Manufacture of Coal Gas.
Year: 1885

page_text: Manufacture of Coal Gas.
I JOHN HANSON of Elm Tree Hill, Bingley, in the County of York, Upholsterer,
do hereby declare the nature of my invention for IMPROVEMENTS IN THE CON-
STRUCTION OR ARRANGEMENT OF HYDRAULIC MAINS AND ASCENSION
CONNECTED THEREWITH FOR
MANUFACTURE OF COAL GAS, to be as
follows:-
THE
.
PIPES
This invention relates to certain improvements in the construction or arrange-
ment of Hydraulic Mains connected there with for the manufacture of Coal Gas,
the object of my invention being, to prevent the tar and other dense matter from
getting burnt or otherwise consumed, in the retorts, and thus preserve a most
valuable substance.
To attain the object stated above, I place the Hydraulic Main below the level of
the retorts and convert the ascension pipes into descension pipes, resting them
upon the Hydraulic Main, in which position they will stand, extending some
distance above the retorts, and each one be supplied at the top with a spray for
the condensing liquid: an inclined branch pipe will connect each descension pipe
to the neck of the retort it receives from.
The Gas on leaving the retorts will work its way down the inclined branch pipe,
into the descension pipe, when it will at once be acted upon by the condensing
liquid falling in a spray from the top; thus instead of a quanty of the tar and
other dense matter running into the retort, as it does do under the present system,
it will by this arrangement descend into the Hydraulic Main, and be run off from
there in the usual manner.'

page_text: Improvements in the Construction or Arrangement of Hydraulic
Mains and Ascension Pipes Connected therewith for the
Manufacture of Coal Gas.
I, JOHN HANSON of Elm Tree Hill Bingley in the County of York, Cabinet
Maker and Upholsterer. do hereby declare the nature of my invention for
IMPROVEMENTS IN THE CONSTRUCTION OR ARRANGEMENT OF HYDRAULIC MAINS
AND ASCENSION PIPES CONNECTED THEREWITH FOR THE MANUFACTURE OF COAL
GAS and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :—
My invention relates to certain improvements in the construction or arrange-
ment of Hydraulic Mains and Ascension pipes connected therewith for the
manufacture of coal gas. The objects of my invention being, to prevent the tar
and other dense matter from getting burnt or otherwise consumed, in the retorts,
and thus preserve a most valuable substance.
And also to enable the tar condensed from the gas, in any part of the condensing
apparatus to flow back into the Hydraulic Main, which tar may be heated to any
required temperature. To attain the objects stated above I place the Hydraulic
Main below the level of the retorts, and convert the Ascension pipes into descension
pipes resting them upon the Hydraulic Main, and each one be supplied at the top
with a spray for the condensing, purifying, or carburetting liquid, and inclined
branch pipes will connect each descension pipe to the retort it receives from.
The gas on leaving the retort will work its way down the inclined branch pipes
into the descension pipes, where it will at once come into contact with the con-
densing, purifying, or carburetting liquid, falling in the form of spray from the
top. Thus, instead of a quantity of the tar and other dense matter condensed from
the gas runing back into the retort as it does under the present system, it will by
this arrangement descend into the Hydraulic Main.
The end of each descension pipe is sealed by dipping into the liquid in the
Hydraulic Main. For the purpose of allowing the gas to make its exit from the
descension pipes into the Hydraulic Main without having to pass through the liquid
in the Hydraulic Main, I connect to each descension pipe and to the Hydraulic
Main, an Anti-Dip Valve.
My invention can be adapted to the back as well as the front of the retorts and
it can be arranged between two benches of. retorts kept. a sufficient distance apart
to allow of Hydraulic Main Ascension pipes and anti-dip valve being placed
between them. My invention will allow of the retort benches being placed on top
of each other.
And in order that my invention may be clearly understood I have annexed to
this my specification a sheet of drawings to illustrate the same, in which the same

page_text: СПОСІЯ UI ІСІстение шиттю the same parts in any of
occur.
Fig. 1. is a front elevation of a set of retorts with the Hydraulic Main E. and
descension pipes C. in their proposed positions.
Fig. 2 is an end view partly in elevation and partly in section.
Fig. 8. is the plan of the same.
The mouth-piece of each retort is cast with an inclined branch A as is also the
descension pipes so as to form a junction with each other, except those which
require a seperate length B. as shown in Fig. 1.
To each descension pipe C. and to the Hydraulic Main E I connect the anti-
dip valve D. Fig. 2. When the retorts are charged and the gas is passing from the
retorts down the descension pipes, the valve D. is lifted by the spindle I. into the
space J. the spindle is kept gas tight by the stuffing box N. Thus, instead of
the gas having to force a passage through the liquid in the Hydraulic Main E it
will pass freely from the descension pipes C. through the openings F. into the anti-
dip valve D. and down through the openings G. into the Hydraulic Main; when
the charge is being placed in the retorts the valve D. is closed as shown. There
being one descension pipe and one valve to every two retorts on each side of the
bench as arranged in Fig. 1. these two retorts will be charged at the same time,
the top retort I supply with a seperate descension pipe and valve which will enable
it to be charged without inconvenience.
Fig. 4 is a back elevation of a set of retorts with the Hydraulic Main E. and
descension pipes C. in their proposed position, at the back of the retorts, inclined
branch pipes A Fig. 5. connects each retort to its descension pipe, the gas passes
off from the back of the retorts, down the inclined branch pipes A. into the
descension pipes C., and then into the Hydraulic Main. Movable covers M. are
placed over openings in the descension pipes to enable the inclined. branch to be
cleared from any obstruction.
Fig. 5 is a cross section of two benches of retorts placed a sufficient distance
apart to enable the Hydraulic Main descension pipes and anti-dip valve to be fixed
between them, in this case the anti-dip valve D. connects each two opposite
descension pipes, and is placed between them as shown. One Hydraulic Main
does for two benches of retorts, instead of two required under the present system.
The gas passes off from the back of the retorts down the inclined branch pipes A.
into the descension pipes C.
The valve D. is opened in a similar manner to that described in Fig. 2. should
the valve not be opened, the gas will force a passage through the liquid in the
Hydraulic Main in the ordinary manner. The retorts which are connected
together by one valve will be charged at the same time, and, when they are being
charged, the valve is closed as shown.
Fig. 6, is a cross section of two benches of retorts, arranged as in Fig. 5. The
retorts in each bench which are opposite are connected to one descension pipe C.
the anti-dip valve D. is fixed in a horizontal position, to enable it to be opened
and shut from the front of the retort bench, by the spindle I which passes through
the retort bench to the front R.
All the retorts which are connected by one valve, are charged at the same time.
And when they are being charged, the valve is closed.
Each descension pipe I supply with a spray at the top for the condensing,
purifying, or carburetting liquid, to fall on the gas as it emerges from the retort
and will materially assist in preventing any dense matter from collecting at the
bends or to the sides of the pipes.
The tar which is condensed from the gas, in any part of the condensing
apparatus, is heated, and flows back into the Hydraulic Main, through the
opening K. it then passes under the plate O. through the opening L to the tar well.
P. is the outlet for the gas.

page_text: 5. 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,
5
1st The construction or arrangement of Hydraulic Mains, and Descension pipes
with inclined branch pipes connected therewith for the manufacture of coal gas as
hereinbefore described and illustrated.
.
14
2nd The arrangement of the Anti-Dip Valve for the purpose specified and
substantially as described and illustrated.