AN IMPROVEMENT IN VESSELS TO BE USED IN HEATING FLUIDS AND OTHER SUBSTANCES
Year: 1813

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
BRODERIP, of Great Portland Street, in the County of Middlesex, Gentleman,
send greeting.
WHEREAS His most Excellent Majesty King George the Third did, by His
Letters Patent under the Great Seal of the United Kingdom of Great Britain
and Ireland, bearing date at Westminster, the Fifth day of May, in the fifty-
third year of His reign, give and grant unto me, the said Charles Broderip,
my exors, admors, and assigns, His especial licence, sole power, sole privilege
and authority, that I, the said Charles Broderip, my exors, adñors, and assigns,
should and lawfully might, during the term of years therein mentioned, make,
use, exercise, and vend, within England, Wales, and the Town of Berwick upon
Tweed, and also in all His Majesty's Colonies and Plantations abroad, my Inven-
tion of "AN IMPROVEMENT IN VESSELS TO BE USED IN HEATING FLUIDS AND OTHER
SUBSTANCES;" in which said Letters Patent there is contained a proviso that
if I, the said Charles Broderip, shall not particularly describe and ascertain the
nature of my said Invention, and in what manner the same is to be performed,
by an instrument in writing under my hand and seal, and cause the same to be
inrolled in His Majesty's Iligh Court of Chancery within six calendar months
next and immediately after the date of the said Letters Patent, that then the
said Letters Patent, and all liberties and advantages whatsoever thereby granted,
shall utterly cease, determine, and become void, as in and by the same (relation
being thereunto had) may more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Charles Broderip, do hereby declare that the nature of my said Invention,
and the manner in which the same is to be performed, are particularly described
and ascertained as follows, that is to say:-
I do construct or make the bottoms of my said vessels respectively not flat,
nor convex, nor concave throughout, as hath heretofore been done, but so varied
as to the internal and external surfaces thereof. as to constitute or form two or
more troughs or places of capacity below or lower than the rest of the said
bottoms, against which and in the parts between the said troughs the action of
the heat and ignited vapour is allowed to be exerted. And I do make the said
troughs or places of capacity of any convenient form or figure, altho', by prefer-
ence, I do in practice adopt the semi-cylindrical figure, with an interval between
trough and trough of about one-fourth part of the measure of the diameter of
the semi-cylinder. And further, that in such cases as require the contents of
the vessel to be stirred or agitated, or in which such stirring or agitation may
be preferred or required, I do make use of a chain or chains, rake or rakes, or
similar instrument or instruments for that purpose, to act within the said troughs;
and in every case I prefer that the vessel should be filled to a little depth only
above the parts of the bottom between the said troughs, and that there should
be no side flues, or cavities, or channells, by means of which the heat can or
may apply to any space of. the surface of the vessel, which is or may be above
the fluids or other substances therein to be heated. And further, that the said
construction of the bottoms of my said vessels may be made with various
dimensions and relative situations of the several parts, according to the local
circumstances and particular uses of the same. But that the whole of my said
Invention may be fully understood and carried into effect from the description
herein-before made, and from the Drawing hereunto annexed and figured N° 1,
N° 2, N° 3, every one of which Figures denote one and the same still or vessel
for distillation, duly placed and set in its furnace, and the same letters of the
alphabet do everywhere denote the same parts or things, vizt: A denotes the
fire-place; B, B, B, B, B, the troughs, of a semi-cylindrical form, with intervals
between each; C, a wall or obstacle for obstructing the course of the flame or
ignited and other vapor or air in its passage to the remoter troughs, in order
that the effect may be made more powerful. G is a cross trough communicat-
ing with each of the other troughs, and round which the flame or ignited and
other vapor or air passes from the other troughs, and afterwards ascends the
chimney. D is the ash hole; E, the head or crown of the still; F, the man-
hole H, the chimney. And, lastly, I do declare that it is not essentially
necessary that the troughs and fire-place should be so placed as that the flame

page_text: Inrolled the Third day of November, in the year of our Lord One thou-
sand eight hundred and thirteen.