Improvements in Inlet and Outlet Ventilators.
Year: 1888

page_text: Date of Application, 25th July, 1888
Complete Specification Left, 15th May, 1889-Accepted, 29th June, 1889
Improvements in Inlet and Outlet Ventilators.
I, THOMAS GUEST NORMANTON of 41 Cheltenham Street, Abbey Road Barrow in
Furness, in the County of Lancaster, Architect and Surveyor do hereby declare the
nature of this invention to be as follows:-
My Invention relates to Improvements in my patent Ceiling Ventilator No. 12056
10th October 1885 in which the inlet and Outlet Ventilators are combined in one
piece of apparatus.
My Improvement consists in making the outlet openings from the Room to be
ventilated which communicate with the outlet pipe or chamber, in a similar form to
the inlet openings therein described, the openings into the outlet pipe or chamber
being narrow slits or holes, expanding into the Room either in V shaped, conical,
trumpet mouthed or other expanding form, instead of the Central Outlet as described
in patent No. 12056. The object of this improvement is that when a fire is used in
the Room, instead of the outlet becoming a draughty inlet (as frequently happens with
Ventilators when a sufficient quantity of fresh air cannot conveniently be admitted to
feed the fire) it becomes a valuable inlet, assisting and relieving the other inlets.
The incoming air being gently diffused throughout the Room without draught, the
vitiated air escaping up the Chimney through the fireplace.
When the fireplace is closed the inlets and outlets resume their proper functions of
inlet and outlet Ventilators.
My Invention may also be applied to the Outlet pipes or air-ducts of various other
Ventilators at the ends communicating with the Room or other place to be ventilated,
so as to prevent them from becoming draughty inlets.
My Invention is applicable to the ventilation of Schools, Churches, Chapels, and
public buildings, Rooms and apartments of dwelling houses and other Buildings,
Cabins, holds, or other Compartments of Ships, railway and other carriages, Ship
Carriage or other Lamps and lanterns and to other enclosed air spaces requiring to be
ventilated.
To avoid recapitulation in the further description, these various purposes to which
the invention is applicable are respectively defined as the Room to be ventilated.
•
My Improvements consists in making an air chamber to be fixed upon the ceiling of
the Room to be ventilated, this chamber is divided into two compartments, one of.
which I call the inlet chamber and the other the outlet chamber. These inlet and
outlet chambers communicate with the external air by means of a pipe or other approved
form of air-duct. I prefer where practicable that the outlet pipe should be carried.
through the Roof and be surmounted with a cowl or other outlet head.
The inlet and outlet chambers communicate with the Room by means of a series of
expanding openings having a narrow slit or hole opening into the chambers and
expanding into the Room, these openings may be bell-mouthed, conical, wedge shaped,
or other form of expanding opening for admitting air without draught.
These expanding openings may be made in various plain or ornamental forms, to radiate
or be otherwise arranged around a common centre, or may be arranged in any other way
that necessity may require so as to diffuse the incoming air passing through them; .
whether through the outlet which owing to extraneous circumstances (such as the
nduction caused by a fire) may become an inlet. When the ventilators are working..
n the ordinary course and are not affected by extraneous circumstances the one set
f openings become inlets without draught and the others are outlets.
The admission and exit of air may be regulated by valves.
These ceiling ventilators provide for the admission and exit of air without draughts
nd without confusion of the air currents

