IMPROVEMENTS IN WATER DELIVERY.⚫ NOZZLES' EMPLOYED IN THE EXTINCTION OF FIRE
Year: 1867

page_text: LETTERS PATENT to Edward Kenworthy Dutton, of the Patent Office;
3, Smithy Door, Manchester, in the County of Lancaster, Consulting
Engineer, for the Invention of "IMPROVEMENTS IN WATER DELIVERY.
⚫ NOZZLES' EMPLOYED IN THE EXTINCTION OF FIRE."-A communication
from abroad by William Barbour, of Lawrence, in the State of Massa-
chusetts, in the United States of America.
PROVISIONAL SPECIFICATION left by the said Edward Kenworthy
Dutton at the Office of the Commissioners of Patents, with his Petition,
on the 5th January 1867.
I, EDWARD KENWORTHY DUTTON, of the Patent Office, 3, Smithy Door,
Manchester, in the County of Lancaster, Consulting Engineer, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN WATER
DELIVERY NOZZLES' EMPLOYED IN THE EXTINCTION OF FIRE," to be as follows:-
The Invention is designed for the purpose of spreading or breaking up the
jet of water as it leaves the delivery nozzle, and is applicable in all cases
where a jet of water is used for the extinction of fire. The improvement
consists in the adaptation to the delivery nozzle of a set of levers or fingers

page_text: which are arranged in a circle around the nozzle, the lines of motion of the
levers being radials to the centre of the nozzle. The upper ends of the levers
have projections on their inner sides, which are preferably formed of a wedge
sbape and act as spreaders when moved into the jet of water issuing from the
nozzle, the said motion being effected by a grooved cam acting on the lower
ends of the levers, or in any other suitable manner. Any convenient number
of levers may be employed, and they may be moved altogether or in two or
more sets as preferred, the grooves in the cam being suitably formed to give
the desired motion.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Edward Kenworthy Dutton in the Great Seal Patent Office
on the 5th July 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
KENWORTHY DUTTON, of the Patent Office, 3, Smithy Door, Manchester,
in the County of Lancaster, Consulting Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifth day of January, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirtieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Edward Kenworthy Dutton, Her special license that I, the said
Edward Kenworthy Dutton, my executors, administrators, and assigns, or such
others as I, the said Edward Kenworthy Dutton, my executors, administrators,
or assigns, should at any time agree with, and no others, from tinie
to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle of
Man, an Invention for "IMPROVEMENTS IN WATER DELIVERY NOZZLES EMPLOYED
IN THE EXTINCTION OF FIRE," upon the condition (amongst others) that I, the
said Edward Kenworthy Dutton, by an instrument in writing under my
hand and seal, should particularly describe and ascertain the nature of the
said Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Edward Kenworthy Dutton, do hereby
leclare the nature of my said Invention, and in what manner the same

page_text: is to be performed, to be particularly described and ascertained in and by
the following statement and accompanying Drawings, that is to say :-
.
The Invention is designed for the purpose of spreading or breaking up the
jet of water as it leaves the delivery nozzle, and is applicable in all cases
where a jet of water is used for the extinction of fire.
The improvement consists in the adaptation to the delivery nozzle of a
set of levers or fingers which are arranged in a circle around the nozzle, the
lines of motion of the levers being radials to the centre of the nozzle. The
upper ends of the levers have projections on their inner sides which are pre-
ferably formed of a wedge-shape, and act as spreaders when moved into the
jet of water issuing from the nozzle, the said motion being effected by a
grooved cam acting on the lower ends of the levers or in any other suitable
manner. Any convenient number of levers may be employed, and they may
be moved altogether or in two or more sets, as preferred, the grooves in the
cam being suitably formed to give the desired motion.
In order that this present description of the Invention may be readily
understood I have attached hereunto a Sheet of Drawings made about full
size, and having corresponding letters of reference marked on the same parts
in the various Figures referring to the Drawings.
Fig. 1 is an elevation, partly in section, shewing the fingers or levers, which,
are colored yellow in the Drawing, drawn back from the centre of the nozzle,
in which position they would be clear of the issuing jet of water; Fig. 2 is a
section through the centre line of the nozzle shewing the fingers in the
position as when acting as spreaders; Fig. 3 is a plan looking on the top of
the nozzle, and shews all the fingers in the position as represented in Fig. 2;
Fig. 4 is a plan of the plate in which the centres or trunnions of the
levers work, and which keeps each lever in position; and Fig. 5 is a
plan of the grooved plate or "cam" which gives the desired motion to the
levers.
In Figs. 1 and 2 a is the body of the nozzle; b, b, are the fingers or levers,
those to the front of the vertical centre line in Fig. 1 being removed for
greater clearness, and two opposite fingers only being shewn in Fig. 2 for the
same reason; c is the plate in which the levers work shewn in plan in
Fig. 4; d is a grooved collar or "cam" which revolves on the body of the
nozzle "a" and actuates the levers, the said plate being shewn in plan in Fig. 5;
and "e" is a shield or guard to protect the levers from accidental injury.
The upper part of the levers which are shewn projected into the issuing
jet of water in Fig. 2 are preferably formed of a wedge shape tapering from
the upper edge to the lower edge, as shewn in Fig. 6, and from the body of

page_text: the lever to the end of the projection, as shewn in Fig. 3. The levers are
fitted into slots formed in the collar or plate c, as shewn in Fig. 4, the
trunnions working in a groove turned in the edge of the plate, suitably
formed filling pieces g, 9, being inserted in the grooves to retain the levers in
position. The lower ends of the levers enter the grooves in the collar d, two
levers being actuated by each groove in the variety of nozzle represented as
at 1, 1, Fig. 5, which shews the position of the lower ends of the levers when
the upper ends are clear of the jet of water. On the collar & being caused
to revolve in the direction of the arrow until the lower ends of the levers
occupy the positions 2, 2, in each groove each alternate lever will have been
moved into the position shewn in Fig. 2, the others remaining as in Fig. 1.
A further rotation of the collar bringing the lever ends into the portion of
the groove most remote from the centre, as at 3, 3, when the whole of the
levers will be in the position shewn in Figs. 2 and 3, the upper projecting
portions of the levers converging in the issuing jet of water h, and causing the
same to be spread, broken up, or distributed more or less according to the
extent to which the collar d is rotated. The levers or fingers 6 may be varied
in form or number, and may be actuated by means other than those above
described if preferred.
Having now described and ascertained. the nature of the Invention, I will
proceed to distinctly define the extent of the said Invention, and for this
purpose I wish it to be distinctly understood that I claim as novel the con-
struction of water delivery nozzles with fingers, levers, or spreaders arranged
around the central axis of the nozzle, the said fingers, levers, or spreaders
having suitably shaped portions or projections which can be moved or turned
into the issuing jet of water by the means herein-before described and illus-
trated, or by any other suitable means for the purpose of spreading or
breaking up the jet of water.
In witness whereof, I, the said Edward Kenworthy Dutton, have here-
unto set my hand and seal, this Fourth day of July, in the year of our
Lord One thousand eight hundred and sixty-seven.
EDWARD K. DUTTON. (L.S.)