A NEW HYDRAULIC PUMP OR MACHINE, BASED ON THE CENTRIFUGAL PRINCIPLE, FOR THE PURPOSE OF RAISING, FORCING, OR EXHAUSTING (EVEN MUDDY) WATERS OR OTHER FLUIDS, AND APPLICABLE TO THE WANTS OF AGRICULTURE, INDUSTRY GENERALLY, AND TO THE SALVAGE OF SHIPS
Year: 1854

page_text: LETTERS PATENT to Eugène Mayeur, of 62, Tredegar Square, London
acting as Agent for Thomas Piatti, of Port Maurice, in the Sardinian
States, for the Invention of "A NEW HYDRAULIC PUMP OR MACHINE, BASED
ON THE CENTRIFUGAL PRINCIPLE, FOR THE PURPOSE OF RAISING, FORCING, OR
EXHAUSTING (EVEN MUDDY) WATERS OR OTHER FLUIDS, AND APPLICABLE TO THE
WANTS OF AGRICULTURE, INDUSTRY GENERALLY, AND TO THE SALVAGE OF SHIPS."
-A communication from the aforesaid Thomas Piatti.
PROVISIONAL SPECIFICATION left by the said Eugène Mayeur at the
Office of the Commissioners of Patents, with his Petition, on the
30th December 1854.
I, EUGÈNE MAYEUR, of 62, Tredegar Square, London, acting as Agent for
Thomas Piatti, of Port Maurice, in the Sardinian States, do hereby declare
the nature of the said Invention for "A NEW HYDRAULIC PUMP OR MACHINE,
BASED ON THE CENTRIFUGAL PRINCIPLE, FOR THE PURPOSE OF RAISING, FORCING,
OR EXHAUSTING (EVEN MUDDY) WATERS OR OTHER FLUIDS, AND APPLICABLE TO THE
WANTS OF AGRICULTURE, INDUSTRY GENERALLY, AND TO THE SALVAGE OF SHIPS," to
be as follows:-
The adjoining design represents, Figure 1st, the vertical plan of the machine;
and Figure 2, the form of the diaphragm. A represents the vertical shaft,
rounded at its base, in an oval or oblong shape, which supports the whole
apparatus, and which rests and turns or revolves freely on its pivot in

page_text: the socket B; B, socket, shaped so as to fit the pivot of the shaft A;
C, apparatus composed of several acute-angled cones, united from the top
to the bottom by the diaphragms D, and having in each cone a pentagonal
division, by means of which are formed angular cells or chambers, supported
by the square rod E; D, diaphragms (for the shape of which see Fig. 2),
fixed on several points of the circumference of the cones C, binding these
together, and forming the angular chambers; E, square rod, supporting the
apparatus C, fixed at one end to the main shaft A, and at the other to the
interior cones; F, ponderating mass, of a conoidal shape, placed in the interior
of the apparatus, and thro' which the vertical shaft is carried and fixed;
this part further supports the plates G. G, plates fixed at equal distances on
the angles of a pentagonal division of the circumference of the mass F;
H, section of a sphere, of which the convex part is in the interior of the
machine and rests on the mass F; I, circular plate, serving as a cover to, and
closing the upper part of, the apparatus.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Eugène Mayeur in the Great Seal Patent Office on the
30th June 1855.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EUGENE
MAYEUR, of 62, Tredegar Square, London, acting as Agent for Thomas Piatti,
of Port Maurice, in the Sardinian States, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirtieth day of December, One thousand eight
hundred and fifty-four, in the eighteenth year of Her reign, did, for
Herself, Her heirs and successors, give and grant unto me, the said Eugene
Mayeur, Her special license that I, the said Eugene Mayeur, my executors,
administrators, and assigns, or such others as I, the said Eugene Mayeur,
my executors, administrators, and assigns, should at any time agree with,
and no others, from time to time and at all times 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, the Invention of "A NEW HYDRAULIC PUMP OR
MACHINE, BASED ON THE CENTRIFUGAL PRINCIPLE, FOR THE PURPOSE OF RAISING,
FORCING, OR EXHAUSTING (EVEN MUDDY WATERS) OR OTHER FLUIDS, AND APPLICABLE
TO THE WANTS OF AGRICULTURE, INDUSTRY GENERALLY, AND TO THE SALVAGE OF

page_text: His placed, the extremities of which rest on the upper part of the diaphragm
D, which also supports the cover I. This cap H and the cover I stop up
the empty space in the middle of the machine, and causes the water to
rise & egress, as shewn by the arrows I¹, instead of running over at the
upper part of the apparatus. At the lower part of the shaft A is a pivot,
varying in form, according to the socket in which it is to be placed. The
machine may be constructed of wood or metal. This improved hydraulic
pump has this peculiar advantage, that it may be employed in very deep
waters; and from its simple construction, not having any part liable to be put
out of working order, will be equally applicable in shallow and even muddy
waters.
Having thus described the nature of the Invention communicated to me,
and the manner of carrying the same into execution, I wish it to be understood
that I do not confine myself to the precise details herein laid down; but what
I claim is, the general arrangement and construction of centrifugal pumps
for the purposes herein-before described, and referred to in the Figures of
the Drawing.
In witness whereof, I, the said Eugene Mayeur, have hereunto set my
hand and seal, this Twenty-eighth day of June, in the year of our Lord
One thousand eight hundred and fifty-five.
E. MAYEUR. (L.S.)