Apparatus for Disinfecting Objects by the Direct Action of Steam.
Year: 1896

page_text: Date of Application, 25th July, 1896
Complete Specification Left, 9th Apr., 1897-Accepted, 12th June, 1397
PROVISIONAL SPECIFICATION.
Apparatus for Disinfecting Objects by the Direct Action
of Steam.
I, AUGUSTO RASTELLI of No. 4 Vin Belvedere, Turin, Italy, Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to an apparatus for disinfecting objects by means of moist
steam with or without circulation of the steain and either under high or low
pressure.
I will describe the said apparatus with reference to the accompanying drawings, in
which Fig. 1 shews a side view partly in section, and Fig. 2 a cross section. It
consists mainly of a cylindrical disinfecting chamber A, having a hermetically close-
able door at each end, a steam boiler B, which is situated in the lower part of
chamber A, a fire place F, and a carriage C containing a rotatable cylindrical
receptacle, in which are placed the articles to be disinfected.
As steam is produced in the boiler, it issues freely therefrom into the chamber A
through two slots situated in the top parts of the boiler, between the shell thereof and
the sides of the chamber A. A cock G serves to discharge the air from the disinfecting
chamber at the commencement of each operation. This air is forced downward by
the steam which in issuing from the boiler at once occupies the uppermost part of the
chamber, and it issues thence through two openings such as u Fig. 1, placed at the
lowest point. From these openings the air is led through pipes QQ to the cuck G
whence it passes through pipe r to the underside of the fire-grate F. When the air is
almost completely discharged from the chamber A, the steam follows the same course.
The thermometer T fixed on the cock G serves firstly for indicating the temperature
of the issuing air and then that of the steam.
The revolving receptacle of the carriage U is of cylindrical form built up of special
tinned bars, entirely surrounded by a metallic network also tinned, and it is carried by
a framing of iron bars I I, on which are formed the supports b b for the trunnions of
the cylinder, and on which the latter can either revolve or turn backwards and forwards
within the frame II. The revolving cylinder is divided longitudinally and opens and
closes on hinge-joints, like a box, and by means of two moveable partitions there may
be formed three compartments in its interior.
From the centres of the two end plates of the cylinder project outwardly two
trunnions a a which hear upon the supports bb of the frame I. One of the trunnions a
has its extremity formed as a pyramidal frustrum, which can fit into a socket g of
corresponding form, fixed to a small axis a passing through a stuffing box D fixed to
the centre of one of the end doors of the chamber A. When shutting this door, the
socket engages with the frustrum of the axis a, so that on then turning the axis n the
cylinder of the carriage will be rotated. Such rotation or oscillation can be effected
by means of a hand-wheel v, this being effected while the doors of the chamber A are
closed and this is charged with steam.
The above means of rotation are only described as an example, as various other
known devices such as toothed gearing, or a crank actuated by a motor may be
employed for the purpose.
The frame II is carried by four wheels running on two rails fixed on the interior
f the chamber A, which can be connected with external rails at each end of the

page_text: chamber, for the introduction and removal of the carriage C into and from the
disinfecting chamber A. The pressure gauge M and the safety valve V serve
respectively for indicating the pressure of the steam and for preventing such pressure
from exceeding a certain limit.
The boiler B can be supplied with water during the interval between two
disinfecting operations, by means of a funnel i and cock H.
The feed can however also he effected during the disinfecting operation by means
of a force pump. R is a cock for discharging the contents of the boiler B.
Dated this 25th day of July 1896.
ABEL & IMRAY,
Agents for the Applicant.
Apparatus for Disinfecting Objects by the Direct Action
of Steam.
I, AUGUSTO RASTELLI, of No. 4 Via Belvedere, Turin, Italy, Engineer, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement :-
This invention relates to an apparatus for disinfecting objects by means of moist
steam with or without circulation of the steam and either under high or low
pressure.
I will describe the said apparatus with reference to the drawings accompanying
my Provisional Specification, in which Fig. 1 shews a side view partly in section, and
Fig. 2 a cross section. It consists mainly of a cylindrical disinfecting chamber A
baving a hermetically closeable door at each end, a steam boiler B, which is situated
in the lower part of chamber A, a fire place F, and a carriage C containing a rotatable
cylindrical receptacle, in which are placed the articles to be disinfected.
As steam is produced in the boiler, it issues freely therefrom into the chamber A
through two slots situated in the top parts of the boiler, between the shell thereof and
the sides of the chamber A. A cock G serves to discharge the air from the disinfecting
chamber at the commencement of each operation. This air is forced downward by
the steam which in issuing from the boiler at once occupies the uppermost part of the
chamber, and it issues thence through two openings such as u Fig. 1, placed at the lowest
point. From these openings the air is led through pipes to the cock G when it
passes through piper to the under-ide of the fire-grate F. When the air is almost
completely discharged from the chamber A, the steam follows the same course. The
thermometer T fixed on the cock G serves firstly for indicating the temperature of
the issuing air and then that of the steam.
The revolving receptacle of the carriage is of cylindrical form built up of tinned
bars, entirely surrounded by a metallic network also tinned, and it is carried by a
framing of iron bars II, on which are formed the supports b for the trunnions of
the cylinder, and on which the latter can either revolve or turn backwards and
forwards within the frame I I. The revolving cylinder is divided longitudinally and
opens and closes on hinge joints, like a box, and by means of two moveable partitions
there may be forumed three compartments in its interior.
From the centres of the two end plates of the cylinder project outwardly two
trunnions a a which bear upon the supports of the frame I. One of the
trunnions a has its extremity formed as a pyramidal frustrum, which can fit into a
socket 9 of corresponding form, fixed to a small axis n passing through a stuffing
box D fixed to the centre of one of the end doors of the chamber A.
When

page_text: shutting this door, the socket engages with the frustrum of the axis a, so that on
then turning the axis n the cylinder of the carriage C will be rotated. Such rotation
or oscillation can be effected by means of a hand-wheel v, this being effected while
the doors of the chamber A are closed and this is charged with steam.
The above means of rotation are only described as an example, as various other
known devices such as toothed gearing, or a crank actuated by a motor may be
employed for the purpose.
The frame II is carried by four wheels running on two rails fixed on the
interior of the chamber A, which can be connected with external rails at each end of
the chamber, for the introduction and removal of the carriage C into and from
the disinfecting chamber A. The pressure gauge M and the safety valve V serve
respectively for indicating the pressure of the steam and for preventing such
pressure from exceeding a certain limit.
The boiler B can be supplied with water during the interval between two
disinfecting operations, by means of a funnel i and cock H.
The feed can however also be effected during the disinfecting operation by means
of a force pump. R is a cock for discharging the contents of the boiler B.
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. In apparatus for disinfecting objects by the direct action of steam, a
cylindrical carriage or similar receptacle such as C within which are placed the
objects to be disinfected, either with or without the interposition of gratings, or the
like and which is subjected within a closed casing to the action of steam which
surrounds it on all sides and penetrates through the materials contained therein,
substantially as herein described.
2. Apparatus for disinfecting objects by the direct action of steam, consisting of
a casing or chamber A having in its lower part a steam generator B, into which
casing is introduced a cylindrical receptacle C, containing the materials to be
disinfected, such receptacle being so supported and operated by means of a shaft
passing through the casing to the outside that it can be rotated or have a reciprocating
rotary motion imparted to it from the outside while at the same time its contents are
subjected to the action of steam from the generator B, substantially as described.
3. Apparatus for disinfecting objects by the direct action of steam, combined and
operating as herein described with reference to the drawings.
Dated this 9th day of April 1897
ABEL & IMRAY,
Agents for the Applicant.