MODE OF UTILIZING THE MOTION OF THE WAVES RELATIVELY TO THAT PRODUCED BY THEM ON THE SHIP FOR THE PROPELLING OF THE SAME, OR FOR OTHER USEFUL PURPOSES
Year: 1869

page_text: PROVISIONAL SPECIFICATION left by Peter Jensen at the Office of
the Commissioners of Patents, with his Petition, on the 4th
February 1869.-A communication from abroad by Jochum Knud-
sen, of 23, Nyhavn, in the Town of Copenhagen, in the Kingdom
of Denmark.
I, PETER JENSEN, of No. 2, Chiswell Street, Finsbury Square, in the
City of London, Consulting Engineer and Patent Agent, do hereby
declare the nature of the said Invention for "MODE OF UTILIZING THE
MOTION OF THE WAVES RELATIVELY TO THAT PRODUCED BY THEM ON THE SHIP FOR
THE PROPELLING OF THE SAME, OR FOR OTHER USEFUL PURPOSES," to be as
follows:-
The object of this Invention is to utilize the energy resulting in the
motion of the waves relatively to that of a ship rising and falling on the
same (the pitching and the rolling motion) for communicating motive
power derived from such energy to the propulsion of the vessel or other
useful and convenient purpose.
For utilizing the pitching of the vessel the stem of the same has a
so-called false stem some distance in advance of itself, strongly joined

page_text: to the keel at the bottom and to the stem at the top, by preference made
in one piece with the keel and the stem, and they forming together a
frame somewhat similar to the stern post of a screw steamer. Bracing
rods unite the false stem with the sides of the ship if required. In the
frame is an upright pillar fastened at top and bottom. Somewhat below
the water level the pillar passes through the centre line between two
flaps or systems of flaps, jointed together by a hinged joint running
fore and aft, fastened to or pivotting in the stem and false stem. At or
near the middle of the outer edge of each of these flaps, starboard and
larboard, a rod or system of rods is jointed on running up to, and also
jointed to a sliding sleeve or collar working freely on the aforesaid ver-
tical pillar. The power is communicated from this up-and-down working
sleeve in any convenient way, but the following is a simple arrange-
ment: To the sleeve is fastened a rod or systems of rods running up.
parallel to the pillar, or nearly so. This rod is at its upper end formed
as a tooth rack, which works in a corresponding tooth wheel fixed to a
shaft, from which by means of cranks, levers, or other convenient means
motion may be communicated in any desired way to some propelling
apparatus or other useful purpose, such as working the bilge pumps.
When the stem of the vessel is depressed the flaps are forced upwards
and opened by the pressure of the water, and when the stem rises again
the flaps fall and are forced down again, closing more or less, and by
their connection with the wheel shaft above named an oscillating motion
is communicated to the latter.
For utilizing the rolling motion a false keel below the real keel is
employed; it is by preference made deep in the middle of its length
and tapering towards stem and stern in a more or less rapid ratio. At
two or more places the false keel is joined to a longitudinal shaft or
shafts situated in the bilge of the hull and running fore and aft for the
greater or whole part of the length of the ship. Where joined the hull
is cut through from just above the keel to a little above the shaft, which
here is provided with proper glands and stuffing boxes to keep out the
water. Levers are fastened to the shaft in these open places of the same,
bent to clear the keel in all positions and fastened to the false keel,
which thus by these levers hangs on and swings with the shaft. When
the ship rolls to one side, the connection of the same with the false keel
being flexible, the latter does not follow the same motion, but is kept
back more or less by the resistance of the water, and thus the shaft

page_text: obtains an oscillating motion relatively to the ship. Any motive power
given to the false keel by the rolling of the ship may then be com-
municated to some propelling apparatus or other useful purpose.
The power obtained by either or both the above-named means may
be communicated in any desired way more or less directly; for instance,
by working hydraulic pumping machinery, drawing the water from
under the bottom of the vessel and forcing it out at the sides (the
so-called hydraulic propellers); or, for instance, by storing up the power
gained in the shape of compressed or rarified air, or both, in an air
vessel or air vessels, from which again motive-power engines driving
screw or other propellers may derive their power. Ships becalmed on
the ocean may thus for instance derive propelling power from the waves,
so long as there is a swell and a consequent rising and falling of the
ship by and on the waves.