Double-Acting Pump Page: 4 of 4
[2], 2 p. : ill. ; 23 cm.View a full description of this patent.
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969,12'1
head 32. In the top of this piston are out-
let openings 33 into the tubing from the in-
terior of the head, the latter being in coin-
munication with the bore of the rod 30 by
5 openings 34 made in the latter. The open-
ings 33 are controlled by a valve 35 seating
on top of the head, and comprising a disk
faced, with a suitable leather or other pack-
ing, and slidably mounted on a stem 36
to which screws into and closes the upper end
of the rod 30. The pump operating means
will be connected to this stein. The upward
or opening movement of the valve 35 is lim-
ited by a collar 37 on the stem. The spout
15 28 is located above this valve. Between the
piston 29 and the head 32, the rod30 carries
a valve 38 which is shaped to fit 'the seat 14,
said valve being slidable on the rod, its
downward travel being limited by a collar
20 38a on the rod. The valve is so positioned
on the rod that it seats on the beginning of
the down stroke of the piston.
The operation of the pump is as follows:
On the down stroke of the piston 29, the
25 valve 24 closes, and the valve 21 opens,
whereupon the water or other fluid in the
barrel, above the valve 24, is forced up
through the hollow rod 30, and out of the
same through the openings 34 into the head
30 32, and from the latter into the tubing 27 by
the way of the openings 33, and then to the
spout 28, the valve 35 also opening on the
down stroke and seating at the end thereof.
Thec downward travel of the piston 29 cre-
35 ates a suction in the barrel 10 between the
top of said piston and the valve 38, whereby
water is drawn into that portion of the bar-
rel through the .openings 15, the valve 21
opening to let the water through the open-
40 ings 19 into that portion of the barrel be-
tween the partitions 17 and 18, from which
it passes through the openings 23 into the
chamber 12, and out of the latter into that
portion of the barrel 10 which is above the
45 piston 29, by the way of the openings 15.
The valve 38 seats at the beginning of the
down stroke. On the up stroke of the piston,
the valves 24 and 38 open, and the valves
21 and 35 close. The water from the well
50 now flows by the way of the tube 20 into that
portion of the barrel 10 above the partition
18, and the water which had entered the
barrel 10 above the piston 29 on the down
stroke, is lifted by the piston 29, and flows
55 through the tubing 27 to the spout 28.
It will be evident from the foregoing, that
the pump delivers the water or other fluid
in a continuous stream, a supply being ob-
tained on both strokes of the piston. The
60 pump is easy to operate, and has no compli-
cated parts to get out of order.
The preferred embodiment of the inven-tion has.been herein shown and described,
but it will be evident that various minor
changes in the structural details thereof may 65
be resorted to without a departure from the
invention.
What is claimed is:
1. In a puimip, a cylinder comprising inner
and outer barrels, the outer barrel being 70
closed at its ends, and in communication at
its upper end with the inner barrel, spaced
partitions in the lower end of the inner bar-
rel, that portion of said barrel which is lo-
cated between the partitions having an out- 75
let into the outer barrel, and the lower par-
tition having openings into the well, a tube
extending between the partitions, and open-
ing therethrough, a valve seating on the
upper end of the tube, a valve slidably 80
mounted on the tube, and controlling the
openings of the lower partition, a delivery
tube connected to the pump cylinder, a solid
piston working in the inner barrel above the
partitions, a hollow rod carrying the piston, 85
a valve carried by the rod to close the upper
end of the inner barrel at the down stroke of
the piston, and a hollow head carried by the
rod above the last mentioned valve, the in-
terior of said head being in communication 90
with the bore of the rod, and having a valve-
controlled outlet into the delivery tube.
2. In a pumnp, a cylinder comprising inner
and outer barrels, the outer barrel being
closed at its lower end, a ring seated in the 95
upper end of the outer barrel for closing
said enl, the ring having a valve seat, and
said outer barrel l)ein g il couininication at
its upper en(i with the inner barrel, parti-
tions in the lower end of the inner barrel, 100
that portion of said barrel which is located
between the partitions having an outlet into
the outer barrel, and the partitions having
valve-controlled openings into the well, a
delivery tube connected to the pump cylin- 105
der, a solid piston working in the inner bar-
rel above the partitions, a hollow rod carry-
ing the piston, a hollow head carried by the
rod, the interior of said head being in com-
munication with the bore of the rod, and 110
having a valve-controlled outlet into the de-
livery tube, and a valve carried by the rod
below the aforesaid head,. said last-men-
tioned valve engaging the aforesaid seat to
close the upper end of the inner barrel at 115
the down stroke of the piston.
In testimony that I claim the foregoing as
my own, I have hereto affixed my signature
in the presence of two witnesses.
HENRY BROWN ARNOLD.
Witnesses:
JAMES T. BROOKS,
PEARL HARRINGTON.
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Reference the current page of this Patent.
Arnold, Henry Brown. Double-Acting Pump, patent, August 30, 1910; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth513788/m1/4/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.