Improvements in Apparatus employed for Disinfecting Clothing and other Materials.
Year: 1890

page_text: Date of Application, 20th Nov., 1890
Complete Specification Left, 13th Aug.. 1891-Accepted, 31st Oct., 1891
PROVISIONAL DI MULTIVATION.
Improvements in Apparatus employed for Disinfecting Clothing
and other Materials.
I WILLIAM WARNER of Hope Drive The Park, Nottingham in the County
of Nottinghamshire, Civil Engineer do hereby declare the nature of this invention
to be as follows:-
The object of the present invention is to provide a means of drying the clothing
and other materials, which have been subjected to steam disinfection, by the use of
hot air, also to better prepare the clothing and other materials, by hot air, before
they are acted upon by steam and to assist the steam process of disinfection.
The method of drying wearing apparel, bedding, and other materials, which
have been subjected to steam disinfection, is performed either by leaving them
inside the apparatus a short time after penetration, to be dried by the heat derived
from the casing, as in Lyon's apparatus or by producing hot air from the back
of an iron plate, which is acted upon by heat from a fire on the other side as in
Goddard's apparatus.
My invention consists in constructing an hot air heating vessel in connection
This vessel is
with the disinfecting chamber, whereby air is heated by steam.
similar in construction to what are known as boiler water heaters and its action is
similar, with the exception, that air is drawn either through or outside the surface
of tubes or coils in the place of water.
The casing is made of iron or other metal, capable of standing steam pressure,
with openings for the admission of steam and air, also outlets for the hot air and
drain water.
Air may be drawn from inside or outside the building and made to pass through
the tubes or coil or over the outside surface of the tubes or coil, into a pipe.con-
nected with the inside of the disinfecting chamber. The amount of heating
surface is determined according to the temperature of air required and size of
apparatus.
On the other side of the tubes or coil a supply of steam is kept up from the
steam boiler and the water produced through condensation allowed to pass by means
of drain cocks or steam trap.
An exhauster is attached to the exit from the disinfecting chamber or the air
may be drawn through by other well known means employed in creating a current
of air, so that the air, (after increase of temperature by steam heat) may be drawn
through the chamber and thus come into contact with the materials under treatment
inside the disinfecting chamber.
Thus atmospheric air is raised in temperature by contact with the surface of
iron or metal tubes which are heated by steam in contact on the other side of
them.
The current of hot air thus produced may be used to prepare the clothing and
other materials before steam is passed into them, and save loss through partial
condensation of steam in the clothing, and the hot air current again applied during
the process, to facilitate penetration, and at the end of the process the hot air is
again passed through the chamber to dry the materials and leave them in such
condition to be worn without further drying, thus the whole process is completed
inside the disinfecting chamber.
TV Adin 15th day of November 1800

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus employed for Disinfecting Clothing
and other Materials.
I WILLIAM WARNER of Hope Drive, The Park, Nottingham, in the County
of Nottinghamshire, Civil 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: --
The object of the present invention is to provide a means of drying the
clothing and other materials, which have been subjected to steam disinfection by
the use of hot air, also to better prepare the clothing and other materials
by hot air before they are acted upon by steam, and to assist the steam process of
disinfection.
The method of drying wearing apparel bedding and other materials, which have
been subjected to steam disinfection is performed either by leaving them inside
the apparatus a short time after penetration, to be dried by the heat derived from
the casing, as in Lyon's apparatus or by producing hot air from the back of
an iron plate, which is acted upon by heat from a fire on the other side as in
Goddard's apparatus.
My invention consists in constructing an hot air heating vessel in connection
with the disinfecting chamber, whereby air is heated by steam. This vessel is
similar in construction to what are known as boiler water heaters and its action is
similar, with the exception that air is drawn either through or outside the surface
of tubes or coils in the place of water.
The casing is made of iron or other metal, capable of standing steam pressure,
with openings for the admission of steam and air, also outlets for the hot air and
drain water.
Air may be drawn from inside or outside the building and made to pass through
the tubes or coil or over the outside surface of the tubes or coil into a pipe con-
nected with the inside of the disinfecting chamber.
The amount of heating surface is determined according to the temperature of
air required and size of apparatus. On the other side of the tubes or coil a supply
of steam is kept up from the steam boiler and the water produced through con-
densation allowed to pass by means of drain cocks or steam trap.
An exhauster is attached to the exit from the disinfecting chamber or the air
may be drawn through by other well known means employed in creating a current
of air, so that the air (after increase of temperature by steam heat) may be drawn
through the chamber and thus come into contact with the materials under treatment
inside the disinfecting chamber.
Thus atmospheric air is raised in temperature by contact with the surface of
iron or metal tubes, which are heated by steam in contact on the other side of
them. The current of hot air thus produced, may be used to prepare the clothing
and other materials before steam is passed into them, and save loss through partial
condensation of steam in the clothing, and the hot air current again applied during
the process, to facilitate penetration, and at the end of the process the hot air is
again passed through the chamber to dry the materials and leave them in such
condition to be worn without further drying, thus the whole process is completed
inside the disinfecting chamber.
In the accompanying drawing
Fig. 1 represents a sectional elevation of the apparatus through the disinfecting
chamber and hot air heater and
Fig. 2 represents a sectional plan of the disinfection chamber and plan of the
heater.
a is the inside of the disinfecting chamber, where clothing under treatment is
placed,, cavity between boiler shells, which contains water and steam, when the

page_text: apparatus is in use, c, the furnace for generating steam, d the inlet for air at the
back of flue, e the flue and flue plate against which the products of combustion rub
and heat the air, the cavity for air passing along the heated surface of flue
plate, valve in connection with outlet for heated air passing into disinfecting
chamber when heated by flue heat, safety valve to boiler g steam pipe to feed
exhauster through valve, h, and feed disinfecting chamber through valve, k, and
also feed coil heater through valve, i.
The pipe with valve, is placed to take off drain water through condensation of
steam, l, is the coil case containing steam surrounding the coil, m. The coil case
may contain straight tubes instead of a coil, the action being exactly the same,
», represents the air inlet to coil and, o, the outlet after the air is heated, having a
valve, p, to allow the heated air to pass into the disinfector chamber; s, represents
a drain pipe to take off condensed water from the heater; t, is an exhauster to
draw the air through the chamber and, the exhaust pipe leading to the outside
of the building, , is the outlet for hot air after acting upon the clothing and, w, a
valve to regulate the current of either air or steam when exhausting, a, represents
the chimney taking off products of combustion from the furnace.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is-
1. The disinfecting apparatus arranged or constructed as illustrated in the
accompanying drawings.
Dated this 12th day of August 1891.
WILLIAM WARNER.