Unpasted Cigarette Tubes.
Year: 1885

page_text: Unpasted Cigarette Tubes.
I, WILLIAM HENRY BECK of 115 Cannon Street, in the City of London, Con-
sulting Engineer and Patent Agent do hereby declare the nature of this invention
to be as follows:-
This invention consists in a novel method of, and apparatus for, manufacturing
cigarette paper tubes without the use of paste or size, and thus avoiding the
inconvenience heretofore met with in the employment of ordinary pasted cigarettes.
The unpasted cigarette tube, produced by this improved process, may be of any
length and diameter, and is closed along one of its generating lines by clasps or
hooks, or by folding, or rolling two, three, four, or more thicknesses of paper,
embodied within each other in the manner hereinafter described.
The peculiar process of manufacturing unpasted tubes, which is the object of
this invention, consists substantially in effecting a longitudinal fastening by means
of a flange or seam having the shape of a flattened tube, which is formed by the
rolling or winding, into each other, of the two edges of the paper sheet or band.
And while this method of fastening or closing may be applied outside the cigarette
tube without departing from the principle of the invention, it is preferable to
apply the same internally as it then affords all the advantages which are the
essential features of the invention, and which chiefly consist in preventing the
accidental disconnection of the rolled and flattened edges, from any cause, and
rendering any additional closing at the ends of the cigarette tube unnecessary.
The apparatus, for the manufacture of cigarette tubes with internal longitudinal
fastening in accordance with this invention, is of the following character :—.
And endless paper band is employed, the width of which corresponds to the size
of the complete tube when unwound, including, of course, the parts that are to be
taken up by the joint obtained by rolling the edges within each other.
The paper, wound upon a roller, is first directed between two guide rollers,
one of which has a curved convex generating line, and the other a correspond-
ing concave curve. From these rollers it enters a curvilinear convergent channel
D

page_text: which causes the edges of the paper band to rise gradually and then to be bent
down inwards at the extreme end of the channel.
The turning down of the edges is caused, in the first place, by the outline of the
channel which itself is imperceptibly and gradually turned down; and in the
second place, by a portion which is entirely closed and forms a continuation of
the channel, a vertical partition being fitted therein. The tube, thus prepared, is
supported by a stem rod, or mandril, concentric with the forming mechanism, and
is only released thereby when completed.
The tubular part of the channel only ends when the two edges of the paper
are entirely turned down. At that instant, the inner projections, or edges, of the
paper, enter a truncated cone shaped funnel which may or may not be wound
spirally. Within this device, the paper edges are rolled together so as to form a
spiral joint. The funnel is arranged within a hollow provided for the purpose in
the rod or mandril, so that the whole of the device is limited by the periphery of
said rod or mandril.
Beyond the funnel, the spiral joint is flattened in the middle by a roller turning
within a V shaped hollow, cut lengthwise in the rod or mandril. The fold, made
by the spring pressure of this roller, remains unchanged until the paper reaches the
pulling devices, which simultaneously complete the fastening.
These pulling devices comprise a grooved roller under which a small wheel with
a plain or serrated surface is located within a recess in the rod or mandril, and
lastly another plain wheel is superposed above a second drawing roller.
The pressure, exerted by the grooved roller and its small wheel upon the
squeezed spiral joint, results in a goffering of the several thicknesses of paper, so
that the same are incorporated within each other, and constitute an internal
junction fold which, although of a hardly perceptible thickness, is exceedingly
strong.
The function of the second pair pair of drawing rollers is to support the rod or
mandril as well as to assist the first pair of rollers in the feeding operation.
The feeding of the tube is effected by lengths, or half lengths, or in a continuous
manner. In the latter case, namely, when the feeding is continuous, the cutters
arranged at the end of the rod or mandril will, when in operation, have a forward
motion imparted to them at a speed equal to that of the movement of the tube so
that the cutting off of the lengths of tube may be effected without stopping the
formation of the endless tube. In the return motion, the cutters may have any
required speed, provided that it is sufficient to restore them to their starting point
again in a given space of time.
The supports of the several parts, of which the apparatus consists, are all
suitably attached to a table. The said apparatus may however vary in its main
parts according as it is, or is not, in connection with a cigarette machine.
I have before stated that the pressure of the first pair of drawing rollers upon
the spiral joint of the tube, no matter whether the same is inside or outside, has
the effect of incorporating, within each other, the paper thicknesses enclosed
within the said spiral joint. Now, it will be observed that such a result may be
assisted by the use of a jet of steam, heated air, or a fluid the effect of which
would be to bring the paper to a condition best adapted for a successful operation,
and the employment of such a dry fluid, or gaseous current, or jet, will, in some
cases, allow of using the mere pressure of plain faced rollers without any serrated
outline, whatever may be the number of thicknesses of paper connected together
in the joint. In most cases two such thicknesses are sufficient.
thm nb dan D1005
W. H. BECK,
115, Cannon Street, London,
Applicant.

