Improvements in and relating to Rotary Valves.
Year: 1899

page_text: Date of Application, 28th Feb., 1899-Accepted, 15th July, 1899
Improvements in and relating to Rotary Valves.
A communication from abroad by THE UNITED STATES STEERING GEAR AND VALVE
COMPANY, doing business at 239, Washington Street, Jersey City, in the
County of Hudson and State of New Jersey, United States of America.
I, PETER JENSEN, of No. 77, Chancery Lane, London, Chartered Patent Agent,
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 valves, and more particularly in valves
employed in the manipulation and control of final moving devices, such as steer-
ing apparatus, elevators, and steam, pneumatic, hydraulic or other apparatus,
requiring different periods in their action, such as starting, stopping and inter-
mediate stoppages.
The object of the invention is to produce a valve which will enable an engine
or other motor to be set in motion to the desired extent, checked at intermediate
points, and held in such checked position, and also to be readily reversed.
With these ends in view my invention consists in the novel construction of
details, and the arrangement of parts, as hereinafter more fully described and
specifically pointed out in the claims, reference being had to the accompanying
drawings, in which---
Figure 1 is a top or plan view of the valve with the valve casing removed.
Figure 2 is a vertical section on line
of Figure 1 with the casing.
Figure 3 is a bottom view of the cut off valve.
Figure 4 is a vertical section on line y-y of Figure 3.
Figure 5 is a bottom view of the main valve.
Figure 6 is a top or plan view of Figure 5.
Figure 7 is a vertical section on line zz of Figure 5.
Figure 8 is a vertical section of the valve seat on line ww, Fig. 9.
Figure 9 is a top or plan view of Figure 8.
Figure 10 is a vertical section of said valve seat at right angles to Figure 8
on line --v.
Figure 11 is a plan view of the arrangement of the valve and cylinder con-
nected for operation.
For the sake of convenience I have shown in the drawings the valve mech-
anism disconnected from any device or apparatus, which it is designed to control,
and have shown only a means of connection between the valve and any movable
device designed to be controlled by it, as will be fully explained hereinafter.
In the drawings A represents the valve casing, having a central hub a for
receiving the valve stem v of the segmental cut-off valve B.
This valve casing is secured to a cylinder, containing a piston and rod extend-
ing preferably through both heads, and connected by chains or the like to a
077

page_text: tiller of a steering apparatus, elevator, or any equivalent apparatus to be con-
trolled at will by the engineer or other operator.
To the stem is secured a handle or lever X connected to any suitable operating
mechanism, not shown. The flange of the casing is bolted to the valve seat C
by bolts or screws c. The cut-off is provided with ports 6 and 6, the latter of
which are oblong, round, elliptical, square or of semi-circular form, while the
former extend through the valve. On the back of this valve B is a hub that enters a
recess in the valve casing and serves to steady the movement of the said valve. The
cut-off valve is seated on the back of the main or central disk valve D and suitable
stops d limit the movement of the cut-off with that of the main valve.
main valve is provided with the ports e, e¹ and e¹¹, the latter being segmental or
semi-circular in form.
The
In the main valve the recesses D₁ D₁ are for the purpose of keeping the
ports e e in register with the engine ports in any position the valve may be
placed, as best seen in Figure 5, and forming a rim, so as to make a continuous
seat or face. The stem f of this valve is secured to and extends through it and
the valve seat, and to said stem a suitable lever f¹ and operating. mechanism is
attached, having motion coincident with the piston, and through any suitable
connecting mechanism the movements of the piston are transmitted to a ship's
steering gear or any other last mover.....
The valve seat is provided with the annular depressions g, forming the rims.g
and it has the ports hh¹ in it. Into the middle annular space g the horizontal
inlet port E extends, and after passing through the said port and space, the
steam, air, or other equivalent being admitted through the port E passes into the
middle space through the port el in the main valve D, and as the cut-off is
oscillated said steam or equivalent then passes through the port b¹ in said cut-off
and thence through the port h in the valve seat into the horizontal port F and a
suitable pipe to the piston in the cylinder to exert its force. The exhaust then
passes into the port H through the ports h¹ and el, extending to the inner
annular space and out through the port G to the condenser or other desired place
of destination. It will be readily understood that by admitting the steam
through the port H and successively through the spaces and ports as described
in the first place, the valve can be readily reversed in its action and operation.
The steam or other motive power enters the port E, passing to the outer
annular space g in the valve seat, through one of the ports ell in the main valve
into the steam chest. It then descends through the port b in the cut-off, passes
into the space g" thence through the port h into port F, communicating with one
end of the cylinder. The exhaust steam enters through the port H, passing
through the ports e, the longitudinal port b¹ in the cut-off, thence through the
port into the inner annular space g and out through the port G to the con-
denser or the atmosphere. The action of the engine is easily reversed as will be
apparent.
The arm or lever x, Figure 11, is connected by wire rope chain a¹, or its
equivalent, passing over suitable sheaves or pulleys y arranged as described, to
the steering wheel of a vessel, the lever of an elevator, hoisting machine, &c.
The arms is connected by a rod t to the crank u on the tiller, which is also
connected to the cross-head of the engine by a pitman V and is then controled by
said engine. It will thus be seen that the rudder, elevator, or its equivalent, is
under the complete control of the operator.
My improved mechanism is designed especially for use in conjunction with
the rudders of vessels, although it is readily adaptable for the operation of eleva-
tors, car brakes, hoisting machinery or cranes, or any kind of machinery in
which it is desired to set in motion the engine or operating motor, hold it in a
certain position, and to easily and quickly reverse the motion, and the modifica-
tions required in practice would readily suggest themselves to any skilled
mechanic. The last mover may thus be controled with absolute accuracy. The
steam or other motive power may be admitted through the bottom seat, or through
the side or top of the casing.
.
:

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim, is;-
1. In combination with a valve seat C and casing A with inlet E, the main
valve D having ports as described, stops d, d', and stem f, with the segmental
cut-off B provided with the ports bb, and longitudinal ports b¹ b¹, all substan-
tially as specified.
2. The combination with a casing A and a valve seat C having inlet opening E,
outlet opening G and cylinder opening F and outlet opening H, and the ports h, h¹,
the main valve D provided with rectangular ports e, and segmental ports e¹ and ell
and a segmental cut-off valve B having the through ports 6 and the oblong semi-
circular ports 6 and stops d' d', all substantially as set forth.
3. In combination with a casing A secured to a valve seat C, having the inlet
and outlet openings and ports arranged as described, a main valve D provided
with the ports e, e¹, ell and stops d', with the cut-off valve B having the ports b
and oblong ports 6" all arranged substantially as specified.
4. In combination with a seat C, valve casing A and contained disks D, B,
arranged as described, the handle X and power transmitting device fl or its
equivalent, and stops d¹ d', substantially as and for the purpose set forth.
5. In combination with a seat C, valve casing A, and a controlling valve B; &
central disk valve having suitable ports and actuating a power transmitting
device f¹, and stops d¹d¹, substantially as specified.
6. The combination of a seat, a valve casing, having side inlet and outlet or
their equivalent, a disk valve provided with stops on its back, with a cut-off valve
arranged on the back of said disk valve, an actuating device and a transmitting
device to the motor, substantially as specified.
7, In rotary valves, a valve casing having an inlet for steam or the like, and
an outlet, with a seat with ports, a central disk valve and a cut-off seated on
the back of said disk, provided with stops and operating mechanism, as set forth.
Dated this 28th day of February 1899.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.