Pump Cage.
Year: 1896

page_text: Date of Application, 13th Mar., 1896
Complete Specification Left, 14th Dec., 1896-Accepted, 6th Mar., 1897
Pump
Cage.
I, JAMES STEPHEN WYNDHAM, of No. 14 Kyveilog Street, Cardiff, in the
County of Glamorgan, Engineer, do hereby declare the nature of this invention to
be as follows:-
The object of this invention is to provide improved means for the renewals and
repairs of suction and delivery pump valves, for steam pumping engines.
It is principally adapted to the valves of direct acting steam pumps, such as the
"Worthington" and pumps of that class.
It is well known that the cast iron valve chambers, when working in impure
water, speedily perish, and the seats get loose in their places, rendering the valves
inoperative. Many attempts have been made to repair the defects with more or less
success.
In carrying my invention into effect, I take away the valves and seats altogether,
and in their place, within the valve chamber, I insert a metallic casing, within
which, I form a pair of valve seats, for both suction and delivery, the suction valve
being placed at the bottom of the casing, and the delivery valve seat upon its top
face, thus forming a box, with a valve seat on its top and bottom faces. An
opening in the side of the box communicates with the top of the suction valve
which is placed upon the valve face inside the box.
The top valve seat fits into a recess formed into the top of the box, and has upon
the division webs of the seat, a guard formed to regulate the lift, of the bottom or
suction valve.
A central pin is passed down through the delivery valve seat, and suction valve,
with its point screwed into a central boss, formed in the suction valve seat.
An enlarged collar formed upon the top of the central pin, acts as a guard of
the delivery valve, and a shoulder, formed also near the top part of the pin, presses
against the central portion of the delivery valve seat, so that when the pin is
screwed downwards, the delivery valve seat is held in position.
A suitable head or square is formed upon the top of the pin for the purpose of
screwing it up.
The valve casings may be divided in halves if necessary, so that the lower part
of the suction portion may be fixed into the valve chamber, independently of the
delivery half, so that the delivery half can be taken away, without interfering with
the suction half: the whole being kept down in its place by the usual diaphragm,
or division plate, upon which the delivery valves were formerly fixed. The old
delivery valve opening is made larger than heretofore if necessary, in order to
allow of the new delivery valves passing up through it.
Dated thin 10th day of March 1900
PHILLIPS & LEIGH,
Agents for the Applicant.

page_text: An Improved Pump valve Cage.
I, JAMES STEPHEN WYNDHAM of No. 14 Kyveilog Street, Cardiff, in the
County of Glamorgan, Engineer do hereby declare the nature of this invention,.
and in what manner the same is to be performed, to be particularly described and.
ascertained in and by the following statement :-
The object of this invention is to provide improved means for the renewals and
repairs of suction and delivery pump valves, for steam pumping engines.
It is principally adapted to the valves of direct acting steam pumps, such as the
"Worthington" and pumps of that class.
It is well known that the cast iron valve chambers when working in impure
water, speedily perish, and the seats get loose in their places, rendering the valves
inoperative. Many attempts have been made to repair the defects with more or less
success.
In carrying my invention into effect, I take away the valve and seats altogether,
and in their place, within the valve chamber, I insert a metallic casing, within
which, I form a pair of valve seats for both suction and delivery, the suction valve
being placed at the bottom of the casing, and the delivery valve seat upon its top
face, thus forming a box, with a valve seat on its top and bottom faces.
opening in the side of the box communicates with the top of the suction valve
which is placed upon the valve face inside the box.
AD
The top valve seat fits into a recess formed into the top of the box, and has upon
the division webs of the seat, a guard formed to regulate the lift of the bottom or
suction valve.
A central pin is passed down through the delivery valve seat and suction valve
with its point screwed into a central boss, formed in the suction valve seat.
Au enlarged collar formed upon the top of the central pin, acts as a guard of the
delivery valve, and a shoulder, formed also near the top part of the pin, presses
against the central portion of the delivery valve seat, so that when the pin is
screwed downwards, the delivery valve seat is held in position.
A suitable head or square is formed upon the top of the pin for the purpose of
screwing it up.
The valve casings may be divided in halves if necessary, so that the lower part
of the suction portion may be fixed into the valve chamber, independently of the
delivery half, so that the delivery half can be taken away, without interfering with
the suction half, the whole being kept down in its place by the usual diaphragm, or
division plate, upon which the delivery valves were formerly fixed. The old
delivery valve opening is made larger than heretofore if necessary, in order to
allow of the new delivery valves passing up through it.
Referring to the accompanying figures which are to be taken as part of this
specification and read therewith:-
Figure 1 is a sectional elevation of a cage made according to the present
invention, including the suction and delivery valves.
Figure 2 is a plan.
Figure 3 is a part sectional elevation on a smaller scale of a portion of the pump
chamber including the cage and valves.
Figure 4 is a sectional elevation of a modified form of cage including a check
valve.
Referring to Figures 1 to 3, A is the suction and B, the delivery valve. C, D are
the two portions of the cage, fitting to each other along the line E. It is of a
proper contour for being dropped into the old seat from which the defective valves
have previously been removed. The portions F and G are those adapted to fit

page_text: into the old openings. It must be explained here, that the particular form or type
of the valves A or B is not part of the present invention and that the latter is
applicable to any ordinary valve.
H and I are, respectively, the suction and the delivery chambers. The water
enters the pump through ports J J in the side of the cage and the passage K. The
cage is kept in position by the top plate L of the pump chamber and which rests
for that purpose upon a shoulder M on the outside of the pump cage.
Referring to Figure 4, there is illustrated therein a pump clack or check valve,
fitted with a cage of a different form but made according to the present invention.
It shews the combination of the latter with an ordinary mushroom valve and its
seat, after the substitution of a new seat for the old one. The cage N rests upon
the new seat P, a recess O being present therein to receive it. The cover Q keeps
the cage in position, the spigot R being turned to fit to it.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
The improved pump cage as set forth with reference to the accompanying
figures.
PHILLIPS & LEIGH,
No. 22 Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.