Improvements in and connected with Valves used in Plant for the Manufacture of Gas.
Year: 1898

page_text: Date of Application, 11th May, 1898-Accepted, 9th July, 1898
COMPLETE SPECIFICATION.
Improvements in and connected with Valves used in Plant for
the Manufacture of Gas.
I, 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 the construction and arrangement of the casing and
seating of the valve through which gases pass on their way from the coke-ovens
or retorts in which they are generated, to the gas main. These valves are at
present constructed with a liquid seal but it has been found in practice that
the cavity or chamber containing the liquid becomes so charged with solid matters
that at times the valve cannot be effectively operated until the matters have
been removed, which can only be done when the valve is out of action.
My present improvements have been designed with the object of enabling
the before mentioned solid matters to be removed from the cavity or seal cham-
ber at any moment, without in any way interfering with or interrupting the
working of the plant.
Means by which I may accomplish this are illustrated in vertical longitudinal
section by the accompanying drawing.
The gases from the retorts or coke-ovens arrive by the pipe S, and pass by
the pipe T and branch T¹ to the valve B in the valve chamber A. Thence, they
descend through the pipe D to the main H. With this arrangement of the
inlet pipes the "double change in the direction of motion of the gases at S, T,
causes heavy matters carried in the gases to this point, to drop through the dip
pipe E to the bottom of the main.
The chamber c, containing the liquid seal, opens at the bottom into an outer
trough or troughs dd, Consequently, the liquid enters and partly fills the
trough or troughs as well as the seal chamber. Inasmuch as the wall of
the valve box A extends below the surface of the liquid seal, it is impossible
for the gases to pass into the trough or troughs, and they may safely be left
uncovered. It is however advisable to cover the trough or troughs, as for example
by means of the segment plates e e, one or more of which may be provided with
a lifting handle h. As indicated by the drawing, an annular trough d is sup-
posed to be used and to be connected with the valve casing by means of the
wing walls w w. But the arrangement will be equally effective if the trough
does not entirely surround the valve chamber or if two or more separate troughs
are employed in such a manner in each case that the whole of the bottom of the
seal chamber is accessible and can be cleaned from the trough or troughs.
With this construction of the seal chamber and trough or troughs, it is only
necessary to remove a portion or the whole of the covers e, if they are used, when
any solid matters which may have collected in the seal chamber may be readily
removed without in any way interfering with the working of the apparatus.
There can therefor no longer be any reason why the valve B should not at all
times be capable of being easily and readily operated.

page_text: In substitution for the arrangement of the pipes shewn in the drawing, and
which forms no part of my present invention, the inlet pipes EST may be
omitted and the gases may be caused to enter the valve box A, direct through
the branch T.
"
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:-
_
In apparatus of the type set forth, the hereinbefore described construction
and arrangement of the seal chamber and trough or troughs communicating
therewith, substantially as and for the purpose set forth with reference to the
accompanying drawings.
Dated this 10th day of May, A.D., 1898.
W. E. HEYS & SON,
Agents for the Applicant.