IMPROVEMENTS IN VENTILATORS
Year: 1885

page_text: We, THOMAS JENKINS, Builder, and ROBERT BRAXTON PERRESS, Architect, both
of Newport, in the Isle of Wight, in the County of Southampton, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN VENTILATORS,"
to be as follows:-
Ventilators constructed in accordance with this invention are exceedingly simple
and are suitable for use in connection with dining and drawing rooms, libraries,
billiard rooms, halls, kitchens, larders, pantries, bath rooms, bedrooms, and all
other parts of dwelling houses, it is also applicable to churches, schools, hospitals,
asylums, barracks, prisons, offices and every description of buildings public or
private, and also to vehicles and ships. They are readily applied and will be
found exceedingly suitable and convenient for regulating the egress and admission
of air,
In the following description the ventilator is described as applied to the frame-
'work of an ordinary window but the method of applying it to any desired part of
a building, vehicle or ship, is similar in all respects. Reference is made to the
accompanying drawings in which the same letters indicate like parts in all the
Figures.
.
Figure 1. is an interior elevation of the upper part of a window with the
ventilator applied to the frame, and Figures 2. and 3 are respectively a vertical
cross section and an exterior elevation of the same.
Au aperture of the desired shape and size is formed and within the same is
placed a perforated plate a. of metal corresponding in size and shape therewith.
In front of the exterior of the said plate is arranged one or more louvres b. of glass
or other material to prevent the ingress of water, and opposite the interior of the
said plate is placed a moveable shutter c. by means of which the before mentioned
aperture may, when desired, be more or less opened or closed. The shutter c. is
arranged to slide, or, it is so mounted in connection with counterbalancing weights
so that it may be raised or lowered, as desired, or it may be hinged, in the last two
forms the shutter c. may easily be moved by a cord. In the first two forms the
shutter may be made to move into a box or frame when the aperture is opened.
It will be readily understood that many arrangements of metal work, such as, bars
and wire net work, will be found suitable substitutes for the perforated plate a.
D
"

page_text: Ventilators constructed as herein before described can be left open at all times
without danger and they will also be found very suitable for employment in con-
junction with vertical tubes for supplying air. One great advantage possessed by
such ventilators is that they, in no way, detract from the architectural appearance
of any building to which they are applied.
Dated this seventh day of August One thousand eight hundred and eighty five
We, THOMAS JENKINS, Builder, and ROBERT BRAXTON PERRESS, Architect, both
of Newport, in the Isle of Wight, in the county of Southampton, 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:
Ventilators constructed in accordance with our said Invention are exceedingly
simple and are suitable for use in connection with dining and drawing rooms,
libraries, billiard rooms, halls, kitchens, larders, pantries, bath rooms, bedrooms,
and all other parts of dwelling houses; they are also applicable to churches,
schools hospitals, asylums, barracks, prisons, offices and every description of
buildings public or private, and also to vehicles and ships. They are readily
applied and will be found exceedingly suitable and convenient for regulating the
egress and admission of air.
In the following description the ventilator is described as applied to the frame-
work of an ordinary window but the method of applying it to any desired part of
a building, vehicle or ship, is similar in all respects. Reference is made to the
accompanying drawings in which the same letters indicate like parts in all the
Figures.
Fig. 1. is an interior elevation of the upper part of a window with the ventilator
applied to the frame, and Figures 2. and 3. are respectively a vertical cross section
and an exterior elevation of the same.
An aperture of the desired shape and size is formed and within the same is
placed a perforated plate a. of metal corresponding in size and shape therewith.
In front of the exterior of the said plate is or are arranged one or more louvres b.
of glass or other material to prevent the ingress of water, and opposite the interior
of the said plate is placed a movable shutter c. by means of which the before
mentioned aperture may, when desired, be more or less opened or closed. The

page_text: shutter c. is arranged to slide, or, it is so mounted in connection with counter-
balancing weights that it may be raised or lowered, as desired, or it may be hinged,
in the last two forms the shutter c. may easily be moved by a cord. In the first
two forms the shutter may be made to move into a box or frame when the aperture
is opened. In some cases, the shutter is fixed on one end of a bracket, as shown in
Figure 4; the said bracket d. being arranged to turn on a pivot e. so that the
shutter may be moved upwards, more or less into a recess above the ventilator.
The turning of the bracket is effected by a cord connected to the end of an arm f.
or to an eccentric, attached to the pivot end of the bracket. It will be readily
understood that many arrangements of metal work, such as, bars and wire net
work, will be found suitable substitutes for the perforated plate a.
Ventilators constructed as hereinbefore described can be left open at all times
without danger and they will also be found very suitable for employment in con-
junction with vertical tubes for supplying air. One great advantage possessed by
such ventilators is that they, in no way, detract from the architectural appearance
of any building to which they are applied.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
The improvements in ventilators consisting of the arrangement of a perforated
plate a. a moveable shutter c. and one or more louvres b. in connection with an
aperture, substantially as hereinbefore described and shown in the accompanying
drawings.