Improvements in Machinery for Making and Printing Paper Bags.
Year: 1892

page_text: Date of Application, 14th Oct., 1892
Complete Specification Left, 14th July. 1893-Accepted, 9th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in Machinery for Making and Printing Paper Bags.
I JACOB STAEDTLI BIRNESOHN of Lewinsmead, Bristol Engineer, do hereby
declare the nature of this invention to be as follows:-
My said invention relates to improvements in machines used in the manufacture
of paper bags and more particularly relates to machines for triangular bags.
In its main features a machine made in accordance with my said invention has a
frame or body carrying the roll or continuous web of paper from which the bags
are to be made and also carrying appliances for pasting, printing, folding and
severing the bags as they are formed.
The paper is drawn from the roll by means of a pair of draw or feed rolls
operated from a second motion shaft and is conveyed by suitable guides to the
part of the machine where it is formed into bags. Intermediate between these
two points is a printing device (which may be used or not as desired) having an
adjustable platen superposed over the web of paper. The form or other type
carrier is under the web of paper and is caused to rise and press on the under-
side thereof by means of a plunger or piston when the web is to be printed. An
intermittent inking device having reciprocating inking rolls, a revolving disc or
plate and an ink supplying roller is used in combination with the printing device
and is operated by a system of links, levers and catches or pawls preferably from
the second motion shaft of the machine.
The paper is led by suitable rollers under and over the paste box from which
a revolving wheel or disc takes the paste and applies it as a narrow streak near
the edge of the paper. From the pasting apparatus the paper is carried under
a spring holding device (so constructed as to prevent the turning up of the end
of the paper by the return of the lower arm or carrying piece) and is cut to
length by knives or shears actuated by an eccentric on a shaft gearing with the
second motion shaft.
After being cut the end of the web of paper is turned up by an oscillating
semi-circular roller the flat side of which is, when at rest, level with the surface
of the table. The turned end of the paper is folded by the semicircular roller
over the lower arm of a right angled sliding carrier. The upper arm of this
right angled sliding carrier is caused to rise by a roller meeting an inclined
lever. The rise at the proper time is also controlled by links and levers operated
by a loose boss on the wheel which drives the printing apparatus.
As the sliding carriers complete their back stroke they cause the spring holding
device hereinbefore referred to to be carried backwards and thus allow the end of
the web of paper to be folded back onto the lower arm of the said sliding carriers,
the upper cutting blade or knife having meanwhile being lifted clear.
The sliding carriers are attached to a slide block or bracket working in suitable
guides and derive their reciprocating motion from the mechanism which operates
the printing apparatus.
At the proper point in the forward stroke of the sliding carriers a roller on the
side of the upper arm meets and rides up an adjustable inclined bracket thus
relieving the paper from the pressure of the upper arm. The front edge of the
lower arm covered by the folded end of paper goes under a clamp which holds the
paper during the cutting.
To give a better hold the part of the table immediately under the clamping
weight is serrated or otherwise suitably roughened.
During the back stroke of the sliding carriers a tucker blade operated by an
excentric and rod begins to descend and after the carriers have retreated out of the

page_text: way it meets the paper diagonally and tucks or presses it between two fluted
revolving rollers which double the paper into the desired form.
During its descent the holder of the tucker blade causes the clamp to lift and
release the paper.
The paper which leaves the fluted rollers as a bag falls on to a receiving table
between two plates, one of which is fixed permanently to the underside of the main
table while the other is arranged immediately over the receiving table being fixed
on an upright attached to a rocking shaft in such a manner that as the bags fall
they are pushed forward singly in a vertical position and laid down flat clear of
the following bag.
A series of pegs are caused to rise and fall through the receiving table in such a
manner that they drop when the rocking plate pushes forward the finished bag and
immediately rise again thus preventing the finished bags from changing their
position and thus hindering the delivery of the following bag.
Slots in the rocking plate enable it to pass the pegs on its return.
A bell counter is attached to the machine for indicating the number of bags and
may be conveniently driven by a worm and worm wheel from a suitable part of
the machine.
Means are provided for readily adjusting the machine to bags of different sizes
and for putting the printing apparatus out of action.
Screws, slots, movable bosses or other adjustments are also provided for readily
setting the different parts of the machine to work in unison with each other.
Dated this 13th day of October 1892.
EDWARD TURNER WHITELOW,
70, Deansgate, Manchester, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Machinery for Making and Printing Paper Bags.
I, JACOB STAEDTLI BIRNESOHN, of St. James' Hall, Burnley, in the County
of Lancaster, (late of Lewin's Mead Bristol) Engineer, 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 :-
In the accompanying drawings
:-
Improvements in Machinery for Making and Printing Paper Bags.
I, JACOB STAEDTLI BIRNESOHN, of St. James' Hall, Burnley, in the County
of Lancaster, (late of Lewin's Mead Bristol) Engineer, 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 :-
In the accompanying drawings :-
Fig. 1. is a longitudinal elevation of one half of the machine.
Fig. 2.
"
of the other half of the machine.
Fig. 3.
"
"
of the reverse side of Fig. 1.
Fig. 4.
وو
"
"
"
Fig. 2.
Fig. 5. is a plan of Fig. 1.
Fig. 6. is a plan of Fig. 2.
Figs. 7. & 8. are details of the right angled sliding-carrier, and parts relating:
thereto.
Figs. 9 & 10, plan and section of spring box, and
Figs. 11, 12, 13, & 14, views of the bag blank, and finished bag, all constructed
in accordance with my invention.
The machine consists of a frame or body on which is supported a roll of paper ;.
also pasting, printing, folding and severing mechanisms for the purpose of making
and printing triangular, or three corner shaped bags of various sizes.
The end of the roll of paper, A, which is carried on spindle A', is drawn through
the machine by hand, after which, the operation of making and printing the bags
may be described as follows:-
A pair of draw or feed-rolls B, which are set in motion by a speed cone C,
driven by strap C¹, from the second motion shaft D, draw the paper from its roll.
It is then carried forward onto the bed or table of the machine E, in the manner
hereinafter described, being guided in its course, by suitable guides.

