Improvements in Apparatus for Evaporating Oil or other Liquids, and Mixing the Vapours Produced with Coal Gas.
Year: 1896

page_text: Date of Application, 18th Mar., 1890
Complete Specification Left, 1st June, 1896-Accepted, 4th July, 1896
1050
Complete Specification Left, 1st June, 1896-Accepted, 4th July, 1896
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Evaporating Oil or other Liquids,
and Mixing the Vapours Produced with Coal Gas.
I, FREDERICK SOUTHWELL CRIPPS, of 27 Great George Street, Westminster,
London, Civil Engineer, do hereby declare the nature of this invention to be as
follows:-
The apparatus consists of an iron or steel vessel divided into three chambers, of
which the lowermost is termed the heating chamber, the one immediately above is
the mixing chamber, and the uppermost the oil arresting chamber.
But in order to render the nature of my invention clear I append a sheet of
illustrative drawings of which
Fig. 1 is a sectional elevation.
Fig. 2 is a sectional plan through the heating chamber showing the heating coil
hereafter referred to.
Fig. 3 is a sectional plan through the mixing chamber showing the evaporating
disc hereafter referred to.
The heating chamber H and the mixing chamber M are separated by a division
plate D termed the evaporating disc. The mixing chamber M and the oil arresting
chamber A are separated by a sieve or grid G upon which rests the coke or other
scrubbing material C in the arresting chamber A.
The pipe conveying the oil or other enriching liquid enters the lower part of
the heating chamber H and then coils round forming a volute V gradually rising,
until it enters the evaporating disc D at the point E where the oil is delivered and
flows outwards over the surface of the evaporating disc D, being made to travel
backwards and forwards a long distance over the heated surface which drives off
the vapour.
The outlet pipe P for any surplus oil, leads from the evaporating disc D to a
syphon F outside, from whence it can be returned to the oil store tank, if
required.
The pipe S admits steam of low pressure into the heating chamber H for heating
the oil in the volute V and driving off the vapour by heating the disc D. The
condensation water is drained away by the pipe W.
The inlet pipe I conveying the coal gas to be enriched, passes through the
bottom of the vessel, the heating chamber H and the evaporating disc D, and
delivers the gas direct into the mixing chamber M, where it is thoroughly mixed
with the oil vapour. The enriched gas then passes through the grid G and into the
oil arresting chamber A where any oil held in suspension and not permanently
mixed with the gas, is taken up by the scrubbing material C. in the oil arresting
chamber A. The gas then passes away by the outlet at the top T. To afford
access to the interior of the apparatus manlids L are provided.
The method of operating the apparatus is as follows:-
By opening the cock of the sight feed J, oil is admitted into the coil V and
thence on to the evaporating disc D where it passes backwards and forwards along
circular passages until it reaches the outlet where the unvaporized oil (if any)
escapes to the syphon F by means of the pipe P.
Low pressure steam (such as the exhaust of a steam engine) is admitted into the
steam space H warming the oil in its passage through the coil V and vaporizing it

