Improved Method of and Means for Ventilating Buildings, Rooms, and the like.
Year: 1896

page_text: Improved Method of and Means for Ventilating Buildings, Rooms,
and the like.
I, GEORGE CALDWELL STEPHEN of 54 Evelyn Gardens, South Kensington,
London, S.W., Physician, do hereby declare the nature of this invention to be as
follows:-
This invention relates to a new or improved method of and means for ventilating
buildings rooms and the like and has for object to admit a fully sufficient volume
or current of fresh air into the room or the like without creating a draught which
frequently is found troublesome and injurious to persons in delicate health and is
more or less unavoidable with the ventilating devices that have hitherto been in
general use.
In carrying my invention into practice I employ a ventilator frame, consisting
of a frame across the opening of which two screens of gauze or like material are
stretched at suitable distance from each other so as to permit the space between
them being filled with wool or suitable antiseptic material if required. The frame
itself is preferably made oblong in shape, corresponding in width with the sash of
the window but of lesser depth or thickness than the latter, and any convenient
height may be choosen.
For purposes hereinafter described a longitudinal flange of india rubber or other
suitable material is provided on the top bar of the ventilator frame while the lower
bar has one or more projections pins or lugs pointing downward and intended to
be placed into corresponding recesses or holes sunk into the bottom board of the
sash frame.
In placing the ventilator frame in position, I raise the window sash and intro-
duce the frame into the guide or groove, provided for the sash, by first inserting
one side of the frame and then turning the other inward, which is easily
practicable owing to the lesser thickness of the ventilator frame as compared with
the window sash. The ventilator is now lowered so as to firmly settle the projec-
tions or lugs before described into the recesses or holes provided for them in the
bottom board of the sash frame, the upper part of the frame is then secured in
position by means of suitably shaped wedges, introduced between the said frame
and the centre lath of the sash frame, and finally the window sash is pulled down
onto the ventilator frame, when the before mentioned india rubber flange on its
upper bar, secures an airtight closing between the ventilator and sash. For
removing the ventilator the process is reversed.
Dated thin 27th dow of October 1896

page_text: Improved Method of and Means for Ventilating Buildings, Rooms,
and the like.
I, GEORGE CALDWELL STEPHEN of 54 Evelyn Gardens, South Kensington,
London, S.W., Physician, do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described and
ascertained in and by the following statement:-
This invention relates to a new or improved method of and means for ventilating
buildings rooms and the like and has for object to admit a fully sufficient volume
or current of fresh air into the room or the like without creating a draught which
frequently is found troublesome and injurious to persons in delicate health and
is more or less unavoidable with the ventilating devices that have hitherto been
in general use.
In carrying my invention into practice I employ a ventilator frame consisting
of a frame across the opening of which two screens of gauze or like material are
stretched at suitable distance from each other so as to permit the space between
them being filled with wool or similar antiseptic material if required.
The frame itself is preferably made oblong in shape corresponding in width
with the sash of the window but of lesser depth than the latter and any convenient
height may be chosen.
For purposes hereinafter described a longitudinal flange of india-rubber or other
suitable material is provided on the top bar of the ventilator frame while the lower
bar has one or more projections pins or lugs pointing downward and intended to
be placed into corresponding recesses or holes sunk into the bottom board of the
sash frame. In placing the ventilator frame in position I raise the window
sash and introduce the frame into the guide or groove provided for the sash by
first inserting one side of the frame and then turning the other inward which is
easily practicable owing to the lesser thickness of the ventilator frame as compared
with the window sash. The ventilator is now lowered so as to firmly settle the
projections or lugs before described into the recesses or holes provided for them
in the bottom board of the sash frame, the upper part of the frame is then secured
in position by means of suitably shaped wedges introduced into the said frame and
the centre lath of the sash frame, and finally the window sash is pulled down on
to the ventilator frame when the before mentioned indiarubber flange on its upper
bar secures an airtight closing between the ventilator and sash.
For removing the ventilator this process is reversed.
Fig. 1 is a partial front elevation of a window having the ventilator inserted
below the bottom sash.
Fig. 2 is a side view of Fig. 1 partly in section showing the method of securing
the ventilator in position by means of wedges and pins.
Figs. 3, 4 & 5 illustrate details and Fig. 6 is a plan of a window partly in
section illustrating the manner in which the ventilator can easily be inserted
into or removed from the sash frame.
The ventilator frame a is preferably made oblong in shape corresponding in
width with the window sash but of lesser depth than the latter and any convenient
height may be chosen. Across the opening of frame a two gauze screens b, b,
(Figs. 2 & 5) are stretched at suitable distance from each other so as to permit
of the space between them being filled with wool or other antiseptic material as
suggested in Fig. 5. On the upper bar of frame a a flange c of india-rubber or
as the case may be is provided to secure airtight closing when the sash is pulled

page_text: down on the ventilator. To secure the ventilator frame firmly in position one or
more projections or pins d, d, (Figs. 2, 3, 4, 5) are provided at the lower part of
the bottom bar, which are made to fit into holes or recesses d', d, Fig. 6 in the
corresponding part of the sash frame the upper part of frame a having at one or
both its side ends vertical grooves or recesses adapted to receive wedges c (Figs. 2
and 4) which serve to press the ventilator against the front sash bar as illustrated
in Fig. 2. When the ventilator frame is to be removed from the window the
wedges e are first taken from the grooves e¹, the ventilator is then raised sufficiently
to disengage the pins or lugs d, d, from holes d', d, and subsequently one of the
sides of the ventilating frame is turned outward as shown in Fig. 6.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:-
An improved method of and means for ventilating buildings rooms and the like
essentially consisting of the insertion into the sash frame below the window sash
of a ventilator composed of a suitable frame having gauze screens stretched across
its aperture substantially as and for the purpose described and illustrated in the
accompanying drawings.
Dated this 97th day of T.... 100%