WATER- PROOFING ALL KINDS OF CLOTH, CLOTHING, SILK, AND LEATHER, WITHOUT INJURY TO THEIR RESPIRATORY PROPERTIES, FLEXIBILITY OF FABRIC, COLOUR, OR APPEARANCE
Year: 1854

page_text: Square, in the County of Middlesex, Gentleman, and Thomas Jones, of
the same Place and County, Chemist, for the Invention of "WATER-
PROOFING ALL KINDS OF CLOTH, CLOTHING, SILK, AND LEATHER, WITHOUT
INJURY TO THEIR RESPIRATORY PROPERTIES, FLEXIBILITY OF FABRIC, COLOUR,
OR APPEARANCE."
"
Sealed the 21st November 1854, and dated the 25th May 1854.
PROVISIONAL SPECIFICATION left by the said Edward Everall and Thomas
Jones at the Office of the Commissioners of Patents, with their Petition,
on the 25th May 1854.
We, EDWARD EVERALL and THOMAS JONES, do hereby declare the nature of
the said Invention for "WATERPROOFING ALL KINDS OF CLOTH, CLOTHING, SILK, AND
LEATHER, WITHOUT INJURY TO THEIR RESPIRATORY PROPERTIES, FLEXIBILITY OF
FABRIC, COLOUR, OR APPEARANCE," to be as follows:-
The result of given quantities of the sulphate of potash & alumina, nitrate
of lead, and acetate of lead & water mixed together, constitutes the water-
proofing substance, which substance when applied in a specific manner to
cloths, silks, leather, or any wearing apparel, or fabric used in the manufacture.
of wearing apparel, renders the article or fabric impervious to both sea &
rain water, at the same time preserving the respiratory properties, flexibility of
fabric, colour, & appearance of the said articles and fabrics, without commu-
nicating the slightest odour to them. The waterproofing property when
communicated is not affected by climate, & retains its efficacy as long as the
fabric or article of apparel lasts.

page_text: SPECIFICATION in pursuance of the conditions of the Letters-Patent, filed
by the said Edward Everall and Thomas Jones in the Great Seal Patent
Office on the 25th November 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, EDWARD
EVERALL, of 2, Henrietta Street, Brunswick Square, in the County of Mid-
dlesex, Gentleman, and THOMAS JONES, of the same Place and County,
Chemist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fifth day of May, in the year of our Lord One
thousand eight hundred and fifty-four, in the seventeenth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto us, the said
Edward Everall and Thomas Jones, Her special licence that we, the said
Edward Everall and Thomas Jones, our executors, administrators, and assigns,
or such others as we, the said Edward Everall and Thomas Jones, our executors,
administrators, 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 "WATERPROOFING ALL KINDS OF CLOTH, CLOTHING, SILK, AND
LEATHER, WITHOUT INJURY TO THEIR RESPIRATORY PROPERTIES, FLEXIBILITY OF
FABRIC, COLOR, AND APPEARANCE, ENTITULED 'RESPIRATORY WATERPROOFING,"" upon
the condition (amongst others) that we, the said Edward Everall and Thomas
Jones, by an instrument in writing under our hands and seals, should particu-
larly 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.
NOW KNOW YE, that we, the said Edward Everall and Thomas Jones,
do hereby declare the nature of our said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained in and
by the following statement:-
The result of the following chemicals mixed together in the proportions
specified below constitutes the waterproofing substance: sulphate of alumina
and potash, seyen and a half pounds, dissolved in three gallons of water; oxide
or acetate of lead, three pounds and three quarters of a pound; nitrate of lead,
five ounces, dissolved together in seven quarts of water; and, lastly, soluble sili-
cate of potash, five ounces, dissolved in one quart of water; the three solutions
to be mixed together. A white precipitate is then deposited, the mixture

page_text: remaining undisturbed for two or three hours; the clear liquor drawn there-
from is the waterproofing substance. The mode of performing the process is
as follows:-Every kind of cloth, whether of wool, cotton, flax, hemp or tow, or
partly of one or more of the said materials, and all articles of clothing and for
other purposes manufactured of any or several of the said materials, and every
kind of silk, or fabric partly of silk and partly of one or several of the aforesaid
materials, and every kind of leather, are placed in a suitable vessel with the
waterproofing substance, above described, in sufficient quantity to cover them,
and are to remain for the space of nine hours, then to be taken out and dried
by heat or the open air; when dry to be well brushed (except leather of all
kinds) and hot pressed, and then exposed to the air till free from smell. All
leather and leather articles when dried to be slightly coated with some oily
substance, and as regards them the process is complete. Amongst the above-
named chemicals, we particularly claim the use and application to and for
waterproofing purposes of the oxide of lead, both in itself and in combination
with the other chemicals aforesaid, or any of them. We also particularly claim
the use and application to and for waterproofing purposes of the soluble silicate
of potash, both in itself and in combination with the other chemicals, above
described, or any of them; and we also particularly claim the use and applica-
tion to and for the said waterproofing purposes of the oxide of lead and the
soluble silicate of potash, both together and in combination with the other
chemicals, above described, or any of them. We believe the sulphate of
alumina and ammonia has been used for waterproofing purposes, but we also
believe we are entitled to claim particularly the use and application to and for
waterproofing purposes of the sulphate of alumina and potash, and make such
claim accordingly. We distinguish our waterproofing from the non-ventilating
Patents by its "respiratory property," by which we mean its admitting the
passage of the breath, and therefore the imperceptible exhalations from the
body by perspiration, and from all professed ventilating waterproofing, by its
durability and permanency.
In witness whereof, we, the said Edward Everall and Thomas Jones.
have hereunto set our hands and seals, this Twenty-fifth day of
November, in the year of our Lord One thousand eight hundred and
fifty-four
EDWARD EVERALL. (L.s.)
THOMAS JONES.
(L.S.)