IMPROVEMENTS IN THE CONSTRUCTION OF VENTILATORS FOR HOT-HOUSES, CONSERVATORIES, AND OTHER SUCH BUILDINGS
Year: 1860

page_text: caster, Landscape Gardener, for the Invention of "IMPROVEMENTS IN THE
CONSTRUCTION OF VENTILATORS FOR HOT-HOUSES, CONSERVATORIES, AND OTHER
SUCH BUILDINGS."
Sealed the 17th July 1860, and dated the 20th January 1860.
PROVISIONAL SPECIFICATION left by the said John Shaw at the Office
of the Commissioners of Patents, with his Petition, on the 20th January
1860.
I, JOHN SHAW, of Manchester, in the County of Lancaster, Landscape
Gardener, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN THE CONSTRUCTION OF VENTILATORS FOR HOT-HOUSES, CONSERVATORIES, AND
OTHER SUCH BUILDINGS," to be as follows:-
My Invention consists firstly, in a method of constructing those ventilators
which are generally situate within brickwork at the front or sides of the hot-
house or other such building, and at the lower part thereof.
According to the usual method adopted, these ventilators are formed as
ordinary wooden shutters; according to my Invention I construct them within
framework and with glass, so as to afford a general appearance uniform with
the usually glazed parts, and I adapt apparatus for simultaneously opening
a number of them. Also I use glass in like manner for those ventilators
which are at the top and back of the building when erected as a lean-to.
Another part of my
my improvements consists in a method of constructing or

page_text: arranging ventilators for span-roof houses. In such erections I form an
opening on either side at the ridge, and within adapt a shutter acting after
the manner of a throttle or other valve. This shutter when horizontal for
instance closes the apertures, but when turned upon its centre allows a pas-
sage for air on either side, and this shutter I also form with glass.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Shaw in the Great Seal Patent Office on the 20th July
1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
SHAW, of Manchester, in the County of Lancaster, Landscape Gardener, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twentieth day of January, in the year of our Lord
One thousand eight hundred and sixty, in the twenty-third year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
John Shaw, Her special license that I, the said John Shaw, my executors,
administrators, and assigns, or such others as I, the said John Shaw, 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
THE CONSTRUCTION OF VENTILATORS FOR HOT-HOUSES, CONSERVATORIES, AND OTHER
SUCH BUILDINGS," upon the condition, amongst others, that I, the said John
Shaw, by an instrument in writing under my hand and seal, should par-
ticularly 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 imme-
diately after the date of the said Letters Patent.
.
NOW KNOW YE, that I, the said John Shaw, 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 (and accompanying Drawing,) that is to say :—
My Invention consists firstly, in a method of constructing those ventilators
which are generally placed within brickwork at the front or sides of the hot-
house or other such erection, and at the lower part thereof.

page_text: According to the method usually adopted, these ventilators are formed as
ordinary wooden shutters; according to my Invention I construct them within
framework and with glass, so as to afford a general appearance uniform with
the usually glazed parts, and I adapt apparatus for simultaneously opening or
closing a number of them. Also I use glass in like manner for those venti-
lators, which are at the top and back of the building when erected as a
" lean-to."
Another part of my improvements consists in a method of constructing or
arranging ventilators for span-roof houses. In such erections I form an
opening on either side at the ridge, and within adapt apparatus acting after
the manner of a throttle valve, so that by being turned the admission of air
is regulated.
In order to point out more fully these particulars of my Invention, I will
now refer to the Sheet of Drawings accompanying this my Specification.
Fig. 1 represents a front elevation of a house constructed according to my
Invention; and Fig. 2 is a transverse section thereof. The ventilators at the
lower part are at a, made of framework and glazed so as to present an appear-
ance in keeping with the other portions of the building. These ventilators
may be mounted upon studs so as to turn upon centres at their middle, or
they may be hinged like ordinary shutters, and in either case may be capable
of being opened and shut independently of each other, or the centres upon
which they turn may be connected together so as to render them capable of
being moved simultaneously at any convenient situation. Fig. 3, represents a
"lean-to" in section. The front ventilators are as before at a, those at the
top and back are shewn at 6 constructed in a similar manner of framework
and glass, and these also may be opened and closed separately or in any desired
number.
The next part of my Invention is shewn at Fig. 2 before referred to. At
the top of the house is an opening within which is a shutter or shutters c,
mounted so as to be capable of turning upon a centre at d; if therefore it be
brought by such turning out of the horizontal position, a circulation of air will
take place in the direction of the arrows. The throttle valve c as it may be called,
may be in one length for the whole house, or in as many portions as may be
desired, and constructed so as to be turned separately or simultaneously. The
part c is glazed, and above the opening which it occupies are glazed parts e
for keeping out rain. A modification of this part of my Invention is shewn
at Fig. 4. In this instance, the ventilator is a tube or tubes f, f* with
openings g. According to the position shewn air is passing out according to
the arrows, but if the tube or tubes be turned so as to bring the part f* to

page_text: the position now occupied by the part f, the opening formed on either side of
the ridge will be closed.
Having thus described and ascertained the nature of my said Invention and
the manner of carrying the same into effect, I desire it to be understood tliat
I claim as secured to me under the above in part recited Letters Patent,
Firstly, constructing such ventilators as are shewn at a of glazed frame-
work.
Secondly, constructing in the like manner such ventilators as are shewn
at b.
Thirdly, in reference to span roofs, constructing them with an opening or
openings extending on each side of the ridge, and adapting thereto a ventilator
or ventilators acting as a valve.
In witness whereof, I, the said John Shaw, bave hereunto set my hand.
and seal, this Nineteenth day of July, in the year of our Lord One
thousand eight hundred and sixty..
JOHN SHAW. (L.S.)