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Патент USA US2404258

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July 16,1, 1946.
R. R. TRExLER
2,404,258 »
' LIQUID nl_sPENsING APPARATUS
Filed Dec'. 9, 1942
3 Sheets-Sheet l
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, July 16, 1946.
R. R. .TREXLE'R ' _
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-'2,404,258
LIQUID -DIsPENsINGf APPARATUS
Filed Dec. 9,_1942
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@- 1
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5 Sheets-Sheet 2
July 16, 1946.
R. R. TREXLER LIQUID DISPENSING APPARATUS
'JZ-fa
_ v Filed Dec. 9, ’1942
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2,404,258
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_ :svsheets-sh'ee? s
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Patented July 16, 1946
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2,404,258
UNITED STATES PATEN T oFFlci-z
2,404,258
LIQUID DISPENSING APPARATUS
Richard R. Trexler, Evanston, Ill.
_
Application December 9, 1942, Serial No. 468,363 `
12 Claims.
1
(01.'222-728)
This invention relates to fluid dispensing appa- ,
ratus, and particularly to apparatus adapted to
dispense liquids in measured quantities while si
-multaneously calculating the cost thereof at a
given or selected cost per unit of volume.
It is an object of the invention to provide a
fluid dispensing apparatusvof improved construc
' tion and operating characteristics, and more par
ticularly to provide improved means for. calcu
lating the cost of the fluid orliquid dispensed.
In accordance with the principles of the inven
tion cost calculating fluidvariator means is dis
posed directly in the flow line _of the dispensed
fluid, said means controlling the flow of fluid
Within a selected portion ofthe line in a manner
so as to enable the accurate costv calculation
thereof at variable and selected prices per unit
of measure.
_
f
ì `
`apr'aaratus housingl being broken awayltoïbetter
illustrate certain of the structuralelements;
-
Fig. 2 is a partial, sideand sectionalview; of -
the apparatus shown in Fig. 1, and takenon the
line 2_,2 thereof;
Fig. 3 is arhorizontal sectional view through
the apparatus of Fig-_1, on the line 3_3 thereof;
Fig. `4 isa detail horizontal sectional View, on
*an enlarged scale, of the fluid l_variator structure,
and takenon the lines 4-_4as lindicated in Fig.~1
andFig, 5;
_ `__
._
Fig. 5 is a detail vertical sectional view o'f'the
fluid
Figjöis
variatoron
a detail
theAsectional
line 5_-5,view
of Fig.
of a4;"control
`
valve‘structure
optionally butl preferably forming
a part ofythestructure of Fig. 1;
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¿
Fig. 7A is a detail sectional view of a portion
of the valve Vmechanism of. Fig. 6, on theline 1_1
Further objects of the invention are to provide
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cost lcalculating means, in apparatus of the type 20 thereof;
-` Fig. 8 isla sectionalview similar to Fig. 4, but
stated, which may be more economically con
illustrating a modiñedform of ñuid variator
structed, and which is accurate in operation and
_structurer
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,_
n
_
readily adjustable to effect cost calculations at
variable and selected unit prices. `
A
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' Fig. 9 is a partial ~detail view of a portion-_of
_¿ ,
, . ’ lf@
'
Another object of the invention, in one of its 25 the apparatuspf Fig_f8;
,
1
Fig.
m10/
-is
a'
View,
also
similar
Vtolï’ig.
.4,
but
aspects, is to provide in a, iluid variator structure,
showing another modified form of fluid Avariat'or
means whereby the adjustment of a single mem
structure, and takenA on âthe line IU-IU of Fig.
ber will effect the corresponding accurate adjust
ment of the fluid variator mechanism throughout
` Fig. 11k is a'partial View
its selected range of price adjustment.
30 ratus, utilizing the fluid of a l,dispensing appa;
A still further object of the invention is to pro
variator structureV of
vide for the cost calculation of the iiuid dispensed,
Fig.
10;
and
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Y Fig. 12 isa view of a modified and more simpli
fied formvof control valve, which may be optional
ly-used Yin> substitution Vfor thev 4control valver of
mechanism of the meters provided, and without 35 Fig.
6.
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the provision of mechanical variator means or
other cumbersome mechanism.
