexibility is thereby obtained.
The lead or other writing material being conical is to a great extent self sharpen-
ing and when one end of the double cone is used up the other conc can be brought
into use by merely taking out the double cone and reversing its position in the
holder.
The cone holder is made with jaws of suitable form to grip and hold the middle
of the double cone and with a hollow shaft if desired to contain a reserve of
cones.
In carrying out my invention as applied to the ordinary pencils covered say
with wood or paper, I cover the whole length of the lead, which is preferably
considerably thinner than usual with very thin indiarubber or other suitable
flexible material which may be in the form of a narrow strip and I wind this
strip spirally round the lead and then by dippnig the rubber in a suitable solu-
tion the edges of it will be joined together or I make the rubber in the form
of a tube and then slit the tube from one end to the other and insert the lead
within its folds; when lead so treated is embedded in a wood or paper covering,
the pencil is sharpened in the ordinary manner the rubber being a protection in
the lead whilst the covering is being cut away; the rubber which is then exposed
on the lead is torn off. When the lead or its equivalent is applied in a plastic
condition 1 prefer to employ a small rubber tube preferably drawn over a piece
of wire and lay this tube in the covering before the covering is completed, the
wire is drawn out after the covering is finished and the paste can then be forced
into the tube as is now done in the manufacture of some pencils or I take the
two halves of the barrel of the pencil and in the grooved part of each half where
the pencil is to be held I lay a bed of rubber so that when the two halves aro
connected together a rubber tube is formed in which the lead is fixed or forced.

page_text: In pencil cases for loose leads I prefer to wind a strip of thin rubber round
the lead or insert it in a tube as described, so that thinner leads can be used.
The effect in each of the cases named of having a rubber covering between
the lead and its holder it to give a certain amount of resiliency to the pencil
or the like and also to prevent the writing material from getting broken so
easily, also when the lead is fractured inside the barrel or case the broken part
will not drop out as at present is often the case, but will be held in position
by the rubber covering thus enabling it to be used up. I am also enabled
to use a lead much smaller than is usually employed for each special require-
ment and of a guage small enough to dispense with sharpening, the ordinary
using of the pencil providing the necessary point for. writing.
In order to impart resilience or flexibility to the ordinary writing pen I
envelope the broad end of the pen nib wholly or partially in rubber or other
flexible material and then insert this covered end in the receptacle or penholder.
Or where the metal of the broad end of the pen nib is made in say a cylindrical
form I envelope the end of the pen holder wholly or partially with rubber or other
flexible material and then slip the cylindrical end of the pen on to the covered
end of the penholder.
Dated 01 I. T1000
H. B. BARLOW & GILLETT,
Agents for Applicant.
Improvements in or appertaining to Lead or other Pencils, Crayons,
Pens and the like Writing Instruments.
I, CHARLES HENRY WILKINSON, of Barlbro' Place, Milnsbridge, near Hudders-
field, in the County of York, Colourist, do hereby declare the nature or 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 or appertaining to lead and other
pencils crayons, pens, and the like writing instruments, and the objects of my
improvements are to render the leads or crayons to some extent self-sharpening
and to obtain greater resiliency whereby a hard and grating effect is obviated
and writing facilitated. The chief feature of my improvements consists in wholly
or partially encasing the lead or other writing material in, or surrounding it
with, a suitable substance or material, preferably indiarubber, which will at once
form a protection for the same and also serve as a body round which the holder
or the paper, wood, or other covering, can grip. For a pencil holder or the like
I prefer to mould or otherwise form the writing material in the form of a double
cone, that is with two pointed ends, and apply a rubber or other yielding or
flexible band around the middle of the double cone. This band forms a pro-
tection for the cone and also a body upon which the holder can grip, and when
the band is made of indiarubber considerable resiliency or flexibility is thereby
obtained. The cone holder is made with jaws of suitable form to grip and hold
the middle of the cone and with a hollow shaft, if desired, to contain a reserve
of cones.
