Improvements in' Machinery for Manufacturing Cardboard Tubular Cases.
Year: 1896

page_text: Date of Application, 25th Aug., 1896-Accepted, 7th Nov., 1896
COMPLETE SPECIFICATION.
Improvements in' Machinery for Manufacturing Cardboard Tubular
Cases.
I HARVEY SPERRY MUNSON of 612 Whituey Avenue, New Haven in the
County of New Haven and State of Connecticut, United States of America,
Mechanical Engineer, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained.
in and by the following statement:-
The first part of the present invention relates to mechanism for scoring and
folding box tubes, that is, mechanism for operating upon sheets of cardboard or.
stiff paper to properly score the same, and then form them into flat tubes, which
tubes, when opened out, are rectangular in cross section, and, when severed into
proper lengths, form the sheaths or casings for what are known in the trade as
slide boxes, and particularly that class of boxes which are designed for containing
cigarettes, matches, and other similar articles. Machines of this general class
have been heretofore constructed which have been adapted to operate upon
material in the form of a continuous web, and, when operating upon the material
in this condition, such machines have been practically successful, owing to the
fact that the material can be much more easily handled by the machine in the
form of a continuous wob than in the form of detached sheets. In providing boxes
for cigarettes and for other similar purposes, the demands of the trade bave
become such that it is necessary to operate upon material which has been previously
printed by lithograph process, and as it is not feasible, by any means known at the
present time, to print lithographically upon cardboard or paper in the form of
a web, it has become necessary to provide means by which such cardboard or
paper in the form of detached and comparatively short sheets can be converted
into tubes suitable for sheaths or casings of boxings in an expeditious and economical
manner. Where the material for forming the tube is supplied to the machine in
the form of a continuous web, the feeding of the material through the tubing
mechanism during the tube-forming operation, cau readily be accomplished by
feeding mechanism which operates upon the completed tube, and acts to draw the
web through the creasing or scoring and tubing mechanism. In operating upon
detached sheets, however, the feeding mechanism which operates upon the
completed tube is not adequate for this purpose; because the operations of scoring
the material, and folding it into tube form, are necessarily performed upon the
leading end of each sheet before such leading end can pass into the control of
feeding mechanism which acts upon the material after it has been converted into a
tube. One of the principal features of this part of the present invention relates to
the means for feeding the sheet through the tubing mechanism during the operation
of folding it into tube form, us will be hereinafter explained. Other features of
the invention, relating to details in construction and the general organization of
the scoring and tubing mechanism, will also be hereinafter fully described and
ointed out.
The second part of the present invention relates to mechanism for performing
he operation of re-folding the seams, bends or foldings forining the blind seams
niting the top, bottom, and sides of the tubes, as formed in the tubing mechanism.
n the ordinary course of their nauufacture, whether performed by hand or by
achinery, the flat. blanks of paper, cardboard, or similar suitable. material, are
list properly creased upon their lines of ultimate fold, and then have their outside

page_text: or free edges united to each otber by a lapped and glued seam, which converts tho
blank into a collapsed tube. From this manipulation, and in this condition, it will
be obvious that the material has only been folded or bent upon itself along the line
of two of the seams, and that these two seams will have been pressed flatwise to
the greatest degree, thus leaving the other two seams necessary to the formation of
a rectangular tube, simply creased, but not folded. In manipulating this collapsed
tube, so as to convert it into a rectangular tube for the reception of its contents,
the non-folded seams will exert the greater resistance, for the reason that they
will then receive their first folding operation, and consequently, where such box
tubes are packed with their contents by the aid of mechanical device, this
resistance in the non-folded seams presents a difficulty in the operation which
subjects the manufacturing packers to additional cost in the delay, and otherwise,
during the packing manipulation. If, however, during the manufacture of the
tube, all of its uniting seans are once folder or bent upon themselves, they will be
equally susceptible to such subsequent manipulation as must ultimately be given to
them in converting the Hattened tube into a hollow tube for the reception of
contents, and hence, when so treated, they will be capable of easy manipulation
during the packing operation. This manipulation of the uniting seans is a
refolding operation of the tube upon its crensed lines or bliud seams, which
imparts to all of its four seams the same manipulation, that is, in forming the flat
tube, the material is bent upon itself along the line of two of its seans, and then,
through the refolding operation upon the tube, the material is so manipulated as to
fold or bend it upon itself along the line of its two remaining seams. Thus, each
seam is bent, weakened, or manipulated in the same manner, whence it results thutt
all of the parts of the tube may be easily moved under uniform resistance in
transforming it from a flat into a tubular form, thus capacitating the tube to be
dealt with by mechanisms or by hand in the packing operation, without any of its
Beams offering undue resistance thereto.