Referring more rspecifically to the drawings,
_
Another object of the` invention is to provide
in apparatus of the type stated, for a minimum
load upon the meter
i
to facilitate accurate meter operation, and also
to enable the use of lessy expensive and more read
ily lconstructed metering units.
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Various other objects, advantages and features
of the invention will be apparent‘from the fol
lowing specification when taken in connection
with the accompanying drawings, wherein cer
tain preferred embodiments of the invention are
set forth for purposes of illustration'. ‘
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In the drawings, wherein'like reference numer
als refer to like parts throughout:
"
Fig._.1 is a general assembly'view of a liquid
dispensing apparatus constructed in accordance
zwiththe principles of the invention, parts of the 1
and first to the embodiment of the invention illus
trated in Figs., 1 to 7 inclusive, in Fig. 1, the dis-_
pensing apparatus illustrated may be of the gene
eral type lOrdinarily provided for the dispensing
of _gasoline »for automotive vehicle use, although
it is to be understood thatthe invention in its
various aspects isv not limited to apparatus of
this character. ',I‘h'e dispensing apparatus illus-,
trated comprises an upstanding housing l0 adapt
ed to be associated with an underground storage
tank I l containing the liquid, l2 forming the sup
_ply source for thedispensing
'
apparatus.
VA dispensing pump I3 which maybe of any
conventional type,V and provided'with a by-pass
valvev or the like, draws the liquid l2 from .the
underground tank into Vthe pump by means of a
pump inlet pipe Ifli. The l,pump is drivenv by
an electric _motor Vor other suitable <prime ?mover
-| 5 through f' ‘the intermediary of a belt I6 and
2,404,258
4
3
:associated pulleys I1 and I8. The motor is con
trolled by a switch I9 actuated by a'rod 20 con
54, Fig. 5, held in position by screws 55. This
screen effects an even distribution of the liquid
nected Vto the nozzle support 2| which is piv- '
received into the fluid variator from the pipe 29,
causing the fluid to tend to- move upwardly
through the variator with substantially uniform
velocity over its entire horizontal cross sectional
otally mounted upon the housing I8 and is adapt
ed to be pivoted upwardly when the dispensing
nozzle 22 is removed therefrom.
.
The lower casing portion 52 carries a fine screen
The arrange
ment is such that when the nozzle support is piv
oted upwardly, as stated, switch I9 is operated
' to energize the driving motor l5.
The dispensing pump' I3 propels the dispensed
area.
l
As best shown in Figs, 4 and 5, the upper casing
portion 5I vof the fluid variator is` provided with
a'face plate portion .56; 'forming aY horizontally '
liquid through an outlet, pipe v25 'into an- 'airand
extending barrier across the entire casing struc
vapor eliminator 25 which may be of>> conven
V tional construction. An outlet pipe 21 leads fromy
the air eliminator to a volume metering device>
ture.
Formed integral with the plate 55 is a
vertically extending baffle wall 51, this baffle wall
z effecting a separation of the upper casing portion
28. As illustrated, the meter 28,l isk ofthe „nutat
5I intoA twoE separated chambers 58 and 59 asso-4
ciated, respectively, with the pipe 3| leading to
the cost meter'Sí-l,- and the pipe 32. The baille
ing plate type, the construction of_ whichwill-„be „
well understood by those familiar withthe art.
However, it is to be understood that ‘any’ sort- - .wall 51-is provided with three enlarged bearing
of conventional meter may be employed.A Anutat’
bosses 89, 6I and 62, at preselected spaced'points
ing plate type meter has been illustrated because 20 along its length, andthe plateëâ is provided with
in. accordance with the. principles. of the present
arcuate slotsv t3V andsß4rconcentric with the. boss
' inventionLthe. reglster driving. forces required of
the meter are minimized,` enabling the use 0f a
‘50,k with arcuate` slots 65. and 65, concentric with
the` boss 5I, and with arcuatel slots 6_1 andg68,
concentric with` the boss 5,2. Theends` of these
as shown. As will be understood, the meter may 25 arcuate slots projectup to but not through the .
A, be provided with suitable Calibrating means, to
plane of the. vertically disposed baffle wall 51.
relatively’li‘ght and economical type meter, such
insure its accuracy of measurement.
In other words, theadjacent ends of the slots are
From the meter 28 the dispensed liquid passes
spacedv apart by a distancefequalto the thickness
through an outletïpipe 29 into a. fluid variator
38, .the construction` of which. will be hereinafter
described. Within the fluid variatorthe fluid
or liquid .flow may be divided, and passes there
30
of thebafñe wall 51..
