IMPROVEMENTS IN FASTENINGS FOR WINDOWS AND CASEMENTS, AND FOR OTHER SIMILAR PURPOSES
Year: 1857

page_text: LETTERS PATENT to William Parsons, of No. 25, Clifton Street, Brighton,
in the County of Sussex, Carpenter and Joiner, for the Invention of
"IMPROVEMENTS IN FASTENINGS FOR WINDOWS AND CASEMENTS, AND FOR
OTHER SIMILAR PURPOSES."
Sealed the 23rd December 1857, and dated the 30th June 1857.
PROVISIONAL SPECIFICATION left by the said William Parsons at the
Office of the Commissioners of Patents, with his Petition, on the 30th
June 1857.
I, WILLIAM PARSONS, of No. 25, Clifton Street, Brighton, in the County of
Sussex, Carpenter and Joiner, do hereby declare the nature of the said Inven-
tion for "IMPROVEMENTS FOR FASTENINGS FOR WINDOWS AND CASEMENTS, AND FOR
OTHER SIMILAR PURPOSES," to be as follows:-
A new and peculiar mode of adapting a guard as a security against the
fastening being opened from without, as shewn in Drawing marked No. 1, 2,
and 3. And also for an improved arrangement in the lever arm and catch, as
shewn in Drawing No. 4, 5, and 6.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Parsons in the Great Seal Patent Office on the
29th December 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
PARSONS, of No. 25, Clifton Street, Brighton, in the County of Sussex,
Carpenter and Joiner, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirtieth day of June, in the year of our Lord One
thousand eight hundred and fifty-seven, in the twenty-first year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
William Parsons, Her special licence that I, the said William Parsons, my
executors, administrators, and assigns, or such others as I, the said William
Parsons, 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 "IMPROVEMENTS IN FASTENINGS FOR
WINDOWS AND CASEMENTS, AND FOR OTHER SIMILAR PURPOSES," upon the condition
(amongst others) that I, the said William Parsons, my executors or adminis-
trators, 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 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 William Parsons, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
On the face of plate of my improved fastener for windows and casements,
and other similar purposes, I place a metal guard, colored red in Figures 1
and 2 of plan, about the centre of which is a hole to admit of a screw,
colored blue in said Figures 1 and 2 of said plan, which secures the guard
to face plate. At the back of the guard I affix an ordinary spring, colored
black in said Figures 1 and 2 of plan, which pressing upon one end of the
guard forces in the other. When the guard is acted upon by the lever
arm it is forced across the joint or opening to be, thereby preventing the
introduction of any instrument to force back the lever. arm. At the end of
the lever arm, near the pin on which it rotates, 1 form a projection or

page_text: eccentric, colored green in Figure 2 of plan, the said projection or eccentric
being proportioned to the distance the guard is required to move. The lever
arm is cut at an angle from the lower sido to fit the catch or tongue, as shewn
in Figures 4, 5, and 6 of plan, and therein colored yellow.
What I claim to be new in the said fastener for windows and casements is
the metal guard, and the method or plan of the projection or eccentric on
lever arm, by which it is acted upon and forced across the joint or opening to
be protected, and the combination of the several parts.
In witness whereof, I, the said William Parsons, have hereunto set my
hand and seal, this Twenty-eighth day of December, in the year of our
Lord One thousand eight hundred and fifty-seven.
WILLIAM PARSONS. (L.S.)