AN IMPROVED DOMESTIC VENTILATOR
Year: 1884

page_text: THOMAS SMITH ELLIS of N° 6. Clarence Street in the City and County of
Gloucester, Surgeon do hereby declare the nature of my invention for AN IMPROVED
DOMESTIC VENTILATOR to be as follows:-
A new form of Inlet Ventilator to be hereinafter known as the "Accessible"
Bracket Ventilator constructed on the form of an L composed of pine, mahogany
or other ornamental wood or of metal or similar or suitable material so as to be
readily fixed to a wall or partition and to serve as a base or ground work for
ornamental treatment or to be so constructed and decorated as to be an ornamental
feature in a room.
The horizontal portion or shaft is constructed of wood or other suitable material
to form an inlet chamber into which may be placed any suitable device for
Filtrating or Perfuming or Disinfecting the air as it enters the room. The
external mouth of the inlet chamber may be fitted with an air brick or grating
in the usual way.
The vertical shaft is also constructed of wood or other suitable material and is so
arranged as to give the incoming current of air an upward direction and so to avoid
draught.
At the junction of the horizontal shaft with that of the vertical shaft and on the
outer angle of the meeting or mitre of the two shafts is constructed a sloping or
bevelled face fitted with an accessible shutter or valve which when the ventilator
is in action rests against the sloping or bevelled face thereby forming a pannel and
leaving a clear passage behind the shutter or valve for the entrance of air through
the horizontal and vertical shafts.
This shutter or valve is also arranged to fit into the horizontal inlet shaft to
close the opening when needed and is kept in either position for the admission or
exclusion of air by means of small flush bolts or other fastenings attached to the
shutter or valve.
This shutter or valve is also arranged to slide upwards clear of the horizontal
inlet shaft allowing the same to be cleaned or adjusted for filtrating the incoming
air by the insertion of a suitable device for this purpose. The removal of this
shutter or valve also allows of the vertical and horizontal shafts being cleaned by
a duster or feather brush.

page_text: The horizontal portion of the Inlet Chamber should be fixed on sight level i.e.
about 5 feet above the floor of the room to admit of easy inspection, attention
& cleaning and also to ensure the entrance of the purest external air. The top of
the vertical shaft may be fitted with a coved cornice to form a corona and to
project the air into the room with the least possible draught.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed or used I declare that
what I claim is
The combination of an horizontal fresh air inlet shaft or ventilator with a
vertical shaft or chamber in such a manner as to render both the horizontal portion
or shaft and the vertical portion. or shaft readily accessible for closing, opening
cleansing or inspection the same being fixed most advantageously upon the sight
level and being so constructed as to admit of the insertion of any Filtring,
Perfuming or Disinfecting medium substantially in the manner hereinbefore
described.

page_text: DIECIFICATION
1 THOMAS SMITH ELLIS of N° 6 Clarence Street in the City and County of
Gloucester Surgeon do hereby declare the nature of my invention for AN IMPROVED
DOMESTIC VENTILATOR and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
A rectangular fresh air inlet wall ventilator constructed on the form of an L
composed of pine mahogany or other ornamental wood or of metal or similar or
suitable material so as to be readily fixed through and to a wall or partition and to
serve as a base or groundwork for any ornamental treatment or to be so constructed
and decorated as to be an ornamental feature in a room.
The horizontal portion or chamber A Figures 1, 2, 3, 4 and 5 is constructed of
wood or other suitable material to form an inlet chamber extending from the
external to the internal face of a wall and into which may be placed any suitable
device for filtrating, perfumning or disinfecting medicating, cooling or heating the air
as it enters the room. The external mouth of the inlet chamber may be fitted with
an air grating in the usual way.
The vertical shaft B Figures 1, 2, 3, 4 and 5 is also constructed of wood or other
suitable material and is so arranged as to give the incoming current of air an
upward direction and so to avoid draught.
At the junction of the horizontal chamber with that of the vertical shaft and on
the outer angle or meeting or mitre of the two shafts is constructed a sloping or
bevelled face fitted with an accessible shutter or valve C Figures 1, 2, 3, 4 and 5
which when the ventilator is in full action rests against the sloping or bevelled face
thereby forming a panel in the front of the ventilator and leaving a clear passage
behind the shutter or valve for the entrance of air through the horizontal chamber
and vertical shaft as shewn in Figures 1 and 2.
This shutter or valve is also arranged to fit against and into the horizontal inlet
chamber as shewn in figure 3 to close the opening when needed and is kept in
either position for the admission or exclusion of air by means of small flush bolts or
other fastenings or guides attached to the shutter or valve.
The shutter or valve is likewise arranged to allow of its being partially opened,
and is kept in place by means of cork buffers let into the sides of the shutter or
valve, as shewn in figure 4 to reduce the amount of incoming fresh air and to
increase the draught by the contraction of the area of the opening to the vertical
shaft at the angle or mitre at the back of the shutter and also in this position
causing a portion of the internal air to be drawn upwards and be co-mingled with
the external air and so partially warm it before it is passed into the room.
This shutter or valve is also arranged to slide upwards clear of the horizontal
inlet chamber as shewn in figure 5 allowing the same to be adjusted for filtering or
otherwise modifying the incoming air by the insertion of suitable devices for this
purpose.
The closing or removal of this shutter or valve also allows of the vertical and
horizontal portions being cleaned by a duster or feather brush.

page_text: The horizontal portion or Inlet Chamber A should be fixed in the wall on sight
level i.e. about 5 feet above the floor to admit of easy inspection and cleaning and
also to ensure the entrance of the purest external air available.
The top of the vertical shaft may be fitted with a coved cornice to form a corona
and to project the air into the room with the least possible draught.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed or used I declare that
what I claim is
1 The combination of an horizontal fresh air inlet chamber extending from the
outer to the inner surface of a wall with a vertical shaft constructed on the inner
face of a wall in such a manner as to render the appliance readily accessible for
closing opening, cleaning and inspection.
2 That from its construction the fact of the ventilator being open or closed may
be instantly and distinctly visable from any reasonable distance in a room.
3 That the said ventilator allows of the introduction of fresh external air into a
room without any draught, the inward and upward current of air being vertical
with the face of the vertical shaft or portion of the ventilator.
4 That the ventilator is so constructed as to admit of the insertion of any
filtering perfuming, Disinfecting Medicating Heating or Cooling medium and the
whole being arranged and constructed substantially in the manner hereinbefore
described.