IMPROVEMENTS IN PUMPS
Year: 1869

page_text: LETTERS PATENT to William Anthony Herring, of the Chertsey
Foundry, Chertsey, in the County of Surrey, Ironfounder and
Engineer for the Invention of "IMPROVEMENTS IN PUMPS."
Sealed the 27th April 1869, and dated the 26th February 1869.
PROVISIONAL SPECIFICATION left by the said William Anthony
Herring at the Office of the Commissioners of Patents, with his
Petition, on the 26th February 1869.
I, WILLIAM ANTHONY HERRING, of the Chertsey Foundry, Chertsey,
in the County of Surrey, Ironfounder and Engineer, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN PUMPS," to be as
follows:-.
In constructing pumps according to this Invention I employ a
cylinder or pump barrel open at both ends and supported at its centre
by a ring standing out from its exterior and passing to the sides of a

page_text: casing by which the pump barrel is surrounded. The casing is thus
divided into two compartments, one open to one end of the cylinder,
whilst the other is open to its opposite end. The piston rod of the
piston which works in the cylinder passes out through a stuffing box
in one end of the casing, and has a to-and-fro motion given to it in
any suitable manner. From opposite sides of each compartment of the
casing passes a pipe or passage, the passage from one side leading to
an inlet valve box, whilst the passage from the other leads to an outlet
valve box. The casing and cylinder may both be formed together in
one casting, or the casing may be made in two halves and separate
from the cylinder; the two halves of the casing may then be made to
receive and hold between them the ring which stands out from the
exterior of the pump cylinder. The inlet valve box is made separate
from the casing containing the pump cylinder, and is divided by a
horizontal partition into two compartments, the lower one being con-
nected to the suction pipe, whilst the upper one is divided by a vertical
partition into two chambers, each of which contains an inlet valve
fitted to an opening through the horizontal partition; from the two
compartments containing the inlet valves are short pipes, the ends of
which are both surrounded by one flange plate which is bolted to
corresponding flanges at the ends of the two inlet passages leading to
the two compartments of the pump casing. The two outlet pipes or
passages from the two compartments of the pump casing are similarly
brought together, and are formed with a flange to which is bolted a
flanged hollow cap or cover from which the delivery pipe passes away.
Outlet valves are fitted to the ends of each of the passages, and above
these valves holes fitted with covers are formed through the top of the
cap, so that the valves can readily be got at. These covers have stems
passing down from them to form stops to prevent the valves rising
too much from their seats, and the covers are each held down by a
screw screwed through a bar which is passed over them. Holes fitted
with covers are similarly formed through the upper half of the inlet
valve box, and the inlet valves are similarly prevented from rising too
much from their seats by stops carried by the covers.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Anthony Herring in the Great Seal
Patent Office on the 26th August 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
ANTHONY HERRING, of the Chertsey Foundry, Chertsey, in the County
of Surrey, Ironfounder and Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-sixth day of February, in the
year of our Lord One thousand eight hundred and sixty-nine, in the
thirty-second year of Her reign, did, for Herself, Her heirs and succes-
sors, give and grant unto me, the said William Anthony Herring, Her
special licence that I, the said William Anthony Herring, my executors,
administrators, and assigns, or such others as I, the said William
Anthony Herring, my exccutors, 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 Inven-
tion for "IMPROVEMENTS IN PUMPS," upon the condition (amongst others).
that I, the said William Anthony Herring, my executors or adminis-
trators, 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 William Anthony Herring, do
hereby declare the nature of the said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained in
and by the following statement thereof, that is to say:-
In constructing pumps according to this Invention I employ a
cylinder or pump barrel open at both ends and supported at its centre
by a ring standing out from its exterior and passing to the sides of a
casing by which the pump barrel is surrounded. The casing is thus.
divided into two compartments, one open to one end of the cylinder,

page_text: view of a pump constructed as above described.
a is the cylinder or pump barrel open at both its ends and supported
at its centre by the ring a¹ passing to the side of the casing b. In
the pump shewn in the Drawings the casing b and pump barrel a are
cast together in one piece. The casing has also cast with it the central
portion of the inlet valve box c; this valve box is divided horizontally
by the partition c¹ into two compartments. The upper compartment of
the valve box is divided into two by a vertical partition, and from the
compartment on one side of the vertical partition a passage is made.
opening into the upper part of the casing b, whilst from the com-
partment on the other side of the vertical partition there is a passage
to the lower part of the casing b; from the lower compartment of the
valve box c is led the suction pipe, and this lower compartment by
two passages fitted with inlet valves d communicates with the two
compartments above it. The manner in which the valve box is con-
structed and is fitted at its upper end with covers by which the
suction valves can be got at is clearly shown by the Drawing, so that
it is unnecessary to describe it here. On the opposite side of the
pump the casing b has similarly cast with it outlet passages e fitted
with outlet valves f, f, and these valves are both covered over by one

page_text: cap g, from which there are two outlet passages, to either one or other
of which the delivery pipe g' may be attached, whilst the other is closed
by a screw cap h. k, k, are covers fitted to openings through which
the outlet valves f, f, can be got at. The piston of the pump is fitted
with double-cupped leathers, and the piston rod may have motion
imparted to it in any suitable manner.
Having thus described the nature of my Invention, and the manner
of performing the same, I would have it understood that what I claim
is, the construction of pumps, substantially as herein described.
In witness whereof, I, the said William Anthony Herring, have.
hereunto set my hand and scal, this Twenty-third day of August,
in the year of our Lord One thousand eight hundred and sixty-
nine.