Improvements in Apparatus for Propelling Ships.
Year: 1890

page_text: Date of Application, 9th June, 1890
Complete Specification Left. 9th Mar., 1891-Accepted, 25th Apr., 1891
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Propelling Ships.
1,ONESIME JENIN, Engineer, of Bulligny, in the Republic of France, do hereby
declare the nature of said invention to be as follows
This invention is carried into effect as follows:-
The water is admitted into one or more tubes or passages in the hull of the
vessel below the water line. The water is propelled in said tubes or passages by
screws or by turbines or waterwheels driven off the engine. The suction so created
will diminish the resistance offered by the water, to the ship or vessel passing
through it.
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one at each
In small vessels one channel or passage will be sufficient, in large ones it will be
preferable to provide say two passing through the hull "fore and aft
side. In some cases the passages may open at the sides of the vessel the outlet
being at the stern, or there may be say four passages two opening near the steam
and delivering the water at suitable points forward of the ships centre, whilst
other passages are placed so as to open behind the ships centre deliver at the
stern.
By this invention the power of the engines is better utilised as the water being
confined in the channels or passages allows the screws or the turbines or water-
wheels to be more effective.
1000
BERNHARD DUKES,
226, High Holborn, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Propelling Ships.
I, ONESIMÉ JENIN, of Bulligny, Department of Meurthe-et-Moselle, in the
Republic of France, 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 is based upon the theory of mechanical displacement of the water
by a vessel in motion and substantially consists of a tube arranged in the immersed
portion of the ship and open at both ends so that it naturally fills with water in such
à manner that as the vessel moves water is drawn in at the head and forced out at
the stern.
To promote suction at the head a turbine or water wheel is employed.
According to the tonnage of the ship any convenient number of tubes may be
combined as it is better to increase their number than to employ tubes of greater
d'ameter.
The invention will be best understood by reference to the accompanying
drawings.
In Fig. 2 the propelling apparatus is shown as consisting of two tubes symmetri-
cally arranged in relation to the axis of the vessel.
The inventor deems it best to cross them so that the water drawn in ahead on
This enables the course of
one side may be expelled astern on the opposite side.
the ship to be readily altered by simply disconnecting one of the propeller wheels
so that only one remains in operation.
The propellers proper consist of water wheels g and 1 (Figs. 1 and 2). Each
water wheel as shown in Figs 3 and 4 consists of an outer casing (Fig. 4) integral
with the tube or bolted thereto. This casing is provided with a journal e retained

page_text: in position by four cross-ties or arms a (Fig. 4). The propeller also comprises a
water wheel or cylinder fitted within and in close contact with the outer casing.
Within this cylinder (Fig. 3) are arranged eight helical wings or paddles d
connecting the central shaft to the rim or peripheral wall of the cylinder. Motion
is imparted to these propelling or water wheels by the engines of the vessel.
The diameter and number of the tubes should be proportionate to the size of the
vessel.
In large steam ships the arrangement shown in Fig. 1 should be employed in
preference so as to prevent the tubes from taking up too much space. Water is in
this case sucked in at the head of the vessel at rand forced out again on the
sides at ss, and at the stern water is drawn in at tt and discharged aft at v v¹ the
object attained being the same as in the first mentioned arrangement. The tube-
ends projecting beyond the sides of the vessel are flattened down so as to occupy
less space in the lateral direction and interfere less with easy navigation. To
protect the tubes they may be enclosed in watertight chambers which will act as a
safety appliance should any of the tubes burst.
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 :-
Apparatus for propelling ships characterised by the combination of tubes of any
desired shape which may be made serviceable as rudders and turbines or water
wheels or cylinders operated by suitable engines and co-operating with the said
tubes for the purpose of propelling the vessel substantially as described and
illustrated in the accompanying drawings.
Dated this 9th day of March 1891.
W. P. THOMPSON & BOULT,
Agents for the Applicant.