Pumping Apparatus. Page: 3 of 7
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No. 787,336
UNITED
STATES
Patented August 25, 1905
PATENT OFFICE.FRANCIS CHARLES CAIN, OF BEAUMONT, TEXAS, ASSIGNOR OF ONE-HALF
TO OSCAR CHARLES HERRENKIND, OF BEAUMONT, TEXAS.
PUMPING APPARATUS.
'FECIFICATION forming part of Letters Patent No. 737,336, dated August 25, 1903.
Application filed September 19,1902, Serial No 124,052. (No model.)To all whom it may concern:.
Be it known that I,FRANCIS CHARLES CAIN,
a citizen of theUnited States,residing at Beau-.
mont, in the county of Jefferson and State of*
5 Texas, have invented a new and useful Pump-
ing Apparatus, of which the following is. a
specification.
The present invention relates to. apparatus
for elevating liquids by means of compressed
,0 air, and is particularly intended for deep oil-
wells.
One of the objects of the invention is to pro-
vide means that is entirely automatic for al-
ternately forcing the air into the pump-barrel
r5 and exhausting it therefrom to respectively
raise the liquid to the top of the well and re-
fill the barrel, this mechanism being so ar-
ranged that it will perform the above opera-
tions with speed and precision and being regu-
20 latable to the flow of the well. At the same
time the air in its compressed state is used
over and over again, thus avoiding to a great
extent the loss of power.
.Another object is to provide mechanism
25 whereby a plurality of wells may be operated
by the air from a single compressor, each well
being entirely independent of the others and
separately governed to suit its particular flow.
It is a well - known fact that in pumping
30 many wells the agitation of the liquid causes
the formation of gas, and very often the well
will flow or "gush."
Another and very important object of this
invention is to provide pumping mechanism
35 which will not interfere with this natural op-
eration, but will, in fact, assist it to a very
great extent.
The preferred form of the apparatus.is fully,
illustrated in the accompanying drawings
40 and is described in the following specification,
but an inspection of the claims hereto ap-
pended will show that the construction is open
to various changes and modifications.
In the drawings, Figure 1 is a view in ele-
45 vation of the entire apparatus,.the elevating
means being illustrated on an enlarged scale
and being shown in section. Fig. 2 is an ele-
vation, on an enlarged scale, of the governing
mechanism for the compressed-air supply and
50 exhaust of one well. Fig. 3 is a top plan view
of the same. Fig. 4 is a sectional view throughthe speed - regulating device, and Fig. 5 is a
detail sectional view through the controlling-
valve for the supply and exhaust.
Similar reference-numerals denote corre- 55
sponding parts in all the figures of the draw-
ings.
As shown in the drawings, the well is pro-
vided with the usual tubing 10, the upper end
being closed by the head 11, to which is cou- 6o
pled a pipe-line 12. In the lower end of the
well is placed a pump - barrel 13, that is of
smaller diameter than the tubing and-is pref-
erably arranged concentric within the same.
This barrel has the usual inlet 14 at its lower 65
end, which is controlled by the foot-valve, as
15. A liquid - conveyer pipe 16, that is en-
tirely separated from the tubing, leads from
the lower portion of the barrel 13 to the top
of the well, projecting through the head 11, 7o
as shown. This conveyer-pipe is also pro-
vided in its lower end with a foot-valve, as 17,
which controls the inlet-opening.18 therein.
The upper end of the pipe is curved,as shown,
and has its terminal formed into a nozzle por- 75
tion 19, which communicates with the pipe-
line through a coupling 20 at one side of the
tubing, said nozzle portion being located
above and at an inclination to the pipe-line.
A suitable check-valve 21 is located in the 8o
pipe-line between the. discharge end of the
liquid-conveyer pipe and the-well-tubing.
Arranged in convenient relation to the'well
or wells is an air-compressor, (designated as
a whole by the reference-numeral 22,) which 85
compressor may be of any desired .or well-
known construction. An air - compression
tank 23 is located adjacent to the compressor
and is connected to the high-pressure side of
the same by means of a suitable pipe, as 24. 90
A vacuum-tank 25 is also located neaithe com-
pressor and is connected with the inlet of the
compressor by means of a pipe 26,this vacuum-
tank having a suitable inlet-valve, as 27, nor-
mally held closed, but arranged to-open when 95
the pressure upon the outside exceeds that
within at any amount desired. An air-sup-
ply pipe 28 leads from the compression-tank,
while an exhaust-pipe 29leadsto-the vacuum-
tank, as is clearly shown in Fig. 1. 1oo
Connected with the upper end of the pump-
barrel 13 is an air-conducting pipe 30, which
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Cain, Francis Charles & Herrenkind, Oscar Charles. Pumping Apparatus., patent, August 25, 1903; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth509535/m1/3/?rotate=270: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.