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Патент USA US2411503

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Nov. 26, 1946. `
Filed Jan. s; v1941
15 sheets-sheet 1
Ntîbv.v 26', 1946,. '
A, _CALLEs’oN Er M_
' 2,411,503
Filed Jan. 3, 1941
15 Sheets-Sheet 2
NOV. 26, 1946.
2,411,503 '
Filed Jan. 3, 1941
15 sheetsfsneet s
Nov. 26, 1946.
vA. cALLEsoN Erm.
Filed Jan. s, 1941
15 sheets-s115914
N_ov. 26,- 1946.
A.'cALLESo_N r-:rAL
Filed Jan. s,A 1941
' 2,411,503
_15 sheets-sheet e
Noè. 26, 1946
Nqv. 26, 1946I
A. cALLEsoN l-:rAL
Nov. 26,- 1946.`
2,41 1,503
Filed Jan. 3, 1941
15 Sheets-Sheet 9
Nov. 26, 1946.
cALLEsoN Erm.>
2,411,503 '
Filed Jan. s, 1941
15 Sheets-Sheet 10 `
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Filed Jam.> 3, 1941 l
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Nov. 26, 1946.
Filed Jan. s, 1941
15 sheets-sheet 15
Ams Calleson
Patented Nov. 26,
` -
~ 2,411,503 `
Uui‘rEofsTATEs PATENT " offrira
Amos Calleson and Edgar A. Calleson, Merrick,
N. Y., assignors to Crown Cork «it Seat @om
pany, Inc., Baltimore, Md., a corporation oi’ New
Application January 3, 1941, Serial No. 373,028 _
32 Claims. (Ci. 11S-.38)
lThis invention relates to presses, and in par
Figure'3 ls a rear elevation of the press. 'l
Figure 4 is a side elevation of the press with
parts omitted.
' ticular to presses designed to _draw a cup from a‘
>fiat blank, for example as the initial step in the
~production of ' a drawn metal can. `In preferred
- embodiment, the invention contemplates a press
adapted to handle a strip material, and in this _
Figure 5 is a plan view of the press. .
Figure'ö is a section substantially on line 6_6 ¿ '
:of Figure 5.
connection‘an object of the invention is to pro
' Figure 7 is a section substantially on line 1_1
vide an improved feeding and guiding means for
the strip so that the same will be presented accu
of Figure 6.
rately to the blank forming mechanism of the 10
press. Another object is to provide Ídrawing
mechanism of double action type which will be
more durable and will give greater output ‘and
better quality. Another object is to provide a
yielding draw ring or rings designed to bear with-
of Figure
- -
Figure 9 is a section substantially on line 9_9
of Figure 1.
Figure 10 isa section substantially on line
in_lll of Figure 11..
exactitude to prevent the formation of wrinkles.
Another object is to -provide a press with -mini
mum working stroke due to the spacing apart of
the upper and lower forming members only suf
ñciently to readily receive a fed strip ,between
Figure 8 is a section substantially online 8_8
Figure 11 is' a' section substantially von lin _
Il_ll of Figure 1.
Figure 12 is a section substantially on line
l2-.l2 of Figure 2.
Figure 13 shows, in enlarged scale, structure _ '
them when the press is open. Another object is
appearing at the 'upper ceptral portion of Fig
ure 2.
to provide improved drawing mechanism where
Figure 1'4 Arepeats in part the showing of Fig
in binding effects are avoided, and whereinl pres
sure on the blank margins is reduced during the
vdrawing operation so that damage from excessive
compression is obviatcd. Another object is to
provide a movable die, rather than a 'movable
draw ring, so that the necessary stroke of the
ure 13 with parts in different relation. '
_ Figure 15 repeats in part the showing -of Fig- '
ure 13 with parts in still diñerent relation.
Figure 16 is an axial section of pressure grad
ing mechanism which appears in the left hand _
central portion- of Figure 3.
drawing punch is shortened.. >thus providing
Figure 17 iis an enlarged elevation »of feed - A
smoother and more rapid operation.' Another 30 mechanism, seen from the front as in Figure 1_.
object is toprovide for the rapid separation to a
Figure 18 is an elevation ofthe mechanism of
Figure 17 as seen from the right o_f that ligure.
~considerable distance' apart of the coperating
drawing elementsso as to render the latter read
Figure 19 _is a section on line l9__|9 of Fig
._ ily accessible for repair or'rep1acement. Another
ure 18. _
object is toprovide a -scrap cutter automatically 35 _Figure 20 is a section on line 2li-20 of Fig-_.
operated in timed relation 'andconstituting a
ure 17.
Figure 21 is- a section on line 2l-'-2I of Fig
unit which may be readily moved >from operative '
position to give access to the drawing mechanism.
vAnother object is to provide safety. features- _' _
whereby the possibility of damage to the press ~40
in operation is reduced. ~Summing up the above
and other objects which will appear hereinafter,
Figure 22 is a section on line 22_22 of Fig
ure 17.
Figure 23 is an elevation of the mechanism of
Figure 24 is a section o_n line 24-24 of Fig-v
the purpose ofthe invention is to provide a press
adapted in each cycle -of operation to. feed a strip,
ure 22.
punch a plurality of.blaulm from the strip, draw 45
Flgure 25 is a partial plan view of strip'guid
'the blanks, clear the'zformedl articles, and sever _ ing mechanism.Figure 26. is a section 'of the mechanism of -Flg‘- '
the scrap, all with exceptional speed, safety and ' _
ure 25, taken substantially on line ZS-ZG of Fig
accuracy.' Description of the invention will be
made with reference to a preferred embodiment.-
'shown by‘way of example in the accompanying 50
drawings, in which 1
' Figure _1 is a front elevation of a'press con
structedin accordance with the invention.'
Figure 2 is a section substantially on line 2_2
of Figure 1.
ure 2, and
Figure 27 is a diagram showing certain circuits
_ and »safety provisions.
^ ` Main ¿frame>
' » ’The main frame of the press comprises a pair
of side standards 30 and 3|, Figures- 1 to 9 and 1l.,-
having a. lower' expanded portion 63 and a cen
tral transverse web 64 at the ends of which are
portions 65 and 66, Figures 5 and 6, guided in y
connected at their lower ends by a cross strut 32.
The upper portions of the standards are some-`
what- expanded to provide side walls 33 and 34
which are joined by front and rear walls 35 .and
‘the guideways l41 and 48, transverse displace
36. 'I'.he outer faces of the standards are pro
vided with channels 31 and 38 which terminate
bearing against the inner margins of the guide
ment of the slide being prevented by shoulders
ways as particularly shown in Figure 5.
Projecting from the sides of the slide into
openings 33 and 4l are aligned trunnions 61 and
‘ withA vertical ribs 4i and 42 having faces, in a 10 68 to which are pivoted the upper ends of links
69 and 1l which lie in the channels 31 and 38.
common plane, against which are bolted guide
The lower expanded portion`63 of the slide is
rails or tracks 43 and 44, the bolts passing
upwardly in vertical Vguide openings 39 and 4l! as ’
particularly shown in Figures 4 and 5.
The inner faces >of the standards are provided
provided with four openings as at 1|, Figure 13,
through horizontally elongated openings in rail
aligned with the openings in the bolster plate
44 so that the latter is adjustable toward and
away from the other. The outer face of rail 44 15 andof a size to receive the upper portion of the
sleeves as at 53. A cap 12 secured to ythe slide
is recessed to provide inclined surfaces with
above opening 1i has a hemispherical internal
which cooperate a number' of wedges 46, Figure 9,
surface 13A engaged by the spherical head
engaged by cap screws threaded into outer ribs
14 of a link 15, the head being retained against
of the rails. By loosening the rail bolts, proper
adjustment of the rails is obtainable through ad 20 the bearing surface by a retainer ring 16. Link
15 has a lower> spherical head 11 whose end is
justment of the wedges. Above the rails the in
engaged in a complementary seat 18~ formed in
ner faces of the side walls 34 and 35 are provided
a block 19 which is received in the upper end of
with vertical guidewaysü and 48, Figures 6 and
a hollow cylindrical member 60, the block being ,
7, these guideways being respectively aligned with
held against a. shoulder 8i by a retainer ring 82.
Fixed to the lower end of member 80 is a draw
. .the rails 43 and 44.,
The lower portions of the standards are ex
tended forwardly at 49 and 50 to »provide bear
ing portions for the operating shafts which will
be later described.
