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Патент USA US2134347

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Oct. 25, 1938.
w_ B_ THOMPSON
PLAY PIPE CONSTRUCTION
Filed Aug. 28', 1957
_ I
2,134,347
‘2,134,347
Patented Oct. 25, 1938
, ‘UNITED STATES I ‘PATENT orrics
2,134,347
PLAY PVIPE CONSTRUCTION
Wayne B.’ Thompson, Winchester, Mass, assignor
to Spray 7 Engineering Company, Somerville,
Mass, a corporation of Massachusetts
'
Application‘ August 28, 1937, Serial No. 161,460,
9 Claims. (01. 299,412)
The present invention relates to apparatus for
use in extinguishing ?res. More particularly, the
present invention relates to apparatus for use in
extinguishing ?res on the surface of in?ammable
liquids, such as ‘oil, which are immiscible with
water.
'
_
coupled to the hose. The axis of ‘discharge ‘from
the nozzle is acontinuation of the longitudinal
axis of the play pipe, and the ‘hose coupling ‘may
or may not have associated therewith handles
'
Such ?res present an extinguishing problem
not found in the case of burning non-liquid ma
which aid the men in" dragging the hose along-the,
terials. Whereas with the latter the application
hands grasping the pipe forwardly from its base.
Play pipe constructions differfrom standard ?re
nozzles in that the latter are used from a dis
of more or less solid streams of water is effective,
in the case of oil ?res such streams are not effec
tive and serve chie?y to spread the ?re.‘ But
while such application of water is not effective
to extinguish an oil ?re, it by no means follows
that an oil ?re can not be extinguished by the
use of water. The explanation lies in the man
ner in which the water is applied, and ‘consider
able success has been attained in extinguishing
oil ?res by directing upon them aspray of highly
20 atomized or ?nely divided water particles, some
ground and in supporting the pipe‘, their other ‘
tance-the long'carry ‘of the emitting solid stream
taking a more or less arcuate course, while the
former, lacking that carry for the spray, are '
necessarily used rather close up, the wide, spread 15
of the spray forming a‘ shield which protects
the men fromlthe heat.v
»
I
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-
"
_But'while play pipe‘ constructions are 'im-7
prove'ments over stationary and movably‘mount
ed nozzles, they still exhibit the difficulty of being 20
thing quite different from a solid stream or jet
unwieldy and awkward to handle and are not
of water. The principle of extinguishing by this
adapted for quick or abrupt changes in the direc
tion of the spray‘ to effect the ready and con
tinuous ?a'me chasing necessary for the most
efficient and ‘rapid'operation'. “They likewise are 25
unsuited for directing'a spray downwardly over
the edge of a tank, or aroundl‘obstacles such as
method is that the ?ames turn the water‘ into
steam, this being eifectedvery quickly because
the heat acts-on minute water particles, and then
the steam acts as a blanket over the ?re, putting
it out by excluding the air necessary to support
combustion. In the performance of this process
the surface of the oil is not disturbed by the
30 spray, and thus there is none of that spattering »
or splashing or churning of the burning oil which,
as is well known, serves to scatter and spread it.
Because of the nature of an oil ?re, stationary
spray-forming apparatus is not suitableto use.
35 The ?ames must be chased, as it were, as they
recede over the surface of the oil, thereby ren
dering‘ ineffective apparatus mounted to dis
charge at only a given area. For the same‘reason
apparatus mounted for movement is'not satis
40 factory either; for the great pressure of the water
machinery in a ship' engine room, for one ex
ample; The w'eight’and length of- the play‘pipe
‘construction are factors in this, of course, but 30
thereal cause of the difficulty of suchymanipu
lationlies in ‘the fact that the constructions are not adapted to counteract and offset thetend- ' '
ency which the great pressure of the rushing wa
ter hasto make'th’e nozzleand adjacent'h'ose 35
portion assume ‘the straight line or‘ axialidirec
tion of the water rushing from theimain body. of
the hose and to resist: any effort to change the
direction of the. discharge so that the spray can
be played on different ‘surface areas.
