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Патент USA US2124551

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July 2'6,‘ 1938-
H. 1.1 IFREIDMAN ErlAL
LIQUID SPRAYING DEVICE
2,124,551
“‘
Filed March 4, 1935'
HENRY L.FR|EDMAN
Bu
Ismaentors
MAX POLLOCK
Q
‘
attornegs
Patented July 26, 1938
2,124,551
UNHTED' STATES PATENT OFFICE
2,124,551
LIQUID SPRAYING DEVICE
Henry L. Friedman, East Cleveland, and Max
Pollock, Cleveland, Ohio; said Pollock assignor
to William J. Wesseler, East Cleveland, Ohio
Application March 4, 1935, Serial No. 9,182
7 Claims.
This invention, as indicated, relates to a liquid
spraying device. More particularly, it comprises
a structure providing means for spraying liquid
over extended areas especially where ‘water pres
sures are low and where other types of devices
cannot be used effectively.
The principal object of the present invention is
to provide a structure of few parts and simple
and economical to manufacture and assemble,
10 and of large area of effectiveness.
Another object of the invention is to combine
with a structure providing hydraulic pressure be~
low a plurality of vori?ces together with air pres
sure, means for maintaining and supplementing
' the normal hydraulic pressure of the device.
A further object of the invention is ‘to provide
a combined air pressure and hydraulic pressure
device wherein the liquid in a reservoir rises to
a point substantially above the point 'of dis
charge of the fluid, and in addition may be sub
jected to the action of an air cushion to control
ciples of the invention;
Figure 10 is a perspective View, cut away in
part, showing the pulsating vane mechanism;
and
>
Figure 11 is a fragmentary detail view show~
ing the speed regulating device for the pulsating
vane.
The invention as illustrated in the drawing
may embody a number of different forms, all 10'
acting under one general principle, but having
different structural characteristics and produc
ing somewhat different effects in use.
As shown more particularly in Figures 1 and 2,
one type of construction embodying the prin
ciples of the invention may comprise a casing
of substantially» semi-spherical shape, the cas
ing being formed of- a ‘circular base I having a
marginal ?ange 2 extending upwardly, and hav
ing a semi-spherical top member 3 engaged with
in said ?ange' and secured thereto in liquid-tight
the ?ow of liquid.
Another object of the invention is to intro
duce a jet controlling effect which will increase
relation. Centrally of the under side of the upper
member a cylindrical member '4 is provided, the
the range of action of the device.
soldering or the like to the upper inner wall of
the upper member, and the open lower end 5
being spaced a slight distance from the base
member. The cylindrical member’ 4, is thus
adapted to provide an air cushioning chamber
when the remainder of the casing is ?lled with
'
Other and further objects of the invention vwill
appear in the course of the following description.
To the accomplishment of the foregoing ‘and
related ends, said invention, then, consists of
the means hereinafter fully described and par
ticularly pointed out in the claims, the annexed’
drawing and the following description setting
forth in detail certain structures embodying the
invention, such disclosed means constituting,
however, but several of various ‘forms iii-which
the principle of the invention may be used.
In said annexed drawing:
Figure 1 is a central vertical sectional view
of one type of structure embodying the principles
40 of the invention;
Figure 2 is a top plan view of the structure‘
shown in Figure 1;
Figure 3 is a view similar to Figure 1, showing
a modi?ed form of construction;
Figure 4 is a top plan view of a multiple unit
45
device with the units substantially similar to
those shown in Figure 1;
Figure 5 is a front elevation partly in section,
with the sections taken along the line 5—5,
shown in Figure 4;
Figures 6, '7 and 8 are each central vertical
sectional views illustrating different modi?ed
forms of construction embodying the principles
of the invention;
55
(Cl. 299-56)
?ed form of multiple unit embodying the prin
'
Figure 9 is a central, vertical ‘section of a modi-w
upper end of said member being secured by
liquid;
The liquid supply is provided through an inlet
terminal 6 secured to the upper member adja
cent the base member of the casing. A screw
threaded coupling member 1 of conventional
form is supported upon the outer end of the inlet
member in order to permit the 'attachmentvof a
garden hose or like device to the structure’ at
such point.
.
