Improvements in Stop or Regulating Valves.
Year: 1892

page_text: Date of Application, 19th Apr., 1892
Complete Specification Left, 19th Jan., 1893-Accepted, 11th Mar., 1893
PROVISIONAL SPECIFICATION.
Improvements in Stop or Regulating Valves.
1, THOMAS HENRY WARD, Engineer, 24 Church Lane, Smethwick, near
Birmingham, do hereby declare the nature of this invention to be as follows :-
The object of this invention, broadly speaking, is to obtain a valve more certain
of action, hence less likely for repairs &c., less bulky, weighty & costly, & of such
a nature that the trade can be supplied, whether for straight-through, elbow or
other angled valves, from one & the same set of parts & patterns, since the former
is convertible at will to one of the latter instantly after manufacture by the act of
adjustment only.
I provide what is known as Royle's Union Patent No. 4895 since void, & as
shown more clearly on Sheet 2 Figs. 7, 8 & 9 of that Specification, or as described
& illustrated in Fig. 7 page 19 of Unwin's Elements of Machine Design, Part 2,
Eleventh Edition. Between the joint formed by the two angled flanges which are
at about 45°, & better still, in a recess cut in one of the same, I insert a double
beated valve seat in the nature now of a disc plate & I provide two valves facing
each other closing onto this seat, one on each side of the same, actuated by means of a
central right & left handed screwed spindle, the axis of which is situated normally,
& which spindle is common alike, to both valves. Any rotary motion imparted to
this spindle by its handle serves to open, or to close these valves which move
axially, & in opposite directions, when prevented from rotating in the nature of
nuts upon the right & left handed screw respectively. I may prevent each valve
from rotating, by means of a lip or jaw on the periphery, engaging & sliding upon
a feather cast inside each half sphere or body for that purpose. A collar upon the
spindle may abut upon the inside of the outlet half of the body, serving thereby
as a fulcrum, or rather, carrying thereby the resultant thrust of the valves, more
especially when they are wholly or nearly closed, & situated immediately behind
the stuffing box. This spindle may extend beyond, through a boss projecting from
the outside flange to which pipes are attached. It may be screwed & provided
with a nut towards its end, & terminate with the usual hand-wheel beyond. A
sleeve may loosely be threaded on this spindle, passing through the outer boss
before mentioned, & terminate at the stuffing box as a gland, whilst the nut as just
mentioned may engage the outer end of this sleeve, thereby screwing home the
packing. Thus the spindle may be carried centrally & guide so, in two bearings
situated on the one half body for convenience. There is a slight axial play
provided to the spindle, to permit of automatic adjustment, when one valve almost
necessarily closes slightly before the other. The valve on the inlet side may have
a closed ended boss beyond the screw, thus avoiding any possible breathing or
leaking in case of a bad fitting screwed spindle.
The chances of an ordinary, honestly fitted valve leaking are small, yet trouble-
some & expensive when it does leak; but the chances of this particular combination
of a pair of valves, upon one common spindle & double beated seat, both leaking
at one & the same particular moment are so infinitely reduced, that any considera-
tions for easy access for repairs may be treated as unnecessary. Yet this access is
provide, inasmuch as the removal of the outlet half of this valve box releases,
instantly, both the valves & the seats, so that duplicate parts may be added in a few
moments.
The means of being able in this manner, that is, with a joint of about 45°, con-
sidered as a straight-through valve, to alter, at will, the direction of the outlet
branch pipe relatively to that of the inlet, need not here be discussed, since it is
clearly set forth in such references as before stated. But that embodyment, here

page_text: in combination, as a self-contained stop valve, acquired now for the first time, is of
value.
I have described what I believe to be the best & most useful form of this valve;
but I do not bind myself to the particular arrangements & combinations of details
as set forth, for there are modification possible, for examples, an ordinary arrange-
ment of stuffing box, the spindle may be carried on the other half, or between the
two, & so on; or even one such valve instead of two therein.
Dated this 16th day of April 1892.
COMPLETE SPECIFICATION.
Improvements in Stop or Regulating Valves.
THOMAS HENRY WARD Engineer 24 Church Lane Smethwick near
Birmingham 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 :-
The object of this invention broadly speaking is to obtain a valve more certain
of action, hence less likely for repairs &c., less bulky, weighty & costly, & of such
a nature that the trade can be supplied, whether for straight-through valve boxes,
or for right angled ones known as "junction," or for intermediate or even for angles
beyond the right angle, from one & the same sets of parts & patterns since the
former is convertable to one of the latter by the act of adjustment only.
I provide what is known as Royle's Union Patent No. 489578 since void, & as
shown more clearly on Sheet 2 Figs. 7, 8 & 9 of that Specification, or as described
& illustrated in Fig. 7 page 19 of Unwin's Elements of Machine Design, Part 2
Eleventh Edition.
Between the joint formed by the two angled flanges, which are at about 45°, &
better still in a recess cut in one of the same, I insert a double-beated-valve-seat in
the nature, now, of a disc plate; & I provide two valves facing each other, closing
onto this common double seating, one on each side of the same, actuated by means
of a central right & left handed screwed spindle, the axis of which is situated
normally, & which spindle is common alike to both valves. Any rotary motion
imparted to this spindle by its handle serves to open or to close these valves, which
move axially, & in opposite directions when prevented from rotating in the nature
of nuts upon the right & left handed screw respectively. I may prevent each valve
from rotating by means of a lip or jaw, on its periphery, engaging & sliding
upon a feather cast inside each half-sphere or body for that purpose. A collar,
upon the spindle, may abut upon the inside of the outlet half of the body, serving
thereby as a fulcrum, or rather carrying the resultant thrust of the valves, more
especially when they are wholly or nearly closed, & situated immediately behind
the stuffing box. The spindle may extend beyond, through a boss projecting from
the outside flange to which pipes are to be attached. It may be screwed &
provided with a nut towards the end, & terminate with the usual hand wheel
beyond. A sleeve may loosely be threaded on this spindle passing through the
outer boss before mentioned, & terminate at the stuffing box as a gland; whilst the
nut, as just mentioned, may engage the outer end of this sleeve, thereby screwing
home the packing. Thus the spindle may be carried centrally, & guided so in two
bearings situated on one half body for convenience.
There is a slight axial play provided to the spindle to permit of automatic adjustment
when one valve, almost necessarily, closes slightly before the other. The valve, on
the inlet side, may have a closed ended boss beyond the screw, thus avoiding any
possible leaking up the same, however remote.
The chances of an ordinary fitted valve leaking is small, but the chances of this
particular combination, of a pair of valves upon one common spindle & double-
beated-seat, both leaking at one & the same particular moment are greatly reduced,