‘
,
at the nozzle (around 100 pounds» or'more per
square inch) results in great resistance to move
It is the principal object of the'presentJin-'
vention toobviate this difficulty, that is, to pro
ment of the apparatus, and quite independently
of any pressure resistance, the ?eld of play is at
vide a . spray-forming play pipe construction
45 best limited, a situation that should‘ not exist
when it comes to extinguishing a burning sub
stance that may'?owfreely.
so
comprises a nozzle mounted'on one end of a pipe,
called 'a play pipe, the other end of ‘ which is
'
As a consequence it is the practice to use water
spray apparatus of the manually'operated type,
and because of the great water pressure necessary
for an effective spray, the apparatus is commonly
handled by two men at the nozzle, or discharge
end. It should also be pointed out that the dis
charge end of the apparatus does not comprise
55 merely an elongated nozzle coupled to a hose, but
40
which may be handled with ease and speed ‘to
cause the. sprayto take any desired direction, as 45
is necessary for the‘most rapid extinguishing'of
?re on the surface of ‘a body‘ or- pool of oil.
To the accomplishment of this object and such,
others as may hereinafter appear, the present
invention resides in certain' devices, construc
tions; and combinations of parts, all fully de
scribed in the following speci?cations and then
pointed out inthe appended claims, possessing
advantages and. merits which will be appreciated
by thoseskilledinthe art;
7.
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55
2
2,134,347
The various features of the present invention
Vwill be readily understood from inspection of the
accompanying drawing, illustrating the best em
bodiment of the present invention now known to
the inventor, in which
Figure 1 is a view of the apparatus in front
elevation;
10
Fig. 2 is a view in left side elevation;
Fig. 3 is a view in plan;
Fig. 4 is a detail view'in sectional elevation
taken along the. line 4-4 of Fig. 2;
the coupling 2| may be augmented by brazing the
sleeve to the pipe 20 as indicated at 26 and by
brazing the coupling 2| to the pipes 20 and 22,
as indicated at 21 and 28, respectively. This con
struction, together with the set screws l9, makes
for a coupling, sleeve, and piping arrangement
that is operatively integral and ?xed against rela
tive movement among its parts. ,
In order to e?ect the desired discharge of
water from the apparatus, the upperend of the
. ., . pipe 22 is provided with a nozzle 29 of the type
Fig. 5 is a detail view in sectional elevation,
similar to Fig. 4, but showing a modi?cation of
adapted to discharge a bushyand full or homo-r
geneous'vcone of spray comprising Water in a
the piping and coupling;
15
_
highly atomized or ?nely divided state—this in
Fig. 6 is a detail view in'sectional elevation contrast to‘the more or less solid stream or jet
taken along the line 6—6 of Fig. 2; and
‘ emitting from ‘standard ?re nozzles. While any
Fig. 7 is a view in sectional elevation of the ' nozzle ‘may be used which is capable of produc
nozzle.
‘
ing the desired spray, it is much preferred that
Referring to the drawing, the construction is ' the nozzle have the general structure and mode
provided with a hosecoupling member Ill (Figs. of operation of that disclosed in the patent to
,1, 2, and 6) which is interiorly threaded at‘ H Aubrey _G.- Eneas, No. 1,101,264,‘ as this nozzle
to receive a male coupling member (not shown)
hasbeen found to be highly effective in the use
attached to a nose, as is well understood. ‘ The
of the illustrated embodiment of the present in
coupling member I0 is provided with a lower re
vention to produce the type. of spray desired for
25 duced cylindrical portion l2 terminating down
wardly at a transverse shoulder |3 which serves
as a rest or stop for a ring l4. At opposite sides
extinguishing oil ?res. While the details of con 25
struction and operation of the Eneas nozzle may
the upper reduced portion I‘! ofthe coupling and
be ascertained from the above-noted patent, it
may be said, with reference to Fig. 7, that the
nozzle comprises a shell or casing 30 within which
is mounted a water guiding member 3| provided 30
with vanes 32 which give a swirl to water enter:
ingthe nozzle and effect the production of swirl
ing streams 33 within a mixing chamber 34. The
extends outwardly over the ring, 'as indicated.
