Popular Science ( March 1937 )
Fins in Nozzle Increase Fire-Hose
End of new hose nozzle, showing the sets of fins that straighten
the stream of water. The inventor is seen with one of the nozzles.
Below, a test of the long-range effectiveness it affords.
Metal "feathers" built into a new type of hire-hose nozzle
increase the effective range of streams of water. Invented by
Horace Barker of Springfiield, Mass., the nozzle has two
sets of transverse fins; one set counteracts the swirls of the
water as it emerges from the hose, while the other straightens the
stream, reducing its spiral motion and its tendency to break into
spray as it travels through the air. Exerts state that the new
nozzle will not only add "punch" and distance to fire-hose
streams, but will increase their fire-extinguishing effectiveness
Fluid discharge device
Inventor(s): BARKER HORACE R
This invention relates to improvements in apparatus for
discharging fluid and is directed more particularly to
improvements in nozzle devices to be used in connection with
fire-fighting apparatus or the like.
The principal objects of the invention are directed to the
provision of water discharge apparatus which is particularly j!
adapted for use in connection with fire fighting apparatus, the
same being characterized by means adapted to facilitate the |j
discharging of a smooth stream of water over a greater distance !
than is possible by apparatus now in common use.
In connection with fire-fighting apparatus it is desired to
deliver a smooth stream of water over a considerable distance or
height at a considerable pressure. With present day apparatus it
is more or less difficult, if not impossible, to discharge a
stream at the desired pressures for the height or distances
desired and necessary. This is due to the fact that the water in
passing through the nozzle is swirled, rolled, or becomes
turbulent so that the discharged stream swirls, rolls or becomes
turbulent and consequently fans out, brooms or breaks. This
reduces its effectiveness since of course a smooth, well-defined
stream at the; desired pressures is necessary for the greater
distance or height.
According to this invention means is provided within the nozzle or
water-discharge means which tends to eliminate the ! turbulent
rolling or whirling action of the water during its passage
therethrough so that there is discharged from the discharge outlet
a smooth, uniform stream which by reason of its novel
characteristics I have found will carry a greater distance at the
desired pressures than is possible with present day nozzles. In
this way the nozzle at the end of a hose, stand pipe, or other
apparatus, more effectively discharges water. This is accomplished
by the provision of means in the form of plates in the water
passage which are disposed so that they are substantially in
parallelism with the axis of the water passage thereby.
Many and various other novel features and advantages of the
invention will be hereinafter more fully referred to in connection
with the accompanying description of the preferred form thereof,
reference being had to the drawings wherein:
Fig. 1 is a longitudinal sectional view through a water
discharge apparatus having the novel features of the invention
Fig. 2 is a cross-sectional view on the line 2-2 of Fig. 1;
Fig. 3 is a similar view on the line 5-5 of Fig. 1.
Referring now to the drawings more in detail, the invention will
be fully described.
A base is shown at 2 and this may be of the Siamese type i; having
separate water passages ij. and 6 which converge into a throat I:
indicated generally by 8.
The base 2 may take any form desired since it is not desired to be
limited to the particular form shown. It will be understood that
the base shown or any equivalent structure will be provided with a
throat such as 8 on its upper or outer end.
The nozzle member is indicated by 10. This nozzle member may be
carried' by the base and in the form of the invention shown it has
its lower or inner side in threaded engagement with the outer or
upper end of the base member 2.
The nozzle member 10 has a discharge outlet 12 at a more or less
distance from a throat or barrel portion 14. The discharge outlet
12 is preferably somewhat less in diameter than that of the throat
11, so that a water passageway 15 converges from the throat to the
discharge outlet 12.
The throat of the nozzle member is somewhat less in diameter than
that of the throat 8 of the base so that a water passageway is
provided which converges as shown.
In the throat 8 there are provided a plurality of relatively thin
plates or vanes 20 and 21 which extend transversely of the said
throat. These provide a plurality of passageways 22 therebetween.
These plates 20 and 21 are arranged so that the plane of their
surfaces are in substantial parallelism with the axis of the
throat 8. The plates 20 and 21 may be secured together and
associated with the throat in any desired manner. For instance the
plates may be slotted so as to be interlocked like the partitions
of a box.
In the form of the invention shown, the plates 20 and 21 are
associated with a sleeve 24 which is disposed in the throat 8 and
said plates may be secured to this sleeve in any desired and well
The throat 11 of the nozzle member has a central tube member 50
associated therewith and plates 52 and extend transversely of the
throat so that there are provided water passages around a central
The central tube 10 may be supported by or associated with the
plates 52 and 54 and as in the former case the tube 50 and plates
are disposed in a sleeve inserted in the throat 11. In accordance
with the invention the plates 52 and 54 and tube 50 may be
connected or associated in any convenient way but it is preferable
that the plates and tube be arranged in substantial parallelism
with the axis thereof.
As water is delivered to the throat 8 of the base 2 its tendency
to swirl or become turbulent is overcome by the plates 20 and 21
forming the passageways 22 through which the water travels.
The plates 20 and 21 are of considerable length. As will be seen,
the plane of their surfaces is substantially parallel to the axis
of the throat so that water is guided in a straight path and as it
passes through the tapering passageway 15 into and through a
throat 14 of the nozzle member it is again brought into contact
with the plates 52 and 51 As it travels through the central tube
50 passageways formed by the plates 52 and 54 its tendency to
swirl is overcome. The water, being controlled as it is, will, on
being discharged from the discharge outlet 12, emerge as a smooth
uniform stream which does not have the objectionable swirling,
rolling or turbulent tendency which would result in fanning out or
breaking. Thereby it is possible to discharge a stream of water at
the desired pressure and velocity which will carry over the a
relatively long distances or heights desired.
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