close

Вход

Забыли?

вход по аккаунту

?

код для вставки
_ Jan. 14, 1947.
c. D. KNOWLLTON ETAL'
2,414,109
METHOD OF AND MACHINE FOR- MAKING BLAN'KS '
Original Filed March 26, 1942
223
,0 ‘
s She-ets-Sheet _1
223
152
Jan; 14, 1947'
c. D. KNOWLTON ET AL
2,414,109
> METHOD OF AND MACHINE FOR MAKING‘ vBLANKS
Original‘ Filed March 26, 1942
"s Sheets-Sheet 2
2/0
Gear 'eEGDc/r'ke '
5
y
Jan- 14, 1947
C. D. KNOWLTON ETAL_
2,414,109
METHOD OF AND MACHINE FOR MAKING BLQNKS ‘ '
Original Filed March 26, 1942
(1
ba
3 Sheets-Sheet 5
Patentedv Jan. 14, 1947
2,414,109
UNITED STATES PATENT OFFICE
‘2,414,109
METHOD OF AND “MACHINE FOR MATKING
.BLANKS
Cutler I). Knowlton, Rockport, and George F. 0.
Burke, Fairhaven, Mass, assignors ‘to Hoague~
Spragne Corporation, Lynn, Mass, a corpora
tion of Massachusetts
1
Original application March 26, 1942, ‘Serial No.
436,362. Divided and this applicationvDecem
her 4, 1943, Serial No. 512,856
13 Claims. (01. 93--‘58.4)
This application relates to the manufacture of
box blanks such, for example, as that illustrated
in United States Letters Patent No. 1,811,135,
the inner face of the blank to form the edges of
the end-wings with the cover paper extending
thereover to the inner face of the blank. It will
of course be obvious that this method of forming
the slots is applicable in those cases in which the
blank is not provided with cover paper. When
such a blank is treated, the outer surface of the
granted June 23, 1931, on an application ?led
in the name of C. D. Knowlton. Thevpresent ap
plication is a division of an application for Let
ters Patent of the United States, vSerial No.
436,362, ?led March 26, 1942, in our names.
In the manufacture of box blanks as disclosed
in the aforementioned application, webs of shell,
cover and lining material are ‘continuously com
bined to form a Web of (blank material from the
end of which discrete blanks are severed and
blank will extend over the edge, .thus eliminating
the raw edge ‘that would be formed 'by‘the con
10
ventional slotting methods.
The above and other features of the invention,
including various novel details of construction
andcombinations of parts, will now'be morepar
fed step by step past a plurality of forming sta
tions at each of which an operation is performed 15 ticularly described with reference to the accom
panying drawings, and pointed out in the claims.
toward the completion of a box blank.
‘
In the drawings,
ent application is concerned with that station
at which slots are formed in theblank to sep
arate the end-wings and the corner-laps and
vention may be carried out;
the outer edges of the end-wings are cut awayto
accommodate the thickness ‘of the material where
the end-‘wing extensions are folded over the cor
nismslfor forming the slotbetween a cornerelap
‘
An object of the present invention ‘relates to 25
_ the provision of an improved mechanism for
performing the above operations. To this end,
four sets of knives are provided for forming the
slots-and the cutaway portions at the outer edges
of the end-wings in a single operation.
To ac
commodate blanks of various sizes, provision is
made for adjusting the knives relatively to one
another. As illustrated herein, the sets of knives
.
"Fig. 42 'isa section on the line Ila-II of Fig. ;l,
on .a‘larger .scale than Fig. 1;
"Fig.3 ‘is an exploded ‘view of .oneof the mecha
her-‘laps during the setting up of the blank to
box form.
V
Fig. l1=~is an end elevation, partly in section,;of
one form oiapparatus by which the presentin
and an end-wing;
‘
:"Fig. 4 is a .view,»partl-y in section, of .oneof the
sets of work engaging members;
“Fig. v5 is .a ‘plan View of .a blank ‘as it appears
after ‘beingsevered from a compound web .of sheet
material;
"Fig. :6 is a plan view ofthe ‘blank'after it has
been operated upon by the present apparatus;
'Fig. "7 is a perspective view on a greatly en.’
larged. scale'indicating howlthe cover paper‘hides
are arranged in pairs, each pair being adjustable
the. edge ofethelend-wwingrwhenthe blank is oper
as a unit toward and away from the other pair,
and the sets of each pair are adjustable simul to U! ated upon-by the mechanism of Figs. 3 and 4; and
Fig. ‘8:is a perspective view of a portion pfa
taneously toward and away from each other.
box illustrating the .appearance of ‘the covered
Provision is also made for adjusting the knives
edgeof‘t-he end-wing in the completed box.
of each set toward and away from each other.
