An Improved Process for Reducing Suitable Substances into Vapours and Apparatus therefor.
Year: 1899

page_text: Date of Application, 8th July, 1899-Accepted, 19th Aug., 1899
COMPLETE SPECIFICATION.
An Improved Process for Reducing Suitable Substances into Vapours
and Apparatus therefor.
I, RICHARD FIEDLER, of the Firm of Transportabler, Dampfentwickler,
Geselschaft m. b. H of Neue Promenade 6, Berlin, C, Manufacturer, 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:-
Hitherto solid or liquid substances which could be reduced to vapour for
deodorizing, preservative or other purposes were treated with steam whereupon
the vapours escaped together with the steam. In many cases as for instance
when reducing camphor or naphthaline into vapour for use in fur stores, the
dampness caused by the condensed steam is very injurious to the goods, as it
promotes the formation of mould and the like. By means of the present
invention air only saturated with the vaporized matter or matters is led to the
required place.
The annexed drawing illustrates a form of construction of the improved
apparatus in which Fig. 1 is a perpendicular section and Fig. 2 an elevation.
The cylindrical part provided for the reception of a glowing metal or other
body is provided with a flange and bottom the whole being in one piece. This
cylinder has exteriorly a jacket a' for preventing loss of heat and also carries
a suitably shaped foot or base for its safe support. This foot can be produced in
one piece by stamping or the like.
The cylinder a is at its upper part provided with a screw thread into which
a suitably threaded dished cap can be screwed. This cap c serves for the
reception of the substances to be vaporized and possesses in its centre an upward
projection or tuber provided on the top with a plate and with lateral openings.
The dished cape is closed by means of a suitable shaped cover h which can be
fastened on the same by suitable connection of their respective borders, as illus-
trated for instance. The cover is provided with an opening h¹, which can
be closed for the introduction of the substances to be vaporized, into the cap c
and also with an outlet opening o for the air saturated with the vapours, and
possesses moreover a handle which serves both for carrying the whole apparatus
and for screwing the cap c on or off the cylinder a.
Between the flange of the cap c and the cylinder a washer is inserted. Into
the bottom of the cylinder a an air pipe passes.
Into the cylinder a a body b is inserted which is first heated to glow point
in a fire and which is provided with an opening for the purpose of better
handling.
The air inlet pipe / communicates with an air blast machine g of any con-
struction by means of an india rubber pipe or in any other suitable manner.
The manner of working of the apparatus is as follows:-
After the glowing body 6 has been inserted in the cylinder a the latter is
closed by the dished cap e provided with the cover h; into the dished cap c
substances to be vaporized are introduced through the opening h¹.

page_text: The blast machine is then put in action and forces the air through the pipe /
into the cylinder a where it is forced to pass over the walls of the glowing body
in order to pass into the cap c. By means of the glowing body the cap c and
the substances therein contained are brought to a very high temperature. The
air considerably heated passes into the central tube and comes against the
abutment plate whereby it is guided downwards and is forced to pass through
the openings or slots and passes over the substances also highly heated. Hy
this means the air current is saturated with the vapours from the substances
chosen according to the different purposes for which they may be required, and
can be brought by means of a hose arranged on the outlet opening to the desired
spot where it is to be used:
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. An improved process for vaporizing substances which can be reduced to
vapour, in which the substances to be vaporized are brought into a suitable vessel
and therein exposed to the heat radiated from a heated motal or other body
and a current of air passed through the vessel becomes saturated with the vapours
produced from the substances and is then forwarded through a pipe.
2. For the carrying out of the process as in Claim 1 an apparatus consisting
of a cylinder a, provided with a mantle a¹ and air inlet, for receiving a glowing
body b; this cylinder being closed by a dished cape for receiving the substances
to be vaporized.
Dated this 8th day of July 1899
HERBERT HADDAN & Co.,
Agents to Applicant,
18, Buckingham Street, Strand, London.