Improvements in and relating to Looping Arrangements for Printing Machines, and for use in connection with Means for Stitching and Stapling.
Year: 1898

page_text: Date of Application, 15th Mar., 1898
Complete Specification Left, 9th Jan., 1899-Accepted, 25th Feb., 1899
Improvements in and relating to Looping Arrangements for Printing
Machines, and for use in connection with Means for Stitching and
Stapling.
I, HENRY ALEXANDER WISE WOOD, of the Campbell Printing Press and Manu-
facturing Company, of the City, County, and State of New York, United States
of America, do hereby declare the nature of this invention to be as follows:-
My invention relates to looping mechanism for use in printing machines, and
has more particular reference to the combination of such mechanism with means
for stitching and stapling the product of such machines.
My invention comprises a looping arrangement for the purpose of rendering a
part of the web or of the collected sheets stationary, for the purpose of printing
stapling, stitching, or otherwise operating thereupon, and means combined with
such an arrangement consisting of assembling or collecting mechanism and a
stationary wire stapling device so that the assembled or collected product may be
held momentarily stationary while passing through the stationary wire stapling
device by the operation of the looping arrangement.
My invention consists of a looping arrangement in which the feeding in and
feeding out loopers are provided as rollers of eccentric form, or as rollers eccentri-
cally disposed upon an axis or shaft, and so disposed and operated in relation the
one to the other that the web or its equivalent is taken up on one side and let
out upon the other, so as to maintain the intermediate part of the web stationary
for the purpose of permitting of an impression being taken upon the web or of the
stapling or stitching or other operation thereupon. My invention further consists
in combining such a looping arrangement with assembling or collecting mechanism
and a stationary wire stapling device, or stitching device, so that the web or
collected sheets may be held momentarily stationary for the operation of the wire
stapling device, and my invention further consists of other features which are
hereinafter described as applied.
In carrying the first part of my invention into effect I provide a looping arrange-
ment consisting of a feeding-in and feeding-out looper, each of the same eccentric
form, and of such a shape and size as to take up the required amount of the web,
such loopers being preferably mounted within an adjustable carriage, so as to
permit of the adjustment of the web between the guide rollers of
the impression cylinder, or between the guide or carrying rollers
which carry that part of the web that is required to be held stationary, such
adjustable carriage being provided with an index in order that the adjustment
can be made at sight, while the loopers are rotated by means of a common gear
or otherwise so that their rotation may be synchronous. I may however provide
the feeding-in and feeding-out loopers as rollers eccentrically disposed in relation
to an axis about which they rotate.
In carrying the second part of my invention into effect in its application to the

page_text: stapling or other operation upon collected sheets I provide means for severing
the web that issues from the printing press into sheets, means for then collecting
the sheets, means so that the collected sheets may be carried forward through a
stationary wire stapling device, and means as hereafter described for momentarily
stopping the collected sheets as they pass through the wire stapling device so that
the same may properly act. For the purpose of momentarily stopping the collected
sheets I provide an upper and lower series of looping tapes, each of which pass
about the feeding-in and feeding-out loopers, and around the guide or carrying
rollers which serve to carry that part of the web that is to be main-
tained momentarily stationary; the lower series of tapes passing around a roller
adjacent to the collector which may be provided of any suitable form, thence
passing about the first looper, thence around the first guide or carrying roller,
passing about the second guide or carrying roller, thence around the second
looper, passing thence around a further roller adjacent to the folding mechanism
and returning, the upper series of tapes likewise passing around a guide roller
placed adjacent to the collector, thence about the first guide or carrying roller,
the second guide or carrying roller and the second looper, and returning and
passing round suitably disposed guide rollers. It will be understood that the
collected sheets pass from the collector between the series of tapes and around the
first looper, and are momentarily held stationary between the guide or carrying
rollers by the action of the looping mechanism upon the upper and lower series
of looping tapes, the wire stapling, stitching or other device being capable of
adjustment so as to operate in any desired position upon the collected sheets by
being provided as adjustable, or the same effect may be obtained by arranging
the loopers as adjustable, as herein before described.
I do not limit my invention to the adoption of the means of looping the web
or sheet carrving looping tapes as hereinbefore described, for I may employ a
looping arrangement consisting of cam operated levers carrying transverse arms at
the extremities of which the loopers are held, such transverse arms being preferably
slotted so as to permit of the adjustment of the transverse bar laterally upon and
in relation to the cam operated lever.
