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Патент USA US3092390

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June 4, 1963
T. H. ANDERSON ETAL
3,092,380
APPARATUS FOR STACKING CUT‘ FORMS AT HIGH SPEED
Filed Oct. 5. 1960
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THEODORE H. ANDERSON
> RICHARD H. HARRI
BY
TON
QéyJQQ
AIZQ IVE)’
J1me 4, 1963
T. H. ANDERSON ETAL
3,092,330
APPARATUS FOR STACKING cu'r FORMS AT HIGH SPEED
Filed Oct. 3, 1960
4 Sheets-Sheet 2
June 4, 1953
T. H. ANDERSON ETAL
3,092,380
APPARATUS FOR STACKING CUT FORMS AT HIGH SPEED
Filed 001:. s, 1960
4 Sheets-Sheet 3
June 4, 1963
.
T. H. ANDERSON ETAL
3,092,330
APPARATUS FOR STACKING CUT FORMS AT HIGH SPEED
Filed Oct. 3, 1960
4 Sheets-Sheet 4
FIG. 4
51
,HOR\ZONTAL
United States
3&92380
Wilt
Patented June 4, 1963
1
2
According to ‘the invention, the improved stacking
3,092.,380__
_,
APPARATUS FOR STACKING CUT FQRMS
AT HIGH SPEED
Theodore H. Anderson and Richard H. Harrington, Ves
tal, N.Y., assignors to International Business Machines
gorlporation, New York, N.Y., a corporation of New
or
Fuedoces, i960, Ser. No. scans
12 Claims. (Cl. 271-71)
This invention relates to apparatus for stacking cut
forms, such as record cards, checks or the like at high
speed, and more particularly relates to an improved stack
device comprises means for advancing out forms suc
cessively forward along a predetermined path prescribed
by a guide means. Means, preferably in the form of a
belt and a roll, is disposed adjacent the terminal end of the
guide means to intercept each form and arrest its forward
movement as the form is driven between the belt and roll
and concurrently move such form generally sidewise and
on end toward a pocket to cause the form to be stacked
successively on such end in the pocket. The belt and roll
preferably have a peripheral speed which is a small frac
tion of the peripheral speed of the feed-rcll-type advancing
means, so that the form will be moved sidewise at a sub
ingapparatus for stacking serially fed for-mson their short
stantially lower speed than the high speed at which it
edges by decelerating them without damage and moving 15 approaches the belt and roll so as to be stacked without
them generally sidewise and on end from their previous
path in such manner that the forms retain their original
order.
The present trend is to feed forms “serially” (that is,
lengthwise or short-edge ?rst) throuigh computers. in
order to reduce the buffer and storage requirements
necessitated when forms are fed in “parallel” (that is,
shortwise or long-edge ?rst). To process a given number
of forms per minute in a serial feed type machine requires
damage. To assure that a form cannot overtake a preced
ing form and thus cause the forms to be stacked in an
order di?ferent from their original order, the advancing
means includes feed rolls which keep the form moving
at said high speed until the trailing edge of each form
reaches a point near the exit end of the feed rolls and
somewhat more than a form length from the belt. There
after, in the manner hereinafter described, the trailing
portion of the form will be snapped out of the path of the
considerably higher transport velocities than would be 25 succeeding form, so that as the forms tend to accumulate
required to process the same number of forms in a
in overlying shingle-like fashion at the terminal end of the
parallel feed type machine, because of the differences in
guide means, they will be advanced fanwise in their origin
dimensions of the forms along their feed axis. More
al order. The belt and roll advance the foms toward the
over, since certain ?xed minimum time intervals must be
pocket in a direction which will preserve their original
maintained between successive forms for such as sensing, 30 order.
punching or printing operations, Whether such for-ms are
The foregoing and other objects, features and advan
fed serially or in parallel, it will be apparent that an even
tages of the invention will be apparent from the following
further increase in transport velocity between and after
more particular description of preferred embodiments of
these operations is required over and above that necessary
the invention, as illustrated in the accompanying drawings,
merely to compensate for the increased dimension of the 35 wherein:
‘
forms in the feeding direction during serial processing. It
is therefore necessary to provide a stacking device capable
of stacking, at high rates, forms fed thereto serially at
high velocities.