The third part of the present invention relates to cutting and delivery
mechanisms designed particularly to operate upon the tubes while in a flat
condition formed by the scoring and tubing mechanism constituting the first part
of the present invention, as such tubes leave said scoring and tubing mechanism,
or as they leave the refolding mechanism constituting the second part of the
invention, if such refolding mochanism be employed in conjunction with said
scoring and tubing mechanism.
The several features of the present invention are illustrated in the accompanying
drawings, in which
Figures 1-16 illustrate the construction and operation of the scoring and tube-
forming mechanism constituting the first part of the present invention.
Figure 1 is a plan view, and Figure 2 à side elevation of such scoring and tube-
forming mechanism.
Figure 8 is a longitudinal vertical section of the same.
Figure 4 is an end view of the machine, looking from the left of Figure 1.
Figures 5 & 6 are vertical cross sections taken respectively on the lines 5 and 6
of Figure 1.
Figure 7 is an end view of the machine, looking from the right of Figure 1.
Figure 8 is a plan viow, and Figure 9 an outside edge view, of one of the folding
guides.
Figures 10 and 11 are end views of the same, looking respectively from the left
and right of Figure 8.
Figures 12-16 are views illustrating the operation of the machine upon a sheet
of card-board in forming the same into a tube.
Figures 17-27 illustrate the construction and operation of the tube refolding
mechanism constituting the second part of tho presont invention.
Figure 17 is a plan view, aud Figure 18 à side elevation, of such refolding
mechanism.
Figures 19, 20, 21, and 22, are cross sectious thereof, taken respectively on the

page_text: which permit the two rolls to come into biting contact, to nip and advance the
sheet as it passes forward beneath the former. Located a short distance in
advance of the rolls F, are a second pair of feeding rolls or disks G, G, which are
also geared together, and are driven through an intermediate from the gear upon
the shaft of one of the rolls F. These rolls or disks, the same as the rolls F,
project through openings in the former and the bed plate, so as to come into biting
contact, to nip the sheet and advance it beneath the former. Located in advance
of the rolls F, upon. opposite sides of the former, are a pair of adjustable folding
guides H, I, which act upon the opposite edges of the sheet which project beyond
the sides of the former, & operate to fold over said edges, so as to cause them to
overlap on the top of the former, and be united by the line of paste applied by the
disk c. The folding guide H is so formed that, when the edge of the sheet upon
which that guide nets first comes into contact with the guide, it acts to fold the
edge upward to about at right angles to the former, after which the edge of the
sheet thus folded up remains in a substantially vertical position until it has passed
the feeding disk G, and arrived at a position near the advance end of the guide,
when the guide acts to complete the folding over of that edge of the sheet, to bring
it down flat on to the former, and on top of the opposite edge of the sheet
which has been previously folded over. The folding guide 1, upon the opposite
side of the form, is regularly curved as indicated in Figures 8 to 11, and operates
to gradually fold over the edge of the sheet projecting from that side of the
former until it is brought down flat upon the former, which takes place just before
the completion of the folding over of the opposite edge by the guide H as just
explained.
After the folding over of the opposite edges of the sheet has been thus
accomplished by the side guides while the sheet is being advanced by the feeding
disks F, G, the advance end of the sheet, now converted into tubular form, enters
the bite of a pair of feeding and pressing rolls K, by which the pasted seam is
pressed and set, and the completed tube delivered from the machine. The rolls K
are geared together, and are driven through intermediates from the gear upon tho
shaft of one of the rolls G.