@ne form of ‘blank {upon which ‘,the machine
Another object of ‘the invention relates to the 40 illustrated
herein is.designedito operate .is shown
provision of improved means for forming the
at a in Fig. 5 and comprises a layer of.shel1=rna
slots between the Mend-wings and corner-laps in
terial (b; a liner.c,.and a-layer of coverpaper 11.
a manner to providea ?nished appearance for
~ hec'over paper-maybe folded around theredges
the edges of the end-wings which are visible in
the completed box, and to the method by which 45 of the ‘blank ate to provide a ?nished appear
ance. 'The‘iblankjisoperated uponzbyithe present
this is accomplished. In the attainment of this
object the edges of the end-wings along the slots
machine to vform/slots If which .separate the end
portions of the end-wings inwardly when the
blank is severed‘ to form theinner edges of the
corner-laps, after which the inwardly ‘projecting
portions ‘are-severed in-substantially the plane of
nerelaps during-the settingv up of the='blanl<s~to
boxlform. ‘Side-wings‘k extend-between b11960!‘
wings :g‘ from; thecOrner-laps
"The outer. edges
separating them from the corner-laps are so
'of the corner-‘laps are also cutiaway at?‘ to .ac
treated that the cover paper extends over the
edges. This is effected in the illustrated embodi 50 commodate .the thickness of the material where
the end-wing ‘ extensions are ‘ folded ‘ over the (cor
ment of the invention by turning the marginal ner-laps
After the “ blank isFthus‘ operated
upon, “it passes successively through other sta
55 tions as illustrated in the parent application tre~
2,414,109
3
ferred to above to complete the formation of the
box blank.
The machine is built on a frame which com
prises supporting bars IE) extending lengthwise
of the machine and supported on the ?oor. Ex
tending upwardly from the bars Iii are posts
I2 to the upper ends of which are fastened rails ~
I4 which extend lengthwise of vthe machine. The
around the edge of a knife ‘I2 by the curved rear
portion ‘I4 of the knife 68. The knife ‘I2 is spaced
sufficiently from the knife 68 at this time so that
there is no cutting action between these knives.
After the knife 68 has moved downwardly to the
position illustrated, the knife ‘I2 moves in a sub
stantially horizontal plane to trim off the down
wardly projecting portion of the blank in the
plane of the inner face of the blank, thus giving
posts I2 are connected by a cross bar It and the
the appearance shown in Fig. '7. It will be noted
10
rails I4 are interconnected by one or more cross
that the cover paper 01 provides the end-wing g
bars (not shown) to provide a rigid frame work.
with a ?nished edge along the slot 1‘. Thus, when
The blanks are fed through the v‘machine with
the box is assembled, this ?nished edge t will ap
the folded edges 6 extending normal to the direc
pear as indicated in Fig. 8 so that the edge of the
tion of feed by a pair of endless belts it which
15 layer of shell material is not visible in the com
engage opposite sides of the blank and which feed
the blank into engagement withra pair of stops
29 mounted on shafts 22 for movement from the
positions illustrated in Fig. 1, downwardly into
pleted box.
The mechanisms for operating on the blank at
this station are mounted on a pair of carriages ‘I6
(Figs. 1 and 2) mounted on the rails I4 for ad
the path of movement of the blank. With the
justment lengthwise of the machine. For effect
forward motion of the blank thus arrested the 20 ing this adjustment racks ‘I3 are secured to the
blank is operated upon‘ as will be described,
underside of each carriage near the ends. These
after which the'stops are returned to the posi
racks are engageable with gears 80 mounted on
tions illustrated and the blank resumes its for
shafts 82 which are supported by bearings 84 se
ward movement through the machine. In order
cured to the undersides of the rails I4. Each of
to accommodate blanks of dierent sizes the stops
the shafts 82 has on its outer end a member 86
2c are carried by slides 24 which are mounted for
(Fig. 1) arranged to receive a crank whereby each
lateral movements on a rack 26 extending cross
shaft may be individually rotated to adjust its
wise of the machine. This rack is secured to the
associated carriage lengthwise of the machine.
