IMPROVEMENTS. IN BARS OR GRATINGS FOR THE SECURITY OF BUILDINGS AND OTHER PROPERTY
Year: 1856

page_text: LETTERS PATENT to Charles Woide Goodhart, of Woodlands, in the
County of Middlesex, Gentleman, for the Invention of "IMPROVEMENTS.
IN BARS OR GRATINGS FOR THE SECURITY OF BUILDINGS AND OTHER PROPERTY."
Sealed the 16th December 1856, and dated the 1st July 1856.
PROVISIONAL SPECIFICATION left by the said Charles Woide Goodhart
at the Office of the Commissioners of Patents, with his Petition, on the
1st July 1856.
I, CHARLES WOIDE GOODHART, of Woodlands, in the County of Middlesex,
Gentleman, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN BARS OR GRATINGS FOR THE SECURITY OF BUILDINGS AND OTHER PROPERTY,"
to be as follows:--
My said Invention mainly consists in the substitution of hollow bars or
tubes instead of the solid bars usually employed in forming gratings for the
security of prisons, dwelling-houses, and other like purposes.
Each bar may be a separate tube, or a series of bars may be formed by
bending one long tube or pipe to the required form, or the ends of a series
of separate lengths of pipes may have their ends connected by other pipes set
at right angles thereto. The interior of the pipes or tubes may be charged
with ignitable and explosive compounds, or connected by enclosed-wires or
like means with bells or other alarums.
I do not limit myself to materials or form, or to any particular compositions
or alarums, the novelty of my said Invention consisting in the employment
of hollow bars, which when cut through shall by suitable means give notice
thereof.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Charles Woide Goodhart in the Great Seal Patent Office on
the 19th December 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, J, CHARLES
WOIDE GOODHART, of Woodlands, in the County of Middlesex, Gentleman,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the First day of July, in the year of our Lord One
thousand eight hundred and fifty-six, in the twentieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Charles Woide Goodhart, Her special licence that I, the said Charles Woide
Goodhart, my executors, administrators, and assigns, or such others as I, the
said Charles Woide Goodhart, 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 "IMPROVE-
MENTS IN BARS OR GRATINGS FOR THE SECURITY OF BUILDINGS AND OTHER PROPERTY,"
upon the condition (amongst others) that I, the said Charles Woide Goodhart,
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 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 I, the said Charles Woide Goodhart, 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:-
.
My said Invention mainly consists in the substitution of hollow bars or
tubes in place of the solid bars usually employed in forming gratings for the
security of prisons, dwelling-houses, banks, and other like purposes.
And for the better understanding of my said improvements, I will now
proceed to give the details thereof:-Each bar of a window grating or other
grating may consist of a separate tube; or a series of bars may be formed by
means of one long tube, bent zig-zag until a sufficient number of parallel bars
are thereby produced; or the ends of a series of separate lengths of pipes or
tubes may have their ends connected by other pipes or tubes set at right angles

page_text: thereto, the object being to obtain a continuous circuit from the top of the
extreme bar on one side to the bottom end of the last bar on the opposite side
when the same are intended to communicate with a vessel containing water,
air, or gaseous matter. But I purpose sometimes to inclose in the interior of
my improved tubular bars ignitable and explosive compounds, in sufficient
charges to create alarm when exploded by cutting or otherwise destroying
any single bar; and, therefore, for such purposes a continuous circuit through
all the bars is not then required; neither would it be necessary in case of
using onclosed wires, gutta percha, or other lines or cords connected with bells
and other suitable alarums. A single bar or tube thus provided may be used to
intercept a passage through places otherwise protected.
Having thus fully described the nature of my said Invention, and several
modes of carrying the same into practical operation, I would here observe that
I neither limit myself to any precise materials or forms, or to any particular
compositions or alarums, nor to every bar being hollow; but I do declare that
what I claim as my Invention is namely, the novel construction and application
of tubular bars or gratings, which when cut or ruptured shall by suitable
explosive or other alarums give notice thereof, as described.
In witness whereof, I, the said Charles Woide Goodhart, have hereunto
set my hand and seal, this Sixteenth day of December, in the year of
our Lord 1856.
C. W. GOODHART. (L.S.)