IMPROVEMENTS IN THE CONSTRUCTION OF VENTILATING APPARATUS
Year: 1882

page_text: LETTERS PATENT to Thomas FitzGerald Wintour, of Bloomsbury, in the County
of Middlesex, for an Invention of IMPROVEMENTS IN THE CONSTRUCTION OF
VENTILATING APPARATUS
PROVISIONAL SPECIFICATION left by the said Thomas FitzGerald Wintour
at the Office of the Commissioners of Patents on the 16th February 1882.
THOMAS FITZ-GERALD WINTOUR, of Bloomsbury, in the County of Middlesex,
"IMPROVEMENTS IN THE CONSTRUCTION OF VENTILATING APPARATUS,"
This Invention which relates to improvements in the construction of ventilating
apparatus, comprises various modifications which are respectively applicable to
varied uses as hereinafter described.
According to one modification of especial utility for adaptation to window frames
and for use in ordinary rooms as an efficient means for providing an outlet and
inlet of air without causing draught, I use a cylinder, or a cone, or a double cone,
made of perforated metal or of wire gauze, and close it with glass or metal onds
one of which may be made so that it will open, and encircle it centrally by a metal
band in which the cylinder may be a fixture or may be telescopic, the band being
suitably formed or provided at the top with a flange or plate so that it may be
readily secured to the window frame, and being similarly formed at the botton so
that it may be fixed to the glass of the window, the end glasses are placed between
wires or in frames of metal. For increasing the inlet of air, a revolving fan of
metal, horn, or mica may be placed within the cylinder
According to another modification suitable for an inlet only, I attach a metal
tube to the apex of the cone, the tube being intended to be passed through a wall
or through woodwork to communicate with the outside air,-a hood of metal may
be placed entirely or half over the cylinder or outside portion.
According to another modification of special utility as an exhaust ventilator for
chimney shafts to remove vitiated air from rooms, to one end of the cylindrical or
conical portion made and fitted with metal ends (one of which may open) as

