Improvements in Steam Ships or Vessels for Carrying Oil and other Cargo.
Year: 1892

page_text: Date of Application, 3rd Nov., 1892
Complete Specification Left, 3rd Aug., 1393-Accepted, 16th Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in Steam Ships or Vessels for Carrying Oil and
other Cargo.
'
We, FREDERICK LANE and WILLIAM MACANDREW, Shipowners and FRANCIS
MORRIS, Marine Superintendent, all of 26 Great St. Helens, in the City of
London, and JAMES FORTESCUE FLANNERY, of 9 Fenchurch Street, in the City
of London, Engineer, do 'hereby declare the nature of this invention to be as
follows:-
Oil tank steamers as heretofore constructed have not been suitable for carrying
cargo other than oil in bulk, or other cargo such as petroleum oil barrels or bundles
of tin plates not liable to injury by stowing in tanks defiled by oil. Now the object
of this invention is to adapt petroleum tank steamers to carry cargo other than oil
without injury on their return voyages thereby greatly increasing the range of
utility of such steamers. For this purpose we construct a vessel in such a way that
it shall be capable of carrying in its oil tanks a quantity of oil sufficient to lower it
in the water down to the proper load line, and shall furthermore afford independently
of its said tanks ample accommodation for carrying without contamination cargo of
other kinds when not laden with oil. This we effect as follows:-In lieu of
constructing the vessel to carry oil only to the level or about the level of the
external water line and restricting the storage room for oil above the sea level to
the expansion tanks these tanks are built so as to store the oil not only below the
level of the water line but also in the whole of the 'tween deck space above those
portions of the oil tank located in the lower part of the vessel the arrangement
being such that the necessary stowage room for the whole cargo of oil is obtained
within a reduced fore and aft length of the oil tanks and storage accommodation is
provided beyond the two ends of the oil tanks available for goods that would be
injured if stowed in tanks that had been defiled with oil. The vessel is constructed
with a breadth of beam sufficient to compensate for the higher centre of gravity of
the oil cargo so as to provide the necessary stability.
Dated this 3rd day of November 1892.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Steam Ships or Vessels for Carrying Oil and
other Cargo.
We, FREDERICK LANE, WILLIAM MACANDREW and FRANCIS MORRIS all of
26 Great St. Helens in the City of London, Ship-owners, and JAMES FORTESCUE
FLANNERY, of 9 Fenchurch Street in the City of London, 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:
Oil tank steamers as heretofore constructed have not been suitable for carrying
cargo other than oil in bulk, or other cargo such as petroleum oil barrels, or bundles
of tin plates, not liable to injury by stowing in tanks defiled by oil. Now the
object of this invention is to adapt petroleum tank steamers to carry cargo other
than oil, without injury, on their return voyages thereby greatly increasing the
range of utility of such steamers. For this purpose we construct a vessel in such a

page_text: way that it shall be capable of carrying in its oil tanks a quantity of oil sufficient
to lower it in the water down to the proper load line, and shall furthermore afford
independently of its said tanks, ample accommodation for carrying, without
contamination, cargo of other kinds when not laden with oil. This we effect as
follows In lieu of constructing the vessel to carry oil only to the level or about
the level of the external water line and restricting the storage room for oil above
the sea level to the expansion tanks, the oil tanks are built so as to store the oil not
only below the level of the water line but also in the whole of the 'tween deck
space above those portions of the oil tank located in the lower part of the vessel,
the arrangement being such that the necessary stowage room for the whole cargo
of oil is obtained within a reduced fore and aft length of the oil tanks and
storage accommodation is provided beyond the two ends of the oil tanks available
for goods that would be injured if stowed in tanks that had been defiled with oil.
In the accompanying drawing
Fig. 1 illustrates in longitudinal section and Fig. 2 in plan, so much of a steam
ship as is necessary to explain the nature of this invention.
A A' are two series of oil tanks arranged one above the other for a portion only
of the length of the vessel and formed by the lower deck B and a central longitudinal
vertical bulkhead or division B' the series A being above the lower deck B, so that
oil will be stored not only below the level of the water line, but also in the whole
of the 'tween deck space above the oil tanks located in the lower part of the vessel,
and the necessary storage room for the whole cargo of oil that is to say a quantity
of oil sufficient to lower the vessel in the water down to the proper load line will be
obtained within a reduced fore and aft length of the oil tanks. C and D are fore
and aft storage spaces, indicated by cross hatching that are formed or provided
beyond the fore and aft ends of the series of oil tanks by constructing and arranging
these tanks in the manner described. These storage spaces each of which may be
sub-divided in any suitable or desired manner serve to receive on a return voyage,
goods that would be liable to injury if placed in the tanks A A' which had
previously contained oil. E E are expansion tanks of which there may be one for
each superposed pair of oil tanks A A which would then be in communication with
each other. As will be obvious the oil tanks instead of being made separate from each
other may be in free communication with each other so that they form practically
one large tank. F and G are the boiler and engine rooms respectively, and H H
and H are spaces that ordinarily serve for the crew, for stores, and as a fore peak
tank respectively, as well understood.
To guard against contamination of the contents of the spaces C and D by leakage
from the oil tanks A A' or otherwise the said spaces are formed with independent
bulk heads C and D' respectively, and between each of these bulk heads, and the
adjacent oil tanks a space I is left forming a well in which oil that may leak or
overflow from the tanks can collect. The pump room is provided amid ship or
thereabout, as indicated at J and an oil well is formed below the same as shown
at K. A vessel provided with oil tanks arranged as described is constructed with
a breadth or beam sufficient to compensate for the higher centre of gravity of the
oil cargo so as to provide the necessary stability.
In other respects the vessel may be constructed in any ordinary or convenient
manner.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is: --
1. A steam ship or vessel for carrying oil and other cargo constructed with oil
tanks built so as to store the oil not only below the level of the water line but also
in the whole of the 'tween deck space above those portions of the oil tank or tanks
located in the lower portion of the vessel, the arrangement being such that the
necessary stowage room for the whole cargo of oil is obtained within a reduced fore
and aft length of the oil tanks and storage accommodation is provided beyond the

page_text: ends of the oil tanks available for goods that would be injured if stowed in tanks
that had contained oil substantially as herein described for the purpose specified.
2. A steam ship or vessel for carrying oil and other cargo constructed substan-
tially as herein before described with reference to and shewn in the accompanying
drawings for the purpose specified.
Deted this 3rd day of August 1802
J. FORTESCUE FLANNERY.
W. Lloyd Wise,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicants.