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Патент USA US2113853

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April 12, 1938.
G. B. NICHOLSON
v
2,113,853
FLUID DISPENSING NOZZLE VALVE
Filed Feb. 23, 1957
2 Sheets-Sheet l
INVENTORQ
' A _TTORNEYS.
April 12, 1938. '
2,1 13,853
6.} B. NICHOLSON
FLUID ~ DISPENS ING NOZZLE VALVE
Filed Feb. 25, 19:57
2 Sheets-Sheet 2
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INVENTOR.
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ATTORNEYS
Patented Apr. 12, 1,938 '
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FLUID DIS‘PENSING NozzLEvALvE
George B. Nicholson, Erie,’ Pa.
‘
Application February 23, 1937,v Serial No. 127,146
(01. 1379139)
4 Claims.
provements in nozzle valves for gasoline dispens
posed around the valve stem 22 andheld in posi—'
tion by a knurled'nut 21, to project therebeneath.
ing pumps or the llkey‘étl'ld it is among the ob
jects' thereof to provide a nozzle with a manually
The valve Z‘I is accessible by the removal of a cap
28 having an annular recess 23 for receiving a
‘ This invention relates to new anduseful im
operated valve construction which shall be espe
coil spring 3!) which abuts-the upper part of the U
cially suited for controlling the ?ow of the ?uid
valve 2I to- normally-bias it downwardly against
‘from the nozzle end when caution is required to’
prevent over?ow _v of the receiving container or
tank.'
,
‘,
1
"
,
‘.Another object of ‘the invention is'the provision
‘of a Valve structure for ?uid dispensing nozzles
its
seal
3I.
"
‘
‘
y
p
The operating lever I3 'is slotted at 32 to re-.
ceive a lever 33 which is'pivoted to the operating “
lever at 3'4, ‘lever 33- being provided with a con- v10
'
tact or wearing plate 35.
'
TheV lever
33 is fur- ‘
5 which shallhavea variable leverage acting upon ther provided with a notch or slot 36 which co
the control valve with a greater leverage for operateswitha pin 31 extending transversely. of
slow ?ow operations than at ,full' or maximum ‘the. slot 32 oflthe operating lever l9. Fig. 1 il-
_
'lustrates the normal position of the operating '‘
Theserand other objects of the invention will I lever I3 andfwhat may be termed the cam lever
become more "apparent, from a consideration of 33, the latter abuttingtagainst ‘the recessed por
the accompanying drawings constituting a part tion or groove 38 of'the guard, in which the oper
flow.
/
‘
-
hereof in which like reference characters desig
7 20'
nate like parts and in which:
,
,
Fig. l is a view partially in section and partial
ly in side elevation of a ?uid dispensing nozzle
and valve embodying the principles of this in
vention; and
'
Fig. 2 a vertical cross-sectional view of the
valve and control lever thereof.
With reference to the several ?gures of the
drawings, the structure therein illustrated com
ating lever rests with its tip in the bottom of the '
groove 38. In the position of the levers‘ as shown 20
in Fig. 1, both valves 9 and 2| are in their nor
mally closed position, so heldby their respective
coil springs I I and 30, and valve stem 22 extends
the maximum distance downwardly from the
knurled bushing 21. To start flow of ?uid
through the nozzle end Hi, the operator grips the
valve by placing the palm of the hand above the
conduit portion I and extending the ?ngers
around and beneath the operating lever I9.
During the initial movement of the latter, the
j prises a conduit portion I having a threaded ?t
3.0 ting 2 for connection witha ?uid delivery hose
conduit. The member I has an enlarged portion cam lever 33 is raised at its pivot point 34 and
3 forming a valve chamber generally designated the bottom end or tip of lever 33 resting against
by the reference numeral 4 from which a di
the bottom of groove 38 of guard 16 acts as a ful
vergent flow passage 5 extends with a threaded crum which develops a greater leverage against
?tting'6 for receiving a nipple 1 having a shoul ' the bottom of the valve stem 22 than if the latter
der 8 forming a chamfered valve seat for a valve were directly contacting the main operating lever
. 9 which is mounted in a spider I0 and biased by a
coil spring II to normally engage its seat on
“ 40
shoulder 8. The nipple ‘I is connected by a nipple
I2 to a nozzle I3 having thev usual armored flex
‘ ible nozzle end I4. The conduit casting I is pro
vided with an eyelet I5 to pass over a hook or
I9. This leverage is available only during the
travel of the operating lever within the limits of ,
clearance of the pin 31in the slot 36, and when
pin'3‘I abuts. against the lever 33 ‘in the bottom
of the slot/33, it will lift lever 33 with it for the
remainder of the movement of the operating lever
lever arm of gasoline dispensing pumps as is’
I9 until the latter abuts the conduit portion I ..
common practice.
