IMPROVEMENTS IN CHARTS, MAPS, PLANS, ILLUMINATED AND OTHER PRINTED ARTICLES BY THE USE OF A WATERPROOF AND UNTEARABLE MATERIAL AS A SUBSTITUTE FOR PAPER
Year: 1866

page_text: LETTERS PATENT to Rachel Stackhouse, of Central Hill Cottage, Central
Hill, Norwood, in the County of Surrey, Widow, for the Invention of
"IMPROVEMENTS IN CHARTS, MAPS, PLANS, ILLUMINATED AND OTHER PRINTED
ARTICLES BY THE USE OF A WATERPROOF AND UNTEARABLE MATERIAL AS A
SUBSTITUTE FOR PAPER."
Sealed the 24th October 1866, and dated the 24th April 1866.
PROVISIONAL SPECIFICATION left by the said Rachel Stackhouse at
the Office of the Commissioners of Patents, with her Petition, on the
24th April 1866.
I, RACHEL STACKHOUSE, of Central Hill Cottage, Central Hill, Norwood,
in the County of Surrey, Widow, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN CHARTS, MAPS, PLANS, ILLUMINATED AND OTHER
PRINTED ARTICLES BY THE USE OF A WATERPROOF AND UNTEARABLE MATERIAL)
AS A SUBSTITUTE FOR PAPER," to be as follows:-
E
My Invention relates to the use of a textile fabric, such as woven silk, linen,
or cotton, covered on one or both surfaces with a mixture composed of a drying.
oil and some pigment, such as white lead or zinc, white, so as to be water-
proof and adapted to take impressions from engraved plates or stones or from.
type. The material I prefer to use for this purpose is an evenly wove

page_text: cotton cloth, which is first stretched upon a frame and then covered with a
slight coating of a mixture of size and whiting laid on with a brush. The
cloth is afterwards covered on one or both surfaces with a mixture composed
of the boiled oil of commerce in the proportion of about one part by weight
of oil to two parts by weight of either white lead or zinc white, which is spread
over the cloth with a spatula or other suitable tool.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Rachel Stackhouse in the Great Seal Patent Office on the
24th October 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RACHEL
STACKHOUSE, of Central Hill Cottage, Central Hill, Norwood; in the County of
Surrey, Widow, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of April, in the year of our Lord
One thousand eight hundred and sixty-six, in the twenty-ninth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Rachel Stackhouse, Her special licence that I, the said Rachel
Stackhouse, my executors, administrators, and assigns, or such others as I, the
said Rachel Stackhouse, my executors, administrators, and assigns, should at
any time agree with, and no others, from time to time and at all times there-
after 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
CHARTS, MAPS, PLANS, ILLUMINATED AND OTHER PRINTED ARTICLES BY THE USE OF
A WATERPROOF AND UNTEARABLE MATERIAL AS A 'SUBSTITUTE FOR PAPER," upon
the condition (amongst others) that I, the said Rachel Stackhouse, my execu-
tors 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.
NOW KNOW YE, that I, the said Rachel Stackhouse, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say:-
My Invention relates to the use of a textile fabric, such as woven silk, linen,

page_text: or cotton, covered on one or both surfaces with a mixture composed of a drying
oil and some pigment, such as white lead or zinc white, so as to be waterproof
and adapted to take impressions from engraved plates or stone or from type.
The material I prefer to use for this purpose is an evenly wove cotton cloth,
which is first stretched upon a frame and then covered with a slight mixture
of size and whiting laid on with a brush. The cloth is afterwards covered
on one or both surfaces with a mixture composed of the boiled oil of commerce
in the proportion of about one part by weight of oil to two parts by weight
of either white lead or of zinc white, which is spread over the cloth with a
spatula or other suitable tool. The material when dry may be used for
the purposes herein named by the usual processes adopted in the uses of
paper.
Having now described the nature of my said Invention, and in what manner
the same may be performed, I declare that I claim,―
First, the use of the material herein described for charts, maps, architectural
and other plans.
Second, for engravings and illuminated printing.
Third, deeds, leases, and such other written or printed articles as require
durability.
In witness whereof, I, the said Rachel Stackhouse, have hereunto set my
hand and seal, this Twenty-fourth day of October, in the year of our
Lord One thousand eight hundred and sixty-six.
RACHEL STACKHOUSE. (L.S.)