Year: 1897

page_text: Date of Application, 14th Oct., 1897-Accepted, 18th Dec., 1897
Figure 5, a plan view of the machine with the work plate removed;
Figures 6-8 are views of the plunger separately and on a larger scale;
Figure 9, a view of the receiver for holding the labels which are to be attached ;
Figures 10, 11, and 12 views of the case or bag itself.
The machine is designel for covering such paper cases or bags Z, Figures 10,
and 12, with a covering of tinfoil and finally to stick a label 72 over the whole,
thus producing from the parts shown in Figures 10 and 11 a finished package
such as shown in Figure 12 which is especially suitable for cocoa powder.
The paper-bag-making machine used for making the cases Z is not shown in the
drawings as it is well known and also forms no part of the present invention. A
case or the like Z'just made by the said machine is placed on the core A, Figure 3,
from which a plunger A¹ is pushed forward as soon as a second plunger a lying
opposite has pressed against the same so that the case or bag Z lies with its bottom
between the plungers A and a. The case or bag Z held between the two pistons is
moved to the right in Figure 3 and pushed into a box C which has placed itself
exactly opposite the plunger a before the latter commenced its movement so that the
said plunger must pass through it in order to fetch the paper bag. As soon as the
bag Z arrives in the box C; the plungers A and a release the bag and the box C rises
into the position shown in Figure 3 opposite a piston B which next moment pushes
the bag Z out of the box into a frame d of a wheel D which frame contains a tinfoil
casing or sheath 71 so that the bag Z is inserted in the casing Z. The wheel D
has here four such frames d in which the tinfoil cases lying on a table D¹, Figure 1
are inserted laterally by hand.

page_text: The movement of all the mechanisms herein before described takes place from four
shafts E E¹ E² E³ operated by eccentrics and cam discs1 to 18, and connected with one
another by means of toothed wheels and driven by any suitable source of power, as
may be seen in plan view, Figure 5, in which the work plate has been removed.
Thus for instance the plunger A is driven from a cam disc 1 mounted on the shaft E
which cam disc engages, by means of a push rod, with a lever A³ pivotting on a
spindle A+, said lever being connected by means of a link A2 with the plunger A¹,
similarly the plunger B is moved by means of a cam dise 2 and a lever B² pivotting
on the same shaft A and link B¹, and finally the box C is moved by a cam disc 3
a two armed lever c², link c¹ and rod c, and the plunger a by means of a cain disc 18
on the shaft E2 which cam disc engages, by means of a push rod, a lever a² pivotting
on a shaft a³ which lever is connected with the plunger a by means of a link a¹.
The transport wheel D which is provided with four frames turns in quarter
revolutions so that a tinfoil case inserted from the table D¹ laterally in a frame d
(Figure 1) must first make a revolution of 180° before it comes opposite the piston
B which inserts a paper bag in it.
In order to produce these quarter révolutions pins d' are arranged at 90° on
the face of the wheel D which is turned towards the box C, whilst the rod c
carries a swinging fork cl which, under the action of a spring, tends to bear
with its pin cl2 on the arm, which carries it, of the rod c. The fork cl has
also a bevelled surface c¹³ facing the pin d. When the rod c moves downwards
from the position shown in Figure 1 in which the fork c¹ has engaged under a
pin d', the surface c¹³ encounters the lower placed pin d¹, the fork receives a
swing towards the left in Figure 1, in order to slip over this pin and then
swinging back under the action of its spring to engage beneath this pin. On
the following upward movement, the wheel D must therefore be turned 90°, that
is to say until the fork together with the re-engaged pin again reaches the position
shown in Figure 1, and so forth. In order as far as possible to avoid any dead point
in the wheel D and to obtain each time a precisely exact adjustment, the shaft of the
wheel D has a brake disc D² against which a brake lever D³ is kept pressed by means
of a spring D'. There is however also a carriage F lying in the plane of the wheel
and at the height of the shaft of the same, and carrying a fork f on its side facing
towards the wheel, which carriage is moved from an eccentric 4 of the shaft E by a
link and a one armed lever pivotting on a point f³ and pressed on the eccentric by
a spring so that the carriage after each quarter revolution of the wheel D engages
with its fork above and beneath the frame d facing it, and thus secures the wheel I)
against any unauthorised movement.
After the two bags or cases Z and Z have thus been inserted one in the other, they
must be conveyed to that part of the machine where a label Z2 is stuck on, or around,
them.
