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Патент USA US2406155

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Aug. '20, 1946.
-
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.
R, w. MESSENGER
2,406,155
MEANS AND METHOD FOR MAKING STRIP BLANKS FOR
' ' CANS FROM LONG AND ,WIDE METAL STOCK
Filed NDV. 8, 1944
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Aug. 20, 1946.
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MEANS AND METHOD FOR MAKING STRIP ‘BLAN'KS FOR -
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CANVS FROM LONG AND WIDE METAL~ STOCK
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MEANS AND METHOD FOR MAKING STRIP BLANKS FOR
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Aug. 20, 1946.
-
R. w. MESSENGER
' '
2,406,155
'MEANS AND METHOD ‘FOR MAKING STRIP BLANKS FOR
CANS FROM LONG AND WIDE METAL STOCK
Filed Nov. 8. 1944
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6 Sheets-Sheet 5 _
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INVENTOR.
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Au8- 20, 1946'
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R. w. MESSENGER
‘
2,406,155
MEANS AND HETHOD FOR MAKING‘ STRIP BLANKS FOR
CANS FROM LONG AND1 WIDE METAL STOCK
.
Filed Nov. '8, 1944
6 Sheets-Sheet '6'
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INVENTOR.
‘ATTORNEYS; .
2,406,155
Patented Aug. 20, 1946
‘UNITED ‘STATES PATENT OFFICE’
2,406,155
MEANS AND lVIETHOD FOR MAKING STRIP
BLANKS FOR CANS FROM LONG AND WIDE
METAL STOCK
Robert W. Messenger, Salisbury, Md.
Application November 8, 1944, Serial No. 562,546
15 Claims. (01. 164-47)
1
sequently avoid the expense of handling of a great
number of bales or boxes, in transportation, stor
age, unpacking and stacking. In other words,
body manufacture, from long and wide continu“
considering the amount of stock required for a
ous metal strip stock, such as is produced in large
coils by manufacturers of sheet and tin plate.
Cl given order, say 12 tons of stock, the cost of pro
tecting, handling etc., of such amount in coil
Heretofore it has been common practice among
form would be considerably less than the cost of
can manufacturers to obtain from producers of
protecting, handling. etc, of the same amount of
tin plate, rectangular sheets of such material, in
stock in rectangular sheet form.
bales or boxes, from which scroll edge strip blanks
Another object of the invention is to provide
are ?rst cut, and then these blanks fed to ma
machines and methods for making strip blanks
chines for stamping can ends therefrom. This
which conserve space in factories, in that the
has resulted in considerable waste of material,
material travels in a straight path from the'sta- ‘
as brought out in my Patent 2,335,292-granted
tion where the coil stock is located, to the sta
November_30, 1943. It has also been common
tion- where the strip blanks ?nd exit from the
practice to sever can body strip blanks from such
machine, thus permitting the machines and the
rectangular sheets of material. Both of these
zones where the methods are carried out, to be
procedures entailed some preliminary work, such
located closely adjacent one another in side by
as inspection for defects, and trimming an ex
side relation.
pensive amount of Waste from some of the edges
of the sheets before producing the scroll edge 20 A further object of the invention is to provide
means and methods whereby fewer employees
strip blanks, and the can body strip blanks. The
will be required than under present methods, to
packaging of the rectangular sheets has been
produce the same output in scroll edge strip
expensive, not only because of the materials used
blanks for can ends, and body strip blanks, and
in packaging, 'but also because of the care required
in protecting the edges of the sheets from dam-_ 25 whereby the latter will be more accurate in
This invention relates to means and methods
for making strip blanks for can end and can
dimensions'than those formerly produced.
age. rI‘here are also other factors that have con
Other objects and advantages of the invention
will appear in the following detailed description
of my‘ preferred means and methods, taken in
be mentioned expensive handling of the packages
in unloading, storing, opening them, and stack 30 connection with the accompanying drawings,
forming a part of this speci?cation, and in which
ing their contents. at themachines which manu
drawings:
facture the sheets into scroll edged strip blanks
Fig. 1 is a somewhat diagrammatic View partly
or straight edged strip body blanks under pres
in
elevation and partly in vertical section thru
ent methods.
The principal objects of the present invention ,7 means whereby scroll edge strip blanks may be
produced.
are to avoid as much as is practically possible,
Fig. 2 is a fragmentary view, partly in plan
the waste incident to use of the rectangular
and partly in horizontal section, showing the
sheets, by providing means and methods whereby
?rst preferred step in the method of producing
there are no recovery blanks in the production
the scroll edge strip blanks.‘
,
of the scroll edge strip blanks, and considerable
Figs. 3 and 4, are similar views showing the
trimming of edges is avoided, both‘ in the produc
preferred second and third steps respectively in
tion of scrollledge and body’ strip blanks; to re-,
the method.
7
'
duce the losses incident to throwing out that which
Fig. 5 is, a similar View showing the preferred
is generally called “waster sheets,” (those having,
fourth step in the method and which is repeated
for instance, defective plating of the surface, or
successively many times until the ICOll of long
holes) by only throwing out relatively small strip
and wide strip stock is used up, or until the de
blanks which may contain defects, in contradis
sired number of scroll edge strip blanks have been
tinction to throwing out large sheets; to permit
produced.
of the use of large coils of longand wide continu
Fig. 6 is a diagrammatic View showing the stock
ous metal strip stock, such as coils containing 50
and the products of the four steps above referred
many thousand lineal feet of strip stock, which
to.
may be ‘easily protected for transportation and
Fig. 7 is a View similar to Fig. l, but showing
storagein contradistinction to the elaborate bal
means for producing can body strip blanks'
ing or boxing now employed for the shipment'and
tributed to the ultimate cost of producing cans
from such rectangular sheets, among which may
protection. of the rectangular sheets; and, to sub
a
Fig, 8 is a fragmentary view, partly in plan,
2,406,155
3
and partly in horizontal section on the line 8-8
of Fig. 7, showing the ?rst preferred step in the‘
4
bers 44' spaced apart from each other a distance
equal to the width of the strip-blank produced
by the boxdie, as shown in Fig. 2; shearing
mechanism 45 arranged at the delivery end 41,
of the table and comprising upper blades or
method of producing the can body strip blanks.‘
Figs. 9, 10 and 11 are views similar to Fig. 8,
but showing the preferred second, third and
fourth steps, respectively, in this method.