page_text: Unpasted Cigarette Tubes.
I, WILLIAM HENRY BECK, of 115 Cannon Street, in the City of London,
Consulting Engineer and Patent Agent, do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement, reference being had
to the accompanying sheet of drawings and to the letters and figures marked
thereon:-
This invention consists in a novel method of, and apparatus for, manufacturing
cigarette paper tubes without the use of paste or other adhesive material, thus
avoiding the inconveniences heretofore met with in the employment of ordinary
cigarettes with pasted longitudinal joints.
The cigarette tube produced by this improved process without paste or other
adhesive material may be of any length and diameter and is closed longitudinally
by clasping, hooking, folding or rolling the edges of the paper in two, three, four
or more thicknesses interlocked within each other in the manner hereinafter
described.
The peculiar process of manufacturing unpasted tubes, which is the object of this
invention, consists substantially in effecting a longitudinal fastening by means of
a flattened tubular roll which is formed by the rolling or winding into each other
of the two edges of the paper, sheet or band, and while this method of fastening or
closing may be applied outside the cigarette tube without departing from the
principle of the invention, it is preferable to apply the same internally, as it then
affords all the advantages which are the essential features of the invention, and
which chiefly consist in preventing the accidental disconnection from any cause of
the rolled and flattened edges, and in rendering any additional closing at the ends
of the cigarette tube unnecessary.
The drawings hereto annexed illustrate the apparatus for manufacturing cigarette
tubes with internal longitudinal fastening or joint in accordance with this inven-
tion. In these drawings Figure 1 is an elevation, Figure 2 a plan, and Figure 3 a
vertical section of the apparatus, and Figures 4 to 9 transverse sections taken on
the lines 4-4, 5-5, 6-6, 7-7, 8-8, and 9-9 respectively of Figure 1.
p is an endless paper band the width of which is equal to that of the complete
tube when opened out, including, of course, the parts that are to be used in
making the joint formed by the rolling or folding of the edges one in the other.
This paper wound upon a roller P is first directed between two guide
rollers a a one of which a has a curved convex face, and the other a¹ a
corresponding curved concave face. From these rollers the paper p enters a
curvilinear converging channel b, which causes the edges of the paper band to
rise gradually, and then to be bent down inwards, at the entreme end of the
channel, thus assuming in section the shape shown in Figure 10.