As shown in the drawings, the leverage of the
,
The bottom portion of the conduit casting I
is provided with a guard Iii riveted to the conduit
frame at I‘! and I8 and a valve operating lever
I 9 is pivoted to a lug portion of the casting I
at 21].
The main operating valve of the dispensing
nozzle comprises a valve 2| mounted on a stem
22 disposed through an opening 23 in the bottom
of the enlarged portion 3, the latter being coun~
terbored or recessed at 24 to receive a packing
55 gland 25 which is compacted by a bushing 26 dis
operating lever I9 is about four to one with the
bottom of valve stem 22‘ as the fulcrum point.
During the initial movement of the operating
lever, however, the leverage is multiplied through
the cam lever 33 to obtain about 30% more lever
age, thus clearly minimizing the force required 50
to operate the main lever I9.
By thus multiplying the leverage for moving
the valve stem 22 during its initial opening of
the main control valve 2|, the operator with very
little eifort can obtain more sensitive control ‘of
2,113,853
2
the valve 2|, which is highly desirable to prevent
overflow of the receiving tank when it is nearly
full.
It is evident that when the main valve 2| is
liited from its seat 3|, the force of the ?uid pass
ing through conduit I and through the valve
chamber 4 will unseat valve 9 and permit ?uid
flow through the dispensing nozzle 14.
It is evident from the foregoing description of
10 this invention that nozzle valves 'for ?uid dis
pensing pumps or pressure lines made in accord
ance therewith facilitate the accurate and safe
stern, means on the operating lever for engaging
the second named lever to interlock said levers in
response to movement of the operating lever and
a stationary abutment for said secondary lever
constituting a fulcrum for the free end of said
lever during partial movement of the operating
lever.
I
~
3. In a fluid dispensing nozzle valve, an oper
ating valve having a valve stem projecting from
the valve chamber, an operating lever for actuat 10
ing said stem, a second lever pivoted to said op
erating lever for engaging the end of the valve
dispensing of ?uids, particularly gasoline around , stein in response to movement of the operating
?lling stations where it is undesirable and dan
15 gerous to permit any over?ow.
'
lever, means on the operating lever coacting with
*th'e'ysecondi named lever for interlocking said 15
Although one embodiment of the invention has , levers during, partial movement of the operating
been herein illustrated and described, it will be lever and aistationary abutment for said second
apparent to those skilled in the art that various ' ,ary leverconstituting a fulcrum for the free end
modi?cations may be made in the details of con- , _ oi saidlever during partial movement of the op
20 struction Without departing from the principles ' erating lever.
herein set forth.
I claim:
.
~
1. In a fluid dispensing nozzle valve, an oper
ating valve having a valve stem projecting from
25 the valve chamber, an operating lever for actuat
ing said stem, a secondary lever pivoted at one
, end to said operating lever for engaging said stem,
and a stationary abutment for said secondary
lever constituting a fulcrum for the free end of
30 said lever during partial movement of the operat
'
ing lever.
2. In a ?uid dispensing nozzle valve, an oper
ating valve having a valve stem projecting from
the valve chamber, an operating lever for actuat
35 ing said stem, said lever being slotted in the
region of the valve stem, a second lever disposed
in the slot of the operating lever and being piv
oted thereto for engaging the end of the valve
v,4. In a ?uid dispensing nozzle valve, an operat
ing valve having a valve stem projecting from the
valve chamber, .an operating lever for actuating
said stem, said lever having a slotted opening be
neath the valve stem, a second lever disposed in 25
said opening and pivoted to the operating lever,
a stationary abutment for said second named
lever constituting a fulcrum for the free end of
said lever, said second named lever having a slot
for engagement by a pin provided in the operating 30
lever whereby during partial travel of the latter
the second named lever is fulcrumed at one end
'to multiply the leverage acting upon the valve
stem and during the remainder of its movement
interlocked with the operating lever to displace 35
the valve stem.
1
‘GEORGE B. NICHOLSON.
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