I may also provide for the looping of the web or sheet carrying tapes by means
of a vibrating arm carrying the loopers at each end and being operated by means of
a ram.
It will be understood that the product after passing through the stapling or
stitching device may be carried to a folding machine, and preferably first folded
in the line of staples inserted by the stationary wire stapling device, while the
mechanism is preferably arranged so that a cover sheet can be fed to the collected
product so that the same may be secured and fastened thereto.
In carrying the second part of my invention into effect according to another
modification in its application to the stapling or other operation upon a plurality
of associated webs, I lead the webs, after association and preferably after being
associated with a super-imposed cover web through a looping device such as herein-
before described so that the web may be caused to momentarily stop and advance,
without checking the uniform advance of the associated webs as a whole. A
convenient mechanism for effecting the momentary stoppage of the web during
stapling or other operation consists as before described of two loopers around which
the associated webs may be looped in opposite directions whereby when the loopers
are vibrated or operated that section of associated webs between the loopers will
alternately advance and stand still. The arrangement of such mechanism differs
in no respect from that hereinbefore described as applied for operating upon
collected sheets, the difference being that in the present case looping tapes are
dispensed with, and the loops formed by the web alone.
The stationary stapling device is arranged to act upon the associated webs
between the loopers so that the staples will be inserted in the associated webs 5
while they are held momentarily stationary. After passing from this mechanism
the associated webs may be folded, cut and delivered in the ordinary way, and it is

page_text: preferred to give the first fold to the associated and stapled webs on the line on
which the staples are inserted.
In some cases I prefer to provide a wide web on the printing machine and then
slit such web into a number of narrow webs, associating or bringing the narrow
webs one over the other and then passing the associated narrow webs through the
looping and stapling devices as before described. In such a case a separate narrow
width web may be used to form a cover, and such web may be carried from the
same impression cylinder diverted around a turner bar and passed around suitable
guide roller or rollers through a pasting device, the web being then caused to
pass between feeding rollers together with the associated webs and thence to be
further folded or cut and delivered. By such means the cover may be pasted
upon the associated sheets after stapling; but it is obvious that this cover web may
be stapled to the other webs instead of being pasted after the other webs have
been stapled together.
In some cases I may employ a plurality of stationary stapling devices between
the two loopers, so that as the associated webs are momentarily held stationary
a plurality of staples will be inserted therein so obviating the necessity of the
rapid operation of a single stapling device that would be otherwise necessary.
Each such stapling device may be operated by means of eccentrics or by cams
independently from shafts rotating at the same speed, or such stapling devices
may be operated by means of eccentrics provided upon the same shaft or by means
of a single cam.
In carrying the second part of my invention into effect in its application to the
stapling or other operation upon collected sheets, I may dispense with the looping
arrangement for effecting the periodic stoppage of the collected sheets, and arrange
a series of gates or stops to intercept the collected sheets on their progress upon
tapes that conduct them to the folder or to be otherwise operated upon, such series
of gates or stops being arranged upon a rod transversely disposed to the tapes
and timed to fall out of contact with the sheets after the stapling device has
operated to insert staples in the collected sheets, the movement being effected by
means of a connecting link operated from a cam or eccentric. The series of gates
or stops may be provided so as to be capable of longitudinal adjustment to adjust
the sheet in the required position beneath the stapling device or devices, and
two or more series of gates may be provided so as to arrest the collected sheets at
various stages so that the stapling device may operate at each such momentary
stoppage.
The form of wire stapling device of course is not material to the invention.
DEAL
1000
Improvements in and relating to Looping Arrangements for Printing
Machines, and for use in connection with Means for Stitching and
Stapling.
I, HENRY ALEXANDER WISE WOOD, of the Campbell Printing Press and Manu
facturing Company, of the City, County, and State of New York, United States
of America, Engineer, do hereby declare the nature of this invention and in what

page_text: manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
My invention consists of a looping arrangement in which the feeding in and
feeding out loopers are provided as rollers of eccentric form, or as rollers eccentri-
cally disposed upon an axis or shaft, and so disposed and operated in relation the
one to the other that the web or its equivalent is taken up on one side and let
out upon the other, so as to maintain the intermediate part of the web stationary
for the purpose of permitting of an impression being taken upon the web or of the
stapling or stitching or other operation thereupon. My invention further consists
in combining such a looping arrangement with assembling or collecting mechanism
and a stationary wire stapling device, or stitching device, so that the web or
collected sheets may be held momentarily stationary for the operation of the wire
stapling device, and my invention further consists of other features which are
hereinafter described as applied.