Bolster plate and appurtenances
ing plmch 83 having a cylindrical cavity 84 in
its -outer portion, the punch clearing through
the opening in base member 55, having a sliding
30 iìt in the draw ring 6I, and being normally posi
tioned relative to the latter as shown in Figure
13. The punch carrier 80 has a sliding ñt in
Reference numeral 5I designates a horizontal
bolster plate secured against the lower edges of
the front and rear frame walls 35 and 36 as in
dicated in Figure 2. The bolster plate is pro
sleeve 53. The lower outer edge of the punch
is_beveled and provided withv openings 83’ for
the escape inwardly of air and oil trapped be
tween the punch andthe blank, the openings
vided with two pairs of vertical circular open
ings which are> staggered in the fore and aft
terminating inwardlyl in d an annular groove.`
' Compression or vacuum effects above the punch
direction of the press. Disposed in these open
, ings and bolted to the top of the plate are guide
83 are prevented by the provision of an _air groove
65 in
sleeves of which two are indicated at 52 and 53, 40
It will be understood that similar punches,
Figure 2. _These sleeves- are identical.
similarly molmted, are associated with the other
Referring particularly to'Figures 13 to 15, it
draw and cutting ring assemblies. , Any mis-`
will be seen that the sleeve 53. terminates down
Y alignment between caps 12 and sleeves 53 is ac
wardly at vabout -the lower level of the bolster
plate. and that at an intermediate point it is
provided with a lubricant inlet duct'54 which
communicates with grooves in the inner walls of
the sleeve.
Secured to. the bottom face .of the bolster platev
isa base .member 55 which has a circular open- Y
ing coaxial with sleeve 53. Member 55 is pro
vided- with a downwardly open annular recess 56
commodated by the` double ball joint connec
tions, this preventingany binding action dur
ing the drawing operation.
'Knock-out devices
sudablelin the cavity s4 of punch si is a pad
or piston 86 having a hollow stem 81 guided in
Í a bushing 86 fixed in <the lower end oi’ the carrier
which- constitutes a chamber for an annular pis
8l. The space above pad 86 islin' communica
ton 51 equipped at its top with suitable leathers
tion with an air groove 89 formed in thelower
as shown. An inlet. duct 58 for ñuid under pres 65.. edge of carrier“ and'it will be noted that the _
pad and punch are grooved and perforated in a
sure leads into the top of the chamber;__
A retainer and adapter ring 59 is secured to
manner so that -vacuum or compression effects
the bolster plate through member 55 and pro
_ of any kind will be avoided, the pad having open
jects into the outer marginal portion of the re
ings 64' commlmicating with'the internal groove
cess 56, piston 51 being normally borne against
of the punch. The lower end of a rod 90 is fixed
Yring 59 by the pressure in the piston chamber.
in the Ystem 61, the rod extending upwardly
_Secured against the lower inner portion of
ring 59 is a cutting ring 66 which provides a
shoulder for the normal support of a draw ring
6|, the draw ring having an upper annular por
tion engaged under piston 51. 'I'he draw ring
and piston are slightly universally tiltable so
that the draw ring is self-adjusting to evenlyen
-gage the margins of a blank during t‘he drawing
through perforations‘ in >the bearings 12 >and 19
and a longitudinal bore of link 15, the clearances
being suchas not to interfere with the required
flexibility ofthe ball .'ioint.
The upper end ofV rod 90 is threaded into a.
ñtting 9| and interposed between the latter and
the cap 12 is _a’compression spring 92 which
serves to yleldingly maintain the knock-out pad
70 in the normal position shown in Figure 13 where
Similar draw and cutting ring equipment is
in it is entirely within punch 83. Fitting 9| is
'associated with all the sleeves such as`53.
pivoted to an arm 93 ñxed in radial, generally
horizontally extending relation to a rock shaft
Upper slide and appurtenances
94 mounted in bearings 96 and 96 on the top of
Reference numeral 62 designates an upper slide 15 web 64 of slide 62. Fixed on shaft 9! adjacent
bearing 96 is an arm 91 to which is pivoted one - _ -frame, Figures 2 and 3. By operating motor | 4|,
end of a link 98 whose other end is pivoted to an
nut |26 can be reciprocated betweenthe -stops
upright arm'99 of a bell crank lever |00 pivoted
> |34 and |35. A preferred control system, as will
lto brackets |0| on the front wall 35 of the frame,
be later described, involves limit switches oper
Figures 1, 2 and 5. l
y ated by slide || 3 for stopping motor |4| at the
a An` arm- |02', Figure 5, fixed on shaft 94. like,
upper and lower limits of travel of the slide. It
and disposed as arm 93, is pivoted to a fitting
will be evident that by threading nut |28 down- -
|03 associated. with the knock-out mechanism
wardly on the screw the slide I|3 can be loweredV
through a considerable distance so as'to render
for the punch at the left of punch `93.
, .
the cutting and forming appurtenances readily
Journaled in bearings |04 and |05 mounted on'
topv of web 64 is a rock shaft |06 above and par
allel to shaft 94,*shaft |06 having fixed thereto
Pivoted to the central pivot |30" »of the toggle
arms |01,and |08 like arms 93 and |0|, butex
constituted by links |30 and |3| is a yoke-shaped
tending oppositely, Arms |01 and |08 are pivoted
portion |44 of a link- |45, Figures 2, 11 and 12,'
to fittings |09 and | |0 associated with the knock 15 which includes a. forwardportion |46 having a
out mechanism for the two rear punches. Arm
square shank |41 engaged in a square socket |48
93, Figure 2, has a hub portion formed with gear
of portion |44. ' A transversely directed pocket
teeth l|| which engage'the teeth of a mutilated
|49 of portion |44 slidablyreceives a spring cup
gear` ||2 ñxed on shaft |06. The' two gears are
|50 which houses, as here shown, two springs |5|
of the same size, and, consequently, when shaft 20 and |52 which bear at one end- against the end
wall of the cup and at the other-against a, follower
94 is rocked in a clockwise direction,- all'of the
arms will be swung downwardly through the same
~ |53 engaged by -a cap screw |54.r threaded in a
closure |55 which is in turn threaded in the outerend of the pocket. Set in the end of the spring
' Lower slide and appurtenances .
25 cup I 50 lis a block |56 having> an inclined edge
engaged with a. similarly inclined edge of a block
A lower'slide, generally designated by the ref
|51 set in shank |41. The engagement of the '
erence numeral H3, has an upper flat table por-inclinedl portions of the blocks 'under the pressure
' tion ||4 and lower- lateral legs ||5 and ||6, the
sides of the slide being grooved for engagement _ of the springs is such that under ordinary ten
with rails 43 and 44 as particularly shown in Fig 30 sion applied to link |46, portion |44 will follow.
Under extraordinary resistance, however, block
ures 8, 9 and 11. The table portion is provided
|51 will cam block |56 outwardlysand thelink
Vwith openings beneath the four punches, *that>
portions will separate. »
beneath punch 83 being designated by the refer- _
Link portion |46 is pivoted between the rear
>ence numeral ||1, Figure 13. Fixed on the table~
portion is a’shoe ||-8 having a central-,opening
portions of-plate portions |58 and|59 of a lever f*
|60 by means of a pin |6|. Lever | pivoted
on a hollow shaft I 62 which extends between and
through bearings provided in frame portions 49
coaxial with the opening | I1 and secured on shoe
||8 by means `of clamping segments is a drawing .
die ||9 Vdesigned for coaction with ,cutting ring
60, draw ring 6| and punch`83. 'I'he shoe has air 0 and 50‘. . Between forward portions of plate por
openings as at -||8’.> The upper end of die ||9 is 4.
tions |58 and |59 a cam following'roller |63 is .
mounted on a pin |64. Pivoted on the‘right hand
side of levers |60 to the rear of shaft |62 is an
arm |66 whichat its upper bifurcated end car
received in'an vopening -in-a stripper plate |20,
the latter being yieldingly supportedwith possi
bility of vertical adjustment by spring devices 12| _
of which there Vmay conveniently be three, as
shown inl Figure 8.- Beneath openings as at ||1
are vinclines as at |22, Figure 13, which lead -t_o
discharge openings as> at |23 and- |24-, >Figure 1,
trips as at |22'v being mounted onthe inclines to
ries a -cam following roller |61, the lower end of
_the arm engaging an adjustable abutment. |68
on the hub of lever |60 so that counterclockwise
swinging of arm |65 is positively limited. When
- lever |60- is swung in clockwise direction, Figure
2, by means to be hereinafter described, the toggle ~
A cross portion |25 of slidev |_|3 has a central 50 constituted by links |30 and |3| - is straightened
to a controlled extent and slide ||3 is elevated
>vertical bore in whichis rotatably received’a nut
|_26 having a lower thrust member constituted by a ’ ' in its working stroke.
tilt the formed articles for free discharge.
