Improvements in and relating to Fire Hose Nozzles.
Year: 1899

page_text: Date of Application, 6th June, 1899 -Accepted, 8th July, 1899
COMPLETE SPECIFICATION.
Improvements in and relating to Fire Hose Nozzles.
A communication from abroad by WALTER INGLIS AGNEW, a citizen of the United
States of America, residing at No. 1615, Main Street, in the City of Olympia,
County of Thurston and State of Washington, United States of America,
Lawyer.
I, PETER JENSEN, of No. 77, Chancery Lane, London, Chartered Patent Agent,
do hereby declare the nature of this invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:-
This invention relates to fire hose nozzles, and more particularly to that class of
nozzles adapted to throw a straight stream and also a spray of large diameter,
and has for its object to provide an improved construction of gates or valves for the
same whereby both the straight stream and the spray may be employed, or either
one employed alone, provision being also made for furnishing a small straight
stream where the full force, of the nozzle is not required.
A further object of the invention is to so improve and simplify the construction
of the spray portion of the nozzle that the latter can be readily manipulated and
the angle of projection of the spray be varied as may be desired.
These objects are accomplished in the manner and by the means hereinafter
described and claimed, reference being had to the accompanying drawings, in
which―
Figure 1 is a central longitudinal sectional view of a fire hose nozzle embodying
my invention, both the straight stream and the spray being shown cut off.
Figure 2 is a similar view, partly broken away, taken on the line 2-2, Figure 1.
Figure 3 is a view similar to Figure 1, the straight stream being shown cut off
and the spray open.
Figure 4 is a transverse sectional view taken on the line 4-4, Figure 3.
Figures 5 and 6 are detail views of the cut off valves.
Similar numerals of reference denote corresponding parts in the several views.
In the said drawings the reference numeral 1 denotes the casing, provided with
the interiorily screw-threaded projection 2 for connection with the hose pipe, and
with the exteriorily screw-threaded projection 3 having an inner concentric stream
pipe 4 connected thereto by the spider 5, an annular space being left between the
parts 3 and 4 for the passage of the spray stream.
Engaged with the screw-threads on projection 3 is a nozzle (i, while loosely
mounted on the stream pipe 4 is a disk 7, its outward movement being limited by
a nut 8 screwing on the outer end of the stream pipe 4. Also screw-threaded onto
the disk 7 is a deflecting collar 9, for the purpose hereafter to be described.
Within the casing 1, I have provided two independent cut-off gates or valves 10
and 11, each rotatable on an independent bushing 12, said bushings projecting
centrally through opposite sides of the casing and provided with suitable handles 13
for manipulating the same. It will be observed, by reference to Figures 3, 4
and 5, that the diameter of gate or valve 10 is only sufficient to cover the

page_text: end of the stream pipe 4, leaving open the annular spray passage, while the
gate or valve 11 is large enough to cover both passages completely, as seen in
Figures 1, 2 and 6, thereby completely cutting off the stream pipe and spray
passage. I have provided, however, in one side of the gate or valve 11 an
aperture 14, which when said gate or valve is moved to the position shown in
dotted lines in Figure 1, will register with the stream pipe 4 and thus provide
a small straight stream for extinguishing small conflagrations or for other
purposes.
From the above description the operation of my improved construction will be
understood to be as follows: Referring to Figures 1 and 2 it will be seen that both
the stream and spray are completely cut off by reason of the fact that the gate or
valve 11 completely covers both orifices, though when it is desired to employ a
small straight stream alone the same can be readily provided by turning said
gate or valve to the left to the position shown in dotted lines in Figure 1 when
the orifice 14 will register with the stream pipe 4. When it is desired to employ
the spray alone the gate or valve 11 is given a quarter turn to the left, or a three
quarter turn to the position shown in Figure 3, and gate or valve 10 turned to
cover the stream pipe 4, as also seen in Figures 3 and 4, which will leave the
spray passage open for the passage of the water therethrough. The force of said
water will instantly carry the disk 7 up against its collar 8 leaving an annular
passage between said disk and the nozzle 6 for the escape of the water, the amount
of flow being readily regulated or cut off by screwing nozzle 6 along the pro-
jection 3, the outer surface of said nozzle being preferably roughened to provide a
firm grip for the hand of the manipulator. The angle of throw of the spray
stream may be readily varied by manipulating the deflecting collar 9, so that the
spray may either be thrown forward at an angle, or deffected backward in a
shower over the manipulator of the hose, or caused to escape at any intermediate
angle.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
1. A nozzle, combining in its structure a stream pipe, an annular spray nozzle
surrounding said stream pipe, and two independent cut-off gates or valves, one
adapted to close both the stream pipe and spray nozzle and the other adapted to
close the stream pipe alone, substantially as set forth.
2. A nozzle, consisting of a casing, a stream pipe extending therefrom, and an
annular spray nozzle surrounding said stream pipe, in combination with two
independent cut-off gates or valves rotatable in said casing and each having a
bushing projecting centrally through opposite sides of said casing for manipulating
the same, one of said gates or valves adapted to close both the stream pipe and
spray nozzle and the other adapted to close the stream pipe alone, substantially
as set forth.
3. A nozzle, consisting of a casing, a stream pipe extending therefrom, a projection
surrounding said stream pipe and providing an annular intermediate spray passage,
a spray nozzle adjustable longitudinally on said projection, a disk on said stream
pipe toward and from which said spray nozzle may be adjusted to provide a varying
annular outlet for the spray passage, and a deflecting collar adjustable on said
disk for varying the angle of projection of the spray, substantially as set forth.
4. A nozzle combining in its structure a stream pipe, an exteriorily screw-
threaded projection surrounding said stream pipe and providing an annular inter-
mediate spray passage, a spray nozzle engaged with said threaded projection and
adjustable longitudinally on the exterior thereof, a disk on said stream pipe toward
and from which said spray nozzle moves in its adjustment to provide a varying
annular outlet for the spray passage, and a deflecting collar adjustable on said disk
for varying the angle of projection of the spray, substantially as set forth.
5. A nozzle, combining in its structure a stream pipe, a projection surrounding

page_text: said stream pipe and providing an annular intermediate spray passage, a spray
nozzle adjustable longitudinally on said projection, a disk on said stream pipe
toward and from which said spray nozzle may be adjusted to provide a varying
annular outlet for the spray passage, a deflecting collar adjustable on said disk for
varying the angle of projection of the spray, and means for cutting off both the
stream pipe and the spray passage or the stream pipe alone, substantially as
set forth.
Dated the 6th day of June 1800
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.