page_text: as it flows over the evaporating disc D, while at the same time the valves on the
gas mains N N are opened and B shut, thus compelling the whole volume of the
coal gas to pass through the apparatus. If desired, however, by partly opening
the bye-pass valve B the quantity of gas passing through the apparatus can be
regulated to any extent.
The oil vapour is intimately incorporated with the gas in the mixing chamber M
and then passes through the grid G and the coke C above. Should there be any
excess of oil in the vapour it will be arrested by the coke or other scrubbing
material C in the oil arresting chamber A. The enriched mixture will then
leave the apparatus as a permanent gas and will not deposit the enriching materials
in the gas mains.
Provision is made at the top of the vessel for injecting oil and washing out
deposits if necessary.
Dated this Seventh day of March 1896.
Improvements in Apparatus for Evaporating Oil or other Liquids,
and Mixing the Vapours Produced with Coal Gas.
I, FREDERICK SOUTHWELL CRIPPS, of 27, Great George Street, Westminster,
London, Civil 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:-
The apparatus consists of an iron or steel vessel divided into three chambers, of
which the lowermost is termed the heating chamber, the one immediately above is
the mixing chamber, and the uppermost the oil arresting chamber.
But in order to render the nature of my invention clear I refer in the following
description to the sheet of illustrative drawings left with the Provisional
Specification, and of which
Fig. 1 is a sectional elevation.
Fig. 2 is a sectional plan through the heating chamber showing the heating coil
hereafter referred to.
Fig. 3. is a sectional plan through the mixing chamber showing the evaporating
disc hereafter referred to.
The heating chamber H and the mixing chamber M are separated by a division
plate D termed the evaporating disc. The mixing chamber M and the oil arresting
chamber A are separated by a sieve or grid G upon which rests the coke or other
scrubbing material C. in the arresting chamber A.
The pipe O conveying the oil or other enriching liquid enters the lower part of
the heating chamber H and then coils round forming a volute V gradually rising,
until it enters the evaporating disc D at the point E where the oil is delivered and
flows outwards over the surface of the evaporating disc D, being made to travel
backwards and forwards a long distance over the heated surface which drives off
the vapour.
The outlet pipe P for any surplus oil, leads from the evaporating disc D to a
syphon Foutside, from whence it can be returned to the oil store tank, if
required.
The pipe S. admits steam of low pressure into the heating chamber H. for heating
the oil in the volute V and driving off the vapour by heating the disc D. The
condensation water is drained away by the pipe W.
The inlet pipe I conveying the coal gas to be enriched, passes through the bottom
of the vessel, the heating chamber H and the evaporating disc D, and delivers the

page_text: gas direct into the mixing chamber M, where it is thoroughly mixed with the oil
vapour. The enriched gas then passes through the grid G and into the oil
arresting chamber A where any oil held in suspension and not permanently mixed
with the gas, is taken up by the scrubbing material C. in the oil arresting
chamber A. The gas then passes away by the outlet at the top T. To afford
access to the interior of the apparatus manlids L are provided.
The method of operating the apparatus is as follows:--
By opening the cock of the sight feed J, oil is admitted into the coil V and
thence on to the evaporating disc D where it passes backwards and forwards
along circular passages until it reaches the outlet where the unvaporized oil
(if any) escapes to the syphon F by means of the pipe P.
Low pressure steam (such as the exhaust of a steam engine) is admitted into the
steam space H primarily heating the oil in its upward passage through the coil V
and then vaporizing it as it flows over the evaporating disc D, while at the same
time the valves on the gas mains N N are opened and B shut, thus causing the
whole volume of the coal gas to pass through the apparatus without the employment
of any injectors or other special power for forcing the gas through the said
apparatus the general practice at the present time being to force only a small
portion of the coal gas to be enriched through the enriching apparatus and then to
squirt it into the main body of the gas. If desired, however, by partly opening
the bye-pass valve B, the quantity of gas passing through my apparatus can be
regulated to any extent.
The oil vapour is intimately incorporated with the gas in the mixing chamber M
and then passes through the grid G and the coke C. above. Should there be any
excess of oil in the vapour it will be arrested by the coke or other scrubbing
material C in the oil arresting chamber A. and thence returned to and re-evaporated
from the evaporating disc D. The enriched mixture will then leave the apparatus
as a permanent gas and will not deposit the enriching materials in the gas mains.
Provision is made at the top of the vessel for injecting oil or other liquids and
washing out deposits if 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. Providing for the passage of the whole volume of gas to be enriched through
the apparatus without the special aid of injectors substantially as hereinbefore
described.
2. The combination of a coil and evaporating disc so that the liquid to be
vaporized is primarily heated when passing in an upward direction through the coil
in the heating chamber containing low pressure steam before it overflows on to the
evaporating disc above, substantially as hereinbefore described and illustrated.
3. The adoption of an oil arresting chamber, substantially as and for the purpose
herein set forth.
4. The combination of all the foregoing processes in one vessel.
Dated this Thirtieth day of May 1896.
FREDERICK SOUTHWELL CRIPPS.