Improvements in and relating to Valves.
Year: 1898

page_text: Date of Application, 24th May, 1898-Accepted, 16th July, 1898
COMPLETE SPECIFICATION.
Improvements in and relating to Valves.
I, ROBERT BOORMAN STRONG, a Citizen of the United States, residing at 25, Pine
Street, in the City of New York and State of New York, U.S.A., 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:-
My invention relates to improvements in valve controlling devices, and
particularly to that class of valve controllers, wherein a valve of comparatively
large capacity is controlled through the operation of a valve of comparatively
small capacity, I accomplish this result by the use of a motor, operated by the
pressure controlled by the main valve, and I control the pressure to this motor,
by the use of an auxiliary system of valves operated either manually or electri-
cally.
I have illustrated my invention in the accompanying drawings, and designated
the parts by letters referring to like parts by like letters.
Figure 1, is a view of my valve in section, with the auxiliary valve stem, and
magnets in elevation; electrical connections to the magnet, and a circuit con-
troller are also shown.
Figure 2, is a detailed view of the auxiliary valve stem, and its connections.
Figure 3, is a detailed view in section of the main valve stem.
A, is a valve chest, with ports a¹ and a², and a port within the valve seat a³;
I prefer also to provide a recess a¹ to receive one end of the auxiliary valve stem
as a guide for the same.
B, is a cylinder, preferably made integral with the valve chest, the heads of the
cylinder 6 and 63 are suitably bored to receive the main valve stem C, hereafter
described, and a port b³ is provided to permit an escape of pressure before the
piston 5.
C, is a valve stem, referred to as the main valve stem; it is shown in detail in
Figure 3. It is provided with a valve head cl, and is bored through its axis, to
form a channel or port c², at each end of this channel or port are provided seats c³
and 4. A piston is mounted on the main valve stem C to operate within the
cylinder B, to open the main valve, and the ports and lead from the channel c²
into the cylinder B, before the piston c³.
D, is a valve stem, referred to as an auxiliary valve stem, it is shown in detail
Figure 2. Mounted on this stem are the valve heads d¹ and d, and the arma-
ture d, and knob d, an adjustable connection is made in this stem with the
yoke d³, which is threaded with right and left hand screws to permit the adjustment
of the armature d, in relation to the magnet E. This auxiliary valve stem is
mounted within the hollow stem C, and preferably works in the ways at and e².
E and E, are electro magnets, mounted on a base plate el, said plate being
bored at e², to receive the auxiliary valve stem D, and said plate is suitably mounted
on the main valve stem C, preferably by the set screws and e³. I have shown
the magnets in an electric circuit xx, with a circuit controller y, interposed in
said circuit.

page_text: over-
The apparatus above described is operated as follows: Assuming that pressure
is lying within the valve chest A, before the valve heads and d¹, such
pressure will maintain said valves closed. To open the main valve pressure
must be exerted against the auxiliary valve stem, D, sufficient to
come the pressure within the valve chest, affecting the valve head d¹. I may
exert this pressure manually, by pressing the knob d³, or 1 may bring the electro
magnets E, into circuit through the circuit controller y, when the armature d
will be attracted to said magnets, and the force of magnetism will be exerted
to move the auxiliary valve stem D. The movement of the auxiliary valve
stem D, in a direction to unseat the valve head d¹, will also operate to seat the
valve head d. This operation will open the ports c² and co, and permit the
pressure lying within the valve chest to pass into the cylinder B, when such
pressure will affect the piston c, and move the same within the cylinder B, and
thus operate to move the main valve stem C, and thus unseat the main valve
head c, and permit the main body of pressure controlled by the main valve to
pass through the same, and out of the port a².
When the pressure exerted on the auxiliary valve stem D, is released, the
pressure lying before the valve head d', will cause the same to be again seated,
and at the same time the valve head da will be raised off its seat and the pressure
lying within the cylinder B, will exhaust to the atmosphere, and the pressure
lying before the valve heads d' and c¹ will close the main valve.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is:-
1. In a valve controlling device the combination of a main valve normally
closed by the pressure controlled thereby, a motor to operate said main valve,
consisting of a cylinder and piston, a valve stem secured to the piston and valve
head with a port passing through said stem to the pressure lying before the valve,
and leading to the cylinder and an exhaust, two auxiliary valves interposed within
said port operating conjointly, one adapted normally to close the supply port
to the motor, by the operation of the pressure controlled by the main valve, and
the other operating abnormally to close the exhaust from the motor while the
supply port is opened, and means to operate said auxiliary valves, substantially
as described.
2. In a valve controlling device, the combination of a main valve, having a
valve head adapted to be seated by the pressure controlled by said valve; a
motor to operate said main valve, consisting of a cylinder and piston, a valve stem
secured to the piston, and the main valve head, a port through said main valve
head and stem, leading to the cylinder and an exhaust, an auxiliary valve stem
adapted to operate within said port through the main valve stem, said auxiliary
valve stem provided with two valve heads, one head adapted normally to be seated
by the pressure controlled by the valve, and to close the said supply port leading to
the motor, and the other head operating conjointly with the first to close the said port
leading from the motor to an exhaust when the supply port is open, and to open
said exhaust when the supply is closed, and means to operate said auxiliary valve
stem, substantially as described.
3. In a valve controlling device, the combination of a main valve having a
valve head adapted to be seated by the pressure controlled by said valve, a motor
to operate said main valve consisting of a cylinder and piston, a valve stem
secured to the piston and the main valve head, a port through said main valve
head and stem, leading to the cylinder and to an exhaust, an auxiliary valve stem
adapted to operate within said port through the main valve stem, said auxiliary
valve stem provided with two valve heads, one head adapted normally to be
seated, by the pressure controlled by the valve, and to close the said supply port
leading to the motor, and the other head operating conjointly with the first to
close the said port leading from the motor, to an exhaust when the supply port