Fig. 12 is aview similar to Fig. 8, showing the
punch members 48 and lower blades or die plates
49, the shearing mechanism acting crosswise of .
preferred ?fth step in the method which is’ re
.the, delivery end of the table and having the
peated successively many times until the coil of
cutting‘ edges spaced from the nearest ends of.
long and wide strip stock is used up, or until the .10. the box die punch members 44, a distance equal
desirednumber of can body strip blanks has'been. ' to the length of a strip blank, as shown in Fig.
produced.
2; a stop 5i preferably ?xed to the table at the
Fig. 13 is a diagrammatic View showing the.
end of e'a'ch‘boX die nearest the shearing mecha
stock and the products of the five steps above
1
nismll?, the functionof which will be subse
15 quently described; a sliding head 53 movable to
referredto.
_
Referring first 1 to the preferred means and
methods of producing scroll edge strip blanks,
in Fig. 1, is disclosed the preferred equipment
and arrangement of parts; in Figs. 2'to 5, in
clusive,,is disclosed the condition of the stock as 20
it is fed progressively withrespect to parts oi '
the machine; and, in Fig. 6 is disclosed a dia
grammatic representation‘ofthe stock and prod
uctsifrom the start to and'in(_:lu¢_;lingthestepv
ward and'from the table 40 and carrying the’
punchmembers lid and the upper blades or punch
members 43; a transverse conveyor 5/3 partly
accommodated in recess ‘4! ; a longitudinal con- -
veyor 55 at the delivery end ofthe table; major
adjustable, longitudinal guide 56 along the-lon
gitudinal margins of the table to engage the side
edges of the strip stock; and, minor adjustable
longitudinal guides 51 on thetable between the
which is repeated successively many times until 25 box dies 43 and the shearing mechanism lid.
The upper punch member '44 has longitudinal
the coil strip stock is. all used, orthe desired
number of scroll edge stripv blanks have been‘
produced.
scroll edges 60, and transverse scroll edges 6!
and 612, as shown in Fig. 2, while the die proper
45 has longitudinal scroll edges 63 for coopera
carried by an uncoiler i6; ?attening mechanism 30 tion with the scroll edges 80, and transverse scroll
ll‘ of any suitable character, such as that 'in- 1~ edges 65 and 65, for cooperation with the scroll
cluding an upper ?attening roll it and lower.
GI and $2, respectively.
‘
'
rolls it; drag mechanism 23, including upper
As shown in Fig. 1, the die proper 45 may be
In Fig. l is shown a coil ‘M of strip stock [5, ‘
and lower rolls 2! and 22 respectively, for draw- a
, accommodated in the upper portion of recess 4|,
1 ‘ing the stock 25 thru the ?attening mechanism, 35 so that products of the box die may ‘drop from
1 ‘and edge trimming mechanism 273 including up
the die proper upon the transverse conveyor 54
per and lower rotary knives 2d and 25, respec
' and ?nd its way'laterally of the machine.
tively, all mounted on a suitable pedestal Z6;
The conveyor 54 may be in the form of an
step-by'estep feed mechanism 21, for stock l5, on i endless belt 56 trained about pulleys '51, in the
' a suitable base 28 spaced from pedestal’ 26 to
usual manner, the pro-ducts of the box dies drop
provide a cavity 29 into which a loop as of the '
‘ simultaneously producing a great number of scroll ‘
ping upon the upper run 68 of the belt.
Each upper blade or punch member is has a
scroll edge 70 as shown in Figs. 1 and 2, and
; edge strip blanks from the stock l5, at each cycle
each lower blade or die plate 49 has a cooperat- '
stock 55 may be payed; and a machine SI, for
5 of movement of the ‘movable. machine parts.
The strip uncoiler i8, ?attening mechanism
ll, drag mechanism 23 and trimming mechanism
; 23 maybe of any suitable or approved type, the
i purpose of which is to condition thestock strip
45 ing scroll edge ‘Myths purpose of these scroll
edges being to shape the ends of the strip blanks
.
for economical production ofr'can ends therefrom,
; and to avoid that which is generally termed “re
covery pieces” when the scroll edge strip blanks
1. iii for fabrication in the machine 3 l.
50 are'cut from rectangular sheets according to the
Likewise the step-by-step mechanism 2? may
common practice. This applies. also to the trans
;. also be of any suitable, character and in the
verse scroll edges 6!, d2, 64 and ,65 of the box
1 example I have diagrammatically represented a
>1 magnetic feed, such as is disclosed in myco
I pending application for U. 8. Patent ?led Sep
tember 21, 1943, Serial Number 503,270. 'Broad
1 ‘ly it comprises an upper endless belt 33 trained
‘ about space pulleys 3d and a lower belt 35 trained
dies 43.
.
The conveyor 55 may be similar to conveyor
56 in that it comprises an endless belt 13, trained
' about pulleys in the usual way, one of which is
shown in Fig. 1 at ‘it. It is upon the upper run
75 of belt ‘l3 that products of the machine, at.