In carrying the first part of my invention into effect, I provide a looping arrange-
ment consisting of a feeding-in and feeding-out looper, each of the same eccentric
form, and of such a shape and size as to take up the required amount of the web,
such loopers being preferably mounted within an adjustable carriage, so as to
permit of the adjustment of the web between the guide or carrying rollers
which carry that part of the web that is required to be held stationary, such
adjustable carriage being provided with an index in order that the adjustment
can be made at sight, while the loopers are rotated by means of a common gear
or otherwise so that their rotation may be synchronous. I may however provide
the feeding-in and feeding-out loopers as rollers eccentrically disposed in relation
to an axis about which they rotate.
In carrying the second part of my invention into effect in its application to the
stapling or other operation upon collected sheets I provide means for severing
the web that issues from the printing press into sheets, means for then collecting
the sheets, means so that the collected sheets may be carried forward through a
stationary wire stapling device, and means as hereafter described for momentarily
stopping the collected sheets as they pass through the wire stapling device so that
the same mav properly act. For the purpose of momentarily stopping the collected
sheets I provide an upper and lower series of looping tapes, each of which pass
about the feeding-in and feeding-out loopers, and around the guide or carrying
rollers which serve to carry that part of the sheet that is to be main-
tained momentarily stationary; the lower series of tapes passing around a roller
adjacent to the collector which may be provided of any suitable form, thence
passing about the first looper, thence around the first guide or carrying roller,
passing about the second guide or carrying roller, thence around the second
looper, passing thence around a further roller adjacent to the folding mechanism
and returning, the upper series of tapes likewise passing around a guide roller
placed adjacent to the collector, thence about the first looper, the first guide or
carrying roller, the second guide or carrying roller and the second looper, and
returning and passing round suitably disposed guide rollers. It will be understood
that the collected sheets pass from the collector between the series of tapes and
around the first looper, and are momentarily held stationary between the guide
or carrying rollers by the action of the looping mechanism upon the upper and
lower series of looping tapes.
It will be understood that the product after passing through the stapling or
stitching device may be carried to a folding machine, and preferably first folded
in the line of staples inserted by the stationary wire stapling device, while the
mechanism is preferably arranged so that a cover sheet can be fed to the collected
product so that the same may be secured and fastened thereto.
In carrving the second part of my invention into effect according to
its application to the stapling or other operation upon a plurality
of associated webs, I lead the webs, after association and preferably after being

page_text: associated with a super-imposed cover web through a looping device such as herein-
before described so that the webs may be caused to momentarily stop and advance,
without checking the uniform advance of the associated webs as a whole. A
convenient mechanism for effecting the momentary stoppage of the web during
stapling or other operation consists as before described of two loopers around which
the associated webs may be looped, whereby when the loopers are
operated that section of associated webs between the loopers will
alternately advance and stand still. The arrangement of such mechanism differs
in no respect from that hereinbefore described as applied for operating upon
collected sheets, the difference being that in the present case looping tapes are
dispensed with, and the loops are formed by the webs alone.
The stationary stapling device is arranged to act upon the associated webs
between the loopers so that the staples will be inserted in the associated webs
while they are held momentarily stationary. After passing from this mechanism
the associated webs may be folded, cut and delivered in the ordinary way, and it is
preferred to give the first fold to the associated and stapled webs on the line on
which the staples are inserted.
In some cases I prefer to print a wide web on the printing machine and then
slit such web into a number of narrow webs, associating or bringing the narrow
webs one over the other and then passing the associated narrow webs through the
looping and stapling devices as before described. In such a case a separate narrow
width web may be used to form a cover, and such web may be carried from the
same impression cylinder, diverted around a turner bar and passed around suitable
guide roller or rollers through a pasting device, the web being then caused to
pass between feeding rollers together with the associated webs and thence to be
further folded or cut and delivered. By such means the cover may be pasted
upon the associated webs after stapling; but it is obvious that this cover web may
be stapled to the other webs instead of being pasted after the other webs have
been stapled together.
In some cases I may employ a plurality of stationary stapling devices between
the two loopers, so that as the associated webs are momentarily held stationary
a plurality of staples will be inserted therein so obviating the necessity of the
rapid operation of a single stapling device that would be otherwise necessary.
