Improvements in or relating to Tanks for Storing Petroleum or other Liquids in Bulk.
Year: 1890

page_text: Date of Application, 8th Feb., 1890
Complete Specification Left, 24th Mar., 1890-Accepted, 26th Apr., 1890
PROVISIONAL SPECIFICATION.
Improvements in or relating to Tanks for Storing Petroleum or
other Liquids in Bulk.
A communication from abroad by E. M. VAILLANT, of 31, Stationsweg, Rotterdam,
in the Kingdom of Holland, Engineer (Wirth & Co.)
.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for Foreign
Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester, both in
the County of Lancaster, and 523, High Holborn, in the County of Middlesex, Civil
Engineer, do hereby declare the nature of this invention to be as follows:-
The petroleum tanks hitherto in general use had a carefully prepared foundation
which served as a support for the flat bottom of the tank; this hindered the
inspection of every part of the bottom resting thereon, so that the same could not
be repainted and could only be repaired with difficulty. In order to overcome
this difficulty, a network of masonry has sometimes been utilised as a foundation and
this made the construction very much more costly, and the traversing of the numerous
passages among the walls was not exactly easy..
This invention supersedes the above named foundation, and renders possible a
thoroughly unimpeded inspection of the bottom of the tank.
In carrying out this invention, the bottom of the tank is so constructed as to
support the tank on an annular outer ring or foundation, and to take off the
pressure of the petroleum in the interior of the circular space. The tank bottom
is convex or dished towards the middle where the pressure of the petroleum acts
downwards, and concave where it rests on the outer ring at the edge where the
pressure of the petroleum, or rather the re-active pressure of the support, is in an
upward direction.
A gallery is bored through the annular wall, through which access is obtained to
the open space between the tank bottom and the ground or the surface of the base of
the foundation.
Dated thin 7th IS 1000
WM. P. THOMPSON & Co.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Tanks for Storing Petroleum or
other Liquids in Bulk.
A communication from abroad by E. M. VAILLANT, of 31, Stations weg, Rotterdam,
in the Kingdom of Holland, Engineer (Wirth & Co.)
I, WILLIAM PHILLIPS THOMPSON F.C.S. M.I.M.E. of the Agency for Foreign
Patent Solicitors 6, Lord Street, Liverpool, and 6, Bank Street, Manchester both in
the County of Lancaster & 323 High Holborn in the County of Middlesex 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 petroleum tanks hitherto in general use had a carefully prepared foundation
which served as a support for the flat bottom of the tank; this hindered the
inspection of every part of the bottom resting thereon, so that the same could not
be repainted and could only be repaired with difficulty. In order to overcome this
difficulty, a network of masonry has sometimes been utilised as a foundation and
this made the construction very much more costly, and the traversing of the
numerous passages among the walls was not exactly easy.

page_text: This invention supersedes the above named foundation, and renders possible a
thoroughly unimpeded inspection of the bottom of the tank.
A tank constructed and arranged in accordance with this invention is shown in
side elevation on the accompanying drawing, the support therefor being shown in
section.
In carrying out this invention, the bottom of the tank A is so constructed as
to support the tank on an annular outer ring or foundation B and to take off the
pressure of the petroleum in the interior of the circular space. The tank bottom
is convex or dished towards the middle A where the pressure of the petroleum acts
downwards, and concave, as shown at C, where it rests on the outer ring at the
edge where the pressure of the petroleum, or rather the re-active pressure of the
support, is in an upward direction.
The bottom of the support is hollowed out into a circular depression D and finished
off with a low annular wall. The tank is placed on this without any further support,
no complicated foundation being necessary.
A gallery is bored. through the annular wall, through which access is obtained to
the open space between the tank bottom and the ground or the surface of the base of
the foundation.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is :-
A tank, applicable for use in storing petroleum or the like, the bottom whereof is
outwardly convex towards the centre but concave nearer its edge, the said tank being
supported solely upon an annular wall upon which the said concave portion rests,
substantially as and for the purposes set forth.
Dated this 22nd day of March 1890.
WM. P. THOMPSON & Co.,
Agents for the Applicant.