The operation of the mechanism thus described will now be explained more in
detail, reference being had to Figures 12 to 16. The sheet of paper or card-
board M, of a suitable width for forming a tube of the desired dimensions, and
printed upon its under-side with any suitable matter, such as is required by the
trade for this class of goods, is fed from a feeding table located at the rear of the
machine, so as to be presented in proper position to the bite of the rolls A, B.
For the purpose of trimming one edge of the sbeat, in case it should not be of
exactly the proper width, one of the scoring or creasing rolls may be provided
with a cutting blade 2, which shears across the end of the other roll, so as to trim
the edge of the sheet as it passes between the two rolls. As the sheet passes
between the rolls A, B, it is scored or creased upon the lines 4, 5, 6, 7, by the
respective blades b, thereby defining the lines upon which the sheet is to be
eventually folded in producing the tubular box covers or sheaths. Emerging from
between the rolls A, B, the sheet is advanced by said rolls beneath the former D,
and between the lateral guides 2, 3, by which it is prevented from moving laterally
out of position, and in thus passing forward, it receives a line of pasto at one edge
upon its under side from the disk c. Before the sheet has advanced sufficiently to
be out of the control of the rolls A, B, it enters the bite of the rolls F, which rolls
continue to advance the sheet beneath the former, and as it is thus advanced, and
immediately after its advanced end passes the bite of the rolls F, the edge 8 of the
sheet is acted upon by the rear end of the guide H, and folded up to a substantially
vertical position, as indicated in Figure 13, and at or about the same time the
opposite edge of the sheet, which projects beyond the former, is acted upon by the
guide I, and folded over on the line 6. While the folding is thus progressing, and
while the sheet is still in the control of the feeding rolls F, its advance end passes
into the control of the feeding disks G, which, together with the, rolls F, continue

page_text: SD, 10, 0f the Sucot are folded nrst to the
In
position shown in Figuro 14, and then down flat on to the top of the former..
After this has been accomplished, the advance on of the folding guide H acts to
complete the folding over of the portion 8 of the sheet, thereby bringing it down
flat on to the former on top of the portion 10, and on to the line of paste applie
to said portion 10, thereby completing the tube, as indicated in Figure 15.
this condition, the tube is advanced by the disks F, G, into the control of the
rolls K, and delivered from the machine in a flat condition, as indicated in.
Figure 15. The tube thus formed is then in condition to be severed into scctions
of suitable length for box covers or sheaths, or to be refolded, as it preferably
will be, by the refolding mechanism which will now be described, before being
severed into box lengths.
THE REFOLDING MECHANISM.
Referring to Figures 17-27, the refolding mechanism shown embodies a pair of
horizontal feeding rollers N, N, mounted upon suitable axes in journals supported
by the bed at the feeding end of the machine, and a pair of drawing rollers O, O,.
similarly supported at the delivery of the machine. Between these feeding and
drawing rollers are pairs of upsetting rollers arranged upon vertical axes. The
first pair m, m, placed slightly in advance of the feeding rullers N, N, have grooved
peripheries adapted to receive, guide, and control, the outermost edges or folled
seams of the flat tube. The second pair, n, n, are likewise grooved, but the
grooves are so shaped as to support and act upon the narrower sides of the tube,
when the same has been partially opened. Throughout their main portion, the
peripheries of the third pair, o, o, are conical, but they may be modified so as to
become conoidal,-in either form acting to support and control the tube upon its
top and bottom or widest parts, or their shape may be such as to bear upon all sides
of the tube, the tube, during its passage through these rollers, being in, or nearly
in, a refolded condition.
.
The uppermost of the feeding rollers N N is, in this case, upon the main driving
shaft 11, and the pair of these rollers N N are geared together, so as to revolvo in
unison, by means of spur wheels 12, 13. The uppermost of the pair of drawing
rollers OO, is mounted upon a shaft 14 that carries a pulley 15 whereby notion is.
transmitted to it from the driving shaft 11 by means of a pulley 16 thereon, and a
driving belt 17 running over said pulleys 15, 16.
