Improvements in and relating to Printing Paper Bags During the Process of their Manufacture by Machinery.
Year: 1892

page_text: Date of Application, 26th May, 1892
Complete Specification Left, 25th Feb., 1893-Accepted, 13th May, 1893
PROVISIONAL SPECIFICATION.
Improvements in and relating to Printing Paper Bags During the
Process of their Manufacture by Machinery.
We, JOHN BARON and JOB DUERDEN of Newtown Mills, Burnley, in the
County of Lancaster, Paper Bag Manufacturers, do hereby declare the nature
of this invention to be as follows:-
-
The first part of our invention consists of a die or revolving segment adjustably
secured to a cross shaft above the paper passing the "tube former " on its way to
the folding mechanism of a paper bag machine. At the extremity of the segment
is fixed a die of indiarubber or other material bearing the inscription, name or
device to be impressed, printed or otherwise delineated upon the surface of the
bag. The shaft bearing the segment is mounted in bearings formed in side brackets
adjustably attached to the side framing of the machine, and capable of vertical
adjustment by screws or the like. To the said shaft is fixed a sprocket wheel,
which is connected by a sprocket chain to another sprocket wheel fixed on the
driving shaft.
A suitable inking trough and ink transmitting pulley are employed, from the
latter of which the die of the segment, as it revolves, receives the requisite amount
of ink or other colouring matter, preferably aniline dye.
The segment is so geared and connected to the driving shaft as to perform one
revolution for each bag length, the complete circuit or radius of the die of the
segment being equal to that of the bag length.
By the application of this novel arrangement of segment, it is possible to print
different lengths of bags without substituting various sizes of printing cylinders as
is usual in this class of printing. When the bag length is to be reduced, the
segment carrying the die is adjusted and brought nearer to the centre of the cross
shaft, so as to reduce the radius of the die that it may be in accordance with the
bag length. On the other hand, the radius of the segment is increased when
the bag length is increased. The die on the segment, when making its impression,
will therefore traverse at the same surface speed as the paper, and will have no
tendency to smear or pull the paper when in contact therewith. No pressure
roller need be used as sufficient impress is obtained by the pressure of the paper
between the elastic die and the "former," above which the revolving segment is
mounted.
It will be obvious that when increasing the length of the segment to obtain an
increased radius, the cross shaft, to which it is attached must necessarily be raised
to allow the die to pass and clear the "tube former."
The bag may be printed in various colours, by the employment of additional
cross shafts and segments, and inking accessories, as above described, one set for
each colour, whilst the same sprocket chain is made to gear into each wheel,
secured to each respective cross-shaft, which are all driven in one direction at the
same surface speed.
The object of the next part of our invention is to print any suitable inscription,
name, or device, indiscriminately, or at random, over the surface of paper bags,
during the process of their manufacture.
In previously constructed machines for printing paper bags, the type cylinder
has been required to move at a variable speed, adjustably arranged, that the said
roller might be timed to impart the impression of the type as near as possible in
the centre of the bag; whereas in this part of our invention, the name, inscription,
or other device, is impressed upon the paper or paper bag in series, although
rregular as to position. Therefore a name, inscription, or other device, may or

page_text: will appear in a prominent position upon the surface of the bag, once or a number
of times, whilst others may be lapped in the bottom fold. No attention is therefore
required to present the impression in any particular part of the bag, as one or
other of the series will necessarily present itself at the right place. For this
purpose, one or more type rollers and their accessories may be arranged for
printing in series one or more different colours upon the bags, in which case,
the type rollers of the several sets are geared together to act in unison with
each other.
The paper from the reel on entering the machine is passed between the type
roller or rollers, which are preferably turned round by the traction of the paper,
passing between them; or the type and pressure rollers may be actuated in a
positive manner by gearing or the like from any convenient revolving part of the
machine.
In both the foregoing arrangements the revolving segments and the type
rollers and their accessories are located between the reel of paper at the entrance
to the machine and the bag folding mechanism, and revolve at a uniform and
regular speed.