Each such stapling device may be operated by means of eccentrics or by cams
independently from shafts rotating at the same speed.
The form of wire stapling device of course is not material to the invention.
Referring now to the accompanying four sheets of drawings,
Fig. 1 is a partial sectional elevation showing the first application of my
improved looping arrangement.
Fig. 1 is a view showing how the loopers may be made as rollers eccentrically
disposed.
Fig. 2 is a pariial elevation at right angles to Fig. 1.
Fig. 3 is a sectional view illustrating one application of my invention where
one looper is used.
Fig. 4 is a view similar to Fig. 3, illustrating the use of two loopers.
Fig. 5 is a sectional view illustrating the second part of my invention when
arranged for acting upon collected sheets.
Fig. 6 is a sectional view illustrating the application of the second part of my
invention in its application to stapling associated webs.
Fig. 7 is a partial plan view, and
Fig. 8 a sectional elevation illustrating the last described application of the
invention to a printing machine which acts on a wide web.
Fig. 9 is a partial sectional elevation illustrating the employment of a plurality
of stapling devices for binding the associated webs together.
Referring first to Figs. 1 and 2, 10 represents a feeding-in drum, co-acting with
which is a set of tapes 11 passing around suitable tape pulleys. The web w drawn
from any suitable source is continuously forwarded by this drum.

page_text: The web then passes around a stationary roll 12, then around a feeding-in
looper 13, then around a roll 14 to any suitable printing, stapling, stitching, or
other device which is to act on the web.
The web returns from such device and passes around a roll 15, then around a
feeding-out looper 16, around a roll 17 to a feeding-out drum 18, co-acting with
which is a set of tapes 19.
The loopers 13 and 16 are mounted in an adjustable carriage which consists of
vertically adjustable frames 20-20.
Each frame has secured thereto a rack 21, engaging which are pinions 22
mounted on a common shaft which can be turned by a handle 23.
A suitable index 24 is attached to one of the frames.
25 designates a gear which is driven from any suitable part of the machine,
and which is arranged on the end of a shaft 26 which has key-ways cut therein.
Engaging these key-ways are bevel-gears 27 which have long hubs fitting in
bearings 28 projecting from one frame 20.
The shafts of the loopers are carried through the frame 20, and have gears 29
on their ends engaging the gears 27.
By this means the frames can be adjusted up and down and the loopers still
continuously rotated in the same direction.
This adjustment up and down will adjust the position of the web in the printing,
stapling or stitching machine, so that the point at which the same acts upon the
web can be varied.
The feeding-in and feeding-out loopers 13 and 16, as before described, are made
as rollers of eccentric or cam-shape form, and by their rotation in combination
with the continuous movement imparted to the web by the feeding-in and feeding-
out drums 10 and 18 will impart an intermittent movement to the web between the
rolls 14 and 15.
For example: The feeding-in looper 13 is shown in Fig. 1 as just commencing
to take up the web or elongate the loop of web between rolls 12 and 14, and in
the particular construction shown, is so arranged that during 180 degrees of its
rotation it will take up all the web that comes in over the roll 12, so that during
this part of its rotation the web beyond roll 14 will have no movement.
During this particular part of the rotation of the feeding-in looper, the feeding-
out looper 14 will turn 180 degrees and will let out or shorten the loop of web
between the rolls 15 and 17, and will thus supply the web to the feeding-cut drum 18,
so that the web can continuously pass out of the mechanism.
During the other 180 degrees rotation of the loopers, the web between the
rolls 14 and 15 will be moved at practically double its continuous velocity, for
during this time the feeding-in looper 133 will allow the loop between rolls 12 and 14
to shorten and the feeding-out loopers 16 will lengthen the loop between the
rolls 15 and 17, and this action will of course take place without effecting the
continuous movement of the web about the feeding-in and feeding-out drums 10
and 18.
By this action, the web as a whole, will have a continuous movement, but that
part of the web between the rolls 14 and 15 will have an intermittent movement,
or the web between said rolls will stand stationary for one-half of the rotation of
the loopers and move forward at double the speed of the web as a whole during the
other half of the rotation of the loopers.
It will be noted that the loopers turn in such direction so that their peripheries
will move with or comb the web. This is a very desirable arrangement, because
with the same there is practically no friction or slip between the web and loopers.
