Improvements connected with Tanks used for Storage of Petroleum and other Inflammable Liquids.
Year: 1889

page_text: Date of Application, 18th June, 1889
Complete Specification Left, 18th Mar., 1890-Accepted, 19th Apr., 1890°
PROVISIONAL SPECIFICATION.
Improvements connected with Tanks used for Storage of Petroleum
and other Inflammable Liquids.
We JOSEPH STEWART, of Blackwall Iron Works, Isle of Dogs, Poplar in the
County of Middlesex, Engineer, THOMAS CHARLTON of 39 Brook Green Road
Hammersmith in the same County, Engineer, and JAMES CASEY of 10 Philpot Lane
in the City of London, Engineer, do hereby declare the nature of our said invention
to be as follows:-
Whereas tanks and other vessels used for storing and transporting volatile or
inflammable liquids have been constructed in such a manner that the increase or
reduction.in bulk of such liquids is compensated for by means of non-inflammable
gases or water contained in suitable chambers communicating therewith. When
water is so used, some of the volatile liquid becomes absorbed or mixed therewith, and
such water being afterwards discharged from the vessels, the absorbed liquids are
thereby wasted.
Now the object of our invention is to recover the volatile liquid from the water,
thus effecting an important saving, and at the same time deoderising and purifying.
the water, and removing all deleterious properties therefrom.
In carrying out our invention we construct an additional or subsidiary receiver or
accumulator connected with the tanks containing the oil or liquid stored within
the same, under pressure of water or in contact with water. The accumulator
receives the surcharged or waste water as it is drawn off from the tank. The water
is caused to pass outwards through a series of filtering mediums or apparatus, of any
ordinary form and materials, whereby the oil or other volatile or inflammable
liquids is or are separated from the water and such oil is thus recovered for further
use, the surplus filtered water being allowed to run away to waste.
By means of our improvements the water running to waste is rendered innocuous,
and may be run off into rivers or sewers without detriment to health or endangering.
life.
COMPLETE SPECIFICATION.
Improvements connected with Tanks used for Storage of Petroleum
and other Inflammable Liquids.
We, JOSEPH STEWART, of Black wall Iron Works, Isle of Dogs, Poplar, in the
County of Middlesex, Engineer, THOMAS CHARLTON, of 39 Brook Green Road,
Hammersmith, in the same County, Engineer, and JAMES CASEY of 10 Philpot Lane,
in the City of London, Engineer, do hereby declare the nature of our said invention
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
When
Whereas tanks and other vessels used for storing and transporting volatile or
inflammable liquids have been constructed in such a manner that the increase or
reduction in bulk of such liquids is compensated for by means of non-inflammable
gases or water contained in suitable chambers cominunicating therewith.
water is so used, some of the volatile liquid becomes absorbed or mixed therewith,
and, such water being afterwards discharged from the vessels, the absorbed liquids
are thereby wasted.

page_text: Now the object of our invention is to recover the volatile liquid from the water,
thus effecting an important saving, and at the same time deodorising and purifying
the water, and removing all deleterious properties therefrom.
In carrying out our invention we construct an additional or subsidiary receiver
connected with the tanks containing the oil or liquid stored within the same, under
prossure of water or in contact with water. This receives the surcharged or waste
water as it is drawn off from the tank. The water is caused to pass through a series
of filtering mediums or apparatus, of any ordinary form and materials, whereby the
oil or other volatile or inflammable liquids is or are separated from the water, and
such oil is thus recovered for further use, the surplus filtered water being allowed to
run away to waste.
By means of our improvements the water running to waste is rendered innocuous,
and may be run off into rivers or sewers without detriment to health or endangering
life.
And in order that our said invention may be particularly described and ascertained,
reference is hereby made to the accompanying drawing, in which one method of
carrying out our invention is shown in sectional elevation.
a is the oil reservoir. b is a water jacket entirely surrounding the oil reservoir.
This jacket is kept constantly filled with water by means of the supply c and cistern d,
the water passing through an opening e. A thorough circulation of the water is thus
secured in the jacket b. f is the oil supply pipe, connected with the pipes, f1 for
supplying the cil and f for drawing off, g being a two way cock for the purpose. h is
the additional receiver connected with the water supply by the pipe i, and with the
oil reservoir by the pipe k. Water is conveyed by the pipe i to the chamber m, below
the filtering trays n. The water thus gains access by the pipe k to the reservoir a;
the water occupying the lower part of the reservoir and the oil the upper part.
When the water is drawn away from the lower part of the reservoir a it passes
into the space ¹, and gains access to the space m by passing through the filtering
trays n or by the pipes (shown in dotted lines). The oil mixed with or absorbed by
the flowing water is thus separated from the water and prevented from entering the
chamber m; from which chamber it may be drawn off by the pipe o, or returned to
the supply by the pipe i.
The oil thus recovered floats upon the water and accumulates in the upper part of
the receiver h, from which it may be occasionally drawn off by the pipe p. r is an
overflow pipe to the cistern d.
In some cases we fit a safety valve as shown.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
1. In combination with safety vessels or reservoirs for storing petroleum and
other inflammable liquids, the application and use of filtering apparatus, substantially
as and for the purposes herein before described and illustrated by the drawing.
2. The improvements connected with tanks used for storage of petroleum and
other inflammable liquids, substantially as hereinbefore described and illustrated by
the drawing.
Dated 10th M 1000
GEO. DOWNING,
8, Quality Court, London, W.C., Agent for Applicants.