Year: 1888

page_text: I EDWARD WYNNE DONOVAN of Woodthorpe, near Loughborough in the county of
Leicester, Engineer, do hereby declare the nature of this invention to be as
follows:-
The "Cock" or
"Valve" is a metal casting consisting of, an inlet and outlet
(for the water or other fluid) and a valve chamber.
The valve chamber is of cylindrical shape open at one end, and with a valve
seating at the other, and the outlet springing from it near the valve seating.
The outlet may be constructed of any ordinary convenient form such as a cylinder
opening direct into the valve chamber. But I prefer to make it with the opening into
the valve chamber of a narrow passage extending half way round the chamber, as
close as convenient to the valve seating, and of equal area to the section of the outlet,
i.e. not less than that of the inlet.
In combination with this "Cock" I use a valve; preferably in the shape of a
sphere or ball; made of india rubber or some other suitable elastic material; which
placed in the chamber constructed for its reception. It is kept open by the pressure
of the fluid lifting it and being shut by the direct pressure on the valve of the "Arm"
or lever; which is actuated in conjunction with the float by the rise of the fluid in the
tank or cistern.
I sometimes use in place of the elastic ball or other suitable detached valve, a piece
of elastic material attached to the end of the "Arm" to act as a valve; in which case
the weight of the "Arm" and float assist in keeping the valve
open.
or lever having its
In combination with the above, I construct a metal "Arm
fulcrum attached to the "Cock" or close to it, and the float being fixed to one end
of said "Arm," the other end acting direct on a loose valve, or having the valve
attached to it.
" or any
other suitable
In combination with the aforementioned "Cock" and "Arm
self regulating valve, actuated by means of a float; I construct a float of glass
which may be spherical or any other suitable shape, to take the place of the copper
ball now in general use for similar purposes.

page_text: Tattach this float to the "Arm" by means of a screw, cement, a " cotter," a
collar embracing a neck on the float, a metal pin attached in manufacture to the
glass or by any other suitable method.
.
ليوم
An Improved Ball Cock or Self Regulating Valve.
I EDWARD WYNNE DONOVAN of Woodthorpe near Loughborough in the county of
Leicester, 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 my invention is to produce a cheap and durable self regulating
supply valve for cisterns, such as are generally known as "Ball Cocks;" the float
of which is usually made of two hemispheres of copper soldered together; but as
the action of water corodes the solder thereby creating leakage and consequently
stopping the action of the float and becoming a constant cause of expense and
annoyance I have invented the float herein after to be described, which will effectually
overcome this defect besides being cheaper.
My improved Ball Cock consists of the combination of the several parts which
I will call, the "Cock," the "Arm," the "Valve" and the "Float."
My invention will be fully understood by reference to the accompanying drawings
Figs. 1 2 & 3 Sheet 1.
Figs. 4, 5, 6 & 7 Sheet 2 illustrate-a-modified form of the same.
The first part which I will describe is the "Cock;" A metal casting consisting of
an inlet and outlet (for the water or other fluid) and a valve chamber.
Fig. 1 shows a longitudinal section of the same, in which it is marked a. Fig. 2
is a cross section through the outlet on line AB; Fig. 3 shows a plan of its under
side.
a, Figs. 1 & 2 is the inlet, consisting of an ordinary cylindrical pipe, at the end of
which is the valve seating a, which is of conical shape, the axis of the cone being
coincident with that of the cylindrical valve-chamber a, joined thereto, and at an
angle inclined upwards from that of the inlet pipe.
The outlet a, may be constructed of any ordinary convenient form such as a
cylinder opening direct into the valve chamber; but I prefer to make it with the
opening into the valve chamber, of a narrow passage extending half way round the
chamber, as close as convenient to the valve seating, and of equal area to the outlet
i.e. not less than that of the inlet.

