A CALORIFIC BATH
Year: 1852

page_text: LETTERS PATENT to Robert Hazard, of No. 14, Lincoln's Inn
Fields, in the County of Middlesex. Warming and Ventilating
Engineer, for the Invention of "A CALORIFIC BATH."
PROVISIONAL SPECIFICATION left by the said Robert Hazard at
the Office of the Commissioners of Patents, with his Petition, on
the 4th October 1852.
I. ROBERT HAZARD, do hereby declare the nature of the said Invention
for "A CALORIFIC BATH" to be as follows:-
A bath so constructed that the furnace is placed directly underneath
it, and the flues, by corrugation or use of tubes, so arranged as to
present the largest amount of fire surface to the water. The furnace
is constructed for the combustion of prepared fuel, spirit, or other
combustable material.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Robert Hazard in the Great Seal Patent Office,
on the 4th April 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
ROBERT HAZARD, of No. 14, Lincoln's Inn Fields, in the County of
Middlesex, Warming and Ventilating Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourth day of October, in the
year of our Lord One thousand eight hundred and fifty-two, in the
sixteenth year
of Her reign, did, for Herself, Her heirs and successors.
give and grant unto me, the said Robert Hazard, Her special license
that I, the said Robert Hazard, my executors, administrators, and
assigns, or such others as I, the said Robert Hazard, my exccutors,
administrators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "A CALORIFIC BATH," upon
the condition (amongst others) that I, the said Robert Hazard, by an
instrument in writing under my hand and seal, should particularly
describe and ascertain the nature of the said Invention, and in what
manner the saine was to be performed, and cause the same to be
filed in the Great Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Robert Hazard, do hereby
declare the nature of my said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained
in and by the following statement, and reference being had to the
Drawings hereunto annexed, and the figures and letters marked thereon,
(that is to say):
My Invention consists of an improvement in the mode of producing
a hot bath, by means of a furnace placed directly underneath the
bath. and the flues, by corrugation or use of tubes, so arranged as

page_text: to present the whole of the lower, surface of the water to the action
of the fire, whereby a hot bath is produced with more ease than
any other method hitherto known, and is applicable for all lavatory
purposes.
And in order that the Invention may be fully understood and
carried.into effect, I will proceed to describe the Drawings hereunto
annexed.
Figure 1, represents a Drawing of my bath when complete; a
representing the drawer or box or furnace when closed; and c, the door
of the smoke flue for cleansing same opposite to the passage leading to
the chimney.
Figure 2, represents a lateral section of the same.", the drawer or
box or furnace within which the prepared fuel or other combustable
material is placed; B. the passage by which the flame, heated air..
smoke, &c. passes away directly under the corrugated surface of the
bath till it arrives at c, where it joins or is conducted to a flue, chimney,
or some other mode of escape. D, is a bottom, of the same material
as the bath, with holes at various intervals to allow the water, as it
becomes heated, to mix with the water in the bath.
Figure 3, represents a transverse section of the bath at W, W.
shewing the corrugations, and the passage for the flame, heated air.
smoke, &c., B, B, B, B. C, the handle of the soot door; and E, the
smoke pipe leading into the chimney or other mode of escape.
Figure 4, represents a transverse section of a bath where tubes
instead of corrugations are made use of.
I would remark that, although I have shewn the exact particulars of
construction of every part, I do not confine myself thereto, nor to any
particular form of bath, so long as the peculiar character of a furnace
placed directly underneath the bath, and the flues, corrugations, or tubes
so arranged as to present the largest amount of fire surface to the
water And that what I claim is, the placing the furnace directly
underneath the bath, and the flues, by corrugation, tubes or otherwise,
so arranged as to present the largest amount of fire surface to the
water. And that I disclaim any intention to include as part of my

page_text: Invention the prepared fuel, spirit, or other combustable material by
the combustion of which my bath will be heated.
In witness whereof, I, the said Robert Hazard, have hereunto set
my hand and seal, this Second day of April, One thousand eight
hundred and fifty-three.
Signed and sealed by the above-
named Robert Hazard in the
presence of
HENRY COWLARD,
ROBERT HAZARD. (L.S.)
14, Lincoln's Inn Fields,
Sol.