Improvements in Valves and Taps.
Year: 1898

page_text: Date of Application, 16th May, 1898
Complete Specification Loft 15th Feb 1830 Accented 6th May
1200
PROVISIONAL SPECIFICATION.
Improvements in Valves and Taps.
WE, WILLIAM HENRY PLACE, of Ashleigh, Darwen, Sanitary Pipe Manu-
facturer, and DANIEL JOLLY, of 288, Manchester Road, Bolton, Engineer, both
in the County of Lancaster, do hereby declare the nature of this invention to be
as follows:-
This invention relates principally to such velves as are used for hydraulic
hoists or hydraulic presses and the like, but it is also applicable to other valves
and taps for controlling the passage of water or other liquid under pressure.
The principal features of novelty in this valve or tap are that the valve is always
in contact with its seating being held thereto by the actual pressure of the water,
and the opening or closing thereof is effected not by an endwise movement pro-
duced by a screw but by simply turning the valve round, so that no grit or other
solid matter can lodge between the valve and its seating and as the friction is
reduced to a minimum little or no force is required for either opening or closing
the same.
The body of the valve in its simplest form (say for a hydraulic lift) is divided
into two chambers (an inlet and an exhaust chamber) by means of a midfeather,
the inlet side of which is faced so as to form a water tight seating. The valve is
in the form of a moderately thick disc with a central rod or stem projecting from
each side.
The valve is placed in the inlet chamber. The face of the valve next to the
midfeather or seating is ground or otherwise faced so as to make a water tight
joint. The stem from the back of the valve passes out through a gland or
stuffing box and its outer end is squared or otherwise formed for convenience of
turning round.
A short inlet pipe admits the water under pressure into the inlet
chamber and acting on the back of the valve keeps the face thereof always in
contact with the seating. The stem from the face of the valve passes through a
central hole in the midfeather, through the exhaust chamber and its end turns in
a recess made in a screw plug for that purpose.
On one side of the the central opening there is a passage drilled straight through
the midfeather connecting the two chambers, and on the other side of the said
opening a hole is drilled to the centre of the midfeather leading to an outlet
formed at right angles thereto and leading to the cylinder or other place where
the hydraulic pressure is to be utilized.
The valve has three openings in the face, one straight through, and two about
halfway through connected together with a passage at right angles forming a
kind of D-valve and by turning the valve round in one direction by means of
a key applied to the projecting squared end of the stem, the inlet chamber may be
connected to the outlet tube so as to admit the water to the hydraulic cylinder,
and by turning the same in the reverse direction, the inlet will be cut off and the
exhaust opened.

page_text: When applying this valve to a hydraulic press where it is necessary that it
should be double acting so that the pressure of the water may be applied both to
raise and to lower the follower there will be two exit openings through the thick-
ness of the midfeather, and the exhaust will be carried out through the central
opening, the stem of the valve being bored hollow for that purpose.
The application of this invention to an ordinary tap is obvious. The inlet
passage for the water is below the diaphram or midteather which forms the vaive
seating. The disc valve works against the lower side of the midfeather which is
faced so as to form a seating. The valve is made with (say) three openings
straight through and the seating with corresponding openings which are opened
or closed by partially turning the valve in one direction or the other, the valve
stem passing out through a gland at the top and being furnished with a cross
handie or other equivalent, means for turning the same, the movement of the
valve being controlled by a short notch and screw pin or in any other suitable
manner.
The pressure of the water will keep the disc valve always up against its facing,
but to prevent it from becoming displaced in the event of the pressure being re-
moved a small screwed stud may project upwards from the centre of the screwed
plug which closes the hole through which the valve is introduced through the
bottom of the tap. This stud will not ordinarily quite touch the underside of:
the valve but will serve as a support thereto if the pressure should fail.
Dated this 14th day of May 1898.
GEO. DAVIES & SON,
Agents for the Applicants, 4, St. Ann's Square, Manchester.
Improvements in Valves and Taps.
WE, WILLIAM HENRY PLACE, of Ashleigh, Darwen, Sanitary Pipe Mana-
facturer, and DANIEL JOLLY, of 288, Manchester Road, Bolton, Engineer, both
in the County of Lancaster, 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 relates principally to such valves as are used for hydraulic
hoists or hydraulic presses and the like, but it is also applicable to other valves
and taps for controlling the passage of water or other fluid under pressure.
The principal features of novelty in this valve or tap are that the valve is always
in contact with its seating being held thereto by the actual pressure of the water,
and the opening or closing thereof is effected not by an endwise movement pro-
duced by a screw but by simply turning the valve round, so that no grit or other
solid matter can lodge between the valve and its seating and as the friction is
reduced to a minimum little or no force is required for either opening or closing
the same.
The manner in which our said invention is to be performed or carried into
practical effect will be readily understood on reference to the annexed sheet of
drawings and the following explanation thereof.
The body of the valve in its simplest form (say for a hydraulic lift see hori-
zontal section Fig. 1 and vertical section Fig. 2) is divided into two chambers
(an inlet a and an exhaust chamber b) by means of a midfeather c, the inlet side
of which is faced so as to form a water tight seating. The valve is in the form of
a moderately thick disc d with a central rod or stem e projecting from each side.
The valve d is placed in the inlet chamber a. The face of the valve next to the

