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Патент USA US2110106

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March 1, 1938.
c. A. DESIMONE
2,110,106
FLUID DISPENSING APPARATUS
Filed April 30, 1937
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March 1, 1938.‘
c, A. DESlMONE
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FLUID DISPENSING APPARATUS
Filed April 30, 1957
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Comvzuus Kl. Des/nous,
2,110,106
Patented Mar. 1, 1938
UNITED STATES PATENT OFFICE
2,110,100
non) msrassmo mana'ms
Cornelius a. Deaimone, Oynwyd, r... m to
John Wood Mann!actor-ing Oosnmy. Ina.
Oonshohocken, Pas a corporation of Delaware
Application April 80, 1937, Serial No. new
lclaims. (Cl. 221-95)
My invention‘ is particularly applicable to ment or platform at a curb or driveway and in
metering pumps for dispensing gasoline. Such
apparatus includes a meter through which the
liquid is forced by a pump from a supply tank to
5 and through a dispensing hose. Said pump is
actuated by an electric motor which is energized
and deenergized by manual operation of an elec
tric switch by the operator, and said meter is
operativelyv connected with an indicator, for
10 manifesting by numerals the quantity of liquid
. dispensed in gallons and fractions of a gallon.
Of course, in order to insure dispensation of a
given quantity at any operation, it is necessary
that the indicator be at its zero position at the
15 beginning of each dispensing operation. There
fore, such apparatus includes what is termed
“setback" mechanism, ordinarily manually oper
able by a crank exterior to the apparatus casing.
However, apparatus of that simple character may
20 be used to cheat the customer if the operator
either wilfully ~or unintentionally fails to set the
indicator back to its zero position before begin
ning a dispensing operation. Therefore, it is
ordinary practice to’ provide such a metering
25 pump with automatically operative locking
mechanism for positively preventing the initia
tion of any dispensing operation until the indi
cator is placed in its zero position. However, such
mechanism is complicated and correspondingly
30 costly. Therefore, it is the purpose and effect of
my invention to provide an electrical circuit for
the pump motor with two electrical switches, in
series, one operatively connected with the ordi
nary hook lever, used as a support for the dis
35 pensing hose when the latter is in idle position;
the other switch being operatively connected with
said setback mechanism; the relation of the
parts being such that the indicator must be set
to zero position before the second switch is auto
40 matically closed ‘to complete the circuit, when
the first switch is manipulated to close it.
My invention includes the various novel fea
tures of construction, arrangement, and method
of operation hereinafter more de?nitely speci
In said drawings:
,
Fig. I is a fragmentary front elevation of a
metering pump of what is known as the “curb
stand" type for dispensing gasoline and includ
50 ing a convenient embodiment of my invention.
Fig. II is a fragmentary elevation of said ap
paratus as seen from the right hand side of
Fig. I.
In said figures; the apparatus is mounted in a
55 housing which is adapted to be fixed-on ‘a pave
cludes a base member and top-member, not
shown, connected at their corners by four cy
lindrical standards. The pair at the front are
indicated at I and the pair at the back at I, '5
Said standards are cross connected by trans
verse frame members, only one of which is in
dicated at I in the drawings, connected with said
standards I and 2 by the U-bolts I and l.
The meter mechanism which is inclosed in the 10
casing ‘I, only the upper portion of which is
shown in the drawings, includes the shaft 0 which
is turned by the fluid passing through the meter.
Said shaft I is connected by the coupling I with
the shaft ll depending from the casing H which 15
contains indicating mechanism comprising two
series of wheels respectively indicated at it and
II in Fig. 1. Each of said wheels is decimally
numbered at its circumference and the num
bered surfaces of said wheels I! and II are re- 20
spectively presented at windows II and II in the
indicator face plate It as shown in Fig. I which,
with its appurtenances is duplicated on the op
posite side of the apparatus as indicated at it’
in Fig. 11.
25
In the form of my invention chosen for illus
tration, the indicating mechanism is in fact a
computing registering mechanism which includes
a series of decimally numbered wheels II which
may be manually set to display at windows ll 30
in said face plates ll and it’ numbers represent
ing the price per gallon of gasoline to be dis
pensed. As indicated, the price is eighteen cents
but the right hand wheel ll represents tenths
of a cent and might be set to represent from one 35
to nine tenths of a cent. The right hand wheel
I! shown in Fig. 1 represents tenths of a gallon.
