IMPROVEMENTS IN VENTILATING HOUSES AND OTHER PLACES
Year: 1858

page_text: LETTERS PATENT to John Wainwright, of Birkenhead, in the County
of Chester, Dental Surgeon, for the Invention of "IMPROVEMENTS IN
VENTILATING HOUSES AND OTHER PLACES."
Sealed the 19th April 1859, and dated the 20th October 1858.
PROVISIONAL SPECIFICATION left by the said John Wainwright at the
Office of the Commissioners of Patents, with his Petition, on the
20th October 1858.
I, JOHN WAINWRIGHT, of Birkenhead, in the County of Chester, Dental
Surgeon, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN VENTILATING HOUSES AND OTHER PLACES," to be as follows:-
My Invention consists in ventilating houses, cabins of ships, and other
places by forming a number of holes in the sash frames (by preference the
lower and upper) and placing over these holes zinc or other metallic plates as
screens to prevent direct draughts into the apartment. Or, instead of per-
forating the sash frames I sometimes employ neat perforated boxes or cases
inserted in the window, or the door, or other suitable place as may be required,
and cover these with or combine with these metallic screens or plates as before
described.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Wainwright in the Great Seal Patent Office on the
20th April 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
WAINWRIGHT, of Birkenhead, in the County of Chester, Dental Surgeon, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twentieth day of October, in the year of our
Lord One thousand eight hundred and fifty-eight, in the twenty-second year
of Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said John Wainwright, Her special licence that I, the said John
Wainwright, my executors, administrators, and assigns, or such others as
I, the said John Wainwright, 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 VENTILATING HOUSES AND OTHER PLACES," upon the
condition (amongst others) that I, the said John Wainwright, 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 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 John Wainwright, 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 thereof, reference being had to the Drawings hereunto annexed,
that is to say :-
My Invention consists in ventilating houses, cabins of ships, and other
places by forming a number of holes in the sash frames (by preference the
lower and upper) and placing over these holes zinc or other metallic plates as
screens to prevent direct draughts into the apartment. Or, instead of per-
ferating the sash frames, I sometimes employ neat perforated boxes or cases
inserted in the window or the door or other suitable place, as may be required,
and cover these with or combine with these metallic screens or plates as before
described.

page_text: Figure 1 of the accompanying Drawings is an outside view of a window
sash with my Invention applied thereto; Figure 2 is a section through the
line a, b, of the same; c, c, are a series of holes formed in the upper and
lower sashes, and communicating with the apartment; these holes are made
by preference at an angle of about 45° or 50°, and lined with metal to prevent
the weather acting on the wood; d, d, is a screen of thin metal fitted to the
inside of the window sash in order to diminish the draught. In some cases
I cover the holes c, c, with a fine wire gauze. Where much ventilation is
required I also perforate the lower part of the upper sash and fit a screen on
the inside as before; the perforations can be made at the side of the window
as well as at the top and bottom.
Figure 3 is an outside view, and Figure 4 is a section of a door with my
Invention applied to it. The same arrangement is preserved as that already
described.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I claim, ventilating houses
and other places by the means and in manner herein-before described.
In witness whereof, I, the said John Wainwright, have hereunto set my
hand and seal, this Nineteenth day of April, One thousand eight
hundred and fifty-nine.
Signed, sealed, and delivered in the
presence of
J. CRAVEN,
Estate Agent,
Birkenhead.
JOHN WAINWRIGHT. (L.S.)