Dated thin 95th day of M... 1000
THOS. RICHMOND,
Agent.
COMPLETE SPECIFICATION.
Improvements in and relating to Printing Paper Bags During the
Process of their Manufacture by Machinery.
We, JOHN BARON and JOB DUERDEN of Newtown Mills, Burnley, in the
County of Lancaster, Paper Bag Manufacturers, 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 first part of our invention consists of a die. or revolving segment adjustably
secured to a cross shaft above the paper passing to the "tube former" on its way
to the folding mechanism of a paper bag machine. At the extremity of the
segment is fixed a die of indiarubber, metal or other material bearing the
inscription, name or device to be impressed, printed or otherwise delineated upon
the surface of the bag. The shaft bearing the segment is mounted in bearings
formed in side brackets adjustably attached to the side framing of the machine,
and capable of vertical adjustment by screws or the like. To the said shaft is
fixed a sprocket wheel, which is connected by a sprocket chain to another sprocket
wheel fixed on the driving shaft.
A suitable inking trough and ink transmitting pulley are employed, from the
latter of which the die of the segment, as it revolves, receives the requisite amount
of ink, or other colouring matter.
The segment is so geared and connected to the driving shaft as to performn one
revolution for each bag length, the complete circuit or radius of the die of the
segment being equal to that of the bag length. By the application of this novel
arrangement of segment, it is possible to print different lengths of bags without
substituting various sizes of printing cylinders, as is usual in this class of printing.
When the bag length is to be reduced, the segment carrying the die is adjusted
and brought nearer to the centre of the cross shaft, so as to reduce the radius of
the die, that it may be in accordance with the bag length. On the other hand, the
radius of the segment is increased when the bag length is increased.
The die on the segment, when making its impression, will therefore traverse at
the same surface speed as the paper, and will have no tendency to smear or pull
the paper when in contact therewith. No pressure roller need be used, as sufficient
impress is obtained by the pressure of the paper between the elastic die and the
former," above which the revolving segment is mounted.
66

page_text: It will be obvious that when increasing the length of the segment to obtain an
increased radius, the cross shaft, to which it is attached, must necessarily be raised
to allow the die to pass, and clear the "tube former."
The bag may be printed in various colours, by the employment of additional
cross shafts and segments, and inking accessories, as above described, one set for
each colour, whilst the same sprocket chain is made to gear into each wheel,
secured to each respective cross-shaft, which are all driven in one direction at the
same surface speed.
The object of the next part of our invention is to print any suitable inscription,
name or device, indiscriminately, or at random, over the surface of paper bags,
during the process of their manufacture.
In previously constructed machines for printing paper bags, the type has been
required to move at a variable speed, adjustably arranged, that the said roller
might be timed to impart the impression of the type as near as possible in the
centre of the bag; whereas in this part of our invention, the name, inscription, or
other device, is impressed upon the paper or paper bag in series, although irregular
as, to position. Therefore, a name, inscription, or other device will appear in a
prominent position upon the surface of the bag, once or a number of times, whilst
others may be lapped in the bottom fold. No attention is therefore required to
present the impression in any particular part of the bag, as one or others of the
series will necessarily present itself at the right place. For this purpose, one or
more type roller or rollers and its or their accessories may be arranged for printing
in series one or more different colours upon the bag, in which case, the type
rollers of the several sets are geared together to act in unison with each
other.
The paper from the reel, on entering the machine, is passed between the type
roller or rollers, which are preferably turned round by the traction of the paper
passing between them; or the type and pressure rollers may be actuated in a
positive manner by gearing or the like from any convenient revolving part of the
machine.
In both the foregoing arrangements, the revolving segments, and the type rollers
and their accessories, are located between the reel of paper at the entrance to the
machine and revolve at a uniform and regular speed.
In the accompanying drawings,
Fig. 1 is a detached view of a paper bag machine having our improved arrange-
ment of a revolving segment and inking accessories for printing paper bags during
the process of their manufacture by machinery.
