Improvements in Sluice Valves.
Year: 1896

page_text: Date of Application, 7th Jan., 1896
Complete Specification Left, 6th Oct., 1896-Accepted, 21st Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in Sluice Valves.
I, JOHN BARR, of The Glenfield Company, Kilmarnock, Limited, of
Kilmarnock, in the County of Ayr, North Britain, Engineer, do hereby declare
the nature of this invention to be as follows, that is to say :-
My said invention has for its object to improve the construction of sluice valves,
especially such as are required for large pipes and to withstand considerable
pressure, my improvements enabling such valves to be worked with comparative
ease.
In carrying out my invention I employ a valve piece of a wedge form having
frame-shaped bearing faces, of gunmetal or other suitable material, on both sides,
to bear on similar faces in the valve box; and the valve piece is moved by means
of a screw spindle extending out through a stuffing box, and having fixed on it
externally a spur wheel with which there gears a pinion. The valve spindle and
the pinion spindle are both shaped to receive a lever key, which is applied to the
pinion spindle at the final closing or first opening of the valve, and to the valve
spindle itself when the valve bas been eased off the faces.
The valve piece is made with horns projecting from its sides and working in
recesses in the valve box. The top and bottom of each horn is rounded the sides
being vertical or at right angles to the axis of the pipe. Each horn has round it
an endless series of antifriction rollers or balls which, at the sides, bear on the
sides of the recess; and as the valve moves the rollers or balls roll, and at the
top and bottom of each horn pass round to the other side of the horn to take
each other's places in endless succession; and when at the side towards which
the valve may be pressed, they sustain the pressure, whilst allowing comparatively
easy movement. The rollers or balls may be made of, or covered with gun-
metal, as may also be the guiding or bearing surfaces in the valve box and the
bearing surfaces of the valve horns; or any other suitable material may be
employed for those parts.
Dated this Sixth day of January 1896.
EDMUND HUNT,
Applicant's Agent.
Improvements in Sluice Valves.
I, JOHN BARR, of The Glenfield Company, Kilmarnock, Limited, of
Kilmarnock, in the County of Ayr, North Britain, 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, that
is to say:
My said invention has for its object to improve the construction of sluice
valves, especially such as are required for large pipes and to withstand considerable
pressure, my improvements enabling such valves to be worked with comparative
case.

page_text: The invention comprises an improved arrangement of the various parts of a
eluice valve, the most important feature of which is an endless series of antifriction
rollers or balls applied to each side of the valve which by sustaining the pressure
on the valve admit of it being easily moved.
And in order that my said invention and the manner of performing the same
may be properly understood I hereunto append three sheets of explanatory
drawings, to be hereinafter referred to, and showing two modifications of my
improved sluice valve.
Figures, 1, and 2, on Sheet, 1, of the drawings are vertical sections, as taken at
right angles to each other of an ordinary sluice valve as made according to my
invention.
Figures, 3, and 4, on Sheet, 2, are enlarged sectional elevations as at right
angles to each other of details of the valve shown in Figures, 1, and 2, Figure, 5,
being an enlarged horizontal section of the same.
Figures, 6, 7, and 8, on Sheet, 3, are respectively a horizontal section, a sectional
front elevation and a transverse vertical section of a wall sluice valve as made
according to my invention.
In these drawings the same reference letters are used to mark the same or like
parts wherever they are repeated.
In carrying out my invention in the case of an ordinary sluice valve such as is
shown in Figures, 1, 2, 3, 4, and 5, I employ a valve piece, A, of a wedge. form
having frame-shaped bearing faces, B, of gunmetal or other suitable material
on both sides to bear ou similar faces, C, in the valve box, D; aud the valve
piece, A, is moved by means of a screw spindle, E, extending out through a
stuffing box, G, and having fixed on it externally a spur wheel, H, with which
there gears a pinion, J, on a spindle, K, carried in a bearing bracket on the valve
box, D. The valve spindle, E, and the pinion spindle, K, are both shaped to
receive a lever key, which is applied to the pinion spindle at the final closing or
first opening of the valve, and to the valve spindle itself when the valve has been
eased off the faces, C, in the valve box, D.
The valve piece, A, is made with horns, L, projecting from its sides and
working in recesses in the valve box, D. The top and bottom of each horn, L,
are rounded the sides being vertical or at right angles to the axis of the pipe.
Each horn, L, has round it an endless series of antifriction rollers or balls, M,
which at the sides, bear on the sides of the recess; and as the valve_moves
the rollers or balls, M, roll and at the top and bottom of each horn, L, pass
round to the other side of the horn to take each other's places in endless
succession; and at the side towards which the valve may be pressed, they sustain
the pressure whilst allowing comparatively easy movement.
The rollers or
balls, M, are made with axial projections and they fit and work in a groove in an
annular guard or casing, Q, encircling the horn, L, and fixed to the valve piece, A.
The guard or casing, Q, is put together in halves to facilitate the introduction
and withdrawal of the rollers or balls, M. The rollers, M, are made of gunmetal
(or they might be covered with it) and the guiding or bearing surfaces in the
valve box, D, and the bearing surfaces of the horns, L, are also fitted with bearing
strips, N, and P, respectively of the same metal; or any other suitable material
may be employed for those parts.
In the wall sluice valve shown in Figures, 6, 7, and 8, the valve piece, A, is
fitted with two series of antifriction rollers, M, one above the other at each side
instead of one as in the modification first described.
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 :-
1. The construction, arrangement, and combination of parts constituting the
improved sluice valve substantially as herein before described and as shown in
Figures, 1, 2, 3, 4, and 5, of the accompanying drawings.

page_text: 2. In sluice valves, applying to each side of the valve piece one or more
circulating series of antifriction rollers or balls confined by guards or guiding
casings and rolling at parts of their courses between the valve piece and fixed
bearing strips when the valve piece is moved substantially as and for the purposes
hereinbefore described.
Deted this Fifth day of October 1896
EDMUND HUNT,
Applicant's Agent.