In Fig. 1 I have shown a rotary looper as made in the form of a roller 30
eccentrically disposed upon its shaft 31. This form may be used in some cases.
The previously described mechanism constitutes a very advantageous device for
the purpose, as the same is entirely rotary in its action, and for that reason may
be driven at high speed.

page_text: In Fig. 3 I have shown a modified form of construction. The web in this
construction is drawn continuously from the roll W by means of the usual advanc-
ing rolls 32-33-34, which may be continuously driven by gearing as is common.
for this purpose.
The web then passes around the under-side of a rotary looper 35, and then to a
roller 36, from the roller 36 the web may rass to the printing, stapling or stitching
device and back therefrom by the rolls 37 and 38. The web then passes over the
top of the rotary looper 35 and is continuously delivered from the mechanism by
the common feeding-out rolls 39-40-41.
This construction operates substantially as that before described, except that
one looner is used, which by its rotation takes up the loop of web between the
rolls 34 and 36, and lets out the loop of web between the rolls 38 and 39 and
vice versa.
The looper 35 may be counter-balanced as shown, so that the center
of gravity thereof will coincide with its axis of rotation.
In Fig. 4 is shown a modification of the device shown in Fig. 3 in which two
loopers 35 and 350 of the construction shown in Fig. 3 are used to control the
loops of web.
Suitable brakes may be provided in the devices shown in Figs. 3 and 4 to co-
operate with the rolls 36 and 38 to bite on the web when the same is to be held
stationary between such rolls.
In Fig. 5 I have shown my invention carried into effect in its application to
stapling or other operation upon collected sheets.
In this construction the web w as it issues from the printing press is cut into
sheets by means of cutting cylinders 42 and 43 and the sheets are pulled from the
end of the web by the usual speeding tapes 44 and 45.
From these tapes the sheets are directed by guides 46 to a suitable collecting
cylinder 47 which is arranged to collect as many sheets as desired.
The collected bundle of sheets is stripped from the collecting cylinder
by suitable strippers 48, and is directed thereby into the embrace of a
lower and upper series of looping tapes 49 and 50.
The lower series of tapes 49 passes around a roller 51 adjacent to the collector,
then around the first looper 52, thence around the first guide or carrying
roller 53, thence to a second guide or carrying roller 54, thence around the second
looper 55, thence around a roller 56 and returns by suitable rolls 57 and 58.
The upper series of tapes likewise passes around a guide roller 59 adjacent to the
collector, thence about the first looper 52, the first guide or carrying roller 53,
the second guide or carrying roller 54, the second looper 55, and returning passes
around suitably disposed rollers 60-60.
The loopers 52 and 55 shown in this construction are continuously rotated in
the direction indicated, and by this arrangement the bundle of collected sheets
will be momentarily held stationary between the rolls 53 and 54 between the
upper and lower series of tapes
Between these rolls 53 and 54 are arranged one or more stapling or stitching
devices SS, those shown in this figure as being of substantially the construction
shown and described in detail in Letters Patent No. 18,741 of 1897, dated Aug. 12,
1897.
After the bundle of sheets has been stapled in this manner, the same is carried
by tapes 61 out under a set of folding rolls 62, into which the same is tucked by
a folding-blade 63, so that the fold-line coincides with the line of staples inserted
by the stapling devices.
A cover-sheet may be fed to the collected product from a feed-board F, so that
the same may be secured and fastened thereto, the feed-board F having any of the
usual appurtenances so that an operator standing thereby can feed the cover-
sheets in on top of the collected sheets at the proper time.
In Fig. 6 I have shown how the second part of my invention is carried into
effect according to its application to stapling or other operation upon a plurality
of the associated webs.

page_text: In this construction two web printing machines P-P are provided, each con-
sisting of two printing-couples 64 and 65, 66 and 67 arranged in any of the well
understood ways.
The lower printing machine takes its web w from the web roll W, and the
upper printing machine takes its web w¹ from the web roll W
The two webs w¹ and w¹ are associated by means of rolls 68 and 69, and the
associated webs are then led through a rotary looping device, combined with which
is a stapling device of substantially the construction as shown and described in
Fig. 5, except that in this present case looping tapes are dispensed with and the
loops are formed by the webs alone.
By this means the webs will be caused to momentarily stop and advance between
the rolls 53 and 54 without checking the uniform advance of the associated webs
as a whole, whereby the stapling device may act.