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The semi-spherical upper member 3 is, prefer
40
ably provided with very small perforations 8,
preferably distributed along radial lines about
the circumference of the upper member except
adjacent its central and lower portions which are
free of perforations.
'
.45
The device shown in Figures 1 and 2 when con
nected with a liquid supply having low pressure '
will have a large radius of action for the jets
emerging through the apertures B for the reason
that such apertures collectively are of substan
tially less area than the aperture of the inlet
member 6 and thus the full liquid pressure of
the line will be imposed upon each’ of the jets,
issuing through the smallv perforations; The
cylindrical member 4v will serve to capture air
55
2
2,124,551
within ‘its upper portion 9 when the casing is
obstruct the free ?ow of liquid through the inlet
?lled and this air cushion will serve to maintain
passageway and thereafter open to a position of
substantial uniformity of the jets- even though
full ?ow and subsequently again reduce the ?ow,
there may be minor ?uctuations from time’ to
In the form of construction shown in Figure 3,
so that intermittent pressure effects will be ob
tained. The device in detail comprises a casing
44 provided at one end with a coupling‘member
all the parts are similar to those shown in Figures
1 and 2, with the exception of the member pro
45 and at its opposite end with a connection with
the inlet tube 4|. A substantially Y-shaped vane
time in the pressure of the supply line. '
41 is provided within the casing which 'is of rec
viding the air chamber, which, in the form shown
10 in Figure 3, is not a’ cylindrical member but an
The Y-shaped member l0
tangular cross-section.
integrally formed inverted cup-shaped member
has a transverse pivot member 48 at a central
' || having a base member |2 conforming to the
position and such pivot member passes through a
contour of the‘ semi-spherical upper wall of the packing gland 49 and terminates in a diskv 5| on
chamber, and having its side walls |3 tapering ‘ the upper side of the casing. A retarding device
15 downwardly and inwardly to an open neck por
in the form of a spring ?nger 52 is secured at its
tion M of less width than the width of the bot
opposite end 53 to the upper side of the casing
tom of said chamber. 'The member || may be and is provided with a tension adjusting mem
readily attached to the under face of’the upper
member of the casing by soldering or sweating the
ber 54' having its shank extending through an 7
each substantially of the shape shown in Figure
l, but having a‘somewhat different distribution
In the construction shown in Figure "7, the~
chamber is substantially of the shape shownin‘
Figure 1,‘ but the air chamber device is formed
by‘means of a cylindrical section of pipe GI, hav
ing a screw-threaded central portion 62 engaged 30
through a central aperture 63 in the upper casing
aperture in said spring and having a screw
20 same into secure engagement, and due to its
threaded lower end 55 engaged in a screw
shape will retain the air cushioning in operative " threaded recess 56 in the upper casing'wall,
relation to the fluid even though the member is whereby any desired tension may be placedrupon
somewhat inclined from its normal position.
the spring ?nger, thus creating a predetermined
The structure shown in Figures 4 and 5 pro:
amount of friction upon the terminal 5| of the
25. vides for multiple discharge unitsg|5, l6 and II, pivot member of the movable vane.
of the discharge apertures l8 on the upper mem-.
ber, which cover three fourths of the central cir
cumferential area of the end members I5. and I‘!
and cover opposite lateral quadrants of the cen-.
tral member IS. The central member i6 is pro 7 member 64. The pipe l5 |'. is closed at its upper end
vided with lateral couplings 2|, 22, respectively, by means of. a cap‘ 55‘ screw-threadedly engaged
which are ‘connected by means of short sections
thereover. V The devicedi?e'rs' from'that shown in
of hose or pipe 23, 24, with the couplings 25, 26 ' Figure 1 .in- that the air. cushion is‘ supported
of the respective end members. The main water above a column of liquid at a higher level than
‘ supply is received through the coupling 21: onthe the level of the discharge'aperture throughthe
central member which is connected with the gar
casing.
tributed.
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7
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The structure shown in Figure 8‘is likewise
similar to that shown in Figure 1, the upper cas 40
ing member 1| being formed with an upwardly
den hose or other source ‘of liquid to be dis
40
~
35
.
