AN IN- PROVED METHOD OF FORMING PIPES AND SUNDRY OTHER ARTICLES IN LEAD, PEWTER, OR TIN, OR METALS OF THAT NATURE
Year: 1809

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
HEAPS, of Holywell Street, in the Parish of Saint Leonard, Shoreditch, and
County of Middlesex, Mill Lead and Patent Pipe Manufacturer, send
greeting.
WHEREAS His most Excellent Majesty King George the Third did, 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 July, in the forty-ninth year of His reign, give and grant unto me, the
said Richard Heaps my exors, admors, and assigns, His especial licence, full
power, sole priviledge and authority, that I, the said Richard Heaps, my
exors, adñiors, and assigns, during the term of years therein mentioned,
should and lawfully might make, use, exercise, and vend; within England,
Wales, and the Town of Berwick-upon-Tweed, my Invention of "AN IN-
PROVED METHOD OF FORMING PIPES AND SUNDRY OTHER ARTICLES IN LEAD, PEWTER,
OR TIN, OR METALS OF THAT NATURE;" in which said Letters Patent there is
contained a proviso, obliging me, the. said Richard Heaps, by an instrument
in writing under my hand and seal, to cause a particular description of the
nature of my said Invention, and in what manner the same is to be per-
formed, to be inrolled in. His Majesty's High Court of Chancery within
two calendar months after the date of the said recited Letters Patent, as
in and by the same, relation being thereunto had, may more fully and at large
appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Richard Heaps, do declare that the nature of my said Invention, and the
manner in which the same is to be performed, is described and ascertained as
follows, that is to say:-

page_text: After the manner of moulds now used for the purpose of casting lead pipe,
I do construct moulds of brass, iron, or other suitable materials to the size and
shape of the pipe, or whatever other article I design to cast or form with one
or more apertures in the sides or bottom of each mould, and through which
the mould is filled by being immersed as far as is necessary in the metal,
which is designed to be cast or formed when the mould is filled to the height
required. The aperture or apertures are then closed by a wedge valve, or in
any other convenient way, and the mould set aside till sufficiently cool to take
out the article cast or formed. By this method the mould is filled from
beneath the surface of the metal, and will of course be pure and free from
scoria, which is ever formed on the surface of those metals while in a state of
fusion, and exposed to the atmosphere. Although I givo preference to the
method, as above described, yet the same results may be obtained by immersing
the moulds till the metal runs in over the top, or by filling them either while
partially immersed, or immediately upon being removed from that state, which
may be done in various ways, but this is not so certain of success as the
former. The moulds may also be filled in some instances without immersion
by or through the medium of a channel or channels of communication either
to the aperture or apertures, as above described, or down what is usually
denominated the core, and is that part of the mould which forms the inside or
hollow of the pipe or other article cast or formed; this method is both more
tedious and uncertain of success than either of the former.
In witness whereof, I, the said Richard Heaps, have hereunto set my
hand and seal, the Twenty-sixth day of September, in the year of
our Lord One thousand eight hundred and nine.
RICHARD HEAPS. (L.S.)
AND BE IT REMEMBERED, that on the Twenty-sixth day of September,
in the year of our Lord One thousand eight hundred and nine, the aforesaid
Richard Heaps came before our said Lord the King in His Chancery, and
acknowledged the Specification aforesaid, and all and every thing therein
contained and specified, in form above written. And also the Specification