The two other wheels I! represent whole gal
lons, and ten gallons are indicated. The two
right hand wheels II represent cents and the 40
left hand wheel it represents dollars, and ti.”
is shown as the total value of the ten gallons at
eighteen cents a gallon which have been dis
pensed.
Mechanism to set back to zero position the 45
numbered wheels i2 and II at the termination
of each operation includes the crank 2i. Said
crank II is operatively connected to manually
turn the setback shaft 22 by intermediate coup
ling members indicated in Fig. I. Said shaft 22 50
is mounted to turn in bearings supported by
the opposite side plates 23 and 24 of the indi
cator mechanism casing ii and, the right hand
end thereof with respect to Fig. I has rigidly
connected therewith the cam 25 shown in Fig. 55
2
2,110,108
II, which is inclosed within the switch box 25
supported by said casing plate 24 and con
veniently provided with the removable cover
plate 25' which is shown in place in Fig. I but
omitted in Fig. II to disclose the switch mecha
nism.
Said transverse member 5 of the housing sup
ports the bearing bracket 28‘ in which thehook
lever 25 is pivoted on the pin 25. The entire
housing above described is inclosed in a sheet
metal casing including four panels upon the
respective sides thereof, only a fragment of one
panel being indicated in Fig. I at II. The right
hand end 29' of said hook lever 25 projects ex
15 terior to said sheet metal housing casing II and
is hook shaped to support the dispensing hose
and the ordinary valve controlled nozzle at the
dispensing end thereof. The drawings show said
lever 25 and 25’ in the position to which it is
depressed by the weight of the hose and noule
when placed thereon in idle position. The in
ner end of said lever 25 is pivotally connected
with the right angularly bent lower end of the
link 42. The upper end of said link 32 is pivot
ally connected with the right hand end of the
main switch lever 44 which is fulcrumed on the
pivot stud l5 ?xed in said switch box 25. Said
cator numbered wheels 12 and I3; whereupon,
such snap action closes said auxiliary switch 45
to bring the movable terminal 43' in contact
with the fixed terminal 4|’ and thereafter hold
it there until said switch lever 45 is positively
moved to its open position shown in Fig. Ii.
Such opening movement is effected by the main
switch lever 24 as hereinafter described.
As above noted, the indicator is not in zero po
sition and the hook lever 25 is in the position 10
to which it is shifted by the weight of the hose
and nozzle when hung on the hook end 25' of
that lever in idle position. Therefore, if the
operator removes the hose andinozzle to effect a
dispensing operation and by manipulation of 15
said hook lever 25 pushes the main switch lever
34 to closed position bringing the movable ter
minal 42' into contact with themed-terminal
45’, such movement does not affect the posi
tion of the auxiliary switch lever\ 45 because 20
the tappet plate 51 which then encounters the
right hand end of the auxiliary switch lever
45 is merelytilted stressing the tappet spring
35 far enough to let said plate slip past said
lever 45 in its upward movement, and the elec
tric motor remains inoperative because the aux
iliary switch remains in the open position shown
main switch lever 34 carries the tappet plate ll - in Fig. II.
which is pivoted thereon at 38 and normally
stressed to the position shown in FigpIl by the
spring 38 and is operative as hereinafter de
scribed.
The two electric conductors 45 and 4| supply
electrical energy for operation of the pump mo
35 tor which is not shown but which is provided
with the two electric conductors 42 and 43. Said
'supply conductors 45 and 4| are connected re
spectively with terminals 40' and 4|’ which are
fixed in stationary position in said switch box
40 24 as shown in Fig. 11. Said motor conductor
42, which is ?exible, is connected with the ter
minal 42' which is fixed on said main switch
lever 54 and movable therewith to and from
contact with said supply terminal 45'. Said mo
45 tor conductor 43, which is flexible, is connected
with the terminal 43’ which is ilxed'on-and
movable with the auxiliary switch lever 45, which
is fulcrumed on the pivot stud 45 fixed in said
switch box 25. Said auxiliary switch terminal
43' is thus arranged to be carried to and from
contact with the stationary supply terminal 4|’
by said auxiliary switch lever 45.
