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Патент USA US2106596

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Jan." 25,- 1938.
J. DUFF, JR
‘2,106,595 -
DELIVERY NOZZLE
Filed May 21, 1937
WITNESSES
,
Jbhn
INVENTOR
'
Jr.
BY
_ ATToRNEg 5
Patented. Jan. 25, 1938 I
* 2,106,596
U'NlT-EDSTATES PATENT OFFICE I
DELIVERY NOZZLE
John Duff, In, New Bedford, Mass.
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’
Application May 21, 1931, ‘Serial No.‘ 143,957
(01. 226-127)
.
5 Claims.
This invention relates to delivery nozzles and
more speci?cally to an automatic shut-oil! noz
zle which is manually controlled to ‘open the
. valve of the nozzle and automatically controlled
5 to cause the valve to close or shut oil when the
tank is ?lled and the liquid backs up in the de
livery line.
I
_
-
The invention embodies many novel features
i0 and at its-free end movable in the slot 25 and
adapted not only to move longitudinally of the
slot, but also to have a lateral movement of the
slot so asv to engage any of the series of teeth
26. - This lever 21, near its pivotal end, is pro
vided with a relatively ?at abutment 29 against
which the lower end of the valve stem i8 bears
so that when the free end or the lever 21 is moved
upwardly and positioned over any of the teeth
25, the valve i‘! will be moved’to open position
of construction and combinations and arrange
a U ments of parts, all of which will be more fully
hereinafter described and pointed out in the I as shown in Fig. l of the drawing.
‘claims.
,
A cylinder 30 is secured to the casing I0 and
- In the accompanying drawing-_‘
is in open communication with the outlet end of
_
Fig. _1 is a viewpartly'in side elevation and the casing through the medium of a short nip
partly ‘in section illustrating my improved de
ple 3| located at one side and adjacent the closed
livery nozzle, showing the _valve in open posi
end of the cylinder. In this cylinder 30 a plung
tion.‘
er 32 is mounted and is connected‘ by -a rod 33
Fig. 2 is an inverted sectional plan view taken with a wedge 34. The wedge 34 is located ad
mainly on the staggered line 2-2 of Fig. 1, with jacent the free end of the lever 21 and against
2 portions shown in section; and
one side of said lever, and is formed with a longi
Fig. 3 is an end view of Fig. l.
tudinal slbt 36 through which headed pins or
i0 represents the casing of my improved de- 4 screws 31 are projected, and ?xedly secured in
livery nozzle which is divided by a partition‘ H the lever so as to permit a longitudinal move
.70
_ into an inlet chamber l2 and an outlet chamber
ment of the wedge “34 of the lever.
Attention is >
l3. This inlet chamber or inlet endof-chamber 'particularly called to the shape of the forward‘
H is adapted to be operatively connected with or free end of, the wedge 34 where it will be '
the reservoir or tank of a delivery truck and the noted, particularly by reference to Figs. 2 and 3
of the drawinghthat this member 34 is. tapered
outlet end of_ the chamber I3 is operatively con
or beveled both longitudinally and transversely
3'0. nected by a pipe H with the inlet line of a house
hold tank. The partition ll above referred-to is vso that it constitutes a wedge both longitudinally 30 _
provided with an opening IS, the walls of which and transversely. .
The operation of the nozzle is as follows: As-.
constitute a valve seat It normally engaged by a ,
valve I‘! to close the opening. This valve H is suming that the respective ends of the nozzle are.
operatively connected to the delivery tank and ‘
60Gr ?xed to a stem i8 extending above and below the I
valve, the upper end 01' the stem moving in a
the household tank, the operator manually ele
vates the free end of the lever21, causing the
threaded opening 2| in the casing ID. A 0011. free end of the lever to engage over one of the
spring 22 is located around the stem i8 and guide teeth 23. This movement of the lever 21 opens the valve I71 and holds the valve in open posi-_
inO sleeve l9 and interposed between the cap nut 20
and the valve ii to normallyhold- the valve on tion allowing the household tank to be ?lled.
' If, for‘ any reason, the household‘ tank is ?lled
its seat and in closed position. The lower end
or the stem l8 extends through a stu?ing box 23 _ _ and, the liquid backs up in the delivery line it
and in the outlet end of the casing l0, this liquid
and Irarojects
the desired distance, below the cas'
will ?ow into the cylinder 30. The pressure thus
ing
.
24 represents a somewhat angular shaped bar built up will cause the plunger 32 to: move longi
having its ends integral or otherwise ?xed to the tudinally in the cylinder and through the medi
casing l0 and located below the casing. One end um of the connecting rod v33 willforce the wedge
of this bar 24 which is relatively straight and is 34 forwardly, causing the same to engage the
50 at an approximate right angle to the casing 10 wall 0! the slotted- member .24 and between the _
is formed with a longitudinal slot 25, the wall at same and the free end of the lever 21, forcing ‘
one side of this slot 25.being provided with a. this free end of the lever 21 laterally so as to
force it off the tooth 26, and when inthis po
series of inwardly’ projecting teeth 26.
