CERTAIN UNI- VERSAL AND PERPETUAL PRINCIPLES OF SAVING FUEL IN THE HEATING, BOILING, OR EVAPORATING OF ALL KINDS OF FLUIDS, AND CERTAIN NEW INVENTED STILLS AND BOILERS
Year: 1789

page_text: HOWSON'S SPECIFICATION.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, MARY
Howson, of Tottenham High Cross, in the County of Middlesex, Widow,
send greeting.
WHEREAS His most Excellent Majesty King George the Third, by His
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Ninth day of June, in the twenty-ninth year of His reign,
did give unto me, the said Mary Howson, His special licence, that I,
the said Mary Howson, during the term of years therein expressed, should
and lawfully might make, use, exercise, and vend, within that part of the
Kingdom of Great Britain called England, the Dominion of Wales, and
Town of Berwick upon Tweed, an Invention communicated to me by my
brother, Isaac Lascelles Winn, of the Island of Jamaica, of "CERTAIN UNI-
VERSAL AND PERPETUAL PRINCIPLES OF SAVING FUEL IN THE HEATING, BOILING, OR
EVAPORATING OF ALL KINDS OF FLUIDS, AND CERTAIN NEW INVENTED STILLS AND
BOILERS;" in which said Letters Patent there is contained a proviso obliging
me, the said Mary Howson, by an instrument in writing under my hand and
seal, to cause a particular description of the nature of the said Invention, and
in what manner the same is to be performed, to be inrolled in His Majesties
High Court of Chancery within one calendar month next and immediately
after the date of the said recited Letters Patent, as in and by the same, rela-
tion being thereunto had, may more fully appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Mary Howson, do hereby declare that the nature of the said Invention, and
the manner in which the same is to be performed, is described as follows, that
is to say:-

page_text: The universal and perpetual principles of saving fuel in the heating, boiling,
or evaporating all kinds of fluids is the introducing of fire by means of stills
and boilers so set, fixed, and constructed with communications by tubes,
trunks, or pipes and flues that the fire may circulate, pass, and repass under,
between, in, or through the body of fluid to be heated; and these principles and
the application thereof to a still or boiler as constructed with tubes, trunks,
pipes, and flues are described and shewn in the Plan or Drawing hereon made,
and the references thereto, as follows, that is to say:-The fire is made at A,
and passing under the bottom to the back of the still or boiler where it divides
and returns to B, B, then ascending, enters the tubes C, C, in the still or
vessell, and passes through the body of the liquid, and vents itself at the
flue D. The stills or boilers may be made without heads, and with a fixt
swan neck, and it may be charged, or a person enter to clean it by a door E
in the top, so constructed as to be air-tight without lutering. The tubes,
trunks, or pipes may be more or less in number, according to the size of the
vessell. The flues may be varied in shape, and the principles may be applied
to stills and boilers of every description.
In witness whereof, I, the said Mary Howson, have hereunto set my
hand and seal, the Eighth day of July, in the year of our Lord One
thousand seven hundred and eighty-nine.
Inrolled the Eighth day of July, in. the year of our Lord One thousand
seven hundred and eighty-nine.