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Патент USA US2124855

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July ¿26, 1938.
R. HITCHCOCK
2,124,855
PAPER HANDLING MACHINE
Filed Oct. l0, 1923
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July 26, 1938.
R. H|TcHcocK
2,124,855
PAPER HANDLING MACHINE
Filed Oct. 10, v1928
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2,124,855
Patented July 26, 1938
UNITED STATES PATENT OFFICE
2,124,855
PAPER HANDLING» MACHINE
Reuben Hitchcock, Cleveland, Ohio, assignor, by
mesne assignments, to Dexter Folder Company,
New York, N. Y., a corporation of New York
Application October 10, 1928, Serial No. 311,463
5 Claims.
(Cl. 271-52)
This invention relates to improvements in paper
handling machines and has reference particularly
to sheet feeding.
One of the objects of the invention is the pro
5 vision of means which shall permit of the use of
a feed table of minimum size with respect to
the size of sheets to be handled.
Another object is the provision of means for
feeding sheets from a stack and over a feed table,
10 the partsbeing so designed and arranged that a
positive control of the sheets is had at all times,
and so that they are moved against and along
a side guide to produce accurate alignment with a
minimum amount of longitudinal movement.
Another object is the provision of means for
adjustably regulating the distance between the
sheet feeder and the positive sheet moving means
or drive upon the feed table, in order that each
sheet regardless of size may be under the control
‘30 cf the feed table drive before it leaves the con
trol of the sheet feeder, yet providing an ad
justability which will permit the release of the
sheet, whatever its length, from control of the
sheet feeder after it is grasped by the driving
-33 means of the table, and hence permitting the
sheet aligning devices of the feed table to begin
to function unhampered by the sheet feeder after
the travel of the sheet upon the feed table is
well under way.
_
Still another object is the reduction in the
number of driven rollers in feed tables of this
class.
A further object is the provision- of means
which shall insure accurate alignment and feed
3,5, ing of sheets that are wider than they are long.
Other objects and features of novelty will
appear as I proceed with the description of those
embodiments of the invention which, for the
purposes of the present application, Ihave illus~
„l0 trated in the accompanying drawings, in which
Fig. 1 is a plan View of a folding machine having4
a single folding section of the buckling type, a
portion of the figure being in section> substan
tially on the line I--I of Fig. 2;
Fig. 2 is al View of the same machine? partly inv
Y side elevation and partly in vertical section upon
the line 2--2 of Fig. 1;
Fig. 3 is a transverse vertical sectional view
taken substantially on the line 3-3 of Fig. 1;
Fig. 4 is a transverse vertical sectional View
taken substantially on` the line ¿lL-¿lof` Fig. 1;
Fig. 5 is a view similar to Fig. 2, but showing a
modified feed table construction', the view'being
55
, partly in section onthe line-3_6 of Fig. 5;
Fig. 6 is a plan view of the same with a portion
of the structure in horizontal section on the line
6-5 ofv Fig. 5; and
Fig. '7 is a detail sectional view on a larger scale,
the section being taken substantially on the line
1-1 of Fig. 6.
In the drawings I have illustrated by way of
example a folding machine of the buckle type
embodying a single fold section. The invention
may be employed, however, in conjunction with
any machine which is adapted to 4act upon sheets 10
fed to it one at a time.
In the present instance
the frame of a folding machine, indicated at I0,
rotatably supports a series of folding rolls II, I2,
I3 and I4 which cooperate with one or both of two
fold plates I5’ and I6, the folded sheets being
delivered by the rolls I3, I4 onto the surface of
an endless belt stacker I1, supported upon rollers
18'? and I9. In front of the >folding section just
described is a feed table comprising a rectangular
frame 20 to the outer end of which is attached a
pair of supporting legs 2|.