A cover-web may be led to the associated webs by means of rolls 70 and 71.
The associated webs may be folded, cut-and delivered by any of the ordinary
mechanisms G preferably so arranged as to give the first fold to the associated and
stapled webs on the line on which the staples are inserted.
In Figs. 7 and 8 I have shown a printing machine 1" adapted to print a wide
webe, which wide web may be slit by suitable slitters 72 into a plurality of narrow
webs w, w w³.
These narrow webs are associated and brought together by means of suitable
turners 73 and are then passed through looping and stapling devices as before
described.
In this case a separate narrow width web r¹ may be printed for a cover, and may
be led by a suitable turner 74 and passed around suitable guide rollers 75 and 76
through a pasting device B and united or applied to the top of the associated
webs.
It is obvious that this cover web, however, may be led by rolls 77 and 78 so as
to be applied to the top of the associated webs and stapled thereto without pasting.
In Fig. 9 I have shown how a plurality of stationary stapling devices S-S-S
may be arranged between the two loopers, so that as the associated webs are
momentarily held stationary, a plurality of staples will be inserted therein so
obviating the necessity of the rapid operation of a single stapling device that
would otherwise be necessary.
Each stapling device may be operated by means of an eccentric or cam indepen-
dently by shafts rotating at the same speed.
The form of wire stapling device or stitching device or printing device may be
varied.
The invention in its broadest sense relates to the rotary looper or loopers which
may be applied as desired for use, as the manipulating device for any kind of
printing machine, such as platen or cylinder machines, or as the manipulating
device for so handling a web or webs or sheets that any of the before described
operations can be performed.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The rotary looping arrangements described in the foregoing specification
and illustrated in the accompanying drawings.
2. A looping arrangement in which the feeding-in and feeding-out loopers are
provided as rollers of eccentric form, substantially as described.
3. A looping arrangement in which the feeding-in and feeding-out loopers are
provided as rollers of eccentric form, and are so disposed and operated in relation
the one to the other, that the web or its equivalent is taken up on one side and
let out on the other, so as to cause the intermediate part to alternately stand
stationary and advance, substantially as described,

page_text: 4. A looping arrangement having rotary feeding-in and feeding-out loopers
combined with a stapling or stitching device, substantially as described.
5. An arrangement of loopers consisting of a feeding-in and feeding-out looper
of the same eccentric form, arranged so that the web or its equivalent will be
looped around the same, and gearing for rotating the loopers, substantially as
described.
6. A looping arrangement consisting of a feeding-in and feeding-out looper
mounted within an adjustable carriage, said loopers being so arranged that a web
may be led around the same, and gearing for rotating the loopers synchronously,
substantially as described
7. A looping arrangement consisting of rotary feeding-in and feeding-out
loopers around which the web or its equivalent is looped, and gearing for rotating
the loopers so that they will coax or comb the web or its equivalent in the proper
direction, substantially as described.
8. In a web manipulating mechanism, the combination of guides for supporting
a web of paper, a looper of substantially the width of the paper arranged between
said guides, and means for completely rotating said looper whereby the looper
will act to alternately take up and let out the web of paper, substantially as
described.
9. The combination in a manipulating mechanism for the purposes set forth,
means for continuously feeding forward the material, guides for leading the
material to form a loop, a looper interposed in this loop, and means for rotating
the looper to control the amount of material in the loop, substantially as described.
10. The combination of means as guides or rollers for looping material to form
a loop, a member interposed in this loop, means for rotating the same, and means
for continuously moving the material arranged in the path thereof beyond the
rotary looper, substantially as described.
11. The combination of means for continuously feeding in and feeding out
material, two loopers around which the material is looped, and means for rotating
these loopers so that the material intermediate the two loopers will alternately
stand still and advance, substantially as described.
12. The application of two rotary loopers to a double set of tapes, arranged so that
collected sheets may be carried forward through a stapling or stitching device,
substantially as described.
13. The combination of two rotary loopers, two sets of tapes controlled thereby,
a collector passing bunches of collected sheets to said double set of tapes, and wire
stapling or stitching mechanism set to act on the collected sheets between the two
loopers, and while they are in the embrace of the double set of tapes, substantially
as described.
14. The application of two rotary loopers to control a plurality of associated
webs, substantially as described.
15. The application of two rotary loopers to control the movement of a plurality
of associated webs and a cover web, substantially as described.
1000
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.