5 for manufacturing and Cutting Paper Tubes into Lengths.
Year: 1887

page_text: Date of Application, 19th Aug., 1887
Complete Specification Left, 18th June, 1888
Complete Specification Accepted, 17th Aug., 1888
5
for manufacturing and Cutting Paper
Tubes into Lengths.
I, WILLIAM HENRY ALLEN, of 41 Cambridge Place, Brooklyn, New York, United
States of America, Agent, do hereby declare the nature of this invention to be as
follows:
The objects of my invention are to facilitate and improve the manufacture of paper
tubes and their division into lengths suitable for the purpose for which they are
intended to be used, whether for the transport of goods, papers or other articles, or for
use in the manufacture of boxes, bottles or other receptacles.
In the making of such tubes I use a machine comprising a spindle or mandrel
mounted in two bearings, with suitable driving gear attached to it between those
bearings. This spindle or mandrel I make to project beyond the bearing, the outer
end being free. This outer arm or mandrel I make of such shape and size as the
body of the boxes, bottles, etc., requires the tube to be. The object of leaving the
outer end of the mandrel free is that the paper tubes may be stripped off without
stopping the machine.
The paper tubes are made by coiling a series of layers of paper round the outer
arm, a binding or adhesive substance being used to secure the layers of paper together,
and a roller or preferably a series of rollers is arranged to press on the outer surface
to ensure the adhesion of the contact surfaces.
According to my invention I employ for this purpose a series of 2, 3, 4, or more,
(but preferably four) rollers to press on the paper as it is wound on the mandrel.
These rollers are capable of being moved towards and away from the mandrel for
the purposes hereinafter described, and when four rollers are employed they are
preferably arranged in pairs.
Each roller is carried by a bracket capable of sliding in a groove in the frame, and
has a spring acting on it so as to tend to force it in contact with the mandrel. The
bracket is connected to a pivotted lever, preferably by a pin and slot connection, so
that by actuating the lever in one direction the roller will be moved away from the
mandrel in opposition to the action of the spring above referred to, while the return
i Price S1

page_text: movement of the lever will allow the spring to force the roller in contact with the
mandrel. The levers connected with one pair of rollers are also connected with the
levers of the other pair, so that the whole of the rollers may be simultaneously moved
towards or away from the mandrel by the single movement of a lever actuated by
pedal or by hand.
The mandrel is driven positively by belt or toothed gearing, while the pressure
rollers are preferably free to revolve on their axes through the friction on the paper.
The object of moving the pressure rollers away from the mandrel, is in order to
enable a tube when completed to be at once cut into lengths, and then by means of a
stripper forced off the mandrel.
For cutting the tubes into lengths a series of rotary cutters with knife edges are
arranged on an axis at intervals corresponding with the lengths of tube desired, such
cutters being free to revolve on their axis by contact with the revolving paper tube
against which they press with a gentle pressure. The cutter axis is carried by an
arm capable of being moved so as to cause the cutters to bear on the paper tube and
divide same into lengths, after the pressure rollers have been moved back, and then
moved away from the mandrel, in order to enable such lengths to be stripped off.
The parts of the mandrel opposite the points where the cutters will bear on the
paper tube, are preferably provided with counterparts constituting yielding surfaces
for the cutters, such counterparts being formed by tightly forcing leather or other
suitable substance into grooves formed in the periphery of the mandrel, such grooves
being preferably undercut so as to form dovetailed recesses.
This arrangement will allow of the tube being cut into lengths as soon as it is made
and while still wet.
The stripper consists of a ring or short sleeve, the inner side of which is of the
same shape as the mandrel and closely fitting it, yet so that while revolving with
the mandrel it is capable of being moved longitudinally thereon. The outer surface
of this stripper ring has a circular groove or recess cut in it, by which means it can
be engaged by one end of a pivotted lever, by actuating which in one direction the
ring may be moved along the mandrel and the paper tube forced off.
The return movement of the lever will carry the stripper ring back to its normal
position; the lever connected with the pressure rollers may then be reversed, and the
machine is ready to receive a new coil of paper.