page_text: The turning down of the edges xx¹ is caused in the first place by the form of
the channel the edges of which are gradually turned inwards and downwards;
and in the second place by a portion c. which is entirely closed and forms a
continuation of the channel b, a vertical partition c¹ being fitted therein as shown
in Figure 6 which is a section at line 6-0 of Figure 1.
The tube thus prepared is supported by a stem, rod, or mandril d concentric
with the forming mechanism, and is only released thereby when completed.
The tubular part c of the channel only ends when the two edges xxl of the
paper are entirely turned down as shown in Figure 11. At that moment the
inner projections or edges x x¹ of the paper enter a truncated cone shaped funnel e
which may or may not be formed spirally. Within this device the paper edges
are rolled together so as to form a spiral as shown in Figure 12.
The funnel e is arranged within a hollow, provided for that purpose in the rod
or mandril d, so that the whole of the device is limited by the periphery of the
said rod or mandril d, as shown in Figure 8 which is a section on line 8-8 of
Figure 1.
Beyond the funnel e the spiral roll x is flattened in the middle by a roller g
turning within a V shaped hollow or groove f, cut lengthwise in the rod or
mandril d as shown in Figure 9.
The fold made by the elastic pressure of this roller g (Figure 3) remains
unchanged until the paper reaches the drawing-through devices which simul-
taneously complete the fastening or pressing together of the folds of the joint.
These drawing-through devices comprise a grooved roller under which a small
roller m with a plain or serrated surface is located within a recess in the rod or
mandril d, and lastly another small roller m² is superposed above a second drawing
roller h¹.
The pressure exerted by the grooved roller h and its small roller m upon the
squeezed spiral roll & effects a goffering of the several thicknesses of paper so that
the same are incorporated within each other and constitute an internal junction
fold which, although of a scarcely perceptible thickness, is exceedingly strong.
The function of the roller m² is to support in combination with the lower
roller the rod or mandril d without preventing the said roller h¹ from co-
operating with the roller to effect the drawing-forward or feeding operation.
The feeding or drawing-forward of the tube is effected by lengths or half
lengths of the tube manufactured or continuously. In the latter case, namely
when the feeding or drawing forward is continuous, the scissors or cutters arranged
at the end of the rod or mandril d for cutting the tube into the desired lengths
will have when cutting the tube, a forward motion imparted to them at a speed
equal to that of the movement of the tube, so that the cutting off of the length of
tube may be effected without stopping the formation of the endless tube. In the
return motion the scissors or cutters may have any required speed provided that it
is sufficient to restore them to their starting point again in time to make a fresh
cut across the tube.
8, 81, 82, 83, 84, are the supports of the several parts of which the apparatus
consists. They are all, as shown, suitably attached to a table t. The said
apparatus may however vary in its main parts according as it is, or is not, used
in connection with a cigarette machine.
I have before stated that the pressure of the first pair of drawing-through
rollers h and m upon the spiral joint roll of the tube, whether the latter is inside
or outside has the effect of incorporating within each other, the thicknesses of
paper enclosed within the said spiral joint roll. This result may be assisted by the
use of a jet or current of steam or of heated or damp air or of other material, the
effect of which would be to bring the paper to the condition best adapted for a
successful operation, and the employment of such a dry, damp, or gaseous current
or jet will, in some cases, allow of using the mere pressure of plain faced rollers
without serrations, whatever may be the number of thicknesses of paper forming
the joint. In most cases two thicknesses of paper in the joint are sufficient.

page_text: Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is :-
First. The improved process for manufacturing cigarette tubes without paste or
other adhesive material, herein before called unpasted cigarette tubes, which consists
in clasping, hooking, folding, or rolling the edges of the paper so as to interlock
one in the other, and in subsequently rolling or pressing down the interlocked
thicknesses of paper, so as to form a solid and close longitudinal joint, as herein-
before described, and illustrated in the drawings hereto annexed.
Second. The forming or shaping channel b; of curvilinear section with con-
verging edges which are gradually bent downwards inwardly, such channel being
arranged and applied as herein before described, and illustrated in the Drawings
hereto annexed.
Third. The arrangement and shape of the tubular channel c forming a pro-
longation of the channel b, and having an internal partition c against which the
edges of the endless band of paper p are bent downwards, as hereinbefore described,
and illustrated in the drawings hereto annexed.
Fourth. The arrangement of the rod or mandril & which supports the paper
internally during its passage through the tube c, and subsequently during the
formation, flattening, goffering, or rolling of the internal joint roll, as herein before
described, and illustrated in the drawings hereto annexed.
Fifth. The truncated conical funnel e (made spiral or not) which forms the
internal joint roll, by rolling one in the other the edges of the band of paper, which
is thereby transformed into a tube, as hereinbefore described, and illustrated in the
drawings hereto annexed.
Sixth. The roller g for pressing the joint roll x, by elastic action, into a longi-
tudinal V shaped hollow in the supporting rod or mandril d, as herein before
described, and illustrated in the drawings hereto annexed.
Seventh. The drawing-through rollers one of which h acts in combination with
a small wheel m, located in the rod or mandril d, and having either a smooth or
serrated edge, and the other of which h¹, acts, in combination with a small
wheel m², also located in the said rod or mandril, to assist the drawing-through
and at the same time to support the guiding rod or mandril d, as hereinbefore
described, and illustrated in the drawings hereto annexed.
Eighth. The arrangements and combinations forming the subject of the second
and seventh claim clauses hereof when applied to the formation and flattening of
the joint roll when the same is external to the cigarette tube, as herein before
described.
Ninth. The application and use of a jet or current of warm, damp, or other air,
vapour, or gas in the production of the internal or external longitudinal joint of
the paper tube, as hereinbefore described.
Tenth. The arrangement of the scissors or cutters for cutting the manufactured
tube into lengths, so that they have imparted to them rectilinear longitudinal
movements simultaneously with their cutting action, as hereinbefore described, and
for the purpose specified.