Improvements in and connected with Ventilation.
Year: 1899

page_text: Date of Application, 26th Oct., 1899
Complete Specification Left, 20th July, 1900-Accepted, 1st Sept., 1900
Improvements in and connected with Ventilation.
I, WILLIAM BIRCH, 13, Holland Place, Highfield, Sheffield, Caretaker, do
hereby declare the nature of this invention to be as follows:-
My invention is for the purpose of removing from and quickening the circula-
tion of air through any room or building.
And is capable of various forms of construction and adaptation.
Heat is the active agent or propeling force. Any of the well known heating
agents may be used. The combustion chamber or stove may be placed in the
basement or on the floor level or at any other convenient point or place. The
air from the room or building to be ventilated is conducted by means of pipes
or air-conducting flues to the said combustion chamber through or around which
it passes and is thence conducted out of the building.
Dated this 25th day of October 1899.
.I, WILLIAM BIRCH, of No. 13, Holland Place, Highfield, Sheffield, Caretaker,
do hereby declare the nature of this invention and in what manner the same
is to be performed, to be particularly descirbed and ascertained in and by the
following statement:-
My present invention is for the purpose of removing from, and quickening
the circulation of air, through any room or building, and is capable of various
forms of construction and adaptation. Heat is the active agent producing the
requisite propelling force to promote extraction and expulsion of air, variable
at will.
I will further explain my method by reference to the annexed drawings which
illustrate its application to a single room of say a house, gas being used as the
heating agent. Fig. 1, is a perspective view of a building having one of its
sides removed. Fig. 2 is a sectional view, on an enlarged scale, of a gas burner
with combustion chamber, suitable for use in either vertical, horizontal, or
oblique position. Fig. 3, is an end view of the same.
The vitiated air is collected from any number of openings, as 0, 0¹, in, or
near, the ceiling, and is drawn into, one or more, air tight pipes, flues, or
ducts 1), fixed above the highest room to be ventilated, the pipes D being
connected to one or more downcast shafts or pipes D₁ which convey the air
down to some convenient place, preferably at, or near, the floor level, where they
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page_text: are joined to one common chamber D², connected to, or opening from which is,
an upcast or outlet flue D³, carried up and delivering to atmosphere some dis-
tance above roof.
A gas burner B is fixed either in the upcast duct D³, or in the chamber D³,
as near as may be to the foot of D3, the gas may be ignited through an opening,
(not shown) fitted with an airtight door, no air being allowed to enter the system
at any point, except from the rooms to be ventilated, the combustion is entirely
sustained by air drawn from such rooms, the velocity of air movement will
therefore depend primarily upon the intensity of the heat generated in relation
to the area of the ducts, while the products of combustion together with the
induced current of air will be continuously expelled by the upcast D³. Fig's. 2
& 3 show a special combination of gas burner B, fitted inside a metal tube E
placed excentrically in a second tube C, fixed in 12, so that the induced current
of air passes all round both the said tubes with greater velocity into the aforesaid
upcast D³.
In multi-connections, ordinary regulator or non-return valves may be em-
ployed to secure uniformity of action, while for large capacity instalations, the
gas appliances may be replaced by a fuel fed furnace or stove, as is well under-
stood.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
The method and combination of parts for collecting vitiated air from the
upper portions of rooms, drawing such air downward to any convenient point in
airtight ducts, there heating a portion of such air by internal or external applica-
tion of heat, whereby an induced current is set up, and finally expelling all by
means of an upcast above the building itself, all substantially as herein described.
Dated this 19th day of July 1900.
ISAAC BECK, F.S.P.A.,.
Agent for the Applicant,"
Haymarket Chambers, 17, Haymarket, Sheffield.
ISAAC BECK, F.S.P.A.,
Agent for the Applicant,"
Haymarket Chambers, 17, Haymarket, Sheffield.