Governor Valves for Steam-engines.
Year: 1886

page_text: Governor Valves for Steam-engines.
I, WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake & Co, Patent Agents,
Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of my invention for "IMPROVEMENTS IN COMBINED THROTTLE OR STOP VALVES
and in what manner the same is to
AND GOVERNOR VALVES FOR STEAM-ENGINES
be performed, to be particularly described and ascertained in and by the following
statement:
"
This invention relates to an improvements in combined throttle or stop-valves
for steam engines, and particularly to that class in which the throttle or stop-valve
is in the same case with the governor valve.
The objects of the said invention are to make the throttle-valve entirely inde-
pendent of the governor valve, although in the same case; and also to construct
the throttle-valve so that it may be reversed and its stem extend from either end
of the throttle-valve case, according to the position required for the valve. The
said invention consists in constructing the case with the throttle-valve chamber at
one side of the governor valve chamber, so as to open into the governor valve
chamber, but leave the two valves clear and independent of each other, and also in
constructing the throttle-valve chamber with a removable valve seat at one end,
and a removable threaded spindle socket at the opposite end, the ends of the
chamber being screw-threaded corresponding to the said seat and socket, so that
the seat and socket may be introduced into either end of the chamber;
various details of construction more fully hereinafter described..
In the accompanying drawings,
and in
Figure 1, is a perspective view showing the exterior of the valve case.
Figure 2 is a horizontal section through the centre of the throttle-valve case.
Figure 3 is a vertical central section.
Figure 4 is a side view, and
Figure 5 is a central section of the conical valve.
A represents the governor-valve case, on one end of which is a head B, and on
the opposite end a similar. head C, by which the case may be connected with the
pipe and governor; or the attachment may be any of the common devices for this
purpose, so that the case may be properly, supported,

page_text: D represents one of the governor valve seats, and E the other, in which the
governor-valve, not shown, is arranged in the usual manner, so that both seats are
opened to the steam chamber F for the passage of the steam through the upper
seat, thence around through the passage G to the escape H, and also through the
valve seat E directly into the escape H; this is a common and well known
construction, and does not require particular description.
'At one side of the governor-valve case the throttle-valve case I is formed, the
two cases being in one and the same casting, but so as to bring the throttle-valve
entirely independent of the governor-valve.
This independent relation of one valve to the other, permits the removal of either
valve without effect upon the other, in contradistinction to the valve in which the
throttle is worked through the governor-valve chamber, with which arrangement
the removal of one disturbs to some extent the other, the independence of the valve
in this case being the same as if they were in separate cases, joined by an inde-
pendent connection,
Sometimes it is required that the handle of the spindle of the throttle or stop-
valve shall be at one end of the chamber, and sometimes at the other, hence under
the usual construction it is necessary to make such valves right or left hand. To
adapt a valve chamber to either a right or left hand position, I internally screw-
thread the two ends of the throttle-valve chamber, of like diameter and like thread,
as seen at a Figure 2, and I construct a socket K correspondingly screw-threaded
to fit one end of the spindle; and this socket I make for the inlet, and internally
screw-thread it, or otherwise construct it for the attachment of the inlet steam
pipe, and also wake this socket K to constitute the valve seat. As here repre-
sented the valve seat is formed by a ring b introduced into the inner end of the
socket, so that the valve may bear thereon. At the opposite end. I provide a
spindle socket L, screw-threaded for introduction into that end of the chamber, and
also internally screw-threaded corresponding to the screw-thread of the valve
spindle M, this spindle socket being provided with the usual stuffing-box arrange-
ment, the two sockets are therefore adapted to be introduced into either end of the
chamber as the case may be.
The spindle carries the valve, which is adapted to set upon the valve seat to
close the passage from the steam pipe into the governor valve chamber, or to open
it, according to the direction in which the spindle is rotated. The spindle is
provided with the usual hand wheel N, or equivalent device, by which the spindle
may be rotated,
The valves are prepared for sale, say as seen in Figure 2. If in setting the
valve it is found more convenient that the spindle should extend from the opposite
end of the throttle-valve chamber, then the two sockets are removed, and
introduced in a reverse position, they being interchangeable, as before described.
In some cases a flat packed faced valve is desirable, and in others: a conical valve
is desirable; to adapt the single construction to either a flat faced or conical valve,
I employ the removable valve seat b, which is constructed with a flat face d on its
inner end, and also with a conical face e upon its inside. In Figure 2 I show the
flat face or packed valve. The spindle M is constructed with a collar fupon its
inner end, and upon the spindle back of this is a loose collar g; this loose collar is
screw-threaded upon its outside. P is the body of the valve, which has a. recess
adapted to receive the collar fand the threaded portion of the collar g, so that as
the collar g is screwed into the body P, it will draw it against the nut or collar of
the spindle, so as to securely attach the two.
L
In the face of the body P is a concentric recess, in which the packing ring his
placed, and there clamped by a nut R. adapted to bear upon the face of the
packing; this packing may be copper, hard india-rubber, or other suitable material
which will readily adapt itself to the face of the valve seat.
The connection between the body P and the spindle is such that the spindle, may
revolve freely without revolving the valve, the collar serving to connect the two
in the usual manner for this class of valves,
-
L