Under certain conditions it maybe desirable'to
provide an air chamber on the fluid’ reservoir in v projecting socket ‘l2 within'which is'lsecurely en'
an elevated position in the manner shown-in
gaged a cylindrical member 13 which projects "
Figures 6 to 9, inclusive,_ such iair chambers being '
forms illustrated embodies a somewhat different
downwardly toward the base member, its open
lower end 14 being spaced therefrom any desired
distance. The cylindrical member 13 may be
screw-threadedly engaged within'the central sec;
tion I? of the upper member ‘or may be soldered
or. sweated into permanently secured position
structural
within the same.
45 adapted to contain liquid at a level somewhat
' above the level of the discharge apertures of the
device a and having. an air cushioning member,
above the. elevated liquid column.- Each of the
50
I55
combination;
J:
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"
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The device shown in Figure 6 comprises a cas
,
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50
In the form of construction shown 'in Figure 9,
a series of units having vsubstantially'the struc
tural characteristics of the device shownin Fig
ing of substantially the shapeof that shown'in
Figure 1, having a base plate 3|, an‘upper semi
spherical member 32 provided with’apertures 33
around its mid-circumferential area, and provided
ure 6, is provided. 7 In such device a'single el0n-'
gated conduit 8| is provided, connected at one
centrally with a screw-threaded opening 34 with-V ’ end 82 with a source of fluid supply and having a'
in which’ is engaged-the screw-threaded shankr35
series of upstanding discharge "members 83 posi
tioned centrally beneath inverted bulb shaped air
of artubular member open at 'its‘lowerj end'36 and '
having an enlarged bulb shaped closed upper end ‘ cushioning ~members" 84 which: are engaged
7 through apertures 85 centrally of‘ the walls of "the 60
upper members 86 of the respective casings; The
- ‘any predetermined position of adjustment. The [air cushioning members may be adjustable in the
60 to provide. an air chamber. IA lock nut 38 serves
to hold'the adjustable air cushioningfmember in
liquid supply is "received through a tube 4| having
manner shown-in Figure 6 'or may be'perma- r
an upwardly turned innerend 42 engaged cene 'nently secured in predetermined.relation'to the
casing as shown in Figure 9. The discharge per
{trally in alinement with the adjustable air'cush
as"
forations are preferably positioned in’ the manner’,
a slight'kdegreep The liquid supply may be di
similar to those ‘shown in Figure 4, and the total
rectly connected with the inlet tube 4| ,or said 7' collective ‘area of the discharge perforations is of
tube may have interposed‘between its'liquid sup
less extent than the area of the inlet connection;
ply connection 43 and its discharge end, a devicev If desired, a pulsating member ‘suchas shown in 70
for creating pulsating effects in the liquid supply ‘ Figures 10 and 11 may be applied to the free end
' ion member and preferably entering the same to
stream.
">
"
The device for creating such pulsating effects’
7
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~may take, various forms, but the structure shown 7
175
in Figures 10 "and ll will serve-'to‘imo'mentarily
82‘of the conduitin advance of‘its connection to‘
r the source of liquid‘ supply.
.
'_
e
" _v i
The different forms of structure shown are; in-.
tended to be merely illustrative and not exhaus
j
3
2,124,551
tive of all the forms of such devices which may
be provided within the scope of the claims of the
application. The device, when used as a lawn
sprinkler, will exhibit a wide range of coverage
and the ?ow will be maintained substantially
uniform owing to the air cushioning e?ect of the
air chamber within the device. Where, however,
the supply line is provided with a device to cause
pulsating or intermittent ?ow of ?uid into the
10 pressure chamber, the discharge of the device
will be a pulsating effect and will have a very
wide range of action during the maximum pres
sure conditions developed by the hydraulic ram
effect induced through the intermittent ?ow.
15
Other modes of applying the principle of our
invention may be employed instead of those
explained, change being made as regards the
structure herein disclosed, provided the means
stated by any of the following claims or the
20 equivalent of. such stated means be employed.
We therefore particularly point out and dis
tinctly claim as our invention:
1. An apparatus of the character described
having in combination, a substantially closed
chamber having an inlet passageway connected
with a source of liquid under pressure and having
a series of discharge ori?ces in at least one wall
thereof, the ori?ces being of less area collectively
than the area of the inlet passageway, and a
vertically positioned tube having a closed top
and an open lower end in spaced relation to the
bottom of said chamber and providing air cush~
ioning means for the liquid within the chamber
located substantially centrally of said chamber.
