for Disinfecting by Steam.
Year: 1886

page_text: Date of Application, 21st Dec., 1886
Complete Left, 21st Sept., 1887.
Complete Accepted, 21st Oct:, 1887.
RESERV
for Disinfecting by Steam.
FREDERICK GODDARD Engineer & Iron Founder Traffic Stroet Works Nottingham,
do hereby declare the nature of this invention to be as follows :-
This invention consists of an apparatus constructed for disinfecting articles of all
descriptions that are infected with the gerins of discease without damaging the most
delicate material.
The apparatus consists of a Wrought Iron, steel or other metal Boiler with a
suitable Furnace attached for burning Coal, Coke, gas, or liquid fuel of a section
similar to a jacketted pan with a loose cover lifted by chains & balance weights or
when more convenient and suitable for the various shapes that this apparatus can be
made a door hung on hinges. The inside forming the stove or oven into which the
infected articles are placed. The outside or jacket, forming the Boiler in which
steam is generated-it is fitted up with steam and water guages, Injector for water
supply, Dead weight safety valves &c. in the usual manner. Also a steam pipe with
cock and pipe for conveying steam to the interior stove or oven and a steam pipe and
cock for supplying steam to an exhauster. The cover or door of the apparatus is
made of either Wrought Iron, Steel, or Cast Iron, formed in such a manner as to
make a perfectly steam tight joint when closed and having a double case or jacket
into which steam or water is injected thereby making the whole of the outside casing
of the internal stove or oven of such a high temperature that no condensation of the
steam injected into it can take place. Attached to the cover, or door is a thermometer
for registering the temperature of the interior of the stove or oven-also a steam
guage for registering the steam pressure of the interior and an exhauster. The whole
of the outside of the apparatus or steam boiler, is cased in such a manner as to form
a hot air chamber from which a pipe with valve is fitted for conveying hot air into
the interior stove or oven.
The action of the Apparatus is us follows-A fire is lighted in the furnace and steam

page_text: raised in the boiler until it blows off at the safety valve-the Articles to be operated
upon are then put in, and the cover or door screwed down-when the cover has
become thoroughly hot steam is turned on, and remains on in direct contact with the
_articles to be disinfected when this is considered to be effectually done the steam is
turned off and the Exhauster put into action-also the valves opened for admitting
hot air from the air chamber which canses a strong current of hot dry air to pass
through the stove or oven which in a few minutes allows of the cover or door to be
opened and the articles treated to be taken out perfectly dry.
The Apparatus can be made portable.

page_text: for Disinfecting by Steam.
FREDERICK GODDARD Engineer and Ironfounder Traffic Street Works Nottingham
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 consists of an apparatus constructed for disinfecting articles of all
descriptions that are infected with germs of disease without damaging the most
delicate material.
The apparatus consists of a wrought iron, steel, or other metal boiler with a suitable
furnace attached for burning coal, coke, gas or liquid fuel, of a section similar to a
jacketted pan with a loose cover lifted by chains and balance weights or when more
convenient and suitable for the various shapes that this apparatus can be made, a door
or doors hung on hinges-the inside forming the stove or oven into which the infected
articles are placed, the outside or jacket forming the Boiler in which steam is
generated-it is fitted up with steam and water gauges, pump for water supply, dead
weight safety valve etc. in the usual manner, also a steam pipe with cock and
pipe for conveying steam to the interior stove or oven-and a steam pipe and cock
for supplying steam to an Exhauster. The cover or doors of the apparatus are made
of either wrought iron, steel or cast iron, formed in such a manner as to make a
perfectly steamitight joint when closed, and having a double case or jacket into whch
steam or water is injected thereby making the whole of the outside casing of the
internal stove or oven of such a high temperature that no condensation of the steam
injected into it can take place. Attached to the cover or doors is a Thermometer for
registering the temperature of the interior of the stove or oven, also a steam guage
for registering the steam pressure of the interior, and an Exhauster. The whole of
the outside of the apparatus or steam boiler is cased in such a manner as to form a
hot air chamber from which a pipe with valve is fitted for conveying hot air into the
interior stove or oven. The action of the apparatus is as follows: A fire is lighted
in the furnace and steam raised in the boiler until it blows off at the safety valve; the
articles to be operated upon are then put in and the cover or doors screwed down.
When the cover has become thoroughly hot, steam is turned on and remains on in direct
contact with the articles to be disinfected. When this is considered to be effectually
done the steam is turned off, and the Exhauster put into action also the valves opened
for admitting hot air from the hot air chamber which causes a strong current of hot
dry air to pass through the the stove or oven which in a few minutes allows the cover
or doors to be opened and the articles treated to be taken out perfectly dry.
The apparatus can be made portable.
In order that my said invention may be more clearly understood and readily carried
into effect, I will proceed aided by the accompanying drawing smore fully to describe
11

page_text: DESCRIPTION OF DRAWINGS.
Figure 1 is an Elevation of the apparatus and section.
A. is the internal Chamber, stove or oven into which the articles to be disinfected
are placed.
B. the steam boiler.
C. the hot air chamber.
D. the smoke flue.
E. the furnace.
F. the smoke pipe or chimney.
G. the Exhauster.
H. the cold air inlet to hot air Chamber.
I. Smoke pipe from flue attached to the smoke chamber forming the outside of the
apparatus.
a. dead weight safety valve.
b. Water gauge.
c. Steam gauge attached to boiler.
d. Steam gauge registering the pressure of steam in the internal chamber stove or
oven.
e. Ashpit.
f. flue passing underneath bottom of apparatus.
9. steam supply to exhauster.
Figure 2 is a plan of the apparatus and section.
A. B. C. D. E. F. G. as in Fig. 1.
J. is the hot air pipe and valve for inlet of hot air.
K. steam inlet.
a. denotes the direction in which the flue is taken underneath the bottom and into
the outside casing of the apparatus.
b. Water gauge.
c. doors of the apparatus opening on hinges (d).
e. being the steam connecting pipes from the boiler to the hollow space indoors.
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) That this is a self-contained steam disinfecting apparatus complete in itself
requiring no additional boiler.
(2) That when in work every portion of the walls of the chamber, stove or oven
are of an equal temperature to the steam so that they offer no condensing surface.
(3) An arrangement by which a current of hot air is passed into the chamber, stove
or oven after the steam has been exhausted so that all particlos of moisture are
driven off.
(4) That the doors of the apparatus are connected in such a manner that both steam
and water may circulate exactly the same as in the boiler.
Dated this Twentieth day of September One thousand eight hundred and
eighty seven.
FREDERICK GODDARD.