Improvements in Valves and Cocks used for Regulating the Flow of Water or other Fluids.
Year: 1893

page_text: Date of Application, 4th Apr., 1893
Complete Specification Left, 23rd May, 1893-Accepted, 11th Nov., 1893
PROVISIONAL SPECIFICATION.
Improvements in Valves and Cocks used for Regulating the Flow of
Water or other Fluids.
THOMAS BUTTERWORTH WRIGHT of 74 Brookroyd Lane, Birstall, Overlooker,
HENRY WRIGHT of 9 Highfield Mount, Beeston Hill Leeds, Overlooker, and
JOHN WRIGHT of Bradford Road, Carlinghow, Batley, Overlooker, all in the
County of York, do hereby declare the nature of this invention to be as follows:-
We make the washer plug "B" of an improved shape, so as to avoid the
abrasion and consequent wear as in ordinary taps and use also an improved
washer "C" of protected rubber or other suitable material. The plug "B" is
shaped so as to work with a pivot-like projection within a hollow formed in the
valve or handle portion of the tap. The plug has also an improved washer "C"
which is prevented from unduly expanding when pressure is applied, by a ring D
of metal or other suitable material.
Dated this First day of April 1893.
THOMAS BUTTERWORTH WRIGHT.
HENRY WRIGHT.
JOHN WRIGHT.
In order that our invention may be fully understood we have appended to
Provisional Specification a sheet of drawings and hereinafter refer to said sheet of
drawings.
Fig. 1 shows a section of a tap with our invention the valve washer & plug
Fig. 2 in working position. Part A in Fig. 1 is the spindle of tap with handle at
top. The lower portion of this spindle is hollowed out so as to admit the shaft of
our improved valve or plug.
Fig. 2 shows our improved valve or plug. Part B Fig. 2 is the elongated shaft
with its upper extremity made with a pivot on which the spindle of tap (part A
Fig. 1) takes effect with a downward pressure when turned by the handle of tap
for the purpose of regulating or stopping the flow of water or other fluid. Part
Fig. 2 is a flexible washer of rubber, corkwood, or other suitable material which is
brought into contact with the bed or seat of tap (part E, Fig. 1.) when pressure

page_text: is given by the spindle "A" being screwed down, and thus regulates or shuts off
the flow of water or other fluid. Part D Fig. 2 is a ring of metal or other suitable
material placed round a portion of the flexible washer (part C) to prevent its
undue expansion.
By having the shaft of valve or plug (part B Fig. 2. made longer than the
hollowed out part of spindle of tap, and having the said shaft made with a pivot
end, it follows that the point of contact between the spindle of tap and our improved
valve or plug is reduced considerably in size as compared with those hitherto in
use and therefore the tendency of the plug or valve to rotate by being brought into
contact with the spindle is reduced to a minimum. Thus on handle being turned
and the spindle screwed downwards the action on the shaft (part B) or pivot of
plug or valve, is more of a vertical thrust without the tendency to cause the whole
of the valve or plug to revolve and the danger of abrasion and consequent wearing
out of and damage to the flexible washer (part C, Fig. 2) when brought into
contact with the bed or seat part of the tap (part E).
In order to reduce the friction between the shaft of plug or valve and spindle we
might introduce a ball, or balls, of metal or other material within the hollow of
spindle, and working on the top or sides or both, of the shaft of valve or plug, but
by preference we use the pivot herein before mentioned and described.
Part D, Fig. 2. is a ring of metal or other suitable material placed round a
portion of the periphery of the flexible washer (part C). This ring is for the
purpose of preventing any undue expansion of the flexible washer when the
pressure is brought to bear by the screwing of the spindle downwards. This ring
is not made of the full thickness of the flexible washer because we require a
portion of the flexible washer (part C) to come into actual contact with the bed or
seat of the tap, part "E" and thus by a very small pressure caused by turning the
handle of the tap, to at once lessen or stop the flow of water or other fluid. It
will be seen therefore that when the pressure is removed by turning the handle or
spindle of tap in the opposite direction, the plug or valve as a whole is raised by
the pressure of the fluid within the tap and entering by the inlet "F," Fig. 1, and
the flexible washer having the ring round it ("D" Fig. 2) will the more readily
resume its normal shape and thickness, and thus lets the water or other fluid flow
freely.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
1. An improved tap valve or plug having a pivot-like end on which the spindle
of tap rotates, substantially as illustrated and described.
2. A ring of metal or other suitable material placed round the periphery of
flexible washer, substantially as illustrated and described.
Dated this 92nd day of Mar 1802
THOMAS BUTTERWORTH WRIGHT.
HENRY WRIGHT.
JOHN WRIGHT.
E. H. Vero,
29, Wellington Road, Dewsbury, Agent to the above.