Year: 1888

page_text: I, CHARLES ELLIS, of Selby Street, Hull, in the County of York, Grocer, do hereby
declare the nature of my said invention to be as follows:-
This Invention relates to improvements in ventilators formed with vanes or louvres,
the special object of the Invention being to render such ventilators capable of being
opened and closed so that they may at any time be put in and out of operation as
desired. The ventilating apparatus may be made of a flat, circular, square, octagonal
or other desired shape, and the vanes or louvres may also be made of a curvilinear or
angular formation being so disposed relatively to each other as that opposite parts of
adjacent vanes or louvres may be brought together so as to close off the ventilation
or may be opened apart so as to permit of or cause the ventilation.
The vanes or louvres may be supported in any convenient way either by means of
end pivots or by bars attached thereto at any convenient part thereof and let into
side plates, or otherwise, and they may be operated singly or in series in any suitable
manner In one modification, the pivots are carried by sliding connections working
somewhat similar to a parallel ruler so that the movement of one bar causes all the
connected louvres to close and the movement of the other bar causes them all
to open.
The louvres may, if required, be rendered watertight by adapting strips of india-
rubber or like means to the meeting parts or to the ends or such parts thereof as may
be required.
Atmospheric air can be conveyed into the room to which the improved ventilators
are applied by means of a flat or round tube fixed to the ventilator, and by means of
two plates fixed to the bottom of such tube with a small space between them such
air can be dispersed within the room in such a manner as to avoid draught. Such
plates may be made of any desired size or shape and if applied to the Flat Ventilators
they would be attached to the bottom louvre which is rigidly secured, and if applied
to the round ventilators they might be worked from the top.
In one modification of a square or octagonal ventilator adapted to collapse or open
and close as hereinbefore stated, the upper end of an outlet tube 18. contracted and

page_text: surrounded by the vanes or louvres which are surmounted by a cap, the vanes or
louvres being adapted to close against the tube and cap respectively and to open so
as to permit of an upward current of an between the vane and the tube inducing an
upward flow of the foul air and causing its escape at an opposite part of the ventilator,
and of a returning current of air caused by the confirmation of the contiguous parts
of the vane and of the cap also inducing an upward flow of air in the tube and its
scape.
The ventilators and the louvres or vanes thereof may be made of metal, wood, glass
or any other suitable material.
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C.,
Agents for the Applicant.
I, CHARLES ELLIS, of Selby Street, Hull, in the County of York, Grocer, do hereby
declare the nature of the said Invention and in what manner the same is to bo
performed to be particularly described and ascertained in and by the following
statement :-
This Invention has reference to improvements in ventilators formed with curved or
angular louvres, and consists essentially in so arranging and disposing such louvres
relatively to each other and to the supporting parts thereof as that opposite parts of
the louvres may be brought together so as to close off the ventilation or may be
opened apart so as to permit of or cause the ventilation whereby the ventilator may
be put into and out of operation as and when desired.
On the accompanying drawings Figs. 1. to 4. illustrate sectional elevations of
various modifications of carrying the Invention into effect
1, represents the louvres which in accordance with the present improvements are
pivotted as at, 2, in their side supports, 3, or are so otherwise mounted as that they can
be caused to occupy the positions shown in full lines in which the ventilator would
be in full action, or the positions shown in dotted lines in which the ventilator would
be out of action, or any intermediate position required.
In the modification represented in Fig. 1. the pivotted louvres are hinged as at, 4,
centrally of their length to nuts, 5, on a screwed rod, 6, or are hinged at their ends
to a cross rod wormed centrally of its length and working on the rod, 6, which is
supported in suitable brackets, 7, and are operated by rotating the screw by a thumb
screw, 8, or otherwise in any suitable manner.

