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Патент USA US2124376

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July 19, 1938'.
_
' J, RéNA
2,124,376
PRINTING APPARATUS
‘
>
Filed April 9, 1936
28
+2
29/146‘
’
5 ‘Sheets-Sheet 1
'
46-,”
H9 3.
16
f0
38
Srwentor: _
Ql/ Rona,
Bg'
:
. -
‘
'
‘j ‘
i
;
(Ittornegs ~
July 19, 1938.
J, RéNA
I
PRINTING
'
2,124,376
APPARATUS
Filed April_ 9, 1935
W
>
5 Sheets-Sheet 2
Zhwentor :
'July 19, 1938.
v
J; RéNA
I
PRINTING
2,124,376
APPARATUS
Filed Aprils, 1956
5 Sheets-Sheet 3
IIIIHUQ-J
47
48
IIIIIIHIIIIIIITIWIIIIIII
3maentor I
wééwf (Ittorneg .r.
July 19,‘ 19334‘
' J. RC'JNA
2,124,376
PRINTING ‘ APPARATUS’
Filed Aplfilv9, 1936
5 Sheets-Sheet 4
3nventor :
(Ittomegs -
July 19, 1938..
'
J. RONA‘ '
2,124,"376 '
PRINTING APPARATUS
' Filed April ‘9', 1936
5 Sheets-Sheét 5
_ 3nbentor' I,
an a.
8g :
M
-
'(Ittornegéi
Patented July 19, l938 2,
* 2,124,376
, vMTEu-STATES
‘
'
PATENT oF-F'IcEi
2,124,376
PRINTING APIfARATU S
Josef Rona, Budapest, Hungary
Application April 9, 1936, Serial No.‘ 73,559
In Belgium April 8,1935
V 6 Claims. I (01. 101-35)
This invention relates to a printing apparatus,
more particularly to an apparatus for the ‘print
ing of box-shaped articles such ‘asmatch-boxes
shaft '1 and of the intermediate gearing 8, 9.
The free end of the shaft 5 carries a disc 10 ‘by
which a conveyor belt 12 guided on rollers II is
and the like.
moved.
15.
'
-'
'
One of the Objects of the invention is to pro
vide an apparatus for printing advertisements or
the like on boxes and more particularly on the
friction surfaces or other flat sides of match-con
tainers in a continuous manner.
10
'
'
Another object of this invention is to provide
a printing apparatus for the above named pur
cam 13. The end, I‘! of the lever is pivotally con
nected at 18 with a link I9 pivotally, connected 10
at 20 with the segment 22 rotatable Sin the
bracket 2|.
which the boxes are guided by "means of rela
' The free end of the conveyor belt 23 is mount
ed on the segment 22 and moves on guiding rollers ‘
tively
simple
construction.
'
’ V
'
‘
Other objects of the invention will appear from
the following description and the accompanying
drawings which illustrate constructional forms
of the printing apparatusaccording to the‘ in‘;
vention by way of example. In these‘ drawings: '
Figure 1 is a side view of the ?rst constructional
form,
-
‘
'
Figure 2 is a sectional view on the line 2-2‘ of
Figure
1,
V;
I
‘
V
'
Figure 3 is a horizontal sectional view on the
no car line 3-—3 of Figure 1 and
.
,
Figure 4 is a horizontal sectional view on the
Enema-T4 of Figure 2.
_
V
Figure 5 is a side view of the second construc
tional form.
30
'
,
'
Figure 6 is a plan View of Fig. 5 and
,
Figure 7 is a partly sectional View of a detail
on a larger scale of the arrangement shown in
Fig. 5.
'
24‘, whereas the free end of the conveyor belt, is '15
subjected‘ to‘ the force of the spring 25, which is
connected at its other end at 26 with a ?xed
p'art'of the machine, for instance, with the rails l.