page_text: When it is desired to print the web of paper it is stopped in its traverse.
The printing apparatus which is situated between the draw-rolls B, and the paste
box, G, consists of an adjustable "platen" H, (not shown on plan) firmly secured.
to the table of the machine, and under which the web of paper is passed.
Under this "platen" H, a "form" is fixed to the bed H. which rises and falls;
receiving motion from the cams I, on the second motion shaft D.
This second motion shaft is actuated by being geared to the first motion shaft K,.
driven by a strap from the line or counter shaft.
When the "form" is at its lowest extremity, ink is conveyed to it, and laid on
by inking rollers L, carried by the frame L, on bowls L, traversing the two
longitudinal supports L³, having a horizontal reciprocating motion.
The ink is obtained by the inking rollers from the revolving horizontal plate, or
disc L, situated between the draw-rollers B, and the printing apparatus, to which
it is supplied by the roller L', revolving in box, L, this roller being actuated by
pawl or catch, L7, attached to slide-rod L, working on the side of the longitudinal
support or bearers, L³, which carry the bowls of the inking rollers.
Two studs or projections L', are formed on this slide rod, the latter being caused
to work to and fro by the frames L', carrying the reciprocating inking rollers.
The circular disc or inking plate L, receives its movement from catch or
pawl L, attached to the slide-rod Ls; these catches engaging with catch wheel L">
cast on to the under side of the ink disc.
The horizontal and reciprocating motion of the inking rollers, is obtained by
being connected to the vertical oscillating lever M, attached at its lower extremity
to the frame underneath the table of the machine.
This upright oscillating or vibrating lever being connected by connecting rod M',
to the crank M2, on the second motion-shaft D.
As the paper traverses the table of the machine, it is passed under paste-box G,
under and over adjustable carrying roller N', and under and over roller N
situated above the paste box, and comes in contact with the adjustable wheel or
disc N³, revolving in the paste box, which carries up the paste and applies it in
a thin streak, near to one edge of the top side of the continuous web of paper.
As the paper moves forward it is carried under the case or box O, the bottom, O¹,
(Figs. 9 & 10,) of which is stationary, the upper portion 02, being movable
horizontally (controlled by springs O³) which reaches almost to the cutting edge
of the knife P, and prevents the end of the paper being turned up by the return
of the lower arm or carrying piece Q, (afterwards mentioned) and is severed into
the proper length by cutting knives or shears P, P¹, the lower of which is stationary,
and level with the table of the machine, the upper one being actuated by the
eccentric P2, on revolving shaft P³, geared to the second motion shaft D.
The end of the web of paper is then turned up by the semi-circular oscillating,
or rocking roller R, the flat surface of which, when at rest, being level with the
table.
This roller R, makes part of a revolution for each bag, by being in communica-
tion, by means of strap R', to movable lever or arm, R2, attached to the side of the
frame.
This lever or arm R2, is actuated by boss R³, on the slide piece T³, (afterwards
described) in its backward movement.
When this boss R³, commences its forward movement, the lever or arm R2, and
strap R' are released, and the semi-circular roller R, is reversed by the assistance
of a flexible spring R*.
When the end of the web of paper has been turned or folded by the semi-circular
roller R, over the lower projecting arm Q, of the. right angled sliding carrier,.
(which is inserted in a sleeve, T³, formed on bracket T, attached to sliding
piece T, afterwards described, such bracket being hinged to the lower arm at the
rear) the upper arm T', is caused to rise at the proper time, by means of roller T,
which ascends the lever T', which is also caused to rise and form an incline at:
the proper moment, by connecting rod T"; and lever T¹³; T¹ coming in contact,

