Pump Page: 4 of 5
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1,202,153
and 46 and discharges through the valves
48 and 50. The water entering the chamber
30 is discharged -through the outlet 31.
Above each valve, in line therewith, the top
5 of the valve chest 15 has an opening 52
which is closed by a cover 28 having a guide
for the valve stem and also serving as an
abutment for one end of the valve spring.
The bolt 22 carries a clamp 27 for holding
10 the covers of the valves 43 and 44, the clamp
for the covers of the valves 48 and 49 is car-
ried by the bolt 23, the clamp for the covers
of the valves 50 and 51 is carried by the
bolt 24, and the clamp for the covers of the
15 valves 45. and 46 is carried by the bolt 25.
The bolts 21, 22, 23, 24 and 25 seat in the
partition 38, the-same being vertically aper-
tured for this purpose. The bolts 21, 23 and
24 also pass through the discharge chamber
20 30, and in thelatter, between the top there-
of, and the bottom formed by the partition
32,. are webs 53 which are apertured. to
house the bolts 23 and 24. From the side
wall of the chamber 30 extends a web 54
25 which is apertured for the bolt 21. It will
therefore be seen that where the bolts pass
through the water chambers of the valve
chest, they are completely covered and
housed, which prevents the water or other
30 fluid from passing along the bolts and leak-
ing out at the top. The bolts are also pro-
tected against corrosion.
In the operation of pumps it is a common
occurrence, from one cause or another, for
36 the fluid end of the pump to crack, or the
valves to cut around, especially when han-
dling slush in drilling wells, the same con-
taining much grit, and the valves are also
liable to be cut by the sand in the fluid. In
40 either case, the destruction or ruin of a valve
seat, in the old method of casting the valve
chest integral with the pump cylinder, ren-
ders the entire valve chest and cylinder use-
less. However, by casting the valve chest in
45 one piece, separate from the cylinder, the
cutting of a valve requires only a new valve
chest, and the cracking of the cylinder would
not destroy the valve chest. It will there-
fore be evident that the up-keep and main-
50 tenance of the pump is considerably cheap-
ened. With the valve chest and cylinder
cast in one piece it is also impossible to ob-
serve the interior 'part of the casting, and
note the natural casting defects, such as blow
55 holes, shrinkage, cracks, etc., but where the
valve chest is cast separate, these defects are
easily observed, as a complete view of the
interior may be had. It is also possible to
observe all ports, cored holes, etc., and to
60 determine whether there has been a shifting
of cores, or any other trouble that would be
likely to reduce the thickness of the metal in
one place and add to the thickness in an-
other. A further advantage of the present
65 design is that as uniform thickness of metalmay be provided for, doing away with any
possibility of thinner sections cooling more
rapidly than a thick section, and also elimi-
nating the natural segregation of metal
which cannot be detected beneath the cast- 70
ing scale, and if so detected will prove de-
fective under actual use.
I claim:
1. A valve chest for pumps formed in
one piece with a discharge chamber and a 75
plurality of inlet chambers separated -by
partitions, said inlet chambers having
valved inlets and outlets, the latter opening
into the discharge chamber, and fastening
bolts for the valve chest passing there- 80
through and through one of the aforesaid
partitions, certain of said bolts also passing
through the discharge chamber, and said
chamber having webs through which the
last-mentioned bolts mass and in which they 85
are housed and shut off from the interior of
the discharge chamber.
2. A valve chest for pumps formed in one
piece with a discharge chamber and a plu-
rality of inlet chambers separated by parti- 90
tions, said inlet chambers having valved in-
lets and outlets, the latter opening into the
discharge chamber, fastening bolts for the
valve chest passing therethrough and
through one of the aforesaid partitions, cer- 95
tarn of said bolts also passing through the
discharge chamber, and said chamber hav-
ing webs through which the last-mentioned
bolts pass and in which they are housed and
shut off from the interior of the discharge 100
chamber, the valve chest also having open-
ings in line with the aforesaid valved inlets
and outlets, closures for said openings, and
holding means for the closures carried by
the aforesaid bolts. 105
3. A valve chest for pumps formed in one
piece with a discharge chamber and a plu-
rality of inlet chambers separated by parti-
tions, said inlet chambers having valved in-
lets and outlets, the latter opening into the 110
discharge chamber, fastening bolts for the
valve chest passing therethrough and
through one of the aforesaid partitions, cer-
tain of said bolts also passing through the
discharge chamber, and said chamber hay- 115
ing webs through which the last-mentioned
bolts pass and in which they are housed and
shut off from the interior of the discharge
chamber, the valve chest also having open-
ings in line with the aforesaid valved inlets 120
and outlets, closures for said openings, nuts
screwed on the outer ends of the aforesaid
bolts, and damns mounted on the bolts un-
der the nuts, said clamps engaging the clo-
sures: 125
4. A valve chest for pumps formed in ono
piece with a discharge chamber and a plu-
rality of inlet chambers separated by parti-
tions, said inlet chambers having, valved in-
lets and outlets, the latter opening into the 1300
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Black, Lee J. Pump, patent, October 24, 1916; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth857859/m1/4/?rotate=90: accessed July 6, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.