; about pulleys 36, the beltsv 33 and 35 carrying
the delivery end ll‘! of the table #6 engage and i
1 cooperating magnetic members 37 and 38, respec 60 are drawn from the shearing mechanism at, when
tively, which engage the strip stock l5 at the
severed from the stock. . ,,
3 upper and lower faces thereof, the strip stock
Refer now to operation of the, machine 3| and
‘ running between the lower runof belt 33 and
‘ the upper run of belt 35.
'
The machine 3! comprises an elongate ped
3 estal or table d9 disposed with its majorvaxis
‘ parallel to the path of travel of the strip. stock
l5 and preferably having a recess M opento its
l upper surface near the entry end 42 of the table;
a plurality of box dies. 43, for cutting scroll edge
1 strip blanks from the stock, and each including
an upper‘ punch member 413 and a die proper. 43%,
steps in the methods of producing scroll. edge
strip blanks ofv like lengths from the coil strip
65 stock, with the view of having only immaterial
waste when the’ strip stock is ?rst acted upon, at
its leading end and at its terminal end, it will. be
noted from Fig. 2 that the strip‘ stock I5, is ?rst
placed upon the dies proper 45, while the punch
'members 46 are raised, and to extend only par
. tially over the dies.
Upon lowering the punch
members 44, the leadingedgeof the stock has
producedtherein a plurality‘of stop. notchesl'll,
the box dies being arranged in side-by-side re
‘ lat-ion, transversally of the table, with their lon~
shown diagrammatically inrFig. 6, the small
1 gitudinal axes parallel and with the punch mem 75 pieces of Waste material '18 dropping into the re
2,406,155
5
'cess 4| and carried away by the conveybr 54.
The stop notches 71 each de?ne one end-of a
?rst series of parallel potential blanks, the
shearing mechanism 46 with respect to the box
dies 43.
»
»
It will be observed after severing the waste
material 18 and 82 from the leading end ‘of‘the
strip stock, the'scroll cut strip lengths are of a
shape to permit cutting can ends therefrom with
notches being spaced apart a distance substan
tially equal to the width of a second series of
potential blanks. Upon raising the punch mem
a minimum of waste, since the ends of the blank
bers 44, the strip stock may be advanced by the
will also be scroll cut.
mechanism 21 until the stop notches engage the
In the matter of producing scroll edge strip,
stops 5|. The stock is then in the position shown
in Fig. 3 and upon causing the punch members 10 blanks for subsequent cutting of can ends there
from, it may be said the strips may be of any
44 to descend, scroll edge strips are cut from the
practical length taking into consideration, ?rst, '
stock and drop upon the conveyor 54. The prod
the size of the can ends to be cut from the blanks
ucts of this second step are the strip blanks 19,
and, second, the factor of convenient handling
shown in Fig. 6. In other words they ‘constitute
the ?rst series of blanks cut from the stock in 15 of the strips by the workmen and the feeding
of them to the punching machine. In the exam
wardly of the notches TI. This leaves a plu
ple shown I have illustrated the scroll edge strip
rality of spaced parallel tongues 80, connected
of. a size having an area for eighteen potential
to the stockwhich are of greater length than
can ends, but it is to be understood that this is
the blank 19 as may be observed from Fig. 6.
Upon raising the punch 'members 44, the strip 20 merely by way of example, and that the strips
may be of a size for the production of a smaller,
‘stock may be again advanced until the main body
or a greater number of can ends. In fact the
portion of the strip stock at the roots of the
machine and methods contemplates the produc
tongues 8|] engage the stop 5|, thus placing the
tion of scroll edge strip blanks of a length much
excess portions of the tongues 86 beneath the
shearing mechanism 46, as shown in Fig. 4. Upon 25 greater than would be practical if produced-from
sheets instead of coiled stock.
causing the slidinghead 53 to descend, the punch
Referring now to the preferred means and
members 44 cooperating with the dies proper 45,
methods of producing can body strip lengths, in
will produce the second-series of strip blanks 8|
Fig, '7 is disclosed the preferred equipment and
shown in Fig. 6, which drop upon the conveyor
54, and simultaneously cut the excess waste mate 30 arrangement of parts; in Figs. 8 to 12, inclusive,
. is disclosed the condition of the stock as it is'fed
rial 82 from the ends of tongues 80. This opera
progressively with respect to parts of the ma
tion then leaves tongues 83 extending from the
chine;
and in Fig. 13 is disclosed a diagrammatic
main body portion of the stock, each tongue be
representation of the stock and the products
ing of a length equal to two potential strip blanks
from the start and including the step which is
35
as shown in Fig. 6.
Upon raising the punch members 44, the strip
repeated successively until the coil strip stock is
all used, ‘or. the desired number of can body. strip
stock may again be advanced until the main body
lengths have been produced.
_
‘
portion thereof at the roots of tongues 43 engage
In
Fig.
7
the
mechanism
in
advance
of
the
the stops 5|. This places uncut strip stock be
neath the punch members 44,’ and one-half the 40 machine for actually fabricating the strip stock
may be the same as that disclosed in Fig. 1, and
length of the tongues 83 to each side of the shear
hence requires no detailed description, the same
ing mechanism 4.6, as shown in Fig. 5. Upon
characters having been applied to designate sim
causing the punch members 44 to descend, a
ilar units-and characteristics thereof, however,
third series of strip blanks 84 will be cut from
the strip stock, and at the same time‘ a fourth 45 the machine 90 differs from machine 3| in many
respects.
series of strip blanks 85 will be cut from the
In the matter of producing can body strip
tongues 83, thus leaving the strip stock with
blanks, the dimensions of the blanks are ?xed
tongues 86 extending from the main body por
according to the size of the can ultimately to be
tion of the strip stock, as shown in Fig. 6. The
series of strip blanks 85 drop upon the conveyor 50 made therefrom. They‘ are seldomif ever of a
size as large as scroll edge strip blanks for pro
55 and are carried away at the delivery end of
ducing can ends. Therefore it is practical to
the table 40. It will be noted from Fig. 5 that
produce more ‘of the former at each stroke of the
prior to cutting strip blanks from the tongues,
punching and cutting head, considering available
the end portions of the tongues rest upon the
55 area that the machine may occupy and the power
available in most can making factories, than it is
tion, and in quickly carrying the strip blanks from
conveyor 55 which assist in the severing opera
the shearing mechanism 46.