35 The reduced portion I‘! has a smaller diameter
member 3| is also provided with a central axial
passage 35 providing for a central jet of water 36 35
the ring is provided with outwardly extending,
generally U-shaped handles l5 adapted to be
30 grasped when the apparatus is in use. The ring
14 is held on the coupling member ID by a sleeve
IS the lower portion of which is threaded on
than the reduced portion l2, therebyresulting in
which mixes with'the swirling streams 33 within
the formation of a shoulder l8 which serves as an
the mixing chamber. By reason of this con
abutment for the bottom of the sleeve Hi. The. struction, water entering. the nozzle is discharged
internal diameter of the'ring I4 is appreciably as a‘full cone spray of highly divided or atomized
40 greater than the external diameter of the re
duced portion l2, and as indicated in Fig. 6 the
For reasons which will be explained below, the
height of the ring is slightly less than that of’ the axis of discharge from the nozzle 29 is angularly
reduced portion |2. With this construction the disposed tothe longitudinal axis of the piping
ring is free to be rotated on'the coupling member 20-22. This is effected by giving the upper por
45 I0, but the abutments or stops provided by the
tion of the pipe 22 a 45° bend 31 (Figs. 2 and 3),
shoulder I3 and the‘ bottom of the sleeve |6 although it will be appreciated that the ‘same
effectively maintain the ring mounted on the result can be obtained by- providing the base of
coupling. The sleeve is preferably locked against the'nozzle with the bend ‘and by leaving the pipe
rotation on the coupling member,-as by one or 22 entirely straight._
. '
' I
50 more set screws l9, thereby making the members
The'construction is completed by the provision
I0 and I6 anoperative coupling unit.
of a second set of handles‘mounted on the piping.
Threaded into the sleeve. I6 is one end of a To this end; and referring to Figs. 14, the cou
length of pipe 20, the other end of which is pling 2| is provided laterally with oppositely dis
particles
,
.
.
.~
40
>
>
45
50
threaded into the lower portion of ajcoupling 2|. , posed bosses 38 into each of which isthreaded
55 The upper portion of the coupling 2| receives the
threaded lower end of a second and longer length
of pipe 22, preferably of the same diameter as
the length Zlland axiallyaligned therewith so
as to make an eifective‘extension thereof. In
60 order to make the connections between the sleeve
I6 and the pipe 20, and between the coupling 2|
and the pipes 20 and 22, strong and to provide for
support against any tendency- of the piping to
warp or bend at the sleeve and the coupling 2|
65 as the apparatus is moved during use in opposi
tion to the force of the rushing water, the sleeve
is provided with an integral, internally cylindri
cal extension 23 (Fig. 6) which embraces the end
portion of the pipe .20, and the coupling is pro
70 vided with similar integral, internally cylindrical
extensions 24 and 25 (Fig. 4) which embrace the
adjacent end portions of the pipes 20 and 22,
respectively. While the construction as thus de-.
scribed is sturdy, its strength, particularly against
75 any turning of the pipeiends in the sleeve l6 and
one end of a handle 39 so as to always have the 55
same position with respect to. the coupling, in
contrast to the movability of the handles IS. The
handlesv 39 extend outwardly from the coupling 2|
and the piping 20—22, preferably being normal
to a plane passing through the axis of the piping
and the discharge axis'of the nozzle 29. The
handles 39 may be rods as shown, or they may
have an equivalent operative construction, and
they may be provided with rotatable grips or
covers, but the-important point is that so: far as 65
the operation and handling of the apparatus dur
ing spray discharge are concerned, the connection
of the handles proper with'the coupling 2| should
not be a swinging one, so that the handles are
not movable or swingable toward or‘ circum
ferentially of the coupling and the piping during
spray discharge but remain outstanding. The
handles have sui?cient length so that when
grasped the hand is well spaced from the piping,
and the mounting of the handles in’ the bosses 38
70
2,134,847?