For this object the wheel D makes another quarter revolution, in consequence of
which the bags come into position over a fork G into which they are brought and by
which they are then conveyed over a second fork J, Figures 1 and 2, pivotting on a
vertical spindle i. The ejection of the bags from the frame d and into the fork G
takes place by means of three pins h which penetrate through the holes ² in the
framed. The pins h are in fact mounted on a carriage H which is moved up and
down by means of a cam disc 5, Figure 3, by a link H¹ and lever H2 the link H!
being pivoted to the carriage H at H³. The lever H2 rests on the cain disc by its own
weight. When the bags are inserted in the fork G, the latter is moved on its guide g,
which consist simply of a bar on which the fork rests by means of an eyelet, said
movement being effected by an eccentric 6 on the shaft E3 and a link and lever g¹ g²
to such an extent that the bag comes to stand over the second fork J travelling on
a track J². The lever g is a one armed lever pivotting on a shaft g³ as shown in
Figure 4.
When the forks G and J are in position one above the other, an ejector K,
Figures 1, 2 and 4, penetrates the fork G, said ejector being operated by a cam
disc 7 by a guide rod k, link k¹ and one armed lever k², and presses the bags into the

page_text: fork J which then by the action of rods J³ J* J5 and Jo engaging its arm J¹ turns
90° in order to reach the position shown in Figure 2.
The bags must then be again withdrawn from the fork J and brought in a vertical
position under a stamp L divided into 4 parts, which stamp is shown separately in
cross section in Figure 8.
This is effected by means of an elbow piece M, Figure 1, which is turned upwards
on a shaft m by means of a rod M¹ operated by a cam 9 and penetrates the fork J
and thus removes therefrom the bag resting therein and brings it in a vertical position
under the plunger L. In order however that the bags in this vertical position may
not fall forward and thereby out of the elbow piece M it is connected by means of
a pipe M² with an air pump N so that the paper bags at the commencement of the
movement of the elbow piece M are sucked against the latter. The air pump is
operated from the eccentric 10 of the shaft E. The plunger L then enters the bag,
opens the same by its parts moving radially apart, and simultaneously thereby grips
it in such a way that it carries it with it in its succeeding upward movement and
then pushes back the elbow piece M into its position of repose. The plunger L then
again descends until it causes the bag held by it to encounter a gummed label which
has in the meantime been pushed beneath it. The plunger L which is shown
separately and on an enlarged scale in Figures 6-8 is suspended in a crosspiece O
which moves vertically up and down in such a way that its upright can slide radially
with its end, Figure 7, which are bent to an angle in guides 12 as soon as a cam plate 0¹
is turned by means of its rod 02 for which object it is provided with a crank arm (s
which is oscillated from a cam disc 11 of the shaft E by means of rods o 01 02 0³,
Figure 4. The disc 0¹ acts against rollers (3 on the ends of the plunger parts, whilst
springs 5 engaging on other pins 14 tend to maintain the rollers 13 pressed against the
cam dise 0. The bar 02 is revolubly but not adjustably mounted in the curved
piece O of the cross bar O and the crank arm 0s is arranged on the rod O² and is
prevented by the crosspiece 05 from moving with the rod. The crosspiece O with
the parts hereinbefore described thereto belonging hangs in a frame P, Figure 4,
which is moved up and down in the manner herein before described by means of
lever P¹ and rod P2 from a cam disc 12 on the shaft E². The weights shown in
Figure 4 serve for counterbalancing the somewhat weighty crosspiece O with the
parts belonging to it. The labels which are to be gummed lie in a pile one on top
of another in a receptacle Q, Figures 1 and 9, and this pile is automatically raised
by any suitable mechanism as labels are removed from the receptacle Q so that the
uppermost label always lies at an equal distance from the upper edge of the
receptacle.
.
The feed mechanism consists simply of a rack bar Q2 mounted on a plunger Q¹
of the receptacle Q and a cogwheel Q revolved by a ratchet wheel Q³ and engaging
in the said rack bar. A pawl q¹ pivoted at q is connected by a link q² with any
suitable oscillating part of the machine, in the present case for instance with the bar
hereinafter described for moving a gumming stamp R. This stamp R must have
both a vertical and a horizontal movement, the first, in order to enable it to descend
onto a gumining roller S for the purpose of taking up gum, and into the receptacle Q
for the purpose of removing the topmost label and the second in order to pass
alternately from the gumming roller to the label receptacle.
For this object the stamp R travels on a horizontal bar R¹ of a bracket or curved
piece R2 mounted on a cross piece R³, the latter being guided vertically on a bolt R+
and receives its movement by means of a two armed lever R³, Figure 4, and rod Re
from an eccentric 13 of the shaft E2. The link q² for the pawl q' is also mounted on
the lever R5. The horizontal adjustment of the stamp R on the rod R¹ takes place
by means of rods 12 from an eccentric 14.
