IMPROVEMENTS IN PUMPS ESPECIALLY ADAPTED FOR ARTESIAN BORED TUBE WELLS
Year: 1885

page_text: I, CAMILLO ISLER of 88 Southwark Street, S.E., in the, County of Surrey,
Engineer do hereby declare the nature of my invention for IMPROVEMENTS IN
PUMPS ESPECIALLY ADAPTED FOR ARTESIAN BORED TUBE WELLS to be as follows :-
My invention for improvements in pumps especially adapted for Artesian bored
tube wells has for its object to produce an uniform flow of water or other liquid
from a pump provided with a single barrel or cylinder and thus to reduce the
strains on the pump rods.
In a pump constructed according to this invention, the barrel or cylinder is
provided with two pistons or buckets actuated in such a manner that they are
always travelling in opposite directions that is to say both approaching one another
or both receding from one another. The upper piston or bucket may be arranged
to work in a larger portion of the barrel than the lower piston or bucket to
compensate for the increased diameter of its rod.
In carrying this invention into practical effect, the rod of the upper piston or
bucket is tubular and surrounds the rod of the lower piston or bucket which latter
or central rod projects in all its working positions from both ends of the hollow or
outer rod. The upper ends of both rods are provided with crossheads connected by
links to two cranks or eccentrics arranged on the same shaft opposite to one
another; or the crosshead of the central rod may be connected by a link to a crank
or eccentric on a shaft and the crosshead of the hollow or outer rod be connected
by two links to two cranks or eccentrics arranged on the same shaft as the other
crank or eccentric but opposite thereto and one on either side thereof.
It will thus be seen that when the two pistons or buckets are approaching one
another, the lower piston or bucket is drawing the liquid through the ordinary
suction valve and is forcing the liquid above it upwards; the upper piston or
bucket descending through the liquid ready for its up or forcing stroke. On the
return strokes of the pistons or buckets, the upper piston or bucket in, ascending
forces the liquid above it upwards and draws in a further supply of liquid through
the ordinary suction valve and through the lower piston or bucket which latter is
descending ready for its next up stroke.

page_text: Improvements in Pumps, Especially Adapted for Artesian Bored
Tube Wells.
I, CAMILLO ISLER of 88 Southwark Street, S.E., in the County of Surrey,
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:-
My invention for improvements in pumps especially adapted for Artesian bored
tube wells has for its object to produce an uniform flow of water or other liquid
from a pump provided with a single barrel or cylinder and thus to reduce the
strains on the pump rods.
In a pump constructed according to this invention, the barrel or cylinder is
provided with two pistons or buckets actuated in such a manner that they are
always travelling in opposite directions that is to say both approaching one another
or both receding from one another. The upper piston or bucket may be arranged
to work in a larger portion of the barrel or cylinder than the lower piston or
bucket to compensate for the increased diameter of its rod.
In carrying this invention into practical effect, the rod of the upper bucket is
tubular and surrounds the rod of the lower bucket which latter or central rod
projects in all its working positions from both ends of the hollow or outer rod.
The upper ends of both rods are provided with crossheads connected by links to
two cranks or eccentrics arranged on the same shaft opposite to one another; or
the crosshead of the central rod may be connected by a link to a crank or eccentric
on a shaft and the crosshead of the hollow or outer rod be connected by two links
to two cranks or eccentrics arranged on the same shaft as the before mentioned
crank but opposite thereto and one on either side thereof.
It will thus be seen that when the two buckets are approaching one another, the
lower bucket is drawing the liquid through the ordinary suction valve and is
forcing the liquid above it upwards; the upper bucket descending through 'the
ascending liquid ready for its next or working stroke. On the return strokes of
the buckets, the upper bucket in ascending forces the liquid above it upwards and
draws in a further supply of liquid through the ordinary suction valve and
through the lower bucket which descends through the ascending liquid.
The accompanying drawing represents in sectional elevation an arrangement of
pump constructed according to this invention.
The pump barrel or cylinder a is provided with two buckets bc. The upper
bucket is connected to a tubular rod d surrounding the rod e of the lower
bucket c. The rod e passes through a stuffing box in the bucket b.
The tubular rod d is connected at its upper end to a crosshead of having two
rods g suitably connected to two cranks on a shaft. The rod e is also suitably
connected to a crank on the abovementioned shaft arranged centrally between the
beforementioned cranks but opposite thereto, that is to say making an angle of
180 deg. therewith.

page_text: In the drawing, o, o represent cup leathers, p the outer tube of an Artesian
well, y the top of the well, 8 stuffing boxes, and t india rubber discs.
The operation of the pump is as follows :-
Supposing the parts to be in the positions shewn, on rotating the crank shaft,
the upper bucket b ascends, forcing the water above it up the tube h to the outlet i
and drawing in a fresh supply through the tube and suction valve m, the
ascending water being drawn through the descending bucket c. As soon as the
bucket c begins to ascend, it also forces the water above it up through the descending
bucket 6 and through the pipe h to the outlet i and draws in a further supply
through the tube and suction valve m.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is:-
In pumps for Artesian or other deep wells
1. Constructing a double acting pump with two buckets arranged one above the
other in a single cylinder and operated so as to be always moving in opposite
directions substantially as described.
2. Constructing a double acting pump with two buckets arranged one above the
other in a single cylinder and operated so that one bucket is always ascending-
forcing the liquid above it upwards and drawing in a further supply of liquid-
whilst the other bucket is descending through the ascending liquid substantially as
described.
3. The construction of double acting pumps substantially as described with
reference to the drawing.