Improvements relating to the Propulsion of Vessels by Water-
Year: 1889

page_text: Date of Application, 22nd Jan., 1889
Complete Specification Left, 13th June, 1889-Accepted, 13th July, 1889
PROVISIONAL SPECIFICATION.
Improvements relating to the Propulsion of Vessels by Water-
I, PENDRILL CHARLES of 28
power.
Bryn-y-mor Terrace, Swansea, in the county of
Glamorgan, engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to moans for propelling vessels by water power.
It consists in the use, in conjunction with water engines of the Bailey or other
suitable type, of conical tubes extending upwards from the bottom of the vessel to
which they are rivetted or otherwise securely attached. The conical tubes, which are
open at their lower ends, are fitted at the upper ends with valves for controlling the
supply through them of water to the cylinders of the engines.
Regulating or reducing valves are employed to govern the pressure admitted to
the cylinders.
By the use of such tubes, fitted and arranged as above described, the vessel
acts as a hydraulic ram, her entire weight being available for producing water
pressure.
The apertures in the tubes by which the water enters them are protected by perforated
screens or guards. The water exhausted from the cylinders of the engines is discharged
into a tank whence it is pumped overboard.
Dated this 21st day of January 1889.
NICHOLAS WATTS,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements relating to the Propulsion of Vessels by Water-
power.
I, PENDRILL CHARLES, of 28 Bryn-y-mor Terrace, Swansea, in the County of
Glamorgan, 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 :-
This invention relates to means for propelling vessels by water power, the power
being derived from the vessel's displacement. The water is admitted to the vessel
through tubes rivetted or otherwise fixed to the bottom of the vessel and extending
upwards therefrom into the vessel. The tubes are preferably conical, the mouth or
lower end being widest. The mouths of the tubes are protected by perforated or
reticulated screens or guards.
At their upper ends the tubes are fitted with stop valves governing the flow of
water through pipes communicating with the cylinders of the engines which are
constructed after the manner of the Bailey and other similar engines. Reducing or
regulating valves are employed to adjust the pressure of water admitted to the
cylinders. The exhaust water from the engines is conveyed by exhaust pipes to
an exhaust tank which is placed sufficiently low in the vessel to prevent a back
pressure being exerted on the pistons. From the exhaust tank the water is pumped
overboard.
Referring to the accompanying sheets of illustrative drawings, Fig. 1 represents a
plan, Fig. 2 a longitudinal section, and Fig. 3 a transverse section of a part of a
vessel fitted with hydraulic engines and provided with the means for supplying
water power thereto in accordance with this invention.

page_text: Rivetted or otherwise firmly secured to the bottom of the vessel and open to the
water in which she floats are tubes A fitted at the upper end with stop valves B, as
seen more particularly in the detail drawing Fig. 4.
The tubes A, which are preferably conical and have the widest part at the lower
end, communicate by pipes C to the horizontally arranged cylinders E of the
engines, and when the stop valves B are open the water flows through the
pipes C to the cylinders, the pressure being governed by the reducing or
regulating valves D situated between the stop valves B and the cylinders E. The
tubes A are guarded by reticulated or perforated screens or guards A¹ secured over
their mouths.
The water enters the tubes A at a pressure_depending upon the displacement, and,
after passing through the valves B and D, actuates the engines in the usual
way. The exhaust water passes by pipes into the tank G which is situated
at a sufficiently low level in the vessel to prevent the creation of a back
pressure on the pistons of the engines. Air is admitted to the tank G by the
pipo J.
From the tank G the exhaust water is drawn off through the pipe K by the
centrifugal pump L driven by the hydraulic engine E¹.
The pump I discharges the water into the pipe M whereby it is conveyed away and
discharged overboard, as seen at Fig. 2.
E is a hydraulic engine similar to E' and is intended to serve as a donkey engine
for pumping or other purposes.
Both the engines E and E² are supplied with water power from the same source
and in the same manner as the engines E E by which the propellor shaft S is rotated
in its bearings P. The exhaust water from the engines E¹ and E' is delivered into
the tank G through the pipes F¹ F¹.
Upon the propellor shaft S is a drum N for use in loading or unloading cargo, and
when this is in use the shaft is disconnected at the coupling D.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, 1 declare that what I
claim is :-
1. In a vessel the use, in conjunction with suitable hydraulic engines of tubes
such as A secured to the bottom of the vessel and open below to the water she
floats in so that the water supply whereby the engines are actuated is admitted through
the said tubes, and the power is derived from the displacement of the vessel, as
herein before described.
2. In combination with the tubes A and suitable hydraulic engines, stop valves such
as B for governing the admission of the water, and reducing or regulating valves
such as D for regulating the pressure in the cylinders of the engines, substantially
as hereinbefore described.
Dated this 3rd day of June 1889.
NICHOLAS WATTS,
Applicant's Agent.