Referring now more particularly to the form
of the invention shown in Figs. 1 to 4, inclusive,
the frame 20 has secured to the upper surface
thereof by screws 22 or the like a ñat plate 23
which may be in a single piece or a multiplicity
of pieces. The surface of this plate is adapted
to support and guide sheets directly between lthe
rolls IIl and I2> of the folding section. It is
preferably reinforced intermediate the sides
thereof by underlying longitudinal bars 24 and
25. These bars, together with one or both of the
side bars of the frame 2U, rotatably support a
plurality of diagonally arranged shafts 26, 21, 28
carrying thereon short rollers 29 of identical
form.Y These rollers extend through openings 30
in the plate 23, their upper surfaces being ap
proximately upon a level with the upper surface
of the plate 23 in'order that sheets lying upon the
surface of the plate may have motion imparted 40
thereto by the rotation of the rollers.
.
Any convenient means for driving the shafts
26, 21, 23 in the same direction and preferably at
the Same speed may be‘employed. In the pres
ent case I have shown endless belts 3l and 32 for
operatively interconnecting these shafts, the shaft
28 being driven through bevel gears 33 and 34
from a- shaft» 35 supported in bearings upon
brackets 36, 31 and 38. The shaft 35 is intended
to be power driven in any suitable manner. It
may also be connected by means of bevel gears
39 and All and a train of spur gears 4I to operate
the folding rolls II, I 2, I3 and I4 and the roller
I8 of the stacker belt.
OriY the forward side bar of the frame 20- I se
55
2
2,124,855
cure two or more brackets 42 which are furnished
the construction above described.
with drilled openings parallel with the shafts 26,
however, feed table rollers 64 extending entirely
21 and 28 for the reception of threaded rods 43
having ñatted inner ends that are secured to a
horizontal flange 44 upon a side guide 45. The
rods 43 are adapted to be adjusted in and out
and locked in adjusted position by means of nuts
across the table, following the usual practice in
this regard. These rollers are rotatably mounted
in the side bars of the table frame 20, and may be
46 an-d 41 bearing upon opposite sides of the
brackets 42.
lll
’I’he horizontal flange 44 of the side guide acts
as a retainer for rolling weights arranged above
the rollers 29. In the present instance these
weights are shown in the form of balls 48 which
have sufficient mass to insure good Contact be
> tween the rollers and the sheets of paper thereon,
the balls being mounted in round openings in the
iiange 44 and held thereby from lateral dis
driven by a belt 65 contacting with the lower sur
faces of the rollers, the belt being mounted at
one end upon a pulley 66 secured to a shaft 61,
provided with a spiral gear 68 meshing with a
second spiral gear 69 on a shaft 35’ mounted in
brackets 36’. The shaft 35’ rotates in a direc
tion opposite to the direction of rotation of the
shaft 35, and hence the bevel pinion 39’ is posi
tioned on the side of the bevel pinion 40 which
is opposite to that engaged by the bevel pinion
39 in the first described form of the invention.
The spaces between the rollers 64 are ñlled in
placement while being supported by the rollers
by plates 10, and at the forward end of the
29, either directly or through the sheets of paper
travelling thereover. The balls 48 may be posi
rear end there is a plate 12 having a diagonal I
tioned directly over the axes of the rollers 29 as
shown, or, if preferred, slightly to one side
forward edge
roller 64.
thereof. This relative positioning of the rollers
and balls is maintained for all adjustments of the
`» side guide, owing to the parallelism between the
threaded rods 43 and the axes of the rollers.
Upon the frame 20 of the feed table I mount a
sheet feeder, providing for its adjustment bodily
toward and away from the first roller 29 and
cooperating ball 48. 'I‘he sheet feeder illustrated
is one of common construction and in itself forms
no part of the present invention. Other feeders
may be substituted. In the present case the
feeder mechanism comprises a pair of side frame
members 5U which are grooved upon their inner
sides to embrace the side bars of the frame 20, as
shown in Fig. 3. These frame members 5B are
connected together by a tie bar 5l which is flatted
at its ends and tightly fitted into correspondingly
flatted openings in the frame members 513, this
being for the purpose of preventing rotation of
the bar 5|. The latter carries a pair of circular
blocks 52 which may be secured in various posi
tions of adjustment by means of set screws 53.
