IMPROVEMENTS IN VALVES, TAPS, OR COCKS.”
Year: 1876

page_text: LETTERS PATENT to William Page, of Newcastle-on-Tyne, in the same County,
Engineer, for the Invention of "IMPROVEMENTS IN VALVES, TAPS, OR COCKS.”
PROVISIONAL SPECIFICATION left by the said William Page at the Office
of the Commissioners of Patents on the 29th December 1876.
WILLIAM PAGE, of Newcastle-on-Tyne, in the same County, Engineer. "IMPROVE-
MENTS IN VALVES, TAPS, OR COCKS."
This Invention relates to valves, taps, or cocks, for steam, water, or other fluid,
in which the passage is straight through when the closing detail is or the closing
letails are open.
The closing details are moved across the line of the way or passage, and generally
in a vertical direction, a valve chamber being formed for them on a short pipe piece
made with faucet or other ends for connection in a line of piping, and they are
moved by means of one or two plain or screwed spindles passed through a stuffing
box in the outer end of the valve chainber.
The improved details are by preference introduced through an opening pro-
vided with a screwing or other cover, and formed in one of the sides of the valve
chamber.
Amongst the improved details are comprised two pieces which act as partners,
and one of which is a valve plate shaped and fitted to close tightly against a valve
seat, whilst the other is a partner plate or frame which may be fitted to close
tightly against a second seat facing the other one, or which without acting as a
valve may simply move across the passage so as to keep opposite or nearly opposite
to the valve plate and serve for closing and tightening the latter. The back or
inner side of the valve plate is made with a spherical cavity in which, in some
modification, there fits a ball, and this ball is acted on by a curved or inclined
surface formed on the back or inner side of the partner plate, so as when the partner
plate is forced down by the spindle, to close the valve plate firmly against its seat.
A screw spindle is applied for moving the partner plate, either by being tapped
through a lug thereon or by being fixed to the partner plate and tapped into the
end of a tubular spindle, which last passes out through the stuffing box; or the

page_text: partner plate may be moved by a plain spindle passing out through a stuffing box
and acted on externally by a lever or other mechanisın. Projections are formed on
the partner plate, or on the valve plate, or on both, to cause the one to move with
the other, but with a certain amount of play to allow of the complete closing action,
and which play causes the jamming of the valve plate to be released when opening
the valve on the partner plate being moved for opening before it moves the valve
plate. Guide surfaces are extended up into the valve chamber for the valve plate
to slide on when open. The use of the ball and the spherical cavity in which it
fits in the valve plate, whilst ensuring an even bearing, also allows of that plate
turning on its centre so as to become equally worn, and a slight turning action is
secured by forming in the valve chainber a small friction surface for the edge of the
valve place to touch just before it reaches its closed position, whilst a stop for
limiting its movement when closed is formed a little to one side and so as with such
friction surface to prevent the valve plate from moving laterally.
Instead of the ball there is in some modifications an eccentric spherical shell, one
side of which fits into the spherical cavity on the back of the valve plate whilst
the other side bears on a spheroidal projection on the back of the partner plate.
Or the spherical shell may have its inner surface bearing on the spherical lower end
of a piece interposed between it and the partner plate and having the spindle
applied to it, and the partner plate may be a close fitting valve plate and may have
a spherical cavity forined on its back to fit and turn on the spherical end of the
interposed piece. The thinner part of the spherical shell is uppermost, and the end
of the spindle, on screwing through the lug of the partner plate or of the interposed
piece when opening the valve, encounters it and insures its moving down relatively
to the other parts so as to relieve the jamming action.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Page in the Great Seal Patent Office on the 29th June 1877.
WILLIAM PAGE, of Newcastle-on-Tyne, in the same County, Engineer. "IMPROVE-
MENTS IN VALVES, TAPS, OR COCKS."
My said Invention relates to valves, taps, or cocks for steam, water, or other
fluid, in which the passage is an open way when the closing detail is or the closing
details are open.
The closing details are moved across the line of the way or passage and generally
in a vertical direction, a valve chamber being formed for them on a short pipe piece
made with faucet or other ends for connection in a line of piping, and they are
moved by means of one or two plain or screwed spindles passed through stuffing
boxes in the outer end of the valve chamber.
Amongst my improved details are comprised two pieces which act as partners,
and one of which is a valve plate shaped and fitted to close tightly against a valvo
sent, whilst the other is a partner plate or frame which may be fitted to close tightly
against a second seat facing the other one, or which without acting as a valve may
simply move across the passage so as to keep opposite or nearly opposite to the
valve plate and serve for closing and tightening the latter. A ball or spherically
surfaced piece is interposed between the valve plate and the partner plate, and in
consequence of the peculiar configuration of the parts causes the valve plate to be
tightly forced against its seat by a movement which the partner plate has in excess
of the valve plate after the latter has reached its closing position. On opening the
valve the jamming pressure is relieved prior to moving the valve plate from over
its seat. By the use of the ball or spherically surfaced piece the valve plate is
rendered free to turn on its centre, and it is inade to encounter a stationary frictional
surface when closing so as to he turned a little every time in order that the wear
on it may be equalised all round,

