A METHOD OF SAVING WATER IN MECHANICAL AND HYDRAULIC PURPOSES
Year: 1812

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, PETER
NOUAILLE, of Greatness, near Seven Oaks, in the County of Kent, Esquire,
send greeting.
WHEREAS His most Excellent Majesty King George the Third did, by
His Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Thirty-first day of
October, in the fifty-third year of His reign, give and grant unto me, the said
Peter Nouaille, my exors, adññors, and assigns, His especial licence, full power,
sole sole privilege and authority, that I, the said Peter Nouaille, my exors,
admiors, and assigns, should and lawfully might, during the term of years therein
mentioned, make, use, exercise, and vend, within England, Wales, and tho
Town of Berwick-upon-Tweed, my Invention of "A METHOD OF SAVING
WATER IN MECHANICAL AND HYDRAULIC PURPOSES;" in which said Letters
Patent there is contained a proviso that if I, the said Peter Nouaille, shall
not particularly describe and ascertain the nature of my said Invention, and
in what manner the same is to be performed, by an instrument in writing
under my hand and seal, and cause the same to be inrolled in His Majesty's
High Court of Chancery within six calendar months next and immediately
after the date of the said Letters Patent, that then the said Letters Patent,
and all liberties and advantages whatsoever thereby granted, shall utterly cease,
determine, and become void, as in and by the same (relation being thereunto
had), may more fully and at large appear.

page_text: NOW KNOW YE, that I, the said Peter Nouaille, do hereby declare that
my said Invention is described in manner following, that is to say:-
In my new method of applying water to water wheels I cause it to com-
mence its action upon a point of the wheel's circumference which is about fifty-
three degrees distant from the vertex or the highest point thereof, instead of
applying it at the top of the wheel as heretofore commonly practised for over-
shot wheels. By these means I can have the advantages of a large wheel in
situations where the fall would only allow of a smaller if the water was applied
at the top. Thus, if there be a perpendicular of twelve feet I cause a wheel of
15 feet diameter to be made, and of course the water must be made to act
upon it at a height of twelve feet, which is three feet perpendicular below the
top of the wheel, and at about fifty-three degrees from the top, measured
round its circumference as above stated. I make the pentrough, which brings
the water to the wheel, of such a form that it delivers the water from the
bottom of it through the floor, and is directed at such an angle as to fall into
the buckets nearly in the direction of the wheel's motion, which will be at an
angle of seventy-five degrees with the horizon. The shuttle or gate slides
upon the floor of the trough so as to cover the aperture and determine the
quantity of water to be let out upen the wheel. The exact manner of carry-
ing the principle into effect is particularly explained by the annexed Draft,
which is a vertical section of a water wheel on my improved plan. In this the
dotted line A, A, represents the level of the water at its full head, and B the
level of the tail water, therefore A, B, is the extreme fall. A, C, is the deptl
of the water in the pentrough. Now, instead of the common practice of
making a wheel of the diameter equal to B, C, I make the wheel D, E, F, G,
one fourth larger than B, C, then the water will be delivered upon it at the
point E. The floor C of the pentrough G, H, L, does not come up to meet the
end H thereof, but leaves a small space through which the water issues in the
direction of the dotted line I, I, to the buckets of the wheel. The breadth of
this
space
is determined by the shuttle K, which lays flat upon the floor of the
pentrough and slides over the aperture. It is regulated by means of a lever N
acted upon by a screw rack or other adjustment at M, and the water is thus
delivered in a very thin and regular sheet into the buckets.
In witness whereof, I, the said Peter Nouaille, have hereunto set my
hand and seal, this Twenty-eighth day of April, in the year of our
Lord One thousand eight hundred and thirteen.
PETER NOUAILLE. (L.s.)

page_text: AND BE IT REMEMBERED, that on the Twenty-eighth day of April, in
the year of our Lord 1813, the aforesaid Peter Nouaille came before our said
Lord the King in His Chancery, and acknowledged the Specification afore-
said, and all and every thing therein contained and specified, in form above
written. And also the Specification aforesaid was stampt according to the
tenor of the Statute made for that purpose.
Inrolled the Twenty-eighth day of April, in the year of our Lord One
thousand eight hundred and thirteen.