Opposite to the section 12’ of theconveyor belt I
12 a second conveyor belt 21. moves, guided on '20
rollers '28. The part of the latter belt, being over
the highest guiding roller of the conveyor belt 12,
is in?uenced by a press roller 29 mounted in'a
swivel 3.1‘111'29' and pressed by'means of'the
spring 29"‘ against the channel or rail 30 con- 25
veying the ready printed boxes. The channel 30
is joined horizontally to the said highest guid
ing roller ll of the conveyor belt l2. The ready
printed boxes 2 are conveyed by two belts 3|, 32
the; horizontal portions of which are situated 30
above and below ‘the boxes.
'
The driving of the conveyor belts I2, 21, 31,
and 32 is derived in a suitable manner from the
'
Fig. 8 is a side view of the third constructional
main driving gear of the machine. In the con;
‘35 form, the frame of the apparatus beingomitted,
structional
gearing‘ 38, form
39, 40
according
isprovided
to' Figures
for this1-4
purpose.
a belt
On the shaft 4| of the pulley 40 one of the guiding
Fig. 9v shows on a larger scale a detail of the
conveyor belts,
‘
‘
Figs. 10, 11 and 12 show details of the appara
tus according to Fig. 8 on a larger scale, Figs. 11
40 and’ 12 being sectional views on lines'l'|—ll and
l2--l2 respectively of Fig. 8. '
.
. '
Fig. 13 shows on a larger scale the upper‘ part
of the guiding device for the printed boxes to
gether with a signal apparatus,
45
I
carries
a singlea piece
cam disc
with l3the
which,
disc however,
10. On the
alsowall
forms
13,
a vlever l5—ll is rotatably mounted at M, ‘the
lever end l5, having a roll Nico-operating with the
poses which works in a reliable manner and in
.15 ‘
20
By‘the side of the disc ID the shaft '5
‘
.
Fig. 14 is a plan View of the same.
Fig. 15 is a fragmentary view showing the end
of the conveyor belt I31 opposite that appearing
rollers 42' for the conveyor belt 31 is mounted.
Also on-the same shaft a‘ toothed wheel 43 gearing
with the toothed wheel 44 is provided. The shaft =40
45 of the latter carries one of the guiding rollers
4'6 for the upper conveyorbelt 32.
H
The printing of the boxes is accomplished by
the printing rollers 33, “the boxes being carried ’
between them by'means of the conveyor belts I2, ‘45
21. The drive of these rollers is accomplished in
a known manner by means of chain gears or the
like. Each printing roller is at the same time the
In Figures 1-4 of the drawings I is a guide chan
abutment of the other printing roller. The print-.
ing surfaces advantageously consist of hard rubber 50
50 nel or guide rail on which the boxes 2‘ are con
printing blocks with letters or ?gures of conical
veyed continuously forward in an 'uprightposi
tion by means of a suitable device. 3 is’a vertical cross section. The hard rubber printing blocks
wall of the machine frame 4'. In this wall a rest on a base of soft rubber.
The‘printing rollers 33, 34 are supplied with
shaft 5 is supported by main bearings, driven from '
in
Fig.
8.
'
'
.
.
55 the/power transmitting ‘device 6 by way of the
paints by means of inking devices 35, 36‘ in a 5'5’,
2,124,376
manner known per se.
~
..
r
a,
Opposite to the head 58, the bottom of the
The drive of these de
vices also, is accomplished in a manner also
guiding channel or rail l is provided with an
known per se.
opening.
7
‘
.
The apparatus works in the following man—
The disc 49 is rotated by means of the toothed
wheels 41, 48 and owing to the eccentricity of
the groove 50, the roller 5! running therein
swings the angular lever 52 on each revolution.
By means of the link 55 the bar 51 guided at
ner:
The boxes 2 are conveyed forwardly in a contin
uous manner in the channel 6. Known means,
as for example conveying belts, may be provided
for this purpose. ‘The foremost box leaves the
10 channel "at its “front edge and. is caught by a
59, is carried, itshead entering the opening in
the bottom of the guide I and moving the box 10
2 located in this opening between the conveyor
stop 31 ?xed on the conveyor‘belt 23. This stop
is adapted to convey the boxes separately between , ,belts I2, 21.
the conveyor belts l2 and 21, as will be herein;
.
