AN IMPROVED METHOD OF PREVENTING DRAWING BOARDS AND OTHER FLAT WOODEN SURFACES FROM WARPING OR PROVISIONAL SPECIFICATION
Year: 1859

page_text: LETTERS PATENT to Frederick Henry Elliott and Charles Alfred Elliott,
of the Strand, in the City of Westminster, Mathematical Instrument
Makers, for the Invention of "AN IMPROVED METHOD OF PREVENTING
DRAWING BOARDS AND OTHER FLAT WOODEN SURFACES FROM WARPING OR
PROVISIONAL SPECIFICATION left by the said Frederick Henry Elliott
and Charles Alfred Elliott at the Office of the Commissioners of
Patents, with their Petition, on the Sth December 1859.
We, FREDERICK HENRY ELLIOTT and CHARLES ALFRED ELLIOTT, of the
Strand, in the City of Westminster, Mathematical Instrument Makers, do
hereby declare the nature of the said Invention for "AN IMPROVED METHOD OF
PREVENTING DRAWING BOARDS AND OTHER FLAT WOODEN SURFACES FROM WARPING
OR TWISTING, AND OF ADDING TO THE STRENGTH THEREOF," to be as follows:-
Our Invention consists in laying into a groove formed at each end of a
drawing or other like board or panel a bar or strip of steel or iron (preferring
for the purpose hardened steel), and that at right angles, or nearly so, to
the direction of the grain of the wood. For circular boards, tables, and
panels, we let in a ring of steel or iron near the edge thereof. In most cases
we cover the metal with a veneer of the same wood as that of which the
particular article is formed.

page_text: SPECIFICATION in pursuance of the conditions of the Letters l'atent, filed
by the said Frederick Henry Elliott and Charles Alfred Elliott in the
Great Seal Patent Office on the 8th June 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, FREDERICK
HENRY ELLIOTT and CHARLES ALFRED ELLIOTT, of the Strand, in the City
of Westminster, Mathematical Instrument Makers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eighth day of December, in the year of our
Lord One thousand eight hundred and fifty-nine, in the twenty-third year
of Her reign, did, for Herself, Her heirs and successors, give and grant unto
us, the said Frederick Henry Elliott and Charles Alfred Elliott, Her special
licence that we, the said Frederick Henry Elliott and Charles Alfred Elliott,
our executors, administrators, and assigns, or such others as we, the said
Frederick Henry Elliott and Charles Alfred Elliott, our executors, adminis-
trators, 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 "AN IMPROVED METHOD OF PREVENTING DRAWING BOARDS
AND OTHER FLAT WOODEN SURFACES FROM WARPING OR TWISTING, AND OF ADDING TO
THE STRENGTH THEREOF," upon the condition (amongst others) that we, the said
Frederick Henry Elliott and Charles Alfred Elliott, our executors or adminis-
trators, by an instrument in writing under our, or one of our 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 per-
formed, and cause the same to be filed 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 we, the said Frederick Henry Elliott and Charles
Alfred Elliott, do hereby declare the nature of our said Invention, and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement, reference being had to the
Drawings hereunto annexed, that is to say :-
Our Invention consists in laying into a groove formed at each end of a
drawing or other like board or panel, a bar or strip of steel or iron (preferring
for the purpose hardened steel), and that at right angles, or nearly so, to the
direction of the grain of the wood. For circular boards, tables, and panels,
we let in a ring of steel or iron near the edge thereof. In most cases we cover

page_text: the metal with a veneer of the same wood as that of which the particular
article is formed.
Figure 1 of the accompanying Drawings is a plan partly in section, and
Figure 2 an edge view of a drawing or other like board constructed according
to our Invention. a is the flat surface of the drawing or other board, the
ends b, b, of which have each a groove cut in them; c, c, are bars or strips of
hardened steel or other metal inserted in the grooves; d, d, are strips or
filling pieces of wood for covering the metal and giving a finished appearance
to the board.
Figure 3 is a plan, partly in section, of a circular board or table top, having
a steel or other metal ring let in near the edge thereof. e is the steel or other
metal ring inserted in a channel formed near the edge of the board or table.
A veneer of the same material as that of which the table top or board is made
is laid over the metal, and lies flush with the surface of the said table top or
hoard. Although not shown in the Drawing, other flat wooden surfaces can
be prevented from warping or twisting in a similar manner.
And having now described the nature of our said Invention, and in what
manner the same is to be performed, we declare that we claim, the preventing
of drawing boards and other flat wooden surfaces from warping or twisting,
and adding to the strength thereof, in the manner herein-before described
and illustrated in the accompanying Drawings.
In witness whereof, we, the said Frederick Henry Elliott and Charles
Alfred Elliott, have hereunto set our hands and seals, this Eighth
day of June, One thousand eight hundred and sixty.
LEN
CHARLES ALFRED ELLIOTT.
(L.B.)
(L.S.)