AN IMPROVED VENTILATING APPARATUS
Year: 1875

page_text: LETTERS PATENT to Samuel Coste, of Water Lane, in the City of
London, Merchant, for the Invention of "AN IMPROVED VENTILATING
APPARATUS."
Scaled the 11th January 1876, and dated the 15th July 1875.
PROVISIONAL SPECIFICATION left by the said Samuel Coste at the
Office of the Commissioners of Patents, with his Petition, on the
15th July 1875.
I, SAMUEL COSTE, of Water Lane, in the City of London, Merchant,
do hereby declare the nature of the said Invention for "AN IMPROVED
VENTILATING APPARATUS," to be as follows:-
My said Invention relates to a simple and inexpensive apparatus or
device for ventilating in a convenient manner the rooms of dwelling
houses and other rooms or places where it is desirable to obtain a con-
tinuous supply of pure or fresh air without exposing the inmates of the
room to draughts, and the consequent discomfort and other ill effects.
.

page_text: The said Invention may be applied to the window or door or other
convenient part of the room or apartment to be ventilated without
removing, disturbing, or altering the same. It will not interfere with
the opening and closing of the window or door to which it is affixed or
necessitate any unsightly or inconvenient addition to the same, and may
be applied and put in operation in any room in the course of a few
minutes without opening the window or door, and may be regulated to
admit more or less air as may be required.
My improved apparatus is constructed as follows I form a tube of
brass, copper, zinc, or other suitable metal or material, preferably of an
clbow shape, and of any suitable diameter or bore, the said pipe being
provided with means-for-securing or holding it in place, and with a cap
or cover, whereby it may be opened or closed at pleasure When in use
this pipe has one end passed through the window sash or door or other
part of the room to which it is to be applied in such a manner that
there is a free passage for the entrance of the external air through the
said pipe in an upward direction into the room.
In adapting the said Invention to a sash window I prefer to fix it in
the centre or horizontal bar of the upper sash of the window frame. In
this case the arm or part of the tube to be passed through the said bar
is provided with a screw socket. This arm or part of the elbow-shaped
tube is passed up vertically through the said sash bar with the other
arm outside and below the said bar and projecting outward from the
window, and the tube is made fast in this position by screwing down
the said socket upon the top of the bar. The said socket is provided
with a cover hinged or pivoted upon its upper end, or with a plug or
valve, or other suitable stopper, whereby the entrance of the air through
the said pipe into the room may be regulated. When the apparatus is
thus adjusted and the cover or valve is opened a continuous current of
fresh air will enter through the said tube, and rising to the upper part å
of the room will be gently and evenly distributed throughout its entire
arca, displacing the foul air and affording thorough ventilation, without
draughts or other inconvenience to the inmates of the room.
33
or
In applying the said apparatus to what are termed "French
"casement" windows, or to doors, or in other places where the hole for
its reception has to be made in a horizontal direction I dispence with
the aforesaid screw socket. One arm or part of the said elbow-shaped

page_text: tube is passed through the hole to communicate with the external
atmosphere, with the other arm in a vertical position inside the room;
and to secure or hold the said tube in this position I form on its vertical
portion a small pin or spur that may be forced into the window frame or
other part to which the said apparatus is applied. Or I may provide a
screw or spring catch or other suitable device for holding the said tube
in place. The vertical or inner portion of the tube is in this caso pro-
vided with a cover, stopper, or valve, which is opened or closed as desired
for the purpose above specified.
tube is passed through the hole to communicate with the external
atmosphere, with the other arm in a vertical position inside the room;
and to secure or hold the said tube in this position I form on its vertical
portion a small pin or spur that may be forced into the window frame or
other part to which the said apparatus is applied. Or I may provide a
screw or spring catch or other suitable device for holding the said tube
in place. The vertical or inner portion of the tube is in this caso pro-
vided with a cover, stopper, or valve, which is opened or closed as desired
for the purpose above specified.
It is obvious that I may vary the size and form of the said apparatus
to suit any circumstances under which it may have to be applied or
used.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Samuel Coste in the Great Scal Patent Office on
the 15th January 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
COSTE, of Water Lane, in the City of London, Merchant, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifteenth day of July, in the year
of our Lord One thousand eight hundred and seventy-five, in the thirty-
ninth year of Her reign, did for Herself, Her heirs and successors,
give and grant unto me, the said Samuel Coste, Her special licence
that I, the said Samuel Coste, my executors, administrators, and
assigns, or such others as I, the said Samuel Coste, my exccutors,
administrators, and assigns, should at any time agree with, and no
others, from ume 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 " AN IMPROVED
VENTILATING APPARATUS," upon the condition (amongst others) that I, the
said Samuel Coste, 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,

