IMPROVEMENTS IN PROPELLING NAVIGABLE VESSELS
Year: 1859

page_text: LETTERS PATENT to Joseph Bond Morgan, of Liverpool, in the County
of Lancaster, Cotton Broker, for the Invention of "IMPROVEMENTS IN
PROPELLING NAVIGABLE VESSELS."
Sealed the 24th June 1859, and dated the 1st January 1859.
PROVISIONAL SPECIFICATION left by the said Joseph Bond Morgan
at the Office of the Commissioners of Patents, with his Petition,. on
the 1st January 1859.
I, JOSEPH BOND MORGAN, of Liverpool, in the County of Lancaster, Cotton
Broker, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN PROPELLING NAVIGABLE VESSELS," to be as follows (that is to say) :-
This Invention consists in giving motion to navigable vessels by means of
a submerged vertical, flat, or nearly flat blade or vane, by preference, of a
square or nearly square form, which is mounted transversely between the two
outer ends of two horizontal arms in such a way that it is at liberty to
turn freely on its axis for about 45°. The horizontal arms carrying this
swiveling blade have an horizontal semicircular motion communicated to
them through a vertical driving shaft, to which one or both of the arms
are staked; the motion power being applied to the vertical driving
shaft by a rack and pinion crank, or other convenient mechanical arrange-
ment. The propelling blade with its supporting arms are placed in an

page_text: opening formed in the dead wood of the run of the vessel, or in framework
placed beyond the stern, or projecting forward from the bow, or placed below
the keel, or a duplicate set may be mounted in suitable framework on each
side of the vessel. When an horizontal semicircular or swinging motion
across the line of the vessel's track is given to the horizontal arms which carry
the swivelling blade, the vessel will be drawn in the direction of the centre of
the arch, formed thereby by the action of the back of the blade against the
water, the blade turning on its own vertical axis at each oscillatory motion of
its supporting arms, so as always to present the back of the blade to the
resistance of the water at an angle of about 45°, to a line radiating from the
axis of the horizontal arms.
When this Invention is applied to a vessel as an auxiliary power, it is
prefered to form the propelling blade in two parts, jointed together through
its vertical axis, so that when it is not in use on the horizontal arms upon
which it is mounted, being placed so as to point forward, the flaps or vanes
will fall for and aft, so as to prevent them impeding the vessel's way when
under sail.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Joseph Bond Morgan in the Great Seal Patent Office on
the 30th June 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
BOND MORGAN, of Liverpool, in the County of Lancaster, Cotton Broker,
send greeting.
.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the First day of January, in the year of our Lord
One thousand eight hundred and fifty-nine, in the twenty-second year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said Joseph Bond Morgan, Her special licence that I, the
said Joseph Bond Morgan, my executors, administrators, and assigns, or
such others as I, the said Joseph Bond Morgan, my executors, adminis-
trators, and assigns, should at any time agree with, and no others, from
time to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle of
Man, an Invention for "IMPROVEMENTS IN PROPELLING NAVIGABLE VESSELS,"

page_text: upon the condition (amongst others) that I, the said Joseph Bond Morgan,
my executors or administrators, by an instrument in writing under my, or
their, or one of their bands and seals, should particularly describe and ascertain
the nature of the said Invention, and in what manner the same was to be
performed, and cause the same to be filed in the Great Seal Patent Office
within six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said Joseph Bond Morgan, do hereby
declare the nature of my said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and' by the
following statement, to be as follows (that is to say)
This my said Invention consists in giving motion to navigable vessels, by
means of a submerged vertical flat or nearly flat blade or vane, by preference
of a square or nearly square form, which is mounted vertically between the
two outer ends of two horizontal arms, in such a way that it is at liberty to
turn freely on its axis from about 45° to 80°. The horizontal arms carrying
the swiveling blade have an horizontal, semicircular, or partial semicircular
motion communicated to them through a vertical driving shaft, to which one
or both of the arms are staked. The motive power I apply to the vertical
driving shaft by a rack and pinion, crank, or other convenient mechanical
arrangement. The propelling blade with its supporting arms are placed in an
opening formed in the dead wood of the run of the vessel, or in framework
placed beyond the stern, or projecting forward from the bow, or placed below
the keel, or a duplicate set may be mounted in suitable framework on each
side of the vessel. When an horizontal, semicircular, or partial semicircular,
or swinging motion across the line of the vessel's track is given to the
horizontal arms which carry the swiveling blade, the vessel will be drawn in
the direction of the centre of the arc formed thereby, by the action of the
back of the blade against the water, the blade turning on its own vertical axis
at each oscillatory motion of its supporting arms, so as always to present the
back of the blade to the resistance of the water, at an angle of about 45° to
a line radiating from the axis of the horizontal arms.
When I apply this my said Invention to a vessel as an auxiliary power, it
is prefered to form the propelling blade in two parts, jointed together through
5 its vertical axis, so that when it is not in use, on the horizontal arms upon
which it is mounted being placed so as to point forward, the flaps or vanes
will fall fore and aft, or nearly so, thereby preventing their impeding the
vessel's way when under sail.
That this my said Invention may be the more readily seen and understood,

page_text: .I have hereunto annexed Drawings in illustration of one modification of my
improved propeller for navigable vessels, like letters marked thereon having
reference to similar parts.
Figure 1 is a side view of the after part of a vessel fitted with my improved
propeller, seen at the centre of the starboard stroke; Figure 2, plan or top
view of the propeller in the position shown at Figure 1; Figure 3 shows the
position of the propeller at the end of the starboard stroke; Figure 4 exhibits
the position of the propeller at the centre of the port stroke; and Figure 5 is
a top view of the same at the full extent of the port stroke.
A, the propelling blade; B, vertical rod or axis, on which the propelling
blade swivels a given distance; C, horizontal arms upon D, the vertical
propelling shaft, which gives, motion to the propelling blade. In these
Drawings the propeller is shown as adapted to forward propultion only, but by
doubling the size of the opening in the dead wood, and mounting the vertical
driving shaft (D) in the centre thereof, the action of the propeller may be
reversed, as will be readily understood..
Having now fully described and ascertained the nature of this my said
Invention, and how I believe the same may be best carried into practical
effect, I wish it to be understood that I do not confine myself to the precise
details or dimentions herein-before described, as it will be readily seen that
the same may be variously modified without departing from the Invention;
but what I claim as new and my Invention is, the vertical horizontal
oscillating propeller for navigable vessels herein-before described, or any mere
modification of the same.
In witness whereof, I, the said Joseph Bond Morgan, have hereunto
set my hand and affixed my seal, this Twenty-ninth day of June, in
the year of our Lord One thousand eight hundred and fifty-nine.
JOSEPH BOND (L.s.) MORGAN.
Witness,
WILLIAM WALKER,
of 44, Castle Street, Liverpool.