2. An apparatus of the character described
having in combination, a substantially closed
chamber having a ?at bottom and an upper area
of substantially semi-spherical contour, an elon
gated hollow member open at its lower end and
closed at its upper end and engaged in liquid
tight relation through the upper portion of said
chamber and having its open lower end in spaced
relation to the bottom of said chamber, an inlet
opening adjacent the lower portion of said cham
45 ber, andva plurality of discharge ori?ces in the
upper portion of said chamber, said ori?ces be
ing collectively of less area than the area of the
inlet opening.
,
3. An apparatus of the character described hav
50 ing in combination, a substantially closed cham
ber having a ?at bottom and an upper area of sub
stantially semi-spherical contour, an elongated
hollow member open at its lower end and closed 7
at its upper end and engaged vertically in liquid
55 tight relation through the upper portion of said
chamber and having its open lower end in spaced
relation to the bottom of said chamber, means
for adjusting the vertical position of said hol
low member, an inlet opening adjacent the lower
60 portion of said chamber, and a plurality of dis
charge ori?ces in the upper portion of said cham
ber, said ori?ces being collectively of less area
than the area of the inlet opening.
4. An apparatus of the character described hav
65 ing in combination, a substantially closed cham
ber having a ?at bottom and an upper area of sub
stantially semi-spherical contour, an elongated
hollow member open at its lower end and closed
at its upper end and engaged vertically in liquid
tight relation through the upper portion of said
chamber and having its open lower end in spaced
relation to the bottom of said chamber, means
for adjusting the vertical position of said hol
low member, means for locking said member in
adjusted position, an inlet opening adjacent the
lower portion of said chamber, and a plurality of
discharge ori?ces in the upper portion of said
chamber, said ori?ces being collectively of less 1O
area than the area of the inlet opening.
5. An apparatus of the character‘ described
having in ‘combination, a substantially closed
chamber having a ?at bottom and an upper area
of substantially semi-spherical contour, an elon 15
gated hollow member open at its lower end and
closed at its upper end and engaged in liquid
tight relation through the upper portion of said
chamber and having its open lower end in spaced
relation to the bottom of said chamber, an inlet 20
conduit for liquid ‘extending through the lower
portion of said chamber and terminating in a
vertical discharge nozzle positioned centrally be
neath the lower open end of said hollow member,
and a plurality of discharge ori?ces in the upper 25
portion of said chamber, said ori?ces being col
lectively of less area than the area of the inlet
opening.
>
6. An ap-paratus'of the characterdescribed hav
ing in combination, a substantially closed cham 30
ber having a ?at bottom and an upper area of sub
stantially semi-spherical contour, an elongated
hollow member open at its lower end and closed
at its upper end and engaged vertically in liquid
tight relation through the upper portion of said 35
chamber and having its open lower end in spaced
relation to the bottom of said chamber, means
for adjusting the vertical position of said hollow
member, an inlet conduit for liquid extending
through the lower portion of said chamber and
terminating in a vertical discharge nozzle posi
tioned centrally beneath the lower open end of
said hollow member, and a plurality of discharge
ori?ces in the upper portion of said chamber,
said ori?ces being collectively of less area than
the area of the inlet opening.
.
7. An apparatus of the character described hav- ,
ing in combination, a substantiallyclosed cham
ber having a ?at bottom and an upper area of sub:
stantially semi-spherical contour, an elongated
hollow member open at its lower end and closed
at its upper end and engaged vertically in liquid-
tight relation through the upper portion of said
chamber and having its open lower end in spaced
relation to the bottom of said chamber, means 55
for adjusting the Vertical position of said hollow
member, means for locking said member in ad
justed position, an inlet conduit for liquid extend
ing through the lower portion of said chamber
and terminating in a vertical discharge nozzle 60
positioned centrally beneath the lower open end
of said hollow member, and a plurality of dis
charge ori?ces in the upper portion of ‘said cham
ber, said ori?ces being collectively of less area
than the area of the inlet opening.
HENRY L. FRIEDMAN.
MAX POLLOCK.
'65 a
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