IMPROVEMENTS IN VALVES
Year: 1878

page_text: LETTERS PATENT to Henry John Pearson, of the Firm of Foster and Pearson,
of Beeston, in the County of Nottingham, Horticultural Builders, for the
Invention of "IMPROVEMENTS IN VALVES."
PROVISIONAL SPECIFICATION left by the said Henry John Pearson at the
Office of the Commissioners of Patents on the 14th February 1878.
HENRY JOHN PEARSON, of the Firm of Foster and Pearson, of Beeston, in the
IMPROVEMENTS IN VALVES."
County of Nottingham, Horticultural Builders.
"
Each valve consists of a metal case, the ends of which form sockets or spigotts to
receive or enter the ends of the pipes to which the valve may be applied; the case
is slotted longitudinally on the top side, and is fitted with a cap of metal provided
with a stuffing box, through the side of which a pin is secured, this pin takes into
a recess formed by a portion of a flange on a winged spindle being cut away, thus
regulating the opening or closing of the valve; and also prevents the valve wing
being turned the wrong way. The spindle is passed through the stuffing box and
terminates at its lower end in a pin which takes into a hole in the bottom of the
case.
The cap has a V on its under side which fits in the slot in the case, and is held in
place by screws; by such arrangements I am enabled to remove the working parts
of the valve for repairs or otherwise without having to remove any portion of the
valve seat or breaking the pipe connections.
A valve constructed as above described is applicable to water, steam, and gas pipes,
and for all purposes for which throttle valves are used.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Henry John Pearson in the Great Seal Patent Office on the 8th August
1878.
HENRY JOHN PEARSON, of the Firm of Foster and Pearson, of Beeston, in the
County of Nottingham, Horticultural Builders. "IMPROVEMENTS IN VALVES."
Each valve consists of a metal case, the ends of which form sockets or spigots to
receive or enter the ends of the pipes to which the valve may be applied; the case
is slotted longitudinally on the top side, and is fitted with a cap of metal provided
with a stuffing box, through the side of which a pin is secured; this pin takes into
a recess formed by a portion of a flange on a winged spindle being cut way, thus
regulating the opening or closing of the valve; and also prevents the valve wing
being turned the wrong way. The spindle is passed through the stuffing box, and
terminates at its lower end in a pin which takes into a hole in the bottom of the
case.
The cap has a V on its under side which fits in the slot in the case, and is held in
place by screws; by such arrangements I am enabled to remove the working parts
of the valve for repairs or otherwise without having to remove any portion of the
valve seat or breaking the pipe connections.
A valve constructed as above described is applicable to water, steam, and gas pipes,
and for all purposes for which throttle valves are used.
Figure 1 is an outer side view of my improved throttle valve case.
Figure 2 is a longitudinal section of the valve and case; Figure 3, a cross section
of the same.
And Figure 4 shows the stuffing box and cap in plan.
The several corresponding parts in each Figure are lettered alike.
Each valve consists of a metal case A, the ends of which may form sockets,
spigots, or flanges to receive or enter the ends of the pipes to which the valve may
be applied.
The case may be slotted longitudinally on the top, bottom, or on either side, and
is fitted with a cap of metal B provided with a stuffing box C, through the side or
bottom of which a pin C, seen at Figure 3, is secured, this pin takes into a recess
formed by a portion of a flange on a winged spindle D being cut away, thus
regulating the opening or closing of the valve, and also prevents the valve being
turned the wrong way. The spindle is passed through the stuffing box and
terminates at its outer end in a crutch handle, or it may terminate in a square to
receive a lever handle. At its inner end the spindle terminates in a pin which
takes into a hole in the inside of the case.
The cap has a V on its under side which fits in the slot in the case, and is held in
place by screws, shewn at Figures 1, 3, and 4.
By a valve constructed as above described I am enabled to remove the working
parts for repairs or otherwise without having to remove the whole of the valve seat
or breaking the pipe connections.
A valve constructed as above described is applicable to water, steam, and gas
pipes, and for all purposes for which throttle valves are or have been used.
Having now described the nature of my said Invention and the nanner of per-
forming the same, I declare that I claim, for a longitudinally slotted throttle valve

page_text: case, substantially as herein-before described and illustrated in the accompanying
Drawings.
In witness whereof, I, the said Henry John Pearson, have hereunto set my
hand and seal, this Seventh day of August, in the year of our Lord One
thousand eight hundred and seventy-eight.
Witness,
H. W. GOUGH, C.E,
Nottingham.
HENRY JOHN PEARSON. (LS.)