Year: 1888

page_text: We WILLIAM HENRY SHAW and FRED SHAW both of Bottom Holme Mills,
Milnsbridge near Huddersfield in the County of York, Brass Founders and Finishers,
do hereby declare the nature of this invention to be as follows:-
This invention consists of an improved construction, combination and arrangement
of parts so designed that the valve seating, during the time the valve is open or in
actual use is covered and protected from deposit or scouring action of liquids passing
through the valve.
According to this our said invention we employ two slide plate valves connected by
a cross or head piece with the screw of the spindle, the said valve plates enclose
between them a flanged collar enclosing a spiral spring with a strap having a spindle,
and foot piece, the latter resting in a recess or foot step in the bottom of the casing.
The flanged collars or tubes form a passage way across the valve box or casing. The
outer surfaces of the plate valves are held in contact with the valve seatings
formed in the casing, by the expanding of the spiral spring or springs which force
the flanges of the collars or tubes against the inner faces of the plate valves making
the valve, steam or fluid tight.
There is sufficient space in the upper part of the valve casing to permit the plate
valves being raised by the screw clear of the seatings and into the space just inen-
tioned, and as the orifice in the plate valves is the same as the diameter of the passage
way through the valve, it will be seen that when the valve is open the valve seatings
are entirely covered by the portion of the plate valves near to and round such orifice so.
that there can be no lodgment of sediment on the seatings, nor are the latter exposed
as is commonly the case in valves as heretofore constructed.
In lieu of the spiral spring for keeping the valves to the seatings we may employ
a U formed spring, there being a hole through each of the upper arms which holes
receive the flanged collar or tubes as already referred to and through the latter is a
short tube of internal diameter equal to the passage way of the valve. The curved
and lower part of the spring is attached to the bottom of the casing by a set screw.
Dated this 18th day of May 1888.
WALTER BRIERLEY,
Town Hall Buildings, Halifax,
Agent for the Applicants.

page_text: We, WILLIAM HENRY SHAW and FRED SHAW both of Bottom Holme Mills,
Milnsbridge near Huddersfield in the County of York, Brass Founders and Finishers,
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:-
This invention consists of an improved construction, combination, and arrangement
of parts so designed that the valve seating, during the time the valve is open or in
actual use is covered and protected from deposit or scouring action of liquids passing
through the valve.
According to this our said invention we employ two slide plates, connected by a
cross or head piece with the screw of the spindle, the said valve plates enclose
between them a flanged collar, enclosing a spiral spring with a strap held in position
by a finger which rests on the flange in the casing of the valve. The flanged collars
or tubes form a passage way across the valve box or casing. The outer surfaces of
the plate valves are held in contact with the valve seatings formed in the casing by
the expanding of the spiral spring or springs which force the flanges of the collars
or tubes against the inner faces of the plate valves making the valve steam or fluid
tight.
There is sufficient space in the upper part of the valve casing to permit the plate
valves being raised by the screw clear of the seatings and into the space just men-
tioned, and as the orifice in the plate valves is the same as the diameter of the
passage way through the valve, it will be seen that when the valve is opened the
valve seatings are entirely covered by the portion of the plate valves near to and
round such orifice so that there can be no lodgment of sediment on the seatings,
nor are the latter exposed as is commonly the case in valves as heretofore con-
structed.
:-
Such being the nature and object of this our said Invention, the following is a
complete description of same reference being had to the accompanying drawings :-
Fig. 1 is a side elevation partly in section of our improved valve.
Fig. 2 is an end elevation with valve partly opened of Fig. 1.
Fig. 3 is a side elevation of slide plates, cross-head, spring &c. detached.
Figs. 4 & 5 are details.
According to this our said invention we employ two slide plates 1-1 connected by
a cross or head piece 2 with the screw 3 of the spindle 4, the said valve plates 1-1
enclose between them a flanged collar or collars 5-5 enclosing a spiral spring 6 with
a strap 7 held in position by a finger 8 which rests on the flange 9 in the casing 10
of the valve. The flanged collars 5-5 or tubes form a passage way across the valve
box or casing 10. The outer surfaces of the plate valves 1-1 are held in contact
with the valve seatings 11 formed in the casing 10 by the expanding of the spiral
spring or springs 6 which force the flanges 12 of the collars or tubes 5-5 against
the inner faces of the plate valves making the valve-steam or fluid tight.

page_text: There is sufficient space in the upper part of the valve casing 10 to permit the plato
valves 1-1 being raised by the screw 3 clear of the seatings 11, and as the orifice 13
in the plate valves 1-1 is the same as the diameter of the passage way 14 through
the valve, it will be seen that when the valve is open the valve seatings 11 are
entirely covered by the portion of the plate valves 1-1 near to and round such
orifice 15, so that there can be no lodgment of sediment on the seatings 11, nor are
the latter exposed as is commonly the case in valves heretofore constructed.
In lieu of the spiral spring 6 for keeping the valves 1-1 to the seatings 11 we
may employ a U formed spring there being a hole through each of the upper arms,
which holes receive the flange collar or tubes as already referred to, and through the
latter is a short tube of internal diameter equal to the passage way of the valve
The curved and lower part of the spring is attached to the bottom of the casing by a
set screw.
It will be seen that the valve seatings 11. 11. are stationary and that the contact
and pressure of the valve plates 1-1 upon such seating is ensured through the
action of the spring 6 and collars 5-5 and that the pressure is equal and uniform
throughout the range of motion of the valve plates 1-1.
The strap 7 encloses the spiral spring 6 and holds the latter and also the
collars 5-5 and their flanges 12-12 stationary and firmly in position as shewn in
fig. 1.
Having now particularly described and ascertained the nature of this our Inven-
tion, and in what manner the same is to be performed we declare that what we
claim is
The improvements in valves herein described wherein is comprised stationary valve
faces 11 11 moveable valve plates 1-1 and expanded or pressure collars 5-5,
12-12 and holding device such as strap 7 all in combination and as illustrated by
the annexed drawings and heroin fully described.
WILLIAM HENRY SHAW.
FRED SHAW.
By their Agent, Walter Brierley,
Town Hall Buildings, Halifax.