IMPROVEMENTS IN SELF ACTING WATER EJECTORS.
Year: 1879

page_text: LETTERS PATENT to Joseph Sheldon Stubbs, of the City of Manchester,
Engineer, for the Invention of "IMPROVEMENTS IN SELF ACTING WATER
EJECTORS.
"
Sealed the 25th June 1880, and dated the 29th December 1879.
PROVISIONAL SPECIFICATION left by the said Joseph Sheldon Stubbs at
the Office of the Commissioners of Patents on the 29th December 1879.
JOSEPH SHELDON STUBBS, of the City of Manchester, Engineer. "IMPROVEMENTS
IN SELF ACTING WATER EJECTORS."
The objects of these improvements are to form a steam trap to expel condensed
steam from steam engine cylinders, steam jacketings, steam chests, steam hammers,
steam piping, and steam pans for chemical and other purposes; also from backwashing,
wool drying, combing, tenter, and other machines; from tobacco ovens, balloons
for drying purposes, and from any other vessel where it is desirable to eject
condensed steam or water from active steam.
To accomplish which and to effect any improvements I employ a solid or hollow
rod composed of iron, brass, copper, or other metal, or combination of metals, the
same being suitably attached inside an iron or other metal casing, by preference of
the tubular or pipe form. At one end of the aforesaid rod or rods is formed a valve
which is made capable of resting upon a seating fitted to the casing, by which
means the orifice or outlet is completely closed when the rod or rods becomes
expanded by the heat of the steam, the rod or rods being adjusted in proper position
by means of a screw attachment or continuation which passes through the valve
box, or casing, cover, or cap. A suitable inlet is provided for steam, which entirely
surrounds the rod or rods. When condensation of the steam takes place the
temperature of the rod or rods is reduced, causing the same to contract, and so
lifting the valve from its seating permits the water to be ejected at the consequent
opening. When the water is voided, the steam coming again in contact with the
rod or rods increases the temperature of the same and thus causes the expansion
necessary to close again the valve.

page_text: I am aware that the principle of expansion of metals has before been utilized in
various ways for this and similar purposes but those are entirely distinct from this
my present Invention.
I also attach to the outlet end of the apparatus a pipe having a swivel joint,
which allows the water to be ejected in different directions.
I also form the valve box cap so as to be capable of being screwed on to the
outside of the valve box or casing instead of inside, as is customary, thus permitting
the use of a wider tube or casing in proportion than is usually practicable.
I also make a modification of the scrow rod for adjustment by forming the same
so that it can be actuated by a removable key, thus preventing unauthorised
tampering with the apparatus.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Joseph Sheldon Stubbs in the Great Seal Patent Office on the 29th
June 1880.
JOSEPH SHELDON STUBBS, of the City of Manchester, Engineer. "LMPROVEMENTS
IN SELF-ACTING WATER EJECTORS."
The objects of the improvements are to form a steam trap to expel condensed
steam from steam engine cylinders, steam jacketings, steam-chests, steam hammers,
steam piping, and steam pans for chemical and other uses; also from back washing,
wool drying, combing, tenter, and other machines; from tobacco ovens, balloons for
drying purposes, and from any other vessel where it is desirable to eject condensed
steam or water from active steam. To accomplish which and to effect my improve-
ments I employ a solid or hollow rod, or it may be more than one rod, composed of
iron, brass, copper, or other metal, or combination of metals, the same being suitably
attached inside an iron or other metal casing, by preference of the tubular or pipe
form. At one end of the aforesaid rod or rods is formed a valve which is made
capable of resting upon a seating fitted to the casing, by which means the orifice or
outlet is completely closed when expansion of the rod or rods is caused by the heat
of the steam, the rod or rods being adjusted in proper position by means of a screw
attachment or continuation which passes through the valve box, or casing, cover, or
cap. A suitable inlet is provided for the steam which entirely surrounds the rod
or rods. When condensation of the steam takes place the temperature of the rod
or rods is reduced, causing the same to contract and so lifting the valve from its
seating, and thus permits the water to be ejected at the consequent opening. When
the water is voided, the steam coming in contact again with the rod or rods
increases the temperature of the same and thus causes the expansion necessary to
close again the valve. I am aware that the principle of expansion of metals has
before been utilized in various ways for this and similar purposes but these are
entirely distinct from this my present Invention. I also attach to the outlet end
of the apparatus a pipe having a swivel joint which allows the water to be ejected
in different directions. I also form the valve box cap so as to be capable of being
screwed on to the outside of the valve box or casing instead of inside, as is
customary, thus permitting the use of a wider tube or casing in proportion than is
usually practicable. Or the valve box and cap may be cast in one piece. Guides
are formed for directing the valve onto its seating either by passing the rod through
a bar placed across the inside of the casing, or by forming the valve with guide legs.
The inlet pipe may be provided with a suitable stop valve, which may form a part
of the union joint so as to enable necessary repairs or adjustments to be made. I
also make a modification of the screw rod for adjustment by forming the same so
that it can be actuated by a removable key, thus preventing unauthorized
tampering with the apparatus. But that the Invention may be better understood
I will by the aid of the accompanying Drawings proceed more fully to describe
MANG AMployed by me.
Fig. 1 shows a section of one form of any Invention and Fig. 2 shows a section of
5 a variation therefrom. The same letters indicate corresponding parts wherever
they occur. a, a, is the iron or other metal casing; b, b, the expansive rod and
valve passing through the valve box c and capable of being adjusted by the
screw actuated by the wheel d; c is the inlet and the swivel outlet; g, g, is
a guide bar for the rod, and h, h, are guide legs to the valve.

page_text: Having now described my Invention, and means I adopt in carrying the same
into effect, I would have it understood that I do not confine myself to the exact
details shown and described, as variations may be made without departing from
the peculiar character of my Invention, but what I do claim is, the application of
an expansive rod attached to a valve and with swivel outlet pipe, for the purpose
and in the manner substantially as shown and described.
In witness whereof, I, the said Joseph Sheldon Stubbs, have hereunto set my
hand and seal, this Twenty-sixth day of June, in the year of our Lord One
thousand eight hundred and eighty.
Witness,
WILLIAM GADD,
Consulting Engineer,
64, Barton Arcade,
Manchester.
JOSEPH SHELDON STUBBS. (L.S.)