Improvements in Apparatus for Regulating or Controlling the Flow of Water or other Fluid in Pipes or Tubes.
Year: 1888

page_text: Date of Application, 5th Jan., 1888
Complete Specification Left, 20th Sept.. 1888
Complete Specification Accepted, 31st Dec., 1888.
Improvements in Apparatus for Regulating or Controlling the Flow
of Water or other Fluid in Pipes or Tubes.
I Herbert TrotT of 75 High Street Battersea in the County of Surrey, Engineer
do hereby declare the nature of this invention to be as follows :-
These improvements relate to valves and taps especially designed for regulating the
flow of fluids under high pressure and the invention has for its object to prevent
inconvenient shocks consequent on sudden opening and closing of such valves and to
facilitate their operation.
the
For this purpose I apply between the inlet tubular part of the valve and the
moveable valve piece that operates in conjunction with its seating generally
applied on a dividing screen across the mouth of the outlet tube, a cylindrical
sliding part formed hollow and with side openings and divisions across
interior, or openings only and a closed end. This cylindrical piece slides in a
corresponding recess formed for it across or adjacent to the inner end of the
inlet tube or in another tube applied in the inlet tube of the valve or as a pro-
longation thereof or in equivalent situation and this sliding cylindrical part is moved
in simultaneously with the valve piece either by being connected to it, or by means
of a spring pressing it to the valve piece so that their movements may be simultaneous.
The cylindrical surface of this sliding part is formed with suitable ports and plain
portions one or more ports if desired being of inclined, or of other form than rectangular
and in other line than at right angles. to the plane of reciprocation, so as to give
graduation of opening when these ports are brought over the inlet opening or openings
for fluid and to enable the flow of fluid or liquid to be cut off in advance of the
actual seating of the valve piece by the plain portion of the cylinder being drawn over
the inlet.
According to one arrangement of valve to which my invention may be conveniently
applied for instance, supposing the inlet tube giving access to the valve chamber to be
at right angles to the plane of motion of the valve piece to and from its seat under the
operation of a stem sliding in a seating in the same plane and provided with a press

page_text: button, a convenient form for the cylindrical sliding part would he a tube divided
across its interior transversely leaving in some cases an adjustable opening or a plain
opening for exit of air or liquid enclosed in the chamber rearward of the division and
the front division having lateral ports. In the rearward division is located a
spring to press the slide to the valve piece from and through the front of the seating
of which is led away the outlet tube.
Or within the inlet tube or continued therefrom is a tubular cylindrical piece
having a closed end and lateral ports and with this slides sympathetically with the
valve piece, a ported cylindrical piece having a closed end which may carry the
attachment to the valve piece if so desired.
In operation as the valve is being opened the pressure of the fluid is not borne by
the valve piece proper because the cylindrical sliding piece has its solid portion across
the inlet opening of the valve chamber but as soon as the valve piece is well away from
its seat the movement brings the parts in line with and permits fluid to pass from the
inlet; so also in closing the sliding cylinder ports allow fluid to pass freely as long as
the valve is fully away from its seat but as it approaches its seat the cylindrical
valve slides with it and the solid portion thereof closes the inlet opening or inlet
ports in advance of the closing of the valve piece to its seat whence the valve piece is
relieved from shock.
The operation of the valve piece to and from its seat will be by float lever or direct
float lift or by thumb button or lever, or by screw or cam, or otherwise according to
circumstances and so also will vary the form of the following sliding ported cylinder
or part cylinders for relieving the inlet pressure during the closing motion of the
valve proper.
In like manner the uses to which the valves so regulated or arranged may be put
will admit of great variety such as the control of the flow of water, both hot and cold,
regulating chambers of steam or hot water pipes, vent chambers of hot air apparatus
and other uses.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London,'
Agents for the Applicant.