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rlîhe separator plate or wall 56 is provided with
three. circular raised or embossed" portions 19
throughA which the pairs of slots are cut, whereby
from .Y through., apair ofïparallel pipes vor con
.to provide bearing surfaces for engagement by
duits4 3l 'and_.3.2.. AÍcost metering device 33 is
the variator discs presently` to be described.
"'associatedrwith'the. pipe 3|., to. effect the meas 35 There. are. three of thesel embossed or raised Vpor
urement of liquider fluid passing therethrough.
tions 10, one` for each pair-of slots, and each of
From the meter33l the vfluid measured thereby
the embossed portions forms a complete; circle
passes Athrough an outlet pipe 34» joining the-fluid
whereby tov provide complete circular and fluid
from the pipe 32 within a T connection 35. The
tight bearing surfacesl for the variator discs.
40
combined ñuids from both pipes 3| and 32 flow
The pipesy orv conduits 3l and-32’ are indicated' by
outwardly through the pipe'36to a sightl gauge
v.dot and dash lines in Fig.. 4 to diagrammatically
31, and then to the usual flexible hose 38¿ and dis
show the vlocation of these outlet pipes, dot and
pensing .nozzle 22 providedwith a` manual control
dash lines being used. to indicatel that the pipes
' Valve 39.
are >physically arrangedA in the,v structure, above
As illustrated.. the. cost meter 33,» is `also of the 45 the section line alongj which Fig. 4 is taken..
nutating plate type, as. in» the case- of the vol
Referring furtherto-Figs. 4 and;5, three varia
urne meter 28, for the reasons-heretofore pointed
tor discs as indicated at,13, l114. and 1-5 are associ
out'. However, as in the case of the volume meter,
ated, respectively, with> the slot pairs (i3-«64,
it is.,to. be. understood. that anyy conventional.` type
65-68 and 61-7-58;` these». discs being-.keyed or
~ Íof meterf may». if desired, be» used; A control
valve structure as indicated at 48, mayfalsof be
optionally provisiled` in- the pipe-„32, thus; dividing
the, pipe ï3,2> into-separate sections 32' and 32.".
The_purpose ancL function of this control~ valve
structure will also be later described.
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otherwise ñxed- tozthe'- ends of shafts 15, 1j1 and
18 journaled in the- bearing bosses 853,61 and 62.
Themanner in which the disc, 14‘ is keyed to the
endof its associated shaft "I1 is shown in Fig. 5',
the
connection comprising a key 89 anda nut 8l
Ul Ul
'lïhevolume meter 2.8.'»is- arranged- toY drive a
shaft ,4.3. suitably. connectedV by- driveconnections
4345.120 drive. a volumeregister45 provided at the
upper front. portion ofthe housing.- Similarly
the. cost. meter 3.3,fis1 arranged to drive a shaft 46
connectedby means. of drive- connectionsl 41 to
drive a cost. register 48. As shown inFig. 2„the
volumeand ,cost registers may. be duplicated on
the opposite. face of` the apparatus, as indicated
at. l49,` the/se: registers also Vbeing drivingly' con
' nect'edtothelmeter shafts 4,3.andu46~,.for simul
tanleous, operation Vwith the registers 45 and> 48.
"The fluid-` variator.v structures, and theirv ar
rangement .with the other elementsof the system,
are showninFigs. 1.„ 2, 3,4 and; 5.. The-duid
»variatorggenerally indic'atedby the.A numeral 30
irrFigs.` 2„3, 4 and. 5„1comprisesa;two-partcas
ing or. housing., viz., Vanupper housineportíon 5|
kand a lower housingportionâlflanged andi con- V
nect'ed V together. by." 'meansof bolts .or screws 53. '
threaded onto the end ofthe shaft for holding
the disc in position. Similar-,mounting means
may be employed for. securing the other discs. 13
and 15, respectively, onto their associated shafts
15 and 18. As also best shown in Fig. 5, each of
the variator discs is preferably provided with a
bearing washer as shown at 82, of neoprene or the `
like, for fluid-'tight bearing engagement against
the associated plate boss 10. A compression
_ springf83,‘Fig. 5, bearing at its upper end against
a collar 84 and at its lo-wer end against a packing
'gland member 85 maintains thewashers 82 and
bosses 19 in fluid-tight bearing engagement.