page_text: The second part which I will describe, is the "Arm" or lever which I use in
combination with the herein before described "Cock."
Fig. 1 shows a side elevation of this "Arm" partly in section and is marked c ;
Fig. 3 shows a plan of the same.
or
This "Arm" or lever is constructed of metal being pivotted to the "Cock"
close thereto at c₁, consequently c₁ is the fulcrum of a lever, the power being
applied to the end (c) of the long arm, by means of a float attached thereto, the
end (c) of the short arm, I make flat or of any other suitable form, to act directly
on to a detached valve as shown, or having the valve attached to it.
The third part which I will describe is, the Valve which I use in combination
with the herein before described "Cock" and "Arm."
Fig. 1 shows this valve marked b. I use a valve preferably in the shape of a sphere
or ball, made of india rubber, or some other suitable elastic material. When this
valve is kept pressed against the valve-seating a, (as in position shown by the firm lines
in Fig. 1) by the Arm c it stops the fluid from entering the exit passage, but
when the pressure of the "Arm" is removed by the fall of fluid in the cistern
and it assumes the position shown dotted Fig. 1, the force of fluid from a, will
remove the valve 6 to the position shown dotted, thereby creating a communi-
cation between a, and a, which will allow the fluid to flow through the "Cock,"
till the float again rises and presses the valve, by means of the "Arm" against its
seating.
I sometimes use in place of the elastic ball or other suitable detached valve; a
piece of elastic material attached to the extremity of the "Arm" to act as a valve,
in which case, the weight of the "Arm" and float assist in keeping the valve open.
And I do not confine myself to the use of a valve of spherical shape, as it might be
made to fulfill the same object in various other forms, such as cylindrical with hemi-
spherical or conical end or ends.
The fourth part which I will describe is, the "Float" which I use in combination
with the herein before described "Cock," "Arm," and "Valve" or any other suitable
self regulating valve actuated by means of a float.
Fig. 1 shows this float in part section attached in position to the arm c and
marked d.
I construct my float of glass and it may be made spherical or of any other suitable
shape; I prefer to make it of the former with a boss or neck, by which it is
attached to the "Arm" and it may be hermetically sealed or constructed with an
opening. In case of its being made with an opening, it can be attached to the "Arm
so that the opening is under the water or other fluid while in action, thereby preventing
the escape of the air contained therein and by which it is caused to float.
دو
I attach this float to the "Arm" by means of a screw (male or female) cut or
moulded, on or in, the boss or neck thereof, fitting into or on, a corresponding screw
on the extremity of the "Arm" as shown in Fig. 1; but I do not confine myself to
this particular form of attachment, as it may be done by various other means, such as
cement, a cotter," a collar embracing the neck on the float, a metal pin attached in
manufacture to the glass, or by any other suitable method.
The foregoing description of the several parts of my invention, as shown in my
drawings on Sheet 1 are equally applicable to the modified form of the same, shown on
Sheet 2. The reference letters applying to similar parts in each design.
Fig. 4 shows a longitudinal section of the "Cock" marked a.
Figs. 5 & 6 are respectively; an end elevation and plan of the under side of
the same.
a, is the inlet, a, the valve seating a the valve chamber, which in this case I make
opening at an angle downwards. I make the outlet of a number (3, 4 or more) of
annula segments, concentric with the valve chamber, and communicating with the
letter, by their inner sides. This will be fully understood by reference to Fig. 6 in
which the outlets are marked a, a, a, ag.
Fig. 4 shows part of the Arm c in side elevation, and Fig. 7 the same in plan.

page_text: It will be seen by reference to theso Figs. that I use a different order of lever in
this instance, to that previously described, i.e. that in which the fulcrum is at one end,
the power being applied at the other. But the action and principle is similar to that
previously described.
The valve and float I use in this form of my invention are exactly similar to those
previously described.
As my said improvements are capable of various modifications without departing
from the principle thereof, I do not restrict myself to material, dimensions, or the
precise form or placement of the several parts thereof.
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 :-
1. The combination of a metal "Cock" and "Arm" together with an elastic valve,
acted upon by means of a float, substantially and for the purpose as herein before
described and shown in the drawings Figs. 1, 2 & 3, Sheet 1 and Figs. 4, 5, 6, & 7,
Sheet 2.
2. A float made of. glass to be used in combination with the herein before described
"Cock" "Arm" and "Valve" or with any other suitable valve constructed to be
acted upon by means of a float, substantially and for the purpose as herein before
described and shown in Drawing Fig. Sheet 1.
1000