IMPROVE. MENTS IN DRY DISTILLATION
Year: 1882

page_text: LETTERS PATENT to John Jameson of Akenside Hill in the City and County
of Newcastle upon Tyne Consulting Engineer for an Invention of "IMPROVE.
MENTS IN DRY DISTILLATION."
PROVISIONAL SPECIFICATION left by the said John Jameson at the Office
of the Commissioners of Patents on the 23rd October 1882.
JOHN JAMESON of Akenside Hill in the City and County of Newcastle upon
Tyne Consulting Engineer "IMPROVEMENTS IN DRY DISTILLATION
دو
My Invention consists in exposing the materials to be distilled to surface heat
as coal is usually, exposed in a coke oven in the manufacture of coke or as other
matters are exposed to heat in reverberatory furnaces, and in extracting by
exhausting from the lower part of the containing chamber, pan or vessel during
the application of heat the gas or volatile products produced or a part thereof.
am thus enabled in a cheap and simple form of apparatus to extract comparatively
undiluted gas and volatile products from such material as shale, small steam coal
or coal pit waste not adapted to the manufacture of coke or to extract products
obtainable from destructive distillation of sawdust, peat or other matters. If the
material to be distilled may with advantage be so treated I mix with it a portion
of coal so as to produce or augment the heat required of otherwise to assist the
process. My Invention is applicable to the obtaining of volatile products
disengaged in the roasting of ores or for such purposes as obtaining comparatively
pure carbonic acid from limestone or for sublimations. I regulate the degree of
suction according to the matters operated on and the result required.
1

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Jameson in the Great Seal Patent Office on the 23rd April
1883.
JOHN JAMESON of Akenside Hill in the City and County of Newcastle-upon-
Tyne Consulting Engineer "IMPROVEMENTS IN DRY DISTILLATION
"
My Invention consists in exposing the materials to be distilled to surface hont
as Coal is usually exposed in a coke oven in the manufacture of Coke or as other
matters are exposed to heat in reverberatory furnaces and in extracting by
exhausting from the lower part of the containing chamber, pan, or vessel during the
application of heat the gas or volatile products produced or a part thereof. I ain
thus enabled in a cheap and simple form of apparatus to extract comparatively
undiluted gas and volatile products from such, material as shale, small steam coal or
coal pit waste not adapted to the manufacture of Coke or to extract products
If the
obtainable from destructive distillation of saw dust peat or other matters.
material to be distilled may with advantage be so treated I mix with it a portion
of Coal'so as to produce or augment the heat required or otherwise to assist the
process. My Invention is applicable to the obtaining of volatile products disengaged
in the roasting of ores or for such purposes as obtaining comparatively pure
carbonic acid from limestone or for sublimations. I regulate the degree of suction
according to the matters operated on and the result required.
Having thus described the nature of my Invention I will now proceed more
particularly to describe the manner in which it is to be practically carried into
effect
In the Specification of a patent granted to me bearing date the twenty fifth day.
of April One thousand eight hundred and eighty two N° 1947 for "Improvements
in the Manufacture of Coke" I have described a method whereby the volatile
products liberated from Coal in the ordinary process of manufacturing Coke may
be extracted from the oven and that process is applicable in case where from the
combustion of a part of the material to be coked sufficient beat is produced
adequately to carry on the coking process. My present Invention is applicable to
matters not adapted to the manufacture of coke For the treatment of such
matters 1 construct an apparatus somewhat similar to a reverberatory furnace
having a pan or chamber formed of brick work or other material with pipes or
passages at the bottom and with a furnace or other source of heat discharging heat
into the upper part of the reverberatory chamber so as to impart heat to the
material to be treated. The pan or chamber being charged with the material to be
operated upon in sufficient depth of material, dependent on its nature and the
nature of the object sought to be obtained and heat being applied an evolution of
volatile products will occur and by means of slight suction applied by a fan or
blower or other convenient appliance to the pipes and passages formed in the lower
part of the pan or chamber I draw the effluent gases and vapours downwards
through the mass of material being treated regulating the suction so as
approximately to withdraw the quantity formed or more or less than this quantity
according as it may be desired to make very efficient extraction and recovery of
such products or to extract the products or a part of them in a state more or less
unmixed with furnace gases. Thus for instance in the extraction of gas, oil and
ammonia from shale, I may either so restrict the suction as to obtain a rich burning
gas with no admixture of air and sacrifice a part of the product in doing so or I
may by increased suction draw part of the furnace gases through the mass of shale
so as to obtain a larger yield of oil but a less valuable gas or I may so regulate the

page_text: suction and depth of material as approximately to secure a mean result between
these two extremes.
I thus accomplish the separation of products of dry distillation from materials
not adapted for coking while these are exposed to the open heat of the fire, open
draught to the chimney and if desired with an open door to the air and with a
minimum expenditure of power.
Having now described and particularly ascertained the nature of my said
Invention and the manner in which the same is or may be used or carried into
effect I would observe in conclusion that what I consider to be novel and original.
and therefore claim as the Invention secured to me by the hereinbefore in part
recited Letters. Patent is :-
The herein before described Improvements in dry distillation consisting in
exposing the materials to be distilled to surface heat from a separate furnace or
fire and extracting the distillates from the lower part of the containing vessel pan
or chamber substantially as hereinbefore described.
In witness whereof I the said John Jameson have to this my Specification
set my hand and seal this nineteenth day of April One thousand eight
hundred and eighty three.
Witness
JOHN BOURNER.
Clerk
Forest Hall
JOHN JAMESON (L.S.)