A METHOD FOR THE USE OF MADDER IN THE DYING OF CALICOS, LINENS, AND STUFFS, WHEREBY A CONSIDERABLE SAVING IS MADE IN THE CONSUMPTION OF THAT ROOT OR DRUG
Year: 1802

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
LEACH, of "Merton Abbey, in the County of Surry, Calico Printer, send
greeting.
WHEREAS His present Majesty King George the Third, by His Royal
Letters Patent under the Great Seal of the United Kingdom of Great Britain
and Ireland, bearing date at Westminster, the Sixth day of April, in the forty-
second year of His reign, upon the Petition of me, the said John Leach, has
been pleased to give and grant unto me, the said John Leach, my executors,
administrators, and assigns, the licence, full power, sole priviledge and authority,
for the sole use, benefit, and advantage of an Invention of "A METHOD FOR THE
USE OF MADDER IN THE DYING OF CALICOS, LINENS, AND STUFFS, WHEREBY A
CONSIDERABLE SAVING IS MADE IN THE CONSUMPTION OF THAT ROOT OR DRUG," the
said license and priviledge to continue for the term of fourteen years from the
date of the said Letters Patent, as by the said Letters Patent may more fully
appear; and whereas it is in and by the said Letters Patent provided and con-
ditioned that I, the said John Leach, shall particularly describe and ascertain
the nature of my said Invention, and in what manner the same is to be
performed, by an instrument in writing under my hand and seal, and cause
the same to be iurolled in the High Court of Chancery within one calendar
month next after the date of the said Letters Patent, otherwise the said
Letters Patent shall be void.

page_text: NOW KNOW YE, that I, the said Jolin Leach, in obedience to the
proviso or condition contained in the said Letters Patent, do by this present
Deed or Instrument, under my hand and seal, describe and ascertain the nature
of my said Invention of a Method for the Use of Madder in the Dying of
Calicos, Linens, and Stuffs, whereby a considerable Saving is made in the
Consumption of that Root or Drug, and the manner in which the same is to
be performed, in manner following (that is to say):-
That whereas the practice has hitherto been in the dying with madder to use
river water, pond water, spring water, rain water, or other water in its natural
state, my Invention is, that water being first prepared by heat, either in an
open or a steam-tight vessel, will thereby be rendered more efficacious for
extracting the tint, dye, or color from-madder; that this improvement or
inclioration in the quality or virtue of water for the purpose of dying with
madder may be produced from a less than boiling lieat in an open vessel, or
from a greater than boiling heat in a steam-tight vessel; but that the most
sure and certain method to obtain that end in its fullest extent is to continue
the water at a boiling heat for a certain space of time, and that the efficacy
or improved quality in the water will increase in proportion to the time
it is kept in a boiling state, first shewing itself after a few minutes boiling,
and advancing progressively for thirty minutes or upwards. That water
which has been boiled for the space or time of thirty minutes (little more
or less). will be brought to a perfect state for the purpose, before mentioned,
and that if the boiling be continued for more than thirty minutes, the virtue
or efficacy of the water will not be materially improved; and after boiling
thirty minutes it will be proper to suffer it to cool and subside before it is
used, though it will answer very well if used before cooling; and that water
being first prepared by heat, as before laid down, may be repeatedly used
in the dying with madder, provided the same be preserved from impurities,
which may be done by keeping the liquor, after boiling or dying with madder,
untill the vegetable and earthy parts are subsided.
In witness whereof, I, the-said John Leach, have hereunto set my hand
and seal, this Twenty-seventh day of April, in the forty-second year of
the reign of our Sovereign Lord George the Third, by the grace of God
of the United Kingdom of Great Britain and Ireland King, Defender
of the Faith, and in the year of our Lord One thousand eight hundred
and two.
JOHN (L.S.) LEACH.

page_text: AND BE IT REMEMBERED, that on the Twenty-seventh day of April,
in the year of our Lord 1808, the aforesaid John Leach came before our said
Lord the King in His Chancery, and acknowledged the Specification aforesaid,
and all and every thing therein contained and specified, in form above written.
And also the Specification aforesaid was stampt according to the tenor of the
Statutes made for that purpose.
Inrolled the Twenty-seventh day of April, in the year of our Lord One
thousand eight hundred and two.