The Manufacture of Mist Spraying Nozzles for Hop and Plant Washers and for Mist Spraying Purposes generally.
Year: 1892

page_text: Date of Application, 9th Apr., 1892
Complete Specification Left. 9th Jan.. 1893-Accepted, 11th Feb., 1893
PROVISIONAL SPECIFICATION.
The Manufacture of Mist Spraying Nozzles for Hop and Plant
Washers and for Mist Spraying Purposes generally.
I, RICHARD MUIRHEAD, of The Kentish Engineering Works Ltd., Maidstone
Kent, Engineer do hereby declare the nature of my said invention to be as
follows:-
This invention relates to a novel manufacture of mist spraying nozzles i.e. nozzles
from which can issue a liquid broken up or distributed at the outlet into minute
particles of a mist or dew like character instead of in comparatively large globules
as from the best known nozzle.
For the purpose of my invention I perforate a stem or plug, the perforations
being from the side of the bell shaped end. The apex or point of the plug is of
such a curve that when the thimble or outer cap i.e. (nozzle proper) is turned on
the plug stem, a clearance more or less is formed between the plug and thimble,
which space can be regulated or be completely closed as desired.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for R. Muirhead.
COMPLETE SPECIFICATION.
The Manufacture of Mist Spraying Nozzles for Hop and Plant
Washers and for Mist Spraying Purposes generally.
I, RICHARD MUIRHEAD, of The Kentish Engineering Works, Ld., Maidstone,
Kent, Engineer, 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 :-
This invention relates to a novel manufacture of mist spraying nozzles i.e. nozzles
from which can issue a liquid broken up or distributed at the outlet into minute
particles of a mist like character, instead of in comparatively large globules as from
the best known nozzle.
In order that my invention may be readily understood, I have appended the
following drawings, in which
Figure 1 is a side elevation of the body and stem of a nozzle constructed with
the accessory parts removed i.e. without the nozzle cap, lock nut, and joint ring.
Figure 2 is a longitudinal section of the nozzle cap or distributor.
Figure 3 is a side elevation of the apparatus complete but with the nozzle cap,
lock nut, and joint ring in section, the several parts being in their relative positions.
Figure 4 is a transverse or end view of the conical point, or tip, of stem of
Figures 1 and 3.
Figure 5 is the side elevation of the body and stem of a nozzle constructed
according to a modification of my invention.
Figure 6 is a transverse or end view of the conical point, or tip, of stem of
Figure 5.
Referring to Figures 1 to 4, A is the stem which is perforated at B to be in
communication with a central hole C from the hole B, and lengthwise of the stem
is a groove or grooves D, D, straight or curved, and preferably two situated on
opposite sides thereof, which grooves terminate on the sides of the rounded or
conical end, as shown.
The stem A is provided with a threaded portion E for the attachment of the
cap F which screws on it to regulate the distance the stem and the said nozzle cap
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page_text: shall be apart to suit the quantity and fineness of the liquid issueing from the
grooves D, D, for distribution in fine spray or mist form from the outlet G. H is
another threaded portion on the stem A for a lock nut I, between which and the
lower end of the cap F, a rubber or other kind of packing ring J can be arranged
to prevent liquid escaping from that part, the liquid being under pressure for force
purposes.
By this process, the liquid is conveyed to the outlet orifice at end of nozzle cap.
It will be observed that the grooves do not extend quite to the extreme point of
the stem but terminate about of an inch therefrom. The plain portion thus left
at the point is made to fit exactly the extreme end of the conical cavity of the
nozzle cap i.e. at the part surrounding the small outlet hole G. When therefore
the nozzle cap F is turned on the fixed stem A, a clearance more or less is formed
between the end of the stem A. and the nozzle cap F, which space can be regulated
so as to vary the quantity and fineness of liquid discharged, or by screwing the cap
down on to the stem, the orifice can be closed entirely, thus forming a stop valve,
as shown in Figure 3. The escape of liquid at lower end, or rear of nozzle cap is
prevented by the ring J, or it might be by a small cupped leather washer, or other
equivalent held up tightly by the lock nut. I, which likewise serves to hold the
nozzle cap F in any desired position.
Figure 5 shows a modification of my improved nozzle, in which it will be seen
that the grooves do not terminate on the sides of the conical end but are carried up
to the point, or it may be slightly within or beyond the point. The part of the
grooves which are on the cylindrical portion of the stem are here shown quite
straight and parallel with the axis of the stem but directly the conical part is
reached, the grooves begin to twist spirally but the spirals may commence at the
hole. The effect of this is that when the nozzle cap is unscrewed so as to leave a
considerable clearance between it and the end of the stem, the issuing stream is not
affected by the spirality of the grooves but when the cap is screwed down so as to
reduce the clearance, the liquid is compelled to keep in the spiral grooves, and is
thus more or less disseminated, or broken up just prior to the issuing, which tends
not only to still further reduce the quantity but also to disperse it more and cause
it to spread out wider.
I am aware that internal cones and exterior cap like nozzles have been employed
to the purpose for which my invention has been devised, therefore I make no claim
broadly to the use of such articles but desire to limit my invention to what I show
in the annexed drawings.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The construction of a liquid spreading nozzle composed of a pointed and
grooved stem, and an adjustable cap in the manner and for the purposes set
forth.
2. The construction of a nozzle with a pointed or bullet headed stem having
straight or curved or part curved grooves in outer surface terminating near the
point or tip, and leading from an internal passage, and coverable by an adjustable
cup with central hole for regulating the issue of liquid therefrom and the distri-
bution of such liquid in fine spray, or mist-like form, as described.
3. The combination of an exteriorly grooved stem with central feed aperture,
and with pointed or bullet headed end, and an adjustable centrally holed cap, the
two constituting a regulatable nozzle for distributing liquids, as set forth, also
available as a stop cock, as explained.
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H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said Richard Muirhead.