page_text: This construction of valve permits the ready removal of the packing for renewal
or repairs.
The conical valve, as seen in Figure 4, is constructed with its face conical,
corresponding to the conical surface in the valve seat b; and upon its back is a
recess to set on over the collar f so as to receive the screw collar g, as seen in
Figures 4 and 5. The interchangeable valves being furnished, if either is preferred
to the other, the one preferred may be introduced, the seat being adapted to either;
thus I not only provide in the single article a right or left hand spindle for the
throttle, as may be required, but also a valve seat with valves adapted either to a
flat faced or a conical valve, as may be desired; the dealer has thus practically four
distinct valves, that is to say, a right hand flat faced throttle, a left hand flat
faced throttle, a left hand conical faced throttle, and a right hand conical faced
throttle.
The valve case with the removable sockets whereby the spindle may be adapted
to extend from either end of the case as required, may be applied to other classes
of valves,
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed as communicated
to me by my foreign Correspondent, I declare that what I claim is
First. The herein described improvements in a combined throttle or stop-valve
and governor valve for a steam engine, consisting of the governor valve case and
the throttle or stop-valve case formed as an integral part of the said governor valve
case each forming a valve chamber independent of the other with an opening from
one to the other, combined with a throttle or stop-valve arranged in said throttle
or stop-valve chamber, substantially as described.
Second. The valve casing I containing a valve chamber having an exit opening
therefrom, the two ends of said casing having openings therein concentric with each
other, and of like diameter and similarly screw-threaded, combined with an inlet
socket K, screw-threaded to correspond to the screw-threaded ends of the casing,
and provided with a valve-seat; the socket L also screw-threaded to correspond to
the screw-threaded ends of the casing, the said socket L being internally screw-
threaded; and the spindle M screw-threaded to correspond to the screw-threaded
socket L and carrying the valve, the said sockets being interchangeable from end to
end of said casing, substantially as, and for the purpose described.
Third. The combination of the valve-seat b constructed with a flat face, and
with an internal conical face; the adjustable spindle M in axial line with said
valve seat; and the interchangeable flat and conical faced valves, substantially as
described.
Fourth. The combination of the valve case; the removable inlet socket K; the
removable valve seat b in said socket; the removable socket L; the case con-
structed to receive said sockets respectively at either end thereof, but concentric to
each other, the said socket L being internally screw-threaded; the valve spindle M
screw-threaded to correspond to said socket L, the said spindle being constructed
with a fixed collar fat its inner end and having a loose screw-threaded collar g
back of said collar; and the body P of the valve constructed with a concentric
recess upon its face having packing therein, and the nut r adapted to bear upon
the face of said packing to secure it in said recess, substantially as described.
Dated this 25th day of January 1886
HASELTINE, LAKE & Co.,
For the Applicant.