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Патент USA US2113514

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April 5, 1938.
D. w. MOLINS
TOBACCO FEEDING APPARATUS
Filed June 3, 193'?
2,113,514
'
4 Sheets-Sheet l
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April 5, 1938.
‘
D. w. MOLINS
‘2,113,514
TOBACCO FEEDING APPARATUS
Filed June 5, 1957
4 Sheets-Sheet 2
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April-5, 1938.
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TOBACCO FEEDING APPARATUS
Filed June 3, 1937‘
4 Sheets-‘Sheet 3
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April 5, 1938,
D. w. MOLINS
2,113,514
TOBACCO FEEDING APPARATUS
Filed June 3, 1937
4 Sheets-Sheet4
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Patented Apr. 5, 1938
2,113,514
UNITED STATES
PATENT OFFICE
2,113,514
TOBACCO FEEDING APPARATUS
Desmond Walter Molins, Deptford, London, Eng
land, assignor to Molins Machine Company,
Limited, London, England
Application June 3, 1937, Serial No. 146,295
In Great Britain April 9, 1936
4 Claims.
This invention is for improvements in or re—
lating to tobacco feeding apparatus.
According to the present invention there is
provided in a tobacco feeding apparatus, a down
5 wardly directed passage in which tobacco is built
up endwise, the passage having an inlet and an
outlet at the lower end of the passage, means to
direct tobacco into the passage and a transfer
element located at the outlet of the passage to
10 receive the tobacco as the latter issues from the
passage, said passage having opposed surfaces
movable towards and away from one another
and having components of movement in the
direction of movement of the tobacco through the
15 passage at that time when the surfaces are closest
together to assist in feeding the tobacco towards
the transfer element.
The means to direct the tobacco into the pas
sage is arranged to operate in a manner such
,0 that the tobacco is directed into the passage at
a speed greater than that at which it issues from
the passage, whereby the tobacco is at least partly
built up by impact of the tobacco particles
directed against that end of the tobacco in said
passage.
According to a further form of the invention
there is provided a tobacco feeding apparatus
comprising a downwardly directed passage hav
ing a transfer element located at its lower and
3O
(01. 131—39)
The movable surface may be supported for
movement in closed paths (e. g., curved closed
paths by means of rotatable cranks) in a manner
such that throughout their movement the sur
faces are parallel to one another and parallel to
their initial positions.
The term “desired mass” where used herein
and in the appended claims means the weight
or substantially the weight per unit of super?cial
area which it is desired that the‘carpet shall 10
have.
The means to direct the tobacco into the pas
sage at a high speed may comprise a fast moving
surface (e. g., a rotating carded or pronged roller
operative to pick tobacco from a conveyor and to 15
direct the tobacco into the passage in the form
of a shower).
The tobacco directed into the passage may be
moved towards the passage by a fast moving
endless conveyor. The tobacco may be formed as
a stream on the surface of the conveyor, such
stream being at all points or at substantially all
points below the desired mass (e. g., in the form
of substantially separate shreds or particles of
tobacco).
25
The invention will be described by way of
example with reference to the accompanying
drawings, in which:—
Figure 1 is a diagranunatic side elevation of a
outlet end and having opposed surfaces, parallel
tobacco feeding mechanism.
to or substantially parallel to one another and
movable towards and away from one another and
enlarged scale.
having components of movement in the direction
of movement. of the tobacco through the passage
at the time when the surfaces are closest together
to assist in feeding the tobacco towards the trans
fer element, means to direct tobacco into the
passage at a greater speed than it is removed
from the passage by the transfer element in such
40 manner that tobacco is compacted in the passage
at least partly due to the change of momentum
of the tobacco particles when the speed of the
tobacco in said passage is reduced to a speed be
low that at which the tobacco is fed into the
Figure 2 shows a detail of Figure 1 drawn to an
Figure 3 is a view of Figure 1 looking in the
direction of the arrow 3, Figure 1.
Figure 4 is a diagrammatic side elevation of a
modi?ed form of tobacco feeding apparatus.
Like reference numerals refer‘to like parts
throughout the speci?cation and drawings.
Referring to Figures 1 to 3, tobacco is placed
in a hopper 5 and the mass in the hopper 5 is
- passage, without the application of any positive
replenished at predetermined intervals from a
store container 6 by means of a pivoted flap 1.
A pronged element 8 is arranged between the
hopper 5 and the store container 6 and is ar
ranged to regulate the quantity of tobacco which
pressure or ramming action to the tobacco, and
the tobacco in said passage is brought to a thick
ness which is equal to the minimum distance
The mass of tobacco in the hopper 5 is supported
by a carded feeding roller 9 which presses the
between the said opposed surfaces.
mass of tobacco towards the surface of a carded
The tobacco directed into the passage is prefer
ably at all points or substantially at all points
below the desired mass (e. g., in the form of sub
stantially separate shreds or particles of tobacco).