FIG. 1 is a side elevation view of a stacking device ems
bodying the invention;
FIG. 2 is an enlarged section view, taken along the line
2—2 of FIG. 1 and showing the means for arrestingr the
~ Stacking apparatus has heretofore been proposed com— 40 cards and moving them laterally and on end relative to
prising one feed means, such as a conveyor belt, for feed
their former path and to a pocket;
ing sheets successively into decelerators and/or pincers
FIG. 3 is a schematic perspective View, to enlarged scale,
at a so-called cornering station, and another feed means
of the arresting and moving means showing how the cards
to thereafter feed the sheets at 90° to their original path
are moved fanwise to a pocket and stacked on end;
but ‘in essentially the same plane for ?atwise stacking on 45
FIG. 4 is an elevation view of said arresting and moving
the top of a stack. Edgewise stacking has heretofore
means taken in the direction of the arrow 4 of PEG. 1; and
been proposed in various types of so-called radial stackers
FIG. 5 is an elevation View like FIG. 4, except illus
wherein cards are successively directed into edgewise
trating a modi?ed portion of the stacking device shown in
contact with a concavely curved de?ector which is joggled
FIGS. 1 to 4.
to stack the cards on their edges. However, in these 50
previously proposed arrangements the'cards will be stacked
in reverse order to their original order unless they are
turned over prior to stacking. Also, these previously
proposed stacking arrangements require considerable
Descripti0n——FIGS. 1 to 4
As illustrated in these ?gures, the stacking device em
bodying the invention comprises a substantially vertical
back plate 10 secured at an obtuse angle of such as 105°
to a downwardly and forwardly inclined bed plate 11. A
plurality of sets of feed rolls 12 ‘and 13 ‘are rotatablysup
velocity.
ported on pins carried by brackets secured to the back
The principal object of the invention is therefore to
plate 10. At least the larger rolls of each such set, but
provide an improved high-‘rate stacking device which is
relatively inexpensive to manufacture, is relatively simple 60 preferably both rolls of each set, ‘are positively driven at
transport system speed by suitable gearing or transmission
in construction and is especially suitable for stacking
means (not shown). As indicated by the arrows, rolls 12
serially fed forms, such as record cards, at high speed and
‘advance one set of cards C successively lengthwise from
in their original order without damage.
space and they are generally not suitable for high-rate
stacking of serially fed forms moving at extremely high
Another object'is to provide "an improved stacking device
wherein forms from different transport systems may be
readily merged‘in side—by-side relation and deposited inthe
same stack.
Still another object is to provide an improved, compact,
multi-pocket stacking device wherein the‘forms are stacked
right to left as viewed in FIGS. 1 and 2 from one trans
port system; whereas rolls 13 advance another set of cards
C’ in the reverse direction from another transport system.
Cards C and C’ are adapted to be deposited selectively
in one of a plurality of pockets P and P’, respectively;
or a card C and a card C’ may be merged by concur-rent
on end on their‘short edges to conserve space, and wherein 70 sliding contact with respective converging concave deflect
forms can be removed from any pocket while other forms
are being stacked.
ing surfaces 14, 15 of a V-shaped de?ector 16 following
which they are deposited in a merge pocket MP. Since
3,092,380
3
4
these surfaces 14, 15 converge in a V, merged cards C
and C’ would normally be deposited face-to-?ace or back
to-back in pocket MP, according to whether they are both
fed face up or face down through the rolls 12, 13. So
that they will be stacked in order and face-to-back, cards
straight terminal surface extending vertically downward
and spaced slightly from surface 43.