3.
may if desired be ?xed in threaded-in position '
31' together with the movement facilityuarisin‘g
by means of brazing 4.0.
from grippingthe handles 39, that the spray can
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A
In the construction described above the piping
has been illustrated as‘ being in two portions, 20
and 22, with the coupling 2|‘ serving to connect
them in axial alignment and alsoservingv tojoin
the handles 33 to the piping. .An alternative
construction in this respect is'shown in Fig. 5,
characterized'by the. fact that instead ofem
ploying two pipe portionsas: 20 and‘ 22, only a
single length 4| of pipe is used, having the over‘
all length of the piping 20-—22 as" joined by the
coupling 2|, and being connected at its lower end
to the hose, coupling member Ill and supporting
the nozzle 29 at its: upper end all in the same
manner as shown in. Figs. 1, 2, and 3.
e
In order to mount the handles 39 on the piping
4 l, a‘ support such as a collar 42 is provided which
has a smooth cylindrical interior adapted to em—
brace the piping 4| and‘ which is maintained- ?xed
in its embracement therewith by means of braz
be. directed downwardly over the edge of; a'tank '
against ?ames immediately adjacent its walls, a
mode of operation impossible with'play pipe con:
structions. in. which :the direction ofsisprayrdis
charge is axialrofthe piping, vByv the ‘same token,
the apparatus; can ‘get around-robstaclesv other
than tank sides, such as around‘. machinery or
between .parts' thereof, for‘ example, in a'much
easier manner than is the. case; with the straight
type‘ of construction mentioned? above, and'as a
matter of fact, the-present inventionma'y be. used
to get at. parts; or places. which a straightlcon»
struction can not reach at‘all.v "The. high e?'i-'
ciency' of the illustrated, embodiment‘ of the pres
ent invention wilixthus be readily appreciated,
, Butwhile the remarks. in the preceding. para--v
graphhave been concernedjwith a general? de—
scription of the. operation and e?ectiveness of
the present invention, there is. a further .oper
ing 43 at its opposite ends. To receive the
threaded ends of the. handles 39-, the coupling 42
ative point of greatwimportance, not brought out
is provided laterally with oppositely disposed
Inusing present play pipe ‘constructions, i. e};
above and‘ impossible withip'resent apparatus.
'
constructions in which the direction of spray dis;
maintained in thebosses 44 by means of brazing ‘charge is. axial of’ therpiping, the sprays'can be
45. As is the case with‘ the coupling 2i as shown played about or over different surface-areas only
in Figs. 1 and 2, the collar 42; is. spaced from both byswingi'ng the‘piping bodily from 'side ‘to side'or
the handles [5 and the nozzle 29,. being nearer up or down»,v the ‘hose coupling portion {being
roughly the pivot areafor these movements-or
30 to the former.
