Improvements in Convertible Spray and Jet Nozzles.
Year: 1896

page_text: Date of Application, 18th Feb., 1896-Accepted, 21st Mar., 1896
COMPLETE SPECIFICATION.
Improvements in Convertible Spray and Jet Nozzles.
I, WILLIAM LEWIS BOYLE, of No. 28 West 20th Street, City of New York,
County and State of New York, United States of America, Banker, do hereby
declare the nature of my invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
My invention relates to nozzles for general purposes, the same being applicable
to all sizes from lawn sprinklers to fire hose; and said invention relates to
improvements in the nozzle and also in the cock or valve for controlling the nozzle,
and such cock or valve is also applicable to other purposes.
The objects of my invention are to render the nozzle instantaneously convertible
for spray or jet, and to render the cock or valve easy to shift under high
pressure.
My invention consists in a nozzle having concentrically arranged jet and self-
regulating spray orifices, and valvular means for directing the stream through either
said orifice at will, and also in an improved valve, and also in certain other features
of improvement hereinafter described and claimed.
Referring to the accompanying drawings, in which similar numerals of reference
indicate corresponding parts;
Figure 1, is a side elevation of my improved nozzle;
Figure 2, a front end view;
Figure 3, a longitudinal section taken on the line x-x of Figure 4;
Figure 4 a longitudinal section taken on the line y-y of Figure 3;
Figure 5 a side elevation partly in section, showing a modification of the spraying
device;
Figure 6, a longitudinal section showing a further modification of the spraying
device;
Figure 7, a front end view of Figure 6; and
Figure 8, a detail side view of the spraying device in Figure 6.
The spraying nozzle 1, has a bell-shaped mouth 2, and a core 3, through which
core the jet nozzle 4 extends and the annular spray orifice 5 formed between the
bell-shaped mouth 2 and the core 3, connects through the chamber 11 with valve
controlled ports 6 in the body 7, and the central jet orifice 4, connects with
a tube 8, terminating in a valve controlled port 9, and said tube 8, is supported by
the body 7.
The core 3, may be hemispherical as shown in Figures 3 and 4, or it may be
spherical as indicated by the dotted lines in Figure 3, or it may be cone shaped as
at 3, 3, in Figures 5, 6 and 8, or of any other suitable form. Such core may be
rigidly attached to the tube 8 if desired, but in order to render the spray self-
regulating to best advantage, I prefer to attach the said core 3 loosely upon the
tube 8 as shown in Figures 3 and 4, or the core may carry with it a portion 10, of
the tube 8 which is loosely connected with the tube 8, telescoping the same
as at 3ª and 3b in Figures 5 and 6. The force of the stream will then draw the core
back toward and within the bell-shaped mouth 2 when the water is ejected
through the ports 6, the core being self-retained, in the manner well known in ball
nozzles.
The core 3b may be provided with spiral grooves 12 as in Figures 7 and 8,
causing a rapid rotary motion of said core when the spray is discharged, thereby
more effectively throwing the same.

page_text: The screw 14, in Figure 5 serves to retain the core 3" when the central jet is
turned on.
The spring 15 in Figure 6 compressed between the shoulder 25 of the tube 10,
and the shoulder 26 of the nozzle 1, is designed to press the core toward the bell-
shaped mouth 2 when the pressure of the water is insufficient to perform this
function say under 20 pounds per square inch. Such spring is useful more
particularly for lawn sprinklers where the pressure is moderate, and the nozzle
part 1 in Figure 6, may be unscrewed from the body 7, and the central tube 4
plugged and the said nozzle 1 attached directly to the hose fitting; that is to say,
the spring 15 is a feature of my invention adapted for use upon nozzles designed
exclusively for spraying.
The valve consists of a rotary plug 16, having a very slight bearing contact with
its bore in the body 7; in fact a one-thousandth part of an inch clearance may be
given in cases where slight leakage is unobjectionable; and the thrust of the water
pressure, which often amounts to 120 pounds per square inch or over, is wholly
received by the anti-friction cone bearings 17, and 18, Figure 4. The slight wear
is taken up when necessary, by tightening the movable cone bearing or sleeve
nut-19, secured by a jam-nut 20, which sleeve surrounds the plug stem 21.
The valve 16 is preferably hollow in the present instance, and the ports 6, 6, and
the port 9 coincide with different cross-sections of the cylindrical body of the valve
and said ports are in line in the length of the cylinder. The opening 22, in the
plug coincides with the port 9 in the position shown, the ports 6, 6, being shut off,
while at a different position of the plug, the openings 23, 23, will coincide with the
ports 6, 6, the port 9 being shut off, and at an intermediate position of said plug, all
the ports 6, 6, and 9 will be shut off. The opening 24 in the plug is in permanent
communication with the inlet 25 of the body 7 or hose connection.
The formation of the plug 16", is slightly modified in Figure 6, the opening 24
being enlarged, the construction in other respects remaining the same as in Figure 4,
but constituting a segmental rocking valve.
When the valve 16 or 16 is at the position illustrated, the jet nozzle 4 has an
unobstructed straightway delivery from hose to mouth, which is an important
feature in the valvular construction.
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 bell-shaped mouth and a movable core in the mouth,
forming an annular pressure controlled spraying orifice between said mouth and
core, and an independent jet orifice extending through the core.
2. A nozzle having a bell-shaped mouth and a movable core in the mouth,
forming an annular pressure controlled spraying orifice between said mouth and
core, and a jet orifice extending through the core, and valvular means for
directing the stream independently through said spraying orifice or through said
jet orifice.
3. A nozzle having a bell-shaped mouth and a conic core revoluble on a fixed
longitudinal axis of the nozzle, forming an annular spraying orifice between said
mouth and core; said core having spiral grooves in its surface substantially as and
for the purpose described.
4. In a nozzle, the combination of a suitable body, a bell shaped mouth on said
body, a movable core in the mouth forming an annular pressure controlled spraying
orifice between said mouth and core, a longitudinal passage in the body communi-
cating with said annular spraying orifice, a central jet orifice opening through the
said core and having an independent longitudinal passage through the said body, an
opening in said body adapted for connection to a suitable source of supply, and a
valve adapted to connect said source of supply opening with either of said
independent longitudinal passages, or to cut off both.
5. The combination of a tubular outer spraying nozzle having a bell-shaped

page_text: mouth, a tubular inner jet nozzle concentric with said outer nozzle, and a
spraying core in said mouth supported by said inner nozzle substantially as
described.
6. A rotary plug valve having a stem and opposed cone bearings of less diameter
than the valve, one of which bearings consists of a tapering bearing shoulder
around the stem, and a longitudinally adjustable bearing sleeve having a
correspondingly tapered bearing surface surrounding the stem.
7. A rotary plug valve having a stem, a conic bearing shoulder around the stem,
a sleeve put surrounding the stem and having a correspondingly conic bearing face
serving both as a centering device and a packing gland, and an opposed cone
bearing suitably located in the axis of the plug.
8. In combination, a nozzle having a bell-shaped mouth, a movable core forming
in the mouth an annular pressure controlled spraying orifice, an independent
jet orifice extending through the core, and a spring adapted to press the core
inward toward the said mouth for the purpose described.
Dated this 17th day of February 1896.
CRUIKSHANK & FAIRWEATHER,
Chartered Patent Agents,
62 Saint Vincent Street, Glasgow, Agents for the Applicant.