The belt 13 may
to produce scroll edge strip blanks.
The machine 90 comprises an elongate pedes
tal or table 9i disposed with its major axis par
stock in a direction away from the delivery end 60 allel to the path of trave1 of the strip stock I5
and preferably has a recess 92 near the entry
of the table. It is preferred to have the upper
end of the machine, a recess 93 at the terminal
run 15 of belt 13 in a plane slightly lower than
end of the machine, and an intermediate recess
the plane of the table .40, so that the tongue ma
94, these recesses being open to the upper sur
.terial bends down slightly from the die plates
face of the table as shown in Fig. '7; a ?rst set
49. This facilitates severing of strip blanks from
of box dies 55 for cutting strip blanks from the
the tongues.
stock,
located near the entry end of the machine,
From this point on the fourth step is repeated
each box die comprising an upper punch member
a su?icient number of times to produce the num
96 and a die proper 91, the box dies being ar~
ber of strip blanks desired, or until the end of
the coil of strip, stock is reached. After the third 70 ranged in side-by-side relation, transversally of
the table, with their longitudinal axes parallel
step in the method, a great number of strip
and with the punch members 96 spaced apart
blanks may be produced at each stroke of the
from each other a distance equal to the width
sliding head 53. Accuracy as to dimensions of
of the strip blanks produced by the box. die, as
the? strip-blanks is accomplished by use of the
?xed stops 5| and the accurate positioning of the 75 shown in Fig. 8; a second set of box dies Hill, for
travel at a uniform speed so as to tend to draw
the free end portions of the tongues of the strip
2,406,155
7
v
'
a
7
also: cutting strip blanks from the stocks, the
second set being located. at an intermediate por-'
tion oi the table, and spaced from the ?rst set
95,‘ a distance equal to the combined lengths of
two strip blanks asashown in Fig. 8, the box dies
of setléiii each' comprising an'upper punch mem
ber'l'di "and a die proper Hi2,- the box dies of vthe
second set being axially aligned with the ?rst
set ,transversally of the table; a ?rst shearing
mechanism 6-55 located forwardly of said second
set of box dies EM, andfspaced therefrom a, dis-‘
tance equal to the length of a strip blank, the
shearing mechanism including an upper blade
id?'and, a lower blade I81; a secondfshearing
.mechanism 569 located forwardiy of said ?rst
shearing’mechanism and spaced therefrom a dis
tance equal to the length of a strip blank, the
second shearing mechanism including an upper
‘blade Hi‘; and a lower blade I I I; a stop' H2, pref-v
erably ?xed to the table at the end of the box,
dies of the second set 398, nearest the ?rst shear
ing mechanism IE5, the function of which stop
or \stops to be subsequently described; a sliding
head H3 novable toward and from the table
‘ SH and carrying the punch members 96 and IEH,v
and the blades IN; and I I6; transverse conveyors
H5, H5 and H5, in the recesses 92, 93 and 94, re
spectively, a longitudinal conveyor II"! at the
terminal end of the table; major adjustable
guides I is along the longitudinal margins of the‘
table to engage the side edges of the strip stock;
and minor adjustable guides I I9 on the table be- .
tween the second set of box dies I93 and the ?rst
shearing mechanism
I835. ~
,
.
In Figures 8 to 12, both inclusive, is shown the
progress of the strip stock during the preferred;
strip stock maybe advanced adistance equal to
the combined lengths of two strip blanks and
assume the position shown in Fig. 11 with the
material of the stripstock' I 5, between ‘the roots
of tongues I2‘! ‘against the stops H2, and with
the free ends oi‘ the tongues beneath the-upper
blades of the ?rst and second shearing mecha
nisms I35 and I65.
Upon causing the sliding
head II'3 to descend a .fOurth set of strip blanks
136 are cut by the punch members 96, a ?fth set
of strip blanks IIH, by the punch members IUI,
and a sixth set of strip blanks I33, by the ?rst
and second shearing mechanism, the second
shearing mechanism I 99 ‘also cutting from the
'free ends of the tongues ‘small waste pieces I33,
7 which slide off- the rounded end portion I34 at
the terminal end of the table. This then leaves
the strip stock with tongues I35 extendingthere
from, each‘of a‘ length equal to the combined
lengths of three strip blanks.
'
Finally upon again raising the sliding head
H3, the stock may be ‘advanced a distance equal
to the combined lengths of two strip blanks, and
assume the position shown in Fig. 12, with the
terminal ends of the tongues I35 resting upon
the conveyor II'I.
' ~
When the sliding head I I3 is caused to descend
a seventh set of strip blanks hill is produced
the punch members 95, and eighth set of‘ such
blanks MI is produced by the punch members
II“, a ninth set of such blanks I 42 is produced
by the ?rst shearing mechanism I95 and the
secondv shearing mechanism Hi9, and a tenth,
set of such blanks I43 being severed from the
tongues, by the second shearing mechanism I09,
are carried away by the conveyor Ill. Itis of
course understood that the seventh, eighth and
In Fig. 8 it is assumed that the sliding head
ninth sets of strip blanks are carried away by
{I3 has been raised. and‘ the strip stock moved
the conveyors I I4, H6, and :I I 5, respectively.
to extend partially over the dies proper Q1 of the ‘40
From this point on the ?fth step is repeated’
?rst set of box dies 95in readiness for the punch .
a number of'times, su?‘icient to produce the de
members 85 to descend. At the ?rst stroke of
sired number of strip blanksj'cr until all of the
the sliding head stop notches iZI, shown in vFig.
coil of strip stock is used.
