Apparatus for vistening Air.
Year: 1894

page_text: Date of Application, 4th Dec., 1894-Accepted, 12th Jan., 1895
Apparatus for vistening Air.
1, EMILE MERTZ, of 5 Weidengasse Basle, in the Republic of Switzerland,
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 apparatus for moistening air of the kind described in the
Specification of my former Letters Patent No. 15216 dated 9 August 1894.
My present improvements consist―
Firstly in the arrangement of a ring of rods below the atomizing cone, so that
the streams of water which issue from the nozzle and are not atomized by the latter
may be caused to strike against the ring, and their atomization be thereby effected.
Secondly in the construction of the nozzle with a hemispherical cavity around
the exit aperture of the nozzle, in combination with openings arranged tangen-
tially for the admission of water into the nozzle, with the object of allowing of the
atomization of the drops of water which, as the result of the whirling motion of the
water under pressure in the nozzle, fly off laterally at the openings of the latter, such
atomization being effected by the drops (held back by the cavity referred to) being
carried back to either the atomizing cone or the atomizing ball.
Thirdly in providing a vertical hole in the atomizing cone or in the ball by which
it is surmounted, such hole being situated in a line with the axis of the nozzle with
the object of allowing the water jets which issue vertically from the nozzle to
strike against the water which collects in this hole when the apparatus is in action,
the atomization being under these circumstances favoured by the incompressibility
of water.
To enable my invention to be fully understood I will describe how it can be
carried into practice by reference to the accompanying drawing, in which :-
Figure 1 is a vertical section of an apparatus for moistening air constructed
according to the Specification of my said former Patent and shewing my present
improvements applied thereto :
Figure 2 is a vertical section illustrating a modification of the atomizing cone in
which the ring of rods is secured to a prolongation of a movable rod which carries
the ball, the latter being placed over the atomizing cone :
Figure 3 is a section taken on the line X X of Figure 1:
Figure 4 is a horizontal section through the tangentially arranged openings of
the nozzle:
Figure 5 is a plan illustrating a further modification in the construction of the
ring of rods.
3
The letters D, o', F, l, r, k, o, u, v, n, m, r¹, s, g, t, f¹, i, f, I, b¹, H, J, V, E, E¹,
a, e, c¹, d, d¹, a, b, A, c, C, w, L, e², e³, k, e², e, eª, M, P, y, N, z, c², c³, c', c², a¹, k, M
indicate the same parts as in the Specification of my said former Patent.
S is the ring of rods which I now arrange below the support A of the nozzle
and of the atomizing cone C, which ring of rods may be connected with the annular
piece or ring A in any suitable way. This ring of rods S may, as shewn in
Figures 1 and 3, consist of concentric rods (preferably of metal bars or wire) the
same being suitably connected to each other and to the ring so, the latter being
secured by means of a pressure screw to a rods which is screwed into the nut
of the support A so that after loosening the screws the ring of rods S may be
moved nearer to or foutham
A
1

page_text: The spray of water produced round the cone C together with the streams of
water which have escaped atomization, strikes against the ring of rods S which is
thus made to contribute to the atomization of the water.
If the ball to be attached to an adjustable rod e', Figure 2, the ring of rods is
preferably placed upon a prolongation of the rod, as shewn in Figure 2.
In the modified construction shewn in Figure 5, the ring of rods consists of
radially arranged rods which are connected with each other by means of an annular
bar secured to the ring s¹.
As is shewn in Figures 1 and 4, the openings a", all through which the water
under pressure enters the nozzle B₁ are tangentially arranged so that in the nozzle
the water assumes a whirling movement; this movement, as is well known, being
favourable to the atomization of the water as it leaves the nozzle.
In the present case, however, the exit opening of the nozzle is situated in a
hemispherical cavity a², the purpose of which is to concentrate the issuing jets of
water upon the ball to and the cone C, and thus to effect their atomization. The
whirling motion of the water, at its exit, does indeed tend to scatter drops of
water round the openings of exit of the nozzle B' in a lateral direction, so that by
the application of the hemispherical cavity a' this lateral distribution of the drops
of water is prevented and the drops are forced to atomize themselves on the ball w
or cone C.
It has also been shewn by experiment that, if a hole x which is vertical and lies
in the prolongation of the vertical axis of the aperture of exit of the nozzle be
arranged in the ball w or the cone C so that the stream of water which issues
vertically from the nozzle may strike upon the water which collects in this hole
when the apparatus is at work, the atomization is favoured, or the apparatus imparts
more water in the same period of time to the air which is passed through it.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
1. In an apparatus for moistening air, with a nozzle arranged over an atomizing
cone, the application of a ring of rods S below the atomizing cone C, with the
object of causing the jets of water which are not atomized upon the latter to be
atomized by their impingement upon the rods of this ring S, substantially as set
forth.
2. In an apparatus for moistening air with a nozzle arranged over an atomizing
cone, the application of a hemispherical cavity a' around the apertures of exit of the
nozzle into which the water enters through tangentially arranged openings a", a",
with the object of avoiding the lateral distribution of drops of water, and of
effecting their atomization by this means, substantially as set forth.
3. In an apparatus for moistening air with a nozzle arranged over an atomizing
cone, providing the said cone C or the ball w which is situated over it with a hole a
placed vertically in the axis of the aperture of exit of the nozzle, with the object
of allowing the jets which issue vertically from the nozzle to impinge upon the
surface of the water which collects in the hole when the apparatus is at work,
substantially as set forth.
4. The improved apparatus for moistening air hereinbefore described and
illustrated in the accompanying drawing.
D
1
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.