CERTAIN INVENTION OR IMPROVEMENT IN THE MAKING AND FORMING OF PADDLE WHEELS FOR THE USE OF VESSELS PRO- PELLED IN THE WATER BY STEAM OR OTHER POWER, AND APPLICATION TO PROPEL
Year: 1840

page_text: DAUBENY'S SPECIFICATION AND MEMORANDUM OF
ALTERATION.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
CHARLES DAUBENY, late of Windsor, in the County of Berks, but at present
residing at Boulogne sur Mer, in the Kingdom of France, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, the Twenty-fifth day of November, in the fourth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Henry Charles Daubeny, Her especial licence, full power,
sole privilege and authority, that I, the said Henry Charles Daubeny, my
exors, adiñors, and assigns, or such others as I, the said Henry Charles
Daubeny, should at any time agree with, and no others, from time to time
and at all times during the term of years therein expressed, should and
lawfully might make, use, exercise, and vend, within that part of the United
Kingdom of Great Britain and Ireland called England, Her Dominion
of Wales, and Town of Berwick-upon-Tweed, in such manner as to me,
the said Henry Charles Daubeny, my exors, adññors, and assigns, in my or
their directions, should seem mect, my "CERTAIN INVENTION OR IMPROVEMENT
IN THE MAKING AND FORMING OF PADDLE WHEELS FOR THE USE OF VESSELS PRO-
PELLED IN THE WATER BY STEAM OR OTHER POWER, AND APPLICATION TO PROPEL

page_text: VESSELS AND MILLS;" and that I, the said Henry Charles Daubeny, my exors,
admors, and assigns, should and lawfully might have and enjoy the whole
profit, benefit, commodity, and advantage from time to time coming, growing,
accruing, and arising by reason of the said Invention, for and during the term
of years therein mentioned, to hold, receive, and enjoy the same unto me, the
said Henry Charles Daubeny, my exors, adñiors, and assigns, for and during
and unto the full end and term of fourteen years from the date of the reciting
Letters Patent next and immediately ensuing, and fully to be complete and
ended, according to the Statute in such case made and provided; and in
which said Letters Patent is contained a proviso, that J; the said Henry
Charles Daubeny, should cause a particular description of the nature of the
said Invention, and in what manner the same is to be performed, to be
inrolled in Her Majesty's High Court of Chancery within six calendar months
next and immediately after the date of the said in part recited Letters Patent,
as in and by the same, reference being thereunto had, will more fully and at
large appear.
NOW KNOW-YE, that in compliance with the said proviso, I, the said
Henry Charles Daubeny, do hereby declare that the nature of my said Inven-
tion, and the manner in which the same is to be performed and carried into
effect, are particularly described and ascertained in and by the following
statement thereof, that is to say:-
My Invention consists, firstly, in an improved construction of a paddle
wheel, in which the floats or blades, being vertical instead of horizontal, as in
the ordinary wheels, are made to turn or feather themselves, like an oar in the
water, immediately after they have severally done their work in aiding the
propelling of the vessel, and thus save the dead weight usually caused by lifting
the back-water or by raising the paddle through the water.
Secondly, the wheels of my construction, being closer to the side of the vessel,
are stronger, and less cumbrous and weighty; and being made to revolve on
the shaft instead of being fixed solid, I propose, by means of an escapement, to
relieve my wheels from the force of the heaviest sea, and thereby avoid the risk
of damage from concussion, which the ordinary wheels are subject to.
Thirdly, wheels with feathering or collapsing blades, working in a close box
or case, on the principle of my construction, are applicable to all purposes for
which a mill wheel is required.
In the Drawings hereunto annexed I have shewn the whole of 1 my Invention.
And in order to make my Invention more clearly understood I will describe
particularly the points in which it consists.

