DISCLAIMER AND MEMO- RANDUM OF ALTERATION
Year: 1838

page_text: TREFFRY'S SPECIFICATION AND DISCLAIMER AND MEMO-
RANDUM OF ALTERATION.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
TREFFRY, of Manchester, in the County of Lancaster, Chemist, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Twenty-third day of July, in the second year of Her reign, did,
for Herself, Her heirs and successors, give and grant unto me, the said
Richard Treffry, Her especial license, full power, sole privilege and authority,
that I, the said Richard Treffry, my executors, administrators, and assigns, and
such others as I, the said Richard Treffry, my executors, administrators, and
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 and Wales, and the Town of
Berwick-upon-Tweed, and in all Her Majesty's Colonies and Plantations
abroad, my Invention of "CERTAIN IMPROVEMENTS IN THE METHOD OF PRESERVING
CERTAIN ANIMAL AND VEGETABLE SUBSTANCES FROM DECAY, AND ALSO IN THE APPA-
RATUS FOR AND MODE OF IMPREGNATING SUBSTANCES TO BE PRESERVED;" in which
said Letters Patent is contained a proviso that I, the said Richard Treffry shall
cause a particular description of the nature of my said Invention, and in what
manner the same is to be performed, to be enrolled in Her Majesty's High
Court of Chancery within six calendar months next and immediately after the
late of the said in part recited Letters Patent, as in and by the same, reference
being thereunto had, will more fully and at large appear. And whereas I, the

page_text: my
said Richard Treffry, did by petition represent to Her Majesty's Solicitor
General for the time being, Sir Robert Monsey Rolfe, Knight, that since
obtaining the above-named Letters Patent I had discovered, or had good
reason for believing, that my improvements, so far as they related to the appa-
ratus used by me for impregnating the substances I intend to preserve, and also
the mode of impregnating the same, was not new and might have been heretofore
used for the same purpose, and that I had accordingly been advised to amend
the title of my said Patent in order to render the same safe and valid in law;
and I therefore prayed leave to alter and amend the title of said Patent
under the Act passed in the fifth and sixth years of His late Majesty's reign,
intituled "An Act to amend the Law touching Letters Patent for Inventions,"
by leaving out, disclaiming, or omitting the following words of my said title :-
"and also in the Apparatus for and Mode of Impregnating Substances to
be Preserved," in order that my said title, when so altered and amended, might
read as follows:-" Certain Improvements in the Method of Preserving certain
Animal and Vegetable Substances from Decay." And whereas Her Majesty's
Solicitor General, after duly considering the same, was pleased to allow such
Disclaimer or Memorandum of Alteration of the title of my said Patent, as cer-
tified by his fiat, bearing date at Lincoln's Inn, the Seventeenth day of
November, One thousand eight hundred and thirty-eight; the "Entry Paper"
of which is deposited with the Clerk of the Patents for England, the original
being duly inrolled on the Records of the Office of the Rolls Chapel of Her
Majesty's High Court of Chancery.
NOW KNOW YE, that in compliance with the said proviso contained in
the above in part recited Letters Patent, I, the said Richard Treffry, do hereby
declare that the nature of my said Invention, and the manner in which the
same is to be performed, are particularly described and ascertained in and by
the following description thereof, that is to say :-
My improvements in the method of preserving certain animal and vegetable
substances from decay consist in steeping the substances to be preserved in the
following solutions or compounds:-The principal solution to be used is made
either from the muriate of tin, or the nitrate, chloride, or muriate of copper,
dissolved in certain quantities in pure water; of these salts of copper I prefer
the chloride or muriate. The auxiliary solution in which articles to: be pre-
served are to be previously steeped or saturated is claimed as new only in its
present application in assisting the above process, and consists in precipitating
from any of the aforesaid salts or their solutions their oxides, either in a pure
or combined state, and impregnating therewith the substances to be preserved
from decay by the use of any of the mineral, vegetable, or volatile alkalies or