page_text: same to be filed in the Great Scal Patent Office within six calendar
months next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Samuel Coste, 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, reference being had to the accompanying Drawing
forming a part of this Specification :-
My said Invention relates to a simple and inexpensive apparatus or
device for ventilating in a convenient manner the rooms of dwelling
houses, and other rooms or places where it is desirable to obtain a con-
tinuous supply of pure or fresh air without exposing the inmates of the
room to draughts; and-the-consequent-discomfort and other ill effects.
The said Invention may be applied to the window or door or other
convenient part of the room or apartment to be ventilated without
removing, disturbing, or altering the same. It will not interfere with
the opening and closing of the window or door to which it is affixed, or
necessitate any unsightly or inconvenient additions to the same, and may
be applied and put in operation in any 100m in the course of a few
minutes When fixed it may be put into operation without opening the
window or dooi, and may be regulated to admit more or less air, as may
be required.
My improved apparatus is constructed as shown in the accompanying
Drawing, in which,―
Figure 1 is a plan or top view of the middle sash bar of a window
showing my apparatus fitted therein, Figure 2 is a transverse section
of the said sash bar with my apparatus mit, Figure 3 is a view taken
from inside the room shewing my apparatus in the said sash bar.
Figure 4 is a top view, and Figure 5 a transverse section of a sash bar
fitted with a modification of my Invention.
Like letters indicate the same parts throughout the Drawing.
The apparatus shewn in Figures 1, 2, 3, is an olbow picce of brass,
tin, iron, wood, earthenware, or other suitable material, with an oblong
transverse sectional form Its vertical arm a is fitted in a recess or
space cut in the side of the sash bar, the said elbow being so arranged
that its horizontal arm extends outward and has free communication

page_text: with the external atmosphere Any convenient means may be employed
for fixing the said elbow in the sashi bar In the Drawing I have shewn
lugs c at the sides of the same, which lugs may be secured by screws or
nails.
I provide the top of the ventilator with means for closing it when it
is desired to prevent the entrance of air through the same I may usc
a hinged lid or sliding plate, or two perforated or slotted plates, or any
other convenient device for this purpose, but I prefer to employ three
or more hinged flaps or covers d, as I can thereby partially close the
ventilator by shutting one or two of the said lids or covers, or entiroly
close it by shutting all of them But in all cases care must be taken
to so arrange these lids or covers that when the ventilator is either
partially or fully open they will not tend to divert the current of air
from a vertical direction.
In Figures 4 and 5 I have shown my Invention in the form of an
elbow-shaped tube or tubular elbow. This tubular elbow is applied to
the window by passing the end or arm a through a hole in the sash bar,
with its other arnıb extending outward, as shown in these Figures,
and communicating with the external atmosphere In this instance I
have shown the arm a provided with a screw socket or sleeve e, which
is fitted to a screw thread on the part a, and is screwed down upon the
top of the sash bar to secure the ventilator in the same. The upper end
of this socket is provided with a lid or cover e¹, which is swivelled at e²,
and is moved horizontally to open and close the aperture of the said
socket. Or I may provide the latter with a plug or valve or any other
suitable stopper, cover, or regulator, which when open, or partially open,
will not interfere with the upward current of air entering through the
ventilator.
In applying this Invention to a sash window I prefer to fix it in the
central horizontal bar of the upper sash, but it may if desired be placed
in any other convenient part of the window, care being taken in all cases
to see that it occupies the position above described, that is to say, it
must be so placed that its arm a must project vertically upward inside
the window, and its other arm must project horizontally outward
from the window in communication with the external atmosphere, so
that when the ventilator is open there will be a free passage for the air
through the ventilator, and so that it will enter the room or apartment

page_text: in a vertical direction. When the apparatus is thus adjusted and the
cover or valve is opened a continuous current of fresh air will enter
through the said tube, and rising to the upper part of the same will be
gently and evenly distributed throughout its entire area, displacing the
foul air and affording thorough ventilation, without draughts or other
inconvenience to the inmates of the room.
In applying the said apparatus to what are termed French or casement
windows, or to doors, or in other places where the hole for its reception
has to be made in a horizontal direction one arm or part of the said
elbow-shaped tube is passed through the hole to communicate with the
external atmosphere, and the other arm is in a vertical position inside
the room; and to-secure or-hold-the-said-elbow in this position I form
on its vertical portion a small pin or spur that may be forced into the
window frame or other part to which the said apparatus is applied. Or
I may provide a screw or spring catch or other suitable device for holding
the said elbow in place. The vertical or inner portion of the elbow is in
this case provided with a cover, stopper, or valve, which is open or closed
as desired for the nurnoso ahovo snacified.

page_text: Having thus fully described my said Invention and shown how the
same may be conveniently and advantageously carried into practice, I
wish it understood that I claim, a ventilator consisting of a small elbow
or elbow-shaped tube or pipe, so constructed that it can be readily
applied to the sash bar or other convenient part of a window, as above
set forth, and which when properly fixed therein and when open will
admit air freely, but only in a vertical direction, into the room or
apartment to be ventilated.
Having thus fully described my said Invention and shown how the
same may be conveniently and advantageously carried into practice, I
wish it understood that I claim, a ventilator consisting of a small elbow
or elbow-shaped tube or pipe, so constructed that it can be readily
applied to the sash bar or other convenient part of a window, as above
set forth, and which when properly fixed therein and when open will
admit air freely, but only in a vertical direction, into the room or
apartment to be ventilated.
In witness whereof I, the said Samuel Coste, have hereunto
set my hand and seal, this Fourteenth day of January, in the
year of our Lord One thousand eight hundred and seventy-
sie