C are fed into rolls 12 face down; and cards C’ are fed
into rolls 13 face up after having been turned over, such
provided in the upper guides 26, whereas bends 39, 44 are
provided in the lower guides 36, 41 respectively. How
It will thus be noted that the different sets of guides
26, 27 and 35, 36 and 40, 41 are of somewhat different
con?guration in that, among other things, the bends 28 are
ever, each set of these guides is of identical configura
tion ‘below their respective aligned horizontal surfaces.
de?ector 17 by transport rolls 18.
To select the particular pockets into which cards C or 10
The guides 26, 27 and 35, 36 and 40, 41 are suitably
secured to the back plate 10, such as by screws which
C’ are to be stacked, magnets 20, 21, 22, 23 are provided
pass through outturned ears formed integrally with the
each having an armature 24 operatively connected to a
rear edges of their curved upper portions and through
respective rockable ?ipper-type pocket selector 25 or other
as by being driven around the outside of a semi-circular
gating element to flip the selector down when its corre
sponding magnet is energized. Hence, a card C will be
de?ected into the right-hand pocket P after passing
through the rightmost rolls 12 if magnet 20 is deenergized
and its selector 25 is therefore up as shown in FIGURE 1.
A card C will be de?ected into the lefthand pocket P
after passing through the two rightmost sets of rolls 12
if magnet 20 is energized and rocks its selector 25 down
spacer sleeves 45 and are screwed into the back plate.
Stiifening ribs 46 are preferably provided along the front
edges of the guide surfaces 30, 38‘, 43. Feed rolls 47 are
provided just above the corresponding horizontal surfaces
29, 37, or 42 and preferably are driven to maintain the
card moving at the same velocity as imparted by rolls 12
and 13.
Referring now to FIGS. 1 to 4, a mechanism 50 is dis
and magnet 21 is deenergized. If magnets 20 and 21 are
posed below the lower end of each set of guides 26, 27
concurrently energized and their selectors 25 are therefore
r and 35, 36 and 40, 41 to frictionally contact and decelerate
the downwardly moving cards and move them‘ fanwise
both rocked down, a card C will pass through ‘the three
sets of rolls 12 and into merge pocket MP. Similarly a 25 on end generally horizontally in a curved path and deposit
card C’ will be de?ected into the left-hand pocket P’ if
them successively ?atwise against a preceding card of a
magnet 22 is deenergized, into the right-hand pocket P’ if
stack of cards in a respective pocket P, P’ or MP.
magnet 22 is energized while magnet 23 is deenergized,
As illustrated, each mechanism 50 comprises a belt
51 passing around a driven pulley 52 and an idler pulley
and into the merge pocket MP if magnets 22, 23 are con
currently energized.
30 53. The upper edge of each belt 51 is somewhat more
than a card length from the horizontal surface 29, 37
The selectors 25 controlled by magnets 20, 21 are rock
or 42, for reasons presently to be explained. ‘The periph
ably supported on pins carried by, and near the right or
ery of mid-portion of a roll 54 impinges or encroaches
card entering end of, curved upper guides 26 that co
on the rear run of belt 51 so that when a card is be
operate with curved lower guides 27 to de?ne a chute
tween the roll and the belt the card will have arcuate
or passage through which cards C can pass leftwardly and
downwardly toward the respective pockets P. These
guides 26, 27 are preferably stamped from sheet metal
stock. Each guide 26 has a concave guide surface of
generally the same curvature as de?ector surface 14 but
extending lower than surface 14 and having a convex
bend at 28 joining a straight substantially vertical terminal
guide surface. Each guide 27 has a convex guide surface
which also extends lower than surface 14 and is joined,
(rather than merely linear) frictional contact with the
roll and belt. The belt 51 and roll 54 are preferably
both positively driven at the same peripheral velocity
which is a small fraction, such as about ten to twenty
percent, of the peripheral velocity of the rolls 12, 13,
18, 47.
