A NEW AND IMPROVED METHOD OF COMMUNICATING HEAT OR WARMTH TO HOT-HOUSES, GREEN-HOUSES, CHURCHES, DWELLING-HOUSES, MANUFACTORIES, AND ALL OTHER BUILDINGS, IN ANY DEGREE REQUIRED FOR EITHER OF THOSE PURPOSES
Year: 1791

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN HOYLE'
the younger, of the Parish of Halifax, in the County of York, Dyer, 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 Seventh day of July, in the thirty-first year of His reign, did
give and grant unto me, the said John Hoyle, His especial licence, that I, the
said John Hoyle, during the term of years therein expressed, should and law-
fully might use, exercise, and vend, within England and Wales and the Town
of Berwick upon Tweed, my Invention of "A NEW AND IMPROVED METHOD OF
COMMUNICATING HEAT OR WARMTH TO HOT-HOUSES, GREEN-HOUSES, CHURCHES,
DWELLING-HOUSES, MANUFACTORIES, AND ALL OTHER BUILDINGS, IN ANY DEGREE
REQUIRED FOR EITHER OF THOSE PURPOSES;" in which said Letters Patent there
is contained a proviso obliging me, the said John Hoyle, 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 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
fully and at large appear.
NOW KNOW YE,. that in compliance with the said proviso, I, the said
John Hoyle, do hereby declare that my said Invention is described in
manner following (that is to say) :-

page_text: In any place (properly secured from accidents by fire) contiguous to the
room or building required to be warmed or heated, place a boiler or steam
kettle of the common construction, except that the bottom thereof is to
consist of a spiral flue.or funnel, at the mouth of the external circle of
which is to be a small grate or receptacle for the fuel; the heat and
flame being thus confined, and performing the several evolutions through
the funnell, will generate the steam' much sooner and at a much less expen-
diture of fuel than by any other method; the smoke is conveyed away by a
perpendicular continuation of the funnell from about the centre or middle of
the boiler into a chimney, or otherwise, as situation may require. From any
part of the boiler above the surface of the water one or more pipes or tubes
to be charged with steam from the boiler are to ascend, or be otherwise con-
ducted into, round, or through the room or building to be warmed or heated, and
are to be either attached to the cieling or cornice, or placed lower, as may be
best approved of, observing that from their highest elevation they must form
a gentle declivity, so as more readily to deposit the condensed steam or water
into a cistern or reservoir, into which they are to be for that purpose continued,
and which reservoir is to be placed as near to the boiler as circumstances will
admit.. It is obvious that the heat dispensed will be in proportion to the
length or quantity of the pipes or tubes introduced into the place intended to
be warmed; the boiler is to have a communication with the reservoir by means
of a pipe intended to supply the water necessary, and that this may be properly
and regularly effected in proportion to its evaporation and escape, a cock and
floating ball is fixed in the same manner as in cisterns or reservoirs within side
the boiler, which will at all times preserve the water in the boiler nearly on
the same level, and which contrivance is equally applicable to all boilers
for generating steam for any purpose whatsoever. In order that the heat
thus communicated may be checked or regulated, and the room or building
kept in a due and uniform state of temperature, cocks or valves are disposed
in such part of the pipes or tubes most convenient, by which means the
supply of heat may be either decreased or entirely sett off or stopped, in which
latter case the steam may be directed to several other advantageous uses, such
as blowing of all kinds of fires, or in giving force to such works as require
power to put them in motion, by means of one or more other pipes or tubes
branching from the boiler in any necessary direction, which pipes or tubes are
not to be constructed of the same diameter throughout, but must be formed
large and capaciou sat that end which is attached to the boiler, and must run

page_text: tapering (in proportion to their required length), so as to confine the steam
in so narrow compass that it may have considerable force in its issue.
In witness whereof, I, the said John Hoyle the younger, have hereunto
set my hand and seal, this Fifteenth day of July, One thousand seven
hundred and ninety-one