Improvements in Apparatus for Utilizing the Motive Power of the Waves for the Propulsion of Ships, Boats, Rafts, and the like.
Year: 1893

page_text: Date of Application, 23rd Aug., 1893
Complete Specification Left, 22nd May. 1894-Accepted, 11th Aug., 1894
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Utilizing the Motive Power
of the Waves for the Propulsion of Ships, Boats, Rafts,
and the like.
I ALFRED ALEXANDER CLARKE, of 348, Hackney Road London, Gentleman,
do hereby declare the nature of this invention to be as follows:-
My invention relates to apparatus for utilising the motive power of the waves
for the purpose of propelling ships, boats, rafts and the like, and has for its object
the propulsion of ships, boats, rafts and the like, by means of the apparatus herein-
after described, by utilising the waves as the motive power.
In carrying my invention into practice, I arrange one, two, or more trays or
troughs, constructed of any suitable material and of convenient form, along either
side of the ship or boat. These trays or troughs are shallow and are fixed by
means of screws rivets, or in any other suitable manner, just above the line of
floatation, or the lower part of the same may rest upon the surface of the water and
they may be entirely or partially open at the top as required.
At the back of each tray or trough and at the lower part thereof is formed a
suitable opening or outlet pipe for the escape of the water, by means of which the
ship, boat or the like is propelled.
By means of the open or partially open trays or troughs the waves or surges of the
tide are enabled to fill the said trays or troughs and upon the wave subsiding and
passing away, the contents of the tray or trough is emptied through the orifice or
outlet pipe in the stern thereof, in an opposite direction to that in which it is desired
that the ship should travel.
The tray or trough may be formed continuously along each side and around
the front of the ship, and may be provided at suitable distances with orifices or
escape pipes, or with one orifice or escape pipe only, situated at the stern of the
ship.
In applying my invention to rafts or flat surfaces the trays or trough are sunk
into the thickness of the raft near the edges of the same and are filled by the waves
overlapping the edges of the raft and propelling it by the water escaping through
the outlet pipe as before described.
The aforementioned outlet pipes may be furnished at their lower extremity with
self acting outlet valves if required.
As my improvements are capable of some modifications without departing from
the principle thereof, I do not restrict myself to materials, dimensions or to the
precise form or placement of the said trays or troughs employed in carrying my
invention, into practice.
Dated this 23rd day of August 1893.
F. G. CASSELL,
Of Cassell & Co.,
22, Glasshouse Street, Regent Street, W.,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for Utilizing the Motive Power
of the Waves for the Propulsion of Ships, Boats, Rafts,
and the like.
I, ALFRED ALEXANDER CLARKE of 348 Hackney Road London E. Gentleman
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 apparatus for utilizing the motive power of the waves
for the purpose of propelling ships, boats, rafts and the like by means of the
apparatus hereinafter described, by utilizing the waves as the motive power.
In carrying my invention into practice I arrange one, two, or more trays or
troughs constructed of any suitable material and of couvenient form along either
side of a ship or boat. These trays or troughs are shallow and are fixed by means
of screws, rivets, or in any other suitable manner just above the line of floatation or
the lower part of the same may rest upon the surface of the water and may be
entirely or partially open at the top as required.
At the back of each tray or trough, and at the lower part thereof is formed a
suitable opening or outlet pipe or pipes, for the escape of the water by means of
which the ship boat or the like is propelled. By means of the open or partially
open tray or troughs the waves or surges of the tide are enabled to fill the said
tray or trough and upon the wave subsiding and passing away, the contents of the
tray is emptied through the orifice or outlet pipe in the stern thereof in an opposite
direction to that in which it is desired that the ship should travel..
The tray or trough may be formed continuously along each side and around
the front of the ship, and may be provided at suitable distances with orifices or
escape pipes or with one orifice or escape pipe only situated at the stern of the
ship.
In applying my invention to rafts or flat surfaces the trays or troughs are sunk
into the thickness of the raft near the edges of the same and are filled by the waves
overlapping the edges of the raft and propel it by the water escaping through the
outlet pipes as before described.
The aforementioned outlet pipes may be furnished at their lower extremity with
a self-acting outlet valve if required.
As my improvements are capable of some modifications without departing from
the principle thereof I do not restrict myself to materials, dimensions, or to the
precise form or placement of the said trays or troughs employed in carrying my
invention into practice.
In the accompanying drawing the figure represents one tray or trough with one
outlet pipe A, fixed by means of bolts, screws, rivets or in any suitable manner to
the side of a ship, boat, or the like.
B. D. represents the side of the said boat or vessel.
F F represents the line of motion of a wave.
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 :-
The application of apparatus in manner described whereby the undulating motion
of the waves may be utilized as a motive power.
Dated this 19th day of May 1894. .