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Sept. 16, 1947.
w. H. DE LANCEY
2,427,552
LIQUID MEASURING AND DISPENSING APPARATUS
Filed Nov. 11, 1944
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LIQUID MEASURING AND DISPENSING APPARATUS
Filed Nov. 11, 1944
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LIQUID MEASURING, AND DISPENSING APPARATUS
Filed Nov. 11, 1944
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LIQUID MEASURING AND DISPENSING APPARATUS
Filed Nov. 11, 1944
5 Sheets-Sheet 4
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INVENTOR
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ATTORN YS
Sépt. 16,1947.
w, H, DE LANCEY
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2,427,552
LIQUID MEASURING AND DISPENSING APPARATUS
Filed Nqv. 11, 1§44
5 Sheets-Sheet 5
INVENTOR
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‘ATTORNEYS
2,427,552
Patented Sept. 16, 1947
UNITED STATES PATENT ‘OFFICE
LIQUID MEASURING AND DISPENSING
APPARATUS
Warren H. De Lancey, Spring?eld, Mass., assign
or to Gilbert & Barker Manufacturing Com
pany, West Spring?eld, Mass., a corporation of
Massachusetts
Application November 11, 1944, Serial No. 562,979
6 Claims.
(01. zap-72)
'
1
This invention relates to improvements in
liquid measuring and dispensing apparatus, par
ticularly adapted for use at service stations in
dispensing measured quantities of gasoline and
and control valves and which has mounted on
it a suitable meter 2 and a motor 3 for driving
the pump. Gasoline from an underground stor
age tank 4 is drawn up by the pump through a
suction pipe 5 into the air separating chamber
the like.
and thence through meter 2 into the discharge
The invention has for its general object the
piping, which includes ?xed piping B and a ?ex
provision of an apparatus of the class described
ible hose 1. The hose ‘I hasat its delivery end a
in which separation of air from the liquid is af
nozzle 8, having a self-closing valve which may
fected under the favorable condition of partial
be manually opened by the lever 9. A suitable
vacuum and in which a. single pump is arranged
visible-discharge indicator Ill may be interposed
to scavenge the air from the separator, whenever
between the piping 6 and hose 1, as indicated.
required, and to draw the air-free liquid through
The suction pipe 5 is provided with the usual
the meter and force it out through the dispens
foot valve, indicated [2. The meter drives by
ing hose.
The invention has for a further object, the 15 means including the shaft | 3 a suitable register
such as M, which may, as indicated, show the
provision in apparatus of the class described of
quantity and cost of the gasoline dispensed.
a single pump of the variable-capacity type for
the dual purpose of scavenging the separator
and dispensing the liquid.
Referring next to Figs. 2 and 3, the ‘casing l is
divided by a vertical partition l5 into an air
A further object of the invention is to provide 20 separating chamber 16 and a pump chamber H.
The two walls I8 and I9 which parallel partition
in an apparatus of the class described a separa
l5 are made removable as covers and are suitably '
tor having upper and lower outlets for air and
held to the casing, as by screws 20—gaskets, such
liquid respectively, a pump having its suction
as 2|, being interposed one between each cover
side connected to both said outlets and its pres
sure side connected to the dispensing hose-—a 25 and the casing to make the joints liquid tight.
The separating chamber I6 (Figs. 3 and 4) has
meter interposed in the connection from the lower
a single inlet to which the upper end of pipe 5 is
outlet to the pump, and means preventing pas
connected and two outlets 22 and 23 arranged,
sage of air from the lower outlet and the passage
respectively, near the top and near the bottom
of liquid from the upper outlet, whereby the one
pump may draw air from the separator and force 30 of the chamber. The lower outlet 23 is connected
to the meter 2 and thence to thepump while the
it into the hose without passing through the
upper outlet 22 is connected directly to the pump,
meter and may draw liquid from the separator
as will later be described in detail.
through the meter and force it through the hose.
These outlets 22 and 23 are controlled by valves
The invention will be disclosed with reference
to the accompanying drawings in which
’ 35 24 and 25, respectively, which are actuated, as
by ?oats 26 and 21, in response to variations in
the level of gasoline in chamber IS. The lower
valve 25 opens in response to rise of liquid above
a predetermined level in the separator and closes
Fig. 2 is a sectional plan view taken on the line
2-2 of Fig. 1 showing the separator and pump 40 when the liquid falls to said level. Such level is
above the top of outlet 23. Valve 25 is thus ar
ing unit;
'
ranged to prevent the passage of air through
Fig. 3 is a sectional elevational view taken on
outlet 23 and into the meter 2. The valve 24
the line 3-3 of Fig. 2;
7
closes in response to rise of liquid above a pre
Figs. 4, 5 and 6 are cross sectional views taken
Fig. 1 is a. diagrammatical view of a liquid
measuring and dispensing apparatus embodying
the invention;
on the lines $4, 5-5, and 6-6 respectively, of 45 determined level and opens when liquid falls to
Fig. 3;
.