The drawing rollers O. O are geared together by means of spur wheels 18, 19,
by which they are driven in unison. The pairs of upsetting rollers mm; nn;
oo, are respectively provided with grooved driving pulleys 20, 20, 21, 21, and 22, 22,
around which run driving bands 23, 24, whereby said rollers are driven in unison,
said driving bands being held to duty by grooved tightening pulleys 25, 26, and
the whole series of upsetting rollers are driven in unison with the feeding and
drawing rollers by means of driving bands 27, 28, that run around grooved
pulleys 29 on the shafts of the upsetting rollors o, e, and over grooved driving
pulleys 30, 31, on the shaft 14, and intermediate grooved guiding pulleys.
The feeding rollers and drawing rollers are adjustable vertically by means of
sliding boxes and adjusting screws, as shewn, and the respective pairs of upsetting
rollers m m, n, oo, are adjustable to and from each other by means of sliding
boxes aud adjusting screws, 32, 32, 33, 33, and 34, 34, which adjustment of the
upsetting rollers is for two purposes, primarily, to adjust the respective rullers with
respect to each other, in order that the refolding operation may be perfectly
performed by each set; and secondarily, for the purpose of moving said rollers to
the degree necessary to enable the machino to operate upon different widths of
collapsed tubes.
The double adjustment of the feeding rollers N, N, is primarily to enable the
same to be adjusted correctly with respect to the first pair of upsetting rollers m m;
secondarily, to suit the thickness of the collapsed tube, due to the material

page_text: composing it; and the adjustment of the drawing rollers O. O is for the latter
purpose.
Single tubes of a box length, or preferably of a suitable length for the
construction of many boxes, in which case the shorter lengths are subsequently
separated by transverse cuts, are fed either by hand or a feeding mechanism, such
as the machine in which flat blanks aro converted into collapsed tubes, and thus
directed in their flat or collapsed condition between the feeding rollers N. N.
These rollers advance the tube between the upsetting rollers m, m, the grooves
of which are either shaped to exactly receive the outer edges of the collapsed
blank, or are adjusted toward each other, so as to not only receive its edges, but
very slightly compress the tube, thus opening it, or allowing it to open, to a slight
degree, as shewn in Figure 19. As the tube advances from these upsetting
rollers m m, its leading end, slightly opened by the action of the rollers m m, or by
its inherent expansive action, passes between the upsetting rollers n n, the grooves
of which are shaped to still further open the tube (see Fig. 20), the extent of
which is preferably such as to cause the narrower sides of the rectangular tube to
be fully supported as shewn.
By considering this Figure 20, and the open condition of the tube with respect
to its almost flat condition shewn in Figure 19, it will be observed that the pressing
acting of the upsetting rollers n. n has converted the almost flat tube into nearly a
rectangular condition. As the now well opened end of the tube enters and passes
through the upsetting rollers oo, which are conical in shape, said rollers press upon
the wider portions or top and bottom of the tube, thus causing the tube to be so
far refolded as to pass, beyond the rectangular conformation, as shewn in Figure 21,
and approach a collapsed condition in a direction opposite to that which the parts
had when the tube entered the machine.
From these conoidal upsetting rollers, the tube enters between the drawing
rollers O, O, the surfaces of which are horizontal and parallel, and operate to
press the tube flat, and deliver the same out of the machine entirely refolded.
It will be observed that the collapsed and the partially refolded tube in all
conditions of shape it has in being distended and refolded, will, as it approaches
each of the pairs of upsetting rollers, be readily received between the same by
reuson of the flaring guide their circular form presents for the leading end of the
tube, and hence that each pair of upsetting rollers will not only readily receive the
tube, but truly and effectively act upon it to progressively open the same by
bending it upon its creased lines.
It will be understood from a consideration of Figures 24 and 25, which show
the varying condition of the parts of the tube from its collapsed state through its
changes in being refolded and its return to the collapsed condition, that the sides,
top, and bottom of the tube, all move laterally upon their uniting seams, which,
acting as hinges, thus become bent and rebent, and hence rendered equally supple,
during which operation, the course of the tube is somewhat serpentine or twist-like.