‘
.
13 are produced and the waste pieces I22 drop
It is obvious from the foregoing description
.upon conveyor Md ‘and are‘carried away. The
that coil strip stock may be used in makinga
stop notches i2! de?ne the‘ leading ends of spaced,
great number of strip blanks at each stroke
longitudinal zones of the strip stock from which
of the sliding head of the machine and that the
vpotential strip blanks may be cut and the tabs
strip stock travels in the same vertical zone from
I23 at each side of the stop notches are at the v
coil I4 vto the place where it is fabricated, thus
terminals of other spaced Zones longitudinally of .50 permitting the machines for producing scroll
the strip stock from which strip blanks may be
edge strip blanks and/or can body strip blanks
cut. Upon raising the sliding head H3, the strip 7
to be arranged in side-by-side relation, and con“
stock may be advanced to the position shown in
serving much space in can making factories.
Fig; 9, a distance equal to the length of one, po
‘The manner in which the ?xed stops 5i and '
tential strip blank. Upon causing the sliding
II:2 accurately limit movement of the strip stock :
head IE3 to descend the'punch members 96 will
after each fabricating stroke of the sliding heads
cut from the stock a plurality of ?rst strip blanks
53 and 1 I3, respectively, is of much importai'ice
I24, shown in Fig. 13, which drop upon the con—
since after the preliminary steps of fabricating
veyor Iii and are carried laterally of the ma
the leading vend of the coil stock these stops are
chine. . Upon raising the sliding head H3, the ,~ brought into use to restrain forward movement
strip stock may be advanced a distance equal
of the strip, stock while the fabricating opera~
to thefcombined lengths of two strip blanks, and
tions take place. This avoids the necessity of '
assume the position shown in Fig. 10, where the
extreme accuracy‘ in the step-by-step feed mecha~
stop notches IZI engage the stops II 2. ‘Upon
nism, and where such is ofthe magnetic type,
causing. the sliding head H3 to descend, the
slight continued operation of thefeed mecha~
punch members 96 punch a'second set of strip - nism after the stops 5i and H2 function to
blanks vI25 from the strip stock which fall upon 1 arrest forward movement of the strip stock, will
conveyor H d,‘ and the punchmembers IBI of the ,
?ve steps shown diagrammatically in Fig. 13.
I
‘
,
,
,
1
1
‘
;
‘
, f second set of box dies'l?ii'punch a third set of ‘
I strip blanks I28, shown in Fig. 13 from the strip
1 stock just inwardly from the stop notches I2I,
leaving tongues I21, extending from the strip
not ‘be detrimental.
'
r
7
While not so important in connection with the
production of scroll edge strip blanks, it will be
noted that, in connection with can body strip
blanks production the blanks are produced with
stock and of a length slightly greater than the
the grain of the strip stock running longitudi
1combined lengths of two strip blanks.
,
nally thereof, something considered. verydesirr
1 ' Again, upon raising theslidins head M3, the 175 able as characterist'm 0;“ can body ‘blanks;
2,406,155
It is of course understood that the major‘ and
minor guides 56 and 51, and H8 and H9 func
tion to hold the strip stock and the tongues
produced thereon to the proper paths for ac
curacy. Any suitable “hold-down” devices, not
shown in the drawings, may be employed to keep
the strip stock from buckling.
1,0
ting a series of blanks from the tongues, until
the desired number of blanks have been pro
duced from the coil stock
'
'
3. Those steps in the method of producing strip
blanks of like length from coil strip stock with
the longitudinal axes of the blanks extending
longitudinally of the stock, which consists in
?rst, producing a plurality of spaced apart.
notches open to the leading edge of the stock,
The means and methods herein disclosed make
possible a very high production rate, in that a
large number of strip blanks may be cut from 10 each to de?ne one end of each of a series of ?rst
zones for potential blanks running longitudi
the coil strip stock per minute, and at the
nally of the stock, said notches being spaced apart
same time makes for great economy of stock over
by tabs each to de?ne one end of a second series
methods now in common use.
of zones for potential blanks, running longitudi
I claim:
nally of the stock; second, punching a ?rst trans
1. The steps in themethod of producing strip
blanks of like length from coil strip stock with , verse series of blanks from the stock body in said
?rst zones, 2, distance from the ends thereof
the longitudinal axes of the blanks extending
equal to the length of a potential blank; third,
longitudinally of the stock, consisting in produc
simultaneously punching a second transverse
ing a notch in the leading edge of the stock‘to
series of blanks from
?rst zones inwardly
20
de?ne one end of a ?rst potential blank; cut
of and next adjacent to said notches whereby a
ting said ?rst blank from the stock, inwardly
plurality of spaced tongues are provided in'- said
of and terminating at said notch, leaving a
second zones extending from the stock ‘and each
tongue connected to the stock of a length greater
of a length equal to the combined length of two
than the length of a second potential blank;
simultaneously cutting a third blank from the 25 potential blanks plus its respective tab,‘ and also
punching a third transverse series of blanks from
stock at the longitudinal zone thereof from which
said ?rst zones a distance from the spaces be
said ?rst blank was cut, and trimming off the
tween said tongues at the roots thereof equal to
~ leading end of said tongue so that the length of
the length of a potential blank; fourth, simul»
the tongue is equal to the length of said second
potential blank and the length of a fourth poten 30 taneously cutting said‘ tabs from said second
zones at the tongues, and a fourthv transverse
tial blank; simultaneously cutting said second
series of blanks from the free end portions of said
blank from the tongue and a ?fth blank from
tongues, a ?fth transverse ‘series ‘of blanks from
the stock at the longitudinal zone thereof from
said
?rst zones inwardly of and next adjacent to
which said ?rst and third blanks were cut, leav
ing a tongue connected to the stock of a length 35 the space between ‘the ‘roots of said tongues
whereby a, plurality of spaced tongues are pro
equal to the length of said fourth potential blank
and the length of a sixth potential blank; and
repeating steps similar to said last mentioned
vided in said’ second zones extending from the ,
at the same time cutting a blank from the tongue,
of said third transverse series of’ blanks; ?fth,
simultaneously cutting a seventh and an eighth
stock and each of a ‘length equal to three potential
blanks, and punching a sixth transverse series
step whereby a blank is simultaneously cut from
the stock at the longitudinal zone thereof from: 40 of blanks from said first zones a distance from
the holes produced in the stock by the punching
which said ?rst, third and ?fth blanks were cut,
until the desired number of blanks have been
produced from the coil stock.
