Improvements in Variable Nozzles.
Year: 1897

page_text: Date of Application, 6th Apr., 1897-Accepted, 19th June, 1897
[Communicated from abroad by THE GLOBE NOZZLE COMPANY, of Charleston,
W. Virginia, one of the United States of America.]
Improvements in Variable Nozzles.
I, JOHN LIDDLE of 154, St. Vincent Street, in the County of the City of
Glasgow, 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, that is to say:-
The invention relates to variable nozzles and has for its object to provide a
simple and efficient means of discharging through either of several outlets at will;
and the invention consists in the construction hereinafter described and particularly
pointed out.
In the accompanying drawing
Figur 1 is a longitudinal section.
Figure 2 is a front elevation.
Figure 3 and 4 are partial sections on lines 3-3 and 4-4 respectively.
Numeral 1 denotes a detachable discharge pipe terminal or section made of hard
brass or ther suitable metal having a hollow approximately semi-globular end 2
provided with screw threads at 3 whereby it may be connected with a similarly
shaped part 4 having suitable threads whereby to make the connection.
Within the hollow globe thus formed is situated an elastic tubular sphere 5 of
rubber or the like having a passage 6 continuous with that of the discharge pipe.
8 indicates an integral tubular extension of the rubber fitting a seat 81 in the pipe
and held therein by a retaining ring 9 which may be split and expansible if
desired.
10 indicates a hollow hemisphere fitting the approximately hemispherical ring 4
and provided with differently sized openings 11, 12, 13 and 14, the number of which
may be varied.
15 denotes pins having their outer ends situated in a groove or way 16 formed
near the base of the hollow hemisphere 10. This part 10 can be freely rotated
about part 4 in a transverse plane passing through the pins 15. The said part 10
can also be freely rotated or tilted about part 4 in either direction the pins 15 acting
as pivots, and the whole forming a universal joint.
By suitable manipulation of the perforated hollow hemispherical cap 10, any one
of its openings can be placed in alignment with the tubular passage through the
rubber and with the bore of the discharge pipe.
To cause such alignment it is only necessary to rotate the cap 10 transversely
until the particular opening which it is desired to use is situated in a plane midway
between the pins whereupon it can be tilted, if necessary to bring the opening
immediately over the discharge passage. At such time all the openings are closed
by the interior part 4.
The pressure of the issuing stream of water will crowd the packing ring 5 against
the joint between parts 4 and 10 on their interior near the discharge orifice and will.
effectually prevent all leakage at that point. The joint between parts 2 and 4 is
also to be made water tight by the same means. An imperforated part 10¹ of
the cap 10 is provided for the purpose of entirely closing the several discharge
openings. The packing is adapted to make all joints tight when the discharge is
thus entirely cut off.
The device thus described has a screw threaded socket 17 or other like means for
coupling it with a hose or pipe and can be used for throwing streams of various
го

page_text: sizes.
18 denotes fine oblique orifices adapted to spray a part of the discharge.
The shape and character of these various outlets or discharge orifices 18 can be
changed without departing from the improvement.
The parts 2 and 4 if made integral would operate as described and be within the
scope of the improvement.
The main exterior parts of the device can be assembled by first entering part 4
having one pin 15 fixed therein in the cap 10, the said pin being at such time
entered in the groove 16 in the cap. The latter is then moved to bring an opening 20
formed in the cap immediately over a screw socket 19 of the part 4 and a second
pin 15 can then be passed into said opening 20 and screwed into socket 19.
In this specification, I also reserve the privilege of pivoting the cap 10 on two
stationary pins as 22 Figure 6, to partially rotate on the end of the nozzle instead
of in the groove 16 above described.
It is not essential that the cap 10 be made integral and its base may consist of a
detachable ring 21. Other more mechanical changes will not depart from the
invention provided substantially the same mechanical and operative principles are
employed.
It is not essential that the parts 2 and 4 have an approximately spherical interior
opening and their interior form as well as that of the packing may be changed as
indicated for example in Figure 3.
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
1. The combination of a pipe terminal having an approximately spherical end
made in sections and provided with a discharge exit, a cap 10 provided with
openings and fitting said pipe end with a universal joint connection, and a perforated
packing 5 having a passage closing the joint between the pipe end and the cap in
every situation of the latter and also closing the joint between the end sections and
co-extensive with the diameter of the spherical end, substantially as described.
2. The combination of a pipe terminal having an approximately spherical end
made in sections and provided with a discharge exit, a cap 10 provided with
openings and fitting said pipe end with a universal joint connection, and a perforated
packing 5 having a passage closing the joint between the pipe end and the cap in
every situation of the latter and also closing the joint between the end sections and
co-extensive with the diameter of the spherical end, said packing having an
extension 8, substantially as described.
3. The combination of the pipe terminal having spherical end 2, a hollow
hemispherical part 4 secured to said end, a cap 10 having several openings and
movable about said parts 4 and 2 to cause any desired opening to register with the
pipe passage, and the tubular packing, substantially as described.
4. In combination with a pipe terminal having an approximately spherical end,
an approximately hemispherical cap provided with several perforations and having
a groove 16, and pins 15 fixed in the spherical end and situated in said grooves,
substantially as described.
5. In a variable nozzle the combination of a solid rubber sphere having a
discharge passage through its centre, enclosed in an approximately spherical end,
surmounted by a hemispherical cap having several perforations of different sizes,
the cap pivoted on two pins at its base permitting it to partially rotate to expose
either of the perforations to the line of discharge or to cut off at will as and for the
purpose above specified.
Dated this 5th day of Anril 1807
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Patent Agents.