Improvements in Point Protectors for Pencils and Crayons.
Year: 1893

page_text: Date of Application, 13th Feb., 1893
Complete Specification Left, 13th Nov., 1893-Accepted, 16th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in Point Protectors for Pencils and Crayons.
We, CHARLES HAY TRAISE BIKKER, Junior, of 53 Charlotte Road,
Edgbaston, Birmingham, Warwickshire, Engineer, and JOSEPH JOHNSON, trading
as Johnson Brothers, of 7, 8 and 9 George Street, Parade, Birmingham, aforesaid,
Pen Manufacturer and Wholesale Stationer, do hereby declare the nature of this
invention to be as follows:-
This invention consists of the hereindescribed improvements in point protectors
for pencils and crayons.
A point protector constructed according to this invention is an open ended
tubular metal sheath adapted to fit on to the pencil or crayon and to cover the
pointed end of the same. This sheath is or may be somewhat taper or pointed at
that end which covers the pencil point or crayon point. When the pencil or crayon
is required to be used the sheath is pushed or otherwise moved up or along the
pencil or crayon for a short distance so that the pencil point or crayon point
projects through the smaller open end of the sheath ready for use. To. protect the
point the sheath has merely to be moved along the pencil or crayon in the opposite
direction far enough to hide the point within the sheath.
The said sheath may either be made to slide along the pencil or crayon or the
sheath may be made with an indented screw thread so as to screw to or fro on the
pencil or crayon. The said sheath may fit and be adapted to slide or screw upon a
cylindrical socket which socket is adapted to fit upon the pencil or crayon. In
this case when the sheath is being moved either to expose or hide the pencil point
or crayon point the socket remains stationary upon the pencil or crayon and the
sheath moves to or fro upon the socket, suitable stops prevent the sheath from being
moved too far in either direction. The socket, or the sheath when made without
the socket, may be roughened inside so as the better to fit on the pencil or crayon
and for the same purpose the socket and the sheath or one of them may be split or
divided longitudinally to suit various sizes of pencils or crayons.
The great advantage of the point protector above described is that it does not
have to be removed from the pencil or crayon when the same is required to
be used.
Dated this 10th day of February 1893.
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Point Protectors for Pencils and Crayons.
We, CHARLES HAY TRAISE BIKKER, Junior, of 53, Charlotte Road,
Edgbaston, and JOSEPH JOHNSON, trading as Johnson Brothers, of
and 9 George Street, Parade, Birmingham, aforesaid, Pen Manufacturer
and Wholesale Stationer, do hereby deciare 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 :-
7,
This invention consists of the herein described improvements in point protectors
for pencils and crayons which we will describe by referring to the accompanying
drawing on which
Figs. 1 and 2 illustrate one form of point protector constructed according to this
invention Fig. 1 shewing the point protector when moved up the pencil or crayon