' ,
worm gear |21 and an upper thrust member con
stituted by a ring |28threaded on the upper end
of the nut, Engaged in nut |26 is a vertical screwl 55
strip feeding and guiding mechanism '
Secured to the front wall l35 of the frame is
a pair of brackets |69 and |10,1Figures 1 and 17
- |29 whose lower end -is supported on a transverse
axis on the upper end of a link |30 pivoted through , to 20, 25'and 26, havingjdepending portions | 1|
I a pin~ |30' to a link |3_| which is in turn pivotedV ' and |12 in the lower extremities of which is jour
von a bearing block |32 on the main frame cross
' naled a roll shaft |13 on which is mounted va pair
portion 32, the links constituting a rearwardly 60k of feed rolls |14 and intermediate lcircular discs
’ breaking toggle. -V A fiat lower front portion of the
|15 which serve as hold-down membersand have
screw |29 bears against a wearV plate |33 fixedv
no feeding function. Rails |16 and |11, of angu
on an upwardly extending portion of strut 32.- _ lar section; having horizontal portions supporting
a feed plate |18 which is interrupted at the feed
Fixed to the lower rear portion of the screw is
a stop |34 and ñxed on the upper end of the screw 65 rolls and hold-down discs and'has its top surface .' - is a cap |35 vwhich projects over nut |26 to con- ‘
tangential to the topsloiî~ the- lower feed rolls andY
stitute an upper stop. The normal -relation of _
at the height ofthe top surface of the stripper
plate |20. Clamped against anA upwardly extend
ing flange of rail |11 by means of a block.'|19
_Supported on suitable bearings beneath por
tion |25 of slide |-|3 and engaged ~with worm gear 70 is -a rectilinear wear strap |80 which lis parallel
to the press center line andso properly guides
|21 is a worm|36 which through'universal joints
A the right -hand edge of the strip.
|31 and |38 and an extensible and <collapsible
_ The left hand-portion of the plate |18 is pro
drive shaft |39 and through a friction lclutch |40
vided with a plurality of rectangular recesses as
vis connected to'the armature shaft _of a reversible
motor |4| mounted on a bracket |42 fixed to the' 75 at 380,' Figures 25 and 26, _in which are slidable _
> .the parts is shown in Figure 2;
pawl 'dropping behind
blocks or slides 38| in the transverse direction of
the plate, these blocks each having a portion 382
slimmerv .'_rssä_ of' the _
ratchet wheel so that the parts are conditioned
for the succeeding feeding operation. Shaft |13
' slidable beneath the plate |18, a portion 383 hav
is- equipped with a hand wheel 281 for manual
ing a top surface level with the top of the plate,
and an upstanding portion 384 against which is> 5> adjustment of the feed, and desirably 'friction
brakes 288 and 288 for the feed shafts, anchored
clamped a rectilinear wear strip '385. The left
- hand end of slide 38| is held down by a plate 388
on the vshaft bearings, are provided.
flange of rail |18.
A post 381 is fixed in and
_ extends downwardly from slide 38| and is en
_ -
The feed rolls |14 and |84 'are identical and
secured to the top of a vertically extendingA
roll |84 is shown in detail -in Figures 22 to 24.
10 Referring particularly to these figures, a cylin
drical core or sleeve 2|8is positioned on shaft
|8| by means of a screw 2| | and is surrounded by
vother end is anchored to a post 388 iixed in and
- , a ring 2|2 which has a peripheral rib 2|3 for
extending downwardly from plate |18.
'driving engagementwith the strip. A tapered
slides, as at 38|,v engage the left hand edge of
strip S so that the right hand edge of the latter 15 pin 2|4 is received in atapered diametrical bore
in shaft |8| and held by a cylindrical> nut 2|5
is at all times yieldingly held against the wear
which is threaded on one end of the pin, the nut
strip |88.v When the _slides are pulled to the left,
being received in an opening in sleeve 2 | 8 and in
the lower ends of the posts as at 381 may be en
an enlarged opening 2|8 in- ring 2|2. lThe other
gaged by pivoted rings 388 to hold the slidesv out
' gaged by one end of a tension spring 388 whose
so that the strip may be readily threaded
through the apparatus, the feed rolls at this time
being »separated by means which will be later
A shaft |8| has its ends journaled inblocks
end of pin 2|4 carries a roller 2|1 which is re
c'eived in an opening in sleeve 2|'8 and in an
axially elongated opening 2|8 of ring 2|2. It will .
