Year: 1895

page_text: Date of Application, 14th Nov., 1895-Accepted, 14th Dec., 1895
We, WILLIAM AUGUSTUS SWIFT Manufacturer and WILLIAM WEAVER
STEWART Physician both of Columbus in the County of Muscogee and State of
Georgia, United States of America do hereby declare the nature of our invention
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:—
Our invention relates to an improvement in nozzles, the object of the invention
being to produce a nozzle by means of which the fireman can be protected from
excessive heat.
A further object is to so construct a nozzle that a spray of water can be made to
flow from the same, in rear of the tip through which the straight stream passes.
A further object is to produce a nozzle by means of which a solid stream and a
spray may be made to flow therefrom simultaneously, or either a stream or a spray
separately.
A further object is to produce a nozzle which may be used as a lawn or street
sprinkler by setting the nozzle in a portable stand, or with the nozzle attached to a
hose and throwing the water at any place which may be desired.
A further object is to produce a spray in the rear of the tip, and by changing the
tip having solid outlet, to one having closed perforated end to form a combination
straight and lateral spray, the object being to use both outlets for sprays when
fighting fire at close range, thus covoring large areas.
A further object is to make the tips for different sized outlets for the water, say
from inch to 1 or 2 inches in diameter without changing any other part of the
nozzle.
With these objects in view the invention consists in certain novel features of
construction and combinations and arrangements of parts as hereinafter set forth
and pointed out in the claims.
In the accompanying drawings;
Figure is a sectional view illustrating an embodiment of our invention ;
Figures 2 and 3 are detail views.
A represents a conical pipe or nozzle provided at its larger end with internal
screw threads a for the reception of the coupling of a hose, and at its smaller end,
said pipe or nozzle is provided with external screw threads for the reception of
the nozzle tip or outlet c. The tip or outlet c is mado at its rear end with an
annular outwardly and slightly forwardly projecting flange 1, the function of which
will be presently fully explained, or said flange might be made to project at right
angles from the tip.
At a point between its ends, the pipe or nozzle A is provided with external screw
threads d with which screw-threads e at the rear end of a shell B mesh, said shell
being made to enclose a portion of the pipe or nozzle A and form a ohamber
between itself and said pipe or nozzle. The forward end of the shiell B is made of
greater internal diameter than the external diameter of the pipe or nozzle A so as
to form a duct or channel g which communicates at its rear end with the chamber f
and the extreme forward end of the shell is made with an annular, flaring flange i
disposed nearly parallel with the flange 1. An annular outlet passage 2 is thus
formed between the flanges 1 and . The flange i is slightly curved and projects
Bomewhat beyond the Hange 1. The pipe or nozzle A is made with a series of
elongated openings e (preferably four in number) through which water will pass,
حيي

page_text: from said pipe or nozzle into the chamber and from thence through the annular
channel or duct g to the annular outlet 2, from which it will be emitted in the form
of a spray similar in shape to an umbrella. The nozzle will preferably be provided,
at a point forwardly of the opening 3, with a valve 4 by means of which the flow of
water to the tip or outlet c can be stopped if desired, and said tip may be made
open for a solid stream or enlarged and perforated for a spray.
From the construction and arrangement of parts above described, it will be seen
that a solid stream of water can be made to flow through the outlet c if open outlet
is used, or spray, if a perforated tip (Figure 3) be used, and simultaneously a spray
will be emitted in rear of the outlet c. This spray will protect the fireman using
the nozzle, from the excessive heat of the fire. By means of our improvement, 'a
solid stream can be made to flow from the nozzle, aud at the same time a consider-
able area in proximity to the fireman can be wet without the necessity of diverting
the main stream from the outlet c. If desired, the nozzle can be used without the
spray, by turning the shell B so as to cause the forward end thereof to bear against
the rear of the tip c and thus close the annular outlet 2, or the spray could be used
independently of the main stream, by merely closing the valve 4. The solid stream
aud spray can thus be used simultaneously, or either one without the other, as
desired.
By making the flange i curved and wider than the flange 1, it will be seen that by
causing the flange i to approach comparatively close to the flange 1, the spray can
be made to flow straight ahead or approximately so. By moving the flange i
rearwardly so as to enlarge the chamber or outlet 2, the spray will flow laterally,
practically coincident with the rear face of the flauge 1. Instead of making the
flauge integral with the shell B as shown in Figure 1, it may be made on a
sleeve adapted to screw on the forward end of the shell B, as shown in Figure 2.
Water might be conveyed to the spray in other ways than above described, and
various slight changes might be made in the details of construction of our invention
without departing from the spirit thereof or limiting its scope and hence we do not
wish to limit ourselves to the precise details of construction herein set forth, but,
·
Having now particularly described and ascertained the nature of our said inven¯
tion, and in what manner the same is to be performed, we declare that what we
claim is:
1. A nozzle constructed to emit water from its end and also rearwardly of its
end, substantially as set forth.
2. A nozzle constructed and adapted to throw a solid stream of water and a spray
simultaneously as set forth.
.3. The combination with a nozzle, of means for causing a solid stream of water
and a spray to be emitted therefrom simultaneously or alternately, substantially as
set forth.
4. The combination with a nozzle baving an outlet tip at one end, of means for
causing a spray to be emitted from the nozzle in rear of said tip, substantially as set
forth.
5. The combination with a nozzle having a flange in rear of its outlet, ofia shell
having a flange at its outer end adapted to act in conjunction with the first
mentioned flange to form a spray and means for conducting water to said shell,
substantially as set forth.
6. The combination with a nozzle and a valve therein, of an adjustable spray in
rear of the outlet of the nozzle, substantially as set forth.
7. The combination with a nozzle, of a tip or outlet having an annular flange, a
shell enclosing a portion of the nozzle, the latter having, openings communicating
with the interior of the shell, and a flange at the forward end of the shell' adapted
to act in conjunction with the first mentioned Hange to form a spray, substantially
as set forth.
8. The combination with a nozzle having openings between its ends and a tip on
said nozzle provided with an annular flange, of a shell adapted to screw on said

page_text: nozzle and form a chamber which communicates with the nozzle through the
said openings therein, an annular flange at the forward end of the shell adapted to
form, with the first-mentioned flange, an annular outlet, and a duct between said
annular outlet and said chamber, substantially as set forth.
9. The combination with a nozzle and a tip thereon having an annular flange, of
shell on said nozzle and communicating therewith, an annular flange with a
curved face, at the forward end of said shell and forming, with the flange on the
tip, an annular outlet passage, the annular flange on the shell being made wider
than the annular flange on the tip, substantially as set forth.
Dated this 14th day of November 1895.
HERBERT HADDAN & Co.,
18. Buckingham Street, Strand, London, W.C., Agents for Applicants.