Year: 1889

page_text: Figure number from D to D.
The said figures shew induced up air current fixed ventilators illustrating the
improvements existing in the present invention, the said ventilators being adapted
to be fixed in position by passing them over the upper end of air uptake shaft or
pipe the ventilator being rested or supported on the upper edge of roof with
brackets projections or platforms.
This Invention consists in the uptake pipe or shaft of the ventilating head with
a double casing lined with hair felt or woolen fabric or any such non conducting
material sufficient to keep the external air from cooling down the internal air as
shewn on vertical sections Figures numbered 3 and 4 marked G.
Our invention is shewn in vertical sections, Figures numbered 3 and 4 and
horizontal sections Figures numbered 6 and 8 looking down on tubes. Vertical
tubes marked H whatever shape either round or partly round, oval or partly oval,
triangular square or any polygonical shape. The tubes may be of any size and
any number and may be fixed into an iron plate to act as an inducer, plate fixed
with iron brackets marked I to keep up weight of tubes as shewn on vertical
sections figures numbered 3 and 4.
In our invention we claim wire gause, perforated zinc or any equivalent material
marked J on vertical sections, Figures numbered 3 and 4 and horizontal sections,
Figures numbered 5 and 7 looking down on top of gause fixed to an iron plate
for a space between the outer casing and the wire gause on top and sides as shewn
in the figures.
In our invention we claim marked K on vertical sections, Figures numbered 3
and 4 cylinder or cage with ring wire gause perforated zinc or any equivalent
material set on a plate turned up on the outside edge and set on brackets and
fixed to outer case to catch any rain that may blow into the rim.
We also claim the small gutter marked L round the uptake or air shaft to collect
condensed moisture of air to be led out with a small pipe-to the nearest convenient
place. Horizontal sections, Figures numbered 5, 6, 7, and 8.
Figure numbered 6 from B to B and Fignre numbered 8 from D to D are looking
down on tubes.
Figure numbered 5 from A to A and Figure numbered 7 from C to C are looking
down on top of wire gause and plate where gause is set on.
Gause and iron plate turned up to take away any water that might be blown in
marked K on figures numbered 3 and 4.

page_text: We also claim our ventilating heads with ventilating tubes and wire gause as
before described round partly round, oval, partly oval, triangular, square or any
polygonal shape and hair felt or any non-conducting fabric equivalent.
Our ventilator can be made in wood, stone, brick, iron, zinc, lead or copper, but
what we claim are the vertical tubes and the wire gause material and the hair felt
or any non-conducting fabric inside.
Having now particularly described and ascertained our said Invention and in what
manner the same is to be performed, wo declare that what we claim is
An induced air current and uptake fixed "Ventilator" the combination of hair
felt or any non-conducting material, constructed substantially as shewn and described
with perpendicular tubes, wire gause arranged substantially as described with
reference to the drawing annexed.
D
1
T
1006
WM. GRAY, SENIOR.
WM. GRAY, JUNIOR.