Year: 1888

page_text: We, EDWIN DICKINSON of Richmond in the Colony of Victoria, Butcher, and
FRANZ JOACHIM ALEXANDER KINDERMANN of Richmond aforesaid, Engineer, 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 that class of ventilating appliances which are usually
placed in the ceilings or roofs of chambers, halls and other large buildings and consists
of a rotating fan mounted on a vertical spindle. The lower extremity of the spindle
works in a cup or bearing in a banger secured to the ceiling of the chamber. The
discs of the fan are furnished with short rudimentary vanes placed at a suitable angle
and which as the fan rotates force the air from the fan into the chamber. Beneath
and firmly attached to the lower disc of the fan is a cone through the apex of which
the spindle passes. The apex of this cone together with the lower disc of the fan,
form suitable supports for the spindle and obviate the necessity for placing a further
support for the spindle above the aperture through which the cool air enters the fan,
and thus reducing the sectional area of the aperture. The upper disc of the fan is
cut away so as to form a circular aperture, to which is fitted a dwarf cylinder through
which the cool air above referred to enters the fan. Over this dwarf cylinder is
placed another short and flanged cylinder which may be so constructed as to form a
water joint so as to prevent any undue escape of the air entering the fan. Over
the flanged cylinder is placed the air pipe, which is preferably constructed of oblong
section. The portion of this air pipe which lies immediately over the flanged cylinder
is so cut away as to leave a circular space through which the air, which is drawn along
the pipe, may pass and enter the fan. Resting upon the upper side of the air pipe is
a circular box furnished with a lid. The upper extremity of the spindle enters this
box through a water tight joint. To the extremity of the spindle is secured a small
turbine or other equivalent mechanical contrivance, which is caused to rotate by
means of a jet of water which is conveyed into the box, the water being conducted
away from the interior of the box by a waste pipe placed in any suitable position.

page_text: §
The motion thus imparted to the turbine is communicated through the spindle to the
fan below the air thus drawn along the air pipe, enters the fan and is forced there-
from with considerable velocity to the interior of the chamber to be cooled or
ventilated.
In the accompanying drawings Fig. 1 is a longitudinal section of our apparatus
and Fig. 2 is a plan view of the same partly in section. a is the fan, bare the
rudimentary vanes of the fan, e is the spindle which is supported at the points 1-2 of
the cone d. The hanger e supports and serves as bearing to the inferior extremity of
the spindle c.
The dwarf cylinder / passos through the circular aperture made in the
upper disc of the fan a, and is surmounted by the flanged cylinder g, which may be
so constructed as to form a water joint to prevent the leakage of the air as it enters
the fan. is the air pipe or conduit. j is the box placed above and resting upon
the air pipe h. Secured to the superior end of the spindle c (which passes through
the water tight joint as it enters the circular box j), is the turbine l, which is rotated
by a jet of water issuing from the pipe m. The rotary motion thus communicated to
the turbine is conveyed to the fan a through the medium of the spindle c and the
air which enters the fan a from the conduit is driven into the chamber or hall with
considerable force. The water which is utilized to turn the turbine is conveyed
away along the waste pipe z.
Having now particularly described and ascertained the nature of our said Invention
and in what manner the same is to be performed, we declare that what we claim is :-
The improved ventilating appliance as described and illustrated in the accompanying
drawing.