The particular spring 83 illustrated in Fig. 5 is
associated with the shaft 11 and its variator disc
14, but it is tobeunderstood that similar means
is provided foreach of the variator disc struc
tures.
The collar 84~is adjustable on the' shaft
1»1 lay-means of .aset screw.r 8S `whereby to-properly
control thev compression of the spring 83:` Also,
2,404,258`
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the' packing glandmember 85 is threaded into a
boss 81 providedas a partvof thev casing 5`|,¿where->
by >to effect the compression vof a packing'88,vpre-
shown,- are provided 'betweenfthe “cents" chain t
»|08 and the “cents” registeri'dials, and between
the “tenths” chain |09 and;the-“tenthsîfregister
-`venting liquid'leakage alon'g‘ the shaft 11; ‘ As
indicated, similar means >is provided for each of
the three Variatorvdisc shafts._
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_Disc 13,r which is the “tens” variator disc, is
provided with nine openings 90. Disc 14, which
Ais the “units” variator disc, is provided with nine
openings 9| and disc‘15, which is the "tenths’f
variator disc, is provided with nine openings 92.
Cn
dials. Accordingly, ‘it will be seen that selective
adjustment of the knobs |02, 99 and |03 effects
the corresponding adjustment of the `variator
discs, `and the simultaneous adjustment of Athe
dials of the price per gallon registers.
,
To insure uniformity of action vwithin the cas
10 ing of theiluid variator, and to insure uniformity
of operation of the Vvariator discholes von either"l
AThe openings or holes `9| _in disc 1||Í are of such
side of the baille wall 51,v in lcertain instances it
size or area that they will permit the passage of
may be desirable to insure equalized pressure con
ten times as much liquid as will pass through the
holes 92 of the disc 15, at lthe same fluid or liquid 15 ditions within the chambers 58 and 59. One
preferred arrangement to effect such result `is
pressures. Similarly, the holes 90 in disc 13 are
>illustrated in Figs. 6 and 7. As shown,sthe pipe
of such size that they will permit the passage of
or conduit 3| leading to the meter 33 is provided
tentimes as much liquid as the holes 9|, or one
with a T fitting ||6 to the open end of which is ,
hundred times as much as the vholes 92. Each
secured a plate |I1 forming onel of the plate ele
of the Variator discs is independently rotatably
ments of a diaphragm structure generally indi
adjustable, the arrangement being such that its`
cated by the numeral || 8. -The plate ||1r coop
nine holes may be exclusively on one side of .the
erates with another plate || 9, the two v`plates
baille wall 51, or on the other side thereof, ordi
being peripherally secured together by bolts `|20
-vided in any desired proportion. Those holes
whichl are set to discharge into Vthe variator 25 to thereby grip an interposed flexible diaphragm
element |2| of neoprene or the like.
. , H -.
chamber 58 transmit fluid or liquid which vwill
Interposed
in
the
pipe
32,
between
the
pipe
sec
be measured »by the cost meter 33, which is di
. tions 32 and 32’ is a fìtting‘comprisingv a mainrectly connected to the cost register. AAccord-`
body |22 and an auxiliary body or head portion
ingly, it will be seen that the setting of the varia
tor discs Will determine the proportion of the fluid 30 |23 flanged and secured _to the main body- |22‘by
securing bolts | 21|.` A plateV member ;| 25 p'r„o~`
or» liquid which will be measured by the meter
vided with openings for the passage of fluidA is
33, in relation to that whichis by-passed through
held in position by the fitting head |23.v A sec
the pipe 32. Adjustment of the discs in accord
ond` plate member |26, also provided with open’-y '
ance with the selected unit price per unit of vol
umewill therefore effect the proper actuation of 35 ings for the passage of fluid, is laterallyshift
able within the conduit by means yof a link `>,|21
theY cost meter 33 and the f associated directly
pivotally mounted upon a cross bar |28 formed
connected cost register, in a `manner to cause the
as a part of the main f'lttingbody |22. The link
cost register to accumulate> and register the
|21 is pivotally connected to and operated by- Ta
proper cost of the dispensed fluid at the selected
unit price per unit of volume. For example, in 40 link |29, the end of which is anchored to> the
diaphragm member |2|. It is tobeunderstood
Fig.y 4 the variator discs are set to compute the
that the fitting body |22 is threadedly'connected
dispensed liquid at a unit price per gallon of `>24.3
to the plate ||9 of the diaphragm device ina
cents, the unit price indicated on the “price per
gallon” register -95, Fig. l. The variator illus-A
fluid-tight threaded connection.
