LY RESULTING FROM THE BOILING OF ESPARTO GRASS, STRAW, OR OTHER FIBROUS SUBSTANCES IN THE WORKING AND INCINERATING OF THE RESIDUE RESULTING FROM EVAPORATION
Year: 1869

page_text: THE WASTE LYES RESULTING FROM THE BOILING OF ESPARTO GRASS, STRAW, OR
OTHER FIBROUS SUBSTANCES IN THE WORKING AND INCINERATING OF THE RESIDUE
RESULTING FROM EVAPORATION," and have petitioned Her Majesty to grant
unto me, my executors, administrators, and assigns, IIer Royal Letters
Patent for the same, and have made solemn Declaration that I am the 5
first and truc Inventor thereof.
NOW KNOW YE, that I, the said Carl Dietrich Julius Seitz, do hereby
declare that the following Complete Specification, under my hand and
seal, fully describes and ascertains the nature of the said Invention, and
in what manner the same is to be performed, in and by the following 1
statement thereof, reference being had to the Drawings hereunto annexed,
that is to say:-
By the ordinary method of evaporating waste lyes and incinerating
the residue therefrom a very noxious stench is thrown off from the solid
residuum whilst being drawn out of the furnace, and while burning after
withdrawal.
Now my Invention consists in constructing and placing a hearth or
roaster and a furnace in close connection, so that the residuum in the
hearth or roaster having arrived at the state required is transferred into
the furnace without being brought into contact with the atmosphere,
the hearth or roaster and the furnace directly communicating with each
other either back to back, side to side, end to end, or back to side, or
end to side by means of an opening which may or may not be provided
with a damper. The furnace supports two or more superposed pans in
which the lyes are evaporated; it is provided with fire-bars to be sup-
plied with fuel in any convenient manner. The heat from the fire
having done its work in the furnace passes over the liquid in the lower
pan. The
pans are heated by the waste heat from the furnace and their
contents evaporated. The heat passing over and impinging upon the
liquid in the lower pan acts in a similar manner to the action of the heat
in a reverberatory furnace, at the same time it acts against the bottom
of the upper evaporating pan, there being an opening between one end
of the lower pan and the wall to enable it to do so.
the lower pan in the wall there is an opening or flue leading to the
chimney or by a flue underground up and into the fire of the hearth
or roaster.
At the other end of
Figure 1 of the accompanying Drawings is a sectional clevation of the
hearth or roaster through the line C, D, of Figure 2; Figure 2 is a

page_text: plan of the same in connection with the furnace, in this Figure
aste Lyes,&c.
the hearth or roaster and furnace are shewn as set back to back; Figure 3
is a section taken through the line A, B, of Figure 2; and Figure 4 shows
a transverse section through the line E, F, of the hearth or roaster and
5 furnace.
a is the foundation of the furnace; b, the bed on to which the mass
is placed after leaving the hearth. Above the furnace b I place two
evaporating pans c and d, and support them by a framework of iron
independent of the brickwork. The lower pan rests upon vertical iron
O standards or bearers e, e, bolted to the furnace plates f, f, and built into
the walls; these bearers are tied together by I irons g, g, stretching
across the arch h of the furnace. The upper pan d is supported by pro-
longations j, j, of the standards or bearers, a space k being between
the two pans c and d. The hearth or roaster is as before stated set back
to back with the furnace, and is in direct communication with it by
an opening 1; it is through this opening that the mass is transferred
from the hearth or roaster to the furnace.
The action is as follows:-The waste lyes resulting from the boiling
of esparto grass, straw, or other fibrous substances are run or pumped
into the pans in succession to be concentrated; from here they are run
into another pan of the construction shewn in Figures 5 and 6; this pan
is interposed between the hearth or roaster and furnace block and the
chimney. One or more flues are rivetted into or formed in the bottom of
the pan when two flues are employed, as shown in Figures 5 and 6. The
heat passes along one flue and returns by the other before passing off
to the chimney. In the furnace the mass is worked and turned about
frequently in order to freely burn off the resinous and gummy or car-
bonaceous matters; it is brought to a dull red heat (particularly avoiding
all fusion). When brought to this state it is withdrawn, and is without
any smell whatever. It is in a state of a blackish dry powdery mass
which gradually burns itself nearly white.
Figure 7 represents in sectional plan a hearth or roaster and a furnace
arranged end to end, and Figure 8 is a similar view of a hearth or roaste
and a furnace placed end to back.
And having now described the nature of my said Invention, and
in what manner the same is to be performed, I declare that I claim,-
First. The general construction and arrangement of a hearth or roaste