A Simple and Effectual Apparatus whereby Milk may be Sterilized or Rendered Absolutely Free from Disease Germs, and Adapted for Family Use.
Year: 1894

page_text: Date of Application, 19th May, 1894
Complete Specification Left, 18th Mar., 1895-Accepted, 4th May, 1895
PROVISIONAL SPECIFICATION.
A Simple and Effectual Apparatus whereby Milk may be Sterilized
or Rendered Absolutely Free from Disease Germs, and Adapted
for Family Use.
I THOMAS PATON HAWKSLEY Surgical Instrument Maker 357 Oxford Street,
London do hereby declare the nature of this invention to be as follows::-
66
"
or
This invention comprises means or methods of heating and sterilizing milk in
such manner that any disease germs which it may contain are effectually
destroyed and the objectionable flavor usually imparted to milk by "boiling
smoking" is thereby avoided. For this purpose I have constructed a tall oval
or other shaped saucepan with tightly fitting lid and a raised platform or grill
made of wire or perforated metal at the bottom, whereon a glass bottle containing
the milk rests and is kept in position, and allows free circulation of water around
it. In the lid is constructed an orifice with collar, into which is fitted a cork,
through this passes a thermometer enclosed in a glass tube which is in turn
protected from contact with the bottle by a suitable guard.
A well annealed glass bottle of convenient size is wholly or in part filled with
milk and the mouth closed with a plug of sterilized cotton wool or a rubber cork,
and then placed into the saucepan, which should be filled with cold water to the
same height as the milk. The lid with the thermometer is then put in its place
and the apparatus heated on a fire or stove until a temperature of 155°
Fahrenheit is indicated by the thermometer. It should then be removed from the
fire and kept covered for half an hour; or, if more convenient a temperature
of 150° may be. maintained for the same time but in no case must it exceed 155°.
It is then ready for use.
As I have in view the general convenience and portability of my apparatus
I make the handle in the form of a loop of wire which may be fixed, or hinged, so
as to enclose all within the limits of the outer vessel and its lid.
Mo 19th 1901
THOMAS PATON HAWKSLEY.
A Simple and Effectual Apparatus whereby Milk may be Sterilized
or Rendered Absolutely Free from Disease Germs, and Adapted
for Family Use.
I, THOMAS PATON HAWKSLEY, Surgical Instrument Maker 357 Oxford Street
London 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 comprises means or methods of heating and sterilizing milk in
such manner that any disease germs which it may contain are effectually destroyed
and the objectionable flavor usually imparted to milk by "boiling" or "smoking
ia therah avoided.
"

page_text: For this purpose I have constructed a tall oval or other shaped saucepan with
tightly fitting lid L and a raised platform or grill A made of wire or perforated
metal at the bottom, whereon a glass bottle B containing the milk rests and is
kept in position and allows free circulation of water around it. In the lid is
constructed an orifice with collar through which is passed a thermometer D
enclosed in a glass tube which is in turn protected from contact with the bottle or
saucepan by a suitable guard G.
A well annealed graduated glass bottle of convenient size is wholly or in part
filled with milk and the mouth closed with a plug of sterilized cotton-wool or a
rubber cork or cap, and then placed in the saucepan which should be filled with
cold water to the same height as the milk.
The lid with the thermometer is then put in its place and the apparatus heated
on a fire or stove until a temperature of 155° Fahrenheit is indicated by the
thermometer. It should then be removed from the fire and kept covered for half
an hour or if more convenient a temperature of 150° F. may be maintained for the
same time, but in no case must it exceed 155°.
As the lower stratum of milk after heating and cooling, does not possess the
proper nutritive value required in an infants' food, I have designed a glass &
rubber tube syphon S by which the lower stratum may be withdrawn.
As my apparatus is principally used for preparing cows' milk into a form of
food suitable for infants and as frequently more than one infant requires providing
for, I make the apparatus in a double form, so that two bottles of milk may be
sterilized at the same time, the heat being generated by an ordinary fire, or gas
or spirit stove.
Having thus described the nature of my invention, I ask the protection of a
Patent for the following claim :-
For a simple and precise apparatus with attached thermometer for sterilizing
milk as a food for infants and invalids and a syphon for withdrawing the milk
which has lost its cream in the process.
Dated this Eighteenth day of March 1895.
THOMAS PATON HAWKSLEY.