Fig. 7 is a plan View, partly in section of the
meter;
Fig. 8 is a fragmentary sectional view taken on
50
the line 8-8 of Fig. 5; and
Fig. 9 is a fragmentary sectional view'taken '
on the line 9-9 of Fig. 7.
Referring to these drawings and ?rst to Fig. 1
thereof, the apparatus includes a casing I, which.
or below such level. Such level is below the bot
tom of outlet 22. _Valve 24 thus allows the pas
sage of air from the separator but prevents the
passage of gasoline.
'
‘
Each of the valves 24 and 25 is, or may be,
constructed in the same general manner and a
description of one will su?ice for both. The lower
valve 25 only will be described in detail and
parts of the upper valve 24 which correspond to
has within it an air separating chamber, a pump, 55 parts of the lower valve will be given the same
2,427,552
4
reference numerals with the addition of a prime.
end to receive the crankpin 4|. The shaft 55
The valve 25 is a slide valve, being reciprocable
has ?xed to its upper end a coupling 61, which
in a vertical plane over a seat 28, suitably ?xed,
lies within the chamber 51. Engaged with this
as by screws 28, to partition I5 and containing
coupling is a shaft 68 which extends vertically
the outlet port 23. The valve may be of carbon
upward through the chamber I1 and through the
and the seat of chrome-plated metal to enable
top wall thereof and has ?xed to its upper end
relative sliding movement with relatively little
a coupling 68’ to connect with the register driv
friction. A metal frame 38, substantially U
ing shaft I3, above described. Shaft 68 is sup
shape in cross sectional shape, has its lower side
ported in suitable bearings, one in the top wall
edges secured as indicated to the sides of seat 10 of chamber l1 and one in 9, lug 69 on partition
28 and provides a guide for the valve. Springs
I5. A collar 18 on shaft 68 engages the upper
3|, engaged at one end with spring seats on the
cross wall of guide 38 and at the other end in
recesses in the valve, serve to press the valve
end face of the bearing in lug 69 to take care
of the end thrust.
The upper outlet 22 of the separator (Fig. 2)
against its seat. The ?oat lever 32 is pivoted at 15 connects through a port 1| in partition I5 with
one end at 33 to frame 38 and passes through
the inner end of a cored passage 12 which is
slots 34 one in each of the side walls thereof.
These slots serve to limit the swinging movement
of the ?oat lever. The lever 32 is provided ,with
formed in one upper corner of the pump chamber
H (see also Fig. 5) and extends to the outer face
thereof, terminating with a circular port 13 for
a lateral extension 35 which ?ts into a recess in 20 connection to the pump.
the valve-whereby the valve may be raised and
lowered as the ?oat rises and falls.
The meter 2 may be of any suitable type.
As
The passage 63 con
nects with this passage 12. In the other upper
corner of chamber |1 (Figs. 2 and 5) is a second
cored passage 14 which has at one end a circular
shown in Fig. '7, by way of illustrative example,
port 15 for connection to the pump and at the
it is of the positive-displacement type, having a 25 other end a, tapped opening 16 for connection to
plurality of radial cylinders 36 radiating from a
the pipe 6, above described.
central chamber 31. Pistons 38, one in each cyl
The cover I9 (Fig. 6) has formed therein cir
inder, are interconnected in opposed pairs by
cular inlet and outlet ports 11 and 18 which reg~
pairs of bars 39. The two pairs of bars 39 are
ister with the ports 13 and 15, respectively. Con
at different levels to avoid interference (see also 30 necting with the ports 11 and 18 are cored pas
Fig. 3), and one piston of each pair is con
sages 19 and 88 which extend downwardly in the
nected by a rod 48 to a crankpin 4|, ?xed eccen
cover and communicate with the main inlet and
trically to the top of a valve 42. The latter is
outlet ports 8| and 82, respectively, which open
rotatably mounted on a stud 43 ?xed in the bot
through a ?nished base wall 83. The pump in
tom wall of chamber 31. Cored in the bottom 35 cludes a hollow outer casing 84 (Figs. 3 and 5)
walls of the cylinders (Fig. 3) are longitudinal
and an inner wall or cover 85 (Fig. 3), which are
passages 44, one for each cylinder, each leading
secured as by the screws 86 to the base wall 83,
from the clearance space 45 in a cylinder head
which forms the outer wall of the pump.
