Improvements in Separating Smoke or Soot from Air or other Gases, and in Utilizing the Air or Gases so Purifled.
Year: 1891

page_text: Date of Application, 3rd June, 1891
Complete Specification Left, 3rd Mar., 1892-Accepted, 9th Apr., 1892
PROVISIONAL SPECIFICATION.
Improvements in Separating Smoke or Soot from Air or other Gases,
and in Utilizing the Air or Gases so Purifled.
I, PIETER VAN GELDER of Sowerby Bridge, in the County of York, Milling
Engineer, do hereby declare the nature of this invention to be as follows:-
-
This invention has for its object a simple method and apparatus for separating
the smoke from the products of combustion, proceeding from boilers, fire places,
furnaces and the like also the utilizing of the residual air or gases for drying
purposes. In the chimney flue, or other uptake I place an horizontal obstruction
and pass the smoke or sooty gases horizontally into a "tornado" dust machine or
other similar effective machine worked on the vortex principle. From the orifice
in the centre of the top of this dust machine I bring the air back again to the
chimney above the horizontal diaphragm. In some portion of the course of the
smoke or sooty gases which have to be deprived of their soot I place a fan steam
jet or other means for forming a strong draught. At the base of the "tornado" or
other dust collecting machine I place a vessel of any convenient sort for receiving
the soot, which vessel can from time to time be emptied. The purified air,
especially in corn mills, can be at once passed through damp grain, or other damp
material. For drying purposes the carbonic acid and sulphurous acid of the
effluent gases from furnaces are very effective for destroying weevil and other
insects or germs, while the residual heat is very effective in increasing the
dessicating tendency.
In speaking of the "tornado" machine, I may use it simple or compound. The
one I prefer consists of a polygon prism of 10 or 12 sides in which the air enters
tangentially surmounting a hollow inverted pyramid of a similar number of sides,
the air escapes at the top preferably into a second or third chamber of similar
character and the dust escapes at the small end of the pyramid into the containor
of any convenient size.
Dated the 2nd day of June 1891
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Separating Smoke or Soot from Air or other Gases,
and in Utilizing the Air or Gases so Purifled.
I, PIETER VAN GELDER of Sowerby Bridge in the County of York, Milling
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 has for its object a simple method and apparatus for separating
the smoke from the products of combustion, proceeding from boilers, fire-places,
furnaces and the like, also the utilising of the residual air or gases for drying
purposes.
In my prior English Patents No. 20030 of Dec. 12, 1889 & No. 1811 of Jan. 31, 1891,
I covered apparatus for separating dust from air. It is this apparatus with
suitable modifications that I now prefer to use for separating smoke, but a
succession of other forms of vortex machines will succeed to a limited degree.

page_text: Referring to the drawings:
:-
Figures 1 and 2 show my dust collecting apparatus as set forth in my aforesaid
Patent of 1891 applicable, to some extent, to smoke collecting.
Figure 3 shows a modification actually at work for smoke collecting where there
was not quite height enough for three chambers one on top of the other.
Figures 4 and 5, sections of same through and yy, respectively.
Figure 6, plan of middle chamber.
The letters of these drawings are mostly described in my Patent aforesaid
of 1891.
N is a conduit connecting the opening in the top of the polygonal prismatic
chamber D² with similar chamber D³ entering this tangentially just as the air
spout A enters D' tangentially, as shown in Figure 6 (and Figure 2). F1 F2 are
truncated hollow pyramids in the chimney of doubtful utility, as, while they do
assist a trifle in separating the residual smoke, they probably injure the draught to
an extent sufficient to counterbalance this advantage, and I simply insert them in
the drawings, as these are a copy of my most successful experimental apparatus.
K is a strip extending the length of chambers D1 D2 D3 vertically on each side
and a short distance down the chambers J1 J2 J. This is found of great use in
catching the smoke, as forming additional corners, and, in some cases, I may place
several of these side by side on each of the sides of the polygon.
The remaining letters of reference are set forth and explained in my aforesaid
prior Patent.
In applying the apparatus to existing boilers the gases can be cut off from the
chimney, passed through the smoke collecting devices and then allowed to enter
the chimney again. In order to increase the draught, a fan or equivalent exhauster
is used to draw or suck the gases through the smoke separator. These gases in
flour mills I then utilise in the grain dryers for drying the grain instead of (or
before) allowing them to enter the chimney.
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 process of separating smoke or soot from air or other gases which consists
in passing the mixture through a series of vortex machines preferably provided
with numerous longitudinal corners in the separating chambers for the smoke to
collect in substantially as described.
2. Utilising the effluent hot gases of the boiler furnace in a mill by passing them
through a smoke separator and then through the grain to be dried, or the grain
drying apparatus.
Dated this 2nd day of March 1892.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.