27 represents a hand-operated lever pivotally sition the free end of the lever‘ can .move down
guide sleeve l9~ on a cap nut 20 screwedinto a
connected at one end to a web 28 on‘ the casing ’
I
wardly permittingthe valve 'l'l to automatically
close.
‘as
2
8,106,696
.7
The reason why the wedge-shaped member a
engagement with the teeth and allow said valve to
‘ at its free end is wedge shaped both longitudi
nally and transversely is to permit and cause
close, said ?xed member constituting a slotted
bar having a series of teeth projecting inwardly
from one wall of the slot and said slot of a width
to permit both longitudinal and lateral movement
the wedge together with the hand lever 21 to
5 ride i'reely off the tooth 28 when the wedge is
moved forwardly.
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,
of the free end of the lever therein.
~
It is to be understood of course that my im
proved delivery nozzle constitutes a part 01' a
line connecting a delivery truck with a house
10 ‘tank and the line is connected ?xedly to the in
let 'oi the house tank so that when the liquid in ‘
the tank ?lls and would otherwise over?ow it
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3. A delivery nozzle comprising a casing, a par
tition in the casing having an opening therein,
a cap nut on the casing, a valve in the casing
normally closing the opening, a stem on the valve 10
projecting above and below.the valve, said cap
nut having a guide sleeve receiving the upper end
passes up the line I‘! into the cylinder iii and ' of the stem, a spring between the cap nut and
operates the plunger to cause the valve to close. the valve normallyholding the latter in closed
15
While I have illustrated and described what I position, a stuiiing box in the ‘lower portion of 15
the casing through which the valve stem projects,
believe to be a preferred embodiment of my-in
vention, it is obvious that various slight changes a hand-operated lever pivotally connected to the
casing and engaging the lower end of the stem,
‘ may be made with regard to the form and ar
rangement of parts without departing from my 9. toothed member engaged by the free end of the
lever to hold the latter in position to open the 20
20 invention, and hence I do not limit myself to the
precise details set forth but consider myself at valve, a wedge having sliding movement on the
liberty to make such‘changes and alterations as lever, and ?uid-operated means for moving the
fairly fall within the spirit and scope of the wedge to disengage the lever from a tooth.
. 4. A delivery nozzle comprising a casihg, a par
claims.
tition in the casing having an opening therein,
25
I claim:
'
a cap nut on the casing, a valve in the casing
1. Apparatus oi the character described, in
cluding a casing, a spring-pressed valve in the normally closing the opening, a stem on the valve
casing normally closing the passage therethrough, projecting above and below the valve, said cap
a stem on the valve projecting outside or the nut having a guide sleeve receiving the upper
30 casing, a manually movable pivoted lever adapted end of the stem, a spring between the cap nut 30
to engage the stem and open the valve when the and the valve normally holding the latter in
lever is moved in one direction, a ?xed member closed position, a stuiling box in the lower portion
having a series of teeth thereon adapted to be of the casing through which the valve stem pro
engaged by the free end of thelever, a vwedge jects, a hand-operated lever pivotally connected
35 having sliding engagement with the lever- at its to‘ the casing and engaging the lower end'of the
free end, a cylinder in open communication with stem, ,a toothed member engaged by the free end _
the outlet end of the casing, a plunger in the of the lever to hold the latter _in position to open
cylinder, and a rod operatively connecting the the valve, a wedge having sliding movement on
plunger and the wedge so that when the plunger ‘the lever, and ?uid-operated means for moving
40
40 is caused to move by the pressure or the liquid the wedge to disengageigthe lever from a tooth.
5. Apparatus of thei character described, in
in the cylinder the wedge will engage the ?xed
member to force the other end‘ of the lever out of cluding a casing, a spring-pressed valve in the
engagement with the teeth and allow said valve casing normally closing the passage therethrough,
to close.
'
.
'
.
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'
45 _ 2. Apparatus of the character described, in
a stem on the valve projecting outside of ' the
casing, a manually movable pivoted lever adapted 45
cluding a' casing, a spring-pressed valve in the
casing normally closing the passage therethrough,
to engage the stem and open the valve when the
lever is moved in‘ one direction, a ?xed member
a stem on the valve projecting outside of the cas- .
having a series of teeth thereon adapted to be
engaged, by the free end of the lever, a wedge
having sliding engagement with the lever at its so
free end, a cylinder in open communication with
the outlet end of the‘ casing, a plunger in the
cylinder, and a rod operatively connecting the
ing, a manually movable pivoted lever adapted
50 to engage the stem and open the valve when the
lever is moved in one direction, a ?xed member
having a series of teeth thereon. adapted to be
engaged by the free end of the lever, a wedge
having sliding engagement with the lever at its - plunger and wedge so that when the plunger is‘
caused to move by the pressure of the liquid in
55 free end, a cylinder in open communication with.
a the outlet end of the casing, a plunger in the the cylinder the wedge will engage the ?xed mem
cylinder, and a rod operatively connecting the ber to force the other end of the lever out of
plunger and the wedge so that when the plunger engagement with the teeth and allow said valve to
is caused to move by the pressure of the liquid in close, said wedge at its tree end beveled both lon
gitudinally and transversely. _
the cylinder the wedge will engage the ?xed mem
JOHN DUFF, Ja.
her to force ‘the other end of the lever out of
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