page_text: Improvements in Apparatus for Regulating or Controlling the Flow
of Water or other Fluid in Pipes or Tubes.
I HERBERT TROTT of 75 High Street, Battersea, in the County of Surrey, 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:
These improvements relate to valves and taps especially designed for regulating the
flow of fluids under high pressure and the invention has for its object to prevent,
inconvenient shocks consequent on sudden opening and closing of such valves and to:
facilitate their operation.
For this purpose I apply between the inlet tubular part of the valve and the
movable valve piece that operates in conjunction with its seating generally applied on
a dividing screen across the mouth of the outlet tube, a cylindrical sliding part
formed hollow and with side openings and divisions across the interior, or openings
only and a closed end. This cylindrical piece slides in a corresponding recess formed
for its across or adjacent to the inner end of the inlet tube or in another tube applied
in the inlet tube of the valve or as a prolongation thereof or in equivalent situation
and this sliding cylindrical part is moved in simultaneously with the valve piece
either by being connected to it, or by means of a spring pressing it- to the valve
piece so that their movements may be simultaneous. The cylindrical surface of
this sliding part is formed with suitable ports and plain portions one or more ports
if desired being of inclined, or of other form than rectangular and in other line
than at right angles to the plane of reciprocation, so as to give graduation of
opening when these ports are brought over the inlet opening or openings for fluid
and to enable the flow of fluid or liquid to be cut off in advance of the actual
seating of the valve piece by the plain portion of the cylinder being drawn over the
inlet.
According to one arrangement of valve to which my invention may be conveniently
applied for instance, supposing the inlet tube giving access to the valve chamber to be
at right angles to the plane of motion of the valve piece to and from its seat under the
operation of a stem sliding in a seating in the same plane and provided with a press
button, a convenient form for the cylindrical sliding part would be a tube divided
across its interior transversely leaving in some cases an adjustable opening or a plain
opening for exit of air or liquid enclosed in the chamber rearward of the division and
the front division having lateral ports. In the rearward division is located a spring to.
press the slide to the valve piece from and through the front of the seating of which is
led away the outlet tube.
Or within the inlet tube or continued therefrom is a tubular cylindrical piece
having a closed end and lateral ports and with this slides sympathetically with valve
piece, a ported cylindrical piece having a closed end which may carry the attachment
to the valve piece if so desired.

page_text: In operation as the valve is being opened the pressure of the fluid is not borne by
the valve piece proper because the cylindrical sliding piece has its solid portion across
the inlet opening of the valve chamber but as soon as the valve piece is well away
from its seat the movement brings the ports in line with and permits fluid to pass
from the inlet; so also in closing the sliding cylinder ports allow fluid to pass freely
as long as the valve is fully away from its seat but as it approaches its seat the
cylindrical valve slides with it and the solid portion thereof closes the inlet opening
or inlet ports in advance of the closing of the valve piece to its seat whence the valve
piece is relieved from shock.
The operation of the valve piece to and from its seat will be by float lever or direct
float lift or by thumb button or lever, or by screw or cam, or other use according to
circumstances and so also will vary the form of the following sliding ported cylinder
or part cylinders for relieving the inlet pressure during the closing motion of the
valve proper. In like manner the uses to which the valves so regulated or arranged
may be put will admit of great variety such as the control of the flow of water, both
hot and cold, regulating chambers of steam or hot water pipes, vent chambers of hot
air apparatus and other uses.
In the accompanying drawings I have shown my invention applied to valves of the
character the subject of Letters Patent granted to me and dated and numbered as
follows that is to say August 28. 1884; 11727-January 8th 1885 No. 272
August 26th 1885 No. 10125 and 9th November 1887 No. 15275 but I do not confine
its adaptation to the particular arrangements of valves as the same may be adapted
to valves channels of supply having like capability of regulation by attachment
of the regulator described to the valve piece for opening and closing the supply
aperture.
DESCRIPTION OF THE DRAWINGS.
Fig. 1. is a transverse section of a valve arranged with the line of flow in the
inlet tube at right angles to the plane of motion of the valve piece and the sliding
regulator is in one with the valve piece and the outlet is substantially in line with the
inlet passage.
Fig. 2. is a liko view of a modification of the foregoing in which the cylindrical
sliding part slides upon a projecting tube applied to the inlet tube, and is separate
from the valve piece.
Fig. 3 shews substantially this same arrangement applied to a valve having its
inlet passage in line with the plane of motion of the valve piece and the outlet
may be at right angles or inclined to the inlet passage. The passages of communi-
cation from the sliding cylindrical part to the valve chamber are here shewn as a
series of holes f³.
•
Fig. 4 shews a similar form of valve but with the port in the cylindrical sliding
port inclined instead of at right angles to the plane of reciprocation (as in Fig. 2) so
as to attain greater delicacy of regulation.
Fig. 5 is another modification in which the cylindrical sliding part of the
regulator reciprocates within instead of on the exterior of the fixed tubular part
thereof.
Fig. 6. shews an arrangement in form of valve and regulator similar to Fig. 4.but
slightly modified to adapt it for both uses with the inlet passage situated directly
beneath the valve piece and the direction delivery reversed or nearly so.
Figs. 7, 8, 9, 10, 11, 12, 13, and 14, are views of details.
a is the inlet passage, 6 the case, ca screw cap closing the opening provided
for access to the valve piece e located in the valve, chamber, d is a spindle or stem for
actuating the valve piece e to the face of which it is connected either by fixed screw
or sliding attachment. A press button d' is provided in Figs. 1 and 2 for working
the valve piece e, whilst in Figs. 3, 4 and 6 this is effected by cam motion d³
actuated by swing arm d. f is a cylindrical sliding part for regulating the flow
of. fluid, formed in Fig. 1 in one piece with the valve piece e and divided across
its interior transversely by a plate having an opening f' in it for the exit of air or