'
‘As illustrated in FIG; 4, the pulley 52 may, for ex
ample, be driven from a drive shaft 55 to which is keyed
a small spur gear 56 that is below the bed plate 11
by a horizontal rightwardly extending surface 29 above
bend 28, to a substantially straight terminal surface 30 45 and meshes with a larger spur gear 57 keyed to a shaft
58 that drives the roll 54. The ratio of the pitch diam
that extends vertically downward and is spaced slightly
eters of gears 56 to 57 is substantially in proportion
from the vertical surface of the corresponding guide 26.
to the diameters of the pulley 52 (plus about the belt
The selectors 25 controlled by magnets 22, 23 are rock
thickness) to roll 54. The shafts for the pulleys and
ably supponted on pins carried near the left end of curved
upper guides 35 that cooperate with curved lower guides 50 roll 54 are suitably journaled, preferably in ball bearings
carried by the bed plate 11.
36 ‘to de?ne a chute or passage through which cards C’
As best shown in FIG. 2, as successive cards C or
can pass rightwardly and downwardly toward the respec
tive pockets P’. Each preferably stamped guide 35 has a
. C’ leave the belt 51 and roll 54 on end and long-edge
?rst, they are guided by a curved portion of a ?xed rear
de?ector surface 15 but extending lower than surface 15 55 wall 60 of the corresponding pocket P, P’ or M'P into
concave guide surface of generally the same curvature as
and terminating in a horizontal surface 37 at the same
height as the surfaces 29. Each surface 37 extends right
wardly and joins a straight terminal surface 38 that ex
contact with a leaf-type de?ector spring 61 that is car
ried by said wall. Spring 61 urges the successive cards
generally forward and into ?atwise contact with an in
clined card support 62 (or ?atwise contact with a pre
tends substantially vertically downward. Each guide 36 60
ceding card supported by said support). This support
has a convex guide surface which also extends lower than
surface 15, and below surface 37 has a convex bend 39
that joins a downwardly extending terminal surface gen
erally parallel to and spaced slightly from the straight
62 serves as an expansible front wall'of the pocket
because as the weight of the cards increases the front
wall will move forward against resistance of a bias
spring (not shown).
surface 38 of guide 35.
65
A conventional cam-actuated joggler mechanism (not
Guides 40, 41 receive cards C and C’ to be merged in
shown) preferably is employed to joggle the cards after
pocket MP and provide convex guide surfaces spaced
they are delivered to the pocket. This joggler mech
slightly below, and having generally the same con?gura
anism is used to provide space for following cards to en-.
tion as, de?ector surfaces 14, 15 respectively. The lower
ter a pocket so that they do not have to displace previ
end of the convex surface of guide 40 joins a horizontal 70 ously stacked cards. This joggler mechanism also causes
surface 42 that is at the same level as surfaces 29, 37 and
the cards to be stacked perfectly "square” with the cards
extends rightward and joins a downwardly extending
already stacked, in the manner heretofore disclosed in
vertical surface 43. The lower end of the convex surface
radial type stacking devices. The various pockets P,
' MP, P’ are laterally separated by respective partitions
of guide 41 has a convex bend 44 which, like the bends
28, 39, is below the horizontal surface 42 and joins a 75 63 which provide side walls for the pockets.
3,092,380
6
Summary of Operation-FIGS. 1 to 4
If magnet 20 is deenergized, the pocket selector 25
controlled thereby will be up, as shown in FIGURE 1.
Hence, as a card C passes leftward through the right
most rolls 12, it will be guided downward through the
rightmost set of guides 26, 2'7 and into the feed rolls
47 which will keep the card moving at the same velocity
as imparted by rolls 12.
initially, the card will be bowed transversely into a
upper end of said roll. Since the diameter of the driv
ing member 70 is greater than that of belt 51, and the
diameter of the curved porto'n 71 of the roll 54 is less
than that of ‘the belt-engaging portion of said roll, the
upper part of the card will be driven laterally by said
driving member somewhat faster than the lower part and
slip somewhat relative to said curved portion. This will
tilt the card by an amount necessary to square the lower
edge of the card with the bed plate 11 by the time it
leaves the decelerating mechanism 51, 54 and contacts
C-shape by guides 26, 27. However, as the leading por 10 the
curved portion'iof rear wall 62.