46 to a port 41 in the bottom wall of chamber
Mounted in the space within casing 84 is the
31. Surrounding the stud 43 is a central and 40 pump proper which consists of a stator 81 of
more or less annular discharge passage 48 which
hollow cylindrical form and a cylindrical rotor
empties into a radial passage 49 and a commu
88, which is rotatably mounted on a stud 89 ?xed
nicating vertical passage 58, all such passages
at one end to cover 85. The rotor is provided
being cored in the body of the meter. The meter
with a circular series of singularly-spaced radial
body is secured to the bottom of the casing I 45 slots to slidably receive, one in each radially slid
by means of a ?anged coupling 5| and cap screws
able blades 98. Each end face of the rotor is
52 and 53, respectively passing through the upper
recessed to receive an annular ring 9|. The two
and lower ?anges of the coupling and threading
rings 9| serve to hold the outer edges of the
into the bottom wall of casing | and the top
blades 98 in contact with the inner peripheral
wall of meter 2. Gaskets 54 seal the joints and 60 surface of the stator 81. The rotor, stator and
render the connection. liquid tight. This cou
blades are substantially equal in length to the
pling 5| has a central bearing for a shaft 55
casing 84 and slide freely over the ?nished face
and around this hearing are passages 56 which
- 83 and the ?nished inner face of cover 85.
connect the conical chamber 51, above described,
The pump is of the variable-capacity type and
to the inlet chamber 31. A passage 58 connects 55 its stator may be moved in response to pump out
chamber 51 to the lower outlet 23. The cou
let pressure to shift the stator from the illustrated
pling 5| also has a vertical passage 68 (Fig. 9)
position of maximum eccentricity relative to rotor
which connects the meter outlet passage 58 to
88 to various other positions of less eccentricity
a port 6| and a communicating horizontal pas
and also into concentric relation with the rotor.
sage 62 (Figs. 2 and 3), both formed in the bot 60 To elfect this result, the stator is pivotally con
tom wall of chamber I1. A passage 63 formed
nected by links 92 and 93 to the wall of casing
in a vertical wall of chamber l1 connects pas
84. The link 93 extends beyond the rotor and
sage 62 to the suction side of the pump.
terminates with a fork 94 which straddles a rod
The valve 42 has suitable ports, such as an
95 and lies between a collar 96 and the hub of a
inlet port 64 (Figs. 3 and 7), for connecting the
piston 91, both hub and collar being ?xed to the
inlet chamber 31 to a port 41 for one cylinder
rod. The piston 91 is slidably mounted in a cyl
36, and an outlet port 65 for connecting at the
inder 98 formed in the casing 84 and having a
same time the port 41 of the opposed cylinder
separable head 99 in which is mounted a screw
36 to the discharge passage 48. The liquid en
I88 forming an adjustable abutment to limit the
tering chamber 31 is distributed successively to 70 downwardly movement of the piston. The rod
the cylinders 36 to so move the pistons 38 as to
95 is slidably mounted at its upper end- in a hole
rotate the valve 42 continuously in one direction.
in casing 84. A spring I8I, coiled around rod 95
The movement of the pistons is made to actuate
acts between a wall of casing 84 and collar 96
the shaft 55 by means of a crank 66 (Fig. 3)
with a tendency to hold the piston 91 against
?xed to the lower end thereof and having a forked
stop I88 and the stator '81 in its position of maxi- -
2,427,552
5
mum eccentricity and maximum pumping capac
ity. The outer end of the cylinder 98 is con
nected to the outlet port 82 of the pump in the
following manner. Two intersecting holes I02
and I03 (Fig. 6) are drilled in the cover I9 from
the top wall and from one side wall thereof and
these holes lie between the outlet port 80 and
the outer face of the cover as shown in Fig. 8.
The outer ends of holes I02 and I03 (Fig. 6) are
' closed by plugs H04 and I05, respectively. The
hole I03 extends inwardly as far as the pump dis
charge port 82 and is connected thereto by a
drilled hole I06.
