Improvements in Full-way Valves.
Year: 1894

page_text: Date of Application, 10th May, 1894
Complete Specification Left, 9th Feb., 1895-Accepted, 16th Mar., 1895
TRU
Improvements in Full-way Valves.
I GEORGE HENRY KENDALL, of Firth Street, Huddersfield, Yorkshire,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention refers to full-way valves for steam, water, and other liquids or
fluids and my improvements therein consist in constructing the valve with one of
its seatings interchangeable so that it can be taken out, ground, or otherwise
repaired and replaced again or a new one substituted without disturbing the body
of the valve or removing it from the pipe, said interchangeable seating being
secured in the casing by a flange with a hexagon end which forms a union and will
dispense with some of the unions now required to couple pipes together; or said
seating may be cast with a hexagon end in which case the union will not be
required; also in making the valve with one face parallel with the axis of the
spindle and the other face iuclined or wedge shaped.
For the purpose of my invention the valve casing or body is made of any suitable
shape or design and the spindle may either work through a nut to raise and lower
the valve or the valve may be raised and lowered on the spindle by the rotation of
the latter. The valve facing at one side is inclined or wedge shaped and is adapted
to engage with a correspondingly inclined seating in the body of the casing and to
make a tight joint therewith when the valve is closed. The said inclined seating is
let into a recess in the casing and is forced tightly home by means of the pressure
of the valve. The opposite face of the valve is made parallel with the axis of the
valve spindle and fits against a correspondingly faced seating screwed into the
casing from the outside. The said seating is held in position by a flange secured
by set screws to the valve casing, such flange having a hexagon end which is tapped
internally to receive the end of the inlet or outlet pipe according to the position in
which it is placed. This said flange forms a union and is easily and quickly
removed when the seating has become worn or faulty and requires to be ground or
repaired or a new one substituting therefor, such seating having recesses or key-
ways on the outer sides for the reception of a key by which it may be screwed into
or out of the casing. Instead of the union or flange I may cast the seating and
hexagon end in one piece.
The valve face may also be interchangeable by forming it separate from the
valve and screwing it into the latter.
By the means above set forth the valve and its seatings can be repaired or
re-ground without having to remove the body of the valve from its connections and
return it to the makers; durability of the parts is ensured, there is less liability of
jamming, silting, or choking up, and the destructive action of sediment or grit is
reduced.
ليم
1
•
TASKER & CROSSLEY,
Huddersfield, Agents.

page_text: I, GEORGE HENRY KENDALL, of Firth Street, Huddersfield, Yorkshire,
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 :-
This invention refers to full-way valves for steam, water and other liquids or
fluids, and my improvements therein consist in constructing the valve with two
dissimilar faces, one inclined or wedge shaped and the other parallel with the
spindle in making one of the valve seatings separate from the casing and
removable or interchangeable so that it can be taken out to be ground or other-
wise repaired and replaced again, or a new one substituted, without disturbing the
body of the valve or removing it from the pipe; and in providing means for
coupling the outlet pipe to the valve, whereby some of the unions now required to
couple pipes together will be dispensed with. For the purpose of my invention
the valve casing or body is made any suitable shape or design, and the valve
spindle may either work through a nut to raise and lower the valve, or said valve
may be raised and lowered on the spindle by the rotation of the latter. The
valve facing at one side is inclined or wedge shaped and is adapted to engage with
a correspondingly inclined seating in the body of the valve casing and to make a
tight joint therewith when the valve is closed. The said inclined seating may be
let into a recess in the casing and is forced tightly home by means of the
of the valve. The opposite face of the valve is made parallel with the axis of the
valve spindle and fits against a correspondingly faced seating screwed into the
casing from the outside. Over the said seating fits a flange secured by set
screws or bolts to the valve casing, such flange having a hexagon end which is
tapped internally to receive the end of the inlet or outlet pipe according to the
position in which it is placed. This said flange or its equivalent forms a union
or coupling and is easily and quickly removed when the seating has become
worn or faulty, and requires to be ground or repaired, or a new one substituting
therefor, such seating being provided with recesses or key ways for the reception
fa key by which it may be screwed into or out of the casing.
pressure
And in order that the said invention may be fully understood I shall now
proceed more particularly to describe the same and for that purpose shall refer to
the figures on the annexed sheet of drawings, whereon :-
Fig. 1 is sectional elevation of a full-way valve constructed and arranged
according to my invention, and Fig. 2 is elevation thereof in perspective.
Figs. 3 and 4 are modifications of parts of the valve hereafter referred to.
On the drawings letter A represents the body or casing of the valve, B the
valve spindle provided with hand wheel C for actuating it, D the stuffing box,
E the gland secured in the stuffing box by nut F, G the packing to make the joint
water or steam tight, and H and I the inlet and outlet pipes respectively.
The said parts are common to all valves, and, although for the purposes of my
invention, they may be arranged and put together in any known manner, I prefer
the arrangement shewn on the drawings, wherein a collar or flange B' on the valve
spindle is engaged between a shoulder D' formed in the stuffing box, and the end
of the part A' of the casing onto which the stuffing box is screwed, so that the
thrust of the spindle B will be against one or other of the two parts named instead
of upon the gland as formerly. The valve spindle B has a helical or coarse thread
formed on its lower end which takes into and engages with a corresponding female
thread formed through the valve J and when rotated in one direction or the other

