IMPROVEMENTS IN BREWING
Year: 1872

page_text: LETTERS PATENT to William Garton, of the Town and County of the
Town of Southampton, Brewer, for the Invention of "IMPROVEMENTS
IN BREWING."
PROVISIONAL SPECIFICATION left by the said William Garton at the
Office of the Commissioners of Patents, with his Petition, on the
25th March 1872.
I, WILLIAM GARTON, of the Town and County of the Town of
Southampton, Brewer, do hereby declare the nature of the said In-
vention for "IMPROVEMENTS IN BREWING," to be as follows:-
The object of my Invention is to remove a considerable portion of the
albumen, gluten, and other impurities or objectionable matters contained
in the malt or grain and water employed in brewing beer, wine, alcohol,
and vinegar. For this purpose I form in the wort or unfermented liquor,
or in the beer, wine, alcohol, or vinegar after fermentation or during the
process of fermentation, a precipitate of an earthy phosphate, which is

page_text: .
afterwards removed by subsidence or filtration, carrying the impurities
with it.
The manner in which I prefer to carry the Invention into effect is as
follows: I add to the wort one of the alkaline phosphates, phosphate of
soda for example, which I thoroughly mix with the wort. I then add a
sufficient proportion of sulphate of lime or chloride of calcium to produce
a precipitate of phosphate of lime and a solution of sulphate of soda or
chloride of sodium by means of the reaction which chemists call double
decomposition. Or I add to the wort some phosphoric acid, soluble
phosphate of lime, or any other suitable material or materials which will
procure the presence of phosphoric acid in the wort either free or in the
form of a soluble phosphate. I thoroughly mix and I then add a
sufficient quantity of chalk, lime, or any other suitable material to
precipitate the phosphoric acid in the form of an insoluble phosphate.
In some cases it may be more convenient to add the sulphate of lime
or other precipitating materials first and the soluble phosphate after.
As already herein-before explained, I apply the purifying agents in
different stages of the brewing, both before, during, and after fer-
mentation.
SPECIFICATION in pursuance of the conditions of the Letters Patent, 2
filed by the said William Garton in the Great Seal Patent
Office on the 25th September 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
GARTON, of the Town and County of the Town of Southampton, Brewer,
send greeting.
2
WHEREAS Her most Excellent Majesty Queen Victoria, by. Her
Letters Patent, bearing date the Twenty-fifth day of March, in the year
of our Lord One thousand eight hundred and seventy-two, in the
thirty-fifth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said William Garton, Her special licence a
that I, the said William Garton, my executors, administrators, and
assigns, or. such others as I, the said William Garton, my executors,
administrators, and assigns, should at any time agree with, and no

page_text: "
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 "IMPROVEMENTS
IN BREWING, upon the condition (amongst others) that I, the said
William Garton, 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 in the Great Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
די
.
"
"
•
";
NOW KNOW YE, that I, the said William Garton, 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 thereof, that is to say: "
The object of my Invention is to remove a considerable portion of the
albumen, gluten, and other impurities or objectionable matters contained
in the malt or grain and water employed in brewing beer, wine, alcohol,
and vinegar. For this purpose I form in the wort or unfermented liquor,
or in the beer, wine, alcohol, or vinegar after fermentation or during the
process of fermentation, a precipitate of an earthy phosphate, which is
afterwards removed by subsidence or filtration, carrying the impurities
with it.
The manner in which I prefer to carry the Invention into effect is as
follows:-I add to the wort one of the alkaline phosphates, phosphate of
soda for example, in the proportion of about 17 lbs. of crystallized
phosphate of soda to 100 barrels of wort; I thoroughly mix the
phosphate with the wort. I then add about 7 lbs. of sulphate of lime, or
5 lbs. of chloride of calcium, and afterwards about 1 lb. of well slacked
lime considerably diluted. I thus produce a precipitate of phosphate of
lime and a solution of sulphate of soda or chloride of sodium by means
of the reaction which chemists call double decomposition. Or I add to
the wort some phosphoric acid, soluble phosphate of lime, or any other
suitable material or materials which will procure the presence of
phosphoric acid in the wort either free or in the form of a soluble
phosphate. I thoroughly mix and I then add a sufficient quantity of

page_text: chalk, lime, or any other suitable material to precipitate the phosphoric
acid in the form of an insoluble phosphate.
In some cases it may be more convenient to add the sulphate of lime
or other precipitating materials first and the saluble phosphate after, but
when slacked lime is used it is always preferable to add it last.
As already herein-before explained, I apply the purifying agents in
different stages of the brewing, both before, during, and after fer-
mentation; in some cases if preferred the purifying agents may be
applied in the mash tun..
In cases where there is already sulphate of lime in the brewing water 1
I increase the proportion of phosphate of soda, or diminish the pro-
portion of sulphate of lime accordingly; or if the quantity of sulphate of
lime in the brewing water is sufficient to decompose the 17 lbs. of
phosphate of soda as well as the phosphate of soda naturally in the wort,
it will not be necessary to add any more sulphate to it.
In witness whereof, I, the said William Garton, have hereunto set
my hand and seal, this Twenty-fourth day of September One
thousand eight hundred and seventy-two.
1