page_text: Figure 1 shews a wheel attached to the vessel to be propelled. The wheel
a, a, consists of a box or centre b, b, into which are placed one of the ends of the
spindles or axis on which the blades c, c, are fixed, the spindles working in
the circumference of the box, and in the circumference a, a, of the wheel. On
the spindles near the ends working in the box or centre are short levers d, d,
working against a traverse e whilst in the water, by which the floats or blades
c, c, are made to turn on entering the water. On leaving the water, another
traverse f catches either the blade itself or another lever to be placed on the
spindle, and thereby turns the float or blade one quarter round, thus feathering
it, and keeping it in that position until it again enters the water.
Figure 2 is a side view of the wheel at work: In this, as before, b, b, is the
box or centre; c, c, the floats or blades of the wheel; d, d, the levers. Here
the float or blade, having just entered the water, is shewn in the action of
turning the floats or blades; and are turned, and performing their work
in the water; and the float or blade is shewn as turning or being about to
rise through the water edgeways, and thus the resistance of the back-water or
dead weight is avoided. It will be seen also by these two Figures, 1 and 2,
that the floats or blades, being vertical instead of horizontal, as in the ordinary
paddle wheel, have a. firmer hold of the water by going deeper into it. The
dotted line m, m, shews the depth at which an ordinary paddle. wheel would be
placed in the water.
.
Figure 3 shews the action of the levers d, d, and the traverses e.and.f, in.
turning the floats or blades. Here the float or blade is in the action of
turning, by the lever d coming in contact with the traverse e. The floats or
blades and are kept in a working position, and the float or blade in the
action of turning, in consequence of the lever d being just about to pass off
the traverse e, and the upper part of the blade (or a second lever, if such.
were used,) coming in contact with the traverse f.
Figure 4 shews a side view of a wheel at work, where the circumference a, a,.
of the wheel is dispensed with, and instead thereof the floats or blades work.
on spindles, passing through the circumference of the box, and thence to the
centre of it.
..
Figures 5 and 6 shew the lever d attached to one of the floats or blades
on a larger scale. Figure 5 shows the front view of it, and Figure 6 the
side view. .
Figures 7 shews, an advantage to be derived from the Invention, namely, that
of placing the paddle wheel altogether out of sight; a very desirable object. to
he obtained for vassals of war

page_text: If the blades or floats are intended to be formed like scoops, or partially
concave, which may be desirable for some purposes, it is evident the blades
or floats ought not then to revolve entirely round on their axis, but should
always meet the water with their concave surface; for this purpose I should
use a double traverse or grove for the levers to work in, that is to say, a
traverse on each side of the lever; this would allow the blade or float to make
one quarter of a turn only on entering the water, and on leaving the water to
return the same quarter turn. Where a double traverse or grove is used, the
levers had better be rectangular, as in the form of Figures 8 and 9, where
this rectangular lever is attached to the axis or spindle of the float c, and shewn
in a front and end view; as it will be desirable in some cases to make the
floats or blades feather or turn the water from the vessel, this kind of lever
and double grove will be there used. The straight levers may be used for
these purposes in a double traverse or grove, or as in Figure 7, where the
traverse f is placed at the opposite side of the wheel.
Another advantage I expect from my Invention is, that, my paddlo wheel
being of much less width than the ordinary wheels, they can be used in pairs
by attaching a second wheel outside the first on the same axis; and by
connecting the motion of the two with each other by gear, and by multiplying
the motion, the outer wheel is made to revolve faster than the inner in any
required rate, and thus very materially assist the speed of the vessel. An
impetus given by any power to the first wheel will operate upon the second
wheel as a mill wheel, and progressively assist to impel the vessel. Figure 10
shews a pair of these wheels thus connected for work.
Figure 14 shows the escapement to the paddle wheel. It consists of two
or more cogs n, n, let into the drum or box of the wheel, and traversing round
with it in a groove cut for that purpose in the flauch (Figure 12) or carrier
of the wheel. These cogs are fixed in a pivot to keep them in their places,
and as the axis and flaunch or carrier of the wheel moves round, by the power
of the steam or other moving power, the cogs present their ends n in oppo-
sition to an abutment o or end of the groove, and thus the wheel is moved by
the power reaching it through contact with these cogs. If the wheel is struck
by a heavy sea, such blow causes it to revolve faster than the steam or moving
power would have moved it, and consequently these cogs escape or revolve
with the wheel away from the abutment o in the grove, and pass freely on
until the steam power becomes the stronger, and, as it were, overtakes it.
When the abutment again catches the ends of the cogs, the bridge p, being
placed in the other groove, causes the cogs in passing over it to throw up

page_text: their ends n, so as to meet the abutments o, and thus are thrown into work
again.
Figure 12 shews the grooves in the flanch with the bridges p, p.
Figures 13 and 14 shew side views of the escape cogs in and out of
action.
Figure 15 shews both parts together. Here the abutment o is in contact
with the cog n, in the act of carrying round the box 6 of the wheel.
Figure 16 is a section of Figure 4, shewing the double traverses; 9, 9, e, and f,
the outer traverses; and h, h, e, and f, the inner ones.
In witness whereof the said Henry Charles Daubeny hath hereunto
set his hand and seal, tho Twenty-fourth day of May, in the year of
our Lord One thousand eight hundred and forty-one.
AND BE IT REMEMBERED, that on the Twenty-fourth day of May,
in the year of our Lord 1841, the aforesaid Henry Charles Daubeny came
before our said Lady the Queen in Her Chancery, and acknowledged the
Specification aforesaid, and all and everything therein contained and speci-
fied, in form above written. And also the Specification aforesaid was stamped
according to the tenor of the Statute made for that purpose.