upper ends of posts 28, the lower ends of which
The carriages are locked in their adjusted posi
30
are secured to the rails I4. Pinions 30 carried by
tions by gibs 88 secured to the rails by screws 90.
shafts 32 supported in the slides 24 engage teeth
To each of the carriages is secured a pair of
in the upper surface of the rack 'bar 26 to effect
gibs 92 (Fig. 2) forming between them a slide
lateral movement of the slides 24 and the stops
way for a pair of slides 94 movable lengthwise of
2!! carried thereby upon turning the shafts 32.
r the carriages or transversely of the machine. The
Prior to operating on the blank after it has
slides on each carriage are mounted for similar
come to rest against the stops 20, the blank is
adjustment toward and away from each other
properly centralized in the machine by a pair of
by a screw 96 having right and left hand threaded
joggers 34 having ends provided with notches for
engagement with the opposite edges of the blanks.
portions passing through threaded sleeves 98
mounted in blocks I00 (Fig. 2) secured to a side
The joggers are adjustably mounted in the upper 40 of each slide. These sleeves provide individual
ends of arms 36, the lower ends of which-are se
adjustment of the slides relatively to each other
cured to slides 38 movable transversely of the
and are locked in the desired positions of adjust
machine on slideways 40 formed along the up
ment by set screws I32 engaging grooves in the
per sides of cross bars 42 suspended by hangers “ sleeves. Carried by each of the slides 94 is a bed
44 from the rails I4. The slides 38 are provided
I04 upon each of which is mounted a pair of
wth rack bars 46 engageable with pinions 48
shear blocks 66 and ‘I0 (Fig. 2). The inner por
which are operated at a predetermined time to
tion of each bed is secured to its slide by a pair
move the joggers toward each other to centralize
of screws I65 threaded into a rod I08. These
the blank and then to retract the joggers while
rods are journaled in spaced arms projecting
50
the blank is being operated upon. The pinions
from the inner portions of each slide as shown
48 are operated by a gear 50 mounted on a shaft
more clearly in Fig. 2. Each pair of screws I08
52 and connected by an arm 54, a link 56, a lever
passes through a bar II!) which engages the up
58, and a cam roll (not shown) to a cam 60
mounted on a continuously rotating drive shaft
62 whereupon the gear 50 is oscillated to operate
the joggers. Provision is made for adjusting the
paths of movement of the joggers thereby to ac
commodate blanks of different sizes. For a more
per rearward surface of a bed I84. The screws
pass through recesses in the end of the bed as
shown in Fig. 2 so that, upon loosening the screws
slightly, the bar Ill) and the rod I08 may be
swung as a unit to free the rearward portion of
the bed. Tongue and groove portions II2 be
tween the slide and bed facilitate the proper po
complete description of the mechanisms thus far
described, attention is directed to the parent 60 sitioning of the bed on its slide. Other secur
ing means (not shown) may be provided between
application.
The machine is provided with four sets of cut
the outer portions of the slides and beds more
ters, one set operating at each corner of the blank
?rmly to secure them together.
to form the slots )‘ separating the end-wings and
Secured to the outer portions of the beds I94
the corner-laps and to cut away the ‘corner-laps 65 and extending upwardly therefrom are support
at 7'. The knives by which the slots and recesses
ing frames I I4 having overhanging arm portions
are formed in the upper left-hand corner‘ of the
IIB (Fig. 1) for supporting the knives 64 and 68.
blank shown in Fig. 6 are illustrated in Fig. 4.
