Improvements in the Hulls of Ships.
Year: 1897

page_text: Date of Application, 18th Jan., 1897
Complete Specification Left, 13th Oct., 1897-Accepted, 8th Jan., 1898
PROVISIONAL SPECIFICATION,
Improvements in the Hulls of Ships.
We OLAF MARIUS OLSEN of 17, Percy Road, Whitley (by the sea), Northumber-
land, Naval Architect and JOHN ADAM ARMSTRONG of 1 Sandhill, Quayside in
the City and County of Newcastle-on-Tyne, Ship Broker, do hereby declare the
nature of this invention to be as follows:-
The weather or top-deck to be sheared down over on the ship's sides and the ends of
the vessel and the deck between to have the usual round up. (The upper main
or weather deck to be sheered down at the ends; that is to say the highest point
of the deck-sheer being amidships and the lowest at the ends. The deck trans-
versely to have the usual round up or camber. The ships sides being carried up
to form bulworks, poop, bridge and forecastle in a continuous curve. The lowest
pount of the depth moulded will be at the ends of the vessels instead of midships.
It is propsed to apply this invention in the mercantile marine.
1007
OLAF M. OLSEN,
JOHN. A. ARMSTRONG.
We, OLAF MARIUS OLSEN late of 17 Percy Road, but now of 7 North Parade
Whitley in the county of Northumberland, Naval Architect and JOHN ADAM
ARMSTRONG of 1 Sandhill, Quayside in the city and county of Newcastle-on-Tyne,
Ship Broker 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:-
This invention relates to the hulls of ships and has for its object to so construct
or build a ship as to gain buoyancy and strength and increased cargo space over
ships of equal tonnage (as at present calculated) constructed in the usual manner.
According to our invention the upper main or weather deck is to be sheered down
at the ends that is to say the highest point of the deck sheer is amidships and the
lowest at the ends. The deck transversely to have the usual round up or camber.
The ships sides are carried up to form bulwarks, poop, bridge and forecastle in a
continuous curve, the lowest point of the depth moulded will be at the ends of
the vessel instead of amidships.
In the accompanying drawing in reference to which we will now describe the
invention we have shown somewhat diagramatically, a ship having the invention

page_text: applied thereto. Fig. 1 is a sectional elevation of a ship and Figs 2, 3 and 4 are
respectively, at a larger scale, midship, fore, and aft sections on the lines A. B.,
C. D., E. F. respectively.
A is the main or weather deck of the ship sheered down at the ends as shown
at a, a, Fig. 1., the highest point or points being at or about the centre or
amidships as at a. The deck in transverse section has the usual round up or camber
as shown in Figs. 2, 3, and 4. The ships sides or super-structures thereon are
carried up above the deck so as to form bulwarks, poop, bridge and forecastle as
shown respectively at c, d, e, f, in the Figs. and a light deck of wood or other
material may be provided at parts where desired as shown at D, an open rail such
as shown at may also be provided where desirable. It will be seen that by this
construction the lowest point of the moulded depth will be at or about the ends of
the ship instead of amidships as in vessels of ordinary construction or build, this
will be seen by the sections on lines C. D., E. F., shown in Fig. 3 and 4.
Owing to the building up of the sides in the manner stated the external appearance
of the ship need not be appreciably altered from the usual design.
The drawings shown are somewhat diagramatical as regards the particular
curve given to the deck which may in some cases be formed flat at parts of its length
and the arrangement of the bulwarks, poop, bridge and forecastle or other raised
parts which of course may be varied to suit the requirements and design of the vessel
to which the invention is to be applied.
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. The improvement is ships hulls consisting in forming the main or weather
deck with a longitudinal camber, or sheered down to the ends, the highest point of
the deck being at or about the centre or amidships and the lowest at or about the
ends substantially as and for the purposes set forth.
2. The improvements in ships hulls consisting in forming the main or weather
deck with a longitudinal camber, that is to say sheered down towards the ends
with the highest point or points of the deck at or about amidships and the lowest
at or about the ends, the sides of the ship or super-structures above them or the
deck being carried up to form bulwarks poop, bridge forecastle and so forth sub-
stantially as and for the purposes set forth.
Dated this 12th day of October 1897.