An Improved Method of Condensing Lead and other Metallic Fumes arising from Furnaces.
Year: 1890

page_text: Date of Application, 23rd Dec., 1890
Complete Specification Left, 23rd Oct., 1891-Accepted, 28th Nov., 1891
PROVISIONAL SPECIFICATION.
An Improved Method of Condensing Lead and other Metallic Fumes
arising from Furnaces.
I, SAMUEL ELLIOTT of Newbury in the County of Berks Contractor do hereby
declare the nature of this invention to be as follows:-
This invention relates to certain improvements upon and modifications of an
improved method of and apparatus for the treatment of smoke Letters Patent for
which were granted to me on the 7th day of August 1889 12460 and by which
modification I am enabled to condense the metallic fumes and vapours arising from
lead copper and other ores and minerals and the vapours discharged from smelting
and other furnaces.
According to my present modification I substitute a different tube or pipe leading-
from the furnace and into the washing tank A. in my former Patent referred to. I
make this pipe of a non-corrosive material and it may be either of fire clay or
enamelled iron or with a double casing containing water or a non-combustible sub-
stance. I cause the vapours and fumes arising from the furnaces to be drawn by
means of a suitable exhaust as a fan or steam jet into the washing tank which is
also enamelled or made of hard wood or other non-corrosive material and I also
enamel or otherwise make non-corrosive the beaters and perforated pipe used in
my said apparatus. The fumes and vapours are condensed by the constant spray
of waters caused by the rapid rotary motion of the revolving pipe with the wings
or beaters thereon contained in the washing tank A in my said previous Patent
described and this forms the most rapid method possible of condensing metallic
fumes. The water may also be impregnated with chemicals for the purpose of
assisting in the condensation and the soluble gases salts and acids held in solution
in the water at the bottom of the tank may be recovered.
Dated this 23rd day of December 1890.
COMPLETE SPECIFICATION.
An Improved Method of Condensing Lead and other Metallic Fumes
arising from Furnaces.
I SAMUEL ELLIOTT of Newbury in the County of Berks Contractor 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 certain improvements upon and modifications of an
improved method of and apparatus for the treatment of smoke Letters Patent for
which were granted to me on the 7th day of August 1889 number 12460 and by
which modification I am enabled to condense the metallic fumes and vapours arising
from lead copper and other ores and minerals and the vapours discharged from
smelting and other furnaces and chemical works.
According to my present modification for this purpose I substitute a tube or pipe
of a non-corrosive material and which may be either of fire brick or enamelled
iron as occasion may require, or it may be with a double casing containing water
or a non-combustible substance leading from the furnace into the washing tank in
my former Patent referred to. I cause the vapours and fumes arising from the
furnaces or works to be drawn by means of a suitable exhaust, as a fan or steam
jet, into the washing tank which is also enamelled or made of hard wood or other
Price 6d1

page_text: .
non-corrosive material, and partly filled with water; and I condense the fumes and
vapours by the constant spray of waters caused by the rapid rotary motion of the
revolving pipe with the wings or beaters thereon contained in the washing tank A
in my said previous -Patent described, and having perforated trays at the top
thereof.
The water in the tank may also be impregnated with a weak solution of sulphuric
acid, soluble chlorides, or other chemicals for the purposes of assisting in the
condensation.
In the accompanying drawing
Fig. is an outside view & Figure 2.a longitudinal section of an apparatus for
the condensing of fumes made in accordance with my said invention.
In both figures A is the washing tank in which the fumes are washed and con-
densed and which is either of wood or other non-corrosive material or enamelled.
Bis the pipe also of a non-corrosive material or enamelled and made with a double
casing containing water, or a non-combustible material as occasion may require,
and leading from the furnace, flue-or chamber in which the fumes are generated
or from which they are to be taken by means of the exhaust fan D into the per-
forated revolving pipe C with the beaters attached and the rapid rotary action of
which aided by the perforated trays i j k l m, n, causes a constant finely divided
spray which condenses' the fumes, the heavy non-soluble matters going to the
bottom of the tank from which they may be removed, and the soluble gases salts
and acids held in solution in the water at the bottom of the tank recovered.
Having-now-particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that-what I
claim.is.
1. In apparatus for condensing fumes the non-corrosive and non-combustible
pipe-B,-the-rapidly revolving pipe C, and the non-corrosive washing tack A con-
taining arrangements for beating the fumes and washing them with water in a
state of constant spray and thereby condensing them substantially as shewn and
described.
2. In apparatus for condensing fumes the combination of a non-corr sive and
non combustible pipe leading-from-the-chamber-from which fumes are to be taken,
a fan or other artificial exhaust a horizontal perforated pipe with wings or beaters
attached revolving with a rotary motion in a non-corrosive washing tank containing
arrangements for causing constant finely divided sprays of water-substantially as
shewn and described.
3. My improved fumes condensing apparatus substantially as shown and
described.
Dated this 22nd day of October 1891