page_text: pose the pore ready for and Fig. 4 snewing the point protector moved
forward to protect the point.
Figs. 3, 4 and 5 illustrate another form of point protector constructed according
to this invention Fig. 3 shewing the point exposed ready for use and Fig. 4
shewing the point protector moved forward to protect the point, Fig. 5 being one of
the parts of the same.
Figs. 6 and 7 illustrate a further modification of this invention and Fig. 8 shews
a further modification of the same.
The same letters of reference indicate the same or corresponding parts in all the
figures of drawing.
One form of pencil or crayon point protector constructed according to this
invention consists of an open ended tubular metal sheath A (see Figs. 1 and 2)
adapted to fit on to the pencil or crayon B and made with an indented screw
thread a' so as to screw to and fro on the pencil or crayon. This sheath A is
somewhat taper or reduced in diameter at that end a³ which covers the pencil' point
or crayon point so as to prevent the sheath being moved too far up the pencil or
crayon. When the pencil or crayon B is required to be used the sheath A is
screwed up along the pencil or crayon for a short distance that is as far as the
reduced end a³ will allow so that the pencil point or crayon point projects through
the smaller open end a³ of the sheath A ready for use as shewn in Fig. 1. To
protect the point the sheath A has merely to be screwed along the pencil or crayon
in the opposite direction far enough to hide the point within the sheath A as shewn
in Fig. 2. At the end a of the indented screw thread a' we prefer to make a
small hole a in the sheath so that the sharp end of the screw thread a' thus formed
will cut its way into the pencil or crayon when the sheath is screwed up to expose
the point.
.
Instead of fitting directly on to the pencil or crayon as above described with
reference to Figs. 1 and 2 the sheath A may as shewn in Figs. 3, 4, 6 and 8 be
arranged to fit upon and be adapted to screw (Figs. 3, 4 and 5) or to slide (Figs. 6, 7
and 8) upon the cylindrical socket C which socket C fits upon the pencil or
crayon B and is reduced at its front end ce see Fig. 5 so as to prevent the socket C
being moved too far up the pencil or crayon. In this arrangement of this
invention when the sheath A is being moved either to expose (Figs. 3, 6 and 8) or
to hide (Fig. 4) the pencil point or crayon point the socket C remains stationary
upon the pencil or crayon B and the sheath A moves to and fro upon the socket Č
which latter when the sheath A is made with the indented screw thread a' has a
similarly indented screw thread c' for the screw thread a¹ of the sheath to fit into.
The milled rib around the sheath A is for convenience of turning the sheath and
the smaller milled rib is for the purpose of turning the socket C to screw or
slide it in either direction along the pencil or crayon B. Suitable stops prevent
the sheath A being moved too far along the socket C in either direction, for
instance in the example of our invention shewn by Figs. 3, 4 and 5 the milled
ring forms the stop to prevent the sheath A being moved too far up the socket C
and the end of the screw thread c¹ forms the stop to prevent the sheath A being moved
too far in the opposite direction. In the example of our invention shewn by
Figs. 6 and 7 where the sheath A is not made to screw upon the socket C but is
made to slide to and fro thereon the stops are formed by the small projection cat
the end of the tongue e formed on the socket C which engages with the hole as in.
the sheath A when the sheath is moved up to expose the pencil point and engages
with the hole a in the sheath A to prevent the sheath A being moved too far
forward over the point of the pencil or crayon.
In the arrangement of our invention shewn by. Fig. 8 the stop to prevent the
sheath A being moved too far in either direction is formed by the little projecting
peg c on the socket C taking into the bayonet slot a' in the sheath A so that after
the sheath A has been moved as far as the slot a' will allow in either direction a
partial turn of the sheath A causes the small peg to engage in one or other end
of the slot a and thus maintain the sheath A in position.

page_text: The socket C, or sheath A when made without the socket, may if desired be
roughened inside so as the better to fit on the pencil or crayon and for the same
purposes the socket C and the sheath A or one of them may be split or divided
longitudinally to suit various sizes of pencils or crayons.
The great advantage of the point protector above described is that it does not
have to be removed from the pencil or crayon when the same is required to
be used.
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 :-
1. The improved open ended tubular point protector for pencils or crayons made
with an indented screw thread to screw on to the pencil or crayon in combination
with the open end a reduced in diameter to prevent the point protector being
screwed too far up the pencil or crayon, substantially as herein before described and
illustrated by Figs. 1 and 2 of the accompanying drawing.
2. The combination in a point protector for pencils or crayons, of an open ended
tubular socket adapted to fit upon the pencil or crayon and an open ended tubular
metal sheath fitting on the socket and capable of being moved to and fro thereon to
cover or expose the point of the pencil or crayon, the said socket and sheath being
constructed and combined together in any of the several ways substantially as
hereinbefore described with reference to Figs. 3, 4, 5, 6, 7 and 8 of the accompanying
drawings.
3. The combination in a point protector for pencils or crayons of the socket C
and sheath A constructed and combined together in any of the several ways
hereinbefore described and illustrated by Figs. 3, 4, 5, 6, 7 and 8 of the
accompanying drawing and for the purposes set forth.
Dated this 11th day of November 1893.
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.