Improvements in, and Apparatus for, the Manufacture of Flowers of Sulphur.
Year: 1897

page_text: Date of Application, 24th July, 1897
Complete Specification Left. 25th Ann 1808 Accented 11th June 1808
Date of Application, 24th July, 1897
Complete Specification Left. 25th Apr 1808 Accepted 11th June, 1808
PROVISIONAL SPECIFICATION.
Improvements in, and Apparatus for, the Manufacture of Flowers of
Sulphur.
We, RICHARD HOLDEN DAVIDSON, Alkali Manufacturer, and THE UNITED ALKALI
COMPANY LIMITED, both of GII, Exchange Buildings, Liverpool, in the County of
Lancaster, do hereby declare the nature of this invention to be as follows:-
Flowers of sulphur are usually obtained by boiling sulphur in a pot and leading
the vapours into a condensing chamber.
According to this invention the pot for boiling the sulphur is so arranged in
connection with a condensing chamber and a fan or equivalent device that the
cooled gases from the condensing chamber can be rapidly circulated or passed
across the surface of the boiling sulphur by means of the fan or equivalent device.
In this manner the sulphur-vapours are rapidly passed from the pot to the con-
densing chamber and an increased efficiency and a corresponding economy in fuel
are obtained whilst the rapid removal of the sulphur vapours to some distance by
the current of gas prevents local overheating and secures the production of a larger
proportion of fine flowers of sulphur. Several pots may be used in connection with
one condensing chamber.
The sulphur may be melted in one pot or in several pots and fed from this to
a separate boiling pot or boiling pots."
The pots can be set in brickwork and be provided with fire places. The other-
wise waste heat from a boiling pot or pots may be employed to melt the sulphur
in a feeding pot or pots.
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JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.
COMPLETE DIEUTICATION.
Improvements in, and Apparatus for, the Manufacture of Flowers of..
Sulphur.
We, RICHARD HOLDEN DAVIDSON, Alkali Manufacturer, and THE UNITED ALKALI
COMPANY LIMITED, both of GII, Exchange Buildings, Liverpool, in the County of
Lancaster, 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:-
Flowers of sulphur are usually obtained by boiling sulphur in a pot and leading
the vapours into a condensing chamber..

page_text: According to this invention the pot for boiling the sulphur is so arranged in
connection with a condensing chamber and a fan or equivalent device that the
cooled gases from the condensing chamber can be rapidly circulated or passed
across the surface of the boiling sulphur by means of the fan or equivalent device.
In this manner the sulphur-vapours are rapidly passed from the pot to the con-
densing chamber and an increased efficiency and a corresponding economy in fuel
are obtained whilst the rapid removal of the sulphur vapours to some distance by
the current of gas prevents local overheating and secures the production of a
larger proportion of fine flowers of sulphur.. Several pots may be used in con-
nection with one condensing chamber.
The sulphur may be melted in one pot or in several pots and fed from this pot
or these pots to a separate boiling pot or boiling pots.
The pots can be set in brickwork and be provided with fire-places. The other-
wise waste heat from a boiling pot or pots may be employed to melt the sulphur in
a feeding pot or pots.
A very efficient arrangement of apparatus for carrying out this invention is
shewn in the accompanying drawings. Figure 1 being an end elevation, Figure 2
a longitudinal vertical section, Figure 3 a horizontal section and Figure 4 a trans-
verse section of the apparatus.
A is a cast iron or other pot into which the sulphur to be volatilised and con-
verted into flowers of sulphur is fed. The pot A is set in brickwork A¹ and is
heated directly from a furnace 1), the products of combustion from the furnace
after acting on the pot A, and also heat direct from the furnace, being conducted
by flues 2 respectively to beneath another cast iron or other pot B in
which the sulphur is melted before it is admitted to the pot A. The pot A is
connected to the pot B by a feed pipe E. The waste products of combustion pass
from beneath pot B by a flue B' to the chimney. The molten sulphur passes from
the pot B through the feed pipe E into the pot A which latter pot is situated in
the condensing chamber G in which a circulation of the air or gases in the said
chamber is produced by, means of a fan C.
The said air or gases being caused to pass over the pot A in the direction indi-
cated by the arrows removes the vapours of sulphur from the said pot as they are
produced which vapours deposit in the form of flowers of sulphur in the chamber G.
To avoid overheating of the brickwork in which the pot A is set, and so prevent
any flowers of sulphur that may deposit thereon from melting, air spaces F are
provided in the said brickwork and through which spaces, cold air may be caused
to circulate by any suitable means. The pots A and B, being connected together
by the feed pipe E the level of the molten sulphur in the pot A can be readily seen
and the desired level be maintained by adding as required fresh sulphur to the
B in the proportion that sulphur is volatilised in the pot A. The fan C, can
be driven by any suitable motor.
pot
Although we have illustrated in the drawing only one melting pot and one boil-
ing or volatilising pot, it is obvious that two or more of each may be provided, and
the details of construction of the apparatus may be considerably modified without
departing from the nature of this invention.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is:-
1. In the manufacture of flowers of sulphur, passing the cool gases from the
condensing chamber over the surface of the boiling sulphur by means of a fan or
equivalent device substantially as hereinbefore described.
2. In apparatus for the manufacture of flowers of sulphur the combination of a
pot or pots in which the sulphur is boiled, communicating with a pot or pots in
which the sulphur is melted by the waste heat from the boiling pot or pots, before
it is fed into the boiling pot or pots; a condensing chamber and a fan or equiva-
lent device for causing the gases of the condensing chamber to pass or circulate

page_text: over the surface of the boiling sulphur substantially as and for the purpose herein-
before described.
3. The combination and arrangement of parts constituting apparatus for the
manufacture of flowers of sulphur substantially as hereinbefore described and
illustrated by the accompanying drawings.
Dated this 2nth day of Anvil 1898
JOHNSONS & WILLCOX,
*.
47, Lincoln's Inn Fields, London, W.C., Agents.