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Патент USA US2105067

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Jan. 11, 1938.
2,105,067
H. ALLEN
PUMP
Filed June 29, 1934
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_ Herbert
Allen
INVENTOR.
IA TTORNEY.
,
I
UNITED " STATES A PATENT OFFICE
2,105,005
‘
PUMP
Herbert Allen, Houston, Ten, assignor, by means
assignments, to Aberc
romble Pump Company,
I Houston, Tex” a. cor poration
of Texas
Application June 29, 1934, Serial No. 733,079
(cl. 103-44)
11 Claims.
'I'his'invention relates to pumps of the type
shown by the patent to Stephens 1,832,258, that is,
pumps designed ‘for pumping abrasive and cor
rosive ?uids."
It has for its speci?c object the provision of
new and improved means whereby the expansi
ble hollow pumping member may be mounted in
its barrel and ?lled with pumping ?uid.
'
The ?anges 50 and 60 serve t 0 prevent leakage
between the interior 0f the pumping member 4
and the space between said‘ member and the bar- -
rel i, and the gasketlll serves to'prevent leakage‘
to the exterior of the barrel I. When the head 5
8 is tightened in place by the bolts 20, the ?anges
50 and 60 and gasket ID are simultaneously com
pressed. ~The outer ends of the rods 1, which
The preferred embodiment of the invention is 'may be three or more in number, pass through
the ring 9 into engagement with the head 8 10
illustrated by the accompanying drawing, where through
e'circumferentially spaced openings ll
in Fig. 1 is a fragmentary partly sectional ele
vation of one barrel of a pump with the hollow (Fig. 2) in the ring 9; and the ring 9 is provided
expansible member mounted therein; and Fig. 2 with fluid passageways l2 communicating with
" is'- a half elevation 'of the pump barrel from the the inlet duct i3 and outlet duct M which are
normally closed by plugs I 5 and I6, respectively. 15
cylinder head end, the cylinder head being re
the pumping ?uid escapes from the member
moved to show the sleeve-retaining ring.
' ‘ As
4 through the packing l1 (Fig. 1) held in place
In the drawing the barrel of the pump is indi
by the gland l8 and nut I
cated at Land the valved inlet and outlet means piston 5 reciprocates, it in 9, through which‘the
20
at 2 and 3. ‘Within the barrel vI is the hollowv tervals, and if air enters ust be replaced at in
the member 4 it must 20
expansible pumping member 4 which is ?lled with be
permitted to escape.
pumping ?uid as hereinafter set forth, which l6 are removed, the du When the plugs l5 and
pumping ?uid is actuated by the reciprocating the admission of addi ct I3 may be utilized for
tional pumping ?uid and
piston
,ito expand and contract the hollow-ex
25 pansible pumping member 4 to draw pumped - for venting the air from the member 4, and the
v ‘?uid into the barrel through the inlet 2 and to lower duct l4 may be used as a drain.
‘
Other objects-will hereinafter appear.
expel it from the barrel through the outlet 3.
When the piston 5 moves to the right on its dis
charge stroke, the hollow expansible member 4
30 is expanded, the ‘valve (not shown) of the inlet
. means 2 remains closed and the valve (not shown)
of the outlet means 3 opens, andthe pumped
‘ ?uidin the barrel I ls-expelled through the out
c:
-
It willnbe obvious from the foregoing that if
it is desired to replace the 'sleeve4, ‘this may
readily be done, as the parts justdescribed may
be quickly and easily taken apart and assembled.
And when the parts are assembled, the ?angeagiii 30
and 60 of the member‘ 4 are between the pump?E
ing- ?uid in the member 4 and the pumped ?uid
in the space between the member] and barrel‘ I",
let means‘lr, when the piston moves to the left and’are therefore subjected only to a few pounds
on its return ‘strokethe, hollow expansible inem- - per
square inch- pressure differential. In prior 35
ber 4'contracts, the valve (not shown) of the out- .
constructions, the c rresponding ?anges were .
let means 3 closes, and, the valve (not shown) of disposed between the pumping ?uid and the at- .
thev‘inlet means opens,‘ and a fresh charge of mosphere,‘
and were subjected to a great pressure
' ‘pumped ?uid is thereby drawn into the barrel I
4° through the inlet means 2.
.