The means to direct the tobacco into the passage
55 may be wholly external of the passage.
30
is supplied to the hopper 5 by the pivoted flap 1.
combing roller 10, the carding of which engages 50
with the mass of tobacco and extracts a quantity
therefrom. The tobacco extracted from the mass
by the carding of the combing roller 10 is carried
upwardly beneath an oscillating rake H which
regulates the quantity of tobacco on the surface 55
2
2,113,514
of the roller I0 and the tobacco is then passed
beneath a brushing roller [2 which removes sur
plus tobacco from the surface of the roller H].
In the bight formed between the adjacent sur
faces of the rollers l0 and l2 a reserve of tobacco
is formed by the excess of tobacco which is swept
back by the roller l2, and this reserve of tobacco
is trimmed and kept in a substantially free condi
tion by the oscillations of the rake II and is
10 periodically pressed against the surface of the
roller ID by a pressing member I3.
After passing the brushing roller [2 the to
bacco on the surface of the roller I0 is carried
beneath a comb ! 4 which presses the tobacco into
15 the carding of the roller l0, and a fast rotating
pronged or carded roller l5 more commonly
known as a “picker roller” picks small quantities
of tobacco from the surface of the roller ID and
directs them downwardly at a high speed into the
inlet end of a downwardly directed passage 16.
The passage l6 comprises opposed surfaces which
are parallel to or substantially parallel to one
another and are formed by the walls I‘! and I8
and two end walls formed by elements which
25 project from one of the walls, for example, the
wall I8 in a plane substantially at right angles
to the plane of the wall from which they project
continuous succession of small quantities of to
bacco and compacted in the passage at least part
ly due to the change of momentum of the tobacco
particles when the speed of the tobacco in the
passage is reduced to a speed below that at which
the tobacco is fed into the passage and without
the application of any positive pressure or ram
ming action to the tobacco, and by this means
together with the movement of the walls I‘! and
I8 the tobacco in the passage is brought to a 10
thickness which is equal to the minimum distance
between the opposed surfaces of the walls I‘! and
IS. The speed of rotation of the picker roller l5
and the arrangement of the pins thereon is such
that the tobacco taken from the roller I0 is di 15
rected continuously into the passage 15.
The tobacco as it issues from the outlet of the
passage [6 is transferred by the transfer roller
23 over the surface of a concave guide 24, and
a picking element 25 which rotates at a high 20
speed is arranged to pick the tobacco from the
edge of the concave guide 24 and to direct the
tobacco so picked downwardly into the trough 26
of a cigarette making machine.
Referring to_ the modi?ed construction shown 25
in Figure 4,.the tobacco which is picked by the
picker roller l5 is showered on to the surface of
and in a manner such that at all times the pro
an endless conveyor 27 which moves the tobacco
jecting elements provide end walls which to
gether with the walls I‘! and I8 comprise a closed
passage. When, as just described, the end walls
project from one of the walls I‘! or IS, the end
walls partake of the movement described below,
of the wall from which they project. The op
posed walls I‘! and I8 are supported by cranks
I9, 2!], 2i and 22 which are rotated in a man
towards the passage Hi.
The tobacco delivered to the conveyor 21 by 30
the picker I5 is arranged over the surface of the
ner such that the walls I‘! and I8 are moved in
curved closed paths towards and away from each
conveyor in a manner such that the tobacco is
at all points or at substantially all points below
the desired mass because the conveyor 27 is
moving with a high surface speed so that the 35
tobacco showered on to the surface of the con
veyor by the picker roller 15 is formed as a very
thin stream on the surface of the conveyor. In
other and when the walls are closest to one an
practice, in both the forms herein described, the
other they each have a component of movement
in the direction in which the tobacco is moving
through the passage and the walls therefore
assist in feeding the tobacco towards a transfer
tobacco is delivered to' the passage in the form of 40
element 23 which, as can be seen from Figures 1
and 2, impedes the movement of the tobacco in
the passage I6. By reason of the fact that each
of the walls I‘! and I8 is supportd by two rotat
ing cranks in the manner shown, the movable
surfaces are throughout their movement, parallel
tov one another and parallel to their initial posi
tions.
The cranks I9, 20, 2! and 22 have a relatively
small eccentricity. Thus for example, in some
instances good results have been obtained with
an eccentricity of between %4th of an inch and
1A; of an inch.
substantially separated shreds or particles.
