CERTAIN IMPROVEMENTS IN APPARATUS FOR HEATING PUBLIC AND PRIVATE BUILDINGS
Year: 1842

page_text: HAZARD'S SPECIFICATION.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I; ROBERT
HAZARD, of Clifton, in the County of Somerset, Confectioner, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Twenty-first day of March, in the fifth year of Her reign, did,
for Herself, Her heirs and successors, give and grant unto me, the said
Robert Hazard, Her especial licence, full power, sole privilege and authority,
that I, the said Robert Hazard, my exors, adñiors, and assigns, or such others
as I, the said Robert Hazard, my exors, adiiors, 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 "CERTAIN IMPROVEMENTS IN APPARATUS FOR HEATING PUBLIC AND PRIVATE
BUILDINGS;" in which said Letters Patent is contained a proviso that I, the
said
said Robert Hazard, shall cause a particular description of the nature of my
Invention, and in what manner the same is to be performed, to be inrolled
in Her said Majesty's High Court of Chancery within six 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
Robert Hazard, do hereby declare that the nature of my said Invention, and
the manner in which the same is to be performed, are fully described and

page_text: ascertained in and by the following statement thereof, reference being had to
the Drawing hereunto annoxed, and to the figures and letters marked thereon
(that is to say):-
Tho improvements effected by my Invention are as follows, namely, that a
building of any size may be effectually warmed by a mild and general heat
without the intervention of steam or hot water passing through tubes in order
to obtain a large radiating surface at a low temperature. By my Invention, in
allowing the smoke to pass through a number of tubes, I am enabled to extract
nearly the whole of the heat from the smoke, thereby preventing the possibility
of endangering the buildings from over heated flues, at the same time I am
enabled to burn the coals at slow combustion, so that attention to fires is not
required more than once in six or twelve hours. The forms and mode will be
fully understood by reference to the Drawing hereunto annexed.
DESCRIPTION OF THE DRAWING.
Figure 1 represents a section of a fire-proof chamber, commonly known as a
hot air chamber, in which is my improved apparatus. A, a channel con-
nected with the external part of the building which admits tho fresh air, and
after passing over the tubes becomes heated, and then sent off through the
opening at B into the rooms requiring warmth. C, a furnace or fire-box made
of iron and lined with fire-brick, in order to prevent the immediate contact of the
fire with the iron. D, D, D, D, are tubes connected to the fire-box through
which the smoke escapes, traversing the whole of the tubes, and enters into the
chimney comparatively cool, the heat being extracted by the surrounding atmo-
sphere. D, damper doors, for occasional cleaning out the flues. E, hopper
door for feeding the fire. F, ash-pit, with door furnished with a slide for the
admission of air to regulate combustion. Figure 2, a section at W, W,
shewing the ends of pipes. Figure 3, n front elevation, shewing one of the
damper doors.removed for cleaning. Figure 4 is the same section from W, W,
only representing flat flues. Figures 5 and 6 nre perspective views of the pipes
as connected to the cross chambers with damper doors, &c.
What I claim is the mode of arranging a series of metal flues in connection
with a furnace, such flues having common openings at D for cleansing, as above
described.
In witness whereof, I, the said Robert Hazard, have hereunto set my
hand and scal, this Twenty-first day of September, in the year of our
Lord One thousand eight hundred and forty-two.
ROB (L.S.) HAZARD.

page_text: AND BE IT REMEMBERED, that on the Twenty-first day of September,
in the year of our Lord 1842, the aforesaid Robert Hazard came before
our said Lady the Queen in Her Chancery, and acknowledged the Specifica-
tion aforesaid, and all and everything therein contained and specified, in form
above written. And also the Specification aforesaid was stamped according to
the tenor of the Statute made for that purpose.
Inrolled the Twenty-first day of September, in the year of our Lord One
thousand eight hundred and forty-two.