DOUBLE AND SINGLE KETTLES, FURNACES, AND BOILERS, MADE OF WROUGHT IRON PLATE, TO BE USED IN THE ROYAL NAVY, INSTEAD OP THE LIKE KIND OF UTENSILS MADE OF COPPER, WHICH HAD BEEN FOUND BY LONG EXPERIENCE TO BE VERY PERNICIOUS TO THE SHIPS' COMPANY'S HEALTHS
Year: 1754

page_text: JOHNSON, of Rotherhith, in the County of Surry, Brazier, send greeting.
WHEREAS I, the said William Johnson, did by my petition humbly
represent unto His present most Excellent Majesty King George the Second,
that I had, with great application and expence, invented "DOUBLE AND SINGLE
KETTLES, FURNACES, AND BOILERS, MADE OF WROUGHT IRON PLATE, TO BE USED
IN THE ROYAL NAVY, INSTEAD OP THE LIKE KIND OF UTENSILS MADE OF COPPER,
WHICH HAD BEEN FOUND BY LONG EXPERIENCE TO BE VERY PERNICIOUS TO THE SHIPS'
COMPANY'S HEALTHS," and that the Coñiissioners of the Admiralty and the
Commissioners of the Navy baving seen the said double iron kettles, had
approved thereof, and given directions for my supplying the Royal Navy
therewith, and that I humbly apprehended the using the said double and
single iron kettles, furnaces, and boilers would be a great means of preserving
the healths of His Majestie's subjects serving on board His Royal Navy:
I therefore by my said petition humbly prayed Ilis Majesty to grant unto
me, the said William Johnson, my executors, administrators, and assigns, His
Letters Patent under the Great Seal of Great Britain for the sole use and benefit
of my said Invention for the term in the said Letters Patent and herein-after
mentioned: His said Majesty therefore being willing to give encouragement
to all arts and Inventions which may be for the publick good, by His Letters
Patent under the Great Seal of Great Britain, bearing date at Westminster,
the Thirty-first day of January, in the twenty-seventh year of His reign, did, of
Ilis especial grace, certain knowledge, and meer motion, give and grant unto
me, the said William Johnson, my exors, administrators, and assigns, His

page_text: especial lycence, full power, sole privilege and authority, that I, the said
William Johnson, my exors, adññors, and assigns, by myself and themselves, or
by our deputys, servants, or agents, or such others as I or they should at any
time hereafter agree with, and no others, should and might make, use, exer-
cise, and vend my said Invention within England, Wales, and Town of Ber-
wick-upon-Tweed, and within all His said Majestie's Colonies and Plantations
in America, in such manner as to me, the said William Johnson, my exors,
adiiors, and assigns, should seem meet, to have and to hold, exercise, and
enjoy the said lycence, powers, privileges, & advantages thereby granted unto me,
the said William Johnson, my exors, adññors, and assigns, for and during and
unto the full end and term of fourteen years from the date of the said Letters
Patent next and immediately ensuing, and fully to be compleat and ended;
in which said Letters is contained a proviso obliging me, the said William
Johnson, by an instrument in writing under my hand and seal, to be inrolled
in His said Majestie's High Court of Chancery within four kalendar months
next and imediately after the date of the said recited Letters Patent, par-
ticularly to describe and ascertain the nature of my said Invention, and in
what manner the same is to be performed, otherwise the said Letters Patent,
and all liberties & advantages thereby granted, should cease, determine, and
become void, any thing therein contained to the contrary notwithstanding, as
in and by the said in part recited Letters Patent, referrence being thereunto
had, may more fully and at large appear.
NOW KNOW YE, that I, the said William Johnson, in pursuance of the
said proviso, do hereby declare that my said Invention is to be performed in
the manner following (that is to say):-
Take an iron barr or barrs, and hammer or roll them in an iron rolling
mill to such sizes and substances as will be necessary for the size of the
double kettle, furnace, or boyler. They are wrought by hand, and put toge-
ther with iron forge rivetts, work'd hot to any size or direction required. The
workmanship is performed in the same manner that copper ones are.
In witness whereof, I, the said William Johnson, have hereunto set my
hand and seal, this Eighth day of May, in the twenty-seventh year of
the reign of His said Majesty King George the Second over Great
Britain, and so forth, and in the year of our Lord One thousand seven
hundred and fifty-four.
Sealed & delivered (being first duly
stampt) in the presence of
JOHN MOORE.
WM JOHNSON.

page_text: AND BE IT REMEMBRED, that on the said Eighth day of May, in the
year above said, the above-named William Johnson came before our said
Lord the King in His Chancery, and acknowledged the Writing aforesaid,
and every thing therein contained and specified, in form above said.
And
the said Writing was stampt according to the Statute made in the sixth year
of the reign of the late King William and Queen Mary, and so forth.
Inrolled the day and year above written.