Improvements in Sliding Watertight Doors for Ships' Bulkheads and the like.
Year: 1895

page_text: Date of Application, 29th May, 1895
Complete Specification Left, 27th Feb., 1896-Accepted, 4th Apr., 1898
PROVISIONAL SPECIFICATION.
Improvements in Sliding Watertight Doors for Ships' Bulkheads
and the like.
I, HENRY MECHAN, of the Firm of Mechan and Sons, of Neptune Works,
60 Elliot Street, in the County of Glasgow, North Britain, Engineer, do hereby
declare the nature of this invention to be as follows, that is to say :-
My said invention has for its object to improve the construction and mode of
making of sliding watertight doors for ships' bulkheads and the like.
In carrying out my invention I have the main part of a door made of a plate
of steel stiffened by being stamped or embossed with curved indentations extending
across at one or more parts of the door, or in the form of a cross, circle, ellipse,
or other suitable form. And for fixing to the edges or borders of the steel plate
the usual bearing strips of gun-metal, brass, or other alloy or metal to work in the
guides of the door frame, I have holes punched in the edges of the steel plate,
and I place the steel plate in the mould in which the gun-metal or other bearing
strips are cast so that the strips will be cast in position on the steel plate, the
parts on the two sides being connected through the punched holes.
The improved construction is applicable for vertically moving, or horizontally
moving doors, or for doors moving in other directions.
Dated this Twenty-eighth day of May 1895.
EDMUND HUNT,
Applicant's Agent.
Improvements in Sliding Watertight Doors for Ships' Bulkheads
and the like.
I, HENRY MECHAN, of the Firm of Mechan and Sons, of Neptune Works,
60, Elliot Street, in the County of Glasgow, North Britain, 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, that is to say :-
My said invention bas for its object to improve the construction and mode of
making of sliding watertight doors for ships' bulkheads and the like.
In carrying out my invention I have the main part of a door made of a plate
of steel stiffened by being stamped or embossed with one or more curved indenta-
tions. I also "cast on to the steel plate the usual metal bearing strips by
placing the steel plate (in which I previously form holes) in the mould in which
the bearing strips are cast.
And in order that my said invention and the manner of performing the same
may be properly understood, I hereunto append two sheets of explanatory drawings,
to be hereinafter referred to, and showing two examples of watertight doors, as
made according to my invention.
Figures, 1, 2, and 3, on Sheet, 1, of the drawings are respectively a horizontal

page_text: section, a front elevation, and a vertical section of one example of my improved
watertight door, Figure, 3, being taken as at right angles to Figure, 2.
Figures, 4, and 5, are respectively an enlarged horizontal section, and an enlarged
front elevation of a part of the same example of watertight door.
Figures, 6, 7, and 8, on Sheet, 2, are respectively a horizontal section, a front
elevation, and a vertical section of a second example of watertight door.
In these drawings the same reference letters are used to mark the same or like
parts wherever they are repeated.
In both examples of my improved watertight door I have the main part of a
door made of a plate, A, of steel stiffened by being stamped or embossed with
curved indentations, B, extending across at one or more parts of the door, or such
indentations might be in the form of a cross, circle, ellipse, or other suitable form.
And for fixing to the edges or borders of the steel plate, A, the usual bearing
strips, C, of gun-metal, brass, or other alloy or metal to work in the guides, D,
of the door frame, E, I have holes, G, punched in the edges of the steel plate,
and I place the steel plate in the mould in which the gun-metal or other bearing
strips are cast, so that the strips will be cast in position on the steel plate, the
parts on the two sides being connected through the punched holes.
The improved construction is applicable for horizontally moving doors (such as
the first example shown in the drawings) or for vertically moving doors (such as
the second example shown in the drawings) or for doors moving in other
directions.
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 :-
:-
Making a sliding watertight door for a ship's bulkhead and the like to consist
of a metal plate, stamped with indentations, and having metal bearing strips cast
on to it substantially as and for the purposes hereinbefore described with reference
to the accompanying drawings.
Dated this Twenty-sixth day of February 1896.
EDMUND HUNT,
Applicant's Agent.