An Improvement in the Preparation of Rape-seed for Use as Food for Cattle and other Animals.
Year: 1894

page_text: Date of Application, 25th Jan., 1894
Complete Specification Left, 25th Oct., 1894-Accepted, 1st Dec., 1894
PROVISIONAL SPECIFICATION.
An Improvement in the Preparation of Rape-seed for Use as Food
for Cattle and other Animals.
We, ALFRED WILLIAM MACILWAINE, Managing Director of, and LEWIS
EDWARD COMMON, Chemist to, The Hull Oil-manufacturing Company, Limited,
of Stoneferry, Hull, in the County of York, do hereby declare the nature of this
invention to be as follows:-
This invention relates to the treatment of rape-seed, either previously or
subsequently to the extraction of the oil therefrom, with the object of rendering it
more palatable when used as cattle food.
In some descriptions of rape-seed, particularly the wild sorts, there exists a
bitter principle or flavouring matter which appears to be distinct from the essential
oils; the latter escaping during the process of treating the crushed seed with
volatile solvents and steam for the purpose of extracting the oil, whilst the former
is apparently not materially affected by such treatment.
We have found that this bitter principle or flavour, or the greater part of it,
may be removed with the aid of alcohol. We accordingly treat the crushed seed
or the cake (preferably in a finely divided state) or the meal (after having under-
gone treatment for the extraction of the oil by the solvent process) with alcohol.
The alcohol, at about its boiling point, is passed through the crushed seed, ground
cake or meal until the bitter principle or so much of it as may need to be removed
has disappeared. The alcohol is subsequently evaporated from the seed, cake or
meal, as also from the extract, by means of dry steam, the mass being at the same
time agitated, and ultimately the alcohol is condensed and recovered for re-use.
Dated the 25th day of January 1894.
G. G. M. HARDINGHAM,
191, Fleet Street, London, E.C., Chartered Patent Agent.
An Improvement in the Preparation of Rape-seed for Use as Food
for Cattle and other Animals.
We, ALFRED WILLIAM MACILWAINE, Managing Director of, and LEWIS
EDWARD COMMON, Chemist to, The Hull Oil-manufacturing Company, Limited,
of Stoneferry, Hull, in the County of York, 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 relates to the treatment of rape-seed, either previously or
subsequently to the extraction of the oil therefrom, with the object of rendering it
more palatable when used as cattle food.
In some descriptions of rape-seed, particularly the wild sorts, there exists a
bitter principle or flavouring matter which appears to be distinct from the essential
oils; the latter escaping during the process of treating the crushed seed with
volatile solvents and steam for the purpose of extracting the oil, whilst the former
is apparently not materially affected by such treatment.
We have found that this bitter principle or flavour, or the greater part of it,
may be removed with the aid of alcohol. We accordingly treat the crushed seed

page_text: or the cake (preferably in a finely divided state) or the meal (after having under-
gone treatment for the extraction of the oil by the solvent process) with alcohol.
The alcohol, at about its boiling point, is passed through the crushed seed, ground
cake or meal until the bitter principle or so much of it as may need to be removed
has disappeared. The alcohol is subsequently evaporated from the seed, cake
or meal, as also from the extract, by means of dry steam, the mass being at the
same time agitated; and ultimately the alcohol is condensed and recovered for
re-use.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, we claim :-
1. In the preparation of rape-seed for use as food for cattle and other animals,
removing the bitter principle or flavouring matter by means of alcohol, sub-
stantially as herein described.
2. In the preparation of rape-seed for use as food for cattle and other animals,
passing alcohol at about its boiling point through the crushed or ground material
either previously or subsequently to the extraction of the oil therefrom, sub-
stantially as and for the purpose herein set forth; the alcohol being ultimately
recovered by evaporation and condensation.
L
L
1001