The hole I02 extends down
wardly as far as the lower end of cylinder 98 and
\
rator outlet 23 will normally be ?lled with liquid
and the separator I6 itself will normally be ?lled
at least up to the level of inlet pipe 6. Valve25
will be open. If there is air in the chamber, I6
above pipe 6, the valve 24 will also be open. If,
however, the separator is ?lled with liquid up to
the desired predetermined level the valve 24 will
be closed. If now, the motor 3 is started, the
pump will start coincidentally therewith but until
10 the valve of nozzle 8 is opened,no ?uid, either
liquid or gaseous, can be pumped through the
hose. Accordingly pressure will be built up in
the discharge conduit and the pump stator 81 will
be shifted to its position of minimum pumping
is connected thereto by holes I01 and I00, respec 15 capacity, whereby very little power will be con
sumed because very little ‘work is being done.‘
tively (Fig. 8), drilled in cover I9 and in the base
However, as soon as the valve of nozzle 8 is fully
of the cylinder 98. Thus, liquid from the pump
opened, the pressure will drop and the pump
outlet port can enter the cylinder 98 and act on
stator will be shifted into its position of maxi
the piston in opposition to spring I0 I.
The motor 3, as herein shown includes a shell 20 mum pumping capacity. Liquid will immediately
be drawn through the meter and. forced out of
I09 (Figs. 1 and 3) formed integrally with cover
the hose. If there is too'much air in the sepa
I9, which serves in part as one end plate of the
rator, then the pump will also draw out air and
motor. The other end plate H0 is a removable
discharge it into the hose with‘the gasoline but
one, as indicated in Fig. 1. The stator lamina
tions of the motor (Fig. 3) are shown in part at 25 the air stream will not go through the meter and
be measured. As soon as enough of the air is
H! and the stator winding is shown in part at
drawn out of separator IS, the valve 24 will close
H2. The rotor II3 has a-shaft H4 located co
and continued action of the pump will then be
axially of the pump rotor and mounted in suit
devoted exclusively to pumping liquid. As soon
able bearings, including a ball bearing H5 ?xed
in the outer port of a recess H6 in cover I9. In 30 as the desired quantity of liquid has been dis
pensed,-the operator closes the valve of nozzle
the other end of this recess is a bushing I'I‘I hav
8 and the pump stator is then shifted by the
ing a ?nished end face which is engaged by a
rising pressure to its position of minimum pump
suitable seal ring II8 on shaft H4. A spring H9,
coiled around this shaft, presses the seal ring 35 ing capacity. The pump continues to work at this
low rate until the motor 3 is stopped but little
against said face of the bushing Ill. The inner
end of shaft H4 has a splined engagement with
the pump rotor so as to drive the same and yet
enable the pump to be removed in a direction
power is consumed because little work is done.
The invention thus offers a liquid dispensing
and measuring apparatus, wherein the separa
axially of the shaft without removing the rotor 40 tion of air from liquid can be effected ef?ciently
under the favorable condition of partial vacuum;
H3 or its shaft “4.
wherein one pump serves the two purposes of
In the initial operation of the apparatus, the
priming the apparatus or scavenging the separa
motor 3 is started and the pump placed in opera
tor and also dispensing liquid; wherein power
tion. The upper outlet valve 24 will be open and
consumption is kept low by the arrangement for
the lower valve 25 initially will be closed. The
the
one pump to workat varying rates accord
valve of nozzle 8will be held open. The pump
ing to the need; and wherein a pump of large
will then operate at its maximum pumping rate
capacity to secure quick. priming and scavenging
and exhaust the air from suction pipe 5 and
as
well as speedy delivery of liquid can be used
then from separator chamber I6. The pump is of
because
of the arrangement for it to work at very
large enough size so that this operation may be 50
low rates when substantially no pumping is re
quickly accomplished. As soon as liquid has been
quired. The one pump works only when needed
drawn up pipe 5 and into chamber iii to a level
above the lower outlet port 23, ?oat 21 will have
and at such rate as is needed.
The pump will
pump air only when that is what is necessary.
risen sufficiently to open valve 25. The pump will
At other times it may pump liquidonly. And at .
then act to draw ?rst air and then liquid through 55 still other times it may pump both air and liquid
the meter eventually ?lling the discharge conduit
but the air will be by-passed around the meter
with liquid, whereupon the valve‘of nozzle 0 will
and not measured even though it is mixed with
be closed. Closure of the nozzle valve is followed
the gasoline and discharged through the hose.
by arise in pressure in the discharge conduit and
The valves 24 and 25 predetermine whether the
. the pressure acting on piston 91, shifts the pump 60 pump will pump air or liquid or a mixture of the
stator 81 into nearly concentric relation with the
rotor, whereby to reduce the rate of pumping and
avoid the expenditure of power for doing unneces
two and the pressure in the discharge conduit
controls the rate of pumping.
I claim:
~
.
