IMPROVEMENTS IN THE CONSTRUCTION OF TOBACCO TWIST ROLLS, AND IN THE MEANS OR APPARATUS FOR FORMING OR MOULDING THE SAME
Year: 1879

page_text: LETTERS PATENT to Richard Wood, of Leeds, in the County of York, for the
Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF TOBACCO TWIST
ROLLS, AND IN THE MEANS OR APPARATUS FOR FORMING OR MOULDING THE
SAME"
Sealed the 11th November 1879, and dated the 14th May 1879.
PROVISIONAL SPECIFICATION left by the said Richard Wood at the Office
of the Commissioners of Patents on the 14th May 1879.
RICHARD WOOD, of Leeds, in the County of York. "IMPROVEMENTS IN THE
CONSTRUCTION OF TOBACCO TWIST ROLLS, AND IN THE MEANS OR APPARATUS FOR
FORMING OR MOULDING THE SAME."
According to my improvements I dispense with the linen cloths, and also the
ropes which have hitherto been employed for retaining the rolls in form during the
pressing operation, and I produce a symmetrical form of roll instead of the hitherto
irregular shape; also a great saving is effected in the time occupied and labour
in manufacturing these rolls, and the properties contained in the tobacco are
retained.
I provide a mould, by preference of metal, though not necessarily so, which is
recessed to the required form and depth of the roll. Within this, coils or layers of
"twist" are laid one above the other to the required thickness. Above the
"twist," and within the mould is placed the presser plate; after this it is sub-
mitted to pressure in a hydraulic or other press, and there allowed to remain for
some days. When the tobacco twist has been pressed for the required length of
time, which is about half of that taken up by the ordinary means, the moulds are
taken from the press, the presser plate taken out, and the forms of twist rolls easily
removed, presenting a more convenient shape for retailing purposes.

page_text: Fig. 1 is an elevation showing the various layers of tobacco twist prepared for
the steaming and pressing operations; Fig. 2, a sectional elevation, shewing the
same placed in the cylinder or mould, and ready for the steaming operation; Fig. 3
represents the tobacco twist after being pressed; Fig. 4, a sectional plan through
A, B, Fig. 2.
a is the cylinder or mould, which is by preference a cylindrical shape, and of
metal, which may be varied in length and diameter to suit the various sizes of
tobacco twist rolls. Previous to the pressing operation the tobacco having been
coiled together to a suitable thickness in layers (each layer being separate or
distinct from the other), the covers b and c are then employed to close up the ends
of the mould, and for this purpose are screwed down to the face, and connected
with each other by means of the tube d, through which steam is passed for the
purpose of heating the material more evenly, and preparing it for the pressing
operation. The employment of this tube d is more particularly necessary for large
rolls, but may be dispensed with when preferred for small rolls. When this tube d
is employed I screw one of the covers onto it, as shewn at Fig. 1. On it I coil the
separate layers e previous to them being placed in the mould. After the operation
of steaming is completed I take off one cover and slip onto the tube d the pressing
block or plate f, as shewn at Fig. 3. After this operation it is taken to the press
and kept under pressure for a considerable time, but by the aforesaid operations
the time required in the press is much reduced. The presser block or plate f may
The covers b and c may be attached to the face of the
be either of wood or metal.
mould by, any convenient means.
Having now described the nature of my said Invention, and described by the
aid of Drawings how the same may be carried into practice, I would have it under-
stood that I do not limit myself to the precise details or configuration of the parts

page_text: I have described and shewn, as the same may be varied or modified without
departing from the nature or principle of my said Invention, but what I do claim
and desire to be secured to me by Letters Patent is,-
First. The arrangement, construction, and application of the cylinder or mould a
and parts connected therewith for preparing, forming, and pressing tobacco twist
rolls, consisting of two or more layers, substantially as herein set forth.
Second. The construction of tobacco twist rolls, consisting of two or more layers,
each layer being a separate and distinct coil, substantially as herein set forth.
In witness whereof, I, the said Richard Wood, have hereunto set my hand
and seals, this Twelfth day of November, in the year of our Lord One
thousand eight hundred and seventy nine.
RICHARD WOOD. (L.S.)
RICHARD WOOD. (L.S.)