An Improvement in the Production of Butter and Apparatus therefor.
Year: 1890

page_text: Date of Application, 24th Sept., 1890
Complete Specification Left, 4th June, 1891-Accepted, 19th Sept., 1891
PROVISIONAL SPECIFICATION.
An Improvement in the Production of Butter and Apparatus
therefor.
I, THOMAS TOUSAINT WATSON, Assistant Locomotive Superintendent
G. I. P. Railway Jabalpur, Central Provinces of India do hereby declare the
nature of this invention to be as follows:-
My invention relates to the production of butter by the agitation of fresh unskimmed
milk effected by blowing air through it. I place the milk, in a vessel, preferably
of considerable depth, near the bottom of which there is a finely perforated pipe
connected to an air compressing pump, bellows or blower.
By forcing air through the pipe under sufficient pressure to make it bubble up
through the milk, butter becomes separated, leaving the milk fresh and sweet.
Instead of employing a perforated pipe, the vessel may be made with cavities in its
bottom or sides having their faces perforated, but it is generally preferable to
employ a perforated pipe which can be removed for cleansing purposes. In order
to increase the agitation and break up the ascending streams of air, perforated
diaphragms may be placed at various levels in the vessel, these being also by
preference removeable.
Dated this 24th day of September 1890.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improvement in the Production of Butter and Apparatus
therefor.
I, THOMAS TOUSAINT WATSON, Assistant Locomotive Superintendent G. I. P.
Railway, Jabalpur, Central Provinces of India, 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 :-
My invention relates to the production of butter by the agitation of fresh
unskimmed milk effected by blowing air through it.
I place the milk in a vessel preferably of considerable depth, near the bottom of
which there is a finely perforated pipe connected to an air compressing pump,
bellows or blower.
By forcing air through the pipe under sufficient pressure to make it bubble up
through the milk, butter becomes separated, leaving the milk fresh and sweet.
Instead of employing a perforated pipe, the vessel may be made with cavities in
its bottom or sides having their faces perforated, but it is generally preferable to
employ a perforated pipe which can be removed for cleansing purposes.
order to increase the agitation and break up the ascending streams of air,
perforated diaphragms may be placed at various levels in the vessel, these being
also by preference removeable.
In
The process and apparatus above described might be applied to production of
butter from cream, but as this would involve the preliminary process of separating
the cream from the milk, it is preferable to treat unskimmed milk which may be
quite fresh and warm or may have become cool, in which latter case it is of advantage
to scald the milk and treat it at a temperature of 70° or 80° Fahrenheit.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The herein described process for production of butter by blowing air through
unskimmed milk.
2. For conducting the process above referred to, a vessel containing a perforated
pipe or having cavities with perforated faces connected to an air compressing pump,
bellows or blower, substantially as described.
To 1001
ABEL & IMRAY,
Agents for the Applicant.