Improved Valve for Liquid Pumps.
Year: 1896

page_text: Date of Application, 30th Mar., 1896
Complete Specification Left, 1st Feb., 1897-Accepted, 13th Mar., 1897
Improved Valve for Liquid Pumps.
I, JAMES SYKES PORTER of The Brewery, Burton-on-Trent, in the County
of Stafford, Brewer, do hereby declare the nature of this invention to be as
follows:-
It is found from experience that the valves employed in the pumping of sandy
or dirty water, or of brewing worts and other deleterious liquids, do not last very
long, owing to the grit or other solid matter passing between the valve and its
seating, and thus in a comparatively short time wearing away the two faces by the
constant friction against one another of the same with grit or other solid matter in
between.
Now my present invention consists of an improvement upon the dead weight or
like metal valves, by the use of which such valves will last very much longer,
and in most cases will work for years without requiring attention.
In carrying out my invention, I embed a disc-like ring of lignum vitæ or other
very hard wood or substance in an annular recess formed in the valve seating to
receive the same, or I may secure it upon the seating in any other suitable manner.
Said disc-like ring may be turned truly upon a lathe to accurately fit into said
annular recess, being held there tightly, and it is made of sufficient thickness to
project a little, say ", above the face of the valve proper.
The seating will thus be relieved from all wear arising from the presence of any
sand or wearing substance, which will, instead, fall upon the inserted ring aforesaid.
I find, in practice, that, whereas two metal faces will quickly wear away, a ring of
lignum vitæ is very durable, and shows hardly any wear, even after a long lapse
of time.
I find it sufficient for ordinary purposes to insert the ring in the face of the seating
only, but may, if preferred, insert a similar ring in the face of the valve in addition
to, or in place of the other.
My improved valve will be found especially useful in pumps for collieries,
mines, breweries, the bilges of ships, or in other places, as will be well
understood.
Dated this 30th day of March 1896.
STANLEY, POPPLEWELL & Co.,
7 & 8 Southampton Buildings, London, W.C.,
Chartered Patent Agents.
I, JAMES SYKES PORTER of The Brewery, Burton-on-Trent in the County
of Stafford, Brewer 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 :-
It is found from experience that the valves employed in the pumping of liquids

page_text: holding particles in suspension such as sand, mud, chalk and the like or brewing
worts and similar liquid products do not continue effective for any length of time
in consequence of the gritty or other particles passing between the valve and its
seating setting up a grinding or wearing action and so by the constant friction, in
a comparatively short time, destroying the faces of said valve and seating, so
rendering them less effective.
Now my present invention is intended to so improve the construction of dead
weight or like metal valves, such as are usually used for pumping such liquids, so
that they shall continue effective for a much longer period, in most cases for some
years without particular attention.
In order to more fully explain the nature of my said invention I shall in the
following description refer to a sheet of drawings attached to this specification and
to the figures and letters of reference thereon. Figure 1 being a transverse
section of a dead weight valve (on line X-X of Figure 2) and Figure 2 a plan
view on line Y-Y of Figure 1.
In carrying out my invention I form an annular recess or channel A in the
valve B, and embed therein a disc-like ring or block C of lignum vitæ or other
equally hard wood or similar material or substance, or I may secure such ring or
block C upon the seating in any effective manner. The ring C may be turned in
a lathe to accurately fit the annular recess or channel A and so be held tightly,
and it is made of sufficient thickness to project somewhat, say of an inch, above
the face of the seating B and thus take the whole of the weight of the valve
proper D. The seating will thus be relieved from friction and wear arising from
the presence of sand, grit or the like, which will instead fall upon the inserted
ring C, and I find in practice that, whereas two metal faces will quickly wear when
exposed to the action of such sandy or gritty liquids a ring of lignum vitæ is more
durable and shews little wear even after lengthened use.
I find it sufficient for ordinary purposes to insert the ring of lignum vitæ in the
face of the seating only as shewn by drawings, but under some circumstances
I may find it desirable to insert a similar ring in the face E of the valve itself in
addition to or in place of that shewn by letter C.
My improved valve will be found especially useful in bilge pumps; colliery
and mining pumps, breweries, sewage pumps &c.
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. Forming in the face of valve seatings or of valves used in pumping liquids
charged with particles of a solid nature an annular channel (or channels) such
as A and embedding therein a continuous ring or block of lignum vitæ as and
for the purpose hereinbefore described with reference to the accompanying
drawing.
2. The improved valve arranged and constructed substantially as hereinbefore
described and as illustrated by the accompanying drawings.
Dated this 21st day of January 1897.
STANLEY, POPPLEWELL & Co.,
Chartered Patent Agents,
7 & 8, Southampton Buildings, Chancery Lane, London,
Agents for the Applicant.