page_text: with loose boss T", attached by bracket Ts, to the inside face of the wheel T
which drives the printing motion.
Immediately the connecting rod T2, is out of contact with the boss T, the
inclined lever T, descends to a horizontal position, and the upper arm T2, falls onto
the end of the paper, which has been folded over the lower arm Q, holding it
securely by the assistance of the vertical spiral spring, T, until it is again released
as afterwards described.
At the time the two projecting arms, of the sliding carrier, are completing their
backward movement, the rear of the lower arm, comes in contact with two vertical
projections V, fixed in the top of the slide piece O2, of the spring-case O, previously
mentioned, which is carried back, compressing the springs O³, and allowing the end
of the web of paper to be folded back.
Previous to the end of the web of paper being folded back by the roller R, on
to the lower arm of the sliding carrier, the upper cutting blade or knife P, has been
lifted clear.
The paper is now carried forward by the sliding carrier in the following
manner-
5
As previously stated the sliding carrier is attached the bracket T', on slide
piece, Ts.
This sliding piece works in a guide or slide W, formed in the side of the frame,
and receives its to-and-fro motion, by being connected with a boss or arm, R³,
attached to rod or shaft W2, connected by boss W³, to the outside of the toothed
wheel T, which drives the printing motion.
When this slide piece T5, has carried the sliding carrier to the required distance
in the forward direction, the loose roller T, on the side of the upper-arm T², comes
in contact with, and ascends an adjustable inclined bracket T, and the paper is
relieved from the weight of such upper arm.
The front edge of the lower arm Q, which is covered by the folded end of the
paper, is inserted under an adjustable clamp, or holder X, which nips the sheet of
paper or blank, and holds it fast during the time it is being severed by the knives,
from the web of paper.
The part of the table over which this clamp or holder can be made to travel, is
serrated.
During the cutting operation, the slide piece and sliding carrier, commence their
return movement, the upper cutting knife P, being lifted clear in the meantime, to
allow the carrier to pass.
During the time the carrier is returning a tucker-blade Y, commences its descent,
deriving its motion from eccentric Y' and 1od Y, attached to longitudinal shaft P³,
geared by bevel wheels Y', to the second motion shaft D.
By the time the carrier has returned, the way is clear for the tucker-blade to
fall, and in doing so, it comes in contact diagonally with the blank of paper,
Fig. 11 striking it in the position indicated by dotted lines and tucking it in
between two revolving fluted rollers, Z, fixed immediately below the table
through which it is drawn and doubled up into the finished bag as shown in
Figs. 13 and 14.
Fig. 12. shows the fold or lap on the blank before being tucked through the
rollers Z.
In its descent the holder Y, of the tucker-blade Y, comes in contact with
lever, Y, attached to the back of the clamp, which holds the blank of paper
pressing the lever down, raising the clamp and releasing the bag.
The two revolving fluted rollers, ½, having a grooved pulley, Z', attached to
the end of one of them, are driven by cord or band, %, passing over
intermediate rollers, Z³ and communicating with grooved pulley Z, on the first
motion shaft K.
Immediately the finished bag is released, by the fluted rollers, it drops down on
to the table a, beneath, and between two plates, b, b; being fixed permanently,
to the underside of the top of the machine, and the other immediately above the

page_text: table a, on which the bags fall, on an upright 6, attached to rocking shaft 6³,
beneath, and as the bags fall they are pushed forward singly, in a vertical position,
and laid down flat, clear of the following bag.
The motion for this is derived by connection with the eccentrics Y', which
actuates the tucker-blade Y.
A number of pegs C C are caused to rise and fall, through the receiving table
in such a manner, that they drop when the rocking plate b, pushes forward the
finished bag, and immediately rise again after the bag is clear, thus preventing
the finished bag, from changing the position, and hindering the delivery of the
following bag.
The rocking plate b, is provided with openings or slots 64, to enable it to pass
the pegs, C C, on its return.
The rising and falling motion of these pegs, which are carried on bracket C C¹,
attached to rocking shaft C C², supported on one side of the machine, is obtained
by lever C C³, attached to rocking shaft C C2, which comes in contact with
cam C C, situated on the longitudinal shaft, P³, between the eccentric P³, which
works the cutting blade and eccentric, Y¹, actuating the tucker blade.
The bell-counter d, is driven by worm d', and worm wheel d², on longitudinal
shaft P³.
The machine is capable of dealing with several widths of paper, and the length
of the bag blank may be regulated by altering or adjusting the relative positions,
of the boss W1, of the slide piece T5, on the connecting rod, W2, and the boss W³,
on the toothed wheel T16.
The point to which the sliding carrier is permitted to recede can be regulated by
the set screw T10.
The printing apparatus, is rendered inoperative by disconnecting the frame L',
which carries he inking rollers L, from the vertical, oscillating or vibrating
lever M,
www wwing but the "form."
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
A triangular bag machine embracing the arrangement and combination of the
parts substantially as and for the purpose hereinbefore specified and illustrated in
the accompanying drawings.
Dated this 13th day of July 1893
JAS. T. PEARSON,
Agent.