page_text: herein before described, I attach a funnel shaped part which is intended to lead into
the chimney-shaft, fitting it with a copper or other valve to prevent any smoke
from entering the apartment.
According to another modification specially useful as an exhaust ventilator for
hothouses and other buildings, and suitable where regulation of the interior
temperature is desired, I adapt to the arrangement herein before immediately
described a valve which can be opened or shut by means of a wire handle or other
equivalent contrivance.
"In another mode of attaining this object and to prevent any down draught, I
provide a kind of cowl intended to be fixed on the roof with two arms which I fit
with valves. This cowl may also be used in connection with a shaft on the roof or
other parts of buildings from an exhaust ventilator intended to be placed in or near
the ceiling of the apartment, being funnel shaped with a gas jet across the mouth of
the funnel.
According to another modification especially suitable as an inlet ventilator for
churches chapels, and other large buildings, for obtaining a side inlet of air and an
avoidance of draught,-I remove the glass sides from the old trap-ventilator in
present use, and substitute gauze or perforated metal, and glaze the top, and I
similarly treat swing lights over doors by adding a frame of gauze or perforated
metal.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Thomas FitzGerald Wintour in the Great Seal Patent Office on the
16th August 1882.
THOMAS FITZ GERALD WINTOUR, of Bloomsbury, in the County of Middlesex
IMPROVEMENTS IN THE CONSTRUCTION OF VENTILATING APPARATUS
This Invention, which relates to improvements in the construction of ventilating
apparatus, comprises various modifications which are respectively applicable to
varied uses as hereinafter described.
According to one modification, which is illustrated on the accompanying Drawings
in Figs 1 and 2, and which is of especial utility for adaptation to window frames,
and for use in ordinary rooms as an efficient means of providing an outlet and inlet
of air without causing draught, or allowing of the admission of dust or insects, I
make the ventilator with a cylindrical case 1 as illustrated in Fig 1, or with a
truncated conical case, as illustrated in Fig; 3, or with a double truncated conical
case as illustrated in Fig; 2, made of perforated motal or of wire gauze, and close
the ends of the case with glass or metal discs 2, one of which may be made so that
it will open as dotted in Figs; 1, and 3; and encircle it by a metal band 3 in which
the case I may be a fixture as in Fig 2, or may be telescopic or movable as in
Fig; 1. the band being suitably formed or provided at the top with a flange or
plate 4, so that it may be readily screwed or secured to the window frame, or being
provided with a flange or ledge as at 5 for holding the glass of the window on
either side, and being similarly formed at the bottom so that it may be fixed to the
glass; the end glasses are placed between circular wires or frames of metal 6. For
increasing the inlet of air, a revolving fan of metal, horn or mica may be placed
within the cylinder. When the case is movable within its band 3, it is provided
with guide rods 7, and the band with guiding tubes 8, which slide thereupon. The
ventilator illustrated in Fig 2 may be made in separate truncated cones, and
united by means of a slot in one, and a projection in the other to engage in the slot,
or the cones may be screwed together for facility of fixing in a circular orifice in
wood work or in a plate glass window.
According to another modification, which is illustrated in Fig; 3, and which is
suitable for an inlet only, I attach a metal tube 9, to the apex-opening of the
conical case, the tube being intended to be passed through a wall or through wood-
work to communicate with the outside air, by means of a perforated metal, plate
let into the wall or fixed on the end of the tube 9; or in lieu of combining the
tube 9, with the conical case, the smaller opening of the case may be also closed
with gauze and fitted with a flanged part at 4 as dotted, and at 5 so that it can be
placed in a window as previously described.
According to another modification which is illustrated in Fig 4 and which is of
special utility as an exhaust-ventilator for chimney-shafts to remove vitiated air
from rooms, to one end of a cylindrical or conical perforated case made and fitted
with a metal end which may open as hereinbefore described, I attach a funnel
shaped part 10 which is intended to lead into the chimney shaft, fitting it with a
copper or other valve at 11 to prevent any smoke from entering the apartment.
According to another modification which is illustrated in Fig 5 and which is
specially useful as an exhaust-ventilator for hot-houses and other buildings, and
suitable where regulation of the interior temperature is desired, I adapt to such
an arrangement as hereinbefore immediately described, with reference to Fig; 4, a
valve 12, which can be opened or shut by means of a wire handle 13 or other
equivalent contrivance.

page_text: In another mode (which is illustrated in Fig 6) of of attaining this object, and to
prevent any down draught, I provide a kind of cowl or shaft 14, intended to be
fixed on the roof of the building, and made with two arms 15. which I fit with
valves 16. This cowl may also be used in connection with a shaft 17 leading
from a funnel-shaped exhaust-ventilator 18, intended to be placed in or near the
ceiling of the apartment and having a gas jet as at 19, across the mouth of the
funnel.
According to another modification which is illustrated in Fig 7, and which is
especially suitable as an inlet-ventilator for churches, chapels, and other large
buildings, for obtaining a side inlet of air, and an avoidance of draught, I remove
the glass sides from the old trap-ventilator in present use, and substitute gauze or
perforated metal 20, and glaze the top 21; and I similarly treat swing lights over
doors by adding a frame of gauze or perforated metal for them to move in.
Having now particularly described and ascertained the nature and objects of
my said Invention together with the manner in which the same is to be or may
be performed or carried into practical effect, I would remark in conclusion that
what I believe to be novel and original, and therefore claim as the improvements
constituting the Invention secured to me by the hereinbefore in part recited Letters
Patent, is ;-
The peculiar construction and improved formations of ventilators as applicable to
the varied uses herein before described, substantially as described, and as illustrated
on the accompanying Drawings.
In witness whereof, I, the said Thomas Fitz Gerald Wintour, have hereunto
set my hand and seal, this 14th day of August in the year of our Lord,
One thousand, eight hundred and eighty two.