Year: 1887

page_text: .Date of Application, 27th May, 1887
*Complete Left, 17th Feb., 1888
"Complete Accepted, 6th Apr., 1888
I, FRANÇOIS FERNAND BOURDIL of 24 Rue de Téhéran Paris France, Civil Engineer,
do hereby declare the nature of this invention to be as follows :-
My Invention relates to an improved atomizer or spray producer for liquids, fluids
and semi-fluids in which the atomizing or spraying effect is obtained by forcing the
liquid in the form of a film between a rigid tube and an elastic sheath, and projecting
the said film against a surface whereby the liquid becomes atomized or pulverized.
This improved atomizer may be made of various dimensions suited to the kind of
liquid and purpose for which it to be used, such as for example, the spraying of
perfumes, or of water for moistening the atmosphere in mills, mines, and other places,
and also for spraying liquid preparations used for treating diseases of plants such as
vines and others.
The accompanying drawing shews, in vertical section, an example of the atomizer
consisting of a tube a for attachment at X, to a pump or delivery pipe by which the
liquid to be atomized, is supplied under pressure. The tube a is closed by a screw
plug & provided with a bevelled rim c, and the tube is provided just beneath the plug
with a row of holes e of suitable number and size. The tube a is enveloped in an
india rubber sheath which covers over the holes e and extends a sufficient distance
beyond them in the direction of the rim c, to give direction to the film of liquid. The
liquid under pressure is forced through the holes e and between the tube a and
adjacent surfaces of elastic sheath f, in the form of a thin film which is forcibly
projected against the bevelled surface of the rim e which projects from tube a in the
path of the escaping film whereby the liquid becomes atomized or sprayed.

page_text: To prevent the liquid leaking back between the sheath and tube, and to prevent the
india rubber sheath being shifted on the tube, the latter has one or more projecting
rims or beads g over which the sheath is sprung, or with a groove in which the sheath
is secured by a ligature.
The details of the apparatus may be varied without departing from the invention
for example, the form of the rim c against which the film of liquid is projected, may
be varied as likewise that of the stopper.
The rim and apertures e may be placed at any suitable point in the length of the
tube a which may itself be of circular, triangular, polygonal, or other form in cross
section, and be either straight or curved, as desired.
F. F. BOURDIL.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.

page_text: I, FRANÇOIS FERNAND BOURDIL of 24, Rue de Téhéran, Paris, France, Civil
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 :-
My Invention relates to an improved apparatus for atomizing or spraying liquids
or semi-liquids, in which the atomizing or spraying effect is obtained by forcing the
liquid in the form of a film between a rigid tube and an elastic sheath, and causing
the said film to be projected against a surface whereby the liquid becomes atomized or
pulverized.
This improved atomizer may be made of various dimensions suited to the kind of
liquid and purpose for which it is to be used, such as for example the spraying of
perfumes or of water for moistening the atmosphere in mills, mines, and other places,
and also for spraying liquid preparations used for treating diseases of plants, such as
vines and others.
Reference is to be had to the drawing left with my Provisional Specification which
shews in vertical section, an example of the atomizer consisting of a tube a for
attachment at X, to a pump or delivery pipe by which the liquid to be atomized is
supplied under pressure. The tube a is closed by a screw plug 6 provided with a
bevelled rim c projecting beyond the circumference of the tube a. In the sides of the
said tube there is a number of holes e of suitable size, and the tube a is enveloped in
an india-rubber sheath which covers the holes e and extends a sufficient distance
beyond them in the direction of the rim c to give direction to the film of liquid. The
liquid under pressure is forced through the holes e and between the tube a and adjacent
surfaces of elastic sheath in the form of a thin film which is forcibly projected
against the bevelled surface of the rim c which projects from tube a in the path of the
escaping film, whereby the liquid becomes atomized or sprayed.
To prevent the liquid leaking back between the sheath and tube, and to prevent the
india-rubber sheath being shifted on the tube, the latter has one or more projecting
rims or beads over which the sheath is sprung, or a groove in which the sheath is
secured by a ligature.
The details of the apparatus may be varied without departing from the invention-
For example, the form of the rim e against which the film of liquid is projected, may
be varied, as likewise that of the plug or stopper.
The rim cand apertures e may be placed at any suitable point in the length of the
tube a, and the latter may be of circular, triangular, polygonal, or other form in
cross-section, and be either straight or curved, as desired.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is ;-
An apparatus for atomizing or spraying, consisting in the combination of an
apertured closed tube or vessel enveloped in an elastic sheath covering the apertures
but capable of yielding under internal pressure so as to permit the escape of the
liquid therefrom in the form of a thin film, and an abutment surface against which the
liquid is directed by said sheath, substantially as, and for the purpose, specified.
Dad h 171 1