Improvements in the Treatment of Milk.
Year: 1887

page_text: Date of Application, 17th Mar., 1887
Complete Left, 2nd Aug., 1887
Complete Accepted, 28th Oct., 1887
Improvements in the Treatment of Milk.
I, WILLIAM LLOYD WISE, of No. 46, Lincoln's Inn Fields, in the County of
Middlesex, Consulting Engineer and Patent Agent, do hereby declare the nature of
this invention (a communication to me from abroad by Carl Abraham Wahlin
of 57, Gref. Thuregatan, Stockholm, in the Kingdom of Sweden, Merchant, Abraham
Forssell, of 15, Villagatan, Stockholm, aforesaid, Intendant, and Fredrik Leonard
Enquist, of 21, B. Kommendörsgatan, Stockholm, aforesaid, Engineer,) to be as
follows:-
The object of this invention is to impart to milk, immediately after the milking, the
property of remaining sweet, and fresh, and fit for use in its unskimmed state whether
it be transported by cart or by other conveyance, or whether it be left standing during
several days. The method of treatment is as follows:-The milk, warm from the cow,
is cooled down in any suitable way as quickly as possible to a temperature of between
+4° and 0° C, and is at the same time gently and uninterruptedly stirred, the stirring
being continued during about an hour. The stirring is effected by means of a suitable
appliance worked by hand or power. If the quantity of milk to be treated requires
many vessels, the stirrers may be connected to a shaft actuated either by hand or
power.
The stirring appliance is constructed and operated in such a way that it imparts to
the milk principally an up and down motion in the vessel, and not only a circular
motion. The stirring carried on beneath the surface of the milk, in order not to
cause the admission of more air to the liquid.

page_text: COMPLETE SPECIFICATION.
Improvements in the Treatment of Milk.
1, WILLIAM LLOYD WISE, of No. 46 Lincolns Inn Fields, in the County of
Middlesex, Consulting Engineer and Patent Agent, do hereby declare the nature of
this Invention (a communication to me from abroad by Carl Abraham Wahlin
of 57 Gref. Thuregatan, Stockholm, in the Kingdom of Sweden, Merchant, Abrahain
Forssell, of 15 Villagatan, Stockholm, aforesaid, Intendant, and Fredrik Leonard
Enquist, of 21, B. Kömmendorsgatan, Stockholm, aforesaid, Engineer,) 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 this Invention is to impart to milk, immediately after the milking, tho
property of remaining sweet and fresh, and fit for use in its unskimmed state, whether
it be transported by cart, or by other conveyance, or whether it be left standing during
several days. The methiod of treatment is as follows:-The milk, warm from the cow
is cooled down in any suitable way as quickly as possible to a temperature of between
+4° and 0° C, and is at the same time gently and uninterruptedly stirred, the
stirring being continued during about an hour. The stirring is effected by means of
a suitable appliance worked by hand or power. If the quantity of milk to be treated
requires many vessels, the stirrers may be connected to a shaft actuated by hand or
power.
The stirring appliance is constructed and operated in such a way that it imparts to
the milk principally an up and down motion in the vessel, and not only a circular
motion. The stirring is carried on beneath the surface of the milk, in order not to
cause the admission of more air to the liquid.
Having now particularly described and ascertained the nature of the said
invention, and in what manner it is to be performed, I declare that what I claim is :-
The process substantially as hereinabove described for causing milk to remain sweet
and fresh for a considerable time, and which consists in rapidly cooling the milk
immediately after the milking down to between +4° and 0° C., and in stirring it
gently and continuously during about an hour, substantially as set forth.
Dated this 2nd day of August 1887.
W. LLOYD WISE,
Per F. J. Brougham.