Three pairs of such rollers, as shewn, bave been found practically and perfectly
effective, but the operation may be performed by a less number, or, in cases of some
material, be facilitated by using a greater number of these upsetting rollera.
In the case of the rollers n, n, as their operating or active surfaces are the
angular ones that bear upon the sides of the tube, it is apparent that they might
be mere cones, and still operate, but it it preferred to provide them with the
shoulders at the termination of the active conoidal portion.
In the case of the rollers o, o, the conoidal portious are the active parts of these
rollers, and hence their straight portions, which are shewn as extensions of the
conoidal portions that are active upon the top and bottom plies of the tubo, might be
omitted, as they are not essential, but it is preferable to have these straight portions,
in order to secure a perfect operation, aud a high rapidity thereof, and these
portions, when straight, may form the angle of contact of the corners of the tube,
or be slightly conical, so as to entirely bear upon the sides of the tube, and the
conoidal portions of these rollers may, if desired, in either one or both, be curved

page_text: outwardly so as to impart, by inwardly pressing the top and bottom of the tube,
an over-refolding of the formerly unfolded seam.
As shewn, the box tube, when refolded into the condition which appears in
Figure 21, tends to collapse into its former con:lition, so that as it enters between
the drawing rollers O, O, it is pressed flat into its first collapsed condition, after
having been folded in an opposite direction, as we have seen by the upsetting
rollers.
Thus, all of the seams in the tube have received a complete refolding, whereby
each of the seams is rendered equally limp or supple, thus enabling the tube to
be readily opened from a flat to a rectangular or hollow condition, to receive its
contents.
By substituting for the drawing rollers O, O, a pair of conical rollers P, P, on
horizontal shafts, as shown in Figure 23, or by setting the rollers 0, 0, on oblique
shafts, which would be their equivalent, the tube may be pressed flat, as it emerges
from the machine, by a continuation of the movement of its parts in the saine
direction in which they are movel by the refolding rollers o, o, as will be
apparent.
When the refolding is all in one direction, as will be the case in using the oblique
rollers P, P, the varying condition of the parts of the tube will be substantially as
is shown in Figures 26 and 27, the outermost seams, or those which were completely
doubled in the collapsed and non-refolded tube, becoming the innermost or opened
out seams, when the refolded tube is again collapsed. It may now be remarked,
that though it is advantageous, and hence preferred, to use the drawing rollers 0, 0,
or P, P, or some equivalent therefor, these are not essential, as the refolding
operation is accomplished before these rollers are reached, and their function is to
restore the collapsed condition of the tube.
The collapsed tube might also be fed to the upsetting rollers by hand, aided or
not by a guide, but it is preferable that a guide should be used, and that the same
should be feeding rollers. It will be apparent that the upsetting rollers may be
increased, so as to progressively move the plies of the tube laterally through all
of its course, whether that course be partially in one direction and partially in the
other, as is indicated in Figures 24 and 25, or wholly in one direction, as is
indicated in Figures 26 and 27.
It is desirable to positively confine the passing tube in its proper relation to
some of the upsetting rollers, and for this purpose there is addeil thereto an over-
hanging rim 32, which thus affords an abutment against which rests one doubled
edge or seam of the tube. This is not essential, but a convenient and useful
means aiding the rapid operation of the mechanisms. The mode of driving the
upsetting rollers may be gearing, although the bolts and pulleys aro preferred.
The cutting and delivery mechanism, which may take the tubes in the condition
in which it leaves the scoring and tube forming mechanism, or the refolding
mechanism, and sever them into box lengths, and deliver them into suitable
receptacles, will now be described.
CUTTING AND DELIVERY MECHANISM.
Referring to Figures 28 to 31, illustrating the cutting and delivery mechanism,
it is to he understood that Q, R, represent pairs of cutting disks mounted upon
shafts g, r, journalled in a suitable framework, in such position, that the disks work
past each other with a shearing action in the manner common in rotary cutters..