In the frame members 5B, above and somewhat
forward of the bar 5i , there is rotatably mounted
a shaft 54, carrying a pair of rubber faced wheels
or discs 55 which are adjustably secure-d upon the
shaft by set screws 56. The drive for the shaft
54 may be conveniently taken off the shaft 35 by
any suitable connections of a character which
will permit their movement lengthwise of the
shaft. In the drawings I have shown for this
purpose a worm 51 which is slidably keyed to the
shaft 35 and is arranged to be moved therealong
by ñngers 58 extending outwardly from one of
the frame members 50 and embracing the ends
of the worm. A worm wheel 59 pinned to one
end of the shaft 54 meshes with the worm 51.
(if)
In it I employ,
An inclined plate 60 is secured at its ends to
the frame members 56, while below and forward
of the plate 50 is a shorter plate 5l only slightly
inclined and terminating in the angle between
the circular blocks 52 and the discs 55. The
plates 60 and 6| together form a support for
sheets indicated at A, which are thereby fanned
out to some extent and hence arranged to the
best advantage for being acted upon by the rub
ber faced discs 55.
The entire sheet feeder is movable bodily along
the frame 26 and may be fastened in any ad
justed position thereon by means of set screws
62 furnished with lock nuts 63.
_
The modified form of the invention illustrated
in Figs. 5, 6 and '1 is similar in most respects to
table there is a triangular plate 1|, while at the
positioned adjacent
the first
The sheet feeder in this case is of the same
general construction as in the ñrst described
form of the invention, and is operated by the
same driving connections.
The method of lock
ing the feeder after adjustment is, however,
slightly different in that the side bars of the
frame 2Q are provided with one or more longi
tudinal slots 13 through which extend bolts 14
carried by the feeder, the nuts on these bolts
beingtightened to hold the feeder in any desired
position.
The operation of the machine is the same re
gardless of which of the two described forms is 35
employed. The circular blocks 52 and the discs
55 are properly positioned upon their supports to
handle in the most eiìîcient manner sheets of the
width of those to be fed. The sheet feeder is
then moved longitudinally of the table to the 40
desired position, that ,is one where sheets of the
length to be delivered by the feeder will be moved
onto the feed table under the control of the sheet
feeder as far as possible before the sheet feeder
lets go, that is to say far enough to engage at
least one and preferably more of the balls 48,
but not so far that the sheet remains under the
control of the sheet feeder when the forward end
is advanced beyond a point where the balls can
act effectively to shift it against the side guide.
The correct position of the feeder for any given
sheet may be determined by trial, and will be
found to vary more or less with the weight, finish
and relative stiffness of the paper stock. For
relatively short sheets the feeder should be as r l.
close aspossible to the feed table, and as previ
ously stated must always be close enough to per
mit at least one ball to take effect before the
feeder lets go.
Sheets that are quite long, in fact longer than
the feed table itself, may be successfully handled
by the use of the machine herein described, pro
vided that the feeder is adjusted far enough to
the rear to let go of the sheets before the for
>ward ends thereof get too close to the delivery ’
end of the table. The invention also has special
utility for the feeding of sheets that are consid
erably wider than they are long. It is difficult
to keep such sheets in proper alignment upon
the ordinary feed table, and I have found also "
that a feed table employing means of the nature
of the balls 48 does not always function well on
such sheets for the reason that when the forward
corner of the sheet encounters the first ball there
is a tendency for the sheet to pivot on the ball
2,124,855
and thus swing far out of alignment. By the
use of the present invention however the feeder
may be adjusted close up to the feed table and
the wide sheet can then be kept under the con
trol of the feeder until one or more balls of the
feed table are riding upon the sheet and ready
to shift it sidewise immediately after the feeder
lets go.
If the length of the sheet will permit it is de
10 sirable to have at least two balls grip the sheet
before it leaves the control of the feeder, for in
that way the lateral movement of the sheet takes
place bodily, in other words all points of the
sheet move sidewise at the same speed. By ad
15 justably positioning the feeder at precisely the
correct distance from the feed table, I am en
3
mounted in said side guide and supported by
said rollers, whereby the travel of the sheets
themselves rotates the Weights, and a sheet feeder
for delivering sheets to said table in a direction
parallel to said side guide, said sheet feeder being
adjustable toward and away from said table and
adapted to release control of each sheet immedi
ately after it is engaged by the first of said
rolling weights.
