Improvements in and connected with the Manufacture of Gas.
Year: 1895

page_text: Date of Application, 13th Apr., 1895-Accepted, 15th June, 1895
COMPLETE SPECIFICATION.
Improvements in and connected with the Manufacture of Gas.
1, HENRY SIMON of 20 Mount Street, Manchester, in the County of Lancaster,
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 relates to means and devices for separating and removing tarry
and other heavy substances which may be contained in gas as expelled from its
material source by heat and suction, and to means and devices to enable each oven
or retort to be worked independently of all others in the same battery, and it is
more particularly applicable to the apparatus and process used in the manufacture
of coke in ovens described in the Specification of Letters Patent granted to me as a
communication from abroad No. 2616 dated the 28th day of June A.D. 1879.
I will describe my present improvements with reference to the accompanying
drawings, in which :-
Figures 1 and 2 are respectively representations of vertical longitudinal and
transverse sections, and
Figure 3 is a sectional plan.
The cross section Figure 2 is supposed to be taken along the line x-y
Figure 3, and in each of the figures similar parts are denoted by similar letters
of reference.
My present improvements consist mainly in the construction and arrangement of
pipes and valves, preferably attached to the bydraulic main H, which may be of the
ordinary construction and fitted with the lateral curtain or apron L, below which
there is an opening M, near the bottom of the main, for the removal therethrough
of the deposited matters from the main. The gases from the ovens or retorts
ascend through the vertical pipes R R, pass along the connecting pipes S S¹,
whence they rise slightly, into the pipe T, through which they pass to the valve
box A, whence they descend, through the connections D D', into the hydraulic
main as indicated by Figure 1. The slight ascent of the gases just referred to,
from the pipe S¹ to T, takes place in the dip pipe P, where the direction of flow is
changed from horizontal to vertical and at right angles in a horizontal plane. This
double change of direction causes the thick, tarry, and other heavy matters carried
along by the gases to this point, to descend through the dip pipe P, and deposit in
the bottom of the hydraulic main H, whence they may be easily removed through
the opening M and the lateral cover O. The same opening permits also the
removal of any heavy substances which may be deposited from the gases from or
through the connections D D¹ and valve box.
The stop valve B may be constructed on the "bell" principle, and can be
worked up and down as required by means of its rod C, thus allowing the gases to
be cut off from the other ovens or retorts, or permitting them to be sent direct into
the main through the connections D D'. This valve will be closed when it is down
upon its seat, the annular cavity surrounding the valve, being filled with tar,
provides the necessary seal.
The outer portion of the hydraulic main H is provided with lids or covers O,
which serve to keep out any extraneous matters, and which, or some of which are
removed when the heavy, tarry, and other matters require to be removed from
the main as herein before described. Flanges and covers such as N, N', N', may
also be provided to provide for easy access to the interiors of the pipes, for cleaning
and other purposes.

page_text: The hydraulic seal K which is formed at the bottom end of the dip pipe P
prevents the escape of gas during cleaning and other operations.
It is preferred that the hydraulic main should be constructed in short sections, as
indicated by Figure 3, each section being connected to the gas main F by the
pipe G. This construction and arrangement of the hydraulic main greatly
facilitates work in case of repairs being necessary.
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. The general construction, arrangement, and combination of the hydraulic main
dip pipe and valve with a connection between the dip pipe and valve slightly rising
towards the latter, substantially as and for the purpose hereinbefore described with
reference to the accompanying drawings.
2. The construction and arrangement of the dip pipe and valve having a
connection parallel with the axis of the hydraulic main, substantially as and for
the purpose herein before described and as illustrated by the accompanying
drawings.
3. The herein before described construction and arrangement of the hydraulic
main in sections, each section being connected with the gas main by a separate
pipe, substantially as and for the purpose set forth and as illustrated by the
accompanying drawings.
Dated this 11th day of Anril A D 1895