Improvements in the Mode of and Apparatus for Applying Disinfectants.
Year: 1898

page_text: Improvements in the Mode of and Apparatus for Applying
Disinfectants.
I, KARL AUGUST LINGNER, of the Firm Dresdener Chemisches Laboratorium
Lingner, of 24, Nossenerstrasse, Dresden, Saxony, Chemist, do hereby declare
the nature of this invention to be as follows:
-
This invention has reference to the application of disinfectants for the disin-
fection of rooms or spaces of various kinds and the invention consists essentially
in submitting the disinfectant in a receptacle provided with one or more atomiz-
ing nozzles to the pressure of any gaseous pressure medium, which is led from
a pressure generator or pressure accumulator separate from the receptacle and
exerts pressure upon the disinfectant. The pressure medium in this case not
only exercises a propelling action upon the disinfectant but also effects its
atomization.
If the disinfectant is a liquid which becomes reduced to vapor by heat and
transformation it can itself be employed as the pressure medium, since it becomes
vaporized in the pressure generator by the heat and in this condition passes
over into the receptacle to act on the surface of the contents of the receptacle.
If the disinfectant cannot be subjected to the direct action of heat, the pres-
sure medium may be steam which is developed in the pressure generator and
then passes over into the receptacle to act on the surface of the disinfectant
therein.
If the employment of heat be excluded that is to say, if the pressure medium
must be cool, the pressure generator can serve as an accumulator, in which
compressed air, carbonic acid &c. is stored and led over into the container to
produce atomization of the disinfectant.
In all cases the pressure medium produces pressure upon the substance serv-
ing for the disinfection, and it has a two fold action, driving the disinfectant
out of the container through one or more nozzles and atomizing it at the instant
of its exit.
An important feature of the apparatus for carrying the method into effect is
that the disinfectant driven by the pressure medium up through tubes is dis-
charged into an atomizing chamber into which chamber the pressure medium
likewise enters direct, atomizes the disinfectant as it issues in a fine jet, and
escapes with same through a fine orifice to disinfect the surrounding space.
The atomizing chamber may be so arranged that the disinfectant is more or
less atomized according to its nature.
I will proceed to describe an apparatus adepted for atomizing in accordance
with the method hereinbefore described in which there is employed as the disin-
fectant a liquid which is substantially unaffected by the prejudicial influence
of steam under pressure upon its surface.
There is therefore in this case used as the pressure generator, a generator for

page_text: steam under pressure, which steam passes over into the liquid container and
here acts to drive out the disinfecting liquid as well as to atomize the same.
A burner is arranged beneath a steam generator both being of annular form
and surrounding the liquid container. The pressure generator may be however
in any desired position with respect to the liquid container. The steam generator
is in communication with the container by one or more tubes in such manner
that the steam developed enters the container at the upper part of same above
the level of the liquid therein. The container is provided with a safety valve
and with a filling aperture and stopper.
Further a number of tube supports adapted to be closed by means of screw
stoppers are disposed upon the top of the container, and into these supports the
atomizing tubes are fixed. For this purpose the supports are provided with
internal screw threads into which is screwed an externally threaded collar on
the tube.
The tube terminates at its upper end in a fine jet and the screw stopper is
provided with a fine orifice. The collar is also provided with an orifice, so
that the steam led under pressure (about 05 atmosphere) into the container
can pass through the orifice into the chamber formed in the stopper around the
jet of the tube. Thence the steam escapes through the fine orifice of the stopper.
Since the steam in the container at the same time exerts pressure upon the
liquid to be atomized, the liquid passes upwards through the tube (or through
several of such tubes) and is driven in a fine jet out through the fine orifice,
atomized in the chamber above referred to by impact against the sloping sur-
faces of the stopper under the influence of the steam, and passes with the
steam through the fine orifice of the stopper.
The degree of fineness of the atomized liquid will be regulated by the distance
between the jet of the tube and the exit orifice in the stopper. If the collar
be screwed by means of a key further into the thread, the chamber is enlarged
and a finer atomization results; if the collar be screwed in the contrary direc-
tion the jet of the tube approaches the orifice in the stopper and a coarser mist
of liquid will issue therefrom.
Dated this 16th dow of Vouch 1000
J. C. MEWBURN & ELLIS,
55 and 56, Chancery Lane, London,
Chartered Patent Agents.
Improvements in the Mode of and Apparatus for Applying
Disinfectants.
I, KARL AUGUST LINGNER, of the Firm Dresdener Chemisches Laboratorium
Lingner, of 2-4, Nossenerstrasse, Dresden, Saxony, Chemist, 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 has reference to the application of disinfectants for the disin-
fection of rooms and such like enclosed spaces.
For the thorough disinfection of rooms and the like it is of the greatest import-
ance that the disinfectant employed shall be extensively and actively distributed
throughout the room or other space to be disinfected, as only in this way can
a thorough disinfection of all parts of the room be obtained.
This invention consists essentially in submitting a disinfectant in a receptacle