page_text: m.dfeather or seating c is ground or other wise faced so as to make a water tight
Joint. ine stem e rrom une back of the valve passes out through a glanu or
stung box and its outer end is squared or otherwise formed for convenience
of turning round. A short inlet pipe y admits the water under pressure into the
in.et chamber a and acting on the back of the valve d keeps the race thereof
aways in contact with the seating c. The stem e rom the race or the valve
passes through a central hole in the midieather, through the exuaust chamber
and its end turns in a recess made in a screw plug or that purpose.
On one side or the central opening there is a passage deu straight through
the midieather connecting the two chambers, a and and on the other side of the
sand opening a hole is drilled to the centre of the undfeather leading to an
outlet & formed at right angles thereto and leading to the cynnder or other place
where the hydraulic pressure is to be utilized.
The valve d has three openings in the face, one d straight through,
and two d and a about half way through connected together with a passage
at right angles forming a kind of valve and by turning the valve & round in
one direction by means of a key applied to the projecting squared end of the
stem e, the inlet chamber a may be connected to the outlet tube (see Fig. 1) so
us to admit the water to the hydraulic cyinder, and by turning the same in the
reverse direction, the inlet will be cut off and the exhaust tube opened, see
Fig. 1.
When applying this valve to a hydraulic press where it is necessary, that it
should be double acting so that the pressure of the water may be applied either
to raise or lower the ram as shown in plan view at Fig. 3 and vertical section
Fig. 4, there will be two exit openings d and do through the thickness of the
midfeather, and the exhaust will be carried out through the central opening d',
the stem e of the valve being bored hollow for that purpose.
The application of this invention to an ordinary tap is obvious and is shown in
vertical section at Fig. 5 and horizontal section at Fig. 6.
The inlet passage for
the water is behind the diaphragm or midfeather which is faced so as to form a
seating. The valve d is made with (say) three or four openings straight through
and the seating c with corresponding openings which are opened or closed by
partially turning the valve in one direction or the other, the valve stem e passing
out through a gland f in front and being furnished with a cross handle or other
equivalent means for turning the same, the movement of the valve being con-
trolled by a short notch and screw pin nor in any other suitable manner.
The pressure of the water will keep the disc valve d always up against its
facing c, but to prevent it from becoming displaced in the event of the pressure
being removed a small screwed stud may project upwards from the centre of the
screwed plug which closes the hole through which the valve is introduced to its
facing in the tap. This stud will not ordinarily quite touch the underside of the
valve but will serve to keep the valve on its facing if the pressure should fail. Or
the inlet pipe m may be made so as to be screwed into the body of the tap, just
clear of the valve d as shown at Fig. 5.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
-
The improvements in valves and taps constructed and arranged substantially
as hereinbefore described and illustrated by the drawings annexed.
Ilated th: 141
GEO. DAVIES & SON,
Agents for the Applicants, 4, St. Ann's Square, Manchester.