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
CHARLES DAUBENY, late of Windsor, in the County of Berks, but at present
residing at Boulogne sur Mer, in the Kingdom of France, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Twenty-fifth day of November, in the fourth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto mé,
the said Henry Charles Daubeny, Her especial licence,'full' power, sole privi-
lege and authority, that I, the said Henry Charles Danbeny, my exors, adññiors,
and assigns, or such others as I, the said Henry Charles Daubeny, shall at any
time agree with, and no other, from time to time and at all times during the
term of years therein expressed, should and lawfully might make, use, exercise,
and vend, within that part of the United Kingdom of Great Britain and
Ireland called England, Her Dominion of Wales, and Town of Berwick-upon-
Tweed, in such manner as to me, the said Henry Charles Daubeny, my exors,
adiñors, and assigns, in my or their discretions should seem meet, my "CERTAIN
INVENTION OR IMPROVEMENT IN THE MAKING AND FORMING OF PADDLE WHEELS FOR
THE USE OF VESSELS PROPELLED IN THE WATER BY STEAM OR OTHER POWER, AND
APPLICABLE TO PROPEL VESSELS AND MILLS:" And whereas in pursuance of a
proviso for that purpose contained in the said Letters Patent I have caused a
Specification of my said Invention or Improvement to be enrolled in the High
Court of Chancery on the Twenty-fifth day of May, One thousand eight
hundred and forty-oue: And whereas I am desirous, for good and sufficient
reasons, to enter a Memorandum of Alteration of the Specification of that part
of my Invention herein-after mentioned, and have obtained for that purpose
the leave of Her Majesty's Attorney General, certified by his fiat and
signature, according to the form of the Statute in such case made and
provided:
KNOW YE, therefore, that I, the said Henry Charles Daubeny, do hereby
declare part of my said Invention or Improvement to be as follows, and that

page_text: it was omitted in the said Specification through error and inadvertence, namely,
that my said Invention or Improvement is equally applicable to the present
form of paddle wheels, or to wheels with horizontal floats, as to wheels with
vertical floats, as described in my said Specification, but which application of my
said Invention or Improvement, I am advised, is not covered or protected by the
said Specification so enrolled by me as aforesaid; although I intended it to be
so. And I, the said Henry Charles Daubeny, do further declare and protest
that the above Memorandum of Alteration does in no wise extend or purpose
to extend the exclusive right granted to me by the said Letters Patent.
In witness whereof, I, the said Henry Charles Daubeny, have hereunto
set my hand, the Fourth day of February, in the year of our Lord One
thousand eight hundred and forty-two.
7, G James S.
To the Clerk of the Patents of England.
This is to certify, that the above-named Henry Charles Daubeny has
applied to me for leave to enter with you the above-written Memorandum of
Alteration of part of the Specification of a certain Invention for which Letters
Patent were duly granted to him under the Great Seal of Great Britain, dated
at Westminster, the Twenty-fifth day of November, One thousand eight hun-
dred and forty, and the Specification of which was enrolled on the Twenty-fifth
day of May, One thousand eight hundred and forty-one; and on considering
the said application, I directed him to advertize his said Memorandum of
Alteration in the London Gazette, and in the Times and Morning Chronicle
newspapers; and such advertizements having been duly made in the said
Gazette and newspapers on the 17th and 21st of December last, and no
objection having been made to the said application, I have accordingly granted
leave to the said Henry Charles Daubeny to file his said Memorandum of
Alteration, pursuant to the Statute passed in the fifth and sixth years of the
reign of His late Majesty King William the Fourth, entituled An Act to amend
the Law touching Letters Patent for Inventions.
FRED. POLLOCK.

page_text: AND BE IT REMEMBERED, that on the Seventh day of February, in
the year of our Lord 1842, the aforesaid Henry Charles Daubeny came before
our said Lady the Queen in Her Chancery, and acknowledged the Memo-
randum of Alteration aforesaid, and all and everything therein contained and
specified, in form above written. And also the Memorandum of Alteration
aforesaid was stamped according to the tenor of the Statutes made for that
purpose.
Inrolled the Fourteenth day of February, in the year of our Lord One
thousand eight hundred and forty-two.