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Normally, when the structure is 'in operation,
trated can effect the .calculation of costs at unit 45
the openings inthe plates |25 and |26 are suf
prices fromone-tenth of a cent per gallon to 99.9
ficiently out of alinement or -out of phase so as
cents per gallon, although in ordinary usage the
to impart a slight resistance to fluid flow _within
the conduit 32-32’, equalto the pressure [drop
The means for effecting the adjustments of- the 50 normally occurring `within the cost meter ,33,
thereby maintaining. equal pressure conditions in
discs are best shown in Figs. 1, 2, 3 and 5. As
shown in Fig. 5, the upper end of shaft 11 is
the variator chambers 58 and 59. In' the event
provided with a bevel gearl 96 meshing witha
that the` cost meter should encounter increased
resistance, pressure within the pipe 3| would tend
bevel gear 91 Vfixed to a shaft 98 which shaft, as
best shown in Fig. >3, projects outwardly through 55 to increase, thereby shifting `the diaphragm ele-`
the side 4of the housing |0 ‘and is provided With
ment |2| tothe right as seenin Fig. 6, shifting
an operating knob v99. Similar means is provided
the plate |28 tothe right, and thereby shifting ‘
the alined openings inthe plates |25 and |26
for each of the variator discs, the adjustment
further out of phase to correspondingly increase
shaft for the “tens” disc 13 being indicated at
|00 in Fig. 3, and the adjustment shaft for the 60 the pressure within the »pipe 32 so as to maintain
equal pressures-within the chambers V58 and v59.À
“tenths” disc being indicated at |0|. Shaft |00
Conversely, if the pressure Withinpipe 3| -tendsl
is provided with an operating knob |02 and shaft
|0| is provided with an operating knob |03.
to decrease, the plate |26'is shifted to theleft as
Sprockets |04, |05 and |06 are provided, respec-Y
seen in Fig. 6, moving the alined openings. in
tively, on the shafts | 00, 98 and -I 0|, these sprock 65 the plates |25 and |26 further into phase to cor
ets being connected by chains |01,r |08 and |09,
respondingly decrease the pressure in pipe 32.
Fig. 2, so as to effect the actuation of the adjust
By this means equalized pressures within the
variator is not called upon to effect calculation
over this wide a price variation or range.
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able dials of the price per gallon register 95 _ chambers 58 and 59 at all times-is assured.
provided on the front of the housing, and also
The operation of the structure kis believed tobe
preferably a duplicate price per gallon register 70
clear. v As thevnozzle support 2| is raised ener--.~
||0 on the rear housing face. y To this end the
chain |01 for the “tens” shaft |00 is arranged
to actuate a sprocket || | connected by means of '
chains I|2 and ||3 to the “tens dials” ofA the
gizing the motor |5 by means of switch I9, pumpi3 operatesto propel fluid through thedispensf»`> ,
ing line.
The entire volume `of liquid flow -is
measured by the volume meter 28 directly con-
indicators 95 and ||0. Similar connections, not 75 nected to operate `the,volume register ~,||5._-_:¿I_ri,
2,404,258
'thefñuidîvariator`30 the fluid is divided in accord'
this-instance provided with slots |3.'|-and- |38` for
` -ance'with the desired unit price per unit of vol-`
. Referringîto Fig. ll, the single shaft |40 upon
which the disc `|35 is carried, is in this instance
cooperation with the discslot |36.
uma,` part' of the flow passing through the pipe
3|1to‘be measured by the cost meter v33, and part
ofthe flow being ley-passed aroundthe cost meterV
through the pipe 32, the flows 'being combined
within the iitting 35 to be thereby dispensed from
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provided wtih a worm gear |-4| cooperating with
a worm |42 secured on the end of an adjustment
shaft |43. An adjustment knob» |44 is providedy
on the opposite end 'of the shaft |43. A single
indicator dial |45 cooperating with a fixed index
the nozzle 22v in thefusual'manner. By means of
thef control valve structureof Fig. 6, equalized
pointer |46 is secured to the upper end of shaft
pressure conditions are maintained within the 10
|40.
