Improved Apparatus for Stemming or Dividing or Splitting the Stalk or Mid Fibre of Leaf Tobacco, at the same Time Crushing the Stalk.
Year: 1884

page_text: Improved Apparatus for Stemming or Dividing or Splitting the
Stalk or Mid Fibre of Leaf Tobacco, at the same Time
Crushing the Stalk.
I ALEXANDER THOMAS LENDRUM of 6 Mountview Terrace Cork, in the Co. of
Cork Tobacco Manufacturer do hereby declare the nature of my Invention for
IMPROVED APPARATUS FOR STEMMING OR DIVIDING OR SPLITTING THE STALK OR
MID FIBRE OF LEAF TOBACCO AT SAME TIME CRUSHING THE STALK to be as
follows:-
Improved apparatus for stemming or dividing or splitting the stalk or mid fibre
of leaf tobacco at the same time crushing the stalk without removing the stalk
from the leaf in a simple effectual and economical manner and consists-First—In
mounting on a suitable stand or frame two rollers of iron, brass or other suitable
material one of which is provided with a deep groove round its circumference and
at the apex of this groove is formed a deep cut or slot for the purpose presently
described.
The second roller is provided with a beede or is V shaped round its periphery
so that it may gear into groove of the first described roller and on the apex of the
beede of the second roller is arranged a circular knife or blade which works into
the cut or slot formed in the groove of the first roller.
Secondly. The stemming arrangement consists in placing on said stand or frame
a slotted pipe or tube to which is fixed a suitable block to receive a hammer-
shaped knife which is fixed to an encentric rod which works in said pipe
or tube.
The action of the apparatus may be described thus;-when dividing or splitting
and crushing the stalk or mid fibre of leaf tobacco without removing the stalk
from the leaf. The tobacco leaves are taken singly and fed by the hand through
the two rollers after passing through which the stalk is divided and crushed in the
leaf, which is then ready for manufacturing purposes.
The stemming arrangement consists in taking the tobacco leaf singly by the
hand, and placing the stalk on the block upon which the hammer-shaped knife
falls, the stalk is thereby cut and held, the leaf is then quickly withdrawn after
which the hammer lifts and allows the extracted stalk to fall.
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page_text: I, ALEXANDER THOMAS LENDRUM, of 6, Mountview Terrace, Cork, in the Co.
of Cork, Tobacco Manufacturer, do hereby declare the nature of my Invention for
"IMPROVED APPARATUS FOR STEMMING OR DIVIDING OR SPLITTING THE STALK OR
MIDFIBRE OF LEAF TOBACCO, AT THE SAME TIME CRUSHING THE STALK" and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
This Invention has reference to improved apparatus for stemming, dividing, or
splitting the stalk, or mid-fibre, of leaf tobacco, at the same time crushing the
stalk, without removing the stalk from the leaf; in a simple, effectual, and
economical manner. It consists, firstly, in mounting on a suitable stand or frame
two rollers of iron, brass, or other suitable material, one of which is provided with
a deep groove round its circumference, and at the apex of this groove is made a
deep incision for the purpose presently described. The second roller is provided
with a beede round its periphery, so that it may gear into groove of first described
roller, and on the apex of the beede of the second roller is carried a circular knife
or blade which works into the incision in the groove of the first roller. Secondly.-
The stemming arrangement consists in placing on said stand or frame a slotted
pipe or tube to which is fixed a suitable block to receive a hammer-shaped
knife which is fixed to an encentric rod which latter works in said pipe, or tube.
The action of the apparatus may be described thus:-When dividing and
crushing the stalk or mid-fibre of leaf tobacco without removing the stalk from
the leaf, the tobacco leaf is taken singly and fed by the hand through the two
rollers, and is immediately operated upon by the circular cutting knife which
effectually splits or divides the leaf, crushing at the same time the stalk and
rendering the leaf fit for manufacturing purposes.
The stemming operation consists in taking the tobacco leaf singly by the hand
and placing the stalk on the block upon which the hammer-shaped knife falls; the
stalk is thereby cut and held. The leaf is then quickly withdrawn, after which
the hammer lifts and allows the extracted stalk or portion of stalk to fall.
In order that my said Invention may be more readily understood, I will describe
the accompanying Drawings:-Fig. 1 represents a side view of the complete
apparatus or machine from the driving side; Fig. 2, an opposite side view, showing
part only of the stand: Fig. 3 is an end view; Fig. 4, a plan; and Fig. 5 a
sectional view of the cutting knife or roller. Similar letters refer to similar parts
in all the views. A and B represent the two rollers mounted on spindles 1 and 2.
The roller B is formed of two halves 1. l., as shown in sectional detail, Fig. 5,
between which is embraced the steel cutting disc d. so that when the two rollers
are operating in position the periphery of the cutting disc will enter the incision in
the roller A. Rotary motion is imparted to these rollers by means of the pulley C
through the intervention of the spur gear seen in Fig. 2. C₁ is a loose pulley.
H is the revolving brush mounted on spindle 3 for the purpose of cleaning roller A.
A circular saw is carried in the centre of this brush, the teeth of which enter and
keep the incision of roller clear. An inclined piece of netal D is arranged in
front of the combined rollers for the purpose of feeding the leaf to the rollers.
E is the slotted pipe or tube used for stemming the leaf. h is the spring block on
which plays the hammer-shaped knife g. This knife is attached to a vertical rod
in the interior of the tube or pipe, the lower extremity of which is connected to
the heart b with which the eccentric f gears, whereby the up-and-down motion is

page_text: communicated to the hammer-shaped knife. The eccentric is worked from the
main driving shaft by means of the pitched chain c. c. (Fig. 1).
In the process of stemming, the tobacco stalk is inserted between the block h
and knife g, and is operated on in the manner herein before described.
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
1 The combination in a machine of the roller A and knife-roller B, arranged,
constructed, and operating, substantially as shown for the purpose set
forth.
2nd The construction and application of the knife-roller B substantially for the
purpose described.
3rd The construction and application of the standard or tube E substantially for
the purpose specified.
4th The combination in a machine of the standard or tube E, arranged, con-
structed and operating, substantially in the manner and for the purpose
set forth.
Dand
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