A is a revolving segment secured to the cross shaft B above the paper passing
to the tube former on its way to the folding mechanism of the machine. To the
revolving segment A is fixed a die of indiarubber, metal or other material C (see
Fig. 4) bearing the inscription, name or device to be impressed, printed or other-
wise delineated upon the surface of the paper D proceeding from the roll of
paper E to the tube former of the machine. The shaft B bearing the segment is
mounted in bearings F formed in side brackets G, and capable of vertical adjust-
ment by hand screw H.
To the shaft B is fixed sprocket wheel I, which is connected by a sprocket
chain J to another sprocket wheel K fixed to the driving shaft L..
A suitable inking trough M and ink transmitting pulley or roller N are employed,
from the latter of which the die of the segment, as it revolves, receives the
requisite amount of ink or other colouring matter.
The sprocket wheel K on the driving shaft L is of such size and proportion in
relation to the sprocket wheel I as to cause the segment to perform one revolution
for each bag length, and for this purpose the complete circuit or radius of the
segment must be equal to that of the bag length. Although, we have here described
sprocket wheels and chain as the most serviceable driving gear, we would observe
that any other positive driving arrangement may be employed. It will be readily
seen that by a proper adjustment of the segment, that is, by increasing or decreasing

page_text: -
its circuit or radius it is possible to print different lengths of bags without the
necessity of substituting various sizes of printing cylinders as is usual in this class
of printing. When the bag length is to be reduced, the segment A, carrying the
die C is adjusted and brought nearer to the centre of the cross shaft, so as to
reduce the radius of the die that it may be in accordance with the bag length,
and vice versa, the radius of the segment is increased when the bag length is
increased.
.
Additional segments A', and inking accessories are employed when it is desired
to print the bags in various colours, one set being used for each colour, whilst in
such case, additional sprocket wheels 11 and 12 are employed, driven in the same
direction as sprocket wheel I by sprocket chain J.
In Figs. 2 and 3 is shewn a modification of our invention in which gear wheels
are substituted for sprocket driving gear and whereby we are enabled also to
increase or diminish the speed of the segmental printer just as the die is making
its impression upon the paper. This is effected by the employment of elliptical
or eccentric wheels O and P'driven from driving shaft L by bevel wheels Q, R, S
and S¹ and intermediate shaft T, or by any other positive driving arrangement.
To the eccentric wheel P, the segment A is attached and the differential ratio of
its traverse with the paper at the proper period is effected by its being fixed, to a
greater or less degree, in the ellipsis of the elliptical or eccentric wheel P in gear
with corresponding wheel O.
In Fig. 4 is shewn an enlarged view of the segment consisting of a square stud U
and die C, which is fixed to the stud by means of a bolt U₁, and the length of the
segment is increased by inserting washers between the head of the bolt U' and the
stud U.
The next part of our invention is illustrated in Fig. 5 and is designed to print
at random and indiscriminately over the surface of paper bags during the process
of their manufacture by machinery. The paper D is taken from the continuous
roll of paper E and passed round roller E', and then returned backwards over
guide roller E. The roller E' is driven from driving shaft L through the medium
of pulley K and chain or rope J or any other positive driving arrangement, and
transmits motion to the type rollers V, V₁ and V2 with their inking accessories.
It will be evident, that the printing in this arrangement is effected in series, and
in an irregular manner, and while one portion of the printing may be hid wholly or
partially in the bottom fold of the bag, another portion of the printed matter may
appear in a very prominent and desirable position on the surface of the bag. The
advantage of this system of printing over all other arrangements lies in the fact
that after the type rollers have been once set, no further attention or adjustment is
required for any size or description of bag.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. In paper bag printing machinery, the employment of a revolving segment A
with die C and inking accessories, and adjustable on the shaft B, so as to print any
size or description of bags during their manufacture, substantially as described and
illustrated in Figs. 1 and 4.
2. Printing paper bags at random and indiscriminately over the surface of the
bags during their manufacture, substantially as described and illustrated.
لسه
1
1000
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent.