Improvements in the Construction and Arrangements of Purifying and Disinfecting Apparatus.
Year: 1892

page_text: Date of Application, 9th Apr., 1892
Complete Specification Left, 7th Jan., 1893-Accepted, 29th Apr., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Construction and Arrangements of Purifying
and Disinfecting Apparatus.
I HENRY CHARLES WARTER BALDWIN of Abercarne Villa Henry Road East
Barnet in the County of Hertfordshire Mechanical Engineer do hereby declare the
nature of this invention to be as follows:-
The apparatus consists of a cylindrical or elliptical steam and water jacketted
chamber of galvanized wrought iron, steel, copper or other suitable material having
luted steam tight doors at each end either steam jacketted or double bodied and
packed with nonconducting material to prevent loss of heat by radiation and
condensation, it is fitted with a perforated or slotted distributor pipe along whole
length of top to equalize admission of steam to all parts to obtain uniformity of
temperature throughout, this pipe is also fitted with a bye pass and valve to form
air relief and ventilating pipe the bottom of the chamber is fitted with a slotted
duct running the whole length fitted with ejector and full way valve and pipe to
carry off air at entry of steam, water as condensed and to admit air for drying off.
In cases where steam is available from any source: the treating chamber is
enclosed in an ordinary steam jacket, arranged with valves and gauges to admit
steam to same and chamber at varying temperature.
When steam is not available the treating chamber is enclosed in an outer shell
forming a high pressure steam generator or boiler, and arranged with either internal
flue tube and furnace, or fired externally.
It is either arranged as a portable apparatus mounted on carriage and wheels for
traversing highways or as a stationary apparatus set in brickwork with fire brick
lined furnace and flues.
The action of the apparatus is as follows, the material to be disinfected is placed
inside the treating chamber and steam admitted into same after a short time the air
relief valve is opened to expel the air released from the article being treated: it is
then closed until the operation of disinfection is completed, when the steam is turned
off from the treating chamber, the air inlet in bottom and air relief valve in top
opened and air circulated through until the article treated is sufficiently dried by
same and the radiated heat from the jacket.
Another form of my invention consists of a rectangular, circular or elliptical
chamber, made of galvanized wrought iron, steel, copper or other suitable material,
arranged with luted steam tight and jacketted doors, with heat indicator, evaporating
trough in bottom, with feed water inlet and waste outlet, air inlet pipe and valve in
bottom: and air relief pipe and valve in top; it is heated either by means of a
furnace for burning coal, coke, wood or other fuel: or arranged for gas burners it
is enclosed in an iron casing or outer jacket forming flues for carrying off products
of combustion and hot air jacket to chamber.
:
The action of this apparatus is as follows, the evaporating trough having been
charged with water the article to be treated is placed inside the chamber, the fire
lighted or the gas ignited and the temperature of the chamber raised to the
required height, the water being evaporated and saturating the air, after a short
time the air relief valve is opened to expel the air released from the article being
treated, it is then closed until the operation of disinfection is complete, when the
water is removed from the evaporating trough by means of the waste pipe, and the
air inlet in bottom and air relief valve in top opened and air circulated through
chamber until the articles treated are sufficiently dry to be removed.
A third form of my invention consists of a rectangular chamber made of

page_text: galvanized wrought or cast iron or other suitable material, lined throughout with
refractory material to prevent loss of heat by radiation, fitted with internal gas burners
for heating, water trough for saturating air, double cased doors packed with non-
conducting material, heat indicator vent pipe & valve.
The action of this apparatus is as follows, the article to be treated is placed
inside the chamber, the water trough charged, the gas burners lighted and the doors
closed, the vent pipe being opened sufficiently to allow of free ventilation: and the
gas burners regulated to give the desired temperature, after the article has been
sufficiently long under treatment to be disinfected the water is drawn from the
trough, the burners regulated to lower temperature and the article dried off by the
heat from same.
Dated this 9th day of April 1892.
HENRY CHARLES WARTER BALDWIN.
COMPLETE SPECIFICATION.
Improvements in the Construction and Arrangements of Purifying
and Disinfecting Apparatus.
I HENRY CHARLES WARTER BALDWIN of Abercarne Villa Henry Road, East
Barnet in the County of Herts., 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 apparatus consists of
a. A cylindrical or elliptical steam and water jacketted chamber of galvanized
wrot iron, steel, copper or other suitable material having luted steam tight doors at
either or both ends: either steam jacketted or double bodied and packed with
nonconducting material to prevent loss of heat by radiation and condensation, it is
fitted with a perforated or slotted steam distribution pipe or channel along the
whole length of top of chamber to equalize admission of steam to all parts to obtain
uniformity of temperature thro'out, this pipe or channel is also fitted with bye pass
pipe and valve to form air relief and ventilation pipe, the bottom of the chamber is
fitted with a slotted duct running its whole length fitted with ejector and full
way valve and pipe to carry off air at entry of steam: water as condensed: and to
admit air for drying off, the steam for treating being generated by means of an
internal flue tube thro' water jacket fitted with furnace or a furnace external to
water jacket, with fire brick flues.
b. In cases where steam is available from any source the treating chamber is
enclosed in an ordinary steam jacket arranged with valves and gauges to admit
steam to same and chamber at varying temperatures.
c. It is either arranged as a portable apparatus mounted on carriage and wheels
for traversing highways or as a stationary apparatus set in brickwork with fire
brick lined furnace and flues.
The action of the apparatus is as follows, the material to be disinfected is placed
inside the treating chamber and steam admitted into same, the ejector and valve of
duct in bottom being opened until chamber is free from air: after the material
has been exposed to the action of the steam for a short time the air relief valve in
top is opened to release and expel the air from the article being treated it is then
closed until the operation of disinfection is completed when steam is turned off from
the treating chamber the air inlet valve in bottom and air relief valve in top opened
and air circulated thro' chamber until the articles treated are sufficiently dried
by the same and the radiated heat from the jacket.
Another form of my invention consists of a rectangular, circular or elliptical
chamber, made of galvanized wrot iron steel copper or other suitable material
arranged with luted steam tight and jacketted. doors with heat indicator,
evaporating trough in bottom with feed water inlet and waste, outlet, air inlet