The gumming roller rotates in the ordinary manner in a gum reservoir S¹ and is
driven from the shaft E3 by means of belt pulleys E and E³, Figures 4 and 5. The
stamp R thus first receives gum from the roller S, then descends into the receptacle Q
on the uppermost label Z2 therein contained and carries it upwards with it by
adherence. At this moment two rules T push themselves under the label lifted by

page_text: the stamp R after which the stamp with the label descends on the rules. The ends
of the label then simultaneously slip into opened claws or grips U, Figure 9, which
then close and retain the label so that the stamp which then again moves upwards
frees itself from the label and leaves the latter lying on the rules T. The claws or
grips U then open, the rules with the label Z2 slide back and bring by that means the
latter under the raised stamp L, which holds the paper bags and over an opening
closed by spring flaps V, Figure 6, under which there are two horizontally movable
jaws W.
The stamp L then descends and presses the bags with their bottom against
the label so firmly that the flaps V open and the stamp L presses the bags Z7,
together with the label Z2, extending high up the sides of the bags, between the
jaws W which then approach and press the label laterally on the outer casing Z'
causing it to adhere firmly. Finally the stamp L shuts its parts together, the
jaws W separate and the finished package shown in Figure 12 falls into a collecting
channel X in order to pass into a receiving box from which they may be removed for
the purpose of being filled or the like.
An eccentric 15 acting on an elbow piece T', Figure 1, by means of a rod T³ which
engages with a one-armed lever T2 pivotting on a shaft t, and of a link T connecting
the lever T2 with the elbow piece T¹, serves for moving the rules T which are inter-
connected by means of the elbow piece T¹.
The claws or grips U are moved by a cam dise 16 on the shaft E, the said cam
disc moving by means of a rod U¹, Figure 4, a two armed lever U2 which engages
by means of a link U³, Figure 9, a rod U5 connected with a crosspiece U and
vertically guided. The ends of this crosspiece are connected by links u with levers u¹
which are mounted on the shafts u² of the claws U. The jaws W are operated by
cam discs 17 mounted on the shafts E and E2 by means of elbow levers W¹ and
rods W².
The weights shown in the drawings are all merely counterweights for counter-
balancing the several mechanisms and for facilitating their movement.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated
to me by my foreign correspondent, I declare that what I claim is :-
1. A machine for covering paper bags (Z) and the like with tinfoil casings (Z¹)
and for sticking a label (72) on such casing, consisting of a core or mandrel (A)
receiving a finished paper bag (Z), a plunger (A¹) movable in the said mandrel and a
second plunger (a) standing opposite the first one, said plunger (a) being first moved
through a box (C) movable vertically and then towards the piston (A¹), so that the
bag (Z) lies clamped with its bottom between both plungers, after which both
plungers again move backwards and thereby draw the bag from off the mandrel (A)
and into the box (C), which latter then moves upwards with the bag (Z) and arrives
between a third plunger (B) and a frame (d) of a wheel (D) provided with several
such frames which contain the tinfoil casings (21), so that then the plunger (B)
pushes the bag (Z) out of the box (C) and forces it into such tinfoil casing (Z¹) of
the wheel (D), after which this now formed double bag (Z Z¹) is conveyed to the
labelling mechanism, substantially as herein before set forth.
2. A machine such as herein before described in which the wheel D has four
frames (d) and moves backwards in front of a table (D¹) which is arranged opposite
the box (C) containing the bag (Z) in front of the plunger B, on which table the
tinfoil cases (Z) lie in a pile in such a way that a tinfoil case may be pushed by
hand into the frame (d) of the wheel D standing in front of it, after which the wheel
revolves until the frame (d) with the tinfoil case (Z¹) comes to lie in front of the
box (C) at which moment the insertion of the paper bag (Z) into the tinfoil
casing (Z) takes place, substantially as described.
3. A machine such as hereinbefore described in which the conveying wheel on its
face is provided with pins (d¹) whilst a fork (c¹) is pivotally mounted with a flexible
or spring action on a push rod (c) operating the box C, said fork having a bevelled
contact surface (c³) so that on the descent of the rod (c) the fork (c¹) with its
bevelled surface (cs) encounters the lowest of the pins (d¹), is first pushed to one side

page_text: and then springs back under this pin under which it then engages on the rod (c)
ascending and thereby further revolves the wheel (D) so that at the moment when
the box C reaches its highest position a new frame (d) with the tinfoil casing (Z¹³)
therein always stands in front of the same substantially as described.
4. A machine such as herein before described in which a brake device is provided
on the shaft of the wheel D in order to avoid any dead point of the wheel substantially
as described.