page_text: causes the valve to work up or down thereon and open or close the thoroughfare
between the inlet and outlet pipes as is well understood.
The valve J has two dissimilar facings, that on the inlet side being inclined or
wedge shaped and engaging with a correspondingly inclined or wedge shaped
seating K, whilst the facing on the outlet or opposite side is parallel with the axis
of the valve spindle and works against a parallel seating L. By constructing the
valve with inclined and parallel faces adapted to engage with corresponding
seatings as shewn and described, a perfectly tight joint is always made, and any
grit or other foreign matter that may lodge on the seating L when the valve is
open is wiped or pushed off by the valve in closing, whereby the damage done to
the seating when grit is allowed to remain between the surfaces is avoided, and
there is less liability of jamming, silting or choking up of the valve.
The parallel seating L is screwed into the valve casing from the outside and
over it fits a flange M secured by bolts or set screws N to a flange A³ projecting
from the sides of the casing A. The said flange M is provided with a hexagon
end which is tapped internally to receive the screwed end of the outlet pipe I and
thus forms a union or coupling which can be easily and quickly disconnected and
removed when the valve seatings have become worn or faulty and require
re-grinding or facing, the seating L being then removable entirely from the valve
for such purpose and to give access to the seating K. The worn seating L can be
replaced by a new one whenever necessary.
The union or coupling M dispenses with the separate union or coupling now
required to couple the pipes after fixing the valve thereon and thereby saves
considerable time and labour in cutting, screwing, and connecting or disconnecting
the outlet pipe, and permits of the body of the valve remaining fixed to the inlet
pipe during repairs. The whole of the working parts of the valve are removable
again and again, each as it becomes worn, by the substitution therefor of duplicate
parts made to the same gauge.
In Fig. 3 I have shewn a modification of the union or coupling. In this case
a hexagon nut or circular ring M is employed instead of the flange M shewn in
Figs. 1 and 2 and is made separate from the nut M' into which the outlet pipe I is
screwed. The said nut or ring is first passed over the outlet pipe onto the end of
which the nut M' is then screwed and is secured to the valve by the said ring M
which is screwed onto the part A³ of the valve casing and engages with a flange on
the nut M and bolds it firmly in position. If a ring is employed I cut transverse
grooves a therein so that it can be screwed on or off the part A³ by a suitable key
or clamp.
The removable or interchangeable seating L shewn both in Figs. 1 and 3
has recesses or keyways b formed in the sides thereof to receive a key by
which to screw it into or unscrew it from the casing.
In large valves the parallel face may be made interchangeable with new ones by
making it separate from the valve and screwing it into a recess formed therein as
illustrated in Fig. 4.
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 :-
Firstly. In full way valves for water, steam and other liquids or fluids, the
employment of a valve having one of its faces inclined or wedge shaped and the
other parallel with the valve spindle each adapted to engage with or work against
correspouding valve seatings in manner and for purposes substantially as shewn
and described.
Secondly. In full way valves for water, steam and other liquids or fluids tbe
combination therewith of a separate removable valve seating such as L screwed
into or secured in the valve casing from the outside in manner and for purposes
substantially as shewn and described.
Thirdly. In full way valves for water, steam and other liquids or fluids the

page_text: combination therewith of a union or coupling adapted to be secured to the body of
the valve in manner and for the purposes substantially as herein shewn and
described.
Fourthly. The arrangement, construction and combination of parts forming my
improved full way coupling valve substantially as herein shewn and described.
Dated this 8th day of February 1895.
TASKER & CROSSLEY,
Huddersfield, Patent Agents.