In this manner a continuous‘ supply of the
boxes '2 to the printing device is attained.
after described.
During the revolution of the cam disc I3 the,
The forward motion of the boxes 2 in the 15
cams. l3’ engage with the roller l6 of the lever.
channel or rail l is obtained in this construc~
As soon as the roller 18 runs up on the cams 13',’ r tional form by means of a conveyor belt 64,
the lever l5, I1 is swung and the segment 22 is on which the boxes rest and by which the same
pressed down by the link i 9. In this way the end,
are carried.
20 of the conveyor belt 23 being connected with the
‘segment 22 is drawn downwards and the stop 31
is moved upwards.
The belt 23 together with the stop 3''! carry the
box upwardly until the latter is caughtbe'tween
25 the parts .of the conveyor belts l2 and 21, which
are substantially parallel to each. other. Simul
taneously with the described movement of the
conveyor belt 23 the spring 25 is stretched and
carries the parts back into their initial position,
30 when the roller It moves into the depression be
tween the ‘cams l3’, whereupon the stop is ready
to again engage a box to be provided with print
ing.
which is accomplished by means of a strap
pulley 8| arranged on the shaft 5.
A second strap-pulley 60 provided likewise on
the shaft 5, drives the disc 40 by means of the 25
cord 66.
In Figure 8 again I designates the guide chan
nel for the boxes. In this constructional form
the boxes 2 are carried, as well as in the con
structional form shown in Figure 5 by means
of a headed bar 51, guided at 59 between the
conveyor
40
45
98
carrying
the 1 boxes
'the bar 51 and the manner of guiding of the
boxesis a different one.
packing device.
the pivot 56 to the rod 51. r The motion of the
rod is the same as in the constructional form 45
On the main shaft 5 a pulley 88 is mounted
being driven by a belt 67.
arranged rotatably in the single armed lever ‘Ill
Eventually in this . way, the
shown in Figure 5.
Preferably, the printing matrices of the print
‘II is arranged, gearing with a toothed wheel 13
being ?rmly wedged on the shaft 12. This shaft
carries a disc 14, forming one of the guiding 50
printing surfaces whilst the other printing roller
discs of the conveyor belt 15. This conveyor
belt runs along one side of the large disc Tl
arranged on the shaft 16 and is tensioned by a
roller 18, the latter being carried by an arm 19
which is rotatably mounted on the pivot 80. 55
The number of
the printing rollers and of the matrices is de
pendent on the extent and number of colors of
55 the printing matter desired.
In the second constructional form shown in
Figures 5-7 the supply of the single boxes to the
conveyor belts l2, 2? or to their parallel sections
The disc 18 is pressed against the conveyor belt
in a suitable manner as for instance, by a spiral
spring surrounding the shaft 80.
I2’, 21’, respectively, takes place in a different
a
-
=
-
This tension
ing device is not shown in the drawings as such
devices are well known to those skilled in the
.
The drive is accomplished likewise by means of
a pulley 6, carrying on its shaft 1 a wedged
toothed wheel 8, driving the toothed wheel 9 on
the shaft 5. On the shaft 1 is further a toothed
65 wheel 41, which gears with the toothed wheel
48 mounted in bearings of the machine frame.
The shaft of this toothed wheel carries a disc
49 (Figure '7) having an eccentric groove 50.
This groove guides a roller 5|, arranged rotatably
in a bearing in thearm of the angular lever 52
which is mounted rotatably at 53. By means of
a link 55 and pivots 54 and 56 this angular lever
is pivotally connected with’ a, bar 51 guided at
59. Thebar 51 is terminated on the upper end
in a head 58.