»be evident that rotation of shaft |8| will be
transmittedto ring 2|2 through roller 2|1 and
|82 and |83 vertically slidable in guideways in 25 that the ring can move axially of _the shaft due
toV the axial elongation of the. opening 2|8.
bracket portions |1| and |12V and carries feed
rolls |88 and hold-down discs |85 which are di
rectly above the lower rolls and discs. Rods _|88
Openings 2|8 and 2|8 are provided with threaded r
_ closures 2|'8 and 228.
Retainer rings Í.22| and 222 at the ends of sleeve
|82 and |83v extend upwardly through bores |88 30 `2 f8 and ring 2|2 are _connected together by bolts
and |88, Figure 17, provided in the brackets. ' 223 extending through axial bores in ring 2|2.
and |81 threaded in the upper portions of blocks
The left hand ends of bolts 223 are received in
Sleeves as at |88 threaded in' the upper` ends of
spring pockets 224 and compression springs 225
bores |88 and |88 serve as_abutments for the
are interposed between the nuts and the bottoms
upper ends of compression springs |8| and |82
which bearV at their >lower ends against blocks |82 35 -of the pockets. Consequently, the ring 2|2 is
yieldingly held in_the position particularly shown
' and |83, thereby yieldingly urging rolls |84 to
in Figure 22, although it vcan move longitudinally
ward rolls |14 so as to cause the rolls to engage f
of shaft |8| to some extent in either direction.
the strip S with feeding pressure.
'I'he axial displa‘ceability of the feed rolls is
Fixed on shaft |13 outwardly of bracket por
tion |12 is a gear |83 which meshes with a gear 40. provided 'in order to allow the strip to be fed
through _with its right hand edge against-„the
|84, of equal size, iìxed on shaft |8|. Fixed on
stationary guide |88, but not _forced into or away
shaft |13 outwardly of gear |83 -is a ratchet wheel
from the guide by the action of the rolls. _ Dur#
|85 beyond which a mutilated gear |88 is freely'
ing feeding there may be a tendency for the rolls ’
carried by the shaft. An arm |81 projecting from
gear |88 carries a pawl |88, Figures 1'7, 18 and 21, 45 to force the strip out of its path, due, for exam
having a nose portion cooperable with >ratchet
. wheel |85 and urged'into engagement with the
ple, to. a slight misalignment of the feed rolls, to
lack of uniformity in strip thickness, or to
ratchet wheel by a spring-pressed plunger |88
Awrinkles or the like in the strip. ‘ 'I‘he yieldable
feed rolls will move axially, allowing the sheet to
plane of pawl -|88 is a member 288 having a ta 60 follow its correct path. _
.pered foot portion 28| cooperable with a latch
In order to permit the _return of the feed roll
rings to normal position, if they have been ax
or stop member 282 pivoted at 283 on a lower
on‘an arm |81.>
Also fixed to arm |81 in the
extension284~of bracket portion |12 and urged
ially displaced lduring 'a feeding operation, the
following mechanism' is provided: _
toward Vthe ratchet wheel |85 by a spring-pressed
plunger 285. A rack 288 guided in extension 284, 55 Rods |88 and |81 have their upper ends en- v
gaged in square sleeves 228 and 221 which are re
_ Figure _18, engages gear |88. -With the parts in
tained by'nuts threaded on the extremities of the
the position shown, and vas particularly
rods. The-rear faces of sleeves 228 and 221 are
Figure 21, the nose of pawl |88 is behind a
slidable against the faces of backing brackets
Y shoulder |85a of the ratchet wheel and the foot
portion of member 288 is interposed between the so as at 228, `Figure 1_8.l A rock shaft 228 is Jour
naled in bearing members 2.38 and 23| fixed to
ratchet wheel and the extremity of stop 282 so
the main brackets _|88 and |18 and has ñxed
that the nose 282s of the latter is held away from
thereon dogs 232 and 233 which includecollar
shoulder |85b of the ratchet wheel so that the
portions notched to provide shoulders 284 and
latter is free to be driven. If rack 288 is-moved
’ upwardly, the ratchet wheel and therewith shafts 05 238, Figures 18 and 20, which underly the for
ward lower edges of sleeves 228 and 2_21. Dog
|13 and |8| are driven in a direction` to feed the
233 has a forked end straddling a rod 248 be
strip. As this drive proceeds, foot portion> 28|
moves away from ratchet 282 so that the nose
282' of the latter rides on the periphery of the .
ratchet wheel. As the stroke of pawl |88 is com
neath a collar 24| adjustably fixed on the rod,
the upper end of the rod being pivoted .to 'the
7o other arm 88' of bellcrank lever |88, Figure 2.
Consequently, each time rod 248 is pulled down
wardly, by means which will be later described.
to operate the knock-outs., dog 233 is swung in'
a counterclockwise direction, Figure 18, rocking
portion 28| engages the extremity of latch 282
18 shaft 228 and pulling rods |88 and |81 and bear
. and returns it to the position of Figure 2l,
pleted, shoulder |851: of the ratchet wheel en-'
gages nose 282e of thelatch to prevent over
As rack 288 returns to normal position,`
_ings |82 and4 |83 upwardly so that shaft |8| is . .mentalities are rendered accessible from the'rear.
ulifted clear of the strip S. -Thus between feed
Reverse operation of crank 26 collapses the tog
~ ing operations the feed rolls are freed and under
gle andreturns' the frame to operative position
the- action of their springs are returned to nor
‘ wherein it is'locked by the, worin and worm wheel. `
mal position if they have been displaced during 5
the preceding feeding operation.
The free end of dog 23a-Figures 1'1 -and 20,1ies
Drive mechanism
lMounted on a table 2.15 secured tothe upper
- behind a roller 236 mounted on an eccentric pin "
Dertien 0f Standard 3| iS a motor 275 Connected
at one' end of a shaft 231 te the other end of
-los' belts 211 .with a pu1le¥2l8 which is free on a
which issecured a crank 238, the shaft being l0 main dnl/6 Shaft 219, Figure 2 'journaled in a
ljóurnaled in a bearing member 239 on bracket
housing 23° Secured in transversely extending Ye
lss. It win be'evident- that by swinging crank" ~ lation to standard 3|, Figure ,1. A fly whee128|
23s in a; counter-clockwise direction, Figure 2o,
is free on shaft 219 adjacent and nxed to pulley
. shaft 22a will te rocked te eievate shaft isi.
- 218, Figure 9. Dnve from thepulley tothe shaft
'I‘his manual elevating means is principally use- _15 ls'adapted t0 be effected-by means -0f an air
r¿u1 when the strip is being initially threaded
clutch 282 which may be similar to that disclosed ,
f «through the apparel-,usL> at which time, as has
in the patent torGladfelter, No.2,813,144,‘granted `
previously been mentioned, »the left hand strip
September 3. 1935-~ l The pulley and ily wheel are
guiding slides, as at zal, Figures 25 and 26, are
Adisposed in a housing constituted in part by a
heid outwardly-by the rings as_at aan.
20 pivoted portion 283 held in closed position by s
Preferably, the strip s e is brought te the feed
latch 284. An air brake for shaft 219 is disposed
rolls in such manner that the rolls exert little,
in a» housing 235 at the ODI-lesite ,end 0f, the Shaft
if any feeding effect and have mainly a regulafrom the pulley and may be of any suitable con
tory eñect on the strip advanee, Thai; is, unstruction, air pressure serving to close the brake.
Y l winding mechanism is provided which preferablyv 25 A rOCk Shaft 285 Supported in a bracket 281, FÍS
tends to push the Strip tothe feed rens,
Scrap cutter l
ure 9, has at one end an eccentric pin carrying a
brake shoe 288 cooperable with„the rim of the fly
wheel 28|. ' An arm 289 iìxed on shaft 266 .has
Referring vto Figures 2 and 3, a frame 242 has
its free end pivoted to a rod 298. on which is fixed
upwardly extending arms pivoted to brackets 243 30 ' a piston in a cylinder~ 29|„Figures 1 -and 9, the
and 244 on the rear wall 36 of the main frame.
vpiston being'supported on a bracket 292 on hous
The frame includes lower side portions 245 and A -ing 288. The ily wheel brake-is'applied by ad
246 connected at their lower ends by a bed plate
241 on which'is ñxed a knife 248. Slidably guid
l‘mitting air under pressure to cylinder'29l through
any suitable type of valve.