_
tion of the card passes below surface 2d and down
Meanwhile, in view of the decelerating action of the
around bend 28, it will be constrained to bend in a
belt 51 and roll 54 succeeding cards will enter between
slightly reversed C-shape due to the convex curvature
said belt and roll before the particular card has been
of bend 28, thus causing the card to be bowed generally
into a slight S-shape. As soon as the trailing edge 15 moved into its selected pocket P. The cards will thus
accumulate below ‘the surface ‘29 and be moved in shingle
of the card moves below surface 2d, the card will tend
to straighten itself and the trailing portion of the card
like overlying fashion through the belt 51 and roll 54,
the trailing portion of the card has moved rightward.
lying ‘against the card support 62 increases, the latter will
as shown in FIGS, 1, 2, and 3.,
,
will move rightward into contact with straight surface
As each card leaves the belt 51 spring 61 will de?ect
30 and out of the path of a succeeding card. The sur
face 29 is somewhat more than a card length from the 20 it forward from :the rear wall 60 of the pocket for stack
ing it on end ?atwise against the preceding card (or the
upper edge of belt 51 so that the card will not be driven
inclined card suppont 62). As the weight of the cards
between the decelerating belt 51 and roll 54 until after
creep forward (i.e., away from rear wall) against the
The speed of the card is maintained by rolls 47 to pre—
vent a succeeding card from entering between the pre 25 resistance of a bias spring (not shown).
ceding card and guide 27.
At this point, it is to be noted that even if a card
or some other form (such as a bank check) does not
have su?icient inherent stiffness to cause its trailing por
tions to snap over into contact with surface 30 as soon 30
. To direct a card G into the left-hand pocket P, magnet
‘20 is energized but ‘magnet 21 is maintained deenergized.
As a result, the selector 25 connected to magnet 20 is
?ipped down to ‘guide the card past the guides 26, ‘27
for [the righthand ‘pocket and through the intermediate
rolls 12 and into the left-hand set of guides 26, 27, as
as the trailing edge of such form passes below the
viewed in FIG. 1. Otherwise operation is the same as
horizontal surface 29, the original order of such forms
already described.
will nevertheless be maintained because roll 47 will keep
To direct a card C ‘and a card C’ to the merge pocket
a preceding form moving fast enough so that it will be
at least partially pinched between the belt 51 and roll 35 MP, magnets 20, 21, 22, 23 are concurrently energized
to rock down the selectors 25 controlled thereby. Card
54 and moved somewhat laterally before the leading edge
C will be guided ‘through the three sets of rolls 1-2 by
of the succeeding form can contact such preceding form.
passing over the selectors 25 between said rolls and over
As soon as a form is pinched between the belt 51 and
both upper guides 26, and then move down along de
roll 54 and moved a slight distance laterally, it will be
bowed generally longitudinally or in a lengthwise direc 40 ?ector surface 14; and card C, after being inverted by
being ‘driven around the semi-circular de?ector 17 by
tion and thus stiffened to cause its rear portion to con
rolls 18, will pass through the three sets of rolls 13 by
tact straight surface 3-9. Also, the lowermost parallel
passing over the selector 25 and over both sets of guides
portions of the guides 26, 27 will constrain the rear
35, and then move down along de?ector surface 15. The
edge of the form to contact surface 39 and thus prevent
the trailing edge of such form from being hit by the 45 cards C ‘and C’ will concurrently enter the rolls 47 with
their front faces facing nightward, assuming that cards
leading edge of a succeeding form.
C pass through the rolls 12 front face down and cards
In any event, as the leading portion of the card enters
C’ pass through the rolls 13 front face up due to their
between the slow roll 54 and slow laterally moving belt
inversion by passing around de?ector 17. When ‘the
51, the card will be moved generally sidewise by said
roll and belt and also initially slightly downward until 50 ‘trailing edges of these cards drop below surface 42, the
bend 44 will snap them over into contact with surface
the momentum due to its entering velocity is dissipated
43, in rthe same manner as described in connection with
or snubbed by the braking action of said roll and belt.
bend 28, land ‘surface 29. Thereafter the ‘cards will be
If the included angle between the back plate 10 and
advanced by the belt 51 and roll ‘54 to pocket MP in
bed plate 11 is some angle other than 90° (for example,
about 105° as illustrated in FIGS. l to 4), the guide 55 the same manner as already described. However, even
if the cards C and C’ tend to fan out slightly and overlap,
surface 39 governing the approved path of the card to
card C will consistently be stacked ?atwise against the
the decelerating belt 51 and roll 54 will be at the same
preceding card and card C’ will be stacked ?atwise
angle to the plane of operation ofsaid belt and roll.
against card C, due to the fact that the belt 51 and mu
Hence, as the cards enter between the belt 51 and roll
54 at an obtuse angle to the bed plate 11, they must 60 v54 move the cards leftward as viewed‘in FIG. 1. Thus,
the cards will be deposited front ‘face forward toward
be squared up so that their lower edges are parallel to
‘the expansible wall or card ‘support 62, and will thus vbe
the bed plate.
stacked in ‘thesame relative order as that in which they
As best shown in FIGS. 3 and 4, the card is squared
entered the rolls 12 and 13.
up by an accelerating or driving member 7%} mounted on
If it is desired to have cards fed front face upward
the driven pulley 52 just above the belt 51. This driv 65
(rather ‘than downward) through the transport system,
ing member 70 may be in the form of an annular rim
for reading, punching or marking from the top (rather
or ?ange formed integrally with and concentrically sur
than bottom), ‘and yet stack them
‘such manner that
rounding the upper part of pulley 52, or as is preferred,
their original order is preserved, then the turn-‘around
in the form of an O-ring non-slippingly mounted over
the upper part of said pulley. In either event, the mem 70 de?ector I17 and rolls 18 need merely be transposed so
that they will turn over cards C prior to being fed into
ber 7%) is of larger diameter than the arc of the belt
51 running around the pulley 52. While a card is moving
the ?rst set ‘of _' rolls ‘12(rather than turn over cards C’
between the roll 54 and belt 51, the driving member 70
prior to being fed into the ?rst‘sett‘of rolls 13, ‘as illus
will press the card against a convexly curved or smaller
trated). On ‘the other hand, the ‘same result may be
effective diameter portion 71 of roll 54 adjacent the
accomplished without‘changin'g the location of the turn
3,092,880
around de?ector 17 and rolls 18, butby changing the
direction of feeding of the roll 54 and belt 51 so that
they move the cards rightward, instead of leftward, as
viewed in FIGS. :1 and 2.
It will now be apparent that if a card C’ is fed front
face up through rolls 13 and either into the left-hand
pocket P’ as viewed in FIGS. 1 and 2 due to deenergiza
tion ‘of magnet 22 or into the right-hand pocket P’ due
to energization of magnet 22 but not magnet 23, the
8
3. The combination according to claim 2, wherein the
advancing means advances the forms forward at one
velocity, and the endless means intercepts each form and
halts its forward movement and advances it generally
I sidewise and on end at a velocity lower than said one
velocity and toward the pocket for stacking in such
pocket on such end.
4. In an apparatus for stacking out forms, the combina
tion of guide means for guiding each form in a prede
cards C’ will be stacked front face forward against the 10 termined path, means for advancing the forms succes
corresponding card support 62 and hence stacked in
sively forward along said path, means de?ning a pocket
the same order as that in which they were fed into the
having a ?xed end wall and an oppostiely arranged ex
rolls I13.
pansible end wall, other means disposed adjacent the ter
minal end of said guide means to intercept each form and
I It will be apparent that the cards C or C’ may be
removed from any of the pockets P, P’ or MP while 15 arrest its forward movement and concurrently move such
the stacking device is operating merely by removing the
form generally sidewise and on end toward the ?xed
card contacting the particular card support 62 and any
wall of the pocket, and resilient means for contacting
desired number of cards to the rear thereof.
a ?at side of each form as it emerges on its said end from
It will also be noted that from the time a card enters
said other means and biasing such form toward said
the guides until it is advanced by the belt 51 and roll 20. expansible wall thereby to cause successive cards to be
54 :to the appropriate pocket, its movement is continually
stacked on their said ends in the pocket and in ?at-side to
positively controlled.