The shafts g, r, are geared together, aud receive motion in any suitable manner,
AS, for example, from a belt pulley 8 mounted upon one of the shafts. The pairs
of disks Q, R, are located at such distances from each other upon the shafts,
that a tube of the character herein before described, or a sheet of cardboard or
other material, being passed between the shafts g, r, and subjected to the action
of the disks, will be severed into sections of the required length. Located in

page_text: forms of material are presented to the disks. The table T is provided with a
number of slots 33, through which project fingers 34, which extend above the top
of the table, and are carried by a reciprocating plates, located beneath the table,
and moving horizontally in suitable guides. The function of the fingers 34 is to
present the tubes to the cutting disks, and for this purpose the plate s which carries
the fingers is connected to a rock arm 35, which extends from a shaft 36 mounte.1
beneath the table, and having an arm 37 which is connected by a rad 38 to a
crank 39 secured upon the shaft r in such manner, that at each revolution of the
shaft, the fingers 34 are caused to move to and from the cutting disks. For the
purpose of presenting the tubes to the catter in proper position lengthwise, there
are provided side guides t, u, which act upon the ends of the tubes. These guides
are adjustable upon a bar 40, which extends transversaly of the machine above
the table T and are inclined, so that as the tube is advanced by the fingers 34, is
will be moved longitudinally in one direction or the other, to be brought to the
proper position. One of the guides (a, as shown in the present case) is made of
spring metal, so as to yield slightly to accommodate tubes which vary in longth
within certain limits. The pairs of cutting diska at the ends of the shafts q
operate to trim off the ends of the tube, to reduce it to the proper length, while
the intermediate pairs of disks operate to sever the tube into sections of the proper
length. The bar 40, which supports the side guides, is also provided with two
or more spring fingers 41, which extend downward in front of the bar, and rest
upon the table T, so as to bear upon the upper surface of the tube as it is
advanced by the fiugers 34. These spring fingers 41 operate in case the tube is
placed upon the table so that one end will be moved forward slightly in advanco
of the other, to detain the end thus advanced, and cause the tube to be advanced
evenly at both ends, and presented squarely to the cutting dieks. To aid the
opeintor in feeding the tubes accurately and rapidly to the machine, the bar 40 is
provided with a ledge 42, upon which the operator can place the edge of the tube
with one end abutting against the guide t. The operator having placed the tubo
in this position, will hold it there while the precoding tube is being advanced to
the cutters by the fingers 34, and as soon as the fingers have been retractel, the
operator will simply release the tube, the edge of which is resting upon the
ledge 42, allowing it to fall upon the table in front of the fingers, and, by reason of
the position in which the tube is held upon the ledge, it will fall naturally
onto the table, into substantially the proper position to be advanced squarely to
the cutters.
Located upon the shafts q, r, between the pairs of cutting disks, are a series of
pulleys e, around which pass upper and lower conveying tapes w, a, by which the
sections of the tube, after they are severed from each other, are taken as they
pass from the cutters, and conveyed away from the machine, to be deposited in
suitable receptacles. In order to separate the sectious and deposit them in separate
receptacles, the tapes to, z, are arranged as follows:-All of the tapes w, which
are the upper tapes of the series, pass around pulleys v, upon the shaft g, and
return around a roll or a series of pulleys y, located at a suitable distance
from the cutters. The tapes x, which co-operate with the tapes to, pass around
the pulleyse, upon the shaft r, and pass forward with the tapes w. Alternate tapes
of the series. return around a roll or pulleys c, located directly or substantially
beneath the roll or pulleys y. The remaining tapes, which alternate with those
passing around the roll z, pass forward with the corresponding tapes to, but return
around a roll or pulleys z located nearer the cutters than the roll. By this means,
as will readily he.seen, the several sections U, into which the tube is severed, are
advanced side by side between the tapes w, z, until they arrive at the roll, as
indicated in Figures 28 and 29. As soon, however, as they pass the roll z', alternate
sections U, being no longer supported by the unler tapes, fall, und enter receptacles V.
provided to receive them, where they are retained in separate lots, and can be
readily counted. The remaining or alternate sections U. do not fall, but pass
forward between the tapes w,, as indicated by dotted lines in Figure 28, until they

page_text: emerge from between the rolls y, z, where they pass from the control of the tapes,
and are deposited in receptacles W. provided to receive them.