-
sary work. The pump will do only so much work
1. Liquid measuring and dispensing apparatus,
as is necessary to overcome the slippage in the 65 comprising, a container having an' inlet adapted
pump and will operate at a very low rate. As
for connection to a liquid supply tank and upper
soon as the motor, 3 is stopped, the pressure will
and lower outlets, a single pump having its inlet
gradually fall and, as it falls, the pump rotor
connected to both of said outlets,‘a meter in
‘will be shifted to increase its capacity,
terposed in the connection from the pump to the
In normal operation, the pump will usually be 70 lower outlet, a valve for closing the lower outlet
in a. Position of maximum pumping capacity at
to prevent flow of air therethrough and opening
the time when the motor 3 is started. The dis
by the rise in level of liquid above said outlet, and
charge conduit including hose 1 and pipe 6, the
a valve for the upper outlet open to discharge air
and closing by the rise in liquid level in said
pump, the meter and the intervening passages
as well as the passage between the lower sepa 75 chamber to a level adjacent the upper outlet.
7
2,427,552
2. Liquid measuring and dispensing apparatus,\
comprising, a container having an inlet adapted
for connection to a liquid supply tank and up
per and lower outlets, a single pump having its
pump and having an inlet for connection to a
low-level supply tank and having two outlets ar
ranged one near the top and one near the bot
tom of the separator, a conduit connecting the
upper outlet to the inlet of said pump, a meter, a
conduit connecting the lower outlet to the inlet
of said meter, a conduit connecting the outlet of
inlet connected to both of said outlets, a meter
interposed in the connection from the pump to
the lower outlet, a valve for closing the lower out
let to prevent flow of air therethrough and open
said meter to the inlet of said pump, a discharge
ing by the rise in level of liquid above said out
conduit for said pump, means controlling the ?ow
let, a valve for the upper outlet open to discharge 10 from said lower outlet and automatically opening
air and closing by the rise in liquid level in said
to permit the passage of liquid and closing to pre
chamber to a level adjacent the upper outlet, and
vent the passage of air, and means for controlling
separate ?oats in said chamber for actuating
the ?ow from said upper outlet and automatically
said valves.
opening to permit the passage of air and closing
3. Liquid measuring and dispensing apparatus, 15 to prevent the passage of liquid.
comprising, a container having an inlet adapted
6. Liquid measuring and dispensing apparatus,
for connection to a liquid supply tank and upper
comprising, a- single positively-acting pump hav
and lower outlets, a single variable-capacity
ing means movable to vary its pumping rate, an
pump having its inlet connected to both of said
air separator located on the suction side of said
outlets, a meter interposed in the connection 20 pump and having an inlet for connection to a
from the pump to the lower outlet, a valve for
low-level supply tank and having two outlets ar
closing the lower outlet to prevent flow of air
ranged one near the top and one near the bot
therethrough and opening by the rise in level of
tom of the separator, a conduit connecting the
liquid above said outlet, and a valve for the upper
upper outlet to the inlet of said pump, a meter, a
outlet open to discharge air and closing by the 25 conduit connecting the lower outlet to the inlet
rise in liquid level in said chamber to a level ad
of said meter, a conduit connecting the outlet of
jacent the upper outlet.
said meter to the inlet of said pump, a discharge
4. Liquid measuring and dispensing apparatus,
conduit ‘for said pump, means controlling the
_ comprising, a pump, an air separator located on
?ow from said lower outlet and automatically
the suction side of said pump and having an inlet 30 opening to permit the passage of liquid and clos
for connection to a low-level supply tank and
ing to prevent the passage of air, means for con
‘ having two outlets arranged one near the top and
trolling the ?ow from said upper outlet and au
one near the bottom of the separator, a conduit
tomatically opening to permit the passage of air
connecting the upper outlet to the inlet of said
and closing to prevent the passage of liquid, and
pump, a meter,_a conduit connecting the lower 35 means responsive to the pressurehin the discharge
outlet to the inlet of said meter, a conduit con
conduit for operating the ?rst-named means
necting the outlet of said meter to the inlet of said 7 whereby the pumping rate decreases as the pres
pump. a discharge conduit for said pump, means
sure rises and increases as the pressure falls.
controlling the ?ow from said lower outlet and
WARREN H. DE LANCEY.
automatically opening to permit the passage of 40
liquid and closing to prevent the passage of air,
REFERENCES CITED
and means for controlling the ?ow from said up
The following references are of record in the
per outlet and automatically opening to permit
?le of this patent:
the passage of air and closing to prevent the pas
45
sage of liquid.
UNITED STATES PATENTS
5. Liquid lneasuring and dispensing apparatus,
Number
Name
Date
comprising, a single positively-acting pump, an
2,292,007
Morgan ___________ __ Aug. 4, 1942
air separator located on the suction side of said
2,330,634
Shoemaker _____ _’___ Sept. 28, 1943
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