2. Those steps in the method of producing strip
blanks of like length from coil strip stock with
the longitudinal axes of the blanks extending
longitudinally of the stock, consisting in produc
ing a plurality of notches open to the leading edge
of the stock, each to de?ne one end of a ?rst ‘
series of parallel potential blanks, said notches
being spaced apart a distance, substantially equal
transverse series of blanks from the ‘free end por~
tions of the tongues in said second zones, a ninth
transv'erseseries of blanks from said ?rst zones
inwardly of andnext adjacent to the space be
tween the roots of said tongues whereby a plu
rality of spaced tongues are provided in said sec
ond zones, extending from the stock and eachlof
a length equal to three potential blanks, and
punching a tenth transverse series of blanks from
said ?rst zones a distance from the holes pro
to the Width of a second series of potential
duced in ‘the stock by the punching of - said sixth.
blanks; cutting said ?rst series of blanks from
transverse series of blanks; andrepeating said
the stock inwardly of and terminating at said
' ?fth step in succeeding relationuntil'the desired
notches, leaving a plurality of spaced parallel
number of blanks have been produced.
, i i _ a
tongues connected to the stock, of a length greater
4. Those steps in the method of producing stri .
than the length of the second series of potential
blanks of like length from coilstrip stock with.
blanks; simultaneously cutting a third series of
blanks from the stock at the longitudinal Zones 60 the longitudinal axes of the blanks extending lon
gitudinally of the stock, which consists in fabri-- thereof from which said ?rst series of blanks
eating thestock to provide a plurality of parallel
were cut, and trimming off the leading ends of
tongues extending from the stock, each of a width .
said'tongues so that the length of each tongue is
vequal to a potential blank and of a‘length equal
equal to the combined length of two potential
blanks; simultaneously cutting said second series 1 ‘ ~ to the combined length of two potential blanks,
and said tongues spaced apart a distance equal
of blanks from the tongues and a fourth parallel
to the width of a potential blank, and elongate,
series of blanks from the stock at the longitudinal
side by side, holes in the stock each of a length
zones thereof from which said ?rst and third
and width equal to the length and width of a po
series of blanks were out, leaving parallel tongues
tential blank, said holes being located with their
connected to the stock each of a length equal to
the combined'length of two potential blanks; and
repeating steps similar to said last mentioned step
whereby a series of parallel blanks is cut from
major axes parallel and intersecting thefspaces
between the roots of said tongues and located a
distance inwardly of the stock equal to the length ’
of a potential'blank whereby the holes extend
the stock at the longitudinal zones from which
said ?rst series was out, at the same time cut 75 vlongitudinally in a first series of spaced zones,
2, 406, 155
1'1v
12
longitudinally of the stock, for potential blanks,
I
Width of a strip blank, whereby the stock may
saidtongues extend in a second series of
be acted upon, when at rest on the table, .to
produce a plurality of blanks at each stroke of
alternate spaced ‘zones, longitudinally of this
stock, for potential blanks; and then simultane~
the box die punch members, and leave tonguesat
tached to the stock'for other potential strip
tongues, punching blanks from said stock inisaid
blanks; a stop at one or more of the box dies
1 1”st zones, between the leading ends of said holes
against which the body portion of vthe stock at
and the space between the tongues and punching ‘
the root of adjacent tongues will engageaiter
blanks from said stock in said ?rst zones, a dis-. '
strip blanks have beenrcutvfrom the stock and
tance from the trailing endsof said first; men 10 the stock has been advanced to present uncut
ticned holes, equal to theulength of a potential
stock between the punch members and dies proper
ously _ cutting two'blanks from each‘ of said
blank;
'
'
‘
of the box dies; and shearing mechanism ar
'
5. In a machine for simultaneously producing ‘
ranged at the delivery end of the table vand acting ,
crosswise thereof upon the tongues left on- the
a great'number of strip blanks of like length from
‘
coil stock, the combination of an elongate table; 1 V;
‘ means for feeding the strip stock from" the coil
longitudinally over the table; a plurality of clone
, gate'box‘dies for cutting strip blanks, each in~
ends of the box die punch members, a distance
equal to the length of a strip blank.
‘ , eluding a punch member and a die proper, said‘
I_ apart from each other a distance equal to the
l width of a strip blank, whereby the stock may be
‘‘ acted upon, when at rest on the table, to pro-,
1 duce a plurality of blanks at each stroke of the
5 box die punch members, and leave tongues at
each stroke ofvv the punch member and located
with respectlto the path of travel of the stock
over the table, so that afterpunching each strip
blank therefrom,‘ there is left a tongue extend->
blanks; and shearing mechanism arranged at the ,
delivery end of the table 'and'acting crosswise
thereof upon thetongues left on the stock by the
operation of said box dies, said shearing mecha~
V ing'from the stock laterallyof the hole from which
; nism having its cutting 'edges spaced from the
said blank is punched, suii‘i'cient for another po~
‘ nearest ends of the box die punch members, a dis~
tential strip blank; and shearing mechanism at
I_ tance equal to the length of "a strip blank;
6. In a- machine for simultaneously producing
a great ‘number of strip blanks of ‘like‘length
‘ thedelivery end of the table in the path of travel
of said tongue and located a-distance from said
box‘die‘ equal to thelength of'a strip blankmfor
, from coil stock, the combination of an ‘elongate ‘
cutting strip blanks from the tongue of the stock.
1 table; means for feeding the strip stock from the
9.111 a machine for. simultaneously produc
'‘ coil longitudinally over the table; a plurality'of
_
l elongate box dies "for cutting strip blanks,- each
40
tabler'means for feeding-the strip stock from
the coil longitudinally over the table; an elon
gate box die, including‘a punch member and a
‘ ‘ versally ofthe tablelwith their longitudinal axes
13i
LI
:be actednuvpon, when at, rest onsthe ,tablejtoepre
iduce. a, plurality 'of- blanks at each stroke of the
the stock at each stroke of the punch'member and
located with respect to the path of travel of the’
v stock over the table, so. that'after punching each
livery end of the table and acting- crosswise
thereof upon the tongues left onthe- stock by
3the operation of , said box dies, _ said shearing 5;:
‘mechanism having its cutting edges spaced from‘
the nearest ends of the box die punch members,
a distance equalto the length of a strip blank;
‘and means for operating said box dies-and shear
ing mechanism simultaneously, whereby a 'pl‘u»
,rality of said‘strip blanks may be cut from-the
body portion of the stock, and a plurality-ofsaid
strip blanks may be cut from the end portions
of the tongues of the, stock, at the same time,
‘
7. In a machine for simultaneously producing a
great number of strip blanks of like length ‘from
coil stock, the combination of an elongate table:
means for feedingthe strip stock from the ‘coil
' longitudinally over'the table; a plurality of elon
gate box dies. for cutting strip blanks, each in~
‘eluding a punch'member and a die proper, said
die pro-per, disposed with its longitudinal axis
parallel to the longitudinal axis of. the table, '
said box die of a size to cut a strip blank from
jwidth of a'strip blank,ww-herebyj-the stock may
box .die punch members, and leave tongues at
itached to the stock for other Potential strip
> blanks; shearing mechanism arranged at-the -de-'
ing a plurality of strip blanks of like length;
from coil stock, the combination of an "elongate
including a punch member and a die proper, said
‘ box~dies arranged in side- by- side relation trans
parallel‘ and with tlzueirw punch members spaced
japart'from each other a-distancej-equal; to the
V c
of 'a size to cut a strip blank from the stock at
{ tached to the stock for other potential strip
,
_
ing a plurality of strip blanks of like length from
coil stock, the combination of an elongate table;
means for feeding the strip stock from the coil
longi-tudi-nally‘v over the table; an elongate box
die, including a punch member vand a die proper,
disposed with its longitudinal axis parallel to
‘the longitudinal axis of the table, said box die
‘ parallel and with their punch members spaced 1
‘
'
:8; ‘In a machine for simultaneously produc
i box‘dies arranged in side by side relation trans
; versely of the table with their longitudinal axes
1
,
,
‘
stock bysaid box dies, saidshearing mechanism
having its cutting edges spaced from the nearest
stripblank therefrom, there, is left a tongue ex
tending from the stock laterally of the hole from
which saidv blank is punched, suf?cient for an
other potential strip ‘blank; shearing mechanism
at the delivery end of the'table in the path of ,
travel of said tongue and located a distance
from said box die equal to the length of a strip
blank for cutting strip blanks from the tongue of
the stock; and means for operating said box die
and shearing. mechanism simultaneously.
10.- In a machine for simultaneously producing
a plurality of strip blanks of like length from.
coil stock, the combination of an elongate table;
means for feeding the strip stock 'from‘the coil‘
longitudinally cverthe table; an elongate box die, ‘
including ‘a punch member and aldieproper,
disposed with its longitudinal ‘axis parallel to» the
longitudinal axis of the table,‘ said box die of; a
size to cut-a strip blank‘from the stock at each
stroke of the punch member andilocated" with
respect to’ the path of travelof the stock over
the table, so that'arfter punching each strip blank‘
versely-of the tablecwith their longitudinal axes- -‘1 therefrom,
there is left’ a tongue extending from;
parallel and with their punchmembers ‘spaced ‘ the'stock'latera'lly
of the hole from which said
apart ‘from-each other -a distance equal to the 75 blank isf'punched, ‘su?icient for ‘another .potenl
box dies arranged in side by side relation trans
72,406,155
,
tial strip blank; a stop at the box die against
which the body portion of the stock at the root
‘14..
13. In a machine for simultaneously producing -
a great number of strip blanks of like length from
coil strip stock, the combination of an elongate
of the tongue will engage after the strip blank
table; means for feeding the ‘strip stock from the
has been cut therefrom and the stock has been
coil longitudinally over the table; a ?rst series
advanced to present uncut stock between the
of elongate box dies, each including a punch
punch member and die proper of the box die;
member and a die proper, disposed in side by
and shearing mechanism at the delivery end of
side relation transversally of the table, with their
the table in the path of travel of said tongue
axes parallel to the longitudinal axis of the table,
and located a distance from said box die equal
to the length of a strip blank for cutting strip 10 said box dies each of a size to cut a strip blank
from the stock at each stroke of its-punch mem
blanks from the tongue of the stock.
ber and’ said box dies located at the entry end of
11. In a machine for simultaneously produc
the table and spaced apart a distance equal to.