In cases where the tube to bo formed is not of circular section, the cutters will be
'mounted in the same manner as the pressure rollers, a spring causing them to bear on
the paper tube with a yielding pressure, which will permit of the cutters moving to
and fro to follow the contour of the mandrel.
The whole of the operations above described may if desired be rendered automatic
the paper being wound on the mandrel while the pressure rollers bear thereon unti
the tube is completed, when such rollers will be withdrawn and the cutters advanced
so as to divide the tube into the lengths desired, after which the cutters will retire and
the stripper be actuated to force the lengths of tube off the mandrel, and then b
returned to its normal position and the pressure rollers again advanced to form
fresh tube.
If not required to divide the tubo into lengths the cutters may be dispensed wit
or thrown out of action.
The whole of the parts above described may be duplicated, the mandrel being mad
to project also on the opposite side of the bearings, so that a tube may be formed o
each end thereof, and the parts acting in conjunction with each end of the mandr
may be actuated either so that the two tubes are formed, cut, and delivered, simu
taneously, or so that while one tube is being formed, the other is being cut an
stripped off the mandrel.
5
1007

page_text: COMPLETE SPECIFICATION.
Improvements in Machines for Manufacturing and Cutting Paper
Tubes into Lengths.
I, WILLIAM HENRY ALLEN, of 41 Cambridge Place, Brooklyn, New York, United
States of America, Agent, do hereby declare the nature of this invention, and in
what manner the same is to be perforined, to be particularly described and ascertained
in and by the following statement :-
The objects of my invention are to facilitate and improve the manufacture of paper
tubes and their division into lengths suitable for the purpose for which they are
intended to be used, whether for the transport of goods, papers or other articles, or for
use in the manufacture of boxes, bottles or other receptacles.
The machine I employ for this purpose is illustrated in the accompanying drawings,
in which
Fig. 1 is a side elevation of the improved machine.
Fig. 2 an end elevation, and
Fig. 3 a transverse section of same.
Fig. 4 is a side elevation of the set of rotary cutters, and
Fig. 5 shows a modification in the method of mounting such cutters.
Fig. 6 is a vertical section through one of the side fraines of the machine showing
the construction of stripping mechanism in elevation.
Fig. 7 is an end view of the stripper lever, and
Figs. 8 and 9 are respectively an end elevation and plan view of a fish piece or part
used in actuating and reversing the stripper lever.
The machine comprises a spindle or mandrel A mounted in two bearings B, B', with
suitable driving gear Cattached to it between those bearings. This spindle or mandrel
I make to project beyond the bearing B', the outer end being free. This outer arm
or mandrel I make of such shape and size as I desire to make the paper tubes, the
drawing showing same circular. The object of leaving the outer end of the mandrel
free is that the paper tubes may be stripped off without stopping the machine.
The paper tubes are made by coiling a strip of paper round the outer arm, a binding
or adhesive substance being used to secure the layers of paper together, and a roller
or preferably a series of rollers D, D1, D2, D3, is arranged to press on the outer surface
to ensure the adhesion of the contact surfaces.
According to my invention I employ for this purpose 2, 3, 4, or more, (but preferably
four) rollers to press on the paper as it is wound on the mandrel.
These rollers are capable of being moved towards and away from the mandrel A for
he purposes hereinafter described.
Each roller is carried by a bar E capable of sliding in ways in the frame, as shown
n Fig. 3, and such rollers are moved to and from the mandrel by means of a second
oller mounted on each bar E and engaging an eccentric slot G provided in a
rame H, capable of turning in an are of a circle, for which purpose it is provided
with a toothed sector I gearing with a pinion J secured to a shaft J, mounted in
bearings in the frame, and provided with a lever K, which is fitted with an adjustable
ounterweight L.
By means of this adjustable counterweight, which tends to force the rollers D into

page_text: contact with the mandrel A, or with the paper when same is being wound thereon,
such rollers will be caused to act with a yielding pressure, which can be regulated by
sliding counterweight L along the lever K.
The above arrangement of sliding bars and frame is provided at each end of the
rollers D, which latter, when the frames are actuated by means of lever K, are 5
simultaneously caused to move towards or away from the mandrel A, according to the
direction in which lever K is moved.