page_text: Within the
before
liquid enclosed in its rearward division or as will be described this sliding regulator
may be formed in two parts one fixed and the other sliding in, or on it.
chamber formed by this division and the part of the valve case b formed for the
cylindrical sliding part to reciprocate in, is contained a spring g which pressing against
the inside of the cap c and the dividing plate f¹ keeps the valve piece e to its seating.
The front division of the sliding part has lateral ports f³ cut in it.
When the press
button is pressed inwards the ports come in line with the inlet passage a,
any flow can take place, at which time the valve piece e is well away from its seating;
and when the pressure on the button d¹ is removed the inlet passage a is closed by
the solid portion of the sliding part f, before the valve piece e is again seated. The
pressure of the fluid is thus borne by the cylindrical sliding part instead of by
the valve piece e, whereby the latter is relieved from sudden shocks or concussions.
In Fig. 2 the sliding part f is arranged to slide upon a projecting cylindrical part c¹
closed at its inner end and terminating at its outer end with a screw-cape by
which it is secured to the casing b at right angles to the inlet tube. This cylinder c¹
has lateral ports c² c³. The sliding port is separated from the valve piece e but
may be connected to it by a projecting knob, in its end, taking into a projecting
fork e on the face of the valve piece. On the other face of the valvo piece is
another fork which engages with a knob on the rod d. The spring g in this
modification is enclosed in a chamber g¹ and abuts against a washer g² and against
an enlargement d² on the rod d, pressing the latter outwards & thereby holding the
valve piece è to its seating. is a screw cap closing the entrance to the valve
chamber for removal of the valve piece e. In operation no flow of fluid can take
place through the valve until the ports f³ in the sliding piece f, coincide with the
ports in the cylindrical part c¹, at which time the valve piece e is well clear of its
seating and thus escapes any sudden shock due to inrush of fluid. In a similar manner
as the valve closes under pressure of the spring g the port c² is covered by the solid
portion of the sliding part before the valve piece e reaches its seating, and
accordingly the valve piece avoids the shock due to sudden stoppage of the flow of
fluid.
In Figs. 3 and an arrangement is shewn in which the regulator is applied to a
valve having its inlet passage in a line with the plane of motion of the valve piece
with the outer end of the cylindrical part c¹ open and the inlet passage tapped to
receive it. This valve is, as shown, operated by a tilting action of the lever d' instead
of by pressing in a button as in Figs. 1 and 2.
Figs. 7 and 8 are separate views of the fixed cylindrical part c¹ and sliding part f
respectively shewn in Fig. 4. Fig. 9 is an external view of the parts c¹ &f assembled
together in their open position.
In some cases where the pressure is very high, I find it advantageous to use an
extra resistance tube piece i, screwed within the fixed cylindrical part c¹. In Fig. 10
such a tube piece is shewn applied to the regulator illustrated in Fig. 4. Fig. 11
shows the extra piece i separately.
Fig. 5 is a modification in which a cylindrical piece f having openings or ports f¹
and, of which¹ is brought coincident with a corresponding opening c² in the outer
cylindrical part c¹ when the valve piece e is moved off its seat sufficiently to permit
flow of liquid and which opening in such cylinder is caused to come in opposition to
a solid part of the other cylinder and obstruct flow in advance of actual closing of
the valve piece e the liquid admitted by the openings f" c³ when coincident escapes by
other openings in fat f and f³ to the valve chamber in which is located valve piece e.
Access of liquid takes place by the space around the cylinder c between it and the
interior of the valve stem. In this instance the valve stem is moved to and fro by
rotating the screw formed thereon, in the corresponding female screw in the valve
case, by means of the handle wheel d³. The fixed part c¹ and sliding cylindrical part f
are shewn separately by Figs. 12 and 13.
Fig. 6 is similar in general arrangement to Fig. 4 differing only in details as to
position of outlet relatively to the valve piece and in that the motion to open the
valve is attained by pressing back the button lever d in the direction of the arrow to

page_text: move the stem d downwards against the expansive action of the coiled spring g within
the packed chamber g¹.
Fig. 14 shews another modification, the outer cylindrical part c¹ having an annular
groove c³ cut in it, wherein the sliding part reciprocates. Movable air valves and
pins c, c may be applied to the groove c³, that resistance due to the atmosphere may
be avoided.
Having now particularly described and ascertained the nature of my said Inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a valve the arrangement or combination with the valve closing piece as e of a
sliding regulator f, or divided regulator in two parts and c', adapted to close the
passage of flow, the regulator shutting off flow in advance of the closing of the valve
piece to its seat as and for the purposes described.
2. The various combinations or arrangements of parts of valve apparatus substantially
as shown and described or any mere modifications thereof.
Dated this 20th day of Santember 1888
WM. BROOKES & SON,
55 & 56, Chancery Lane, London,
Agents.