Improved Method of and Apparatus for Ventilating Buildings.
Year: 1892

page_text: Date of Application, 23rd May, 1892-Accepted, 25th June, 1892
COMPLETE SPECIFICATION.
Improved Method of and Apparatus for Ventilating Buildings.
I WILLIAM ALLEN, of Glenryn, Walpole Road, Boscombe, Bournemouth, in the
County of Hampshire, Gentleman, 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:-
This invention relates to an improved method of and apparatus for ventilating
buildings or individual rooms therein and consists in making use of the upward
tendency of an artificially heated column of air, the utilization being effected as
follows-
In a convenient portion of the interior of the building near the outer wall, is
located a vertical pipe, which terminates in the lowest room that it is desired to
ventilate, and passes upwards through the roof, the top of the pipe being provided
with a cap or cowl. From this pipe, issue branch pipes so fixed as to lie close to
the ceiling, these pipes projecting into the interior of the room and terminating in
a bell or trumpet-shaped mouthpiece.
In order that the invention may be more fully understood I have hereto annexed
a sheet of drawings showing partial section of a building with ventilating apparatus
applied.
a are the outer walls, 6 the roof and c the floorings. d is a vertical pipe from
which issue the branch pipes e and e'. The orifices or mouths of these pipes are
expanded and the projecting edges continued in the form of a shield e* of consider-
able diameter, the outer edges of which join the ceiling. In the attic f is a closed
chamber g through which the vertical pipe d passes, the portion within the chamber
being bent to form a coil within which is placed a lamp or gas-burner h, which,
when lighted heats the air within the coil and causes it to ascend, thus creating a
vacuum which is supplied by air from one or more of the branch pipes e e¹ in
proportion to the amount of passage afforded by the valves j. A continuous upward
current is thus established and the foul or overheated air of a room taken away, the
loss being replaced by fresh air entering through the doors or windows.
It will be readily understood that the example herein given of the method in
which my invention may be carried out is merely illustrative of the general
principle and that in actual practice many modifications will suggest themselves
according to the particular class of structure to which the invention is to be
applied.
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 :-
1. The method of ventilating buildings by carrying off the foul or overheated
air through branch pipes e, el communicating with a main pipe d, and producing the
necessary current by means of a lamp or gas jet acting on a coiled portion of the
pipe d which is located within a closed chamber g, the whole substantially as herein
described and illustrated in the accompanying drawings.
1000
HUGHES, SON & Co.,
38, Chancery Lane, London, Agents.