IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE AND PRINTING OF PAPER BAGS
Year: 1880

page_text: LETTERS PATENT to Charles Beckmann, of 27, Cow Cross Street, Farringdon
Street Station, in the City of London, for an Invention of "IMPROVEMENTS
IN MACHINERY FOR THE MANUFACTURE AND PRINTING OF PAPER BAGS."
A communication from abroad by Ewald Schurmann and Carl Schurmann,
both of Elberfeld, in the Kingdom of Prussia.
PROVISIONAL SPECIFICATION left by the said Charles Beckmann at the
Office of the Commissioners of Patents on the 10th May 1880.
CHARLES BECKMANN, of 27, Cow Cross Street, Farringdon Street Station, in the
City of London. "IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE AND
PRINTING OF PAPER BAGS." [A communication from abroad by Ewald Schurmann
and Carl Schurmann, both of Elberfeld, in the Kingdom of Prussia.]
This Invention has for its object improvements in machinery for the manufacture
and printing of paper bags.
The paper for the manufacture of the bags is brought to the machine as a roll of
continuous paper of suitable width. The paper roll is placed beneath the table
of the machine, and the paper is unwound or drawn off from it on its under side.
The paper is led back horizontally by guide rolls to the end of the machine, and as
it passes around the first of these guide rolls paste is printed on to it at one edge
by a wheel revolving partly immersed in paste contained in a trough. The position
of the paste trough with its wheel is adjustable, so that the wheel may be brought
to bear on the paper in the proper place and with a suitable pressure.
The paper after the edge has been pasted, is led up over another guide roll at the
end of the machine level with the surface of the table. The paper has an inter-
mittent motion imparted to it, as is horeinafter explained. As the paper passes
along the table it is first submitted to a printing operation; for this purpose it
passes beneath a stationary platten, and here during each interval when the paper
is at rest a form of type duly inked is caused by cams or like instruments to rise
against it, and so to produce an impression on the under side of the paper. After
being printed the paper is led up over a guide roller which is raised above the
surface of the table, and it is then brought down again beneath a pair of bending
Pris 31

page_text: wheels by which the paper is bent in to a trough like form, the wheels bearing
upon the centre of the sheet and pressing it downwards. The paper is further
'folded or doubled over to a flat tube like form by passing beneath a pair of
stationary fingers which project over it from either side. The pasted edge of the
paper is now overlapped by the dry edge. Immediately beyond the fingers there
are a pair of grooved gauges, which by a screw adjustment can be set at a distance.
apart exactly to suit the width of bag it is desired to produce. The flat paper tube
passes between these gauges, its two sides being held in the grooves, and by them
the tube is drawn in to its proper size.
In front of the gauges there are a pair of, rollers having narrow bearing surfaces
which nip and hold the paper tube between them, but without creasing it on the
two edges. It is by these rollers that the longitudinal pasted joint of the tube is
pressed down flat. By these rollers also (aided by one or more of the guide rolls
and the bending wheels which are driven in unison with them) the paper is drawn
from the roll and brought forward past the instruments by which it is pasted,
printed, and folded into a tube, as already described. These rollers have an
intermittent revolving motion imparted to the:n; they rotate to the extent
necessary to draw forward the length of paper requisite to produce one bag, and
then pause whilst the proper length is cut off and the end flap pasted and folded
over, as hereinafter described. The cutting apparatus consists of a pair of blades, a
stationary blade beneath the tube of paper, and a rising and falling blade above it.
As soon as the paper tube has been moved forward by the means already described,
it is seized near to its end by a pair of holders or nippers operated by cams or like
means, and whilst the tube is thus held the end flap is turned in, pasted, and folded
over. A sufficient length of the paper tube to form the end flap will project
beyond the holders or nippers, and the mouth of the tube will stand partially open,
for the sides of the tube have not yet been creased or flattened. Whilst the open
end of tube is thus held, two pasting instruments are made to pass to and fro
horizontally and at right angles to the length of the paper tube.
The pasters each consist of a trough containing the paste, and having a slit at
the bottom from which the pasto-is delivered, and a pasting bar or blade beneath
the mouth of the trough and receiving paste from it.
These parts by suitable inclines are alternately brought together and separated.
