IMPROVE- MENTS IN APPARATUS FOR RAISING AND FORCING Frung
Year: 1863

page_text: LETTERS PATENT to Jean Nadal, of No. 14, Brooke's Market, Brooke
Street, Holborn, in the City of London, for the Invention of "IMPROVE-
MENTS IN APPARATUS FOR RAISING AND FORCING Frung"
Sealed the 23rd May 1864, and dated the 26th November 1863.
PROVISIONAL SPECIFICATION left by the said Jean Nadal at the
Office of the Commissioners of Patents, with his Petition, on the 26th
November 1868.
I, JEAN NADAL, of No. 14, Brooke's Market, Brooke Street, Holborn, in
the City of London, do hereby declare the nature of the Invention for
"IMPROVEMENTS IN APPARATUS FOR RAISING AND FORCING FLUIDS," to be as
follows:-
This Invention has for its object improvements in apparatus for raising and
forcing fluids. For this purpose I employ two chambers placed side by side;
they are conveniently of cylindrical form, and are each closed at the top by a
flexible diaphragm. From the centre of one diaphragm to the centre of the
other a lever passes; it is securely fixed to each diaphragm, and pivots on an
axis or bridge-piece between the two. There is a suction or supply pipe
which communicates with the two chambers by suitable inlet valves, and there
is also an outlet pipe to which the water or liquid passes from the chambers
by suitable outlet valves. The outlet pipe may receive a hose and jet, and so
arranged the apparatus is very suitable for use as a garden engine; it is worked

page_text: by placing the foot directly on the lever which. connects the two diaphragms,
and working it to and fro as a treddle. A diaphragm pumping and forcing
apparatus constructed in the manner above described is very inexpensive and
portable, and much more simple in construction than diaphragm pumping and
forcing apparatus heretofore employed.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Jean Nadal in the Great Seal Patent Office on the
26th May 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JEAN
NADAL, of No. 14, Brooke's Market, Brooke Street, Holborn, in the City of
London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-sixth day of November, in the year of our
Lord One thousand eight hundred and sixty-three, in the twenty-seventh year
of Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Jean Nadal, Her special licence that I, the said Jean Nadal, my
executors, administrators, and assigns, or such others as I, the said Jean
Nadal, 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, an Invention for "IMPROVEMENTS IN APPARATUS FOR
RAISING AND FORCING FLUIDS," upon the condition (amongst others) that I, the
said Jean Nadal, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, 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 Jean Nadal, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, 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 apparatus for raising and
forcing fluids. For this purpose I employ two chambers placed side by side;
they are conveniently of cylindrical form, and are each closed at the top by a

page_text: screwing into a roughened plate h which passes across the hollow projection g.
The lever is held down and prevented from rising off the bridge-piece by a
pin g¹ passing under the hollow bridge e, as is shown. i is the inlet or suction
pipe from which two branch passages lead to the two chambers a, and in each
of these passages, just where it opens into the chamber, is a ball valve k, the
ball being by preference of glass, and resting on a tube or seat n of vulcanized
india-rubber, as is shewn; these valves allow water to pass into the chambers,
but will not permit water to pass from them. From each of the chambers a
there is also another passage which leads into the chamber which is formed
between the two chambers a, and in each of these passages is a ball valve m of
vulcanized india-rubber. The chamber is made open at the bottom, and is
closed by the bottom plate l', and the balls m rest in hollows in this bottom
piece; these valves allow water to pass from the chambers a into the
chamber 1, but will not allow water to pass in the opposite direction; from the
chamber an outlet pipe o passes, and to this pipe, when the apparatus is to
be used as a garden engine, a flexible hose and jet may be attached. The
apparatus is worked, as before stated, by placing a foot on the top of the
lever f, and working it to and fro as a treddle. In addition to being able to
work the pump in this manner, the pump may also be provided with a lever
handle, so that the pump may either be worked by the foot or by hand.
this purpose the pin g¹ is suitably formed to allow of its passing through
holes in the lower end of the lever handle, so that the lever may turn on
this pin, and the lever has two projections upon it, one of which comes
above one end of the lever f, and the other over the other end of the lever;
by this means when the lever handle is rocked on the pin g' the lever f will
be rocked also.
For
In witness whereof, I, the said Jean Nadal, have hereunto set my
hand and seal, this Twenty-sixth day of May, in the year of our Lord
One thousand eight hundred and sixty-four.