From the scoring and tube-forming mechanism, the tubes may be delivered to the
re-folding mechanism and thence to the cutting and delivery mechanism, either
mechanically or by hand, as desired.
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. In a machine for forming hox tube blanks, the combination with a bed plate,
of the former D (pendent from brackets carried by the bel plate), oppositely ucting
folding guides operating to progressively direct the sides of the sheet over said
former, and to overlap its edges to form a tube, as the sheet is moving onward, and
sheet-propelling dises or rolls mounted to operate through the former upon a single
thickness of the shoet, and acting to force it onward through the folding guides in
performing the folding operation, as above described.
2. In a machine for forming box tube blanks, the combination with the creasing
or scoring rolls A, B, the former D, and oppositely acting folding guides operating
to progressively direct the sides of the sheet over said former and to overlap its
edges to form a tube as the sheet is moving onward, of a pair of sheet-propelling
dises or rolls mounted to operate, through the former, upon a single thickness of the
sheet, and acting to force it onward through the folding guides, in performing the
folding operation, substantially as described.
3. In a machine for forming box tube blanks, the combination with the creasing
or scoring rolls A, B, the former D, meaus for applying paste to one edge of the
sheets, and with oppositely acting folding guides operating to progressively direct
the acting sides of the sheet over said former, and to overlap its edges, to form a
tube as the sheet is moving onward, of a pair of sheet-propelling disos or rolls
mounted to operate through the former upon a single thickness of the sheet, and
acting to force it onward through the folding guides, and a pair of drawing and
pressing rollers K K, substantially as described.
4. In a machine for forming box tube blanks, the combination with creasing or
scoring rolls, the former D, a pair of sheat-propelling discs or rolls mounted to
operate through the former upon a single thickness of the sheet at or near the
point where the sheet is first engaged by the folding guides, and a pair of sheet-
propelling discs or rolls mounted in advance of the first pair of rolls, to operate,
through the foriner, upon a single thickness of the sheet, aud near one side thereof,
of the folding guide 1 constructed and operating to progressively direct one side of
the sheet over said former, and the folding guide H constructed and operating to
fold the opposite edge of the sheet at right angles to the former, and maintain the
same in that position, until it has passed said second pair of rolls, and then to turn
the same inwardly, uud lap it upon the other sheet, substantially as described.
5. In a machine for forming box tube blanks, the combination with the former D,
and means for folding the sides of a sheet over the former, and overlapping its
edges to form a tube, of a pasting dian acting to apply paste to one edge of the
sheet as it is advanced to the former, and aide guidos 2, 3, guiding the sheet while
it is receiving the paste, substantially as described.
6. 1o a machine for forming box tube blanks, the combination with a pasting
disc, as o, of a co-acting pressing roll, as g, having a grooved periphery, substantially
as doscribed.
7. A mechanism for refolding creased paper tubes, the same consisting of a die
baving moving walls or sides, and contracting the tube gradually at the sides from
the entrance end of the die, and widening in a direction at right angles to the sides,
and then gradually widening it in the direction of the sides, and gradually contracting
in a direction at right angles thereto, substantially as described.
8. In a mechanisni for refolding creased paper tubes, the combination of two or
more pairs of rollers, whereof the bearing surfaces of the respective pairs are so
B

page_text: co-related, that a flattened box tube is, in passing between them, opened up, and its
seams or creases folded, so as to render them supple or limp, substantially as
described.
9. A mechanism for refolding paper tubes, the same consisting of pairs of
rollers, the pressing or feeding surfaces of which are so related as to cause the sides,
top, and bottom of a tube passed through them, to move laterally upon the seams
uniting them, whereby snid seams are rendered limp or supple, substantially as
described.
10. A mechanism for refolding paper tubes, the same consisting of two or more
pairs of upsetting rollers, the peripheries of which are shaped so as to not only
compress the tube, but move its plies laterally, and thus bend its seams, to render
the same limp or supple, subatantially as described.