Said auxiliary switch 45 is not dis
placed by such movement of the tappet plate
21 because the spring 50 in the toggle lever 45
is stronger than the tappet spring 39. As above
noted, said auxiliary switch can only be closed
by turning the setback crank 2i until the indi
cator is in zero position. 'I'hereupon, the ener
gizing circuit of the motor being completed the 55
pump will operate to dispense liquid under the
control of the valve in the hose nozzle‘ manipu
lated by the operator.
_
It may be observed that said tappet plate 51
which is rigidly supported by the main switch 40
lever 54 in downward movement of the tappet
plate serves to insure that such downward move
ment shall leave the auxiliary switch 45 in the
open position shown in Fig. I, said tappet plate
forcing said switch lever 45 downward by such 45
movement until the right hand end of said aux
iliary switch lever 45 rests upon the stationary
lug 5| in said switch box 25 as shown in Fig. 11.
It is to be understood that the switch mech
anism shown in Fig. 11 is thus placed in open
position as to both switches only when the hook
lever 25 is depressed manually, by the weight
The toggle lever 45 is fulcrumed on the tap
bolt 49 in said switch box 25 and carries the
55 plunger 49’ which is continually stressed up
wardly by the spring 50 in said lever 45 so as
to bear upon the toggle arm 45' of said auxiliary
of the hose and nozzle, or otherwise, to its lower
most position shown in the drawings which is
the position in which it should be placed at the 55
end of each dispensing operation.
switch lever 45 with the effect of normally hold:
ing said auxiliary switch in its open position
shown in Fig. II. However, said toggle spring
50 also effects snap movement of said auxiliary
switch to its closed position in which the ter
minal 42' is in contact with the terminal 4i’
whenever said auxiliary switch lever 45 is tilted
65 downwardly at its left end until the point of
contact of said toggle plunger 45' with said
equally_ applicable to‘ any ?uid dispensing ap
paratus including an electric motor, indicator,
and setback mechanism for the latter, regard
less of whether the indicator is of the computing
registering type or not.
Therefore, I do not desire to limit myself to
the precise details of construction and arrange
toggle arm 45' is moved to the left of a line
drawn through the centers of said pivots 45
and 45. However, the latter snap action is not
70 e?’ected unless and until said setback shaft 22
is- turned clockwise by the operator manipulat
ing the crank 2i and of course, counter-clock
wise in Fig. ‘II, so far that said cam 25 rides
over the left hand end of said auxiliary switch
75 lever 45 to the ‘precise zero position of the indi
It is to be understood that my invention is
ment herein set forth as it is obvious that vari 65
ous modifications may be made therein without
departing from the essential features of my
invention as defined in the appended claims.
I claim:
1. In ?uid dispensing apparatus including an 70
electric motor circuit, indicator and setback mech
anism for the latter, and a movable support for a
dispensing hose; a main electric switch included
in the motor circuit; means operatively connect
ing said hose support with that switch; an aux- 75
3
iliary switch in said circuit, in series relation with means operatively connecting said aux-diary
with said setback mechanism; and means
said main switch; and means operatively con , switch
necting said auxiliary switch with said setback for operatively connecting said main switch with
mechanism; whereby, said indicator must be set said auxiliary switch to open said auxiliary
switch by opening movement of said main switch
back to zero position to elect closure oi.’ said aux
including a tappet pivotally carried by said main
iliary switch, and both switches must be closed to switch
lever and a spring stressing said tappet
> energize said motor circuit before any ?uid can
to operative position on that lever; whereby, said
be dispensed.
. 2. In ?uid dispensing apparatus including an indicator must be set back to zero position to
" electric motor circuit, indicator and setback elect closure of said auxiliary switch, and both 10
-IO
mechanism for the latter, and a movable support switches must be closed to energize said motor
‘for a dispensing hose; a main electric switch in
cluded in the motor circuit; means operatively
circuit before any ?uid can be dispensed.