In the modi?ed construction the tobacco car
ried by the conveyor 21 is directed into the pas
sage l6 by an endless moving surface I21 which
is shown in Figure 4 as an endless band arranged 45
to intercept the tobacco leaving the conveyor 21
and to direct the tobacco downwardly into the
passage H5. The moving surface I21 has a high
surface speed so as to direct the tobacco down
wardly into the passage in a manner similar to
that of the picker roller l5. It will, of course,
be appreciated that the moving surface I21 may
comprise a roller instead of the endless band
shown in Figure 4 and in many-instances it
will be more convenient to use a roller because of
its greater simplicity.
The transfer element 23 is slowly rotated, the
speed of rotation being such that the tobacco is
What I claim as my invention and desire to
secure by Letters Patent is:
removed from the passage H3 at a much slower
1. In an apparatus for feeding shredded ciga
rette tobacco, a downwardly directed passage 60
in which tobacco is built up endwise, the passage
having an inlet and an outlet, the latter being
at the lower end of the passage, means to direct
speed than the speed at which it is showered into
the passage by the picker roller l5, which latter
is wholly external of the passage 16. As above
stated, the picker roller l5 directs into the pas
sage !6 small quantities of tobacco which are
picked from the surface of the roller Ill and the
tobacco so picked is at all points or at substan
tially all points below the desired mass. The
tobacco directed into- the passage by the picker
roller I5 is in the form of a shower comprising a
succession of substantially separate shreds or par
ticles of tobacco. The picker roller l5 directs a
su?icient quantity of tobacco into the passage to
form a carpet, and the tobacco is built up end
wise in the passage from that end of the carpet
75 which is nearest the inlet to the passage by a
tobacco into the passage and. a transfer element
located at the outlet of the passage to‘ receive the
tobacco as the latter issues from the passage,
said passage having opposed imperforate sur
faces, means moving said opposed surfaces to
wards and away from one another with corre
sponding types of movement in which said op 70
posed surfaces are at all times substantially par
allel to one another, said opposed surfaces hav
ing components of movement in the direction
of movement of the tobacco through the passage
at that time when the surfaces are closest to 75
2,113,514
gather to assist in feeding the tobacco towards
the transfer element.
2. An apparatus for feeding shredded cigarette
tobacco, a downwardly directed passage in which
tobacco is built up endwise, the passage having
an inlet and an outlet, the latter being at the
lower end of the passage, means to direct tobacco
into the passage and a transfer element located
at the outlet of the passage to receive the tobacco
10 as the latter issues from the passage, said passage
having opposed imperforate surfaces, means mov
ing said opposed surfaces towards and away from
one another and having components of move
ment in the direction of movement of the tobac
co through the passage at that time when the
surfaces are closest together to assist in feeding
the tobacco towards the transfer element, said
movable surfaces being supported by rotatable
cranks for movement in similar but opposite
20 orbital paths whereby throughout their move
ment the surfaces are parallel to one another
and parallel to their initial positions.
3. Apparatus for feeding shredded cigarette
tobacco comprising a downwardly directed pas
sage having a transfer element located at its
lower and outlet end and having opposed im
perforate surfaces at all times substantially paral
lel to one another and supported for movement in
similar but opposite orbital paths, means for
30 moving the surfaces towards and away from one
another and giving them components of move
ment in the direction of movement of the tobac
co through the passage at the time when the sur
faces are closest together to assist in feeding the
tobacco towards the transfer element, means to
3,
direct tobacco into the passage at a greater speed
than it is removed from the passage by the trans
fer element in such manner that tobacco is com
pacted in the passage at least partly due to the
change of momentum of the tobacco particles
when the speed of the tobacco in said passage is
reduced to a speed below that at which the tobacco
is fed into the passage, without the application of
any positive pressure or ramming action to the
tobacco, and the tobacco in said passage is brought
to a thickness which is equal to the minimum
distance between the said opposed surfaces.
4. In an apparatus for feeding shredded ciga
rette tobacco, a downwardly directed passage in
which tobacco is built- up endwise, the passage 15
having an inlet and an outlet, the latter being at
the lower end of the passage, a fast moving sur
face wholly external of the passage to direct
tobacco at a high speed downwardly in the form
of substantially separate particles into the pas
sage and a transfer element located at the outlet
of the passage to receive the tobacco as the latter
issues from the passage, said passage having
opposed imperforate surfaces, means moving said
opposed surfaces towards and away from one
another with corresponding types of movement
in which said opposed surfaces are at all times
substantially parallel to one another, said opposed
surfaces having components of movement in the
direction of movement of the tobacco through 30
the passage at that time when the surfaces are
closest together to assist in feeding the tobacco
towards the transfer element.
DESMOND WALTER MOLINS.
35
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