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y‘fluid variator chambers 53 and 59, and by means
The arrangement of the parts is suchA that as
of the adjustment knobs> 99, |02 and |03, Fig.` 3,
the disc slot | 36 is in position to begin the initial
the variator discs may be preset so that the cost
introduction of fluid into the chamber 58h, the
calculation takes place at the selected price per
zero indication is exhibited on the dial‘ |45' in
gallon.
..
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alinement with the fixed frame orhousing point-V
In accordancewith the structure provided, the
er |45. As the dial |415 reaches a position to
' , meters-are subjected to a. minimum driving load.
indicate the dispensing of the liquid, at one
Meter'v inertia: is thus minimized and accuracy is
tenth cent per gallon, the slot |36 will be in p07
promoted. Also, meters of'lower cost type may
20 sition to deliver one part of the dispensed fluid
b‘e'ßused’.r No adjustment mechanism of the meter
isfprovidedzfor varying. or modifying the displace
mentor operatingv characteristics in accordance
with the price changes, and costly and cumber
into the chamber 58h and the other nine hundred
and ninety-eight parts into the chamber 59h, as
will be` clear from what has heretofore been
pointed out. Adjustment of the single knob |44
somer mechanical variator mechanisms> are elim
inated.
25
In Fig. 8 a modified form of variator structure
effects` price calculation throughout the desiredY
range of adjustment, the price per gallon to
which the variator is set being indicated bythe
isk provided. In this instance the “tens” varia
indicator structure U15-|46.
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tor disc 13a instead of .beingñprovided with large
In Fig. 12 a modified form of control valve,
openings as in the embodiment previously de
which may be used in place of the structure
scribed, is provided instead with blocks of small 30 shown in Figs. 6 and-'7, is illustrated. In this in
' openings, to yeffect the same rfunctions and pur
stance the conduit 32o is provided with a spring
poses. More speciñcally, the “tens” variator disc
controlledv relief valve |50. More specifically, a
‘|3a- is in this instance provided with nine blocks
tension spring |5| normally urges the, valve into
of openings 90a, there being one hundred open
seated `position against the fluid flow as indi
ings or holes in each block. These holes are 35 cated by the arrow. One end of the spring is
the same size asA the holes 92a in the “tenths”
connected to ther valve and the other end of the
disc 15a. Similarly, the “cents” disc 14a. is pro
spring is adapted to be anchored to 4and wrapped
vided Ywith nine blocks of holes Sla, there being
around a rotatable adjustment screw |52. Rota
ten holesin each block, and theholes being of
tion of the adjustment screw |52 varies the ten.
40
the same size as the holes 92a of the disc 15a.
sion of the spring |5I, thusV varying the pressure
Accordingly, it> will be seen that each blockv of
Y drop which will be effected by the passage of
holes in the disc '|4a`will eiîectA the passage of
the iluid through the relief valve. A cap |53 cov
ten times the amount of ñuid which will pass
ers the end of the adjustment screw |52, thus pre
Vthrough a given hole 92a, whereas each block of
venting unauthorized operation thereof. In ac
holes 90a of the disc 13a will effect the passage of
cordance with this Áform of structure, the valve
one >hundredv times the‘ amount of fluid> as `one
hole 92a, under the same pressure conditions.
Accordingly, it will vbe seen that the function
and -operation of the .variator thus provided is
similar to that described` in connection with Fig.
4»except that in this instance all of the holes or
openings within the variator> discs are of ithe
same size insuring absolute uniformity ofoper- '
ation, withv respect to each other, under all. pos
sible;varying conditions of pressure. and rates of
fluid flow within the dispensing line. In Fig. 9
the detail of the arrangement ofv the holes in the
l `diseisa isiuustrated.