>
On the main shaft 5 further a toothed wheel
1
manner.
The main shaft
pivoted at 69. This lever is connected by means
of the pivot 54 to the joint 55 and the latter by
printing on the box can also be dried, this being
unnecessary in the case of using quick drying
serves merely as an abutment.
35
carries further as in the constructional form
according to Figure 5 a disc 49 provided with a
groove 50. The groove 55 carries a roller 5| 40
ing rollers 33 are interchangeable. Also, one of
50 the printing rollers only may be provided with
75
15,
wards between the parts I2’, 21’, of the conveyor
belts which are substantially parallel to- each
other, the said box is printed. After leaving the
parallel section !2’, 21’ of the conveyor belts the
box is introduced by means of the spring pressed
roller 29 into the conveying device 30, 3|, 32 in
the manner already described. Here the box
travels further either to be subjected to further
processes of treatment, or to be supplied'to the
printing paint-s.
60
belts
through the. printing device, but the drive of
,
During the time that the box is moved up
3.5
The conveyor belt 64 moves on
rollers 55'. The shaft of one of these rollers is 20
provided with a strap-pulley 63 the drive of
art.
Also the other tensioning devices referred
to in the further course of the description are
pressed in the same manner.
The conveyor belt 15 .runs on the opposite
,
side of the disc 14 on, guiding rollers 8|, 82. 65
Beginning at the latter roller the belt in its sec
tion 15’ forms one of the substantially vertical
guides for the boxes 2. In its further course
the belt 15 is guided by the large disc Tl, it is
then continued ina substantially horizontal sec 70
tion 15" and, ?nally, it runs round the guiding
rollers 83, 84.
-
The toothed'wheel 13 arranged on the shaft
‘[2 gears with a further toothed wheel 85, firmly
wedged onvthe shaft 86. The toothed wheel 85 75
drives the teethetl Wheel ‘33.8,’. which-is earrieliiby
the Shaft 81. end geese
teethed wheel
90, wedged on the shatt ‘8_9_.
'
-
. This . heft t9 eerheee disc tracts when
reyer belt. is earried’iblv the rollers ‘93,; 9,4
clamps Ila consist in a frame, which. on
she side is .eehhected with the rail I15, whereas ,
the other part of the same is provided with a
thread_;,for a, screw I20. The lower end of this
-sereWathrusts-.asainst the elastic Strip H1. By
by setting ofithe screw, the distance between the‘
strip II I and the rail “5 and, also, the clearance
the tensioning-roller 91 carried by, the arm 9t
hivetedet 95- The hex 2 lifted'bvlthe roden
space I2‘I,(Figure ‘11), for the boxes 2, can be
adjusted. The boxes are adapted to pass loosely
eters between the'substantially vertical sectionlgg.’
of they conlleyor belt ‘Stand the opposite sec,
tion 13’ of the conveyor belt ‘I5, being likewise
substantially vertical.
between the rail “5 and the belt H1. they must
hoturub on the railI I5. The screw I20 is secured
In the further course of the movement, that
The ‘clamp, ,I IBaKFigure 12) serves as a device
in itsadjustedposition by the lock nuts I22, I22.
is to say, during the printing operation the tor-‘retarding the movement of the boxes passing
boxesare carried by a third conveyor belt 9,8, through the lower end of the guide. With this
the‘ substantially vertical section 38' of, which end in View a1 clamp H8a is provided at the top
, is opposite to the section ‘I25’ of the conveyor
belt 15.-end parallel to the same
. Y .
I The conveyor belt isdrivenbya disc I00 car
ried by the shaft 979. This disc is driven by a
whereas to the lower end of the same thelower
free end of the strip H1 is ?rmly connected, for
example riveted. The bolt I24 is surrounded by
for example by means of the rivet head I28 on
veyor belt is taken over by the boxes 2, which
latter are carried between this belt and the cone
the upper end of the box 2, thus in failure of
the space being present at the clamps H8, the
a spiral spring I26, thrusting from one side on
the strip II’! and from the other side on a plate
I21.
