A NEW OR IMPROVED VERTICALLY-FLOATED PADDLE WHEEL
Year: 1866

page_text: LETTERS PATENT to Ivie Mackie MacGeorge, and Samuel MacGeorge, of
Carnmeen Estate, Newry, Ireland, for the Invention of "A NEW OR
IMPROVED VERTICALLY-FLOATED PADDLE WHEEL."
PROVISIONAL SPECIFICATION left by the said Ivie Mackie MacGeorge
and Samuel MacGeorge at the Office of the Commissioners of Patents,
with their Petition, on the 9th April 1866.
We, IVIE MACKIE MACGEORGE and SAMUEL MACGEORGE, of Carnmeen
Estate, Newry, Ireland, do hereby declare the nature of the said Invention
for "A NEW OR IMPROVED VERTICALLY-FLOATED PADDLE WHEEL," to be as
follows:-
The object of this Invention is to secure a vertical position to the floats
in all points of the circle (the centre of which is the centre of the paddle
wheel main shaft) through which they may revolve. This object is obtained
by the following means:-
1st, a shaft (which shaft we designate the float shaft) is attached to each
float, having one end resting in the inner or outer (with regard to the side of
the vessel) ring, whilst the other end projects through the opposite ring as far
as necessary.
2nd, to the projecting end of each of the float shafts (berein-before men-
tioned) is attached a lever, one end of which is made fast thereon, whilst in
the other end is fixed a pin, the centre of which may be placed in any point of
the circumference of the circle, having for its radius the distance between the

page_text: centres of the said lever, and for its centre the centre of the float shaft to which
the said lever is attached.
3rd, arms extending from a disc (or other suitable arrangement) have in
the end of each arm a bearing, which bearing is connected with the said pin
(in the levers herein-before mentioned) and revolves freely thereon.
4th, the centre of the said disc may be placed (respectively with regard to
centre of the pin in the levers herein-before mentioned) in any point of the
circumference of a circle, having for its radius the distance between the centre
of the paddle wheel main shaft and the centre of the said disc, and for its centre
the centre of the paddle wheel main shaft.
5th, the distance between the centre of the paddle wheel main shaft and
the centre of the float shafts (herein-before mentioned) must be the same as
the distance between the centre of the said disc, and the centre of the pin in
the levers (herein-before mentioned).
The advantages of the vertical floated wheel are,-
1st, the floats always retaining a vertical position very considerably decrease
what is called "back water."
2nd, greater speed is obtained from the vessel.
3rd, when the centre of the paddle wheel shaft is beneath the water by half
the width of float, the floats still exercise a more perfect propelling power than
the floats of ordinary wheels.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Ivie Mackie MacGeorge and Samuel MacGeorge in the Great
Seal Patent Office on the 8th October 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, IVIE MACKIE
MACGEORGE and SAMUEL MACGEORGE, of Carnmeen Estate, Newry, Ireland,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Ninth day of April, in the year of our Lord
One thousand eight hundred and sixty-six, in the twenty-ninth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said Ivie Mackie MacGeorge and Samuel MacGeorge, Her special licence that
we, the said Ivie Mackie MacGeorge and Samuel MacGeorge, our executors,
administrators, and assigns, or such others as we, the said Ivie Mackie Mac
George and Samuel MacGeorge, our executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and at all times

page_text: 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 "A NEW OR
IMPROVED VERTICALLY-FLOATED PADDLE WHEEL," upon the condition (amongst
others) that we, the said Ivie Mackie MacGeorge and Samuel MacGeorge,
our executors or administrators, by an instrument in writing under our,
or their, or one of their hands 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 we, the said Ivie Mackie MacGeorge and Samuel
MacGeorge, do hereby declare the nature of our said Invention, and in what
manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement thereof, that is to say:-
The object of this Invention is to secure a vertical position to the floats in all
points of the circle (the centre of which is centre of paddle wheel 'main shaft)
through which they may revolve. This object is obtained by the following
means:-
First, a shaft (which shaft we designate the float shaft) is attached to each
float, having one end resting in the inner or outer (with regard to the side of
the vessel) ring, whilst the other end projects through the opposite ring as far
as necessary.
Second, to the projecting end of each of the float shafts (herein-before men-
tioned) is attached a lever, one end of which is made fast thereon whilst in the
other end is fixed a pin, the centre of which may be placed in any point
of the circumference of a circle, having for its radius the distance from the
centre of said float shaft to the centre of the pin in levers (herein-before
mentioned).
Third, arms extending from a disc or eccentric (or other suitable arrange-
ment) have in the end of each arm a bearing, which bearing is connected
with the said pin (in levers herein-before mentioned) and revolves freely
thereon.
Fourth, the centre of the said disc may be placed (respectively with
regard to centre of pin in levers herein-before mentioned) in any point
of the circumference of a circle, having for its radius the distance from the
centre of paddle wheel main shaft to the centre of said disc.
Fifth, distance between the centre of the paddle wheel main shaft and the
centre of the float shafts (herein-before mentioned) must be the same as the

page_text: distance between the centre of said disc, and the centre of the pin in levers
(herein-before mentioned).
Sixth, the disc herein-before referred to may be placed on either side
of the paddle wheel.
The estimated advantages of the vertical floated wheel are,―
First, the floats always retaining a vertical position altogether do away
with what is called "back water," thereby allowing a greater speed to be
obtained from the vessel.
Second, when centre of the paddle wheel shaft is beneath the water by half
the width of float the floats still exercise a more perfect propelling power than 1
the floats of ordinary wheels.
Third, the vertically-floated wheel is especially efficient for tug boats.
In witness whereof, we, the said Ivie Mackie MacGeorge, and Samuel
MacGeorge, have hereunto set our hand and seal, this Fifth day of
October, in the year of our Lord One thousand eight hundred and
sixty-six.
IVIE MACKIE MACGEORGE. (L.8.)
SAMUEL MACGEORGE.
(LS.)