In order to enable the rollers to be adapted to serve for different sized mandrels,
the slots G with which the rollers F engage are preferably made in blocks M capable
of sliding in ways N formed in the frame H, and adjusting screws O provided to adjust
the blocks in relation to the centre of the mandrel and securely hold them when so
adjusted.
When the pressure rollers D bear upon the mandrel A there will necessarily be a
certain space between the adjacent rollers. In order to prevent the leading end of
the paper as it is first fed to the mandrel from protruding through these spaces,
I provide guides U which are secured to the sliding bars E and move to and fro with
them, the inner surfaces of the guides occupying a position near to the surface
of the mandrel when the rollers are in contact with the paper being wound
thereon.
The previously pasted paper is fed to the mandrel A from the feed board A¹, and as
the mandrel revolves it is wound thereon, the pressure of rollers D ensuring the
formation of an even tube.
The object of moving the pressure rollers away from the mandrel is in order to
enable a tube when completed to be at once cut into lengths, and then by means of a
stripper forced off the mandrel.
For cutting the tubes into lengths a series of rotary cutters P with knife edges are
each arranged on an axis and mounted on a bar Qat intervals corresponding with the
lengths of tube desired, such cutters being free to revolve on their axes by contact
with the revolving paper tube against which they press with a gentle pressure.
The cutters are preferably mounted upon the bar Q so that their positions thereon
may be adjusted to suit the lengths of tube desired, and to facilitate their removal if
not required.
The cutter bar Q is carried by a pivotted lever R capable of being actuated by a
sliding rod S, through an intermediate link T, the bars and S both being mounted
in suitable ways or guides in the frame. By actuating the bar S the cutters P will
be caused to bear on the paper tube and divide same into lengths, after the pressure
rollers D have been moved back, and then moved away from the mandrel A, in order
to enable such lengths to be stripped off.
The two ends of the cutter bar Q are similarly provided with a lever R working in
guides R in the frame, and also with a link T connecting each to the sliding bar S
which has a cross bar V, so as to connect the opposite links together, thus causing the
latter to be actuated simultaneously when the bar S is operated.
The parts of the mandrel opposite the points where the cutters will bear on the
paper tube are preferably provided with counterparts constituting yielding surfaces
for the cutters, these counterparts being formed by tightly forcing leather or other
suitable substance into grooves formed in the periphery of the mandrel, the grooves
being preferably undercut so as to form dovetailed recesses, or the surface of the
mandrel may be of soft copper or other comparatively soft material.
This arrangement will allow of the tube being cut into lengths immediately it has
been coiled on the mandrel.
The stripper consists of a ring or short sleeve W, the inside of which is of the sam
shape as the mandrel A and closely fitting it, yet so that while revolving with th
mandrel it is capable of being moved longitudinally thereon. The outer surface o
this stripper ring has a circular groove or recess cut in it, by which means
can be engaged by the forked end of a lever X, by moving which in one directio
the ring W may be moved along the mandrel A and the paper tube forced off.
For the purpose of actuating and reversing the stripper W, the lower end o

page_text: lever X is provided with a sleeve X' capable of sliding along a guide bar Y, while
the centre of such lever is formed with a circular opening X through which passes
a screw Z mounted in bearings in the frame, and caused to rotate continuously in the
same direction through the gear wheels a and, the former mounted on the mandrel
shaft A and the latter on the screw Z. Within the central opening X a fish piece b
is arranged, such piece having a shank which enters and is free to turn in a hole
bored up the body of the lever within the central opening. From this shank a
pin c projects outwards and when the fish piece is in position as shown in Fig. 7, such
pin projects through and has a certain play within a slot d formed through the body
of the lever. When the stripper is in its normal position of rest at the inner end of
the mandrel, the pin c is engaged in a notch e formed in a bar capable of sliding in
the frame, and actuated by a suitable lever arrangement g, h, i, (as shown in Fig. 3).
The stripper being in its normal position of rest, and the pin c of the fish piece b
engaged in notch e of bar f, such fish piece is held so that iis fins or tail pieces are
held clear of the threads of screw Z. The screw Z is formed with two threads (right
and left handed) which cross each other as shown.
