Improvements in and relating to Pump Buckets.
Year: 1889

page_text: Date of Application, 19th Jan., 1889
Complete Specification Left, 21st Oct., 1889-Accepted, 23rd Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in and relating to Pump Buckets.
I, NICHOLAS SWANSON HAWKS of Eden Holmo, Atherton Road, Forest Gate,
Essex, Engineer, do hereby declare the nature of this invention to be as follows:-
With pump buckets of the ordinary construction if any of the valves get out of
order it is frequently necessary to take out the bucket in order to remedy the defect.
Further, when the buckets have metallic packing rings or Manilla-rope or other
packing around them it is found difficult to make a tight joint without undue
pressure.
The object of my invention is to remedy these defects. Instead of forming the
valve seats in the bucket casting or body as heretofore I form them in an independent
or separate plate which I secure to the bucket casting by screws or like means so that
it can be readily removed together with the valves when required. Around the
bucket I place one or more split metallic packing rings, and in the periphery of the
bucket I form several holes which communicate with holes in the valve seat plate.
Consequently when the bucket is being lifted or is making its active stroke, some of
the water or fluid passes through the holes in the valve seat plate and through the
holes in the periphery of the bucket and forces out the packing rings into close
contact with the pump barrel. The water or fluid that is being pumped thus serves
by its pressure as a spring to the packing.
Dated this 19th day of January 1889
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.
COMPLETE SPECIFICATION.
Improvements in and relating to Pump Buckets.
I, NICHOLAS SWANSON HAWKS of Eden Holme, Atherton Road, Forest Gate in
the County of Essex, 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 :-
With pump buckets of the ordinary construction if any of the valves get out of
order it is frequently necessary to take out the bucket in order to remedy the defect.
Further when the buckets have metallic packing rings or Manilla-rope or other
packing around them it is found difficult to make a tight joint without undue
pressure.
The object of my invention is to overcome these objections. Instead of forming
the valve seats in the bucket casting or body as heretofore I form them independently,
or separately, and I secure them to the bucket casting by screws or like means so that
they can be readily removed together with the valves when required. Around the
bucket place one or more split metallic packing rings and in the periphery of the
bucket I form several holes which communicate with holes in the valve seat plate.
Consequently when the bucket is being lifted or is making its active stroke some of
the water or fluid passes through the holes in the valve seat plate, and through the
holes in the periphery of the bucket, and forces out the packing rings into close
contact with the pump barrel. The water or fluid that is being pumped thus serves
by its pressure as a spring to the packing.
The accompanying drawings represent a pump bucket constructed according to my
invention. Figure 1 represents, at the upper half, a plan view of the bucket, and, at
the lower half, a view of the underside. Figure 2 is a section on the line 1-1 of

page_text: Figure 1, Figure 3 is a half side elevation and a half section on the line 2-2 of
Figure 1.
The bucket casting or body consists of the centre or boss a, the valve seat plate b
having openings c c to receive the separate or independent valve seats, the ribs or
bars d, tho periphery e, the bottom flange f, and guides h h in the ribs d for the lower
ends of the spindles or rods that carry the valve seats and valves. ii are the valve
seats which fit into the openings cc; these seats as well as the valves k k are carried
by the spindles or stems the lower ends of which pass through the guides h h and
have screw nuts m m screwed up thereon so as to hold the seats tightly down in the
openings c c in the seat plate b. nn are screw nuts at the upper ends of the spindles
or stems and which, by being more or less screwed on the spindles, regulate the
play of the valves as desired. It will be readily seen that if any of the valves get out
of order it is only necessary-to-unscrew the nuts m of the corresponding valve seats i
to enable these seats together with their valves k to be removed.
T
p is a split metallic packing ring (or there may be more than one such ring) placed
around the bucket and held between the bottom flange fand a top ring or removable
flange o̟ which, after the split ring is in place, is secured to the bucket casting by
screws passed through lugs & on the ring 7. In the periphery e of the bucket are
holes t which communicate with holes in the valve seat plate 6. When the bucket
is making its active stroke some of the liquid passes through the holes and t and
forces out the pucking ring p into close contact with the pump barrel; the liquid
that is being pumped thus serves by its pressure us a spring to the packing.
26
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 in respect of punip buckets is :-
1. Valve seats formed independently of or separately from the bucket casting and
secured thereto in such manner that they can be readily removed together with their
valves without taking out the bucket, substantially.
.as set forth.
2. In combination with a packing ring or rings, communications between the
periphery of the bucket and the valve seat plate or top of the bucket, so that as the
bucket is making its active stroke some of the fluid that is being pumped passes
through the said communications and forces out the packing ring or rings, thereby
serving as a spring to the packing, substantially as set forth.
3. The improved pump bucket constructed substantially as hereinbefore described
and represented in the accompanying drawings.
Dated this 21st day of October 1889
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.