Improvements in Apparatus for Making Paper or other Tubes.
Year: 1895

page_text: Date of Application, 31st Oct., 1895
Complete Specification Left, 28th July, 1896-Accepted, 5th Sept., 1896
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Making Paper or other Tubes.
I, FREDERICK WEAVER OLIVER, of 40 King Street, Cheapside, in the City of
London, Lithographer, do hereby declare the nature of this invention to be as
follows:-
The object of this invention. is to provide a machine by which tubes may be
formed by winding pieces of paper or similar material coated with a cementing
material on to a series of mandrils one after another and by drying or partially
drying the tubes as they are formed and then automatically delivering the
completed tubes, in regular succession.
The mandrils are ranged equidistantly around the circumference of a drum which
is heated by steam or otherwise; they are parallel with the axis of the drum and
are carried round on a frame placed on each side of the drum.
The mandrils also are revolved preferably by pinions on their ends gearing into a
fixed ring of teeth.
As the frame carrying the mandrils rotates each revolving mandril is in turn
brought round to a point at which a piece of paper coated on one or both sides with
cenienting material is fed forward to it.
As soon as the leading edge of the piece of coated paper comes on to the mandril
two or more pressing rollers are by springs or otherwise caused to move towards the
mandril. The paper is either nipped between the drum and the mandril first, or
between the rollers and mandril. The leading edge of the paper is thereby carried
round with the mandril and is kept in close contact with it by the pressing rollers
as well as by the drum.
To still further ensure that the leading edge of the paper shall be wound
properly around the mandril curved guide segments are also provided which are
made at the same time to come close up to the mandril and surround that portion
of its circumference which is between the pressing rollers on one side and between
the pressing rollers and the drum on the other side of the mandril.
The bearings for each mandril may be carried by radial arms which can be
moved towards or away from the centre of the drum.
The bearings of the pressing rollers which are to bear against the sides of the
mandril may be carried by links jointed to the radial arms.
The outer ends of the links are pressed towards one another by the action of
springs so that the pressing rollers are pressed constantly towards the mandril-the.
outer ends of the links are also made to bear against a guide or cam surface (or
some equivalent mechanical movement is used) which is carried round with the
revolving frame and which causes the pressing rollers to move away from the
mandril when the mandril is moved away from the drum.
The mandril is away from the drum and the pressing rollers away from the
mandril at the time when the mandril is 'by the revolution of the frame brought
into position for the end of a piece of paper to pass on to it. As it does so the
mandril is quickly moved back so as to press against the drum and the pressing
rollers are quickly moved back against the mandril, the curved guide pieces being
at the same time moved inwards towards the mandril and as the mandril revolves
the paper is wound around it.
Curved guide segments may be carried by the links which carry the pressing
rollers and by an arm which as the rollers move away from the mandril is caused
to turn quickly and carry the guide piece out of the way so that it shall neither

page_text: interfere with the paper being presented to the mandril nor with the ejection of the
completed tube but so soon as the leading edge of the paper has passed between the
mandril and the drum the rollers and guides all close towards the mandril so
that the paper is compelled to keep close to the mandril and to be wound up
on to it.
In order also to keep tension on the paper during the time that the first few
turns are being wound on to the mandril the paper as the mandril is carried round
with the drum is caused to come against a roller or series of discs and move away
the roller or discs against the action of a spring or weight.
As the mandril revolves all the paper is wound up on to it and the paste dried
or partially dried by the. tube being kept constantly bearing against the heated
drum.
When the winding is complete and the paste set the mandril is moved a short
distance outwards away from the heated drum and the rollers and guides away from
the mandril the mandril is then withdrawn and the tube ejected or allowed to
drop away. To enable the mandril to be withdrawn it is divided transversely into
two halves and one half is withdrawn from one end, the other from the other-the
sliding end wise of the two parts of the mandril is effected by means of fixed cams
at the two sides of the machine.
The paper to be wound up into tubes is fed forward by means of a revolving
roller segment or segments and the paper is conducted over and between guide
rollers or fixed guides and between a pair of rollers, by which paste is applied to
one or both sides of the paper. As the pieces pass from these rollers their ends are
presented to the revolving mandril and are held to the mandril and caused to be
wound around it.
The paper may either be drawn from a roll and cutting apparatus be provided
to cut it into pieces of the desired length or separate pieces of paper of the
required length may be fed one by one to the machine.
I
The whole or part of the apparatus may be enclosed within a cover so that
vapour arising from the drying of the cementing material may be condensed and
recovered.
Scrapers may also be provided to scrape away all cementing material which
may be deposited on to the drum or rollers and so keep the rollers and drum
clean.
Dated this 20th
f
COMI LEIM STECIFICATION.
Improvements in Apparatus for Making Paper or other Tubes.
I FREDERICK WEAVER OLIVER, of 40 King Street, Cheapside, in the City
of London, Lithographer, 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:-
The object of this invention is to provide a machine by which tubes may be
formed by winding pieces of paper or similar material coated with a cementing
material on to a series of mandrils one after another and by drying or partially
drying the tubes as they are formed and then automatically delivering the
completed tubes, in regular succession.
Figure 1 is a plan and Figure 2 a side elevation of the machine. Figure 3 is a
vertical section and Figure 4 a side elevation (partly in section) of the frames and
drum. Figure 5 is a part side elevation (partly in section) and Figure 6 a part
vertical section showing details to a larger scale.
a is a stationary hollow drum keyed to a fixed steam pipe 6 by which it is

