IMPROVEMENTS IN THE DOORS OR COVERS OF SAFES, STRONG-ROOMS, AND OTHER RECEPTACLES OF PROPERTY AND PARTS SURROUNDING SUCH DOORS OR COVERS.
Year: 1866

page_text: LETTERS PATENT to Joseph Jessop, of Bradford, in the County of York,
Machine Maker, and William Warburton, of the same Place, Pawn-
broker, for the Invention of "IMPROVEMENTS IN THE DOORS OR COVERS OF
SAFES, STRONG-ROOMS, AND OTHER RECEPTACLES OF PROPERTY AND PARTS
SURROUNDING SUCH DOORS OR COVERS.'
Sealed the 7th September 1866, and dated the 13th March 1866.
PROVISIONAL SPECIFICATION left by the said Joseph Jessop and
William Warburton at the Office of the Commissioners of Patents,
with their Petition, on the 18th March 1866.
We, JOSEPH JESSOP, of Bradford, in the County of York, Machine Maker,
and WILLIAM WARBURTON, of the same Place, Pawnbroker, do hereby declaro
the nature of the said Invention for "IMPROVEMENTS IN THE DOORS OR COVERS
OP SAPES, STRONG-ROOMS, AND OTHER RECEPTACLES OF PROPERTY AND PARTS
SURROUNDING SUCH DOORS OR COVERS," to be as follows:-
The object of the improvements is to prevent or render difficult the intro-
duction of wedges, chisels, or other such means for the forcible opening of
the doors or covers of safes, strong-rooms, and other receptacles of property.
For this purpose in place of the edge or that surface of such door or cover
which closes into or upon the frame thereof being formed straight or of a
series of straight lines simply fitting close one into or upon the other, as is
the usual manner, wo form such edge around the door or cover, and the

page_text: surrounding frame thereof with a series of short corrugations, serrations, or
teeth, those of the door or cover fitting closely into those of the surrounding
frame.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Joseph Jessop and William Warburton in the Great Seal
Patent Office on the 13th September 1866.
"
..
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOSEPH
JESSOP, of Bradford, in the County of York, Machine Maker, and
WILLIAM WARBURTON, of the same Place, Pawnbroker, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirteenth day of March, in the year of our Lord
One thousand eight hundred and sixty-six, in the twenty-ninth year of Her
reign, did, for Herself; Her heirs and successors, give and grant unto us,
the said Joseph Jessop and William Warburton, Her special licence that we,
the said Joseph Jessop and William Warburton, our executors, administrators,
and assigns, or such others as we, the said Joseph Jessop and William
Warburton, our 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 "In-
PROVEMENTS IN THE DOORS, OR COVERS OF SAPES, STRONG-ROOMS, AND OTHER
RECEPTACLES OF PROPERTY AND PARTS SURROUNDING SUCH DOORS OR COVERS," upon
the condition (amongst others) that we, the said Joseph Jessop and William
Warburton, our executors or administrators, by an instrument in writing
under our, or their, or one of their hands and seals, or under the band and
seal of one of us or them, 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 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 Joseph Jessop and William Warburton,
do hereby declare the nature of the said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained in and
by the following statement thereof, that is to say:-
The object of the improvements is to prevent or render difficult the
introduction of wedges, chisels, or other such means for the forcible opening
of the doors or covers of safes, strong rooms, and other receptacles of

page_text: property. For this purpose in place of the edge or that surface of such door
or cover which closes into or upon the frame thereof being formed straight
or of a series of straight lines simply fitting close one into or upon the other,
as is the usual manner, we form the edge around the door or cover, and the
surrounding frame thereof, with a series of short corrugations, serrations, or teeth,
those of the door or cover fitting closely into those of the surrounding frame..
But that the Invention may be better understood, we will, by the aid of the
accompanying Drawing, proceed to describe means which we adopt in carrying