In carrying out my invention as applied to the ordinary pencils covered, say,
with wood or paper, I cover the whole length of the lead, which is preferably
considerably thinner than usual, with very thin indiarubber or other suitable
flexible material which may be in the form of a thread or of a narrow strip,
and I wind this thread or strip spirally round the lead and then by dipping

page_text: the rubber in a suitable solution, the ends of it will be joined together; or I
make the rubber in the form of a tube and then slit it from end to end and insert
the lead within its folds. When lead, crayon, or chalk, so treated is embedded
in a wood or paper covering, the pencil is sharpened in the ordinary manner,
the rubber being a protection to the lead whilst the covering is being cut away
and the rubber which is thus exposed is then torn off. When the lead or its
equivalent is applied in a plastic condition 1 prefer to employ a small rubber
tube preferably drawn over a piece of wire and lay this tube in the covering
before such covering is completed. The wire is drawn out after the covering
is finished and the paste can then be forced into the tube, as is now done in
the manufacture of some pencils. Or I take the two halves of the barrel of the
pencil and in the grooved part of cach half where the lead is to be held I lay
a bed of rubber so that when the two halves are connected together a rubber
tube is formed in which the lead is fixed or forced.
In order to impart resiliency or flexibility to the ordinary writing pen I
envelop the broad end of the pen nib wholly or partially in rubber or other
flexible material and then insert this covered end in the receptacle or pen holder.
Or when the metal of the broad end of the pen nib is made in, say, a cylindrical
form or fits in a metal cylinder, I envelop the end of same or of the pen holder
wholly or partially in rubber or other flexible material and then slip the cylin-
drical end of the pen into or on to the end of the pen holder.
In the accompanying drawings forming a part of this specification:—
Fig. 1 is elevation of a pencil holder specially adapted for my improved double
cone leads, crayons, and other like writing or marking material with flexible
casings or coverings, shewing the double cone pencil applied and the holder
adjusted for writing;
Fig. 2 is elevation of said pencil holder shewing the gripping jaws extended
to release and allow of the removal or introduction of the double-coned writing
material;
Fig. 3 is sectional elevation on a large scale of my improved double cone lead
pencil or other writing or marking material with flexible covering or body
applied;
Fig is longitudinal section of portion of an ordinary wood or paper covered
pencil, crayon or chalk, made according to my invention; and
Figs. 5, 6, and 7, shew the application of my improvements to pens or like
writing instruments.
Referring firstly to Figs. 1, 2, and 3, letter a represents the lead, crayon, or
other writing or marking material which is moulded or mechanically pointed
or otherwise made in the form of a double cone or pointed at each end, as shewn,
with sufficient base or length between the two conical or pointed ends to hold a
tube, band, or covering composed preferably of indiarubber, or it may be of
any other suitable flexible material or substance drawn over or wound round
the middle of the double cone n. This hand b forms at once a protection for the
cone and also a body upon which the holder can grip, and when made of india
rubber or like yielding substance or material considerable resiliency or flexibility
is obtained when used in writing, the pressure on the pencil being cushioned or
absorbed by the flexible band and avoiding the hardness or rigidity which is
felt when the writing material presses or bears direct against a hard metal or
like holder. The lead or other filling of writing material being conical is to a
great extent self-sharpening and when one end of the double cone is used up
the other cone can be brought into use by merely taking out the double cone
and reversing its position in the holder.
Although the before described double cone with flexible covering 6 round its
middle can be employed in conjunction with any form of holder having jaws or
receivers to grip the same, I have designed a special holder which is well suited
to the purpose. This holder comprises a body portion or shaft a which may be
hollow at c to receive and contain a reserve of cones, and a telescoping split

page_text: tube d located at one end of the shaft c and provided with suitable jaws d¹ at
its extremity to grip the middle portion of the double cone. The tube dis
secured to a collar e surrounding the end of the barrel or shaft e and adapted
to slide laterally on same within the limits of a slot or slots f to force the tube d
outward, as in Fig. 2, to release the jaws, or to withdraw it into the end of the
body or shaft c, as in Fig. 1, to bend the said jaws tightly against the flexible
covering on the double cone a.
A shield or protector g, shewn in dotted line in Fig. 1, is provided to protect
the point of the writing material when not in use.
In applying any invention to pencils, crayons, or the like writing or marking
material covered, say, with wood or paper, I cover the whole length of the lead a
(see Fig. 4) which is preferably thinner than usual, with very thin indiarubber
or other suitable flexible material 6 which may be in the form of thread or of
a narrow strip, and I wind this thread or strip spirally round the lead a and
then, by dipping the rubber in a suitable solution the ges of it are joined
together; or I make the rubber in the form of a tube ·
from one end to the other and insert the lead within its
two halves of the barrel c of the pencil and in the grooved
where the lead is to be held, I lay a bed of rubber or the
the two said halves are connected together a rubber tube is formed in which the
lead is fixed or forced.
then slit the tube
s; or I take the
part of each half
like so that when
When lead so treated is embedded in a wood or paper covering, the pencil is
sharpened in the ordinary manner, the rubber being a protection to the lead
while the covering is being cut away, and the rubber which is then exposed on
the lead is afterwards torn off. When the lead or its equivalent is applied in
a plastic condition, I prefer to employ a small rubber tube, perably drawn over
a piece of wire, and lay this tube in the covering before the itter is completed.
After the covering is finished the wire is drawn out and the paste can then be
forced into the tube as is now done in the manufacture of some pencils.
In pencil cases for loose lead or fillings of the ordinary description I prefer to
wind a thread or strip of thin rubber or other suitable flexible si bstance or material
round the lead or insert it in a tube of rubber or the like, as described, so that
in addition to the flexibility of the pencil in use, thinner leads can be used.
The effect in each of the cases named of having a rubber or flexible covering
between the lead and its holder is to give a certain amount of resiliency or play
to the pencil or the like and also to prevent the writing material from getting
broken so easily. Further, when the lead is fractured inside the barrel or case
the breken part will not drop out as at present is often the case, but will be held
in position by the rubber covering and thus allowed to be used up. I am also
enabled to use a icad much smaller than is usually employed for each special
requirement and of a guage small enough to dispense with sharpening, the
ordinary using of the pencil providing the necessary point for sharpening
writing.
In order in like manner to impart resiliency or flexibility to the ordinary
writing pen, I cuvelop the broad end of the pen nib wholly or partially in rubber
or other flexible material as shewn at in Fig. 5, and then insert this covered
end in the receptacle or pen holder. Or where the metal of the broad end of the
pen nib is made in, say, a cylindrical form, or fits into a detachable metal
cylinder, I envelop the end of the said cylinder or holder in rubber or other
flexible material as shewn at b in Fig. 6; or the rubber or other flexible material
may envelop the end of the shaft or wooden holder e as shewn at in Fig. 7
and the cylindrical end of the pen or detachable metal cylinder in which it fits
is then slipped on to the covered end of the pen holder.
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:-
(1) In lead or other nenoily cravone hana and the like writing insturments

page_text: the encasing or surrounding of the lead or other writing material or parts holding
same, or the writing instrument, either wholly or partially with a suitable
flexible or yielding substance or material preferably indiarubber substantially
as herein set forth and for the purposes described.
(2) For use in pencil holders adapted to grip or seize upon and hold the
writing material, a short piece or filling of lead, crayon, or the like writing or
marking material moulded or otherwise formed in the shape of a double cone
or with both ends pointed or sharpened and having around its middle a tube,
band, or covering of indiarubber or other suitable yielding or flexible substance
or material substantially as herein shewn and described and for the purposes
set forth.
(3) The combination of the double cone of lead, crayon, or like writing or
marking material a, rubber or other flexible or yielding band or covering h
pencil holder or shaft c, and telescopic tube provided with jaws d¹ adapted
to receive the dable cone a and when drawn into the body e to be engaged by
the end of the pening in same and forced tightly against and firmly grip the
flexible cover gb substantially as set forth.
TASKER & CROSSLEY,
Patent Agents, Halifax, Agents for Applicant.
TASKER & CROSSLEY,
Patent Agents, Halifax, Agents for Applicant.