page_text: is open, and to open said exhaust when the supply port is closed, a motor suitably
mounted and connected with the auxiliary valve stem to operate the same, sub-
stantially as described.
4. In a valve controlling device, a main valve normally closed by the pressure
controlled by said valve, a hollow valve stem carrying the main valve head, and
a piston, a cylinder for said piston, a port through said hollow stem leading from
the pressure lying before the valve to the cylinder, and to an exhaust, two
auxiliary valves interposed in said port, operating together, to open the supply
port, and close the exhaust, or to close the supply port and open the exhaust;
an electro magnet suitably mounted on the main valve stem, in circuit, and means
to control said circuit, with an armature for said magnet secured to the auxiliary
valves, to operate the same, substantially as described.
5. In a valve controlling device, a main valve normally closed by the pressure
controlled by said valve, a hollow valve stem carrying the main valve head, and
a piston, a cylinder for said piston, a port through said hollow stem leading from
the pressure lying before the valve to the cylinder and to an exhaust; an auxiliary
valve stem adapted to operate within said hollow stem, and carrying two valve
heads suitably interposed in said port, and operating together to open the supply
port, and close the exhaust, or to close the supply and open the exhaust; an
electro magnet suitably mounted on the main valve stem, in circuit, with means
to control said circuit, an armature for said magnet secured to the auxiliary valve
stem, substantially as described.
6. In a valve controlling device, a valve chest with inlet and outlet ports through
the same, and a valve, a seat, a main stem carrying a main valve head and
a piston, a port through the axis of said main valve stem, leading to a
cylinder and an exhaust; said port having valve seats at either end, a
cylinder for said piston, and an auxiliary valve stem carrying two valve heads,
and means to operate said auxiliary valve stem, substantially as described.
7. In a valve controlling device, a valve chest with inlet, and outlet ports
through the same, and a valve seat, a main valve stem carrying a main valve
head a piston and magnets, a port through the axis of said main valve stem,
leading to a cylinder, and an exhaust, said port having valve seats at either end,
a cylinder for said piston, an auxiliary valve stem carrying two valve heads, and
an armature, an electro magnet, mounted on the main valve stem said magnet in
circuit, and means to control said circuit, substantially as described.
8. In a valve, the combination of a main valve, valve stem, steam cylinder
and piston secured to the valve stem for operating it, a steam port for supplying
steam to the cylinder, a valve controlling said port and an auxiliary valve stem
operating said valve, with an electro magnet, mounted upon the main valve stem
and moving with it and an armature for said magnet operating the auxiliary
valve stem.
9. The combination of the main valve, a piston whose movement controls the
movement of the main valve, an auxiliary valve for controlling the movement of
the fluid to the piston, an exhaust valve whose movement is controlled by the
movement of the auxiliary valve, an electro magnetic mechanism for moving
the auxiliary valve from its seat, and means connecting the part upon which the
electro magnetic mechanism is mounted with the main valve.
10. The combination of a main valve, a piston whose movement controls the
movement of the main valve, an auxiliary valve for controlling the movement of
the fluid to the piston, an armature secured to the stem of the auxiliary valve, a
yoke secured to the main valve, and an electro magnetic mechanismy mounted upon
said yoke.
11. The combination of a main valve, a piston whose movement controls the
movement of the main valve, an auxiliary valve for controlling the flow of the
fluid to the piston, an electro magnetic mechanism for moving the auxiliary
valve from its seat, and means for connecting the part upon which the electro
magnetic mechanism is mounted to the main valve.

page_text: 12. The combination of a main valve, a piston whose movement controls the
movement of the main valve, a hollow valve stem connecting the main valve with
the piston, an auxiliary valve for controlling the flow of the fluid to the piston,
and an electro magnetic mechanism for operating the auxiliary valve.
Dated the 24th day of May 1898.
THEO. MCKENNA,
Agent, 17 and 18, Basinghall Street, London, E.C.