Improvements in the Ventilation of Buildings.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Ventilation of Buildings.
I, ALBERT SIMPSON of Elmhurst, near Garstang, North Lancashire, Merchant,
do hereby declare the nature of this invention to be as follows:-
At
On
I erect my improved buildings with cavity walls and arrange suitable openings
in the outer walls to admit fresh air preferably situated slightly above the
level of the floors. These openings communicating directly with the cavities
within the walls are made of considerably less area than the said cavities.
suitable heights on the inner walls of the cavities preferably some four or five
feet above the floor level I admit the air to the interior of the buildings by
means of openings of considerably larger area than those made in the outer walls,
these openings being so contrived as to give the air an upward motion.
the roofs or ceilings of my buildings I make openings of large collective area
evenly distributed over the roofs or ceilings for the escape of the vitiated air. My
improved arrangements as herein described have the effect of slightly warming
the outer air before its admission into the buildings and owing to the very much
larger area of the admitting passages reducing its draught to a minimum. At
the same time sufficient buoyancy remains to expel the vitiated air as quickly
as it is generated.
L
قيصر
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上 $
1 1000
COMILELE SPECIFICATION.
Improvements in the Ventilation of Buildings.
I, ALBERT SIMPSON of Elmhurst, near Garstang, North Lancashire, Merchant,
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 is an improved method whereby fresh air can be introduced into
any building and vitiated air can be carried away from the same without creating
current or draught. To introduce the outer air I form a chamber, or cavity, or
chambers, or cavities within the walls. These may be of any shape and con-
structed of any material but the essential part is that each one shall be of con-
siderably larger area than the opening through which the outside air is intro-
duced into it. The larger the area of the chamber in proportion to the outside
air inlet and the more effectually will the draught or current of air be reduced
in velocity. A proportion of six to one is a very suitable one. After the outside
air enters the chamber it expands itself and loses its velocity to such an extent
[Price Sdl

page_text: that when it issues into the interior of the building after passing along the
chamber no draught is perceptible. The chamber may be made to run in any
direction and be of any length but it is desirable it should be at least three or
four feet long and that the area of its opening into the building shall not be less
than the area of the chamber itself. The air chamber or chambers may be
constructed in all the walls of a building or in one wall only.
To carry away the vitiated air I make openings all over the walls, or the floors,
or the ceilings, or the roofs of the building as may be most convenient, of a total
collective area to that of the air chambers. These openings must be evenly dis-
tributed so as to prevent a current of air perceptible to the human touch being
drawn to any one opening. Fig. 3 shows these openings at f.
Apparatus to warm, cool, or moisten the air can be placed in the air chamber
provided the proportionate area of the air chamber to the opening admitting the air
is not interfered with.
d is the
In the sectional drawing herewith o represents the outer air inlet.
cavity or chamber. e is the outlet for the air into the building. One section
Fig. 1 shows the walls in stone or brick, the other Fig. 2 in timber.
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
1. The even introduction of the outside air into a building without draught
by introducing the outside air into an interior chamber before it enters the
building itself. Such chamber must be six or more times larger in area than
the opening through which the air enters the chamber. The air after expansion
in this chamber must be allowed to enter the building at a height of at least four
feet above the floor of the building.
2. An arrangement in conjunction therewith in the roof or ceiling of a building
which provides openings evenly distributed all over the said roof or ceiling to
allow the vitiated air to pass out without creating a draught or current of air
to any one point.
Dated this Thirteenth day of January 1900.