page_text: And in order that my said Invention and the manner of performing the same
may be properly understood, I hereunto append a Sheet of explanatory Drawings,
to be herein-after referred to, and representing various modifications of my improved
valves, taps, or cocks. In these Drawings the same reference numerals are used to
mark the same or like parts wherever they are repented.
In the modification shown in Figures 1 and 2 of the accompanying Drawings,
Figure 1 being a vertical longitudinal section, and Figure 2 an end elevation, the
valve chamber 1, 2, containing the closing details is formed in a usual way on a
short pipe piece made with screwed spigot ends 3, 4, for connection in a line of
piping, and a flat annular seat or face 5 is formed within the chamber 1, 2, to
receive the closing detail which is a circular valve plate 6 shaped and fitted to close
tightly against the seat 5, and having a spherical cavity formed on its back or
inner side in which there fits a ball 7. This ball 7 is between the valve plate G
and a partner plate or frame 8, which may be fitted to close tightly against a
second seat or face 9 facing the other one 5, or which without acting as a valve
may simply move across the passage 4, so as to keep opposite or nearly opposite to
the valve plate 6 and serve for closing and tightening the latter, the face 9 in this
case acting as a guide to the partner plate 8. The part of the partner plate 8
bearing on the ball 7 is curved or inclined so as, when the partner plate is moved
down, to force the valve plate 6 firmly against its seat 5 after its transverse move-
ment is completed.
In this modification a screwed spindle 10 is formed on or attached to the partner
plate 8 and is tapped into a tubular spindle 11, which is held in position vertically
by a gland 12 screwed into the cover 13 of the valve chamber 1, 2, and passes
through a stuffing box so as to be actuated by an external hand wheel 14. Pro-
jections 15, 16, are formed on the partner plate 8, or on the valve plate 6, or on
both, to cause the one to move with the other but with a certain amount of play
to allow of the closing action, and which play causes the jamming action to be
relieved when commencing to open the valve in consequence of the partner plate 8
moving a little before shifting the valve plate 6 transversely.
Figures 3 and 4 are vertical sections, as at right angles to each other, of a second
modification, Figure 5 being also a vertical section showing parts opposite those
shown in Figure 3.
In this modification instead of the ball (7) there is an eccentric spherical shell 17
shown separately in Figures 6 and 7, one side of which fits into the spherical
cavity on the back of the valve plate 6 whilst the other side bears on a spheroidal
projection 18 on the back of the partner plate 8. Or the spherical shell 17 might
have its inner surface bearing on a spherical piece interposed between it and the
partner plate 8, and having the spindle applied to it, the partner plate 8 being in
that case a close fitting valve plate having a spherical cavity formed on its back to
fit and turn on the interposed spherical piece. The thinner part of the spherical
shell 17 is uppermost and the screw spindle 10, which is in this modification tapped
through a lug formed on the back of the partner plate 8, when being screwed
through the lug for the purpose of opening the valve, encounters the top of the
spherical shell and insures its moving down relatively to the other parts so as to
relieve the jamining action.
In this modification a circular opening, provided with a screwing cover 19, is
formed in one of the flat sides of the valve chamber 1, 2, for the introduction of
the valve details. Guides or guide surfaces 20 are fitted or formed in the valve
chamber for the valve plate 6 to slide upon when being opened or closed, and in
order that the valve plate 6 may be turned a little at each action a projecting
frictional surface 21 is formed for the edge of the valve plate to touch just before
it reaches its closed position, whilst a stop 22 for limiting its movement when being
closed is formed a little to one side and so as with the friction surface 21 to prevent
the valve plate from being displaced laterally.
Figure 8 is a vertical longitudinal section of a third modification; and Figure 9
is a back or inside elevation of the partner plate 8, whilst Figure 10 is a view of

page_text: the interposed piece 7, which instead of being a ball is in the form of two eccentri-
cally united spherical segments.
In this modification the screw spindle 10 may be made to turn without end
movement in the lug on the partner plate 8 and tapped through an internally
screwed gland 12 in the top of the valve chamber 1, 2, or the screwed spindle may
actuate the plate 8, as in Figure 4 herein-before described.
Figure 11 is a vertical longitudinal section, and Figures 12 and 13 are end and
side elevations of a fourth modification, which differs from that shown in Figures 1
and 2, herein-before described, merely in having the arrangements of screw spindle 10
and cover 19, as shown in Figure 4, herein-before described.
Figures 14 and 15 are vertical sections as at right angles to each other of a
fifth modification which is suitable for larger sizes than the others, and is provided
with two screw spindles 10, 10, which are tapped through the screwed nuts 25,
fitting loosely but secured on the back of the partner plate 8, and have spur
wheels 23 fixed on them externally, and geared to a pinion on a central spindle 24,
to which a crank handle or hand wheel can be applied. Figure 14 shows the valvo
open, and Figure 15 represents it in the closed position. The bearing surfaces on
the backs of the valve plate G and partner plate 8 for the ball 7 are in this modi-
fication reduced to a minimum.
My improved valves are susceptible of other minor modifications besides those
shown on the accompanying Drawings, and herein-before described. Thus the
partner plate (8) may be moved by a plain spindle passing out through a stuffing
box and acted on externally by a lever or other mechanism, or there may be two
or more outlet branches formed on the sides of the valve chamber, thus acting as a
many way valve.
Also any modification of detail, shown only in one or two Figures, may if
preferred be combined with details as shown in other Figures.
Having thus particularly described my said Invention and the manner of per-
forming the same, I have to state that I do not restrict myself to the precise details
herein described or delineated, but that what I believe to be novel and original and
claim as the Invention secured to me by the herein-before in part recited Letters
Patent is,-
First. The combination of a valve plate (6) and partner plate (8) with an inter-
posed ball, or two united spherical segments (7) or a spherical shell (17) or equivalent
piece allowing the valve plate (6) to turn about its centre, the parts working
together substantially as herein-before described.
Second. The forming of the valve chamber with a projecting frictional surface (21)
for turning the valve plate (6) and combining with a lateral stop surface (22) to
stop the valve plate, as hercin-before described.
In witness whereof, I, the said William Page, have hereunto set my hand
and seal, this Twenty-eight day of June, in the year of our Lord One
thousand eight hundred and seventy-seven.
TTTTTING