In Figs. 10'and 11 a variator arrangement is
illustrated’wherein a single variator disc is em-v
ployed to effect price changes throughout the de.
sired price range. In this instance a single var
iator disc |35 is provided, Said disc having a con
` tinuous concentric slot |36 of uniform section
formed therein. As this slot is progressively
movedl from one side to the other of the baille
Wall 51D, it will be seen that a progressively in- ~
creasing or decreasing amount of fluid, as the
case may be, is transmitted to the pipe line 3io
to be measured by the cost meter arranged there
|50 is adjusted to eiTect a pressure drop corre
spending to the resistance encountered by the
cost meter in its normal operation, thus main
taining equalized pressures Within the outlet
chambers Of the fluid variator. '
It is to be understood that rwhile the opening
or openings in the variator disc or discs inthe
severalembodiments operate as flow control ori
ñces, the collective area thereof isY in each in
stance sufliciently large so as to proudce nosub
stantial impediment to _the liquid flow there
through even when the pump I3 yis delivering at
its main'mum dispensing rate. It will alsov be un
derstood that the openings in the discs |25, |26,
Fig. 6, when> in full alignment, and the action of
the valve |50, Fig. l2, when the spring |5I is'at
a minimum tension, are such as to produce no
substantial pressure drop even when the pipe 32
" or'the pipe 32e, as the case may be, is transmit’
ting substantially lthe entire liquid flow.
It is obvious that various changes maybe made
in the speciiic embodiments of the invention set
forth for purposes of illustration without depart
ing from the spirit of the invention. The in
vention is accordingly not to~be limited to the
in, whereby to effect variable cost calculations
in accordance with the principles of the inven
specific embodiments shown and described', but
tion. It is to be understood that the plate 56h,
in the embodiments previously described, is in
1. Fluid.A dispensing apparatus comprisingladis-~
only as indicated in the following claims.
¿ The invention is hereby claimed as follows;
2,404,258
pensing-line adapted to be connected to a source
l
10
,
iiuid dispensed per unitfof volume for controlling
the iiuid- iiow to the meter to thereby controlthe
of iiuid supply, said dispensing line terminating
in a dispensing outlet, metering means vfor meter
ing a portion of the fluid flow within the'dispens
operationof the register;
-
i
-
’
_7. Fluid dispensing apparatus comprising a dis
ing line, a cost register connected to the' meter
for registering the cost of the iiuid dispensed, and
pensing line adapted to be connected to a source
of fluid supply, said dispensing linev terminating
ina dispensing Aoutlet adapted to transmit the
fluid engaged means calibrated r in accordance
with the unit cost of the fluid dispensed per unit
entire ñuid flow within the dispensing line, a
first »meter arranged inthe dispensing line for
of volume for controlling said. metering means
and thereby the cost register, said calibrated
metering the entire dispensing fluid flow therein,
means being variable in accordance with unit cost '
a register connected to said meter, a second me
While the displacement of the meter remains un
changed.
ter connected to said dispensing line for meter
ing a part only of the dispensing iiuid iiow there
2. Fluid dispensing apparatus comprising a dis
pensing line adapted to be connected to a source
through, a register connected to said’second me
ter, and means calibrated in accordance with the
function registered by at least one of said regis
ters for proportioning the iiow between the
of fluid supply, said dispensing line terminating
in a dispensing outlet, means to propel ñuid _l
through the dispensing line, cost register means
meters.
for registering the cost of the fluid dispensed,
8. Fluid dispensing apparatus comprising a
and register operating mechanism including
means calibrated in accordance with the unit
cost of the ñuid dispensed per unit of volume for
variably proportioning the iiuid now within a por
tion of the dispensing line in respect to the total
fluid flow to control the cost register.
3. Fluid dispensing apparatus comprising a dis
pensing line adapted to be connected to a source
of fluid supply, said dispensing line terminating
dispensing .line adapted to be connected to a
source of iiuid supply, said dispensing line ter
minating in a dispensing outlet, a meter arranged
'
,
in said dispensing line for metering the entire
dispensing flow therethrough, a register con
nected to said meter, a portion ofJ said dispens
ing line being provided with conduits connected
in parallel adapted to collectively transmit the
dispensing fluid flow, a second meter arranged in
one of said conduits and the other of said con
30 duits being in by-pass relation to said second
for registering the cost of the fluid dispensed, a Y
meter, a second register connected to said second
portion of said dispensing line being provided
meter, and a control device in the dispensing line
with conduits in parallel for collectively trans
in a dispensing outlet, means to propel iiuid
through the dispensing line, cost register means
mitting the iiuid iiow, and register operating
mechanism including means calibrated in accord- .
ance with the unit cost of the iiuid dispensed per
unit of volume for variably proportioning the ñow
for proportioning the fluid iiow between said par
allel conduits.
