IMPROVEMENTS IN THE HEATING OF STILLS OR BOILERS EMPLOYED IN THE DISTILLATION OF COAL TAR AND OTHER HYDROCARBON SUBSTANCES
Year: 1884

page_text: I HENRY WILLIAM FENNER of 7 Vanbrugh Park Road West, Blackheath in the
County of Kent Manufacturing Chemist do hereby declare the nature of my
invention for IMPROVEMENTS IN THE HEATING OF STILLS OR BOILERS EMPLOYED
IN THE DISTILLATION OF COAL TAR AND OTHER HYDROCARBON SUBSTANCES to be
as follows:-
The object of my invention is to effect the better heating of stills or other vessels
for the distillation of tar or other hydrocarbon bodies particularly such as require
very high degrees of heat for their distillation by distributing the heating gases
more evenly over the under and outer surfaces of the stills and preventing the
concentration of the heat too much at any point.
This I effect by supporting the still or vessel on a support or wall of firebrick
which is applied below the side walls of such still and from which the concave
bottom or dome bottom of the still springs.
The heated gases and flame passes from the fire place and is deflected or con-
ducted to, impinge on a firebrick projection from a central firebrick shaft or passage
and then pass around between such central firebrick shaft or passage and the
surface of the still to the back or opposite side then the products of combustion or
heating gases are deflected by a domed or curved surface to pass into such central
shaft or passage at such opposite side by means of an opening left therein and
thence these gases pass down to a channel which conducts them to other channels
or passages around the still sides and thence away to the usual conduit for con-
veyance away.
By these means the heating gases are more evenly distributed over the under
surface and sides of the still and the burning of the still is avoided whilst the
operation of the invention is attended with economy of fuel better combustion of
the smoke and better control of the beating means is afforded.
A

page_text: "
COMPLETE SPECIFICATION.
I HENRY WILLIAM FENNER of 7 Vanbrugh Park Road West, Blackheath in the
County of Kent, Manufacturing Chemist do hereby declare the nature of my
invention for IMPROVEMENTS IN THE HEATING OF STILLS OR BOILERS EMPLOYED
IN THE DISTILLATION OF COAL TAR AND OTHER HYDRO-CARBON SUBSTANCES and
in what manner the same is to be perforined, to be particularly described and
'ascertained in and by the following statement :-
The object of my invention is to. effect the better heating of stills or other vessels
for the distillation of tar or other hydro-carbon bodies particularly such as require
very high degrees of heat for their distillation by distributing the heating gases
more evenly over the under and outer surfaces of the stills and preventing the
concentration of the heat too much at any point.
This I effect by an improved arrangement of "setting" or means of supporting
the still or vessel, shewn in sectional elevation by Figure 1 and cross section taken
on the line A A of Figure 1 by Figure 2. The still a is set on a support or wall
of firebrick b which is applied below the side walls of such still a' and from, which
the concave bottom or dome bottom a of the still a springs.
The heated gases and flame pass from the fire place c in the direction of the
arrows and as will be seen thereby and is deflected or conducted to impinge on a
firebrick projection d' from a central firebrick shaft or passage d and then pass
around between such central firebrick shaft or passage d. and the under surface a¹
of the still to the back or opposite side 2 thence the products of combustion or
heating gases are deflected by the domed or curved surface d² to pass up d³ into
such central shaft or passage d at such opposite side d' by means of an opening d⭑
left therein and thence these gases pass down to a channel as indicated by dotted
lines which conducts them to other channels or passages e around the sides of the
still a and thence away to the usual conduit say f for conveyance away.
By these means the heating gases are more evenly distributed over, the whole
under surface and sides of the still and the burning of the still is avoided whilst
the operation of the invention is attended with economy of fuel, better combustion
of the smoke and better control of the heating means is afforded.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
'I claim is
Improved means of distributing and applying heated gases employed in heating
the stills or boilers for the distillation of coal tar or other hydro-carbon substances
as set forth.-
Dated this 13th day of July 1885.
W BROOKES & SON,
55 & 56, Chancery Lane, London,
Agents for the said Henry William Fenner.