page_text: supplied with steam and so kept heated. c is a sleeve free to revolve on the pipe b
and having fixed to it a toothed wheel c¹ (Figure 1) gearing with a pinion on a
shaft c driven by the belt pulley c³. d is an open work frame surrounding the
drum a, the hub (Figure 3) of one side is in one piece with the sleeve c whilst
the hub d' of the other side runs loose on the steam pipe b, the two sides of the
frame being connected at the circumference by bolts d³ passing through distance,
pieces d' (Figures 4 and 5). ee are two stationary toothed wheels one keyed to the
steam pipe and the other carried by a bracket el (Figure 1) bolted to the base of
the machine. fare arms carrying brackets f and free to move radially in guides in
the frame d being pulled inwards by springs f' (Figures 3 and 6) and being pressed
outwards periodically by stationary cams 9 keyed to the steam pipe b. h are the.
mandrils free to rotate axially in bearings at the ends of the radial arms f and
square prolongations (Figure 6) of thein pass through corresponding holes in
toothed pinionsj working in bearings f at the ends of the brackets f1 and gearing.
with the stationary rings of teeth e. k are pressing rolls working in bearings in
links k¹ (Figure 5) which are pivotted at to the frame d and at 2 to the radial
arms f. The axes k+ (Figure 6) of the rolls k have fixed to them pinions ³ gearing.
with the stationary rings of teeth e. The rolls are normally kept pressed against
the mandrils by rods 6 (Figure 5) actuated by springs k. I are levers pivotted
at to lugs on the hubs d' d' of the frame d and having holes or eyes near their
ends through which the mandrils hand rolls k or their spindles pass.
12, (Figure 6) are pieces engaging with grooves in the mandrils and carrying
pins 3 working in longitudinal slots in the levers l. are rollers at the ends of
the levers which come periodically against stationary cams m (Figures 1 and 2)
fixed on the bed of the machine, the levers / otherwise keeping the mandril closed
by the action of the springs 5. n is a table along which sheets of paper or other
material are fed by hand or otherwise between the roller o and feed segment o' the
feed rolls p p and pasting rolls qq from whence they are delivered on the platform r
(Figure 5) pivotted at 7 and resting on the roller or pin s carried by the lever s
which is pivotted at &².
The action of the apparatus is as follows:-The frame d revolving continuously
carries with it the mandrils h and pressing rolls k which also revolve about their
own axes by reason of the pinions j and on thein gearing with the stationary
rings of teeth e. At the lower part of their course the mandrils are not in
contact with the drum a and the rolls k are not in contact with the mandrils / for
the stationary cams have pressed the arms of radially outwards as shown in
Figure 5. When a mandril comes opposite the feed a sheet of paper coated on
one or both sides with cementing material is thrust between it and one of the
rolls k and then the arm coming to the end of the rise of the cain g is brought
back by the springs and the leading edge of the paper is nipped between the roll
and the mandril, and the drum and the mandril and is wound up on the latter. To
still further ensure that the leading edge of the paper shall be wound properly
around the mandril, curved guide segments may be fixed on the links k¹ which
when they come together form an almost continuous semi-circular guide around the
mandril leaving a space however between it and the mandril which is filled up by
the paper or other material whilst on the opposite side is a guide t pivotted at t¹ to
the frame d which is slotted to receive pins 12 fixed to the spring rods so that
immediately the rolls k move towards the mandril the nose of the guide comes
close down onto the latter between the two rolls k. The guide t carries on its back
a roller t³ to assist in the passage of the paper. As the frame d continues to
revolve a projection dx on it comes against the nose of the lever s so raising the
platform (as shown in dotted lines in Figure 5) its mouth moving approximately
with the mandril.
u is a roller, (in the form
pieces) pivotted to arms u¹.
a suitable tension.
of a number of narrow discs separated by distance
This rests on the paper and by its weight maintains
As the mandril revolves all the paper is wound up on to it and the paste dried

page_text: or partially dried by the tube being kept constantly bearing against the heated
drum.
When the winding is complete and the paste set the mandril is moved a short
distance outwards away from the heated drum and the rollers and guides away
from the mandril, as above described by means of a rise in the cams g, the mandril
is then withdrawn and the tube ejected by any suitable ejector or allowed to drop
away.
To enable the mandril to be withdrawn it is divided transversely into two halves,
as is clearly shown in Figure 6, and one half is withdrawn from one end, the other
from the other the sliding end wise of the two parts of the mandril is effected by
means of fixed cams m which operate the levers l.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:-
1. The combination of the drum and a mandril or mandrils rolling on its curved
surface.
2. The pressing rolls bearing on the mandrils.
3. Carrying the mandrils on arms which move radially to and from the axis of
the drum.
4
4. Carrying the pressing rolls on links pivotted to the arms and to the frame.
5. Driving the mandrils and pressing rolls by pinions gearing with stationary
rings of teeth at the sides of the drum.
6. Forming the mandrils in halves which separate longitudinally to discharge
the tubes.
7. The guides which close in around the mandril as soon as the feed has taken
place.
8. The pivotted guide t and the means for operating it.
9. Apparatus for making paper and other tubes substantially as described and
shown in the drawings.
D
1000