page_text: The Inlet part of the Ceiling Ventilator is similar to my patent No. 12056 Oct. 185
but instead of the central outlet therein described I make the openings from the
outlet chamber which communicate with the room similar in every respect to the inlet
openings.
The Ceiling Ventilators may be made in various forms for fixing in different parts
of the ceiling, either in the centre or against the side walls, but in the various modi-
fications the arrangement of the inlet and outlet openings are substantially the same
as previously described.
COMPLETE SPECIFICATION.
Improvements in Inlet and Outlet Ventilators.
.I THOMAS GUEST NORMANTON of 41 Cheltenham Street, Abbey Road Barrow in
Furness in the County of Lancaster, Architect and Surveyor 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 :-
My Invention relates to Improvements in my patent Ceiling Ventilator No. 12056
10th October 1885 in which the inlet and outlet Ventilators are combined in one
piece of apparatus.
My Improvement consists in making the Outlet openings from the Room to be
ventilated which communicate with the outlet pipe or chamber, in a similar form to
the inlet openings therein described, the openings into the outlet pipe or chamber
being narrow slits or holes expanding into the Room either in V shaped, conical,
trumpet mouthed or other expanding form, instead of the central outlet as described
in patent No. 12056.
The object of this improvement is, that when a fire is used in the Room, instead of
the Outlet becoming a draughty inlet (as frequently happens with Ventilators when a
sufficient quantity of fresh air cannot conveniently be admitted to feed the fire) it
becomes a valuable inlet assisting and relieving the other inlets, the incoming air being
gently diffused throughout the Room without draught, the vitiated air escaping up
the chimney through the fireplace.
When the fireplace is closed the inlets and outlets resume their proper functions of
inlet & outlet Ventilators.
My Invention may also be applied to the Outlet pipes, or air ducts of various other
Ventilators, at the ends communicating with the Room or other place to be ventilated
so as to prevent them from becoming draughty inlets. My Invention is applicable to
the Ventilation of Schools, Churches, Chapels, and public buildings, rooms and
apartments of dwelling houses, and other buildings, cabins, holds, or other compart-
ments of Ships, Railway and other Carriages, Ship Carriage or other Lamps and
lanterns, and to other enclosed air spaces requiring to be ventilated.
To avoid recapitulation in the further description these various purposes to
which the invention is applicable are respectively defined as the Room to be
ventilated.
My Improvements consist in making an air chamber to be fixed upon the ceiling of
the Room to be ventilated, this chamber is divided into two compartments, one of
which I call the inlet chamber and the other the outlet chamber. These inlet and
outlet chambers communicate with the external air by means of a pipe or other
approved form of air duct.
I prefer where practicable that the Outlet pipe should be carried through the Roof
and be surmounted with a Cowl or other outlet head.
The inlet and outlet chambers communicate with the Room by means of a series
of expanding openings having a narrow slit or hole opening into the chambers
and expanding into the room, these openings may be bell mouthed, conical,
wedge shaped, or other form of expanding opening for admitting air without
draught,
"

page_text: These expanding openings may be made in various plain or ornamental forms, to
radiate or to be otherwise arranged around a common centre, or may be arranged in
any other way that necessity may require so as to diffuse the incoming air passing
through them whether through the ordinary inlets or through the outlets which
owing to extraneous circumstances (such as the induction caused by a fire) may
become inlets.
When the Ventilators are working in the ordinary course and are not affected by
extraneous circumstances the one set of openings become inlets without draughts
and the others are outlets. The admission and exit of air may be regulated by
valves.
These Ceiling Ventilators provide for the admission and exit of air without draughts.
and without confusion of air currents.
The inlet part of the Ceiling Ventilators is similar to my patent No. 12056
Oct 185 but instead of the central outlet therein described, I make the openings
from the outlet chamber which communicate with the Room similar in every respect
to the inlet openings.
The Ceiling Ventilators may be made in various forms for fixing on different parts
of the ceiling, either in the centre or against the side walls, but in the various modi-
fications, the arrangement of the inlet and outlet openings are substantially the same
as previously described.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a section through a building shewing the Ceiling Ventilators, air-chambers
and inlet & outlet pipes, with the divisions between the inlet & outlet chambers. The
air chambers on the lower ceiling being placed between the floor joists, allows the
inlet and outlet pipes to be placed between the joists so as to communicate with the
external air on opposite sides of the building, when fixed in this way the inlet and
outlet parts of the Ventilator alternate according to the direction of the wind.
Figs. 2 and 3 are plans shewing the divided air chambers with the inlet and outlet
pipes and the expanding inlet and outlet openings, the semi-circular one being for
fixing on the ceiling against the side wall.
Fig. 5 is a section of the semi-circular Ventilator Fig. 3.
Fig. 4 shews a section of another pattern of Ventilator with the divided air chamber,
the expanding openings being embossed on the internal surface of the air chambers,
forming perforated countersunk slits or holes.
The pipes lettered a are inlets.
The pipes lettered b are outlets.
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 is
1st. The combination of an Inlet and outlet Ventilator for fixing on the Ceiling of