The lower portions of the supporting frames
The recess 7‘ in the blank is formed by a knife 64
have dovetail grooves II8 with which ocooperate
movable downwardly past a cooperating shear 70 the wedge heads I20 of bolts I22 (Fig. 3) which
block 66 to the position illustrated. A second
pass through blocks I24 and receive nuts I26 for
knife 68 moves downwardly with the knife 64 and
rigidly securing theblocks to the frames H4 and
cooperates with a shear block ‘ID to cut the blank
the shear blocks 66 to the blocks I24. The blocks
along the line s (Fig. '7). The portion of the end
I24 may be adjusted along the beds by reason
75
wing adjacent to this cut is turned down at t
2,414,109
of the dovetail connection provided by the
of the gibs (Fig. 2) is backed up by screws I ‘I5
grooves H8 and the heads I20 of the bolts and
which permits adjustment of the gib toward the
by reason also of the fact that the other ends
other gib to take up for wear, The Slides are
of the blocks I24 are slidably secured to the bed
connected to vertically movable cross-girts I80
by bolts I23 passing through the blocks I24 and
which are connected at their oposite ends to
nuts I36 received by a T-slot in the bed (Fig. 1).
cross-heads I82 (Fig. 1) which are in turn se
Heads £34 of the bolts IZ'B (Fig. 3) hold each
cured to the upper ends of vertically movable
shear block 66 against the upper surface of its
rods I84, These rods pass through bearings I86
supporting block I ‘24. The supporting block has
secured to the side rails I 4 and through bearings
a sloping surface I36 for directing the scrap from 10 I88 secured to the supporting bars Iii. The rods
the blocks. A Conveyor belt (not shown) may
are reciprocated by the shafts 62 which carry
be provided at the bottom of the machine for
eccentrics I 9B connected by straps I92 and pivot
carrying material trimmed from the blocks away
pins I94 to clamps I96 secured to the rods. The
from the machine. 011 the front of the supportknife-supporting slides are connected to the
ing blocks I24 toward the entrance end of the 15 ‘cross-girts as follows. Threaded through the
machine are adlllstably secured guide plates
upper portions of the slides are sleeves I98 pro
I38 arranged for engagement by the forward
edges of the blanks to insure that the blanks will
ride smoothly over the blacks.
viding in their lower ends abutments for springs
zed These springs act against ?anges 292 near
the upper ends of rods 204, to the bottoms of
The shear blocks 10 are carried by supporting 20 which are threaded nuts acting on the bottoms of
frames Ills which are mounted on the beds I04
the bushings to prevent downward movement of
for adjustment relatively to the shear blocks 6b
the bushings on the rods. The upper ends of the
to vary the distance between the slots f and the
rods are provided ‘with heads 2e‘! clamped be
ClltaWay portions 9' 0f the blank- The frames Mil
tween bars 206 secured to the under sides of the
are adjustably seemed t0 the beds "34 by bolts 25 cross-girts and extending therebetween and gilbs
I35 and ‘31 similar to the bolts I22 and '28.
ZQQgecuredCto the bars_ The bars 206 are se_
The knives 72 are supported in the frame M9 by
cured to'the cross/girts for adjustment by clamp
roekable members “52 having Stud shafts M5
ing screws 2H] passing through bars 2I2 resting
journaled in bearings :46 mounted in arms .543
on the upper surfaces of the cross-girts. These
0f the Supporting frame Mt]. The knives 72 are 30 clamping screws are loosened to permit the slides
normally maintained in their retracted posiv94 suppgl‘tjng the mechanisms for operating on
tions, shown in Fig- 4, by springs I59 acting 108*
the blanks to be adjusted transversely of the
tween arms I52 on the rockable members Hi2 and
machine To permit the lengthwise adjustment
recesses I 54 in the frames I45. The positions
of the parts with the carriages ‘I6, the gibs 208
to which themembers I42 are moved by the 35 may be loosened so that the upper ends of the
springs are hmited by set screws I55 actlng
rods'zllc may slide relatively to the cross bars
against stops I 58 secured to the under sides of
Auxiliary clamping screws 299 (Fig. 2)
one of the arms I48 of the frames hit. Rolls I59
threaded through the arms II6 are provided for
are journaled on pins I62 in the arms I138 and
clamping- the Slides [53 against downward move
are ehgaged by the back Sides of Wedges '54 as 4.0 ment in the frames II 4 whenever desired. This
these 11love downwardly ahd support the Wedges
may be done whenever the gibs 208 are loosened
against lateral thrust. These Wedges act on
to permit this lengthwise adjustment of the parts.
goils
k561i clazallried
bsy the?arniis
‘I52 tic2 otsciilate
itlhe8
- m e
4‘ Carr lhg
e lllves
0 T1111
thus reliezving
the gibs of the weight of the slides.
I
(Fig. 2) act on the heads of the
Springs
downwardlyr extending portions t of the blank .15 screws to prevent their accidental turning. When
(Flg- 4) alter the Operatlon 0f the khlves 54
and 63
_
n
_
_
_
mgx‘gealléhlllggs setmtamggbg alie changed ba‘rll’erlilchlly
l
S
e
->
‘lee.
ah
-
e
nlves
the cross-girts are moved downwardly during the
operation of the machine, they act through the
springs 2053 to move the knives and strippers
downwardly to a position limited by the engage
are mounted for adjustment relatively to each 50 ment of the 1ewer ends of Stop screws 2“ with
ilther llDQh séllilllijortllhg platé; 1W earl‘tled gym?
oWer ends 0
e s 1 68-
e OPPOSI 6 '51 e5 0
the supporting‘ plates aredovetailed as ‘shown
1n _F1e- 1._ Each of the knives, as shown In Fle-
stops ‘M6 in the upper surfaces of the supporting
frames I I4.
Upon further downward movement
' of the cross-girts the springs 200 will compress,
thus permitting the wedges I64 to move further
gléoiélgiigtggfggg?glé?g firigmtiaecl?egrgg 55 non
gownwairggytgs will he1 dlescritbred, totta'ctuate the
S the
e: projecting
of which are elongated to underlie
ears 0:11I til;roug
kniiges.a faggoé
lt‘lqlemioltslizit?gds
a
in
.e
er
v-
upwar .y
nives
,'
us compe mg _
e s 0
ing opera
The wedges I?! are2 aéijusltably
clamped to the
, w ich are in urn se
lower ends of sides
ing an. inclined surface arranged to engage the 60 cured for vertical adjustments by bolt-and-slot
dovetailed portion of the plate I'm, whereby the
Connections 229 (Fig, 2) marine 222 depending
Opposite ends of the knives may be clamped in '
from brackets 224. These brackets are connected
the desired positions on the plates. Similarly
to the cI'osS-gjrts lag between bars 225 and
supported by the plates I'iil are strippers I'EEi, the
gibs 2g3_ Clamping screws 230 (Fig_ 1) passing
work engaging portions of which may be formed 6, through bars 223 on the upper surfaces of the
OI" Sponge rubber arranged to Clamp the blank on o cross-girts adjustably‘ secure the bars‘ 226 to the
the top surfaces of the Shea!‘ blocks 79 1119011
under sides of the cross-girts. Accurate adjust
downward movement of the knives The stripment of the vertical positions of the Wedge carry
pers normally extend downwardly below the
ing slides may be effected by screws 232 thread
knives and hold the blanks in position during 70 ed into the brackets 224 and engaging the tops
the return upward movement of the knives until
of the slides 2I8. Springs 234 act between the
they have cleared the blanks.
slides and pins projecting from the arms 222
The slides I68 are mounted for verticalm0ve~
to maintain contact of the slides with the heads
ment between gibs I78 secured to the overhangof the adjusting screws when the slides are ad
ing arms H6 of the supporting frames II4. One 75 J'usted.
‘2,414,109
From the above it will be seen that the knives
are arranged in four sets, one for operating upon
each corner of the blank, the sets of knives being
8
a single adjusting means for moving said sets of
knives as a unit in a direction normal to said ?rst
on the leading portion of the blank and the other
direction of movement, and means mounting the
knives of each set for adjustment relatively to
each other.
pair operating on the trailing portion. The pairs
end-wings, side-wings and corner-laps, means for
in turn arranged in pairs, one pair operating
of sets are adjusted toward and away from each
other by rotation of the shafts 82 which act
through the pinions 80 and the racks 18 to ‘move
2. In a machine for making a box blank having
operating on each corner of the blank, said oper
ating means being arranged in pairs, each of said
operating means including means for trimming
the carriages ‘I6 along the supporting rails M. In 10 the outer edge of a corner-lap and means for
order to permit this adjustment the gibs 88, by
forming a slot between the corner-lap and the ad
which the carriages are locked to the rails, are
jacent end-wing, single adjusting means for each
?rst loosened and the gibs 208 and 228 associ
pair of operating means for moving them simul
ated with the supporting bars 206 and 226, re
taneously toward or away from each other, single
spectively, are also loosened. By means of this
adjusting means for each pair of operating means
adjustment blanks for forming boxes. of dif
for moving the pair as a unit toward or away
ferent widths may be operated upon by the ma
from the other pair of operating means, and
chine. The sets of knives of each pair are also
means mounting the trimming means of each or
adjustable toward and away from each other to
the operating means for adjustment relatively to
accommodate blanks of different lengths by
each other.
