A NEW MODE OF SHEATHING OR COVERING THE BOTTOMS OF SHIPS OR VESSELS WITH CERTAIN MATTERS OR MATERIAIS, SO AS TO BE A SUBSTITUTE FOR COPPER
Year: 1810

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
NORRIS, late of Manchester, in the County Palatine of Lancaster, Cotton
Merchant, send greeting.
WHEREAS His most Excellent Majesty King George the Third, by His
Letters Patent under the Great Seal of the United Kingdom of Great Britain
and Ireland, bearing date at Westminster, the Twenty-sixth day of September,
in the fiftieth year of His reign, did, for Himself, His heirs and successors,
grant unto me, the said Thomas Norris, His especial licence that I, the said
Thomas Norris, my exors, adññiors, and assigns, or such others as I, the said
Thomas Norris, my exors, adñiors, 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 that part of the said United Kingdom called England, the Dominion
of Wales, and the Town of Berwick-upon-Tweed, and also within all His
Majesty's Plantations and Colonies abroad, my Invention of "A NEW MODE OF
SHEATHING OR COVERING THE BOTTOMS OF SHIPS OR VESSELS WITH CERTAIN MATTERS
OR MATERIAIS, SO AS TO BE A SUBSTITUTE FOR COPPER;" in which said Letters
there is contained a proviso, obliging me, the said Thomas Norris, by an
instrument in writing under my hand and seal, particularly to describe 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 His Majesty's High Court of Chancery
within six calendar months next and immediately after the date of the said

page_text: recited Letters Patent, as in and by the same, reference being thereunto had,
will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Thomas Norris, do hereby declare that the nature of my said Invention, and
the manner in which the same is to be performed, is described and ascertained
in the following explanation thereof, that is to say:-
In the application of lead, rendered hard to a proper degree by the addition
of regulus, of antimony, arsenic, tin, or any other mineral or metallic substance
that will answer the purpose.
Now in order to carry my said application into practice, tho' the saine may
be effected by varying the proportions of the respective metals and mineral,
I consider the following as best suited to my purpose, that is to say:-lead
one hundred pounds; tin, twelve pounds; regulus of antimony, three pounds;
arsenic, three pounds; or lead, one hundred pounds; tin, twenty pounds; or
lead, one hundred pounds; regulus of antimony, three pounds; arsenic, three
pounds. The above metals or mineral in their various proportions are united
by fusion in a crucible or iron pot, and being cast into ingots, the same is
passed between rollers of metal till it is reduced to a proper degree of thick-
or sheets
Previous to and during rolling it is of advantage to anneal or heat the ingots or sheets.
^
ness or substance for my purpose. In order to fasten the above sheathing
to the bottoms of ships or vessels, iron, copper, or brass, or other metallic nails
proper for the purpose, or iron nails covered with tin or lead, or of the com-
pound metals above described, or with a compound similar to that of which the
sheets are made may be used.
In witness whereof, I, the said Thomas Norris, have hereunto set my
hand and seal, the First day of February, in the year of our Lord
One thousand eight hundred and eleven.

page_text: AND BE IT REMEMBERED, that on the Eighteenth day of March, One
thousand eight hundred and eleven, the aforesaid Thomas Norris came before
our said Lord the King in His Chancery, and acknowledged the Specification
aforesaid with the following additions by interlineations; namely, between the
eighteenth and nineteenth [16th and 17th] lines the words "or sheets," and
between the nineteenth and twentieth [18th and 19th] lines the words "Pre-
vious to and during rolling it is of advantage to anneal or heat the ingots or
sheets."