Improvements in Masted Vessels for Carrying Liquid, such as Petroleum Oil.
Year: 1891

page_text: Date of Application, 21st Oct., 1891
Complete Specification Left, 9th Apr., 1892-Accepted, 14th May, 1892
PROVISIONAL SPECIFICATION.
Improvements in Masted Vessels for Carrying Liquid, such as
Petroleum Oil.
We, HERBERT FINCH of Bycullah Park Enfield in the County of Middlesex,
Underwriter, and JAMES FORTESCUE FLANNERY, of 9 Fenchurch Street, in the
City of London, Consulting Engineer, do hereby declare the nature of this invention
to be as follows
:-
In ordinary vessels it is usual to step the masts in the keel in order that the
masts shall be able to sustain the great strain to which they are liable especially in
sailing ships, but in vessels for carrying liquid such as petroleum oil the masts
have been stepped in the tops or covers of the tanks, with the view of obviating
the danger resulting from leakage such as would occur if the masts were passed
through special holes in the tanks in which it would be impossible to make secure
joints between the masts and the metal of the tanks owing to the constant "working"
of the masts. Now according to our invention in order that the masts may be
firmly fixed and liability to leakage from the tanks be at the same time obviated
we step the masts in the keel or bottoms of the tanks, and arrange them to pass
down through the upward extensions forming the expansion tanks that rise
above the general level of the ordinary tops or covers of the tanks; or the
masts may be arranged within special tubes secured fluid tight at their junctions
to the tops of the tanks and made of sufficient diameter to allow of the lateral play
of the masts.
Dated this 21st day of October 1891
W. LLOYD WISE,
Per James G. Stokes,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Masted Vessels for Carrying Liquid, such as
Petroleum Oil.
We, HERBERT FINCH of Bycullah Park, Enfield in the County of Middlesex,
Underwriter, and JAMES FORTESCUE FLANNERY, of 9 Fenchurch Street, in the
City of London, Consulting 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 :-
In ordinary vessels it is usual to step the masts in the keel in order that the
masts shall be able to sustain the great strain to which they are liable especially
in sailing ships, but in vessels for carrying liquid such as petroleum oil, the masts
have been stepped in the tops or covers of the tanks, with the view of obviating
the danger resulting from leakage such as would occur if the masts were passed
through special holes in the tanks in which it would be impossible to make secure
joints between the masts and the metal of the tanks owing to the constant "working"
of the masts.
Now according to our invention in order that the masts may be firmly fixed and
liability to leakage from the tanks be at the same time obviated, we step the
masts in the keel or bottoms of the tanks, and arrange them to pass down through
the upward extensions forming the expansion tanks that rise above the general
level of the ordinary tops or covers of the tanks; as illustrated in longitudinal
[Price 8d 1

page_text: section in the accompanying drawing wherein 1, 1. are the masts; 2 is the keel of
the vessel in which the lower ends of the masts are stepped; and 3, 3, the upward
extensions or expansion tanks of the oil tanks 4 through which the masts
extend.
The masts instead of being stepped in the keel 2 may be stepped in the bottoms
of the tanks.
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 :-
In a masted vessel for carrying liquid such as petroleum, stepping the masts in
the keel of the vessel or in the bottoms of the tanks and arranging the masts to
pass down through the upward extensions forming the expansion tanks of the oil
tanks as and for the purpose specified.
Dated this 9th day of April 1899
J. FORTESCUE FLANNERY.
W. Lloyd Wise,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicants.