Improvements in the Method of securing Pencil Cases in their Sheaths.
Year: 1898

page_text: Improvements in the Method of securing Pencil Cases in their
Sheaths.
We, FREDERIC MANTLE, Director of the Firm of Arthur Downing, Limited, and
ARTHUR DOWNING, LIMITED, of 29, Spencer Street, Birmingham, Manufacturers, do
hereby declare the nature of our said invention to be as follows:-
Our invention has for its object improvements in the method of securing pencil
cases in their sheaths by which we are enabled to securely hold the pencil in its sheath
without the risk of it becoming detached.
In carrying our invention into practice we form an enlargement or globular portion
near that end of the pencil case in which the lead is inserted and in the interior at
the bottom of the sheath we fit a sleeve the mouth of which is split and formed bell
shape. We then fit into the bell shaped mouth of the sleeve a split conical ferrule
the inner diameter of which is slightly smaller than the enlargement or globular
portion near the end of the pencil so that when the pencil is pushed into the sheath
this enlargement or globular portion forces this split ferrule slightly open until the
globular portion has passed into the interior of the ferrule thereby holding the pencil
and preventing it from dropping out of its sheath. To withdraw the pencil from
the sheath it is given a firm pull by which means the enlargement or globular
portion will force open the split conical ferrule thus releasing the pencil from the
sheath.

page_text: is to be performed, to be particularly described and ascertained in and by the
following statement: -
Our invention has for its object improvements in the method of securing pencil
cases in their sheathes by which we are enabled to securely hold the pencil in its
sheath without the risk of it becoming detached.
In carrying our invention into practice we form an enlargement or globular portion
near that end of the pencil case in which the lead is inserted and in the interior at
the bottom of the sheath we fit a sleeve the mouth of which is split and formed bell
shape. We then fit into the bell shaped, mouth of the sleeve a split conical ferrule the
inner diameter of which is slightly smaller than the enlargement or globular portion
near the end of the pencil so that when the pencil is pushed into the sheath this
enlargement or globular portion forces this split ferrule slightly open until the
globular portion has passed into the interior of the ferrule thereby holding the pencil
and preventing it from dropping out of its sheath.
To withdraw the pencil from the sheath it is given a firm pull by which means the
enlargement or globular portion will force open the split conical ferrule thus releasing
the pencil from the sheath.
In order that our invention may be clearly understood and more easily carried
into practical effect we have appended 'hereunto a double sized sheet of drawings
upon which we have illustrated an example of our improvements as applied to a
telescopic pencil case but it inust be understood that our improvements may be
applied to other pencil cases.
Figure 1 is a view of a telescopic pencil case fitted into its sheath.
Figure 2 is a view of the pencil case extended or in position ready for being
finally withdrawn from its sheath.
Figure 3 is a view of the pencil case withdrawn from its sheath.
Figure 4 is a sectional view of the sheath showing the pencil case fitted
therein.
Figure is a detached view of the split sleeve which is fitted in the interior
of the sheath for holding the pencil case in position.
Figure 6 is a sectional view of Figure 5.
Figure 7 is a similar view to Figure 6 showing a slight modification.
In carrying our invention into practice we form near the end a¹ of the pencil case A
the enlargement or globular part a² as clearly shewn at Figures 3 and 4. We then
fix into the interior of the sheath B the split sleeve D or its equivalent either by
soldering or otherwise. This sleeve D is formed with the bell shaped or expanded
mouth d¹ and into the mouth of this sleeve we fix the split conical ferrule the
inner diameter of which is slightly smaller than the diameter of the enlargement or
globular part a² on the end of the pencil as clearly shewn at Figure 6. Or instead
of fixing a ferrule in the mouth of the sleeve D we may form the shoulder d³ in the
interior of the mouth as clearly shewn at Figures 4 and 7. When the pencil case is
put into the sheath and the point pushed into the mouth of the sleeve the enlarge-
ment or globular part a² forces the mouth of the split sleeve slightly open until the
globular part has passed into the interior of the sleeve and as this globular portion
now rests upon the inner edge of the ferrule d² or upon the shoulder d³ the pencil
case is held firmly in position and prevented from dropping out of its sheath which
so frequently happens with pencil cases fitted into sheathes as at present constructed.
The collar d' either formed on or attached to the upper end of the sleeve D is pro-
vided for the purpose of soldering or otherwise fixing the sleeve in the interior of the
sheath B so as to leave sufficient space between the sleeve and the interior of the
sheath for the mouth of the sleeve to expand. If the outer surface of the sheath is
When
enamelled we prefer to fit the lining E in the interior as shewn at Figure 4.
withdrawing the pencil case from the sheath the case is extended as shewn at Figure 2
and then by giving it a firm, pull the enlargement or globular part a² expands or forces
open the mouth of the sleeve thereby releasing the pencil case:
It must be understood that our method of holding or securing pencil cases in their

page_text: sheathes can be applied to other pencil cases instead of télescopic, the sheath being
made sufficiently long to enclose the pencil case.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:-
CLAIMS.
First The improvements in the method of securing pencil cases in their sheathes
consisting essentially in forming an enlargement or globular part such as a² near the
point of the pencil case which when the pencil case is inserted in its sheath fits into
the mouth of a sleeve such as D in the manner substantially as herein set forth and
as shewn upon the accompanying sheet of drawings.
Second: Securing pencil cases into their sheathes by fitting into the sheath a
split sleeve such as D having an expanded or bell shaped mouth d¹ and either fitted
with a ferrule such as d² or having a shoulder 3 upon which an enlarged or globular
part such as a formed near the end of the pencil case rests when fixed in position in
the manner and for the purpose substantially as herein set forth and as shewn upon
the drawings.
Third: In pencil cases forming an enlargement or globular part such as a² near
the point for the purpose substantially as herein set forth and as shewn upon the
accompanying sheet of drawings.
Fourth-In pencil case sheathes a split sleeve such as D or its equivalent having
a bell shaped or expanded mouth and either fitted with a split ferrule such as d² or
provided with a shoulder d³ in the manner and for the purpose substantially as herein
set forth and as shewn upon the accompanying sheet of drawings.
T
1030
FREDERICK MANTLE and
ARTHUR DOWNING, LTD.
By George Barker,
Fellow of the Chartered Institute of Patent Agents,
Agent for Applicants, 77, Colmore Row, Birmingham.