Improvements in and relating to Valves.
Year: 1896

page_text: Date of Application, 27th Oct., 1896-Accepted, 9th Jan., 1897
COMPLETE SPECIFICATION.
Improvements in and relating to Valves.
We, ALFRED RICHARD BOLUSS, Inventor, and CLARENCE LINN, Lawyer,
citizens of the United States of America, both doing business at 239 Washington
Street, Jersey City, in the County of Hudson and State of New Jersey, United
States of America, 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 :-
Our invention relates to certain new and useful improvements in valves, and
particularly in that class employed in the manipulation and control of final moving
devices, such as steering apparatus, elevators, and the like.
The object of our invention is the production of a valve which will enable a final
mover to be set in motion to any desired extent, checked at intermediate points, and
held in such checked position, and also readily reversed; and with these ends in
view our invention consists in the novel construction and arrangement of parts
hereinafter more fully described.
In order that those skilled in the art to which this invention pertains may fully
understand the same we will proceed to describe the construction, arrangement and
operation of the several parts, referring by letters to the accompanying drawing, in
which
Figure 1 is a top plan view.
Figure 2 is a central vertical section taken on the line -x of Figure 1.
Figure 3 is a plan view of the under side of the top disc.
Figure 4 is a bottom view of the central or cut-off disc.
Figure 5 is a side elevation of the upper disc and central cut-off disc slightly
separated.
Figure 6 is a perspective view (looking at the top) of the central cut-off disc.
Figure 7 is a central vertical section taken at the line y-y of Figure 1.
Figure 8 is a top view of the bottom seat of the valve, and
Figure 9 is a plan view of the interior of the valve casing.
For the sake of convenience we have shown in the drawings the valve
mechanism disconnected or disassociated 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.
Similar letters of reference indicate like parts in the several figures of
drawings.
A represents the valve casing formed on top with a central hub B, to receive
the lever stem hereinafter described, and with an annular rim to constitute a
cylindrical inclosing wall to the interior valve discs, the annular rim of the casing
rests upon the bottom seat C and in close contact with the ring or collar
platform D.
The bottom seat is secured to the cylindrical wall of the casing by screws E,
as clearly shown at Figure 2. The underside of the bottom seat is cast with
vertical diametric projections F Fig. 7, to constitute stocks through which are
bored horizontal ports G, G', communicating with vertical ports H, H', bored
diametrically opposite each other through the ring or collar platform D.

page_text: The top of the casing A is provided with an inlet orifice or tube I for the admission
of the steam, air, or other equivalent.
The bottom seat is provided with a central and interior hub J which is bored
centrally to receive the vertical stem of the central cut-off disc.
K is the central or cut-off disc. It is formed with a central vertical stem L and
is cut away or cast open at M, M to lighten the structure. The vertical stem L is
bored centrally to constitute an exhaust port to be hereinafter described and is
countersunk at the upper end, as shown at 'N (Figure 6) to receive the centering
hub on the under side of the top valve disc.
Referring to Figure 4, the under side of the central or cut-off disc is formed
with two semi-circumferential grooves O, O', each communicating at one end
respectively with the two diametrically opposite and vertically oblique
passages P, P, seen at Figures 4 and 6 (the obliquity being shown by dotted
lines at Figures 4 and 5).
Midway between the two oblique passages P, P', and on the top surface of the
central cut-off disc is formed a short grouve Q Fig. 6 adapted to receive a vertical
stul R on the under side of the upper disc S Figs. 2 and 3. This upper disc S is
cast open as shown, to secure lightness, and has an upwardly projecting hub T
with a diametric slot to receive the T-head V Fig. 7 of a vertical stem or rod W
pussing through the central hub B and provided with an operating handle bar X
to which is secured any suitable pawl Y for engaging with the scores or rack Zin
a flange on the casing A which are made at predetermined localities to determine
the admission of the proper amount of steam, air or other equivalent to the valve.
The handle bar X is secured to the stem W by a set screw a.
The central cut-off dise is provided, as already mentioned, with a vertical exhaust
stem L, and the radial arm & secured thereto is intended to show that the rotary
movement of said stem may be, through any suitable connecting mechanism,
transmitted to a ship's steering gear, or any other last mover.
Recurring to the upper disc S, it is provided with the vertical stud R heretofore
referred to, and with a short centering hub c adapted to enter the seat or counter-
sink N. It is also formed with radial passages d, e, which intersect and communicate
with a channel e diametrically across the bottom and up each side of the centering
bub c. The outer ends of the radial passages d, e, terminate each on one side of
vertical ports/g bored through the upper dise, as clearly shown at Figure 3.
Having described the peculiarities of construction of the several parts, we will
now proceed to describe how such parts are assembled, and then the operation of
the same.
The central cut-off disc K is mounted upon the ring or collar platform D so that
the solid metal constituting bridges between the termini of the semi-circumferential
grooves O, O', will close the vertical ports H, H', in the platform D, the hollow
stem L passing centrally through the hub J on the bottoin seat C. The upper
disc S is then located on top of the central cut-off disc K so that the short vertical
stud R will project within the slot Q in the upper surface of the cut-off dise K
and the centering hub e located within the slot or countersink N, and with the
vertical ports,g, out of register with the vertically oblique passages P, P', in the
central cut-off dise. The casing A is then placed over the discs in the position.
shown at Figures 1 and 2, and so that the T-head V will lie within the slot U.
The casing and bottom seat are then secured together by the screws E and the
valve is in condition to be secured in position where it may be needed.
We will now proceed to describe the operation of the valve. The operating
medium, be it steam, air, or other equivalent, being admitted to the casing through
the inlet orifice 1, and the vertical port f of the upper disc being in register with
the oblique passage P of the cut-off dise K, the steain will pass through the oblique
passage to the communicating semi-circumferential groove O, and travelling around
the same to its opposite terminus will pass directly to the port H' through the
ring platform D and out through the port G¹. A reverse movement of the upper
dise S to bring the vertical port 9 in register with the oblique passage P will