These pasters pass close in front of the nippers or holders; as they advance the
pasting blades make V-form creases at the two ends of the mouth, and they apply...
paste to the mouth of the tube on the inner side. The bottom of the paste trough
also applies paste to the upper side of the flap. This having been done, the flap of
the bag is turned over by means of a hinged instrument, which by a cam or like
contrivance is caused to shut down upon it, thereby squeezing the newly pasted
parts firmly into contact. Afterwards the bag is passed on between pressing
rollers, which if desired may be heated. The bags are delivered in a finished state
on to a table, on which they accumulate and form a pile. For the purpose of
varying the length of the bags produced by this machine, change wheels are
provided to drive the rollers by which the paper tube is advanced step by step, as
already described, so that these rollers can be made to travel a greater or less
distance before they are stopped. The stopping of these rollers is accomplished by
throwing out a clutch operated at the proper time by a cam. The whole of the
cutting apparatus is made moveable, and can be brought nearer to or removed
further from the nippers or holders in which the end of the paper tube is held
whilst the end flap is formed.
A supporting surface to sustain the paper as it is moved forward is provided.in
front of and behind the cutting apparatus by attaching to the bar which carries
the lower or stationary cutting blade the two ends of a cloth, and straining this
cloth over rods fixed at either end of the gap in the table along which the cutting
apparatus is adjustable.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Charles Beckmann in the Great Seal Patent Office on the
10th November 1880.
CHARLES BECKMANN, of 27, Cow Cross Street, Farringdon Street Station, in the
City of London. "IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE AND
PRINTING OF PAPER BAGS." A communication from abroad by Ewald Schurmann
and Carl Schurmann, both of Elberfeld, in the Kingdom of Prussia.
This Invention has for its object improvements in machinery for the manufacture
and printing of paper bags.
The paper for the manufacture of the bags is brought to the machine as a roll of
continuous paper of suitable width. The paper roll is placed beneath the table of
the machine, and the paper is unwound or drawn off from it on its under side.
The paper is led back horizontally by guide rolls to the end of the machine, and as
it passes around the first of these guide rolls paste is printed on to it at one edge
by a wheel revolving partly immersed in paste contained in a trough. The position
of the paste trough with its wheel is adjustable, so that the wheel may be brought
to bear on the paper in the proper place and with a suitable pressure.
The paper, after the edge has been pasted, is led up over another guide roll at the
end of the machine level with the surface of the table. The paper has an inter-
mittent motion imparted to it, as is hereinafter explained. As the paper passes
along the table it is first submitted to a printing operation; for this purpose it
passes beneath a stationary platten, and here, during each interval when the paper
is at rest, a form of type, duly inked, is caused by cams or liko instruments to
rise against it and so to produce an impression on the under side of the paper.
After being printed the paper is led up over a guide roller, which is raised above
the surface of the table, and it is then brought down again beneath a pair of bending
wheels by which the paper is bent into a trough like form, the wheels bearing
upon the centre of the sheet and pressing it downwards. The paper is further folded'
or doubled over to a flat tube like form by passing beneath a pair of stationary
fingers which project over it from either side. The pasted edge of the paper is now
overlapped by the dry edge. Immediately beyond the fingers, there are a pair of .
grooved gauges, which by a screw adjustment can be set at a distance apart exactly
to suit the width of bag it is desired to produce. The flat paper tube passes
between these gauges, its two sides being held in the grooves, and by them the tube
is drawn in to its proper size.
In front of the gauges there are a pair of rollers having narrow bearing surfaces,
which nip and hold the paper tube between them, but without creasing it on the two
edges. It is by these rollers that the longitudinal pasted joint of the tube is
pressed down flat. By these rollers, also aided by one or more of the guide rolls
and the bending wheels which are driven in unison with them, the paper is drawn.
from the roll and brought forward past the instruments, by which it is pasted,"
printed, and folded into a tube, as already described. These rollers have an inter-.
mittent revolving motion imparted to them; they rotate to the extent necessary to
draw forward the length of paper requisite to produce one bag, and then pause
whilst the proper length is cut off, and the end flap pasted and folded over, as
hereinafter described. The cutting apparatus consists of a pair of blades, a
stationary blade beneath the tube of paper and a rising and falling blade above
it. As soon as the paper tube has been moved forward by the means already
described, it is seized near to its end by a pair of holders or nippers, operated by
cams or like means, and whilst the tube is thus held the end flap is turned in,
pasted, and folded over. A sufficient length of the paper tube to form the end flap
will project beyond the holders or nippers, and the mouth of the tube will stand

page_text: partially open, for the sides of the tube have not yet been creased or flattened.
Whilst the open end of the tube is thus held two pasting instruments are made
to pass to and fro horizontally and at right angles to the length of the paper
tube.
The pasters each consist of a trough containing the paste, and having a slit at
the bottom from which the paste is delivered, and a. pasting bar or blade beneath
the mouth of the trough and receiving paste from it.
These parts by suitable inclines are alternately brought together and separated.
