Machine for Making Paper Tubes.
Year: 1895

page_text: Date of Application, 12th Nov., 1895-Accepted, 28th Mar., 1896
Machine for Making Paper Tubes.
I, HARMER DENNEY, Mechanical Engineer, of No. 128 Centre Street, in the
City of New York, in the County of New York and State of New York, in the
United States of America, 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:—
This invention relates to a new and improved machine for making paper tubes
such as are used for mailing purposes and for making biscuit boxes, seed boxes,
snuff and tobacco boxes and the like.
The object of my invention is to provide a machine which is simple in
construction, strong and durable, and by means of which paper tubes of any desired
diameter and any desired thickness can be made, and which tubes, when formed
and shaped, can be automatically cut off, at any desired length, with clean and
sharp edges. The machine is fully shown in the accompanying drawings, forming
a part of this Specification and in which like letters of reference indicate like parts
in all the figures.
Figure 1 is a plan view of part of my improved machine for making paper
tubes.
Figure 1 is a plan view of the remaining part.
Figure 2 is a vertical longitudinal sectional view of part of the same, parts being
broken out.
Figure 2 is a similar view of the remaining part.
Figure 3 is an elevation of that part of the machine for cutting off the tube to
the desired length, showing the side opposite the one shown in Figure 2.
Figure 4, is a vertical transverse sectional view, on the line 4, 4, of Figure 3.
Figure 5, is an end view of the machine, looking from the left-hand end,
Figure 1.
Figure 6, is a detail side view of one of the shaping and feeding rollers.
Figure 7, is an end view of the same, the shaft being omitted.
Figure 8, is a vertical longitudinal sectional view of the roller, on the line 8, 8,
of Figure 9.
Figure 9, is an end view of the roller and shaft.
Figure 10, is a plan view of the shaping and feeding rollers, parts being shown
in horizontal section, and part of the driving-gear being also shown in horizontal
section, on the line 10, 10, of Figure 11.
Figure 11, is a vertical transverse sectional view, on the line 11, 11, of
Figure 10.
Figure 12, is a transverse sectional view, on the line 12, 12, of Figure 10.
Figure 13, is a transverse sectional view, on the line 13, 13, of Figure 10, parts
being shown in elevation.
Figure 14, is a plan view of the mechanism for outting off the paper tube at the
desired length, parts being in section, on the line 14, 14 of Figure 15.
Figure 15, is a vertical longitudinal sectional view of the same, on the line 15, 15
of Figure 14.
Figure 16, is a vertical transverse sectional view, on the line 16, 16 of Figure 15,
and
Figure 17, is a vertical transverse sectional view on the line 17, 17 of Figure 15,
the said views Figures 16 and 17 being taken in opposite directions,

page_text: On the two standards A', A' on the base A of the machine frame a tubular
shaft B is mounted to turn, and on one end part of the same is fixed a combined
reel and belt pulley C over which a driving belt C¹ passes from a pulley C on a
counter-shaft C. A block D is fastened in one end of said tubular shaft B and to
said block a mandrel D' is fixed at one end, which mandrel is located centrally in
said tubular shaft B to rotate with the same. A coil of paper A² is wound on that
part of the tubular shaft B projecting into the combined pulley and reel C and the
paper strip A passes from the coil A' over a pulley E on the inner side of the rim
of the combined reel and pulley C and from there passes over a pulley E' mounted
between the ends of two arms E' projecting from the block D in the direction of
the length of the tubular shaft 13, and from said pulley E the strip A³ passes
through the end of the shaft to the mandrel D upon which it is wound, so as to
form a spiral core. Adjacent to the inner end of the tubular shaft B a sleeve F
is formed on the upper end of a standard F on the base A on. the machine frame,
the central axis of which sleeve F is in line with the central axis of the tubular.
shaft B. Within said sleeve F a sleeve G is loosely mounted, which sleeve G is
provided at its outer end with a grooved belt-pulley G', over which passes a
driving rope G that also passes over a grooved pulley G³ on the counter shaft C.
At one side of the machine frame a reel I is arranged, from which a strip of
paper I is guided at an inclination upon the coro D' formed by the paper strip A
on the mandrel D', and at the other side of the machine a similar reel (2 is located,
from which a strip of paper I also passes to the core D, said strip 13 passing
through a paste-pot J having a suitable doctor or scraper J. In the two
standards K, K' on the base A of the machine frame two disks L, L' are mounted
to rotate, which disks are united by bars L³ in which bearings are formed for a!
series of transverse shafts M, which are provided alternately at opposite ends with
worm-wheels N engaging worms N10 on two shafts N arranged parallel with said
bars and having their ends mounted to rotate in the disks L and L', as shown
clearly in Figure 10. Each shaft N12 carries at one end a pinion O (Figure 10),
which engage the circular rack O' having a central hub P¹ mounted loosely on the
sleeve P,.one end of which is fixed centrally in the disk L' to rotate with the same.
On the hub Pa worm-wheel P3 is fixed, which engages a worm Q on a horizontal
shaft Qarranged transversely with the length of the machine frame and suitably
journaled in bearings on the top of the base of the machine frame, as shown in
Figure 13, which shaft Q carries at its end a bevel cog-wheel Q² engaging the
bevel cog-wheel Q³, which is fixed ou the same shaft Q with a cog-wheel R, the
shaft Qof said united cog-wheels Q3 and R being mounted in a bracket A' of
the machine frame. The cog-wheel R engages a cog-wheel R¹ mounted to turn on
an shaped arm R3 that is mounted to swing on the shaft Q of the bevel cog-
wheel and cog-wheel R, which L-shaped arm has a segmental slot R³ through
which a bolt R passes from the bracket A. The cog-wheel R' engages a pinion S
on the end of the shaft S' of a tapering drum S3, over which a
driving belt Ss
passes that also passes over a tapering drum S fixed on the counter-shaft C. The
pinion S is interchangeable and can be replaced by a smaller or larger pinion for a
purpose that will be set forth hereinafter, and to permit of interchanging the said:
pinion S the arm R2 on which the cog-wheel R¹ is mounted is made adjustable, so
as to adapt it to the various sizes of the pinions. Between the bars L' a soft
rubber roller M is mounted on each short transverse shaft M, each roller having
a concave aunular groove in its rim, as shown in Figures 6, 8, and 10. These
rollers must be made interchangeable so as to adapt the machine for making tubes
of various diameters, as the groove in said roller must be different for each diameter
of tube to be made. So as to permit of readily interchanging these rollers, the
.shaft M is provided with two transverse slots M³, through which pins M are
passed, the ends of which pins rest in notches N of the central necks N' of end-
plates N which plates are mounted loosely on the shafts M and rest against the
end faces of the rollers M. Screws O are screwed in threaded apertures
extending from the ends of the shafts M to the slots M³, the inner ends of said