In using either of the illustrated embodiments by moving the. entire'a'pparatus bodily from one
25 bosses 44, and the handles may if. desired be
of the present invention, the coupling member
[0 is connected to a suitable hose construction as
is well understood. Preferably two mensupport
35 and operate the apparatus, one hand of each man
grasping a handle I5 and their other hands.grasp-'
ing the end portions of the handles 39, respec
tively. As this provides for a ?rm gripping of the
apparatus since the handles 39 do not swing, it
40 will be seen that the hose may with ‘minimum
dif?culty be dragged along the ground toward the
locationto, another,‘ The high pressure water
rushing through the‘pi'ping and the hose.‘ results
in‘ considerable: resistance to; ‘these movements},
but asis well known'this resistance canv beoveri
come and. the apparatus~ moved1,-:an'd‘ such/over
coming" is accomplished‘with‘. the-pipe itself being
.gripped by the hands that are notPholdin'g?onto
the base of the piping‘or handles thereat.‘ How
ever,.that?leverage which is sufficient to effect
such movements, i‘. e., which arises from the grip-‘
?re or otherwise moved as occasion requires- By ' ping of‘ the [pipe itself,'is'quite insu?icient to en
able. the men. to rotate" the piping‘ on its longi-'
‘tudinal. axis, and thus this type of :piping move
close proximity to. the ?re while the men stand ment, invcontr'ast to those mentioned above, is
away out of its immediate heat, and‘ further heat quite out of ‘the question. There isv also‘ in;
protection is a?orded‘ by the bushy cone spray volvedtin addition to the rotary movement of
which acts as a shield and as- is well known is the piping, a rotary‘movement of at least the ad
cool because of its atomization. By reason of the jacent hose portion, and with the type of hose
bend‘ 31 the apparatus needv not be held so that necessary to accommodate the high water‘prese
the ‘piping 20--22 or 4| is pointed directly at the sure and to‘ provide av su?icient. volume of'water',
?re area‘ being sprayed, which would generally together with thenature of the piping, such -ro—
be downward as in the case of aburning' pool or tary‘movement is not possible by a mere gripping
reason of the piping 22 or M extending‘ forwardly
of the handles 39, the nozzle may be located in
burning oil on a floor-this manner of holding and
the ease which it involves being in direct con
trast .to the position necessary for piping ‘where
the direction of 'the discharged spray is ‘axial of
the piping. Since the grasping‘ of the handles
39. a?ords a better hold and a relatively great
6.0% movement leverage in contrast to gripping the
of
' Ithe
ampiping
well aware,
manually.
however, that
. I. the occasion for
this. rotary movement never arises with present
play‘ pipe constructions because 'witha direction
of spray discharge that is axialof thepiping,
that discharge direction will always be the same
no matter what the rotative positionbf the pip
piping itself, the apparatus may be conveniently
moved, and the adjacent hose portion moved also,
ing may be. But'this very sameness of direction ,
to cause the discharge to take different direc
in the use of the present‘inv'ention, in that my.
improved construction is ‘such that there can
tions as the. steam blanket'produced over one
65. sprayed area causes the ?ames to recede' to. a
different area. Also by reason of this better grip
brings out by contrast. a highly important point
actually’ be accomplished that rotaryrmovement' 65%
ofthe piping which is out. of thequestion where
ping and leverage the movement of the apparatus the piping itself is gripped and-at the same time
may be speedy, which is much desired and is. in that rotary movement is accompanied by'a change
contrast to the use of present apparatus, for the .in- the direction ofndischarge-this in contrast ~
leverage resulting from gripping the ban esf3'9 to the sameness of direction which would result to
is much more effective. than that from merely
grippingthe piping itself to overcome the resist
ance to movement occasioned by the'high pres
sure rushing water in the piping-and the hose.
with‘ present constructions if a. gripping of . the
It will be further apparent, by reason of: the bend
fromrthe piping 120-422; or .4 l l ‘supplies; for rota.
piping'itself-could accomplish rotative movement
of: the piping and the adjacent hose portion.
The gripping of the handles 38 at points spaced
4
2,134,347
tively moving the piping, the very leveragewhiéh
mere pipe gripping precludes. - Since the cou
pling member ID is free'to’lrotate withintherring
H, as a sort‘ of guide, the handles 39 may be used
to rotate the piping about its longitudinal axis,
thereby effecting a changeiin the direction of the
nozzle discharge because rotative movementv of
the piping causes the nozzle 29 to swing about the
bend 31 as a pivot. . Moreover, in contrast to the
bodily movement and changev of position 'of the
workmen themselves which must take place-in
using present constructions to effect a spray di
rection change that is even as little, as is repre
sented by a 90° swing; for example, of the nozzle
15 29, in using the present invention such a change
of spray direction may be accomplished without
' the. taking of a step by the men and with no
more movement on their part than is necessary
to turn the piping by means of the handles 39.
