Year: 1886

page_text: Date of Application, 19th July, 1886.
Complete Left, 14th Apr., 1887.
Complete Accepted, 17th May, 1887
I JAMES KNOTT, of 59 Higher Hillgate, Stockport in the County of Chester,
Engineer and Machinist do hereby declare the nature of this invention to be as
follows :-
The object of this invention is to provide the delivery pipe of a fire engine hose or a
garden hose with a readily adjustable nozzle whereby the diameter or the thickness of
the jet of water can be varied at will.
I provide the end of the nozzle with an excentric flange, the centre of which is a
point outside the diameter of the nozzle.
Against the face of this excentric flange I fit a circular plate or cap so that it can
revolve (around a central screw, or pin) in close contact therewith, the two adjacent
surfaces being ground together so as to fit water tight.
This circular plate or cap is provided with two or more holes, each fitted with a jet
of different diameter and so situated that by turning the said plate or cap partly round
either of the jets may be brought opposite to the nozzle. The distance between the
holes must be such that one jet will commence to be opened before the other is quite
closed, so that the water is. not entirely shut off whilst the change is being effected.
The excentric flange is provided with a spring catch and the edge of the circular
revolving plate or cap is provided with a notch corresponding with each jet, the
pressure of the spring when it falls into a notch being sufficient to hold its
corresponding jet in its position opposite to the nozzle, but still not sufficient to
prevent the plate or cap from being turned by the application of moderate force, when
it is required to change the jet.
1002
GEORGE DAVIES,
4, St. Ann's Square, Manchester,
Agent for the Applicant.

page_text: An Improved Nozzle for Fire Hose or Garden Hose.
I JAMES KNOTT of 59 Higher Hillgate, Stockport, in the County of Chester,
Engineer and Machinist, 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 and accompanying drawings:—
The object of this invention is to provide the delivery pipe of a fire engine hose or a
garden hose with a readily adjustable nozzle whereby the diameter or the thickness of
the jet of water can be varied at will.
And in order that my said invention may be properly understood I will now proceed
more particularly to describe the same with reference to the accompanying sheet of
illustrative drawings.
Fig. 1 of the said drawings is a longitudinal section of my improved delivery
nozzle.
Fig. 2 is an outside view of the same.
Fig. 3 is a view of the front of the nozzle, that is to say of the end marked A Fig. 1.
Fig. 4 is a view of the other end marked B Fig. 1.
The back portion a of the nozzle is coupled to the hose pipe in the ordinary or in a
suitable manner and is formed with an excentric plate or flange & the true centre of
which is situated at c and outside of the diameter of the nozzle a. The face of the
flange is carefully prepared or ground and upon it is placed a cap d which is
perforated with delivery nozzles e. f. y. h. the delivery mouths of which all vary in
size from one another. The cap d is centered upon the flange b by the pin e and its
face in contact with the excentric flange b is similarly ground or prepared so as to
make a watertight joint therewith. A ring of metal, rubber, leather or other
suitable packing material is or may be inserted in a groove which is formed in the
plate and round the orifice a the said ring pressing upon the back of the cap d and
assisting to maintain the watertightness of the joint between the parts a and b. In
some cases this packing ring might consist of a ring of metal resting upon a ring of
rubber at the foot of the groove, the metal not being liable to be cut while the rubber
confers the requisite elastic pressure. The centres of the perforations e. f. g. h. are
all equidistant from the centre e and the said perforations are at their junctions with
the nozzle a of equal diameter therewith. This diameter however becomes contracted
towards the delivery mouth the contraction varying in each case. For example the
delivery mouth e may be of equal or about equal diameter with the nozzle a. The
delivery is less in diameter; the delivery still less and the delivery / least of all.
The cap d is held in position against the flange by means of a nut i which screws
upon the periphery of the flange band is formed with a lip which bears upon a ring
ledge formed on the cap d and holds the cap securely against the face of the flange b.
The nut can be set so as to press the cap sufficiently tightly against the flange b
without jambing it and when so set the nut can be fixed in position by the adjustable
slotted stop which is screwed to the back of the flange and engages with a pink

page_text: projecting from the nut i. The cap d can thus be revolved upon the centre c so as to
bring any one of the delivery orifices e. f. g. or h opposite to the nozzle a. The said
orifices are so spaced that one jet will commence to be opened before the other is closed
so that the water is never entirely shut off while the change is being effected. I thus
avoid sudden shocks and possible damage to the hose. In order to determine when
the centre of any of the delivery orifices is exactly opposite to the centre of the
nozzle a I provide a spring catch which is screwed to the back of the excentric
flange b. The catch consists of a flat spring at the free end of which is a pin or
detent m which passes through a hole in the flange band bears upon the revolvable
cap d. In the path of this detent and on the working face of the cap d 1 form as
many countersunk depressions n as there are delivery orifices in the cap and I place
these depressions in such positions relative to the orifices that when the detent m comes
opposite to and is forced into one of them, one of the orifices e. f. g. h, is exactly
opposite to the nozzle a. Each of the depressions n is made, sufficiently deep and
engages sufficiently with the detent m to hold its corresponding jet in its position
opposite to the nozzle a, but the power of holding it is not so great as to prevent the
cap from being turned by the application of a moderate degree of force when it is desired
to change the jet. I might however vary the methods both of holding the nut i in
position and of arresting the rotation of the cap at the proper intervals. Although I
have shown four delivery orifices in the cap, it will be obvious that a greater or less
number than four might be used.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed I declare that what I claim is:—
(1) The general arrangement and combination of parts composing a jet delivery
nozzle for the indicated purposes, whereby the size of the jet of water or other liquid
can be varied at will substantially as hereinbefore described and shown.
(2) A jet delivery nozzle a having an excentric flange or plate upon which is
mounted a revolvable cap d containing delivery orifices of different diameters capable
of being brought opposite to the nozzle a so as to vary the bulk of the jet, substantially
as hereinbefore described and shown.
(3) A jet delivery nozzle a having an excentric flange or plate b upon which is
mounted a revolvable cap d having delivery orifices of different sizes, which can be
brought opposite to the nozzle a, the said cap d being held against the flange by a
nut and controlled in its movements by a detent m for the purposes and all
substantially as hereinbefore described and shown.
Dated this 13th day of April 1887.
DUTTON & FULTON,
1, St. James Square, Manchester,
Agents.