IMPROVEMENTS IN AND APPLICABLE TO STEAM ENGINES AND BOLLERS
Year: 1871

page_text: LETTERS PATENT to Joseph Stockley, Engineer, of Harton, and
Matthew Stainton, Iron Founder, of South Shields, both in the
County of Durham, for the Invention of "IMPROVEMENTS IN AND
APPLICABLE TO STEAM ENGINES AND BOLLERS."
Sealed the 3rd April 1872, and dated the 9th October 1871.
PROVISIONAL SPECIFICATION left by the said Joseph Stockley and
Matthew Stainton at the Office of the Commissioners of Patents,
with their Petition, on the 9th October 1871.
We, JOSEPH STOCKLEY, Engineer, of Harton, and MATTHEW
STAINTON, Iron Founder, of South Shields, both in the County of
Durham, do hereby declare the nature of the said Invention for
“IMPROVEMENTS IN AND APPLICABLE TO STEAM ENGINES AND BOILERS," to be
as follows:-
Our Inverition has for its object the prevention of priming in steam
boilers by separating the water from the steam on their passage from
the boiler to the engine.
.

page_text: For this purpose a vessel consisting of an outer casing and inner pipe
any other
is placed near the ordinary dome or steam reservoir, or in
convenient situation, by means of which vessel or casing the steam is
intercepted on its passage to the engine and made to take a spiral and
downward course between the interior of the vessel or casing and the
outer circumference of the inner pipe enclosed. By this motion of the
steam and water centrifugal force is developed which causes the denser
or watery portion of the mixed water and steam to fly to the outer
surface of the annular space between the inner pipe and its outer casing
or jacketting. In the inner pipe orifices are provided which together
are in area more than equal to the area of the steam pipe, and through
which orifices the separated steam of the said mixed water and steam
(which have acquired momentum on their downward and spiral course)
is allowed to escape from the said annular space into the inner pipe and
thence into the steam pipe leading to the engine, leaving the water to
pursue its downward course due to the gravitating and centrifugal
momentum already acquired.
The water thus separated from the steam is free to fall into a pipe
connected to the bottom of the said vessel or casing and leading to the
hot well, feed pump, boiler, or elsewhere required. This pipe is provided
with a valve to prevent return flow to the vessel or casing.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Joseph Stockley and Matthew Stainton in the
Great Scal Patent Office on the 9th April 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we,
JOSEPH STOCKLEY, Engincer, of Harton, and MATTHEW STAINTON,
Iron Founder, of South Shields, both in the County of Durham, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Ninth day of October, in the year
of our Lord One thousand eight hundred and seventy-one, in the thirty-
fifth year of Her reign, did, for Herself, Пer heirs and successors,
give and grant unto us, the said Joseph Stockley and Mathew Stainton,
Her special licence that we, the said Joseph Stockley and Matthew
•

page_text: But in order to produce such a motion of the steam and water
throughout the said annular space as is required adequately to effect
their separation, the twist of the webs or dividing plates on the outer
surface of the inner pipe should not equal one turn round the same,
and they are by preference made with only one half turn. At the 5
bottom of the said inner pipe (which is open) orifices are provided in
augmentation of the arca of the steam pipe, and through which the
separated steam of the said mixed water and steam (which have acquired
momentum in their combined downward and rotating course) is allowed
to escape from the said annular space into the inner pipe and thence 1
into the steam pipe leading to the engine, leaving the water to pursue its
downward course due to the combined gravitating and centrifugal
momentum already acquired.
Having thus stated the nature of the said Invention we will proceed
to describe more particularly in what manner the same is to be performed 1
by the aid of the accompanying Drawings, in which are represented two
forms of application of the Invention to steam boilers.

page_text: prevent return flow to the vessel or casing A. At the lower part of
the pipe D are orifices H, H, in augmentation of the area of the steam
pipe. Through this area the steam, separated from the mixed steam
and water by the combined centrifugal and downward force, developed as
above stated, is allowed to escape from the annular space F and bulb I
into the pipe D and thence into the steam pipe leading to the engine.
From the foregoing description it will be understood that on the
steam and water mixed passing from the boiler into the upper part of the
vessel or casing A it will be forced rapidly in its downward course,
directed by the dividing plates E, E, through the annular space F and
have its denser portions carried to the outer part of such space, and by
the downward momentum returned in the form of water to the boiler
through the pipe G, while the dried steam will be allowed to escape
through the bottom area of the inner pipe H, H, into the pipe D, and
thence pass through the steam pipe to the engine.
Having thus described the nature of the said Invention, and in what
manner the same is to be performed, we hereby declare that what wo
claim as of our Invention is, the apparatus for preventing priming,
consisting of an arrangement of parts whereby a combined gravitating
and centrifugal momentum is developed to effect the separation of the
water and steam in the manner described.
In witness whereof, we, the said Joseph Stockley and Matthew
Stainton, have hercunto set our hands and seals, the Sixth
day of April, in the year of our Lord One thousand eight
hundred and seventy-two.
Witness,
ARTHUR A. PHILLPOTTS,
Clerk in Holy Orders,
(LS.)
JOSEPH STOOKLEY.
MATTHEW STAINTON. . (L.S.)
Harton,
South Shields.