AN AQUEDUCT, TUNNEL OR MACHINE FOR CLEANSING DOOKS AND OTHER BASONS OF PENNED WATER AND CERTAIN IMPROVEMENTS UPON MACHINES OR MACHINERY (FOR WHICH I HAVE ALREADY OBTAINED LETTERS PATENT) FOR CLEANSING DRY AND OTHER HARBOURS RIVERS, CREEKS, BARS OF HARBOURS. AND VARIOUS OTHER USEFUL PURPOSES
Year: 1806

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, STEPHEN
HOOPER, of Walworth, in the County of Surrey, Gentleman, send greeting.
WHEREAS His most Excellent Majesty King George the Third did, by
His Letters Patent under the Great Seal of His United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Third day of May, in
the forty-sixth year of His reign, give and grant unto me; the said Stephen
Hooper, my executors, administrators, and assigns, His especial licence
that I, the said Stephen Hooper, my executors, administrators, and assigns,
during the term of fourteen years therein mentioned, should and lawfully
might make, use, exercise, and vend, within England, Wales, and the
Town of Berwick-upon-Tweed, my Invention of "AN AQUEDUCT, TUNNEL
OR MACHINE FOR CLEANSING DOOKS AND OTHER BASONS OF PENNED WATER AND
CERTAIN IMPROVEMENTS UPON MACHINES OR MACHINERY (FOR WHICH I HAVE
ALREADY OBTAINED LETTERS PATENT) FOR CLEANSING DRY AND OTHER HARBOURS
RIVERS, CREEKS, BARS OF HARBOURS. AND VARIOUS OTHER USEFUL PURPOSES,"
in which said Letters Patent there is contained a proviso obliging me, the
said Stephen Hooper, by an instrument in writing under my hand and seal,
to cause a particular description of the nature of my said Invention, and in
what manner the same is to be performed, to be inrolled in His Majesty's
High Court of Chancery within one calendar month after the date of the said
recited Letters Patent, as in and by the same (relation being thereunto had)
may more fully and at large appear,

page_text: NOW KNOW YE. that in compliance with the said proviso, I, the said
Stephen Hooper, do hereby declare that my said Invention, and the several
parts thereof, is and are described in manner following, that is to say:-
Fig. represents my moveable aqueduct, which works by suction. It
consists of a pipe composed of any suitable number of pieces jointed together.
one end of which, when in use, is fastened or applied to an hole in the sluice
gate or other similar part of the apparatus belonging to the wet dock or
place out of which mud or other impurities are required to be drawn. The
other end or extremity of the said pipe is formed of very short jointed pieces,
or a flexible pipe composed of tarpaulin or other fit material, supported within
by rings or other rigid pieces of horn, wood, metal, &c., to prevent the same.
from collapsing. In the use and application of the said aqueduct the interior
month or aperture is directed downwards inio the mud, and the pressure of
the superincumbent water forces the fluid and the mud to pass out through the
pipe; and for the more effectual completion of this purpose the mouth of the
said pipe is to be removed to different parts of the bottom. from whence it
will draw up the mud, notwithstanding the impediments of shipping and
other obstacles which would prevent and impede the effect of any other
apparatus.
Fig. 2 represents an improvement upon the tunnel for receiving water from
a sluice to scour away mud or soil, as described in my Patent, bearing date
the Fourth day of December, One thousand eight hundred. The said improve-
ment consists in the use of interior rings or other similar parts, which, at
the same time that they permit the pipe to be bended in any directions, do at
the same time prevent it from collapsing.
Fig. 3 exhibits an improvement in my water wheel, as described in my
Patent bearing date the Fifth day of February. One thousand eight hundred
and three. for working by a fall of water or otherwise. as in Fig. 4, in a
running stream. In both cases the water is introduced obliquely at the side
of the cylindrical vessel in which the wheel works, and my improvements
consist in the addition of upright float boards parallel to the axis of the
cylinder, and each of them inclined to the radius in such an angle as upon
trial shall or may be found best adapted to receive the impulse of the
stream.
In the upper Drawing of Fig. 4 a certain number of shutters or vanes are
shewn, which occupy the opening or hole through which the water enters into
the cylindrical vessel when the effect is produced simply by a current of water.
These when opened stand at a due obliquity, and when shut they close the
aperture. It is to be here noticed that a similar oblique channel (which for the

page_text: sake of perspicuity is not inserted in the Drawing) is made to receive the
stream when in a tide-way on the opposite side of the cylinder, which last-
mentioned channel is also provided with shutters or vanes, and that when one
of the said oblique channels is open to receive the stream, the other must be
kept shut.
Fig. 5 represents an improvement in the horizontal windmill described
Fig. 2, in the Specification of my said Patent, bearing date the Fifth day of
February, One thousand eight hundred and three. The said improvement
consists in the application of perpendicular floats to the main arbour of the
same description as those designated in Fig. 3, which are set at the proper
angle for receiving the wind, which is directed upon them by means of a
suitable number of fixed guide boards duly placed within the post and
valves of the octagon building described in the said last-mentioned Letters
Patent.
Fig. 6 represents an improvement on my back-water sluice for cleansing
harbours by the waves or swell of the sea, which is described in Fig. 1 of
my said Letters Patent, bearing date the Fifth day of February, One thousand
eight hundred and three. It consists of a vessel formed of parts which can
be taken asunder and framed together so that it may be fixed and secured in
any situation by means of weights, or posts, or piles, or cables and anchors, or
by any other suitable methods. It may be made of a triangular or any other
form which the local circumstances of the place may require, and one or more
or all of its sides must or may be provided with valves, as described in the said
last-mentioned Letters Patent, in order that the sea striking against the
same may be received and retained for the purpose of being conveyed to
that place or part which is required to be scoured or cleansed; and this last
effect is produced by means of the pipe or tunnel which appears in the
Drawing, and is to be constructed with the improvement delineated in Fig. 2.
And farther, it is to be observed, that I do prevent the water passing from out
under the sides of the framework here described by applying a rope net and
canvas over or upon it, or by various other means which are sufficiently
obvious.
Fig. 7 represents an improvement on the method described in my said last
mentioned Letters Patent for scouring away sand or loose soil, in order to
It consists of
remove ships which may be aground, and for other purposes.
a cylinder a, having therein a moveable axis, at each end of which is a set
of moveable vanes (b) resembling those of a common ventilator, and set
with opposite obliquities, so that when turned round under water they cause
the fluid to enter the cylinder, and pass out through the jointed pipe

page_text: SAM. C. Cox.
HR SLX.
STEPHEN HOOPER. (L.s.)
AND BE IT REMEMBERED, that on the same Third day of Junc, in the
year above mentioned. the aforesaid Stephen Hooper came before our Lord
the King in His Chancery, and acknowledged the Specification aforesaid.
and all and every thing therein contained, in form above written. And
also the Specification aforesaid was stamped according to the tenor of the
Statute in that case made and provided.
Tnrolled the same Third day of June, in the year above written.