Year: 1868

page_text: wheels used in air or water for propelling or driving ships, vessels, and
machinery. We construct a paddle wheel in the following manner :-
Upon the shaft or axis a boss is mounted which may work between
two strong beams, and to the boss radial arms are fixed which carry a
ring or hoop. The wheel also has other radial arms; they turn upon
pivots at their ends in the boss and the hoop of the wheel. On these
arms the float boards of the wheel are fixed; and also at the inner end
of each arm are two tappets at right angles, the one to the other, and
these as the wheel revolves travel between two guide cams, which may
be fixed to the beams on either side of the boss. The cams, just as
the float board is entering the water, turn the axis round, so that it
enters the water on the flat, or into a position to act effectively, and
as the float board emerges from the water the cams turn it on edge.
With a paddle wheel thus constructed only a very narrow paddle box
is required.
A similar construction is applicable to wheels to be driven by the
wind, the boards or sails being set edge to the wind on one side of
the wheel and in a position to be efficiently acted upon by the wind
on the other side of the wheel. The hoop or rim of the wheel
may advantageously be made of considerable weight, so that the
wheel may turn at a uniform velocity as near as may be, notwith-
standing any sudden variation there may be in the force of the wind
and in the work upon the wheel.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Richard Hill and John Francis D'Oyly in the
Great Seal Patent Office on the 17th October 1868.
Ihn A
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, RICHARD
HILL, of 54, Castle Street, in the City of Bristol, Auctioneer, and JOHN
FRANCIS D'OYLY, of 7, Oak Villas, Walthamstow, in the County of
Essex, Master Mariner, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eighteenth day of April, in the year
of our Lord One thousand eight hundred and sixty-eight, in the
thirty-first year of Her reign, did for Herself, Her heirs and successors,

page_text: 0
heels, &c.
us, the said Richard Hill and John Franci
agree
D'Oyly, Her special licence that we, the said Richard Hill and Joh
Francis D'Oyly, our executors, administrators, and assigns, or such
others as we, the said Richard Hill and John Francis D'Oyly, ou
5 executors, administrators, and assigns, should at
with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make,
any time
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 PADDLE AND OTHER WHEELS USED IN AIR OR WATER FOR
PROPELLING OR DRIVING SHIPS OR VESSELS, AND MACHINERY," upon the
condition (amongst others) that we, the said Richard Hill and John
Francis D'Oyly, our executors or administrators, by an instrument in
writing under our or their hands and seals, or under the hand and
5 seal of one of us or them, 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 John Francis D'Oyly, on behalf
of myself and the said Richard Hill, do hereby declare the nature of
the said Invention, and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following
statement thereof, that is to say :-
This Invention has for its object improvements in paddle and other
wheels used in air or water for propelling or driving ships or vessels
and machinery.
We construct a paddle wheel in the following
manner-Upon the shaft or axis a boss is mounted which may work
between two strong beams, and to the boss radial arms are fixed which
carry a ring or hoop. The wheel also has other radial arms, they turn
upon pivots at their ends in the boss and the hoop of the wheel. On
these arms the float boards of the wheel are fixed, and also at the inner
end of each arm are two tappets at right angles, the one to the other,
and these as the wheel revolves travel between two guide cams which
may be fixed to the beams on either side of the boss. The cams just
as the float board is entering the water turn the axis round so that it
enters the water on the flat or in a position to act effectively, and as
the float board emerges from the water the cams turn it on edge. With

page_text: a paddle wheel thus constructed only a very narrow paddle box is
required.
A similar construction is applicable to wheels to be driven by the
wind, the boards or sails being set edge to the wind on one side of
the wheel, and in a position to be efficiently acted upon by the wind
on the other side of the wheel. The hoop or rim of the wheel may
advantageously be made of considerable weight, so that the wheel may
turn at a uniform velocity as near as may be, notwithstanding any
sudden variation there may be in the force of the wind and in the work
upon the wheel.
And in order that our said Invention may be most fully understood
and readily carried into effect, we will proceed to describe the Drawings
Figure 1 18 a side view of a wheel constructed according to our
Invention; Figure 2 is a section of the same taken at the line A, A,
Figure 1. As represented in these Figures the parts are indicated of a
strength such that the wheel is suitable to work as a paddle wheel
partially immersed in water, either for propelling ships and vessels or
for driving machinery. For a windmill the construction would be
similar, but the parts should be made much lighter.
a, a, are two strong beams, which assuming that the wheel is to be
used for propulsion form part of the ship or vessel; 6 is the wheel shaft
which is rotated in any convenient manner, or is driven by the wheel,
as the case may be, and this shaft has upon it the boss c; d, d, arc
radial arms fixed in this boss, and carrying the ring or hoop e; f, f
are other radial arms capable of turning as on pivots in the boss c and in
the ring e; f, f, are float boards fixed on these arms; and f*, and ƒ³,
are tappets at right angles to each other with which each of the arms
is furnished. One of the arms f with the parts fixed to it is shown
separately at Figures 3; 9, 9, are guide cams fixed to the beams a; one
of them is shown separately at Figures 4, and they have each two
courses upon them, g' and g, corresponding respectively with the
tappets and ; they turn the arms one quarter round twice in
each revolution of the wheel, and as will readily be understood. These
turns may be made to take place by suitably forming the cams when