These pasters pass close in front of the nippers or holders; as they advance the
pasting blades make V form creases at the two ends of the mouth, and they apply
paste to the mouth of the tube on the inner side. The bottom of the paste trough
also applies paste to the upper side of the flap. This having been done the flap of
the bag is turned over by means of a hinged instrument which, by a cam or like
contrivance, is caused to shut down upon it, thereby squeezing the newly pasted
parts firmly into contact. Afterwards the bag is passed on between pressing
rollers which, if desired, may be heated. The bags are delivered in a finished state
on to a table, on which they accumulate and form a pile. For the purpose of
varying the length of the bags produced by this machine change wheels are
provided to drive the rollers by which the paper tube is advanced step by step, as
already described, so that these rollers can be made to travel a greater or less
distance before they are stopped. The stopping of these rollers is accomplished by
throwing out a clutch operated at the proper time by a cam. The whole of the
cutting apparatus is made moveable, and can be brought nearer to or removed
further from the nippers or holders in which the end of the paper tube is held
whilst the end flap is formed,
A supporting surface to sustain the paper as it is moved forward is provided in
front of and behind the cutting apparatus by attaching to the bar which carries the
lower or stationary cutting blade the two ends of a cloth, and straining this cloth
over rods fixed at either end of the gap in the table along which the cutting
apparatus is adjustable.
In order that the said Invention may be most fully understood and readily
carried into affect. I will proceed to doceribe the Dreuring hereunto annexed
The Drawing is a perspective view of a machine for the manufacture of paper
bags, constructed as above described, but without the printing appliances, which
latter need not always be employed, and will be easily understood from the
foregoing description without further explanation. a is the roll from which the
paper is unwound as required; b is a guide roller which is made to revolve
intermittently; the paper passes half round the roller b, and the roller each time it
moves draws off from the roll a the paper necessary to make one bag. The
movement of the paper is aided by other parts revolving in unison with the
roller b.
As the paper lies upon the roller b it has paste applied to its edge by a pasting
wheel c mounted in the paste trough c¹. The paste trough itself rests upon the
adjustable plank d, so that the position of the paste wheel and the pressure with
which it bears upon the paper are easily adjusted.
e, e, are other guide rollers which serve to direct the paper to the table of the
machine. It is here that the printing of the paper is performed when it is desired
to produce printed bags. A platten is fixed over the paper, and a form of type is
made to rise up from below at each pause in the intermittent motion of the paper.,
Each time after printing when the form descends the type is inked by well known
appliances.
On leaving the guide rollers e, or after being printed, as the case may be, the
paper comes into contact with two wheels ff, which are made to revolve at

page_text: the time when the paper is drawn from the roll, and they aid in carrying the paper
forward. By means of these wheels also the paper is bent into a trough like form,
as the Drawing indicates. g,g, are a pair of adjustable but stationary fingers which
close over the sides of the paper, reducing it to the form of a flat tube. Beyond
these fingers the paper passes between a pair of gauges adjustable by screws turned
by the hand wheels h, h. The paper tube is thus reduced accurately to the proper
width. Afterwards it is taken hold of by a pair of driven rollers, which press down
the pasted joint and cause the two sides of the paper to stick securely together,
but the rollers being narrow they do not flatten the edges of the paper tube.
i is a nipping apparatus which closes on the paper at the time when it stationary,
and holds it with just the proper length to form the end of the bag projecting;
k, k, are the pasters; at the time that the paper is thus held they are caused by
cam arrangements, represented in the Drawing, to advance one from either side
along their guides to tuck in the ends of the flap or part which is to be folded over
and to paste it, as already described. After the flap has been pasted a piece hinged
upon the nipping apparatus closes it together.
1, 2, is the cutting apparatus, actuated by a cranked axis beneath, and which cuts
the paper and detaches the bag; the blades of the cutter are adjustable in position,
so that they may be set to cut the bag to any desired length.
m, m, are the rollers which finally flatten down the flap and discharge the bag
in a finished state on to the pile n.
Having thus described the nature of the said Invention, and the manner of
performing the same, I would have it understood that I claim,-
First. The improvements in paper bag machinery, substantially as described and
illustrated by the Drawing annexed.
Second. The combination of the nippers i and pastersk in such manner that the
paper in the form of a tube being propelled forward is seized by the nippers and
has the end tucked in and pasted by the pasters, substantially as described.
In witness whereof, I, the said Charles Beckmann, have hereunto set my
hand and seal, this Tenth day of November, in the year of our Lord One
thousand eight hundred and eighty.
ATTR DRAMANTAL