ing a great number of strip‘ blanks of like length
~the width of the strip blank; a second series of
from coil strip stock, the combination of an elon
gate table; means for feeding the strip stock from 15 box‘ dies, like those of the ?rst series, arranged
in axial‘ alignment therewith transversally of the
the coil longitudinally over the table; a ?rst series
table and spaced from said ?rst series forwardly
of elongate box dies, each including a punch
in the path of travel of the stock over the table,
member and a die proper, disposed in side by
a distance equal to the length of two strip blanks;
side relation transversally of the table, with their
axes parallel to the longitudinal axis of the table, 20 a stop at one or more of .the box dies of said sec
ond series of box dies against which the body
said box dies each of a size to cut a strip blank
portion of the stock will engage after the strip
from the stock at each stroke of its punch mem
blank has been cut therefrom by its respective
ber and said box dies located at the entry end of
box die and the stock has been advanced to
the table and spaced apart a distance equal to the
present uncut between/the punch member and die
width of the strip blank; a second series of box
proper of its respective box die; a ?rst shearing
dies, like those of the ?rst series, arranged in
mechanism, located forwardly of said second se
axial alignment therewith transversally of the
ries of box dies and spaced therefrom a distance
table and spaced from said ?rst series forwardly
in the path of travel of the stock over the table, ' equal to the length of a strip blank and a sec
a distance equal to the length of two strip 30 0nd shearing mechanism located forwardly of
said ?rst shearing mechanism and’spaced there
blanks; a ?rst shearing mechanism, located for
from a distance equal to the length of a strip
wardly of said second series of box dies and
blank, said ?rst and second shearing‘mechanisms
spaced therefrom a distance equal to the length
being located in the path of travel of the tongues
of a strip blank; and a second shearing mech
anism located forwardly of said ?rst shearing : of the stock left extending from the body of the
stock, as a result of punching strip blanks from
mechanism and spaced therefrom a distance
the stock by said second series of box‘ dies.
equal to the length of a strip blank, said ?rst and
14. In a machine for producing a plurality of
second shearing mechanisms being located in the
scroll edged strip blanks of like length from coil
path of travel of the tongues of the stock left ex
tending from the body of the stock, as a result 40 stock, the combination of an elongate table;
means for feeding the stock from the coil longi
of punching strip blanks from the stock by said
tudinally over‘ the table; an elongate box die,
second series of box dies.
,
including a punch member having scroll edged
12.‘ In a machine for simultaneously producing
sides and ends and a die proper having scroll
a great number of strip blanks of like length
edged sides and ends for cooperation therewith
from coil strip stock, the combination of an elon
to produce a blank scroll edged at sides and ends,
gate table; means for feeding the strip stock from
said elongate box die disposed with its longitudi
the coil longitudinally over the table; a ?rst series
of elongate box dies, each including a punch . nal axis parallel to the longitudinal axis of the
table and constructed and arranged to cut scroll
member and a die proper, disposed in side by
50
edged strip blank from the stock at each stroke
side relation transversally of the table, with their
of the punch member and located with respect
axes parallel to the longitudinal axis of the table,
to the path of travel of the stock over the table
said box dies each of a size to cut a strip blank
so that after punching each strip blank there
from the stock at each stroke of its punch mem
from, there is left a scroll edged tongue extend
ber and said box dies located at the entry end of
ing from the stock laterally of the hole from
the table and spaced apart a distance equal to the
which said blank is punched, sufficient for an
width of the strip blank; a second series of box
other potential scroll edged strip blank; a stop
dies, like those of the ?rst series, arranged in
at the box die against which the scroll edge of
axial‘alignment therewith transversally of the
the body portion of the stock at the root of the
table and spaced from said ?rst series forwardly
in the path of travel of the stock over the table, (ll tongue will engage after the strip blank has been
cut therefrom and the stock has been advanced
a distance equal to the length of two strip blanks;
to present uncut stock between the punch mem
a ?rst shearing mechanism, located forwardly of
ber and die proper of the box die; parallel guides
said second series of box dies and spaced there
on said table for engaging the scroll edged sides
from a distance equal to the length of a strip
of the tongue;‘and shearing mechanism at the
blank; 3, second shearing mechanism located for
‘delivery end of the table in the path of travel
wardly of said ?rst shearing mechanism and
of said tongue, located a distance from said box
spaced therefrom a distance equal to the length
die equal to the length of a strip blank and con
of a strip blank, said ?rst and second shearing
structed and arranged for cutting a scroll ended
mechanisms being located in the, path of travel
of the tongues of the stock left extending from 70 strip blank from the tongue'of the stock.
15. In a machine for producing a plurality of
the body of the stock, as a result of punching
scroll edged strip blanks of like length from coil
strip blanks from the stock by said second series
stock, the combination of an elongate‘ table;
of box dies; and means for operating said ?rst
means for feeding the stock from thecoil longi
and second series of box dies and said ?rst and
tudinally over the table; an elongate box die,
second shearing mechanisms simultaneously.
2,406,155
15'?
including a punch member having scroll edged
sides and ends and a die proper having scroll
edged sides and ends for cooperation therewith
to produce a blank scroll edged at sides and ends,
said elongate box die disposed with its longitudi
nal axis parallel to the longitudinal axis of the
table and constructed and arranged to cut scroll
‘
edged strip blank from the stock at each stroke‘
~ of the punch member and located with respect
16"
ing ‘from the stock laterally of the hole from
which said blank is punched, suf?cient for an
other potential scroll edged strip blank; parallel
guides on said table for engaging the scroll edged
sides of the tongue; and shearing mechanism at
the delivery end of the table in the path of travel
of said tongue, located a distance from said box
die equal to the length of a strip blank and con
structed and arranged for cutting a scroll ended 7
to the path of travel of the stock over the table 1O strip blank from the tongue of the stock.
so that after punching each strip blank there
from, there is left a scroll edged‘tongue extend
ROBERT W. MESSENGER.
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