loosening the screws 2H) and 230 and rotating
3. In a machine for operating upon a box blank,
the adjusting screws 66. This moves the slides
means for forming a slot in the blank comprising
at lengthwise of the carriages 92, these slides
means ‘for severing the blank along a line and
supporting the beds I04 and the upwardly ex
bending an edge of the severed portion inwardly,
tending knife supporting arms H4. After the 25 and means engageable with opposite sides of the
proper adjustment has been effected, the screws
inwardly projecting portion of the blank for
Ziil and 23% are tightened to lock the sets of
severing said portion in substantially the plane
knives in their adjusted positions. For adjust
of the inner face of the blank.
ing the knives of each set relatively to each other
4. In a machine for operating upon abox blank,
the bolts M2 by which the knives are clamped
means for forming a slot in the blank compris
to the supporting plates ‘I’!!! are loosened, thus
ing means for severing the blank upon a line and
permitting the knives to be moved along the
bending an edge of the severed portion inwardly,
plate into the desired positions of adjustment.
and means including said ?rst-named means for
In the operation of the machine, the blanks are
severing the inwardly projecting portion of the
fed by the belts l8 into engagement with the 35 blank in substantially the plane of the inner face
stops 2!! into position to be operated upon simul
of the blank.
taneously by the four sets of knives. After the
5. In a machine for operating upon a box blank,
blank comes to rest against the stops, the vertical
a shearing member for forming a cut in the
rods use are moved downwardly, whereupon the
blank, said member having a work-engaging face
cross-girts I83 carried thereby move the slides 40 arranged to bend the blank inwardly along the
S88 and 2 l3 carrying the knives and the wedges,
line of cut, and means cooperating with a side
respectively, downwardly toward the blank. The
of said shearing member for severing the inwardly
knives 6d and 15 move into the positions shown
projecting portion of the blank in substantially
in Fig. 4, the knives 64 forming the cutaway por
the plane of the inner face of the blank.
tions 3? in the outer edges of the corner-laps and
6. In a machine for operating upon a box blank,
the knives 68 forming the slits s as illustrated in
Fig. '7. At the same time, the surfaces ‘[4 of the
knives {58 turn the margins t of the end-wings g
a shearing member for forming a cut. in the
blank, said member having a work-engaging face
arranged to bend the blank inwardly along the
line of cut, and means operated in response to
movement of said shearing member for severing
the inwardly projecting portion of the blank
downwardly around the edges of the knives ‘12.
This action of the knives on the blank occurs be- .
fore the cross-girts I80 have completed their
downward movement but further movement of
zbtgainst the adjacent side of said shearing mem
the knives is prevented by engagement of the stop
er.
screws ‘2. i 1i with the stops 2 l 6. Further downward
‘I. In a machine for making a blank having
movement of the cross-girts is permitted by com
pression of the springs 290 associated with the
knife slides and the wedges I64 continue their
downward movement acting through the rolls N56
to operate the knives 12. These knives cooperate
end-wings, side-wings and corner-laps projecting
from the side-wings, said blank including a sheet
of shell material to the outer face of which has
been applied a sheet of cover material, a verti
with the surfaces ‘M of the knives 68 to trim the
downwardly projecting portions ‘t of the blank
in the plane of its lower surface, thereby to form
the edges of the end-wings as shown in Fig. '7.
Having thus described our invention, what we
claim as new and desire to secure by Letters Pat
65
cally movable member for severing the inner edge
of the corner-lap and bending the adjacent edge
of the end-wing inwardly, a member movable in
a substantially horizontal plane for severing the
inwardly projecting portion of the end-wing, and
means for sequentially operating said members.