Description and Operati0n—-FIG. 5
?at-side relation against the expansible wall.
5. The combination according to claim 4, wherein
angles to its forward component of movement at a veloc
at said nip, ‘and means for moving at least one of said
indicia is present on a certain side of each form, and said
The stacking device constructed according to this em 25 other means is so disposed relative to the guide means
bodiment fo the invention differs from that illustrated in
and pocket as to cause the forms to be stacked with their
FIGS. 1 to 4 only in that ‘the bed plate 11' and axes
respective certain sides facing the expansible wall to
of rotation of the roll 54 and pulleys 52, 5-3 are at an
cause the forms to be stacked in the same order as that
angle of 90° (rather than 105°) to the back plate 10',
in which they were initially fed into the guide means.
and the driving member 70 is therefore eliminated be— 30
6. In an apparatus for stacking cut forms, the combina
cause it is not needed to tilt a card to square it with the
tion of guide means for guiding each form in a predeter
bed plate. ‘In all other respects the structure and opera
mined path, means for advancing the forms successively
tion of this modi?ed form of stacking device is the same
forward along said path and including two members, one
as already described in connection with FIGS. 1 to 4.
providing a substantially straight surface which joins a
While the invention has been particularly shown and 35 curved de?ecting surface, and the other providing a sur
described with reference to preferred embodiments there
face substantially parallel and longer than said straight
of, it will be understood by those skilled in the art that
surface to create a cavity between the exit side of said
the foregoing ‘and other changes in form and details may
advancing means and such parallel surfaces, thereby to
be made therein without departing from the spirit and
cause such form to be successively bowed transversely
scope of the invention.
40 by sliding contact with said de?ecting surface and then
What is claimed is:
cause the trailing portion of such form to snap out of the
1. In
apparatus for stacking out forms in a pocket,
path of a succeeding form as soon as the trailing edge
the combination of guide means for guiding each form
of the ?rst-mentioned form enters said cavity and permits
in a predetermined path, means for advancing the forms
the form to straighten itself under the straightening action
successively forward along said path at one velocity,
of said parallel surfaces.
and endless means having closely arranged movable sur
7. In an apparatus for transporting out forms, the
faces providing a hip disposed adjacent the terminal end
combination of means including feed means and guide
of said guide means to snubbingly intercept each form as
means for feeding forms successively in a de?ned path
it exits without obstruction or interruption from the guide
at one velocity, two endless elements having respective
means and reduce its forward component of movement 50 movable surfaces providing a nip into which each form
to zero while concurrently moving such form generally
is fed and which surfaces move in directions to transport
sidewise and on end and in a direction generally at right
each form generally transversely of the axis of said path
ity slower than said one velocity toward the pocket there
surfaces at a relatively slow peripheral speed for snub
by to cause successive forms to move in overlapping .55 bing continued movement of each form in the direction
shingle-like relation toward the pocket and be caused
of said axis and advancing each form successively on end
to stack on such end on the pocket.
2. In an apparatus for stacking out forms in a pocket,
and generally sidewise at a velocity less than said one
velocity.