page_text: cause the steam to traverse the other semi-circumferential groove O¹ into the
opposite vertical port H and out through the port G. This described operation
illustrates how readily the operation of the valve may be reversed without any
auxiliary or extraneous reversing mechanism.
The exhaust in each case above described is made through the radial passages d
and e respectively to the channel e' on the end of the centering hub c and through
the hollow stem L of the cut-off disc.
As the short stud R on the under side of the upper disc S projects into the
short groove Q in the upper surface of the central cut-off dise K, it is apparent
that the rotary or axial movement of the latter is limited by the position of the
upper disc and the stud thereon, and it will also be obvious that as the upper disc
is successively rotated by the handle X the central cut-off disc will be permitted
to further revolve a distance equal to the length of the groove Q, and thus through
successive or continuous moveinents of the handle X the central cut-off disc K
may be permitted to make a complete revolution in either direction, as may
be desired.
From the construction and operation described it will be seen that if the
handle X be moved a distance equal to the length of the short groove Q in the
upper surface of the disc K, said disc is free to be rotated a corresponding distance
and through its stem L and connection b cause any last mover to travel a similar
distance. Each successive movement of the handle X produces the same result,
so that, as before stated, the dise K may be caused to make a complete revolution
and through the medium of the pawl Y and rack Z the movement of the disc K
and its connections, as well as the last mover, may be held at any desired or
predetermined point. A reverse movement of the handle X will of necessity
produce a reverse movement of the several parts, so that it will be apparent that
through the medium of the handle X the last mover may be controlled with
absolute accuracy.
It will be apparent that the ports G and G¹ may communicate through any
suitable connection with any device or devices designed to be operated or controlled
by the passage of the fluid through the valve.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim, is:-
1. In combination with the bottom seat C constructed as described, and casing A
with inlet I, the central cut-off disc K with semi-circumferential grooves 0, 0¹,
oblique passages P, P', slot Q, and hollow stem L, the upper disc S with central
hub c, radial passages d, e, ports f, g, stud R and bifurcated hub T, the vertical
operating stem or rod W with T-head V, and handle X, substantially as and for
the purposes set forth.
2. In combination with the seat C, valve casing A, and contained discs K, and S,
constructed and arranged as described, the handle X and power transmitting
device b, or its equivalent, substantially as and for the purpose set forth.
3. In combination with the seat C and casing A constructed and arranged as
described, the contained dises K and S and means substantially as described for
controlling the axial movement of the disc K, as and for the purposes set forth.
4. In a valve such as described, the central disc K provided with a motion
transmitting stem L, having the extent and direction of its rotation controlled
through the medium of the disc S and handle X, substantially as described.
Dated this 27th day of October 1896.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.