5. A machine such as hereinbefore described in which the brake device for the
wheel. D consists of a brake disc (D2) keyed on the shaft of the said wheel on which
brake disc a one armed lever (D³) is pressed by means of a spring (D) or other like
device, substantially as described.
6. A Machine such as herein before described, in which a reciprocating carriage (F)
is provided opposite the wheel D, which, after each partial revolution of the wheel D
amounting each time to the distance between two frames d, engages one such
frame (d) by means of a suitable device (for instance a fork f) and thereby immovably
locks the wheel in each fresh position, substantially as described.
7. A machine such as hereinbefore described in which the frames & have holes (d2)
in which pins (h) (movable up and down) penetrate as soon as the frame has reached
the lowest position above a fork G by which means the bags (Z Z³) contained in each
frame (d) are expelled from the frame and pushed into the fork (g) which then
conveys them over a second fork of a transport arın J, they being pushed on a
guide (g) by means of a suitable rod, after which an ejector moving up and down
penetrates into the fork G and expels the bag (Z Z¹) from the same and forces the
same into the fork of the arm J substantially as described.
8. A machine such as hereinbefore described in which the forked arm J turns on a
spindle (i) in such a way that after receiving the bag (Z Z¹) it turns away from the
fork G and comes over an up-and-down oscillating elbow piece (M) which moving
through the fork of the arm J, lifts the bag (Z Z!) out of the said fork and brings it
under a plunger (L) divided into four parts and vertically moving up and down, which
plunger effects the labelling, after which the fork arm swings back into its former
position, substantially as described.
9. A machine such as hereinbefore described in which the parts 1 of the plunger L
are bent at an angle at their upper ends mounted in guides (11) and pressed
by springs against a cam disc (0¹) revolving horizontally, which disc effects or produces
a pressing apart of the parts of the plunger L and a gripping of the bag (ZZ)
standing on the elbow piece M as soon as the plunger L has penetrated this bag, after
which the plunger with its bag rises, whilst the elbow piece M returns to its position
of repose, in order then to descend on to a gummed label (Z2) pushed under it, which
it presses together with the bag (Z Z¹) between two spring flaps (V), which first causes
an adherence of the centre of the label against the bottom of the outer tinfoil
casing (Z) and then a pressing of the ends of the label against two opposite longitudinal
surfaces of the tin foil casing (Z) in the manner substantially as described with
reference to figures 6 and 12 of the drawings.
10. A machine such as hereinbefore described, in which beneath the flaps V there
are arranged two reciprocating jaws (W) which, as soon as the plunger L has pushed
itself through the flaps V together with the bag (ZZ) and the label (Z2) lying
thereon, move towards the plunger L and press the label against the sides of the
casing () and thereby cause it to adhere firmly, after which the jaws (W) again
separate, and the parts of the plunger L close together so that the finished
bag (ZZZ2) slips off the plunger into a transport channel (X,) substantially as
described.
11. A machine such as herein before described, in which the labels (Z2) are piled in
a receptacle (Q) in which they are slowly raised by means of a plunger (Q¹) in
proportion as they are used so that the topmost label of the pile always stands at
an equal distance from the upper edge of the receptacle (Q,) substantially as
described.

page_text: 12. A machine such as hereinbefore described, in which the plunger (Q¹) of the
receptacle Q is raised by means of a rackbar (Q2) attached thereto, a cogwheel (Q')
engaging in said rackbar, which cogwheel receives a rotation by means of a
reciprocating pawl (g') which acts on a ratchet wheel mounted on the shaft of the
said cogwheel (Q), substantially as described.
13. A machine such as herein before described, in which the withdrawal of a
label (Z) out of the receptacle Q is effected by means of a stamp (R) moving
horizontally and vertically, the stamp being first pressed on a gumming roller (S)
and thereby provided with gum, then moved to the receptacle Q, lowered into the
same and pressed on the topmost label, attaching the same to its under surface,
after which the stamp again rises together with the adhering label, substantially as
described.
14. A machine such as herein before described in which rules (T) slide to and fro
beneath the plunger L and the stamp R in order to guide under the plunger L the
label (Z) lifted by the stamp R substantially as described.
15. A machine such as hereinbefore described, in which clamp jaws U which
alternately open and close are arranged at the sides of the label receptacle (Q), in
which jaws the stamp R in descending on the rules T which have been pushed
beneath it inserts the adhering label, whereupon the jaws U close, so that the label
on the stamp (R) again rising remains lying on the rules (T) and may be conveyed
by the same under the plunger L after the jaws have opened, substantially as
described.
16. The general construction and combination of parts, taken as a whole, forming
the improved machine for covering paper cases, bags, boxes and the like with tinfoil
and for labelling the same substantially as hereinbefore described and illustrated.
Dated this 13th day of October 1897.