the combination of guide means for guiding each form
8. In an apparatus for stacking cut forms, the com
in a predetermined path, means for advancing the forms 60 bination of means including feed rolls ‘and guide means
successively forward along said path, a plurality of end
for feeding forms successively in a de?ned path at one
less means providing two pairs of continuously movable
velocity, two elements having respective movable surfaces
endless mating surfaces providing respective nips for
between which each form is fed, and means for continu
concurrently engaging different portions of each form
ously moving both of said surfaces at the same peripheral
after it leaves the guide means to snub its continued for 65 speed which same speed is a relatively small fraction of
ward movement and move each form generally in a direc
the peripheral speed of said feed rolls, said surfaces
tion cross-wise of its former direction, the axes of move—
being moved by the last introduced means in a curved
ment of all said endless means being parallel to each
path in a plane generally at right angles to the axis
of the terminal part of said de?ned path for snubbing
other but inclined to the direction of such forward move
ment of each form ‘as it emerges from the guide means, 70 continued movement of each form in the direction of said
andmeans operative to drive at least one of the mating
terminal part and advancing each form successively on
end and generally sidewise at a velocity less than said
surfaces of each pair at different velocities to cause the
one velocity, means de?ning ‘a pocket having a ?xed end
form, while being driven generally sidewise, to be til-ted
and an expansible opposite end and a bed between said
a degree necessary to render its leading edge substantially
75 ends, and means associated with said ?xed end and
parallel ‘to said axes of movement.
9
3,092,380
effective as each form leaves the elements to resiliently
urge such form toward said expansible end for stacking
such form on such end on the bed.
9. Sheet conveying apparatus comprising feed and
guide means for feeding sheets in the planes thereof with
a certain edge foremost, and endless means providing two
closely arranged counter-movable surfaces driven and
disposed to provide a moving nip elongated in the direc—
10
the nip to be moved in a controlled curved path, and
means for driving the sheets successively without obstruc
tion into said nip from a direction generally at right
angles to the path ‘of movement of the nip, whereby move
ment of the sheets in said curved path will commence
before movement of the sheets in said direction ceases.
'12. In an apparatus for stacking cut forms in a pocket,
the combination of guide means for guiding each form
in a predetermined path, means for advancing the forms
tion of movement of said surfaces and into which said
edges are advanced by said feed means without inter 10 successively forward along said path, a plurality of end
vening reduction in forward progress of the sheets, and
less members providing a nip disposed adjacent the ter
means for moving said surfaces of said endless means
minal end of said guide means, said endless members
in directions as necessary to advance the sheets sidewise
comprising a movable belt and a movable roll that im
and on end in a transverse direction generally parallel
pinges on one run of the belt, and means for driving
to said certain edges, thereby concurrently to snub con 15 at least ‘one of said endless means to cause each form
tinued movement of the sheets in their former path and
when within the nip to be driven continuously in an
advance the sheets sidewise on end at generally right
arcuate path, whereby as each form enters said nip its
angles to said former path.
forward movement will be snubbingly arrested as it is
10. Sheet conveying apparatus comprising feed and
concurrently moved in the arcuate path and generally side
guide means for feeding sheets in the planes thereof
wise and on end toward the pocket for causing the forms
with a certain portion foremost, sheet snubbing means
to be stacked successively on such end in the pocket.
including 1a pair of endless members cooperating to pro
vide a resiliently spreadable moving nip into which the
sheets ‘are advanced directly without interruption or ob
struction by said feed means with said certain portions 25
foremost and which pinch the sheets to arrest their con
tinued forward movement, and means including said snub
bing means for conveying the sheets sidewise with another
portion forward during such snubbing.
11. In ya sheet conveying apparatus, the combination 30
of two endless members one of which impinges on a
substantial portion of the curved surface of the other to
provide an elongated sheet-receiving nip, means for mov
ing ‘at least one of said members to cause sheets within
References Cited in the ?le of this patent
UNITED STATES PATENTS
1,581,583
Low ________ __- ______ __. Apr. 20, 1926
1,960,311
2,288,149
La Bombard ________ .... May 29, 1934
Williams ____________ __ June 30, 1942
2,352,088
Evans __1 ____________ __ June 20, 1944
2,761,680
2,929,490
Lens ________________ _.._ Sept. 4, 1956
Stewart _____________ __ Mar. 22, 1960
2,933,313
S'tObb ____, ____________ __ Apr. 19, 1960
2,964,161
Lopez _______________ __ Dec. 13, 1960
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