page_text: alkaline earths, either in a caustic, mild, or combined state, of which alkalies
or alkaline earths I prefer soda and lime. I wish it here to be understood
that the "certain" substances intended to be steeped or saturated in the above-
mentioned solution are as follows, namely: All kinds of wood and timber,
canvass, cloths, and all woven fabrics, whether manufactured from flax, hemp,
silk, wool, or any other fibrous material, and the shredds or yarns, of which the
same may be composed,either in the raw or manufactured state; also rope, cords,
and such similar articles, paper in the pulp or finished state, and also vellum,
parchment, leather, and other skins, either raw or manufactured, and feathers.
The process for accomplishing the above purpose is thus performed:-After
providing tanks, cisterns, or vessels of any suitable materials and dimensions,
(supposing the substances to be preserved are linens or such like fabrics,) I
dissolve any of the before-named salts of copper in pure water, which, if used in
a heated state, will be found to facilitate the operation in the proportion of about
one pound to six gallons of water, or more or less according to the nature and
thickness of the material under operation; and in a separate vessel I dissolve
about one pound of soda ash, containing about forty-five per centum of alkali,
in four gallons of water; or I diffuse the same quantity of fresh burnt lime in
a similar quantity of water or an equivalent quantity of any of the other
alkalies or alkaline earths, in which last-named solution or mixture I immerse
or steep the substances to be preserved from one to six hours, according to the
thickness of the material to be saturated. This solution or mixture will
require to be occasionally stirred or agitated in order to cleanse and facilitate
the absorption of the liquor by the materials under operation. When the
materials are found to be completely saturated they are to be removed from
this vessel, and all the superfluous liquor drained or pressed from them by any
convenient means; and afterwards dried. The goods are now to be wholly
immersed in the other tank or vessel containing the metallic solution, where
they must be allowed to remain from one to twelve hours, or more or less
according to their thickness and nature. The articles under operation should
occasionally be agitated and turned during this process in order to enhance its
effect; and after being subjected to this operation, and removed from the tank
and dried, the process will be complete. It is not of any material consequence
in which of these solutions the substances are first steeped, providing care be
taken to remove all the superfluous liquor remaining from the first immersion,
whether alkaline or metallic, previously to submitting them to the second; and
if they can be dried between the first and second operations the process would
be more effectual. Animal substances are to be treated much in the same way
as just described, except that with them none of the alkalies or alkaline earths

page_text: must be used. It must be observed, that where it is an object to prevent
discoloration, as in white cotton goods, that muriate of tin may be employed in
the same manner as the salts of copper; for linen, hemp, animal, and ligneous
substances, it is altogether objectionable. In the case of timber and all
ligneous substances I place it in a tank, and having previously prepared the
solution of any of the aforesaid salts of copper, (of which salts, however, I
prefer the chloride or muriate, which I use in the proportion of about onc
pound to six gallons of water,) I then allow the solution to run into the tank
in sufficient quantity to cover the timber or other materials under operation
completely. In the state of immersion, the substances should remain from one
to thirty days, according to their nature and thickness; the liquor may then be
pumped or drawn off, and the timber or other substance allowed to dry, when
it is ready for use. And lastly, I wish it to be distinctly understood that I
claim as my Invention the use or employment of any of the before-named salts
of tin and copper, without the aid of any of the alkalies or alkaline earths,
which, though rendering the process more effectual, is not indispensible. But
as the use of any of the alkalies or alkaline earths, either in a pure, mild, or
combined state, is an advantage, and part of the process generally employed by me,
I claim their exclusive use as a part of my method for preserving certain animal
and vegetable substances from decay, whether any of the before-named salts of
tin or copper, or any other salts of those or any other metals, be employed for
that purpose.
In witness whereof, I, the said Richard Treffry, have hereunto set my
hand and seal, the Sixteenth day of November, in the year of our Lord
One thousand eight hundred and thirty-eight.
RICHARD TREFFRY. (L.S.)
AND BE IT REMEMBERED, that on the Sixteenth day of November, in
the second year of the reign of Her Majesty Queen Victoria, the said Richard
Treffry came before our said Lady the Queen, in Her Chancery, and acknow-
ledged the Instrument aforesaid, and all and every thing therein contained and
specified, in form above written. And also the Instrument aforesaid was
stamped according to the tenor of the Statute made in the fifty-fifth year of
the reign of his late Majesty King George the Third.
Inrolled the Twenty-second day of January, One thousand eight hundred