2. In a paper handling machine, a feed table
having a side guide, said table comprising diag
onally arranged driven rollers adapted to cause
the travel of sheets thereon longitudinally and
towards said side guide, said guide having open
ings therein, rolling weights mounted in said
openings above said rollers for holding the sheets
in engagement with the rollers, and a sheet feeder
for delivering sheets to said table in the direc
tion of travel of sheets thereon, said sheet feeder
being adjustable toward and away from said zo
abled to secure the quickest possible sheet align
ing action and thereby to employ a feed table
of minimum length.
After the adjustments for any particular run
20
are properly made, the operator proceeds in the ' table and adapted to release control of each sheet
usual manner; that is a stack of sheets A is laid immediately after it is engaged by the first of
upon the plates 6l), 6I, the sheets being thereby said rolling weights.
3. In a paper handling machine, a feed table
fanned out and fed by gravity into the angle
25 between the circular blocks 52 and rotating discs~ having a side guide, said table comprising diag
55, resulting in the movement of the sheets one onally arranged driven feeding means adapted
at a time by the discs 55 from the stack onto the
feed table. Here the rotating rollers 29 or 64,
as the case may be, engage the under surfaces
30 of the sheets tending to cause them to travel
forward and sidewise simultaneously, and the
balls 48 above the sheets render the action the
the rollers quite positive; in other Words they
reduce slippage. As before stated, the feeder is
35 always adjusted so that at least the first ball 48
is engaged by the sheet before it leaves the
feeder, and hence the balls take effect immedi
ately upon the release of the sheet by the feeder.
In the drawings the feeder is illustrated in its
40 position of adjustment which is closest to- the
feed table, this being the position used when the
sheets to be fed are short. When the sheets have
considerable length, the sheet feeder will be ad
justed backwardly a considerable distance and
45 the forward edges of the sheet will travel over
the ñat surface of the table for some distance
before engaging with the first ball and its coop
erating roller.
While in the foregoing description and ac
50 companying drawings I have employed a rather
detailed disclosure, I desire it to be understood
that such disclosure is primarily for the purpose
of fully illustrating the invention, and is not to
be considered as a limitation upon its scope. In
55 this connection it may be remarked that the
use of a mechanical feeder is not essential to the
invention in some of its aspects, as certain fea
tures of the invention may be practiced in con
nection with hand feeding in the well-known
60 manner.
I-Iaving thus described my invention, what I
claim is:
l. In a paper handling machine, a feed table
having a side guide, said table comprising diag
65 onally arranged driven rollers adapted to cause
travel of sheets thereon longitudinally and to
wards said side guide, a series of rolling weights
to cause travel of sheets thereon longitudinally
and towards said side guide, a series of rolling
weights supported by said feeding means and
adapted to be rotated by the travel of the sheets Ú
thereon for holding the sheets in engagement
with the feeding means, and a sheet feeder for
delivering sheets to said table in a direction par
allel to said side guide, the feeder being adjusta
ble toward and away from the said diagonally 35
arranged feeding means, whereby the distance
between the feeder and the first of said rolling
weights may be varied.
4. In a paper handling machine, a feed table
having a side guide, said table comprising diag
onally arranged driven rollers adapted to cause
the travel of sheets thereon longitudinally and
towards said side guide, said side guide having
a horizontal flange overlying the ends of said
rollers, said flange having openings therethrough
above said rollers, rolling weights mounted in
said openings for holding the sheets in engage
ment with the rollers, and a sheet feeder for
delivering sheets to said table in a direction par
allel to the side guide, said sheet feeder being
adjustable toward and away from said table and
adapted to release control of each sheet immedi
ately after it is engaged by the first of said rolling
weights.
'5. In a paper handling machine, a feed table
having a side guide, said table comprising diag
onally arranged driven rollers adapted to cause
sheets travelling thereon to move with their side
edges in engagement with said guide, said guide
having openings therein, rolling weights mounted
in said openings above said rollers for holding the
sheets in engagement with the rollers, and a sheet
feeder for delivering sheets to- said table in a
direction parallel to said guide, said feeder being
adjustable toward and away from the first roller A
and its cooperating rolling weight.
REUBEN HITCHCOCK
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