When the lever i is pulled over in the direction of the arrow, the action causes
the fish piece to turn slightly, thus bringing one of the tail pieces b² into engage-
ment with one of the threads of screw Z, and as this rotates the stripper lever X will
be caused to travel carrying with it stripper W, which will thus force the tube formed
from off the mandrel A. On arriving at the end of the thread the fish piece will
come into contact with a projection formed on the screw spindle, and thereby
be caused to turn slightly so that one tail piece is directed into the other screw
thread, and this being to the other hand the stripper lever and stripper will be carried
back to their original position, the pin c again entering notch e in bar f, which as
soon as lever i had been released was returned to the proper position to receive same
by the action of spring 1.
After the return of the stripper W to its original position the lever K connected
with the pressure rollers D may be reversed, and the machine is ready to receive a
new coil of paper.
The cutters P may be mounted so as to act with a yielding pressure upon the paper
tube, a suitable construction for this purpose being shown in Fig. 5 where the axis
of the cutter is secured to a shank p passing through a sleeve 7 and having a pin to
engage a slot therein, such sleeve being provided with a collar between which and a
shoulder on the shank pa springs is introduced. This arrangement will permit of
the cutters moving to and fro to follow the contour of the mandrel.
The whole of the operations above described may if desired be rendered automatic,
the paper being wound on the mandrel while the pressure rollers bear thereon until
the tube is completed, when such rollers will be withdrawn and the cutters advanced
so as to divide the tube into the lengths desired, after which the cutters will retire
and the stripper be actuated to force the lengths of tube off the mandrel, and then
be returned to its normal position and the pressure rollers again advanced to form a
fresh tube.
The whole of the parts above described may be duplicated, the mandrel A being
nade to project also on the opposite side of the bearings B, B₁, so that a tube may
e formed on each end thereof, and the parts acting in conjunction with each end of
he mandrel A may be actuated either so that the two tubes are formed, cut, and
delivered, simultaneously, or so that while one tube is being formed, the other is being
cut and stripped off the mandrel.
Having now particularly described and ascertained the nature of my said
nvention, and in what manner the same is to be performed, I declare that what
claim is :-
In a machine for forming paper or analogous tubes :-
F733

page_text: 2. The employment of two, three or more pressure rollers capable of being
simultaneously moved towards and away from a mandrel, substantially as and for the
purposes specified.
3. The combination of one, two, three or more pressure rollers capable of being
moved towards and away from a mandrel, with a guide piece or guide pieces capable
of similarly being. moved towards and away from such mandrel, substantially as
specified.
4. The means for moving a pressure roller or rollers towards and away from a
mandrel, substantially as specified and shown in the drawings.
5. The combination with a mandrel for receiving a coil of paper or analogous material
of a series of rotary cutters capable of being moved towards and away from such
mandrel, substantially as specified.
6. The use of a rotary cutter or cutters capable of being moved towards and away
from a mandrel, the surface of which is made yielding or soft or is provided with
yielding or soft counterparts to act in conjunction therewith, substantially as
specified.
7. The combination with a mandrel for receiving a coil of paper or analogous material
of a stripper mounted on such mandrel and capable of being moved along same,
substantially as and for the purpose specified.
8. The employment of a screw for the purpose of moving a stripper along a mandrel
serving to receive a coil of paper or analogous material, substantially as specified.
9. The employment of a screw having a right and a left handed thread crossing each
other, in combination with a stripper provided with a movable part and suitable means
for actuating same, so as to cause it to engage with the right and the left handed
thread of the screw alternately, as the stripper arrives at opposite ends of its travel,
substantially as specified.
10. The improved machine for constructing paper or analogous tubes consisting in a
mandrel projecting beyond its bearings, in combination with (a) two, three or more
pressure rollers with guide pieces between them, (b) a cutter or cutters, (c) means for
moving such pressure rollers, guide pieces and cutters towards and away from the
mandrel, (d) a stripper mounted upon and capable of moving along such mandrel
and (e) means for moving the stripper so as to cause it to travel alternately in opposite
directions, substantially as specified.
1 of Time 1988