A NEW MODE OF PRESERVING CERTAIN ANTHAL AND VEGETABLE SUBSTANCES FROM DECAY
Year: 1837

page_text: MARGARY'S SPECIFICATION.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSHUA
JOHN LLOYD MARGARY, of Wellington Road, Saint John's Wood, in the County
of Middlesex, Esquire, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent, under the Great Seal of Great Britain, bearing date at
Westminster, the Nineteenth day of December, in the first year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Joshua John Lloyd Margary, Her especial licence, that I, the said
Joshua John Lloyd Margary, my exors, adññors, and assigns, or such others
as I, the said Joshua John Lloyd Margary, my exors, adiñors, or assigns,
should at any time agree with, and no others, from time to time and at all
times during the term of years therein expressed, should and lawfully might
make, use, exercise, and vend, within England, Wales, and the Town of
Berwick-upon-Tweed, and also in all Her said Majesty's Colonies and
Plantations abroad, my Invention of "A NEW MODE OF PRESERVING CERTAIN
ANTHAL AND VEGETABLE SUBSTANCES FROM DECAY;" in which said Letters Patent
is contained a proviso, obliging me, the said Joshua John Lloyd Margary,
by an instrument in writing under my hand and seal, particularly to describe
and ascertain the nature of my said Invention, and in what manner the same
is to be performed, and to cause the same to be inrolled in Her said Majesty's
High Court of Chancery within six calendar months next and immediately
after the date of the said recited Letters Patent, as in and by the same,
reference being thereunto had; will more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Joshua John Lloyd Margary, do hereby declare the nature of my said Inven-
tion, to consist in wetting, steeping, soaking, or saturating the various sub-
stances to be preserved, as aforesaid, in a solution of sulphate or acetate,
of copper, and in further compliance with the said proviso I, the said Joshua
John Lloyd Margary, do hereby describe the manner in which my said
Invention is to be performed by the following statement thereof (that is to
say):
--
I take of sulphate of copper, which salt of copper I prefer, being the
cheapest, and to every pound avoirdupois I put four gallons of water, either
warm or cold, but warm water dissolves it soonest; when thoroughly mixed
in a wooden or other suitable cistern, I let it run upon the substance that is
to be acted upon, which, if timber or wood of any kind, should be fixed in a
tank made of wood, or any suitable material, and allowed to remain in the
solution two days for every inch in thickness, but, to insure durability, the
longer time that large beams remain the better. The timber should be
submitted to the process in a perfectly dry state, in order that it may absorb
as much of the solution as possible; canvass should be immersed in the said
tank in layers, the better to ensuro complete saturation, and should remain in
the solution till completely saturated, say for from about eight to sixteen
hours, according to its thickness, then put to drain, and afterwards hung up to
dry, when it will be fit for use. Ropo is twisted so hard that it would take
a long time to saturate, and it is best saturated with the solution when in the
state called strands, or of twine; and linen or cotton thread, or cloth, or
woollen, or worsted yarn, I submit to the operation of the solution in the
tank as aforesaid. Paper may be sponged over with the solution on both sides,
but it is best to mix the solution with the pulp in the following proportions,
that is to say-One pound avoirdupois of sulphate of copper to every four
gallons of water employed in making the pulp. Parchment, leather, and skins
I also place in the tank, and a very short time is sufficient for parchment to
remain in the solution; when completely moist it may be taken out and dried,
and will be fit for use; skins should remain in the solution, according to their
thickness, from one to ten days. Now whereas if acctate of copper be used,
an acid should be employed to dissolve it, and I therefore mix one pound
avoirdupois of acetate of copper with two quarts of pyroligneous acid and
fourteen quarts of water; and then it may be used in the tank in the same
manner as sulphate of copper, which dissolves in water as before described. And
whereas the certain substances to which I allude in the title of my said
Invention are timber and wood of all kinds, canvass or other cloth, whether

page_text: hempen, flaxen, cotton, or woollen, the threads also of which such cloth is
wove, and rope, twine, string, hemp, flax, cotton and wool, paper, parchment,
leather, and skins. And whereas I claim as my Invention the wetting, saturat-
ing, steeping, or soaking of the said substances with or in such solutions of
sulphate or acetate of copper as aforesaid for the purpose of preserving the same
from decay, and such my Invention being to the best of my knowledge and
belief entirely new and never before used that part of Her said Majesty's United
Kingdom of Great Britain and Ireland called England, Her said Dominion
of Wales, or Town of Berwick-upon-Tweed, nor in any of Her said Majesty's
Colonies or Plantations abroad, I do hereby declare this to be my Specification
of the same, and that I do verily believe this my said Specification doth
comply in all respects, fully and without reserve or disguise, with the proviso
in the said herein-before in part recited Letters Patent contained, wherefore
I do hereby claim to maintain exclusive right and privilege to my said
Invention.
In witness whereof, I, the said Joshua John Lloyd Margary, have
hereunto set my hand and seal, this Sixteenth day of June, in the
year of our Lord One thousand eight hundred and thirty-eight.
J. J. L. (L.s.) MARGARY.
AND BE IT REMEMBERED, that on the Sixteenth day of June, in the
year of our Lord 1838, the aforesaid Joshua John Lloyd Margary came before
our said Lady the Queen in Her 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 stamped according to
the tenor of the Statuto made for that purpose.
Inrolled the Sixteenth day of June, in the year of our Lord One
thousand eight hundred and thirty-eight.

page_text: In the Matter of Letters Patent granted to Joshua John Lloyd
Margary, of Wellington Road, St. John's Wood, in the County of
Middlesex, Esquire, for "A NEW MODE OF PRESERVING ANIMAL AND
VEGETABLE SUBSTANCES FROM DECAY," bearing date at Westminster,
the 19th day of December 1837.
MEMORANDUM OF ALTERATION entered by the said Joshua John
Lloyd Margary with the Clerk of the Patents of England, pursuant to
an Act passed in the 5th & 6th years of His late Majesty's reign,
entitled "An Act to amend the Law touching Letters Patent for
"Inventions."
I, the said JOSHUA JOHN LLOYD MARGARY, do hereby declare, that sinco
he granting of the said Letters Patent as aforesaid I have been advised that
tis doubtful whether the aforesaid new mode of preserving animal and
egetable substances from decay is applicable to all animal and vegetable
ubstances; and for this reason I, the said Joshua John Lloyd Margary, do
ereby alter the said title of the said Letters Patent, by introducing the word
certain" between the word "preserving" and the word "animal" in the

page_text: said title, the said alteration not being such as will extend the exclusive right
granted by the said Letters Patent.
In witness whereof, I have hereunto set my hand and seal, this Third
day of May, One thousand eight hundred and thirty-eight.