A NEW METHOD OF MAKING LEAD PIPES IN A BETTER MANNER THAN HAS BEEN, HERETOFORE, USED, BY WHICH SUCH PIPES ARE FREED FROM THE IMPERFECTIONS TO WHICH THEY ARE LIABLE IN THE PRESENT MODE
Year: 1790

page_text: WILKINSON'S SPECIFICATION.
TO ALL TO WHOM THESE PRESENTS SHALL COME, J.. JOHN
WILKINSON; of Broseley, in the, County of Salop; Ironmaster, send greeting.
WHEREAS His most excellent Majesty King George the Third did, by
His Letters Patent under the Great Seal of Great Britain, bearing, date the
Thirteenth day of March, in the thirtieth year of His reign, give and grant
unto me, the said. John Wilkinson, His, especial licence that I, the said John
Wilkinson during the term of years therein expressed, should and lawfully
might-use, exercise,-and-vend, within England, Wales, and the Town of
Berwick-upon-Tweed, my Invention of "A NEW METHOD OF MAKING LEAD
PIPES IN A BETTER MANNER THAN HAS BEEN, HERETOFORE, USED, BY WHICH SUCH
PIPES ARE FREED FROM THE IMPERFECTIONS TO WHICH THEY ARE LIABLE IN THE
PRESENT MODE," in which said Letters Patent there is contained a proviso
obliging me, the said John Wilkinson, under my hand and seal, to cause a
particular description of the nature of my said Invention, and how the same is
to be performed, to be inrolled in His Majesty's High Court of Chancery
within one calendar month after the date of the said recited Letters Patent,
as in and by the same (relation being thereunto had) may more fully and at
largo appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
John Wilkinson, do hereby declare that my said Invention of a new method of
making lead pipes is described in manner following (that is to say):-

page_text: I cast the lead in lengths, as is practised in the common way, this is put
upon a polished rod or round maundrell of iron or any other metal, such
maundrells being made of different lengths and diameters, according to the
size that is wanted. This rod or maundrell, with the cast lead upon it, is put
repeatedly through or between rollers with grooves of different sizes, according
to the external diameter required, and extended to the length or thickness
ordered, or drawn through metal gauges or collars of different dimensions upon
said maundrell, each succeeding collar being less than the former, untill the
.same is extended to the length and thickness required. The maundrell is
then drawn out, leaving a pipe of equal diameter within and without, and of
equal strength and thickness, according to the uses required, all which may be
performed with a common water-wheel, or any other rotative motion.
In witness whereof, I, the said John Wilkinson, have hercunto set my
hand and seal, this Twenty-fifth day of March, One thousand seven
hundred and ninote
EDW. MONTAGU.
WILKIN
(3.)
AND BE IT REMEMBERED, that on the Twenty-fifth day of March,
in the year above written, the aforesaid John Wilkinson came before our
Lord the King in His Chancery, and acknowledged the Specification
aforesaid, and all and everything therein contained in form above written.
And also the Specification aforesaid was stampt according to the tenor of
the Statute in that case made and provided.
Inrolled the Seventh day of April in the year above written.