At this clamp the strip H1 is supported
.vevor belt 15- By the guiding roller. H14 thebelt
spring I26 exerts on the boxes 2 entering the
is guided over in the substantially horizontal
clamp H.8a an elastic pressure which slackens
section ,918". After the roller I04 the belt runs
the movement of the boxes. The pressure of the ~30
spring I26'can be adjusted by means of the
, Thus the boxes individually supplied, are car
ried by the belts ‘I5, 92 throughthe apparatus
and the boxes 2 leave the same on the right hand
' end (in thedrawings) of the horizontal parallel
guide 15", 9,8". In the drawings the direction of
movement of the conveyorbelts is marked by
arrows.
'
Figure 9 shows as an example a constructional
form of the conveyor belt 15. In order to in
crease the friction of the belt on the boxes 2 for
insuring movement of the latter, the conveyor
belt 15 is provided on its side adjacent to the
boxes with a layer of rubber or like material 15a.
Of course, instead of the conveyor belt 15 the
conveyor 92, 98 can be likewise constructed.
In the constructional form according to Figure
8 the printed boxes are carried over the top of a
chute I08 through which the same are conveyed
for further dealing or packing purposes. The
supply of the boxes to the chute is e?ected by
elastic arms I09 arranged on the boss ‘I I I rotat
ably mounted on, the shaft H0. On this shaft
so
115
with an opening I23 in which a bolt I24 is guided.
:Tneupper part of this bolt forms a screw I25,
toothed wheel I_0_I, gearing with the toothed wheel
{it}, carried on the shaft Ill. The guiding ‘of the
belt 93 is accomplished at ?rstby the discs IIIIZ,
I03. The latter disc guides the belt intotthe
vertical section 98’ and from this point the con
over the guiding roller 105, then over the ten
sioning roller IIl§ and the ‘roller H11.
_
40
10
. screws I25 and the nut I29, respectively. The
locking-nut I30 secures the screw ' I25 in the
adjusted position. If the guide H5, H1 is ?lled
with boxes 'up to the retarding device H8a, the I
boxes constitute in themselves a suflicient resist
ance so that after a certain period of operation‘
of the apparatus the pressure of the spring I26
can be released and, respectively, the strip H‘!
40
can be lifted off the boxes 2.
The guiding rail I I5 terminates in a horizontal
part H5’ returning the boxes into the upright
position on a conveyor belt Hi.
This conveyor
belt carries the boxes onto their place of desti
nation. . The end of the conveyor belt repre
45
sented in Figure 8 runs over a roller I32 mounted’
on a shaft I33 and the shaft I33 of the roller
carries a pulley I34. This pulley is driven by
means of the crossed 'belt I31 from the pulley
I36 being wedged on the shaft I35. The latter 50
carries also the guiding disc 65 for the conveyor
belt 64 carrying the boxes 2 to the guide I. The
opposite end of the conveyor belt I3I extends over
a roller I32a. mounted on a shaft I 33a as shown
is carried a pulley H2 which is driven by means
of the belt H4 from the pulley H3 of the shaft
93. The rotation of the shaft III) is controlled
in Fig. 15.
in such a manner that whenever a box is leav
that the boxes can be conveyed further in any
direction. For this purpose it is only necessary
to,v release the clip connection I I6 and to arrange 60
ing the sections 15", 98" of the pit I08; one of
the elastic arms I09 is in a nearly horizontal
position so that the box 2 to be conveyed is
pushed under this arm and enters the chute I08.
In this chute the boxesfall ?atwise and enter
then the, guiding rail H5. This rail has an :U
shaped, cross section (Figures 11 and 12)‘ and is
detachably ?xed on the‘upper end of the chute
IE8 by means of a clip .HIl being screwed on
(Figures 8 and 10). At a certain distance from
the opening of the U-shaped rail H5 runs, par
70 allel an elastic metal, strip I II, guiding the boxes
{during descent in the rail. The elastic strips
It‘! are fastened on the rail H5 by means of
clamps H3 and HBa (Figures 101, and 12). The
rail H5 and the clamps H8, Hilq. are connected,
tr meets efserewe Her.
v >
-
.
