Improved Process of Rectifying Sulphuric Acid, and Means or Apparatus therefor.
Year: 1894

page_text: Date of Application, 24th July, 1894
Complete Specification Left, 4th Dec., 1894-Accepted, 11th May, 1895
PROVISIONAL SPECIFICATION
Improved Process of Rectifying Sulphuric Acid, and Means or
Apparatus therefor.
I, JOHN WILLIAM SCOTT, of Woodhouse Chemical Works, Leeds, Manu-
facturing Chemist, do hereby declare the nature of this invention, to be as
follows:-
According to my invention I employ a series of glass retorts, arranged one below
another, each on separate beds, composed of brickwork, faced with an iron dish, in
the said dish is a saucer which holds the retort. Also from the dish, in case of
breakage of the retorts, a spout, fixed on the face of the bed, conveys away the
acid, without loss and preserves the brickwork. An iron spout or metaleine spout
The retorts are
is provided under the bed for conveying the acid into a cistern.
held in position at the top by means of au iron frame clasping round the retorts.
The acid is run from a pan or chamber into the first glass or retort and so through
each glass or retort by means of connections or syphons, and is cooled in a cistern
at the bottom. The fumes passing from the glasses or retorts into a leaden trunk,
and from there into a condenser.
The apparatus is covered in by means of an iron roof, having a glass front, a
glass door opening opposite each retort, thereby enabling the workman to readily
see how the acid is boiling.
The apparatus is arranged with a furnace or fire so constructed that the flame or
hot vapour is directed along flues, and turned so as to play directly upon the
retorts.
L
1 1
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1004
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent to the Applicant.
Improved Process of Rectifying Sulphuric Acid, and Means or
Apparatus therefor.
I, JOHN WILLIAM SCOTT, of Woodhouse Chemical Works, Leeds, Manu-
facturing Chemist, 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 :-
My invention has reference to improved process of rectifying sulphuric acid, and

page_text: •
Fig. 5, is a plan of retort clip plate.
Fig. 6, is a plan of retort shell or stand.
Fig. 7, is a section of retort shell or stand.
According to my invention I employ a series of glass retorts A arranged one
below another, each on separate beds, composed of brickwork B faced with an iron
dish C, in the said dish is a saucer D which holds the retort A, and which is held
in the dish C by a bearing D'. Also from the dish C, in case of breakage of the
retorts A, a spout E of iron or "metaleine" fixed on the face of the bed and
connected with the retort stands by vents or pipes E¹, conveys away the acid into a
trough E without loss and preserves the brickwork. The trough E³ is connected
by pipe E to a cistern situated at any convenient place.
The retorts A are held in position at the top by means of an iron frame G
clasping round the retorts A.
The iron frames consist of two half plates G', see Fig. 5, forming an aperture G³
through which the retort A passes, the two half plates G' rest in a frame G provided
with ledges G³ upon which the said half plates G¹ can slide to adjust themselves to
the expansion of the retorts.
The acid is run from a pan or chamber H into the first glass or retort, and so
through each glass or retort, by means of connections or syphons J, and is cooled in
a cistern at the bottom. The fumes passing from the glasses or retorts A by
flasks A (as shown in Figs. 3, and 4,) into a leaden trunk K into which the said
flasks join and from there into a condenser.
The apparatus is covered in by means of an iron roof L, having a glass front, a
glass door opening opposite each retort, thereby enabling the workman to readily
see how the acid is boiling.
The apparatus is arranged with a furnace or fire M so constructed that the flame
or hot vapour is directed along the furnace flue until it comes in contact with the
end of such flue, which end beats back a certain portion of the said heat or vapour
and turns it along a flue N situated immediately above the furnace and through
diagonally arranged openings or vents O, which pass from the flue N into a flue Ñ³
under the retorts. The other portion passes by cross flue N¹, see Fig. 2, into a
flue N2 and is turned through further diagonally arranged openings or vents O
which pass from the flue N2 to the flue N³ under the retorts. The openings or
vents are arranged so as to pass the heat or hot vapour directly upon the
retorts A.
The flues N, N and N join each other, so forming a flue around the setting of
the retorts. The flue N³ being under the retorts, forms the delivery flue to the
main flue P.
The flame or hot vapour after circulating round the retorts A, in manner
aforesaid finally passes from the flue N³ into the main flue P to the chimney P¹.
R are openings, through which are rods connected to dampers for closing the
openings or vents O in the flue N2 by means of which any of the retorts A can be
shut off from the heat at this side.
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. A process of rectifying sulphuric acid by passing it through a series of glass
retorts A contained in a furnace or heating chamber, and sustained on separate
beds composed of brickwork B, faced with iron dishes C within which are saucers D
for holding the retorts A, which are joined to each other by connections or
syphons J, and to a leaden trunk K by flasks A', the liquid passing from a retort
of higher to one of lower elevation throughout the series, and the fumes, derived
from the heating of the liquid, passing into the trunk K from the retorts A
through the flasks A', the said retorts A being heated by directing the flame or
hot vapour along flues, and causing it to impinge directly upon the said retorts A
by means of openings or vents O, substantially as shown and described.

page_text: 2. In a process of rectifying sulphuric acid, the combination of a series of glass
retorts A upon separate beds composed of brickwork B faced with dishes C, within
which are saucers D for holding the retorts A at their lower ends; and a series of
iron frames G for clasping round the retorts A at or towards their top ends, such
as and for the purposes shown and described.
3. In apparatus for rectifying sulphuric acid, the combination of a series of
retorts A upon beds composed of brickwork B faced with dishes C in which are
saucers D, a series of iron frames or clips G for clasping round the said retorts, a
series of flasks A' for joining the retorts to a leaden trunk K, a series of connections
or syphons J for joining the said retorts, and flues N, N' and N2, with openings or
vents O, for causing the flame or hot vapour to directly impinge upon the retorts,.
such as shown and described.
4. In apparatus for rectifying sulphuric acid, the combination of the dish C and
saucer D, as and for the purposes shown and described.
5. In apparatus for rectifying sulphuric acid, the combination of the iron
frames G and half plates G', operating as and for the purposes shown and
described.
Dated this 23rd day of November 1894
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent to the Applicant.
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent to the Applicant.