IMPROVEMENTS IN VALVE APPARATUS FOR CONTROLLING THE PASSAGE OF WATER OR OTHER FLUIDS
Year: 1875

page_text: LETTERS PATENT to Samuel Farnsworth, of Mansfield, in the County
of Nottingham, Engineer, for the Invention of "IMPROVEMENTS IN
VALVE APPARATUS FOR CONTROLLING THE PASSAGE OF WATER OR OTHER
FLUIDS."
Sealed the 31st August 1875, and dated the 6th March 1875.
PROVISIONAL SPECIFICATION left by the said Samuel Farnsworth at
the Office of the Commissioners of Patents, with his Petition, on
the 6th March 1875.
I, SAMUEL FARNSWORTH, of Mansfield, in the County of Nottingham,
Engineer, do hereby declare the nature of the said Invention for "Im-
'PROVEMENTS IN VALVE APPARATUS FOR CONTROLLING THE PASSAGE OF WATER OR
OTHER FLUIDS," to be as follows:-
The object of the Invention is to arrange the parts that whilst the
passage for the flow of the water or other fluid may be fully closed
when desired a clear and uninterrupted way may be obtained for the
flow of such liquid or fluid when desired by the valve and parts acting
therewith for closing such passage, being then taken fully out of the

page_text: course of the current. For this purpose I form a chamber with inlet
and outlet passages for connection by flanges or otherwise to the
required connecting piping. One of these passages from this chamber
is formed as a valve seat to receive the valve, and the valve is formed
with a short stud or projection, by which, and a pin or pivot, it is con-
nected to a lever arm, this pin connection giving the valve slight play
to enable it correctly to find its true fitting position in the seat. This
lever arm is supported to turn upon an axis of motion in the upper part
of the chamber above the fluid way, and it has applied to it a segmental
rack of teeth, which aro taken into by a worm wheel also supported by
its spindle within the chamber. The spindle of this worm wheel rises
up through suitable packing to the exterior, and is there provided with
a handle, wheel, or other means for turning it, so that by turning this
spindle the valve may be closed or opened to the extent desired, and
when fully opened a clear unobstructed passage is obtained.
segment may in some cases be applied externally of the valve apparatus
upon the axis of the valve lever, and which axis will then pass out
through suitable packing. The segment will then be operated by an
external screw thread.
Tho
SPECIFICATION in pursuance of the conditions of the Letters Patent, 2
filed by the said Samuel Farnsworth in the Great Seal Patent Office
on the 3rd September 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
FARNSWORTH, of Mansfield, in the County of Nottingham, Engineer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixth day of March, in the year of
our Lord One thousand eight hundred and seventy-five, in the thirty-
eighth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Samuel Farnsworth, Her special
license, that I, the said Samuel Farnsworth, my executors, admini-
strators, and assigns, or such others as I, the said Samuel Farnsworth,
my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, a

page_text: use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN VALVE APPARATUS FOR CONTROLLING THE PASSAGE OF WATER
OR OTHIR FLUIDS," upon the condition (amongst others) that I, the said
Samuel Farnsworth, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals, should
particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the same
to be filed in the Great Scal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Samuel Farnsworth, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement thereof, that is to say:—
The object of the Invention is to arrange the parts that, whilst the
passage for the flow of the water or other fluid may be fully closed when
desired a clear and uninterrupted way may be obtained for the flow of
such liquid or fluid when desired by the valve and parts acting therewith
for closing such passage being then taken fully out of the course of the
current. For this purpose I form a chamber with inlet and outlet
passages for connection by flanges or otherwise to the required con-
necting piping. One of these passages from this chamber is formed as
a valve seat to receive the valve, and the valve is formed with a short
stud or projection, by which and a pin or pivot it is connected to a
lever arm, this pin connection giving the valve slight play to enable it
correctly to find its truc fitting position in the seat. This lever arm is
supported to turn upon an axis of motion in the upper part of the
chamber above the fluid way, and it has applied to it a segmental rack
of teeth, which are taken into by a worm wheel also supported by its
Ospindle within the chamber. The spindle of this worm wheel rises
up through suitable packing to the exterior, and is there provided with
a handle, wheel, or other means for turning it, so that by turning this
spindle the valve may be closed or opened to the extent desired, and
when fully open a clear unobstructed passage is obtained. The segment
5 may in some cases be applied externally of the valve apparatus upon the
axis of the valve lever, and which axis will then pass out through suitable
packing. The segment will then be operated by an external screw
Almond

page_text: But that the Invention may be better understood I will by the aid
of the accompanying Drawings proceed to describe more in detail means
pursued by me in carrying the same into effect.
Figure 1 shows an external side view; Figure 2, a section; Figure 3,
an end view; and Figure 4 a plan view of one arrangement of valve
apparatus constructed according to my Invention.
Figures 5 and 6 show separate views of parts of this valve separately
and to a larger scale.
Figure 7 shows a modification in the construction of the valve.
In cach of the Figures the same letters are employed to indicate
corresponding parts.
a is the chamber of the valve apparatus formed to receive the valve
and parts thereof; bare the inlet and outlet passages to the chamber a.
The inner end of one of these passages is formed as a seat for the
valve c, and this valve is formed with a projection c', which is received
into a socket or chamber formed for it in the lever arm d, and it is then
connected to that arm by a pin or pivot c to admit of slight play to the
valve c, and thereby to insure its true fitting on the valve seat. The
lever arm d is supported to turn on the axis d', and it is also formed
with a segmental rack &, the teeth of which are formed to be taken into
by the teeth of the worm wheel e. This worm wheel e is applied to the
end of a spindle e', which is formed to turn in a bearing formed for it
in part of the chamber a, and it is there held by suitable packing and
screw or other cap, so as to prevent the escape of water or other fluid in
that direction, and this spindle e' is turned for opening or closing the
valve c by a handle wheel e*, or it may be by a key or otherwise. Tho
chamber a is formed with one side a¹ moveable, and so as to be held
correctly in position by screw nuts a², as shown, to facilitate access to
that chamber and the valve and parts contained therein.
Figure 5 shows a side view and an under side view of the lever arm d
separately.

page_text: view of a slight modification of the valve c by the absence of any
packing to it, as in the previous Figures.
"
Figures 8 and 9 show by plan and side views a slight modification of
the above, in which in place of the tooth segment & being formed on.
the lever arm d, such teeth are formed on a separate segment, which is
affixed externally of the case of the valve c and on one end of the axis d
of the lever arm d, so that the segment & and the screw e for working
it, and thereby operating the valve c, are both external. The valve
faces and their seats may however be conical, spherical, or of other
desired Figure, and may be formed of the like or different metal, or one
or both of them of leather, india-rubber, or other suitable material,
according to the purpose to which the valves are to be applied.
Having thus described the nature of my said Invention, and means
which I adopt in carrying the same into effect, I would have it under-
stood that I do not confine myself to the precise arrangements of parts,
as shown and described; but what I do claim is, the arranging or com-.
bining parts of valve apparatus for controlling the passage of water or
other fluids, whereby parts c, c', and d, d', are applied and operated so
as to secure an accurate and efficient adjustment of the valve to its seat
in manner substantially as described.
In witness whereof, I, the said Samuel Farnsworth, have hereunto
set my hand and scal, this First day of September, in the year
of our Lord One thousand eight hundred and seventy-five.