page_text: In the Matter of a Patent granted to Richard Treffry, of Manchester, in
the County of Lancaster, Chemist, for his Invention of "CERTAIN IM-
PROVEMENTS IN THE METHOD OF PRESERVING CERTAIN ANIMAL AND VEGETABLE
SUBSTANCES FROM DECAY, AND ALSO IN THE APPARATUS FOR AND MODE OF
IMPREGNATING SUBSTANCES TO BE PREPARED," bearing date the Twenty-
third day of July, One thousand eight hundred and thirty-eight.
DISCLAIMER and MEMORANDUM OF ALTERATION entered by the
said Richard Treffry with the Clerk of the Patents of England,
pursuant to an Act passed in the fifth and sixth years of His late
Majesty's reign, intituled An Act to amend the Law touching Letters
Patent for Inventions.
I, the said Richard Treffry, do hereby declare, that since obtaining the said
Letters Patent I have discovered or have good reason for believing that the
apparatus used by me for impregnating the substances I intend to preserve,
and the mode of impregnating the same, is not new, and may have been
heretofore used for the same purpose, and I have accordingly been advised
to amend the title of my said Patent, in order to render the same safe and
valid in law; and for the reasons aforesaid I, the said Richard Treffry, do hereby
disclaim and omit such part of the title of my said Patent as relates to the
apparatus to be used by me in impregnating substances I intend to preserve,
and also the mode of impregnating the same, (that is to say), I, the said
Richard Treffry do hereby make the following disclaimer or memorandum of
alteration and omission of part of the title of my said Patent, and for this
reason (viz), in order to make the same consistent with what my Specifica-
tion will describe my said Invention to be when such disclaimer, omission, or
memorandum of alteration as aforesaid shall have been entered as aforesaid,
(that is to say), I disclaim the words "and also in the Apparatus for and Mode of
Impregnating Substances to be Preserved," in order that the said title, when so
altered, may read as follows:-" Certain Improvements in the Method of
Preserving certain Animal and Vegetable Substances from Decay."
In witness whereof, I, the said Richard Treffry, have hereunto set my
hand, this Tenth day of November, One thousand eight hundred
and thirty-eight

page_text: To the Clerk of the Patents.
This is to certify that Richard Treffry, of Manchester, in the County of
Lancaster, Chemist, has applied to me for leave to enter the above written dis-
claimer and memorandum of alteration of part of the title of a certain Invention
for which Letters Patent were duly granted under the Great Seal, dated at West-
minster the 23d day of July, 1838; and on considering of the said application,
and no objection having been made thereto, I have accordingly granted leave
to the said Richard Treffry to file his said disclaimer and the memorandum
of alteration, pursuant to the Statute passed in the sixth year of the reign of
His late Majesty, intituled. "An Act to amend the Law touching Letters
Patent for Inventions."
AND BE IT REMEMBERED, that on the Tenth day of November, in the
second year of the reign of Her Majesty Queen Victoria, the said Richard
Treffry came before our said Lady the Queen in Her Chancery, and acknow-
ledged the Instrument aforesaid, and all and every thing therein contained and
specified, in form above written. And also the Instrument aforesaid was
stamped according to the tenor of the Statute made in the fifty-fifth year of the
reign of His late Majesty King George the Third.
Inrolled the Twenty-second day of January, One thousand eight hundred
and thirty-nine.