Improvements in Steam Valves.
Year: 1896

page_text: Date of Application, 22nd June, 1896-Accepted, 1st Aug.. 1896
Improvements in Steam Valves.
I CHARLES SCHNEIDER, Steamfitter, resiling at 1213 Union Avenue, in the
City County and State of New York U.S.A. 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 an improved steam valve which is
adapted for use in connection with high pressure steam engines, or high pressure
steam supply pipes; a further object being to provide a device of this class in
which two valves are employed between which is placed an exhaust pipe whereby
if the steam pipe at one side of said valve, or its connections, should need repair at
any time, the steam may be entirely cut off therefrom; and with this and other
objects in view the invention will be hereinafter fully described and specifically set
forth in the annexed claims.
The invention is fully disclosed in the following specification, in which
Fig. is a central vertical section of a coupling in which the valve seats are
located showing the valves and operative mechanism in full lines, and
Fig. 2 is a similar view on the line 2-2 of Fig. 1.
In the practice of my invention, I provide a tubular coupling head A, which is
provided with tubular extensions a, at each side thereof with which steam pipes
may be connected in the usual manner and the coupling head A, is provided on its
upper side with a tubular extension a², and extending downwardly from the inner
side walls of the tubular extension a, are partition plates a³, in which openings or
passages a are formed and arranged centrally of the tubular extension a², are two
partition plates as in which are formed openings or passages a®.
The partition plates a³ are inclined from the tubular extension a² inwardly and
downwardly and the partition plates a are inclined from the center of the tubular
extension a³, downwardly and outwardly, and thus form two vertical spaces or
chambers which are triangular in form in central vertical sections as clearly shown
in Fig. 1, and secured to the tubular extension a², is a hollow cap or head B, which
is provided with a central vertical projection b, which extends downwardly to and
rests upon the upper end of the partition end a, which are united at 62 and passing
through the upper closed end of the hollow cap or head B, are two vertically
movable rods D and D2, to the lower ends of which are secured valves d and d²,
respectively which are of the same form in cross section as the spaces or chambers
between the partitions a3 and a*.
The rods D and D³, are connected at their upper ends by cross head D³,
through which passes a screw threaded bolt G, on which is mounted a ring g,
provided with a central hub g2, through which the screw threaded bolt G, passes,
and secured to the hollow cap or head D, is a spider or frame consisting of vertical
standards H, which are united at their upper ends by a cross head or plate h,
through which the screw threaded bolt G, passes and said cross head or plate is
provided with angular shoulders or projections K, which are adapted to operate in
an annular groove formed in the hub g2, as shown at ³.
The cross head as, by which the upper ends of the valve rods D and D2, are
connected is permanently or rigidly secured to the lower end of the bolt G, and as
will be understood, the arched frame consisting of the standards H, and the cross
head or plate . is stationary and the valves d'and d², may be raised or lowered by
turning the wheel a