55
- The detachable connection of the chute I08
with the guide‘ H5, H1 affords the advantage
the same on one of the other sides of the chute
I98. In Figure 8 another conveying direction of
the boxes is represented by dot and dash lines.
In this case the clip H6_ is arranged on the op
posite side at H6’ of the chute I08 and the rail
H1 is turned 180 degrees with relation to the
?rst described arrangement.’ As for the rest the
apparatus remains’v unaltered, It is self-evident
that the conveyor belt [3| will then be arranged
at the proper place as indicated at I3I'. It is 70
driven by a belt I31’ and a pulley I34’. It is also
possible, to arrange the rail on the chute at an
angle of 90° from the position represented by full
lihesse that. the boxes. can». be conveyed accord
ihstelrnehr‘direetiqn
4
2,124,576
In order to be able to observe the boxes and
edges of the belts for printing upon opposite
a door I38 with’a window I39 is arranged on one
sides of the boxes as the belts move said boxes
side of the chute (Figures 8 and 13). The door
I38 is hinged at I40 and is provided with a handle
I4I. After turning down of the door I38 the
upwardly, and means for guiding the box-shaped
upper end of the chute I08 becomes accessible
and improperly positioned boxes as well as im
properly printed boxes can be removed.
On the chute I08 is further an alarm device
arranged giving a signal whenever the boxes stick
feeding means.
shaped articles, spaced parallel conveyor belts
in the pit or in the guide H5, I IT. For this pur
to be stamped, means for driving said belts, means
pose a flap I43 turnable on the pivot I42 is ar
for feeding said articles one by one between said
ranged.
conveyor belts, means for guiding opposite sub
stantially parallel portions of the belts ?rst verti
This ?ap is provided with a contact
piece I45 connected by the conductor I46 with
one pole I41 of a source ofelectric current I48.
The other pole I49 is connected by the conductor
I50 with a contact piece I52 ?xed on the pit I08
on an intermediate insulator I5I. The ?ap I43
is normally held in closed position by means of
a catch-spring I53 (Figure 14) ?xed on the
chute I08.
In the case of a box 2 being in the chute I08
in an irregular position which can be caused also
25 by an irregular position of the boxes in the guide
H5, II‘! exerting a counter-pressure against the
pile of boxes, the irregularly positioned box ex
articles leaving the conveyor belts in a direction
toward the horizontal plane occupied by’ said
.2. In a printing apparatus for printing box
movable‘synchronously in the same direction for 10
carrying’ between them the box shaped articles
cally upwardly and then in a curved path to a
printing upon opposite sides of the boxes as the
belts move the same upwardly.
,
,
3. In a printing apparatus for printing box
shaped‘articles, spaced parallel conveyor belts
carrying between them the box shaped articles
to be stamped, means for driving said belts, means *
including a reciprocating pusher for feeding said
of the spring I53, the flap turns down in the
guiding opposite substantially parallel portions
the circuit of the source I48 of the electric cur
rent will be closed and a visible or audible signal
will be given. In the drawings an incandescent
The
?ashing up of this lamp indicates to the attend
ant that something is out of order and that the
apparatus is to be stopped.
35 lamp I54 is represented as an example.
The described alarm device can also be used
4.0 in a manner known per se for the automatic
stopping of the apparatus or to give a signal.