8. In a machine for making a blank having
ent of the United States is:
‘
1. In a machine for making a box blank hav
end-wings, side-wings and corner-laps projecting
ing end-wings, side-wings and corner-laps, oppo
of shell material to the outer face of which has
sitely disposed sets of knives for operating on op
been applied a sheet of cover material, a verti
lap and a knife for forming a slot between the
of the end-wing inwardly, another member mov
able in a substantially horizontal plane for sever
from the side-wings, said blank including a sheet
posite sides of the \blank, each set comprising 70 cally movable member for severing the inner edge
of the corner-lap and bending the adjacent edge
a knife for trimming the outer edge of a corner
corner-lap and the adjacent end-wing, a single
adjusting means for moving said sets of knives
> simultaneously toward and away from each other, 75
ing the inwardly projecting portion of the end—
9,414,169 .
9
wing, and means movable with said vertically
movable member for operating said other member
after the edge of the end-wing has been bent in
wardly.
9. In a machine for making a blank having
end-wings, side-wings and corner-laps project
ing from the side-Wings, said blank including a
sheet of shell material to the outer face of which
has been applied a sheet of cover material, a
vertically movable member for severing the inner
vedge of the corner-lap and bending the adjacent
edge of the end-wing inwardly, a member mov
able in a substantially horizontal plane for sever
ing the inwardly projecting portion of the end
wing, means normally holding said last-named
member away from the path of movement of said
vertically movable member, a cam roll associated
with said horizontally movable member, and a
cam movable with said vertically movable mem
ber and cooperating with said cam roll for operat
10
11. Those steps in the method of making a
blank having end~wings, side-wings and corner
laps projecting from the side-wings, said blank
including a sheet of shell mater'ialto the outer
face of which has been applied a sheet of cover
material, which comprises severing the inner edge"
of the corner-lap and bending the adjacent edge
of the end-wing inwardly, and then severing the
inwardly projecting portion of the end-Wing from
one side in substantially the plane of the inner
face of the blank while the other side of said
portion is supported against lateral movement.
12. In a machine for operating on a box blank,
mechanism for forming ‘a slot bounded along one
side by a rounded edge comprisingv means for
severing the blank along a line to form the op
posite edge of the slot and for bending the sev
ered portion inwardly, and means'for severing
the inwardly bent portion along a ‘straight line
ing said horizontally movable member after the 20 in the plane of the inner face of the blank.
13. Those steps in the method of- forming box
edge of the end-wing has been bent inwardly.
blanks from a sheet of laminated material com
10. In a machine for making a blank having
posed of a sheet of shell material to the outer
face of which has been applied a sheet of cover
end-wings, side-wings and corner-laps projecting
from the side-wings, said blank including a sheet
of shell material to the outer face of which has
material which comprises forming a cut in the
(blank along a line to ‘form one‘eclge of a slot be~
been applied a sheet of cover material, a pair of
shearing members movable in a direction at right
angles to each other, means for moving one
shearing member to sever the inner edge of the
corner-lap and to [bend the associated edge‘ of 30
the end-Wing inwardly, and means formoving
the other shearing member to trim the project
ing portion of the end-wing against the adjacent
side of the shearing member ?rst moved.
‘
35
tween an end-wing and a corner-lap, bending the
material inwardly of the blank to form a rounded
edge along the opposite side of the slot and sever
ing the inwardly projecting portion in the plane
of the inner face of the blank whereby the cover
paper extends over the rounded edge along the
opposite side of the slot.
CUTLER D. KNO-WLTON.
GEORGE F. C. BURKE.
Certi?cate of Correction
Patent No. 2,414,109.
'
‘
__
January 14, 1947.
CUTLER D. KNOWLTON ET AL.
I
i
It is hereby certi?ed that errors appear in the printed speci?cation of the above
numbered patent requiring correction as follows: Column 3, line 25, for “dierent”
read di?erent; column 4, line 70, for “ocooperate” read cooperate; column 5, line 19,
for “blacks” read blocks; column 9, line 28, claim 10, for “a direction” read directions ,'
column 10, line 6, claim 11, for “comprises” read comprise; and that the said Letters
Patent should be read with these corrections therein that the same may conform to
the record of the case in the Patent Of?ce.
Signed and sealed this 7th day of October, A. D. 1947.
[m]
‘THOMAS F. MURPHY, "
Assistant ?ommi'ssz'oner of Patents.
Документ
Категория
Без категории
Просмотров
0
Размер файла
1 154 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа