Year: 1898

page_text: I, JOSEPH SHAW, of Albert Works, Lockwood, Huddersfield, in the County of
York, Brass Founder and Finisher, do hereby declare the nature of this invention
to be as follows:-
This invention relates to taps and valves for water and steam or other liquids
or fluids and consists firstly in employing a hard metal such as phosphor bronze
or other like metal made of any mixture of metals suitable for the purpose to
form the seating of the valve, such hard metal seating being placed in position
in the mould when casting the valve casing or body, and thus cast in one piece
therewith. The haid metal seating thus provided is not readily affected by the
action of water oi ateam and is practically indestructible, keeping a true unpitted
or unindented surface throughout the life of the valve and therefore reducing
the cost of maintenance and minimising leakage Should the seating in time
be slightly affected by the liquid or fluid, on the gunding action of the valve, it
can be easily re-faced by a cutting tool.
My invention consists secondly in employing a loose valve of spherical, mush-
room, or other suitably rounded shape both on the face and rear sides, or the
face side may form the fiustrum of a cone. The valve shank 18 made taper and
enters an opening in the end of the valve spindle in which opening it has a
little play and will allow the valve to move from side to side, as though mounted
on a pivot The mouth of the opening in the end of the valve spindle 18 curved
or concaved to correspond with the rear surface of the valve which fits in same
after the manner of a ball and socket joint and is moveable in any direction. By
constructing and arranging the valve as described it will always seat itself truly
on the valve seating whether the valve spindle be screwed down true or other-
wise. Resting on a shoulder or collar on the end of the valve spindle 19 a washer
which, when the valve is fully opened, makes a tight joint with the end of the
nut through which the spindle works and effectually prevents the escape of water
or steam
The stuffing box ordinarily employed is preferably retained. When
the valve is open to the full the tight joint made by the washer permits of the
stuffing box being opened for repairs or other purposes
101
T
1000

page_text: I, JOSEPH SHAW, of Albert Brass Works, Lockwood, Huddersfield, in the County
of York, Brass Founder and Finisher, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement, —
-
This invention relates to taps and valves for water and steam or other liquids
or fluids, and consists, firstly, in employing a hard metal, such as phosphor bionze,
or other like metal made of any mixture of metals suitable for the purpose, to
form the seating of the valve, such hard metal seat being placed in position in
the mould when casting the valve casing or body and thus cast in one piece
therewith or said seat may be screwed into the valve casing This haid metal
seating is not readily affected by the action of water or steam and is practically
indestructible, keeping a true un-pitted or undented surface throughout the life
of the valve and therefore reducing the cost of maintenance and minimising
leakage
The
My invention consists secondly in employing a loose valve of spherical, mush-
room or other suitably rounded shape both on the face and on the rear side or
the fare side may form the fiustrum of a cone The valve shank 18 made tapai
and enters an opening in the valve spindle in which it has a little play and will
allow the valve to move from side to side as though mounted on a pivot
mouth of the opening in the end of the valve spindle is curved or concaved to
correspond with the rear side of the valve which fits in same after the manner
of a ball and socket joint By constructing and ananging the valve as described
it will always seat itself truly on the valve seating whether the valve spindle
be screwed down true or otherwise. Resting on a shoulder or collar ou the end
of the valve spindle is a washer or packing ing which, when the valve is fully
opened, makes a tight joint with the end of the nut or upper part of the valve
casing through which the spindle works and effectually prevents the escape of
water or steam from the valve The stuffing box ordinarily employed to seal
the valve is retained so as to act at times when the valve is only partially opened.
The tight joint made by the washer permits of the stuffing box being opened or
removed for repaus or other purposes without shutting oft steam
In order that my said invention may be fully understood, reference is herein-
after had to the annexed sheet of diawings forming a part of this specification,
in which
-
Fig 1 is vertical section of a steam or water tap on valve shewing the appli-
cation of my improvements, and
Fig 2 is plan of the valve seat
Refening to the drawings, letter a represents the body or casing of the valve;
the valve spindle which is actuated by hand wheel c oi by a key, d the valve,
and e the valve seating
The said seating e, according to my invention, is made of a hard metal, such
as phospho bronze or other like metal made of any known mixture of metals
or alloys which is harder than the metal of which the valve casing is composed,
and it may be placed in position in the mould when casting the body a so as to
form one piece therewith, although I find it answers better, and, therefore, prefer
to provide the seat e with an external screw thread adapted to take into a corre-
sponding internal screw thread chased on cut in the sides of a central opening
in the valve casing into which the seat 18 screwed, as shewn on the drawings,

page_text: such seating having lugs or short projections e¹ (Fig. 2) to receive and hold a
tool or key inserted in the seating for screwing it into or unscrewing it out of
the valve casing.
The hard metal seating with which the valve or tap 18 thus provided is not
readily affected by the action of water or steam and is practically indestructible,
keeping a true oi undented face for a considerable time and therefore reducing
the cost of maintenance and minimising leakage In the event of the seating,
in course of time, being slightly affected by the liquid or fluid or the grinding
action of the valve thereon, it can readily be refaced by a cutting tool, or changed
for a fresh one without removing the body or casing a from its position.
The face of the seat e is suitably rounded or hollowed at its inner upper edge
to receive and make a tight joint with the convex or rounded face of the
valve which is preferably of spherical or mushroom shape and 18 separate from
the valve spindle b The back or upper side of said valve is also curved or
made convex or conical, and a correspondingly curved or shaped opposing sur-
face is likewise formed at the end of the valve spindle 6 into a cential opening
in which enters and is supported therein the valve shank d³, such said valve shank
being made slightly taper, or of smaller diameter than the opening in the spindle,
in order to allow a certain amount of play to the valve shank When the valvo
spindle is screwed down to close the valve as indicated in dotted line, the end or
mouth of the spindle 6 fits over and engages the side of the valve d some-
what after the manner of a ball and socket joint, allowing said valve to move
in any direction, if so constrained, as though on a pivot, the provision specified
for permitting angular movement of the valve shank ensuring the tiue centreing
or seating of the valve on the seat e in all cases, whether the valve spindle bo
screwed down time or otherwise, and accomodating itself to any variation in the
valve spindle arising from wear or strain The said valve in addition to being
self-centreing, makes a most reliable metal to metal joint that will resist any
pressure, it is simple and strong and is not liable to get damaged.
Resting loosely on a shoulder or collar 6 on the lower end of the valve spindle b
18 a washer or packing ing f, which, on the said spindle being unsciewed to
the full extent, as shewn in full line in Fig 1, to allow the valve d to be opened
to the full by the pressure of water or steam, will make a tight joint with the end
of the nut or upper part g of the body of the valve, through which the spindle b
works, and effectually prevent the escape of water or steam. The stuffing box h
ordinarily employed is retained to prevent any escape of steam or water when
the valve is only partially opened or closed but, as the valve is more commonly
opened to the full extent, the steam tight joint made by the washer f in such
case is quite sufficient apart from any other packing and will admit of the stuffing
box h being unpacked or removed from the valve for repairs or other purposes
during the time the valve 18 open.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim 18.-
(1) In taps or valves for water, steam and other liquids or fluids the combin-
ation of a loose valve having a spherical, mushroom, or other suitably rounded
or conical face and a rounded on convex upper or rear surface, a valve spindle
dished or concaved at its lower or inner end and adapted to fit over and engage
with the upper or rear surface of the valve against which it is screwed to close
the valve, and a central opening in the valve spindle to receive the valve shank
and allow a little play to same all arranged and acting in the manner and for
purposes substantially as herein shewn and described.
(3) In taps or valves for water and steam or other liquids or fluids the combin-
ation of the valve d having convex or rounded obverse and reverse faces, a valve
spindle dished or concave at its inner or lower end for engaging the surface dª
of the valve and having a central opening to receive the tapered shank of the

page_text: valve and a valve seat composed of a harder metal than the body or casing of
the valve substantially as set forth
(3) In taps and valves for water and steam or other liquids or fluids a washer
or packing ring such as f surrounding the valve spindle and resting on a shoulder
or collar on the end thereof and adapted when the valve 18 fully opened to make 5
a steam or water tight joint with the nut g or its equivalent substantially as
Bet forth.
Dated this 9th dow of March 1800
TASKER & CROSSLEY,
Patent Agents, Huddersfield, Agents for Applicant.