Improvements in Apparatus for Atomizing or Pulverizing Liquids.
Year: 1892

page_text: Date of Application, 18th Mar., 1892-Accepted, 23rd Apr., 1892
COMPLETE SPECIFICATION.
Improvements in Apparatus for Atomizing or Pulverizing Liquids.
I, FRANÇOIS FERNAND BOURDIL of 56 Avenue de Jena, 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 pulverizing
liquids in which the pulverized jet is projected through an aperture made in an
elastic or flexible diaphragm. By the substitution of an elastic or flexible
diaphragm for the rigid diaphragm ordinarily employed, the frequent choking to
which such atomizers are subject when the liquid contains solid matters in suspension
or is of a more or less thick consistency, is entirely avoided.
Reference is to be had to the accompanying drawing, forming part of this
Specification,
Figure 1 of which represents a part sectional elevation, and Figure 2 a horizontal
section, on line 1-2, of one arrangement of the apparatus.
Figure 3 is a part sectional elevation and Figure 4 a horizontal section on
line 3-4, of a modified arrangement.
The same letters of reference denote like parts in all the figures.
The liquid to be atomized is forced by means of a pump or other suitable means,
through the pipe a into the box or chamber which is preferably made cylindrical,
as shewn. The box is closed at top by a diaphragm c of india-rubber or other
sufficiently elastic material having a central bole d for the discharge of the
pulverized liquid said diaphragm being secured by a screw-threaded ring e or other
suitable means.
In Figure 3 the construction is similar except that a pillar fis fixed centrally in
the box 6 upon which the diaphragm rests so as to act as a valve, the diaphragm
rising to give passage to the pulverized liquid.
The action is the same in both arrangements, the liquid pulverized by the
gyratory movement which it acquires in box 6 escaping at orifice d in the form of
a conical jet. The elasticity of the diaphragm prevents choking and also renders
unnecessary the employment of the needle or equivalent device hitherto used in a
similar atomizer provided with a thin perforated metal disc. Moreover, as in the
arrangement illustrated in Figure 3, the diaphragm c acts as a valve in conjunction
with the pillar fat each return stroke of the pump by which the atomizer is
supplied the check valve generally employed in apparatus of this kind can be
dispensed with.
The method of producing the pulverization of the liquid may be varied without
in any way departing from the invention which is based essentially on the
employment of an elastic, in lieu of a rigid, diaphragm.
My improved apparatus may be employed for atomizing and distributing all
kinds of liquids for any purpose, including for instance those applied to agricultural
or industrial uses.
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-
1st. A liquid atomizer or pulverizer in which the pulverizing effect is obtained
by the expulsion of the liquid through a central aperture formed in an elastic
or flexible diaphragm, substantially as and for the purpose specified.
2nd. In a liquid atomizer or pulverizer, the combination of a flexible diaphragm c
having an aperture d with a box or casing & provided with an inlet a for the

page_text: “liquid, substantially as described and shewn in Figures 1 and 2 for the purpose
specified.
3rd. In a liquid atomizer or pulverizer, the combination of an apertured flexible
diaphragm c, d, with pillar f, box b, and inlet a for the liquid, substantially as
described and shewn in Figures 3 and 4 for the purpose specified.
.
whi 20AL .
F. F. BOURDIL,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.