_
Referring now to the new and useful improve
differential, and to sustain it were made of nia
terial harder than the body of the pumping mem- 40
ments provided by this invention, it will be noted .> ber. ' The bonding of a hard?ange to the softer
that themember4has an internal annular ?ange material .of the body of the member 4 presents
at one en'drand an external annular ?ange 60
45 , III
at the other end.- The internal ?ange 50 is held
‘ dl?lcultie's, and lessens the life of the member 4.
In view of the low‘ pressure differential just re
ferred to. the entire sleeve may be‘ made of soft 45
_in sealing engagement with the adjacent inner material.
._
end of the barrel I by the first ring 6 which isin
The invention is not limited to the preferred
turn heldjin placeby' the rods 1 extending there
from to and bearing against the removable head embodiment herein disclosed. Various changes
I, the head 8 ‘ being secured injplace by suitable may-be made within the scope of the following
claims.’
50
bolts 20;“ The-external ?ange 80 is‘ held in seal
I claim:
_
>
'
ing engagement with the shoulder of a counter
1. A pump having a barrel; inlet and outlet
be ‘in the other or outer end of the barrel i by
=9 which‘is engaged'by gasket III pressed means for said barre ; saidv barrel having a coun
srdly by the head I.
'
,
terbored opening in one end; a hollow ‘expansibl'e '
member insertible in said opening having an in- 55
2,105,067
2
'
4
temal annular ?ange on one end to bear against
that end wall of said barrel remote from said
opening, and an external annular ?ange on its
other end to bear against the shoulder of said
counterbore; a support insertible into said mem
ber having a ?rst ring to engage said internal
annular ?ange and a second ring to engage said
external annular ?ange; and a plurality of rods
extending from said ?rst ring into said second
10 ring; a head on the counterbore end of said
?ange at one end and an external annular ?ange
at its other end; of means to seal said ?anges to
the opposite ends of said barrel between a. ?uid
con?ned within said member and a ?uid in said
barrel outside of said member, said means com
prising a pair of rings engaging said ?anges, rods
extending from one of said rings to a point ad
jacent the other of said rings, and an element
engaging said rods and said other ring and ac
cessible from the exterior of said pump‘to cause
rings to compress said ?anges.
barrel engaging said rods; a gasket between said
5. In a pump ofthe character described hav
said second ring and said head; adjustable means _ ing a barrel; said barrel having an open end
to move said head toward said barrel to compress and being otherwise sealed; inlet and outlet
said gasket and ?anges; said second ring having means for said barrel; and a hollow expansible 15
15 ?uid passageways extending substantially radially pumping member in said barrel and having an
and circumferentially therethrough, and being
in communication with they interior of said ex
pansible member; said barrel having upper and
lower ducts communicating ‘with said passage
ways; pumping ?uid in said expansible member,
ducts and passageways; a piston reciprocable in
said head and in co-acting relation with said
pumping ?uid; and means to pack said piston in
said head.
2. A'pump having a barrel; inlet and outlet
25
means for said barrel; said barrel having a
counterbored opening in one end; a hollow ex
pansible member-insertible in said opening hav
ing an internal annular ?ange on one endv to
80
bear against that end wall of said barrel remote
from said opening, and an external annular
?ange on its other end to bear against the shoul
der of said counterbore; a support insertible into
said member having a ?rst ring to engage said
internal annular ?ange and a second ring to en
35 gage said external annular ?ange; a plurality
of rods extending from said ?rst ring into said
second ring; a head on said barrel and engaging
.said rods; a gasket between said-second ring and
said head; adjustable means to move said head
40 toward saidbarrel to compress said gasket and
?anges; said second ring having ?uid passage
ways extending substantially radially there
through and arranged to provide means connect
ing the interior of said expansible member and
45 the exterior of said pump; a piston reciprocable
in said expansible member and through said
' head, and arranged to effect the expansion and
contraction of said expansible member; and
means to pack said piston in said head.
3. A pump having a barrel; inlet and outlet
means for said barrel; said barrel having an
opening in one end; a hollow expansible member
insertible‘ in said opening and having an internal
annular ?ange on one end to bear against that
end wall of said barrel remote from said ‘open
ing, and an external annular ?ange on its other
end to bear against said barrel adjacent said
opening; a support insertible into said member
and having a ?rst ring to engage said internal
60 annular ?ange and a second ring to engage said
external annular ?ange; and a plurality of rods
extending from said ?rst ring into said second
ring; a head on said barrel and engaging said
65 rods; a gasket between said second ring and said
head; adjustable means to move said head toward
said barrel to compress said gasket and ?anges;
70
a piston reciprocable in said head arranged to
e?ect the expansion and contraction of said
member; and means to pack said piston in said
head.
