IMPROVEMENTS IN VENTILATORS
Year: 1884

page_text: I, THOMAS JONES of 36 Sloane Street, Belgrave Square, in the County of
Middlesex, Surgical Bandage Maker do hereby declare the nature of said Invention
for "IMPROVEMENTS IN VENTILATORS," to be as follows:-
This Invention has for its object the construction of ventilators in so simple
a manner as to make it almost impossible for them to get out of order, and at the
same time to ensure their perfect effeciency.-One form is adapted to admit fresh
air, and the other to draw off foul air.
The Invention in reference to the foul air ventilator, consists of a box, case,
shell or chamber, made of cast iron or other suitable material, and having a slot or
orifice at or near the top of its front side, and a similar slot or orifice at or near
the bottom of the back. The case or chamber may be formed with a flange in
front and is made the full width of the chimney, and of a depth equal to the
thickness of the brick work of the chimney breast to which it is to be applied. The
slot or orifice in front may be partially covered with fretwork, and the lower
part of the front may be ornamented with any suitable design.
The Invention is applied by cutting a hole in the chimney breast at or near the
top of the room to be ventilated and inserting the case or chamber before described
in the said hole so that the front side shall be flush with the inside of the wall
of the room, and the back flush with the inside of the chimney, care being taken
to fill up with plaster or other cement any irregularities or cracks between the case
and the wall.
It has been found by experience that a ventilator so constructed will syphon or
draw off the hot or vitiated air in the top of a room, but will not permit the
smoke, if any in the chimney, to enter the apartment.
The ventilator for the admission of fresh air consists of a similar shell or case,
of dimensions adapted to the thickness of the wall, with openings situated as
before described, or with the openings more or less opposite each other, but for this
purpose it is proposed to insert within the case between the openings a piece of
perforated metal which extends from the bottom to near the top. The air will
enter the opening from the outside, pass into the first division of the chamber and
strike against the perforated metal plate, part of it passing through it to the
opposite opening, while the remainder will flow upwards, and over the perforated
division to the outlet leading it to the apartment.
Dated this First dev of January 1884.
W. H. BENNETT,
Agent for the Petitioner.

page_text: I, THOMAS JONES of 36 Sloane Street, Belgrave Square, in the County of
Middlesex, Surgical Bandage Maker do hereby declare the nature of my Invention
for "IMPROVEMENTS IN VENTILATORS," 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 Drawings and to the letters
and figures marked thereon, that is to say :—
This Invention has for its object the construction of ventilators in so simple
a manner as to make it almost impossible for them to get out of order, and at the
same time to ensure their perfect effeciency. One form is adapted to admit fresh
air, and the other to draw off foul air.
In order that the Invention may be more easily understood Drawings are attached
hereto of which the following is a description. Fig. 1 is a front elevation, Fig. 2
a transverse sectional elevation, and Fig. 3 a back elevation of the ventilator
adapted for drawing off foul air. Fig. 4 is a front elevation, Fig. 5 a back elevation,
Fig. 6 a front elevation with the door open, so as to show the perforated divisional
plate, and Fig. 7 is a transverse sectional elevation of the ventilator to be used for
the admission of fresh air.
The Invention in reference to the foul air ventilator consists of a box, case, shell
or chamber A Figs. 1, 2 and 3, made of cast iron or other suitable material, and
having a slot or orifice at or near the top of its front side at B, and a similar slot
or orifice at or near the bottom of the back at C. The case or chamber may be
formed with a flange D, D in front, and is made the full width of the chimney,
and of a depth equal to the thickness of the brickwork of the chimney breast to
which it is to be applied. The slot or orifice in front may be partially covered
with fretwork, or may have a slide attached to regulate the size of the openings,
and the lower part of the front E may be ornamented with any suitable design.
The Invention is applied by cutting a hole in the chimney breast at or near the
top of the room to be ventilated and inserting the case or chamber before described
in the said hole so that the front side shall be flush with the inside of the wall of
the room, and the back flush with the inside of the chimney, care being taken to
fill up with plaster or other cement any irregularities or cracks between the case
and the wall.
It has been found by experience that a ventilator so constructed will syphon, or
draw off the hot or vitiated air in the top of a room, but will not permit the
smoke, if any in the chimney, to enter the apartment.
The ventilator for the admission of fresh air consists of a similar shell or case F,
of dimensions adapted to the thickness of the wall and the size of the apartment
to be ventilated, with openings situated as before described, or with the openings
more or less opposite each other, but for this purpose it is proposed to insert within
the case between the openings a partition formed by a piece of perforated metal G
which extends from the bottom to near the top. This perforated partition may be
cast with the case, or the upper part of the partition may be made of stamped
sheet metal attached to the lower part of the partition or sides of the case.
air will enter the opening from the outside, pass into the first division of the
chamber and strike against the perforated metal plate G, part of it passing through
it to the opposite opening, while the remainder will How upwards, and over the
perforated division to the outlet leading it to the apartment.
The

page_text: Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare what
I claim is,
The construction of ventilators as herein described and shown on the Drawings.