AN IMPROVED METHOD OF AND APPARATUS FOR CLARIFYING AND REFINING BUTTER AND OTHER FATTY MATTERS
Year: 1869

page_text: LETTERS PATENT to William Young, of Foyle Road, Londonderry,
in the County of Londonderry, Ireland, for the Invention of "AN
IMPROVED METHOD OF AND APPARATUS FOR CLARIFYING AND REFINING BUTTER
AND OTHER FATTY MATTERS."
Sealed the 18th February 1870, and dated the 30th August 1869.
PROVISIONAL SPECIFICATION left by the said William Young at the
Office of the Commissioners of Patents, with his Petition, on the
30th August 1869.
I, WILLIAM YOUNG, of Foyle Road, Londonderry, in the County of
Londonderry, Ireland, do hereby declare the nature of the said Inven-
tion for "AN IMPROVED METHOD OF AND APPARATUS FOR CLARIFYING AND
REFINING BUTTER AND OTHER FATTY MATTERS," to be as follows:-
In performing my Invention I make use of a cylinder, into which the
butter or other matter to be clarified is placed. One end of this cylinder
is provided with sieves or perforated plates of metal, through which the

page_text: butter is forced by a piston actuated by a screw or other equivalent.
The butter by being forced through the sieves is cleansed from hairs and
all other impurities, and is thoroughly mixed, and thereby made of a
uniform color, taste, and quality.
Another mode of performing my Invention is by using a bladed screw,
which fits the inside of the cylinder and forces the butter through the
perforated plates or sieves.
The perforated plates or sieves are movable, so that after each
operation others may be substituted while those that have been already
used are cleaned.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Young in the Great Seal Patent Office
on the 28th February 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
YOUNG, of Foyle Road, Londonderry, in the County of Londonderry,
Ireland, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirtieth day of August, in the year
of our Lord One thousand eight hundred and sixty-nine, in the thirty-
third year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said William Young, Her special licence, that
I, the said William Young, my executors, administrators, and assigns,
or such others as I, the said William Young, my executors, adminis-
trators, and assigns, should at any time agree with, and no others, from
time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "AN IMPROVED METHOD OF
AND APPARATUS FOR CLARIFYING AND REFINING BUTTER AND OTHER FATTY
MATTERS," upon the condition (amongst others) that I, the said William
Young, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particularly.
describe and ascertain the nature of the said Invention, and in what-
manner the same was to be performed, and cause the same to be filed

page_text: in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Young, do hereby declare
the nature of my said 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 consists in clarifying and refining butter and other
fatty matters, and cleansing them from hair, dirt, and other impurities.
And in order that my Invention may be fully understood and readily
carried into effect, I will proceed to describe the accompanying Sheet
of Drawings, reference being had to the figures and letters marked
thereon.
Fig. 1 is a longitudinal elevation of a cylinder provided with per-
forated metal plates or sieves E at one end, and with an opening C at
the other end, through which the butter or other fatty matter is fed into
the cylinder. Inside the cylinder is a piston actuated by a screw or by
a rack and pinion or other equivalent to force the butter or other
fatty matter through the sieves. Fig. 2 is a longitudinal section, and
Fig. 3 is a section through A, B, Figure 1.
In performing my Invention the butter or other fatty matter is fed
into the cylinder through the opening C, and when the requisite
quantity has been admitted the piston D advances and presses the whole
of the butter or other fatty matter through perforated metal plates or
sieves, leaving the hair, dirt, and other impurities on the perforated
plates or sieves, which are then removed to be cleaned and others put in
their place. The sieves that have been used may be removed and fresh
ones substituted while the piston is being drawn back, so that there is
no necessity for stopping the machine.
Another mode of performing my Invention consists in applying a
bladed screw, which works inside the cylinder not quite touching the
sides; this screw in revolving carries the butter or other fatty matter
forward as it is fed into the cylinder, and forces it through the perforated
metal plates or sieves. By means of this screw the butter is is cut up
and mixed while in the cylinder, and is more thoroughly mixed and
easily forced through the sieves. By means of these improvements the
butter is cleansed from all impurities, and thoroughly mixed, thereby

page_text: making it of a uniform taste, color, and quality, and greatly increasing
its value.
Having thus declared the nature of my Invention, and described the
manner of performing the same, I declare that I claim, the improved
method of and apparatus for clarifying and refining butter and other
fatty matters as above described.
In witness whereof, I, the said William Young, have hereunto set
my hand and affixed my seal, this Twenty-sixth day of February
One thousand eight hundred and seventy.
Present,
MICHAEL HENRY,
Solr., Londonderry.
JOHN ROULSTON,
Writing clerk, Londonderry.
WILLIAM YOUNG. (L.S.)