AN APPARATUS FOR PREVENTING THE BOILERS OF STEAM ENGINES AND OTHER SIMILAR VESSELS OF CAPACITY BECOMING FOUL, AND. FOR CLEANING BUCH VESSELS WHEN THEY BECOME FOUL
Year: 1827

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SCOTT'S SPECIFICATION.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ANTHONY,
SCOTT, of Southwick Pottery, in the County of Durham, Earthenware
Manufacturer, send greeting
'WHEREAS His present most Excellent Majesty King George the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Fourth day of August, One thousand eight hundred and
twenty-seven, in the eighth year of His reign, did, for Himself, His heirs and.
successors, give and grant unto me, the said Anthony Scott, His especial
licence that I, the said Anthony Scott, my exors, adññors, and assigns, or, such
others as I, the said Anthony Scott, 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 England, Wales, and the Town of Berwick-upon-
Tweed, my Invention of "AN APPARATUS FOR PREVENTING THE BOILERS OF
STEAM ENGINES AND OTHER SIMILAR VESSELS OF CAPACITY BECOMING FOUL, AND. FOR
CLEANING BUCH VESSELS WHEN THEY BECOME FOUL;" in which said Letters Patent
is contained a proviso obliging me, the said Anthony Scott, by an instrument in
writing under my hand and seal, particularly to describe and ascertain 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 two calendar months next and immediately after the date of the said
in part 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
Anthony Scott;. do hereby declare that the nature of my. Invention is, in

page_text: preventing the gross matter contained in water, from accumulating on the
bottom and sides of steam engine boilers, and also declare that the fol-
lowing is a particular description of the method I make use of (that is to
say) :-
I take vessels or flat plates of any description, shape, or size which are most
convenient to put into the boiler or boilers. The vessels may be made of cast
iron, malleable iron, copper, brass, lead, tin, zink, or any mixture or mixtures
of metals, and also vessels made of clay and burnt stone, Roman cement, wood,
or any other hard and compact substance or substances whatever. They may
be made or manufactured within.or without, the boiler or boilers; they may
be made flat or have sides to any convenient height; they may be made with
or without feet, to keep them from coming in close contact with the boiler
or boilers, or by any other means, I place any number of these vessels at the
lowest or any other part of the boiler or boilers. Their number or capacity
should be capable of holding the supposed quantity of gross matter that may
collect until the usual time of cleaning the boiler or boilers out; the water;
being in a more quiet state above the plates or vessels than at the other.
parts of the boiler or boilers, allow the gross matter to subside there: "The
vessel or vessels must be filled with water when placed in the boilers, or
secured to their places by weights or any other means, otherwise they may
displace themselves, and not stand level when the water is first put into the
boiler.**
In witness whereof, I, the said Anthony Scott, have hereunto set my
hand and seal, this Twenty-sixth day of September, in the year of
our Lord One thousand eight hundred and twenty-seven.