The constructional forms of the apparatus de
scribed as examples are adapted for printing the
narrow sides of boxes, that is the usual friction
45 surfaces of match boxes which, in this Way, are
provided with an e?ective advertisement. But
the apparatus .may 'be built within the limits
of the invention so that it is adapted for printing
of the broad sides of the boxes, printing on them
50 for example advertisements or marks. By means
of this apparatus after the necessary construc
tional alterations, it is also possible, to provide
box-like objects, that is, flat match packages with
'20
movable synchronously in the same direction for
articles one by one between said conveyor belts,
means for reciprocating said pusher, means for
and the contact I45, I52 will be closed.’ Thereby
15
substantially horizontal plane, and printing roll
ers arranged opposite the edges of the belts for
erts a pressure on the ?ap I43 against the effect
30 position represented in Figure 13 by dotted lines
55
tal plane, printing rollers‘ arranged opposite the
especially their correct position in the chute I08
of the belts ?rst vertically upwardly‘and then in 30
‘
a curved path to a substantially horizontal plane,
and printing rollers arranged opposite the edges
of the belts for printing upon opposite sides of
the boxes as the belts move the same upwardly.
4. In a printing apparatus for printing box 35
'
shaped articles, spaced parallel conveyor belts
movable synchronously in the same direction for
carrying between them the box shaped articles
to- be stamped, means for driving said belts, means
for guiding opposite substantially parallel por
tions of the belts ?rst vertically upwardly and
then in a curved path to a substantially hori
zontal plane, printing rollers arranged opposite
the edges of the belts for printing upon opposite
sides'of the box shaped articles as the belts move 45
the same upwardly, and a vertical pitfall adapted
to receive articles moving along said horizontal
plane for stacking said articles in substantially
?at condition.
'
_
5. In a printing apparatus for printing box
shaped articles, spaced parallel conveyor belts 50
movable synchronously in the same direction for
printing on their friction surfaces or on other
carrying between them the box shaped articles
to be stamped, means for driving said belts,
places.
means for guiding opposite substantially parallel _
In theappara'tus described the rail or channel
portions of the belts ?rst vertically upwardly
I preferably is joined closely to the drying chan
nel of the machine for producing match boxes,
whereas the ready printed boxes are conveyed
and then in a curved path to a substantially
60 from the channel or rail 30 to the device for pack
ing the
adapted
duction
without
boxes. Also, the printing device is
to be inserted in apparatus for the pro
of match packages already existing,
any essential alterationof the existing
65 parts.
What I claim is:
1. In a printing apparatus for printing box
shaped articles, spaced parallel conveyor belts
movable synchronously in the same direction for
70 carrying between them the box shaped articles
to be stamped, means for feeding box-shaped
articles to said belts, means for driving said belts,
means for guiding opposite substantially parallel
portions of the belts ?rst vertically upwardly and
75 then in a curved path-to a substantiallyrhorizon
horizontal plane, whereby the box shaped articles
will be carried first in upright condition and then
in a substantially flat condition along said hori 60
zontal plane, printing rollers arranged opposite
the edges ofthe- belts for printing upon oppo
site sides of said box shaped articles as the
belts move the same upwardly, a vertical pitfall
adapted to receive the articles moving along said 65
horizontal plane for stacking said articles in sub
stantially ?at condition, and means for feeding
said articles from the delivery end of said belts
into said pitfall one by one while maintaining said
articles in substantially ?at condition.
70
6. In a printing apparatus for printing box
shaped articles, spaced parallel conveyor belts
movable synchronously in the same direction for
carrying between them the box shaped articles
to be stamped, means for driving said belts, means 75
2,124,376
for guiding opposite substantially parallel por
tions of the belts ?rst vertically upwardly and
then in a curved path to a substantially horizon
tal plane, whereby the box shaped articles will be
carried ?rst in upright condition and then in a
substantially flat condition along said horizontal
plane, printing rollers arranged opposite the edges
of the belts for printing upon opposite sides of the
5
box shaped articles as the belts move the same
upwardly, a chute for receiving the articles mov
ing along said horizontal plane, and guiding
means for said articles detachably connected to
said chute for guiding said articles away from 5
said chute.
_
JOSEF RONA.
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