75
-
-
v
4. In a pump of the character described hav
ing a sealed barrel; inlet and outlet means for
said barrel; a hollow expansible pumping mem
ber in said barrel having an internal annular
internal annular ?ange at one end and an ex
ternal annular ?ange at its other end; of means
to seal said external ?ange to said barrel adja
cent‘ said opening, and said internal ?ange to the 20
opposite end of said barrel, said means compris
ing rings engaging said ?anges, rods extending
from that ring engaging said internal ?ange to
that ring engaging said external ?ange, a gasket
on the exterior side of that ring engaging said 25
external ?ange, and an adjustable head bearing
against said rods and gasket.
6. A pump having a barrel; inlet and outlet
means for said barrel; said barrel having a
counterbored opening in one end; a hollow ex 30
pansible member insertible in said opening and
having an internal annular ?ange on one end
to bear against that end wall of said barrel re
mote from said opening, and an external an
nular ?ange on its other end to bear against the
shoulder of said counterbore; a support in
sertible into said member and having a ?rst ring
to engage said internal annular ?ange and a
second ring to engage said external annular
?ange; and a plurality of rods extending from 40
said ?rst ring into said second ring; a head on
said barrel and engaging said rods; a gasket be
tween said second ring and said head; adjust
able means to move said head toward said barrel
to compress said gasket and ?anges; said second
ring having ?uid passageways extending radially
and circumferentially therethrough, and being
in communication with the interior of said hollow
expansible member and upper and lower ducts
communicating with said passageways and ex 50
tending exteriorly of the barrel; a piston re
ciprocable in said head arranged to expand and
contract said member; and means to pack said
piston in said head.
'7. In a pump of the character described having 55
a sealed barrel; and inlet and outlet means for
said barrel; of a hollow expansible pumping mem
ber in said barrel having an internal annular
?ange at one end and an external annular ?ange
at its other end; and means to seal said ?anges to 60
the opposite ends of said barrel between a ?uid
con?ned within said member and a ?uid in said
barrel outside of said member, said means com
prising a pair of rings "engaging said ?anges,
means extending from one of said rings to a point 65
adjacent the other of said rings, and an element
engaging said last named means and said other
ring and accessible from the exterior of said
pump to cause said rings to compress said ?anges.
8. In a pump of the character described having 70
a barrel; said barrel having an open end and be
ing otherwise sealed; inlet and outlet means for
said barrel; a hollow expansible pumping mem
ber in said barrel and having an internal annular
?ange at one end and an external annular ?ange 75
2,105,067
at its other end; and means to seal said external
?ange to said barrel adjacent said opening, and
said internal ?ange to the opposite end of said
'
3
for said barrel; of a hollow expansible pumping
member in said barrel; said member having
?anges at its inner and outer ends directly engag
ing the walls of said barrel; a removable outer
head for said barrel; means for clamping the
said internal ?ange to that ring engaging said . inner end ?ange against the barrel walls includ
external ?ange, a gasket 'on the exterior side of
that ring engaging said external ?ange, and an ing a member abutting the inner surface of said
and means also engaging said head for
adjustable head bearing against said last named head,
clamping the outer end ?ange against the barrel
10 means and said gasket.
walls.
‘
‘
9. In a pump of the character described having
11. In a pump of the character described hav
‘ a sealed barrel; and inlet and outlet means for ing a sealed barrel; and inlet and outlet means
said barrel; of a hollow expansible pumping mem
for said barrel; of a hollow expansible pumping
ber in said barrel; said member having barrel en
member
barrel; said member having a
gaging ?anges; and means to seal said member in ?ange ‘atinitssaid
inner end; means for sealing the
- said barrel comprising rings to engage and com~
end of said member to the barrel walls; a
press said ?anges to the barrel, a head for said outer
removable ‘head for the outer end of said barrel,
barrel engaging one of said ‘rings, and means and
means for clamping said inner end ?ange
engaging the other. ofvsaid rings and said head against
the barrel walls, said clamping means
20 independently of said last named ring.
directly abutting the inner surface ‘of said head. 20
10. In a pump of the character described hav
ing a sealed barrel; andv inlet and outlet means
HERBERT
barrel, said means comprising rings engaging said
?anges, means extending from that ring engaging
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