page_text: pipe and valve in bottom, and air relief pipe and valve in top it is heated either by
means of a furnace for burning coal, coke, wood or other fuel, or arranged for gas
burners, it is enclosed in an iron casing or outer jacket forming flues for carrying
off products of combustion and hot air jacket to chamber, the action of this
apparatus is as follows the evaporating trough having been charged with water
the article to be treated is placed inside the chamber the fire lighted or the gas
ignited and the temperature of the chamber raised to the required height the water
being evaporated and saturating the air, after a short time the air relief valve is
opened to expel the air released from the articles being treated. It is then closed
until the operation of disinfection is complete when the water is drawn off from the
evaporating trough by means of the waste pipe, and the air inlet in bottom and air
relief valve in top opened and air circulated thro' chamber until the articles treated
are sufficiently dried to be removed.
A third form of my invention consists of a rectangular chamber made of
galvanized wrot iron or other suitable material lined thro-out with refractory
material and fitted with double cased doors packed with nonconducting material to
prevent loss of heat by radiation, fitted with internal gas burners, for heating water
trough for saturating air, heat indicator vent pipe and valve.
The action of this apparatus is as follows, the article to be treated is placed
inside the chamber, the water trough charged, gas burners lighted and the doors
closed, the vent pipe being opened sufficiently to allow of free ventilation: and the
gas burners regulated to give the desired temperature, and evaporate the water to
saturate the air. After the article has been sufficiently long under treatment to be
disinfected the water is drawn off from the evaporating trough the burners regulated
to lower temperature and the articles dried off by the heat from same.
I now proceed to describe the drawings Fig. 1. Sheet 1. is a transverse section :
and Fig. 2. Sheet 1. is a longitudinal section of a steam disinfecting apparatus.
A is the high pressure boiler, or steam generator, B. is the treating chamber, C is
the steam jacketted door, D is the sliding cage for containing articles to be treated,
E. is the steam connection from boiler to treating chamber, F. is the distributor,
G is the air circulator fitted with steam jet, H. is the air and condense extractor
and air inlet and circulator, I. furnace and flues, J brick setting, K grouting,
A 1. steam space and A 2. water space.
Fig. 1. Sheet 2. is a section of a saturated hot air apparatus, externally heated
by gas, coal, or other fuel, A is the treating chamber, B jacketted door, C exhaust
pipe and air circulator D. runners for sliding shelves, E combined evaporating
trough, air inlet pipe, service pipe, and waste, F. furnace, G. flues, H. non-
conducting jacket, and I brick-work.
Fig. 2. Sheet 2. is a section of an internally heated chamber, A. is the treating
chamber, B is the vent pipe and valve, C is the runners for shelves, D loose grated
bottom, E evaporating trough F. fire brick deflector, G. gas burner, H. glazed
brick enclosure, I glazed earthenware top, J. sand pad, K. stone coping.
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 as constituting the invention is
1. The combination of treating chamber with either internally or externally fired
high pressure boiler forming outer jacket to same.
2. The combination of air inlet air relief and circulating pipes and valves: and
steam jacketted doors with treating chamber with internally or externally fired
high pressure boiler forming outer jacket to same.
3. Combination of air saturator treated by means of coal, gas, steam, or high
pressure hot water pipes, with treating chamber.
4. Distribution and extraction pipes for equal distribution of steam in treating
chamber.
5. The combination and arrangement of inner and outer chamber, air inlet, air
relief, and circulating pipes, steam distribution pipes, jacketted doors and air

page_text: Baturator, substantially as and for the purposes hereinbefore described and set
forth.
In witness whereof I the said Henry Charles Warter Baldwin have hereunto
set my hand and seal, this the Seventh day of January in the year of
our Lord, One thousand eight hundred and ninety-three.
HENRY CHARLES WARTER BALDWIN.