page_text: In the modification represented in Fig. 2. the pivots at one end of the series of
louvies are formed or provided with short arms, 9, which are connected by a bar, 10,
the louvres being caused to assume the required positions by pushing or pulling the
said bar or an extension of one of the armis, 9, in any convenient manner.
In Fig. 3. the arms, 9, extend in opposite directions on both sides of the pivots
and are connected to parallel bars, 10, the louvres being operated as required by pulling
one or other of the said bars. A substantially similar arrangement to that herein-
before described with reference to Fig. 2. is illustrated in Fig. 4. as adapted to a
single louvre.
Fig. 5 represents a sectional elevation of a capped ventilator constructed with an
opening and closing louvre adapted to operate in connection with a top cap, 11, and
with a bottom contracted outlet, 12 13, represents a deflector for the issuing current
of air, and, 15, represents a tube for guiding the air from building into the ventilator.
Figs. 6, and, 7, represent an advantageous means of applying the Invention to a
cylindrical, octagonal, or other tubular form of ventilator constructed with such
louvres. In such case I attain the object of the Invention by raising and lowering
the louvres relatively to each other. In the modification represented in these figures
the bottom louvre, 16, is a fixture and is supported by a triangular stay bar, 17,
serving as a guide to a block, 18, formed with a female threaded screw at, 19, which
block can be turned by gearing, 20, or in any other suitable manner. The louvre, 1,
next above is also supported by a triangular stay bar, 21, serving as a guide to a
rod or block, 22, which screws into the aforesaid screw block, 18, for a limited length,
and at, 23, is itself internally screwed and receives a screwed rod, 24, depending from
the top or capped louvre, 25. 26, represents flanged guide rods, respectively secured
to the top cap and to the base plate, 27, and working together through the said stay
bars, 17, 21, in such a manner as to vertically guide and prevent rotation of the cap
and louvre, 1. When the screw block, 18, is rotated the intermediate and top louvres
are caused to (say) descend together until the intermediate one closes onto the bottom
one, upon which the screw, 22, turns together with the block, 18, and causes the
capped louvre to descend onto the immediate one
In a variation of this modification both louvres may be simultaneously closed by
means of a screw rod working in a nut adapted to the stay bar of the intermediate
louvre, and with a thread of twice the pitch in a tubular part depending from the
capped louvre in such a manner as that when the rod is turned both louvres will
(say) descend simultaneously but the capped louvre at twice the speed of the
intermediate louvre so that both louvres will close simultaneously.
Atmospheric air can be conveyed into the room to which the improved ventilators
are applied by means of a tube, 28, attached at the bottom louvre and adapted at its
bottom end with a flattened outlet, 29, through which the air can be dispersed within
the room in such a manner as to avoid draught, vide Fig. 8
The ventilator and the louvres thereof may be made of metal, wood, glass or any
other suitable material.
In Fig. 9, 1 have illustrated an improvement in the construction of louvres of
the nature herein before described, the same consisting in adapting them with end
flanges, 30, which in the modifications illustrated in Figs. 1. to, 3, are adapted to
work within corresponding recesses in the double walled side supports, 3, in such a
manner as to effectually exclude the entrance of water at such parts whether the
louvres are open or shut, and for such purpose also I propose to adapt the meeting
edges of the louvres and the side supports when more advantageous to do so with.
strips, 31, of india rubber, or other suitable material.
I desire it to be understood that I lay no claim to the construction of the
louvres of the peculiar forms delineated on the accompanying drawings, nor claim
their use otherwise than in the improved manner herein before described and
referred to, and I do not restrict myself to the means hereinbefcre described of
causing the louvres to assume the various positions required as it is obvious that
other equivalent means may be used for such purpose.

page_text: Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed I declare that what I
claim 19:
1. In ventilators formed with curved or angular louvres, so arranging and
disposing such louvres relatively to each other and to the supporting parts thereof
as that the ventilator can be put into and out of action substantially in the manner
hereinbefore described.
2. The application and use in ventilating apparatus constructed with louvres of
.the kind hereinbefore referred to, of the bereinbefore described means of putting
such ventilators into and out of action.
3. The application and use of the tube, 28, in combination with the improved
ventilating apparatus hereinbefore described.
4. The construction of the louvres with end flanges, 30, substantially as and for
the purpose hereinbefore described.
Dated this 6th day of March 1889
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C.,
Agents for the Applicant.