20 As this mode of ‘operation provides su?icient
turning leverage, it will be seen not only that
the present invention can‘be used in a manner
impossible with present 'constructions‘but also
that a highly desirable speed and ?neness of
25 movement is accomplished in contrast to the
slow and awkward movements which are neces
sitated when the piping can not be rotated manue
ally or the direction of discharge is axial of the
piping. The speed and e?ectiveness of turning
80 the piping so as to chase the ?ames is not con
?ned to spraying generally over the body of oil,
but is also‘ present when spraying over tank'sides
and around or between other obstacles._ In fact,
in these latter examples the turning of the pip
35 ing-to swing the nozzle is particularly useful and
to ‘the longitudinal axis of the piping, a handle
construction rotatably associated with the cou
pling member, and means connected to the pip
ingfor facilitating its manipulation and for turn
ing it on its said axis to vary the direction of the
spray discharge.
.
.
' 2. A play pipe construction having, in combi
nation, a hose vcoupling member, piping connect
ed at one end'to the coupling member so as to
be stationary» throughout relatively thereto, a 10
nozzle for discharging ‘an atomized spray mount
ed on the other end of the piping so that. the
axis of spray discharge is angularly disposed to
the longitudinal axis of ‘the piping, a handle
construction rotatably associated with the cou
rection of the spray discharge.
I
nation, a hose coupling member, piping ?xedly
connected at one. end'to the coupling member so
as to'be stationary throughout. relatively thereto,
a nozzle for discharging an atomized spray
mounted on the other end of the piping so that
the axis of spray discharge is angularly disposed
to the longitudinal axis of the piping, a handle
construction rotatably associated with the cou
pling member, and means connected to the pip 30
ing and spaced fromxb'oth said handle construc
tion'and the nozzle for facilitating the manipu
lation of the piping and for turning it on its said 7
axis to vary the direction of the spray discharge.
4. A play pipe'construction having, in combi- .
nation, a' hose-coupling member, piping ?xedly
quently be small.
as to be stationary throughout relativelylthereto,
i
'
It ‘will be seen that various changes may be
connected'at one. end to the coupling member so
a nozzle for
discharging an
atomized ' spray
made in the illustrated embodiments of the mounted on the other end of the piping so that
present vinvention without departing from the the 'axis 'of spray discharge isangularly disposed
true scope of the actual'invention set forth in ' to the longitudinal axis of the piping, a handle
the claims herewith. The particulars illustrated construction rotatably associated with the cou
and described are not, therefore, to be consid-' pling member, and another handle construction
45 ered essential. While the present inventionhas non-swingably mounted on the piping.
been disclosed in connection with theextinguish
. 5; A play pipe construction having, in, combi
ing of oil ?res, it will be seen that it is not lim
nation, a-hose coupling member, piping ?xedly
ited to this use,.and itis contemplated that the connected atone end to the coupling member so
apparatus may be constructed for manipulation as to ‘be stationary throughout relatively there
by one man instead of two, although the latter to,- a nozzle for discharging an atomized spray
is preferred. While the dimensions“ of thevar
mountedonv the other end of'the piping so that
ious parts of the- embodiment shown I may‘zobé the axis of spray discharge is angularly dis
viously be varied as desired to suit a given situ
posed to the longitudinal ‘axis of the piping, a
ation, it may be stated that in one embodiment handle construction rotatably associated with
55 that has been successfully-used in extinguishing the coupling'member, and another handle con
oil ?res, the over-all length, from the base of struction non-'swingably mounted on the piping
the coupling member ID to the tip of the nozzle and spaced from both the ?rst handle construc
29, is approximately six "feet, the distance from tion and the nozzle.
‘
"
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the axis of the handles 39 to the base of the cou
6. A play pipe construction having, in combi
pling member H1 is approximately 33 inches, ‘and nation, a hose coupling member, piping ?xedly
the handles 39‘measure approximately 15' inches connected at one end to the hose coupling mem
outwardly from the center of the piping. With her so as to be stationary'throughout relatively
a Water pressure of I 00 ‘pounds or more a hose
diameter of 21/2 inches is commonly used, and
the coupling member It therefore has an inter
nal diameter such as to receive a coupling proper
for such hose.