page_text: or container provided with one or more atomizing nozzles to the pressure of
steam from a steam boiler in such a manner that the steam not only exercises
a propelling action upon the disinfectant but also effects its atomization with
the result that the steam together with the atomized disinfectant fills the room
as it were with a fog, whereby the room is efficiently disinfected in every part.
In apparatus for carrying the present invention into effect the disinfectant
contained in a suitable receptacle is driven out by steam supplied from a steam
generator up through tubes and is discharged into the chamber of an atomizing
device into which chamber the steam likewise enters direct, atomizes the disin-
fectant as it issues in a fine jet, and escapes with same through a fine orifice to
disinfect the surrounding space which it fills with a fog. It is important that
the steam should be generated continuously and in abundance.
The atomizing devices are so constructed that the disinfectant can be more or
less atomized as required.
I will proceed to describe with reference to the accompanying illustrative
drawings one form of apparatus adapted for atomizing in accordance with the
method hereinbefore described in which there is employed as the disinfectant
a liquid which is substantially unaffected by the action of steam under pressure
upon its surface. In the drawings :-
1
Figure 1 is an elevation of the apparatus partly in vertical section.
Figure 2 is a plan of the same.
Figure 3 is a detail view on a larger scale showing an atomizing device in
vertical section.
A heating burner a (adapted to burn alcohol and the like) is arranged
beneath a steam generator 6 both being of annular form and surrounding the
container c that contains the liquid disinfectant. The steam generator may be
however in any desired position with respect to the container c. The steam
generator bis in communication with the container c by means of tubes & in
such manner that the steam developed in the generator enters container c at
the upper part of same above the level of the liquid disinfectant therein. The
container is provided with a safety valve e and with a filling aperture and
stopper f
A number of short tubes i adapted to be closed by means of screw stoppers h
are disposed upon the top of the container c and into these short tubes the
tubes are fixed. For this purpose the short tubes are provided with internal
screw threads into which are screwed externally threaded collars b on the tubes k.
The tubes terminate at their upper ends in fine jet nozzles and the screw
stoppers are provided with fine orifices ». The collars are also provided
with orifices m so that the steam led under pressure (about 0-5 atmosphere) into
the container can pass through the orifices m into the chambers h¹ formed in
the stoppers around the jet nozzles of the tubes. Thence the steam escapes
through the fine orifices n of the stoppers h.
Since the steam in the container at the same time exerts pressure upon the
liquid disinfectant to be atomized the liquid disinfectant passes upwards through
the tubes and is driven in fine jets out through the fine orifices of the iet
nozzles of the tubes k, is atomized in the chambers h¹ by impact against the
sloping surfaces of the stoppers h under the influence of the steam, and passes
with the steam through the fine orifices n of the stoppers h.
The degree of subdivision of the atomized liquid will be regulated by the
distance between the jet nozzles of the tubes and the exit orifices in
the stoppers h. If the collars 7 be screwed by means of a key further into the
threads of the short tubes i. the chamber h¹ are enlarged and a finer atomiza-
tion results. If the collars / be screwed in the contrary direction the jet noz-
zles of the tubes k approach the orifices n in the stoppers h and a coarser mist
or fog of liquid will issue therefrom.
The directions of the tubes and the orifices n in the stoppers are preferably
made such, that besides the proper direction of the issuing jets of atomized

page_text: disinfectant and steam a whirling motion is created between said jets which
advantageously promotes the efficient distribution of the disinfectant in the room
to be disinfected.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:-
1. A mode of applying disinfectants for disinfecting rooms and the like en-
closed spaces, consisting in causing steam under pressure to act upon the surface
of a liquid disinfectant so as to eject the latter in a finely divided or atomized
state and in such a manner that the steam, together with the atomized disinfec-
tant issues in the form of fog or mist thereby causing a rapid and complete dis-
tribution of the disinfectant throughout the room or space to be disinfected in
the presence of voluminous quantities of divided fluid, substantially as described.
2. For carrying out the mode referred to in Claim 1, an apparatus comprising
an annular steam generator and an annular burner arranged around a container
for the liquid disinfectant, ipes connecting said steam generator and said con-
tainer above the level of the liquid disinfectant contained therein, tubes dipping
into the liquid disinfectant in the container and discharging into distributing
chambeat the upper ends of said tubes, the arrangement being such that the
steam issues with the disinfectant in a fog or state of fine subdivision or atomi-
zation, substantially as described and shown.
Tinted thin 14th 1
D
1000
J. C. MEWBURN & ELLIS,
55 and 56, Chancery Lane, London,
Chartered Patent Agents.