ed between frame portion 245 and 246 is a cross 35
A pinion 292 fixed on an intermediate portion '
head 249 equipped with a blade 258 for cooper
~ of shaft 219 engagesl a gear 293, Figure 1, ñxed
ation-with blade 248. , The latter in- the normal v onta main shaft 388 whose ends are journaled
ï position'ef frame 242 is at about the ievei er
in bearings 38| and 382 on frameportions 49'
V the stripper vplate |28. and above this plate the
and 58. As here shown, the- bearing caps are'
frame carries a guide plate 25|. .A rock shaft 40 provided with sockets in which a're engaged struts 252 mounted in bearings 253 and 254 on the
as at 383, Figure 2,*,supporting a cross >bar 384v to
inner face of wall 36, Figure-5; has fixed thereto a
pair of arms 255 and 256 which extend through>
openings 251 and 256'in the wall and are pivoted
-to the upper ends of links ~259 and 268 whose lower
.ends are pivotally connected to the’top of cross
head 249.
which housing plates are secured.
Adiacent v
bearing 38 I, shaft 388 has fixed thereon a single-» rise cam'385, Figures l and 1l, which cooperates'
45 with a roller 386, see also Figure 2, carried by a
lever 381»pivoted at A388 on a pin extending in-wardly from frame portion 58. T_he forwardly'
projecting end of lever 381 is pivoted to the lower
end of rod 248, which’latter is adjustable as tol
Arm 255 is provided between its ends with down
wardextensions which support a pivot pin 26|
o_n which is-pivoted one end of alink 262 _whose 50 length.v The cam following roller 386 is borne e
other end is _pivotally connected to a bracket 2_63
against cam l-385 by means of a compression
on tli'e upper slide 62;
When the slide is _ moved " A spring 389 under the'free end of lever 381.
v downwardly, shaft 252 is rocked and operatively
To the left of cam 385, a cam 3I8 is fixed on' y
moves knife 258 relative to'knife 248 tosever
shaft 388 and cooperates with 4roller |61* which,
the scrap, knife 258 returning as the-slide is re 55 it willvbe remembered, is carried by the arm |66l turned`
.Bearing 244, Figure 3, has a lower extension
providing` bearings for a worm 264 and'foraworm f
wheel,- in a housing 265, `engaged by the worm.
' mounted on lever |68. '_I‘he roller |63, carried by -
lever |68 follows a cam 3H ñxed on shaft 388 to
the left of cam 3|8. v.The pro:iiles'of4 these latter `
cams appear in Figure 2.
The worm has ñxed thereon a crank 266. The „o To the left of eem sii, eam's si: and altere
worm wheel is fixed on a. shaft 261 which extends
fixed 'oni shaft 388, the profiles of these cams
part way across the outside of wall 36 to a bear- „
being shown in Figure l0.
ing 268,v Figure 3, on the rear' wall 36 of the
Referring'toFigures 1, 2, 4, 10 and l1 in par-`
main frame. Fixed on shaft 261 centrally of
ticular, a shaft 3I4 is journaled in bearings 3| 5
frame 242 is a link 269 whose free end is pivoted 65 and 3|6 `at the top of main frame portions 49 ,
. A to one end> of a link 218, whose other end is piv
and 58 and is equipped with a nxed arm 3|1 hav
oted to a cross portion I242' of.'fra1ne 242. By
ing a forked end receiving a roller 3i8 on a pin
turning crank 266 in the proper direction the
3|9, this roller constituting affollower for cam
toggle constituted by links 269 and 218 is straight
3|3. A pin 328~shas1a squared portion -32| se.
ened, thus swinging 'frame 242 tothe dot and ‘ 70 cured in a rectangular recess at the end of a'
dash position of Figure 2, this operation. being
further arm 322 on shaft 3 I4. A lever 323 pivoted
assisted by a pair of tension deviccs'21l and 212
on ‘,a round' portion of pin 328 carries in its lower
which are pivotally connected between the main
forked end a roller 324 on a pin 325, this roller
frame and the cutter frame. With the cutter- y constituting a follower for cam 3|2. 'Lever 323
thus positioned the cutting» _and punching instru 75 >has a Vportion extending oppositely from its roller
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