,
H
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Y
What is ‘claimed as new is:
l. A play pipe construction having, in combi
70 nation, a hose coupling member, piping ?xedly
connected ‘at one end to the coupling member so
as to be stationary throughout relatively thereto,
a nozzle for discharging an atomized spray
mounted on the other end of the piping so that
75 the ‘axis of spray discharge is angularly disposed
20'
3; A play pipe construction having, in combi
advantageous over present constructions since the
necessary changes in spray'direction will fre
‘
15
pling member, and means connected to the pip
ing and spaced from said handle construction
for facilitating the manipulation'of thezpiping
and for turning it on its said axis to ‘vary the di
1
45
50
55
60
thereto, a nozzle ‘for discharging an atomized
spray mounted on the other end of the piping so
that the axis of spray discharge is angularly dis; 65
posed to the longitudinal axis of the piping, a
handle construction. rotatably associated with
the hose coupling member,’ a coupling'?xed to
the piping, and a- handle construction non
swingably mounted on said piping coupling."
7. A play pipe construction having, in combi
nation, a ‘hose ‘coupling. member, piping ?xedly
70
connected at one end to the hose coupling mem-‘
ber so as to be stationary- throughout relatively
thereto, a nozzlefor discharging an‘ atomized 75
5
2,134,347
spray mounted on the other end of the piping so
that the axis of spray discharge is angularly
disposed to, the longitudinal axis of the piping, a
handle construction rotatably associated with
the hose coupling member, a coupling ?xed to the
piping and spaced from both the ?rst handle
construction and the nozzle, and another handle
construction non-swingably mounted on said
longitudinal axis of at least the second pipe, a
handle construction rotatably - associated with
the ?rst coupling member, and another handle
construction non-swingably mounted on the
pipe coupling.
‘
9.‘ A play pipe construction having, in combi-_
nation, a hose coupling member, a single length
_'of pipe ?xedly connected at one end to the hose '
coupling member, a nozzle for discharging an
atomized spray mounted on- the other end of the
8. A play pipe construction having, in combi
nation, a hose coupling member, a pipe ?xedly , pipe length so that the axis of spray discharge
is angularly disposed to the longitudinal axis of
connected at one end to the hose coupling mem
per, a pipe coupling mounted on the other end the pipe, a handle construction rotatably associ
of the pipe, a second pipe ?xedly connected to ated with the hose coupling member, a support
15 said pipe coupling so as to form therewith an embracing the pipe length and ?xed thereon be
operative extension of said ?rst pipe, a nozzle tween the hose coupling member and the noz
for discharging an atomized spray mounted on zle, and a second handle construction non-swing
,
the other end of the second pipe so that the axis ably mounted on the support.
of spray discharge is angularly disposed to the
WAYNE B. THOMPSON.
> piping coupling.
10
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CERTIFICATE OF
Patent No." 2,15,45,47.
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Mme.
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CORRECTION.
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momsom
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~ I October 25,1938.
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'.
’
Itis herebyeertified ‘that error a?peere 1n the pzfinted'speeificetion
of the above numbered patent requiring correction as fielLlowe:~ Page 2, first,
column, ‘line 252 for‘ "hose". reedhose; page )4, seeond ceZLumn,'-' line 8, claim
2,linebefore
5’, claim
the'8,‘syllable
for "first"
“cohneCt-“lns'ert
read. hose; and.f 136C117
that the
; ‘page
said
5, ‘second
vL’etctei'e 0011mm,
P‘etent
sheuld be read with this‘correctien thereinithat the‘ same, 'may confen? to
the record of the case in the'Pateht-dffice:
’
'
"
'
Signed and sealed thie‘éth day of December; A‘. E1958, _ '
Henry Van Arsda‘le
(Seal)
_'
-Act1ng,Ge1mn1ssioner-bf Patente'.
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