11. In a mechanism for refolding paper tubes, the combination of two or more
pairs of upsetting rollers, the peripheries whereof are so shaped as to compress tho
tube, and respectively to progressively move its plies laterally, and cause their
uniting seams to be bent, and thus rendered limp or supple, substantially as
described.
12. In a mechanism for refolding paper tubes, the combination with two or
more pairs of upsetting rollers whose peripheries are shaped so as to compress
a paper tube and move its plies laterally upon its uniting seams, of a pair of
feeding rollers or drawing rollers, either or both, as above described.
13. In a mechanism for refolding paper tubes, the combination with two or
more pairs of upsetting rollers whose peripheries are shaped so as to compress
a paper tube and move its plies laterally upon its uniting seams, of a pair
of feeding rollers, and a pair of oblique drawing rollers, substantially as
described.
14. In a machine for refolding paper tubes, one or more of the pairs of
upsetting rollers constructed in convidal form suited to bear upon the top and
bottom plies of the tube, and with extensions that form seats for two of the seams
of the tube, substantially as described.
15. In a machine for refolding paper tubes, one or more of the pairs of
upsetting rollers constructed in conoidal forin suited to bear upon the top and
bottom plies of the tube, and with extensions that are suited to bear upon the sides
or narrower plies of the tube, substantially as described.
16. In a machine for refolding paper tubes, one or more of the pairs of
upsetting rollers constructed in conoidal form, so as to not only bear upon the top
and bottom plies of the tabe, but to press the same inwardly, substantially as
described.
17. In a machine for refolding paper tubes, one or more of the pairs of
upsetting rollers constructed in conoidal form, suited to bear upon the top and
bottom plies of the tube, with extensions that form soats for two of the seams of
the tube, and with an overhanging rim, as 32°, that confines the passing tube in
place, substantially as described.
18. In a cutting mechanism the combination with the rotary cutting discs QR
of the reciprocating feeding fingers, the side guides t, u, one of said guides being
yielding and adjustable in the direction of the axes of the cutting discs, and the
spring presser fingers 41, substantially as described.
19. In a cutting mechanism, the combination with the rotary cutting discs, the
reciprocating feeding fingers, and the side guides, of the bar 40 having a ledge 42
for supporting the material previous to its being deposited in front of the fingers,
substantially as described.
20. In a cutting and delivery mechanism, the combination with the rotary
cutting discs Q, R, of the pulleys v, alternating with the discs, and the alternating
long and short conveying tapes w,, for conveying the sectious away from the
cutters, substantially as described.
21. In a cutting and delivery mechanism, the combination with the rotary
cutters, of the alternating long and short conveying tapes for conveying the

page_text: sections away from the cutters, and delivering them in different positions,.
substantially as described.
22. In a cutting and delivery mechanism, the combination with the rotary
cutters, the feeding fingers for advancing the material to the cutters, and the side
guides, of the alternating long and short conveying tapes w,, for conveying the
sections away from the cutters, substantially as described.
23. In a cutting and delivery mechanism, the combination with the rotary
cutters, the feeding fingers for advancing the material to the cutters, the side.
guides, and the spring presser fingers 41, of the alternating long and short
convoying tapes io, a, for conveying the sections away from the cutters,.
substantially as described.
24. In a cutting and delivery mechanism, the combination with the rotary
cutting discs, of the feeding fingers for advancing the material to the cutters, said.
guides t, u, one of said guides being yielding, and both of said guides being
inwardly inclined, and tapes for conveying the sections away from the discs,.
substantially as described.
25. In a cutting and delivery mechanism, the combination with the rotary
cutting discs Q, R, of the pulleys and pulleys y, e', and alternating long and
short conveying tapes wx, for conveying the sections away from the cutters,.
substantially as described.
26. In a cutting and delivery mechanism, the combination with the rotary
cutting discs Q, R, of the reciprocating feeding fingers 34, the side guides t, u,
one of said guides being yielding, the spring presser fingers 41, and alternating
long and short conveying tapes w,, for conveying the sections away from the-
cutters, substantially as described.
Dated this 25th day of August 1898.
NEWTON & SON;
Agents for the Applicant..