An Improved Apparatus for Collecting and Destroying Dust.
Year: 1891

page_text: Date of Application, 25th Mar., 1891
Complete Specification Left, 16th May, 1891-Accepted, 8th Aug.. 1891
PROVISIONAL SPECIFICATION.
An Improved Apparatus for Collecting and Destroying Dust.
CHARLES EDWARD MUMFORD St. Andrews Works Bury St. Edmunds
Engineer do hereby declare the nature of this invention to be as follows:-
My invention relates to the arrangement & construction of an apparatus for
collecting dust & for destroying the same by means of water & steam, or by
one or the other only & is effected as follows. I use a tank of suitable shape,
either square or oblong, having an opening at the upper part at one end, to admit
air charged with dust, which is blown in by means of a fan, exhausting from the
chamber to be cleaned. A wheel having slats upon it, is hung in said tank, so that
the air entering at said opening is blown directly upon it. The said wheel is caused
to revolve by means of a pulley & band on the outside of either of the tank sides.
The said tank is filled with water to within a few inches of the centre of the spindle
which forms the axle of the said wheel and an overflow is placed at the opposite
end, or at one side of the tank to permit the escape of liquor, & a pipe & cock
for cleaning out the tank is placed at the bottom. Up
Upon the top of the tank is a
vertical drum with elbow & chimney. In the said vertical drum is placed seven lenses
of fine wore wire, into the centre of which a jet of steam is thrown by means of a
steam pipe & cock. About twelve inches higher up in said drum, a spray of water
is injected, which falls through the steam & passes down through the wire lenses
into the tank below. The air charged with dust, thus blown in on to the wheel
(which is kept wet with liquor from constant motion) & afterwards passing up
through the wire lenses (kept damp by means of the steam & water spray) is scoured
from dust & passes up through the chimney which rises from elbow leading out of
the vertical drum before named.
I claim also the combination of an exhaust fan in connexion with before described
apparatus.
COMPLETE SPECIFICATION.
An Improved Apparatus for Collecting and Destroying Dust.
CHARLES EDWARD MUMFORD St. Andrews Works Bury St. Edmunds
Suffolk 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 the construction of an apparatus for collecting and
destroying dust or noxious fumes, the object being to destroy same by passing
through a tank partly filled with liquor and specially constructed and fitted to
receive, purify, and separate air which is so charged from said impurities, allowing
the pure air afterwards to escape whilst the impurities are trapped in the liquor
and discharged in a harmless form.
According to the present invention a tank K Fig.. I is employed of suitable size,
filled with water or other liquid up to nearly the centre of spindle.
Near one end is a spindle, running across the said tank and passing through
gland bearings A. A. Fig. 2, provided with arms, & paddles or flyers N. N.
Fig. 11, composed of wove wire, canvas, or perforated metal, slightly waved, &

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covered in at each end by discs of equal diameter, O. O. Fig. II. To this wheel
motion is imparted by a pulley B, driven by a belt at a suitable speed.
The said winged wheel &. spindle, revolving in liquid is thus always kept wet &
washed..
Near to the top of end, against said paddle or winged wheel, is an opening C,
Fig. I, and the impure air is sucked from the chamber in which it may be found,
by means of an exhaust fan, and driven down through opening C, on to the said
paddle or winged wheel, which revolves towards the said opening.
The action of the said paddle, or winged wheel, is such as to catch the impure
air as it enters, and immerse it in the liquor before mentioned. The impure air
having passed through the slats of the said winged or paddle wheel, either through
the perforations, or between the small space left above water line & between lower.
part of spindle, travels up through the cylinder D Fig. I.
At the lower part of said cylinder, which is open & bolted upon top of said tank,
over corresponding opening J Fig. II, are six or more strainers E E E Fig. 1,
composed of wove wire, canvas, perforated metal, or other substance.
Branching out from cylinder D Fig. I is a bend, and up shaft F Fig. I, which
can be continued out of building into open air.
Into cylinder D Fig. I, a steam pipe G Fig. I is led, which plays a jet of steam
on to the strainers E E E, and immediately above through the bend branching
from D, is a water sparge pipe H Fig. I, through which liquor is sparged down the
cylinder, falling upon the strainers E E E.
The air thus in passing out of tank is again effectually scoured by passing
through the steam, entering through pipe G: and the liquor sparged through
pipe H, dispersed upon the strainers EEE:
The said liquor & moisture, with impurities, precipitated by them fall back into
the tank beneath.
The said tank K is provided at the other end, with an overflow & down pipe L
Fig. I & L Fig. II, bolted over a corresponding opening in the tank K, and also
with a wash-out pipe and cock M Fig. I, which leads from opening in bottom of
tank into overflow down pipe L..
The top of said pipe L is fitted with a cover, easily removable.
The top of cylinder D Fig. I is also fitted with a cover easily removable.
The strainers E E E are also constructed to be removable, and the 'sparge pipe,
is also easy of access.
Having now particularly described, and ascertained the nature of my said inven-
tion, & in what manner the same is to be performed, I declare, that what I
claim is :-
1. The combination & arrangement of apparatus for collecting dust, & for
separating & purifying, air, vapour, or dust, as hereinbefore described, with
reference to the accompanying drawings.
2. The employment of a tank, provided with winged or paddle wheels; with an
inlet, or entrance for air, immediately upon it. For a cylinder and escape shaft,
provided with lenses of wove wire, perforated metal, or other substance, & entrance
for steam, vapour, and liquor, with suitable outlets for overflow & washing out;
formed substantially and as for the purposes herein before described.
Dated this 15th day of May 1891.