6. In ?uid dispensing apparatus including an
electric motor circuit, indicator and setback mech
anism for the latter, and a movable support for 15
a dispensing hose; a main electric switch included
connecting said hose support with that switch:
an auxiliary switch in said circuit, in series rela
15
tion with said main switch; means operatively
connecting said auxiliary switch with said set , in the motor circuit; means operatively connect
ing said hose support with that switch; an auxili
back'mechanism; and means for operatively con
necting said main switch with said auxiliary. ary switch in said circuit, in series relation with
switch
to open said auxiliary switch by Opening said main switch; and means, including a rotary 20
20
movement of said main switch; whereby, said shaft and cam, operatively connecting said aux
indicator must be set back to zero position ‘to iliary switch with said setback mechanism;
elect closure 01' said auxiliary switch, and both whereby, said indicator must be set back to zero
switches must be closed to energize said motor‘ position, with rotation of said shaft and cam, to
elect closure of said auxiliary switch, and both 25
circuit before any ?uid can be dispensed.
3. In ?uid dispensing apparatus including an switches must be closed to energize said motor
before any ?uid can be dispensed.
electric motor circuit, indicator and setback circuit
7. _In ?uid dispensing apparatus including an
mechanism for the latter, and a movable support
electric motor circuit, indicator and setback
for a dispensing hose; a main electric switch in
mechanism for the latter, including a rotary ~
cluded
in
the
motor
circuit;
means’
operatively
30
connecting said hose support with that switch; an
auxiliary switch in said circuit, in series relation
with said main switch; means, including a spring
pressed toggle, ior electing snap action of said
auxiliary switch in both its opening and closing
movement; means operatively connecting said
‘auxiliary switch with said setback mechanism;
and means for operatively connecting said main
switch with said auxiliary switch to open said
auxiliary switch by opening movement of said
main switch; whereby, said indicator must be
set back to zero position to elect closure of said
shaft, and a hook lever support for a dispensing
hose; a main electric switch included in the motor
circuit; means operatively connecting said hook
lever with that switch; an auxiliary switch in said
circuit, in series relation with said main switch;
means, including a cam on said shalt, operatively
connecting said auxiliary switch with said setback
mechanism; and means, including a tappet con
nected with said main switch lever, for oper
atively connecting said main switch with said 41)
auxiliary switch to open said auxiliary switch by
opening movement of said main switch; whereby,
said indicator must be set back to zero position
with rotation of said shaft and cam, to elect
closure or said auxiliary switch, and both switches
can be dispensed.
4. In ?uid dispensing apparatus including an must be closed to energize said motor circuit be
any ?uid can be dispensed.
electric motor circuit, indicator and setback fore
8. In ?uid dispensing apparatus including an
mechanism for the latter, and a movable support
i'or'a dispensing hose; a main electric switch in electric motor circuit, indicator and setback
mechanism for the latter, and a hook lever sup
said circuit and including a lever; means opera
50
hose; a main electric switch
tively connecting said hose support with that port for a
in‘said circuit and including a lever;
switch; an auxiliary switch in said circuit, in included
means operatively connecting said hose support
series relation with said main switch and includ
ing a lever; means operatively connecting said with that switch lever; an auxiliary switch in said
auxiliary switch with said setback mechanism; circuit, in series relation with said main switch
a at
and including a lever; means, including a spring
two stationary terminals, and two» movable ter
pressed toggle, tor electing snap action of said
minals iorcontact therewith,in said circuit, said auxiliary
switch lever in both its opening and
movable terminals being respectively carried by
said main switch lever and by said auxiliary closing movement; means, including a rotary
switch lever; whereby, said indicator must be set shaft and cam, operatively connectinglsaid aux
60
back to zero position to elect closure oi said iliary switch lever with said setback mechanism;
auxiliary switch, and both,» switches must be and means for operatively connecting said main
closed to energize said motor circuit before any switch lever with said auxiliary switch lever, in
cluding' a tappet pivoted on said main switch lever,
?uid can be dispensed.
5. In ?uid dispensing apparatus including an to open ‘said auxiliary switch by opening move
auxiliary switch, and both switches must be closed
to energize said motor‘circuit before any ?uid
electric motor circuit, indicator and setback ‘mech
anism for the latter, and a movable support for
a dispensing hose; a main electric switch in said
circuit and including a lever; means operatively
connecting said hose support with that switch;
70 an auxiliary switch in said circuit, in series rela
tion with said main switch and including a lever;
ment of said main switch lever; whereby, said
indicator must be set back to zero position, with
rotation of said shaft and cam, to elect closure
of said auxiliary switch, and both switches must
be closed to energize said motor circuit before any
?uid can be dispensed.
CORNELIUS A. DmIilONE.
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