page_text: so that any consideration for easy access for repairs may be treated as unnecessary'
Yet this access is provided, inasmuch as the removal of the outlet half of this
valve-box releases instantly, both the valves & the seats, so that duplicate parts may
be added in a few moments.
The means of being able, with the flange in this manner, i.e. with a joint of about
45°, considered as a straight-through valve, to alter at will, the direction of
the outlet branch pipe relatively to that of the inlet, need not here be discussed
since it is clearly set forth in such references as before stated. This embodyment
here in combination as a stop valve, acquired now for the first time is of value.
Figure 1, in the accompanying drawing, shows a horizontal section of the valve
box, & it will be seen that it has been set as suitable for a right angled valve box.
A is the inlet branch & B the outlet, C is the division plate forming the valve seats,
situated at about 45° with the branches. D₁ & D, are the valves. E is the valve
spindle screwed right & left handed for the respective valves, F the stuffing box.
Ha collar formed on valve spindle which seats on the inside of the stuffing box as
an abutment. J is a thick, easy fitting washer formed as a neck ring to the stuffing
box. K is a sleeve, preferably a brass tube surmounting the spindle. M is a
washer serving as a gland to the stuffing box when thrust forward by the sleeve.
The spindle being carried in two bearings P & J, is thereby held centrally in
position, whilst the valves having lugs Q₁ & Q, engaging feathers S₁ & S,
respectively, are prevented from rotating, thus closing onto the seats when the
spindle is rotated. It is imperative that the outlet valve D₁ closes slightly first,
thereby enabling automatic adjustment, by drawing the spindle bodily inwards &
from off its abutment, until the other valve seats itself. The packing in the stuffing
box F is screwed home by merely turning the nut R, & vice versa, in case it has to
be taken out. Preferably, the hand wheel S is screwed as a nut & a lock put
is provided on either side of the same or it may be keyed if advisable. By turning
the one half body round, for example until T is opposite to V it becomes a straight
through valve, the intermediate positions giving other angles. Y are bolts
connecting the two halves together.
I have described what I believe to be the most useful form of this valve, but I
do not bind myself to the particular arrangement as set forth, for example, instead
of a pair of valves, one valve alone, say on the outlet side may be provided,
in which case it would still be advisable to have the end of the projecting screwed
spindle passing through the valve bonnetted, as in the case of the inlet valve D₁ as
shown on drawing.
Having now particularly described & ascertained the nature of the said inven-
tion, & the manner in which the same is to be performed I declare that what I
claim is :
(1) In stop or regulating valves the arrangement & combination of parts
consisting of a valve box, with an inlet branch at one side & an outlet at the other;
which valve box is formed or made in halves each containing an internally screwed
valve, & such halves being bolted or otherwise secured together with a division
plate communicating at the centre in between them which plate serves as a valve
seat, front & back, to the valves in question facing each other & close thereon from
opposite directions when actuated by the right & left handed screw provided
for that purpose & common alike to both, substantially & for the purposes as
herein before described & illustrated in the accompanying drawings.
(2) In stop or regulating valves the arrangement & combination of parts con-
stituting the stuffing box with its spindle & abutment & neck ring, gland, tube &
adjustment nut, substantially & for the purposes hereinbefore described & illustrated
in the accompanying drawings.
(3) The mode of centrally guiding the valve spindle & of allowing the slight
automatic adjustment for the valves axially when closing, substantially as herein-
before described & illustrated in the accompanying drawing.

page_text: (4) In stop or regulating valves the combination of claiming clauses No. 1 &
No. 2 so likewise the further combination with No. 3.
(5) In stop or regulating valves the arrangement & combination of parts
substantially & for the purposes hereinbefore described & illustrated in the
accompanying drawing.
Dated this 18th day of January 1893.