’
9. A ñuid dispensing apparatus as deñned in
claim 8, wherein the register connected to the
ñrst meter is a volume register, and wherein the
register connected to the second meter is a cost
4. Fluid dispensing apparatus comprising a dis 40 register, and wherein said control device com
prises a fluid variator mechanism calibrated in
pensing line adapted to be connected to a source
accordance with the unit cost of the fluid dis
of fluid supply, said dispensing line terminating
pensed per unit of measure.
in a dispensing outlet, means to propel iluid
within said parallel conduits to control the cost
register.
'
‘
'
through the dispensing line, cost register means
for registering the cost of the fluid dispensed, and
register operating mechanism including means
calibrated in accordance with the unit cost of
10. Fluid dispensing apparatus comprising a
dispensing line adapted to be connected to a
source of fluid supply, said dispensing line ter
minating in a dispensing outlet, metering means
the fluid dispensed per unit of measure for con
for metering the iiuid liow within the dispensing
tering iiuid ñoW within the dispensing line, a
comprising a single cost calibrated member.
line, a cost register connected tothe metering
trolling the iiuid iiow within a portion of the
dispensing line in accordance With the unit cost 50 means for registering the cost of the iiuiddis
pensed, and means calibrated in accordance with
of the iiuid dispensed per unit of measure.
the unit cost of the dispensed fluid'per unit of
5. Fluid dispensing apparatus comprising a dis
measure and disposed in the dispensing line for
pensing line adapted to be connected to a source
controlling the fluid iiow to the meter to thereby
of fluid supply, said dispensing line terminating
control the cost register, said calibrated means
in a dispensing outlet, a metering device for me
11. Fluid dispensing apparatus comprising a
dispensing line adapted to be connected to a
source of fluid supply, said dispensing line termi
nected in parallel for collectively transmitting the 60 nating in a dispensing outlet, a metering device
for metering fluid now within the dispensing line,
dispensing fluid flow, said meter being arranged
a register connected to the meter for registering
in one of said conduits and the other of said con
duits being in by-pass relation to the meter, and ' a function of the fluid dispensed, a portion of
said dispensing line being provided with conduits
means calibrated in accordance with the function
connected in parallel for collectively transmit
registered by the register for variably proportion
ting the dispensing fluid flow, said meter being
ing the iiuid iiow between said conduits to there
register connected to the meter for registering a
function of the fluid dispensed, a portion of said
dispensing line being provided with conduits con
by control the operation of theregister.
6. Fluid dispensing apparatus comprising a dis
pensing line adapted to be connected to a source
of fluid supply, said dispensing line terminating
in a dispensing outlet, a metering device for me
tering fluid flow within the dispensing line, a
arranged in one of said conduits and the other
of said conduits being in by-pass relation to the
meter, means calibrated in accordance with the
function registered by the register for variably
proportioning the fluid now between said con
duits to thereby control the operation of the reg
ister, and pressure control means for maintain
cost register connected to the imeter for register
ing uniform pressure conditions within the corre
ing the cost of the iiuid dispensed, and means
calibrated in accordance with the unit cost of the 75 sponding portions of said parallel conduits.
12. Fluid dispensing apparatus comprising a
elemente
.
fll
-
v
dispensing line »adapted ¿toçfbe --connected'toqa -
4 the meter; means calibrated inwaccordanee with»
the' unit »cost of the. fluid l‘dispensed per unit of
source of íiuid supply», saiddispensing line'termi- Y
nating in a dispensing outlei-„a >metering»dei/'ice
a
for-metering fluid flow withinthe'díspensing line,
volume ffOr «proportieníng the-fluid :new to ¿the
_ meter sto therebyïfcontról" the «operation of» the
ayçost register connectedto the meter for regis
tering-the cost of `the fluid dispensed, a portion
of said dispensing »line >being provided with con
duits-connected in parallel _for collectively trans
mitting the dispensing V‘fluid-flow, said meter be 10
ing varranged at one oí-said conduits and the other
ofasaid `conduits being »in ley-pass relation ¿with
register, said calibrated means .being operable -to
at least >double-the fluid ~-flow=to the fmeter, »and
pressure control-means v»for maintaining uniform
pressure conditionsîwithin corresponding portions .
o'f said parallel conduits.
'SR‘ICHARD in. Trama.
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