A NEW OR IMPROVED WRITING AND DRAWING SLATE
Year: 1872

page_text: LETTERS PATENT to George Bowden, of 314, Oxford Street, in the
County of Middlesex, for the Invention of "A NEW OR IMPROVED
WRITING AND DRAWING SLATE."
Sealed the 5th November 1872, and dated the 16th May 1872.
PROVISIONAL SPECIFICATION left by the said George Bowden at the
Office of the Commissioners of Patents, with his Petition, on the
16th May 1872.
I, GEORGE BOWDEN, of 314, Oxford Street, in the County of Middle-
sex, do hereby declare the nature of the said Invention for "A NEW
OR IMPROVED WRITING AND DRAWING SLATE," to be as follows:
-
This Invention consists of a drawing and writing slate, and the novelty
of construction consists in giving a double use to the school slate, viz.,
one side for writing and the other side for drawing, the frame being
constructed as herein-after mentioned can be used for straining drawing
paper.
The principal of construction is that of the wedge. The slate or
pannel is fixed in the frame by means of wedges which are mitred or

page_text: morticed in the said frame. These wedges are fixed in and form part of
the frame, having a movement only from right to left, the inner edges
of the frame and outside edges of the slate or pannel are made to an
angle of about 45 degrees, and are made to fit closely in one another.
The under sides of the wedges are also bevelled or angled off, and when
in use press inward and over the back of the slate or pannel. A groove
is made on the edge of the frame for the purpose of holding a pencil or
brush, and a piece of elastic is placed across the groove to keep the
pencil or brush from falling from out of the groove.
The frames of these drawing or writing slates can be made of any
material.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Bowden in the Great Seal Patent Office
on the 16th November 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
BOWDEN, of 314, Oxford Street, in the County of Middlesex, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixteenth day of May, in the year
of our Lord One thousand eight hundred and seventy-two, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said George Bowden, Her special licence that
I, the said George Bowden, my executors, administrators, and assigns, or
such others as I, the said George Bowden, my executors, administrators,
and assigns, should at any time agree with, and no others, from time
to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands, and
Isle of Man, an Invention for "A NEW OR IMPROVED WRITING AND DRAWING
SLATE," upon the condition (amongst others) that I, the said George
Bowden, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be filed

page_text: in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said George Bowden, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement :-
This Invention consists of a drawing and writing slate, and the novelty
of construction consists in giving a double use to the school slate, vide-
licet, one or both sides for writing when not required for drawing, and
when required for drawing the frame and panel are so constructed that
they can be used for straining drawing paper. To effect this the wedges
are withdrawn, and a sheet of paper is placed over one side of the slate,
and the wedges are then closed inwards.
The principle of construction is that of the wedge; and in order that
my said Invention may be properly understood reference is made to the
annexed Drawings, wherein similar letters of reference relate to the
same parts.
The slate or panel a, Fig. 1, is fixed in the frame b, b, b, b, by means
of wedges c, c, c, c, which are mitred or morticed in the said frame. In
the Drawing four wedges are shewn, but it is obvious that the number
can be increased or decreased according to the size of slate or other
material forming the panel.
Fig. 2 shows the frame without panel, and the wedges c, c, c, c, are
shewn withdrawn. These wedges c, c, c, c, work in a slot, and are fixed
in by a peg, and form part of the frame b, b, b, b, the wedges having a
movement only from right to left. The inner edges of the frame, and
outside edges of the slate or panel, are made to an angle of about
45 degrees, and are made to fit closely in one another, as shewn in Fig. 3,
which is a section of Fig. 1.
The inner sides of the wedges c, c, c, c, are also bevelled or angled
off, and when in use press inward and over the back of the slate or
panel a.
A groove d, d, can be made on the top edge of the frame b, b, b, b, if
preferred, or at the side, for the purpose of holding a pencil or brush, and
a piece of elastic e, e, is praced across the grooves to keep the pencil or
brush from falling out of the groove.

page_text: The frames of these drawing or writing slates can be made of any
material, and when used for drawing only the panel is made of slate,
wood, or other suitable material.
Having thus described the nature and object of my said Invention,
I declare that what I claim and desire to be secured to me by the t
herein-before in part recited Letters Patent is, the new or improved
writing and drawing slate and frame as herein-before described and
illustrated on the Drawing, or any mere modification thereof.
In witness whereof, I, the said George Bowden, have hereunto
set my hand and seal, this Sixteenth day of November, in the 1
year of our Lord One thousand eight hundred and seventy-two.