page_text: The valve rods D and D pass through packing boxes. L. and L, of any
preferred construction and it will be apparent that by operating the ring g, the
valves d and d, may be forced downwardly. so as to close the passages or
openings a and a" or that said valves may be raised to open said passages
whenever desired.
By means of the construction herein shown and described, it will be seen that a
triangular vertical space or chamber M, is forined between the partition plates a,
the base of which is directed downwardly, and I also provide a pipe m, which
communicates with the space M, and in which is placed a valve m², of any
preferred construction and it will be apparent that by means of this device any
steam that may enter the central chamber M, when the valves are seated, may be
exhausted through the pipe m, and will not be allowed to pass from said chamber
in either direction.
In valves of this class, it is almost impossible to secure a connection between the
valve and the valve seats so as to absolutely prevent all passage of steam when
said steam is under high pressure and it also frequently occurs that it is necessary
to repair the steam pipes or connections on one side of said valve, and when this is
the case and the valves are both seated, by opening the valve in the exhaust
pipe m, it will be apparent that while steam may enter from the opposite side into
the central chamber M, it will pass out through the exhaust pipe m, and not
through valve on the side where the repairs are required, and it is evident that the
connections on each side of the coupling head may thus be repaired whenever
desired and without interference or trouble occasioned by the escaping steam.
My invention is not limited to the exact form of construction and arrangement
of the various parts herein shown and described, and I therefore reserve the right
to make all such alterations therein and modifications thereof as fairly come within
the scope of my invention.
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. The herein described coupling head and valve for steam pipes or fittings
which consists of a tubular coupling head having tubular openings at each side
with which steam pipes may be connected and being also provided with a tubular
extension on the upper side thereof, said tubular extension and said coupling head
being provided with partition plates which connect with the side walls of the
tubular extension and extend downwardly and inwardly to the bottom of the
coupling head, and with two other partition plates which are located centrally of
the tubular extension and which extend downwardly and outwardly and connect at
the bottom with the first named partition plates whereby two vertical chambers or
spaces are formed which are triangular in vertical section, and each of said
partition plates being provided with ports or openings and said chambers or spaces
being provided with a vertically movable valve which is adapted to close said ports
or openings and said coupling head being also provided with a central chamber
formed by said central partition and an exhaust pipe which communicates
therewith, substantially as shown and described.
2. The herein described coupling head and valve for steam pipes or fittings
which consists of a tubular coupling head having tubular extension at each side
with which steam pipes may be connected and being also provided with a tubular
extension on the upper side thereof, said tubular extension and said coupling head
being provided with partition plates which connect with the side walls of the
tubular extension and extend downwardly and inwardly to the bottom of the
coupling head, and with two other partition plates which are located centrally of
the tubular extension and which extend downwardly and outwardly and connect at
the bottom with the first named partition plates whereby two vertical chambers or
spaces are formed which are triangular in vertical section, and each of said
partition plates being provided with ports or openings and said chambers or spaces

page_text: being provided with a vertically-movable valve which is adapted to close said ports
or openings and said coupling head being also provided with a central chamber
formed by said central partition plates and an exhaust pipe which communicates
therewith and the tubular extension of said coupling head being provided with a
cap or cover having a vertical central partition and through the top of which are
passed two valve rods, one of which is connected with each valve, and means for
operating the same, substantially as shown and described.
3. The herein described coupling head and valve for steam pipes or fittings
which consists of a tubular coupling head having tubular openings at each side
with which steam pipes may be connected and being also provided with a tubular
extension on the upper side thereof, said tubular extension and said coupling head
being provided with partition plates which connect with the side walls of the
tubular extension and extend downwardly and inwardly to the bottom of the
coupling head, and with two other partition plates which are located centrally of
the tubular extension and which extend downwardly and outwardly and connect at
the bottom with the first nained partition plates whereby two vertical chambers or
spaces are formed which are triangular in vertical section, and each of said
partition plates being provided with ports or openings and said chambers or spaces
being provided with a vertically movable valve which is adapted to close said ports
or openings and said coupling head being also provided with a central chamber
formed by said central partition plates and an exhaust pipe which communicates
therewith and the tubular extension of said coupling head being provided with a
cap or cover having a vertical central partition and through the top of which are
passed two valve rods, one of which is connected with each valve, and means for
operating the same, consisting of the vertically movable screw threaded bolt which
is connected with the upper ends of said valve rods and on which is mounted a.
wheel provided with a hub, said wheel. and hub being supported by a frame
connected with the cap or cover of the tubular extension, substantially as shown
and described.
4. The herein described coupling head and valve for steam pipes or fittings,
which is provided with two transverse valve chambers, and a central chamber
between the same, said valve chambers being each provided with a valve, and said
central chamber being provided with an exhaust pipe, substantially as shown and
described.
5. The herein described coupling head, and valve for steam pipes or fittings,
said coupling head being provided with two transver se valve chambers which are
formed as herein described, and with a central chamber between said valve
chambers, said central chamber being provided with an exhaust pipe and said
valve chambers being each provided with a valve and means for operating said
valves, substantially as shown and described.
Dated this 22nd day of June 1896.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.