IMPROVEMENTS IN THE MANUFACTURE OF COIL AND ROLL TOBACCO, AND IN APPARATUS EMPLOYED THEREIN
Year: 1876

page_text: LETTERS PATENT to William Macargur Scott, of 23, Arthur Street, Belfast,
in the County of Antrim, Ircland, for the Invention of "IMPROVEMENTS IN
THE MANUFACTURE OF COIL AND ROLL TOBACCO, AND IN APPARATUS EMPLOYED
THEREIN "
Sealed the 21st December 1876, and dated the 25th October 1876.
PROVISIONAL SPECIFICATION left by the said William Macargur Scott
at the Office of the Commissioners of Patents on the 25th October 1876.
"
WILLIAM MACARGUR SCOTT, of 23, Arthur Street, Belfast, in the County of
Antrim, Ireland. IMPROVEMENTS IN THE MANUFACTURE OF COIL AND ROLL
TOBACCO, AND IN APPARATUS EMPLOYED THEREIN."
This Invention has for its object improvements in the manufacture of coil and roll
tobacco and in apparatus employed therein. For this purpose I subject coil or roll
tobacco to heat and pressure whilst contained in a cylinder, up through the centre
of which passes an inner tube open at both ends.
the
The inner tube is carried by a plate which closes the bottom of the cylinder;
coils or rolls are placed into the cylinder with metal plates between them, and a
piston fitting within the cylinder is placed on to the top coil or roll, the inner tube
passing up through the centre of the coils or rolls, and through the piston. Pro-
jecting from the top of the piston are lugs, through which rise up bolts attached to
the exterior of the cylinder, and there are nuts screwing on to the ends of the bolts,
by means of which the piston can be forced downwards into the cylinder.
The cylinder with the tobacco within it I place into a box or chamber heated by
steam or in other convenient way, and by reason of the central tube passing up
through the centre of the coils or rolls of tobacco, the centre of the tobacco will be
heated simultaneously with the exterior, by which the heating hastened, and at
the same time the fibre of the leaf remains uninjured.
In place of heating the cylinder by placing it into a heated chamber other
means may be adopted for simultaneously heating both the exterior of the cylinder
and its central tube, as for example, the steam or other heated fluid used for heating
may be enclosed in jackets on the exterior and at the centre of the cylinder.
When the cylinder with its contents has absorbed the necessary amount of heat,
it is removed from the heated chamber, and by turning the nuts before mentioned

page_text: the piston is forced down to the extent necessary to bring the tobacco to the desired
form. The cylinder with its contents is then exposed to the atmosphere in any
open space to allow it to cool. In place of the piston being forced down by bolts
and nuts as above described, an ordinary press may be used to force the piston down
into the cylinder, and after it has been forced down it may be locked and held in
any suitable manner to retain it whilst the tobacco is cooling.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Macargur Scott, in the Great Seal Patent Office on the 25th
April 1877.
WILLIAM MACARGUR SCOTT, of 23, Arthur Street, Belfast, in the County of
Antrim, Ireland. "IMPROVEMENTS IN THE MANUFACTURE OF COIL AND ROLL
TOBACCO, AND IN APPARATUS EMPLOYED THEREIN."
This Invention has for its object improvements in the manufacture of coil and
roll tobacco, and in apparatus employed therein. For this purpose I subject coil or
roll tobacco to heat and pressure, whilst contained in a cylinder up through the
centre of which passes an inner tube open at both ends.
The inner tube is carried by a plate which closes the bottom of the cylinder; the
coils or rolls are placed into the cylinder with metal plates between them, and a
piston fitting within the cylinder is placed on to the top coil or roll, the inner
tube passing up through the centre of the coils or rolls and through the piston.
Projecting from the top of the piston are lugs, through which rise up bolts attached
to the exterior of the cylinder, and there are nuts screwing on to the ends of the
bolts, by means of which the piston can be forced downwards into the cylinder.
The cylinder with the tobacco within it I place into a box or chamber heated by
steam or in other convenient way, and by reason of the central tube passing up
through the centre of the coils or rolls of tobacco the centre of the tobacco will be
heated simultaneously with the exterior by which the heating is hastened, and at
the same time the fibre of the leaf remains uninjured.
In place of heating the cylinder by placing it into a heated chamber other means
may be adopted for simultaneously heating both the exterior of the cylinder and
its central tube, as for example, the steam or other heated fluid used for heating
may be enclosed in jackets on the exterior and at the centre of the cylinder.
When the cylinder with its contents has absorbed the necessary amount of heat
it is removed from the heated chamber, and by turning the nuts before mentioned
the piston is forced down to the extent necessary to bring the tobacco to the desired
form. The cylinder with its contents is then exposed to the atmosphere in any
open space to allow it to cool. In place of the piston being forced down by bolts
and nuts as above described an ordinary press may be used to force the piston down
into the cylinder, and after it has been forced down it may be locked and held in
any suitable manner to retain it whilst the tobacco is cooling
In order that my said Invention may be most fully understood and readily carried
into effect, I will proceed to describe the Drawings hereunto annexed.
Figure 1 is a plan, and Figure 2 is a vertical section of apparatus constructed
according to my Invention, and intended to be used in the manufacture of coil and
roll tobacco.
a; a, is a cylinder open at both ends, but receiving in order to close these ends
when the apparatus is in use, a bottom plate b and a piston c. The bottom plate
is supported upon an internal flange a¹ formed around the interior of the cylinder,
and it has a hole in the centre to receive the inner tube d. The tube d which is

page_text: open at both ends is screwed into a boss d² cast upon the plate b; c, e, are bolts
passing through lugs upon the cylinder a, and also through other lugs upon the
piston c; these bolts receive nuts e¹, e¹; f, f, are spaces in which is the coil or roll
tobacco to be heated, and g, g, are plates separating one layer from another.
The apparatus having been filled is placed in the heated chamber and is kept
there until it has attained an uniform temperature throughout it and its contents,
it is then withdrawn and the nuts are screwed up so as to apply a heavy pressure
to the tobacco, which is left under pressure to cool gradually. The application of
the open tube or core d facilitates the uniform heating of the material, and so
prevents injury to the tobacco, and renders both the heating and the cooling more
expeditious.
Having thus described the nature of my said Invention and the manner of
performing the same, I would have it understood that I claim the method of and
apparatus for treating coil or roll tobacco substantially as described.
In witness whereof, I, the said William Macargur Scott, have hereunto set my
hand and seal, this Twenty-fourth day of April, in the year of our Lord
One thousand eight hundred and seventy-seven.
WILLIAM MACARGUR SCOTT. (LS.)