Pump. Page: 4 of 5
[2], 5 p. : ill. ; 23 cm.View a full description of this patent.
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600,545
screw-threaded externally for the reception
of a cap 22, composed of a hub a, arms b, and
a screw-threaded ring c at the upper ends of
said arms, which ring lies tightly against the
5 external annular flange 21 on the sleeve or
coupling, the outer face of said flange being
flush with the peripheral walls of the pipe 15
and ring c of cap 22. The lower end of the
sleeve or coupling 20 forms an annular shoul-
io der 23, which constitutes an upper seat for a
valve 24, said valve being adapted to nor-
mally rest on a lower seat 24 in the cap 22.
The valve 24 is provided with a stem 25,
which passes through a suitable hole in the
15 hub a of the cap. The valve-chamber 26
has outlets 27 between the arms b to permit
water to flow from the pipe 15 into the annu-
lar chamber or duct 17, as will be hereinafter
more fully explained
20 The plunger 16 is constructed with a body
portion 27a, having openings 28 in its upper
end and screw - threaded externally at its
lower end for the reception of an open cap or
shell 29. The body portion of the plunger
25 is made with an annular shoulder 30, and be-
tween this shoulder and the upper end of the
cap or shell 29 packing-rings 31 and a spac-
ing-ring 32 therefor are located. A valve-
chamber 33 is formed within the cap or shell
30 29, which communicates with the hollow in-
terior of the plunger, and within this cham-
ber a valve 34 is located, one seat for said
valve being formed by the inner bottom face
of the cap or shell 29 and the other seat be-
35 ing formed by the end 35 of the body portion
of the plunger, said valve being also provided
with a rod 36, which passes through a hole in
the bottom of the cap or shell 29. The valve-
chamber 33 is provided with outlet-ports 37
40 under the control of the valve 34.
The double-walled shell or pipe A is made at
diametrically opposite points with inlets 39,
and through these inlets the water from the
well flows into the annular chamber 9, through
45 which it circulates, and passes through the an-
nular series of elongated slots 11 into the pipe
10. Should the plunger be raised from the
lower end of its stroke, the valve 24 will rise
and close the outlet-ports 27 and the valve 34
5o in the plunger will be made to remain on its
lower seat, and thus leave the outlet-ports 37-
open. Thus during the upstroke of the plun-
ger the water will flow into the same and out
through the ports 37 into the pipe 15 below
55 the plunger. Now when the plunger is moved
downwardly the lower valve 24 will be forced
down, so as to open the ports 27 and permit
the water to flow into the annular duct 17.
At the same time the valve 34 within the plun-
6o ger will be made to rise and close the ports 37,
and thus prevent any water from passing
through the plunger during the downstroke
of the same. The water in the pipe 15 be-
low the plunger will therefore be forced into
65 the annular chamber 17, between the pipes
15 and 4, and then up through the ducts 8,into the well-pipe 3, through which it will pass
to the surface.
My improvements are very simple in con-
struction, are comparatively cheap to manu- 70
facture, can be readily and quickly inserted
into the well, and are effectual in all respects
in the performance of their functions.
Various slight changes might be made in
the details of construction of my invention 75
without departing from the spirit thereof or
limiting its scope, and hence I do not wish to
limit myself to the precise details herein set
forth.
Having fully described my invention, what 8o
I claim as new, and desire to secure by Letters
Patent, is-
1. In a pump, the combination with a shell
having a tapering interior wall and a cham-
ber within said interior wall, of a tapering 85
pipe seated within and supported by said
tapering interior wall of the shell and com-
municating with said chamber, packing-rings
in said tapering pipe above and below said
chamber, a pipe communicating with the ta- 9o
pering pipe, a plunger within said last-men-
tioned pipe and inlet and outlet passages,sub-
stantially as set forth.
2. In a pump,the combination with a double-
walled shell having intervening ducts and 95
having inlets communicating with the inte-
rior of said shell, of a pipe seated within said
shell and having inlets, a pipe communicat-
ing at its upper end with the pipe within the
shell, a valve within the lower end of said last- 100
mentioned pipe, a valved plunger within said
last-mentioned pipe and a pipe communicat-
ing with the ducts in the shell and surround-
ing said last-mentioned pipe, substantially as
set forth. 105
3. In a pump, the combination with a double-
walled shell having intervening ducts, an an-
nular chamber within the inner wall of the
shell and inlets in said shell communicating
with said annular chamber, of a pipe seated i11
within said shell and having slots communi-
cating with said annular chamber, a pipe com-
municating with said intervening ducts in the
shell and closed at its lower end, a pipe com-
municating with said slotted pipe and having 115
a valve at its lower end, said last-mentioned
pipe terminating within the pipe which com-
municates with said intervening ducts in the
shell, substantially as set forth.
4. In a pump,the combination with a double- 120
walled shell having intervening ducts and a
chamber in its inner wall, of a pipe seated
within said shell and having openings com-
municating with said chamber, a pipe com-
municating with the intervening ducts in the 125
shell and having a closed lower end, an inner
pipe communicating with the pipe in the shell
and so disposed as to leave a duct between it
and said first-mentioned pipe, a valve-cham-
ber at the lower end of said inner pipe adapted 130
to communicate with the duct surrounding
. said inner pipe, a valve in said valve-cham-0
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Mauldin, Alfred W. Pump., patent, March 15, 1898; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth514777/m1/4/: accessed June 30, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.