Improvements in and relating to Fire Hose Nozzles.
Year: 1898

page_text: Date of Application, 26th Apr., 1898-Accepted, 28th May, 1898
COME LEIE SPECIFICATION.
Improvements in and relating to Fire Hose Nozzles.
A communication from abroad by WALTER INGLIS AGNEW and JEROME BENNETT
FLYNN, Citizens of the United States of America, both of Woodruff Block,
in the City of Olympia, County of Thurston, and State of Washington,
United States of America, Gentlemen.
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:―
The object of the invention is to provide a new and improved fire hose nozzle,
which is simple and durable in construction, and arranged to permit a fireman to
throw a straight stream onto a fire, and a spray of large diameter, to extinguish
the fire and to completely protect and shield the fireman.
The invention consists principally of a casing containing a valved stream pipe
and a circular spray nozzle. The invention also consists of certain parts and
details and combinations of the same, as will be fully described hereinafter, and
then pointed out in the claims.
Reference is to be had to the accompanying drawings forming a part of this
specification, in which similar characters of reference indicate corresponding parts
in all the figures.
Figure 1 is a sectional side elevation of the improvement with the valve for the
stream pipe closed.
Figure 2 is a plan view of the same.
Figure 3 is a rear face view of the valve for the stream pipe.
Figure 4 is a sectional side elevation of the improvement, with the valve for the
stream pipe open; and
Figure 5 is a sectional plan view of the same, on the line 5-5 of Figure 4.
The improved fire hose nozzle is provided with a head or casing A, formed with
an internal thread A', for connection with the hose or play pipe through which
passes the stream of water. The outer end of the casing A is formed with an
internal thread A², engaged by a ring B¹ having a spider B2 for supporting the
stream pipe B, preferably arranged centrally of the casing, as plainly illustrated
in the drawings; the lower or inner end of said stream pipe being beveled, as
indicated in Figures 1 and 4, for forming a seat for the valve C adapted to open
and close said stream pipe.
The internal thread A2 is also engaged by threaded inner end D¹ of a conical
nozzle D, formed with an outwardly flaring mouth D2, arranged opposite a disk E
having a beveled outer edge corresponding to the flare of the mouth D² so that
said disk will seat itself on the mouth D². The disk E is loosely held on the
stream pipe B, and its outward sliding motion is limited by a nut F screwing on
the outer, threaded end of the stream pipe B.
The nozzle D is provided with a roughened external surface D³ for permitting
the fireman to turn said nozzle up or down in the thread A², to increase or decrease
.מ

page_text: the outlet opening at the mouth D2 and disk E, according to the spray desired to
be thrown by the device.
The valve C is adapted to be opened and closed by the fireman, and for this
purpose, the upper end of the valve is pivoted at C¹ to one of the arms of the
spider B2, and on the back of said valve are arranged lugs C2 having elongated
apertures for the reception of a pin G¹, held in the eye of a bolt G, screwing in a
sleeve H mounted to turn in a stuffing box A³ held on the casing A and having an
annular flange held between the stuffing box and the cap thereof, whereby the
sleeve may freely turn but will be prevented from longitudinal movement. On the
outer end of the sleeve H is secured a hand wheel H¹ for turning said sleeve, so as
to screw the bolt G inward or outward, to open or close the valve G as the case
may be.
Now it will be seen that by the arrangement described, the stream of water
passing into the casing A can be passed either in spray form past the nozzle D and
disk E, or it can be passed through the stream pipe B at the time the valve C is
open and the nozzle D is closed, see Figure 4. If desired, the nozzle D and the
stream pipe B may be opened, to force a central stream through the pipe B and a
spray through the nozzle D, so as to protect and shield the fireman.
It is understood that when the nozzle D is screwed inward and the water passes
into the casing A under pressure, then the disk E is forced outward from the pipe B
until it rests against the nut F, to permit the water to pass through the nozzle
spray opening between the disk E and the mouth D². It is further understood that
the spread of the spray is regulated by the operator adjusting the nozzle D.
The valve C and the disk E may be made plain, as shown in Figure 4, but the
preferred construction of the valve and disk is shown in Figure 1, in which the valve C
is provided on its face with a packing disk C³ of leather or like material, to tightly
close the lower end of the stream pipe B. The disk E, shown in Figure 1, is
provided with the body part E¹ on the top of which rests a gasket E2 held in place
by a threaded ring E3 screwing on the upper reduced end of the said disk.
packing ring or gasket Et is fitted into a recess in the lower end of the body E¹
to fit snugly on the stream pipe B.
A
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. A nozzle having a casing, a portion of which is internally threaded, a threaded
spider co-operating with the threads of the casing, a stream pipe carried by the
spider, the outer end of the stream pipe projecting beyond the casing, a disk carried
by the stream pipe, and a nozzle proper having a threaded portion co-operating
with the threads of the casing, the nozzle proper being capable of movement towards
and from the disk, substantially as described.
2. A nozzle consisting of a casing having a tapering inner portion and a cylin-
drical inner portion, the cylindrical portion being internally threaded, a spider
having threads co-operating with the threads of the cylindrical portion, a stream
pipe carried by the spider and projecting beyond the cylindrical portion of the
nozzle, a disk carried by the outer end of the stream pipe, a tapering nozzle proper
having a screw-threaded portion co-operating with the threads of the cylindrical
portion of the casing and being capable of movement towards and from the disk on
the stream pipe, and means for controlling the stream pipe, substantially as
described.
3. In a nozzle, the combination with a casing having a bearing and cap therefor,
of a stream pipe, a hinged valve capable of closing the stream pipe, an internally
threaded sleeve having an annular collar, the sleeve being revolubly held within
the bearing and the collar engaged with the cap thereof, and a bolt connected to
the valve and co-operating with the threads of the sleeve, substantially as
described.
4. A nozzle having a casing, a portion of which is internally threaded, a threaded

page_text: spider co-operating with the threads of the casing, a stream pipe carried by
the spider and projecting out of the casing, a disk held on the stream pipe,
a nozzle proper having adjustable connection with the casing and capable of
movement to engage and disengage the disk, and a valve commanding the stream
pipe, substantially as described.
5. A nozzle having a casing, a stream pipe held within the casing and having a
diagonal inner end, a disk carried by the stream pipe, a nozzle proper adjustable
on the casing and capable of engaging and disengaging the disk, a valve pivotally
mounted, adjacent to the inner diagonal end of the stream pipe and capable of
moving to close or open the same, and means extending through the casing by
which the valve may be operated, substantially as described.
6. A nozzle having a casing, a stream pipe held within the casing and extending
out of the same, a disk carried by the stream pipe, a nozzle proper movable on the
casing to engage and disengage the disk, a pivotally mounted valve capable of
movement to open and close the stream pipe, and means extending through the
casing by which the valve may be operated, substantially as described.
day of April 100.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.