page_text: screws bearing against the transverse pius M, and pressing them against the
necks N of the disks N³ and thus pressing said disks against the end faces of
the rubber rollers M and thereby holding said rollers in proper place on the.
shafts M. Whenever a roller M' is to be removed the screws O are loosened, so
as to perinit of removing the pins M and then the end-disks N³ and the roller M'
are slipped off the shaft M and a new roller is placed upon the shaft with the end
disks N; the pins M' are replaced and the screws 02 drawn up so as to press said
pins M against the end-disks N and said disks against the end faces of the rubber
roller. In this way the machine can readily be adjusted for tubes of various
diameters. To facilitate interchanging the rollers, the shafts M of the rollers are
held in place by removable bearing-blocks T (see Figure 1), which are held iu
place by bow springs T' fastened by screws Ts to the bars L³ each bow-spring
resting on two adjacent bearing blocks. As appears from Figure 10, the
mandrel D on which the tube is formed and on which the same is conducted,
passes between the two sets of rollers M¹ to within a short distance of the end of
the sleeve P. A belt pulley W is fixed on the sleeve P, as shown in Figures 1
and 2 and over the same a belt W¹ passes that also passes over a pulley W² on the
counter shaft C².
I will now describe the means for cutting off the tube at the desired length. In
a transverse plate A10 on the underside of the base frame A the shaft 6 is fixed as
shown in Figures 2ª and 15, so as to extend parallel with the base, and on the
same a cam pulley 6 is mounted loosely, which pulley is provided with an elliptical
cam-track &, the plane of which is at au angle to the axis of the pulley, said cam-
track projecting from the periphery of said pulley in the shape of a ridge or
spline. The pulley b' is also provided at its inner end with a lug or tooth 3 at the
periphery and at the opposite or outer end it is provided with a pin & projecting
from the end surface of the pulley at the periphery. A belt pulley c, provided
with a hub c', is loosely mounted on the shaft 6 and is driven by a belt passing
over the pulley es on the counter-shaft C2. Two yokes d are united by bolts eli
and clamped friction-tight on the hub c¹ of the pulley c, which yokes in rotating
can strike against the pin & projecting from the outer end of the cam pulley b.
A plate e is mounted to slide on the base frame A in the direction of its length
between the guide standards; on the top of said base frame, and said plate e is
provided at one end with two downwardly projecting pins carrying anti-friction
rollers e, in between which rollers e' the cam ridge or track 6 on the pulley b' can
pass, so that as said pulley & rotates its cam track moves the plate e longi-
tudinally in the direction from the pulley c and then toward the same, and so on
alternately. On said plate e two standards are arranged in which a shaft f
extending in the direction of the length of the plate e, is mounted to rock, which
rocking shaft has upwardly projecting arms f to the upper ends of which a guide
tube 9 for the paper tube a is fastened. A stop lug / projects laterally from the
An arm projects
rocking shaft and can rest against the top of the plate e.
from the rocking shaft f in the opposite direction of the stop lug f³, and to a
bead on the other end of said arm a dog i is pivoted that is provided at its
bottom with a bevel ', which dog can swing in one direction but is prevented from
swinging in the opposite direction by a stop pin projecting from the head 'on
the end of the ari directly above the top edge of said dog, as shown in
Figures 14, 16 and 17. To one standard j a vertically adjustable cam piece is
fustened by screws, which cam piece has its upper corners beveled, as shown in
Figure 2ª A spring wire is coiled around the rocking shaft, ƒ, oue end of said
spring wiro bearing on the top of the plate e and the other bearing against the
pin projecting from the end of an arm k of said rocking shaft, so that by the
action of said spring the bottom edge of the head of the arm his pressed.
upon the top edge of one standard and the arms fare thus held vertically.
A shaft is mounted to rotate on its longitudinal axis in bearings of
arms m projecting upward from the main frame, and the said shaft can also
move in the direction of its length in said bearings 1. A circular sawn is

page_text: •
fixed on the shaft at that end of the shaft in line with the end of the guide
tube 9. and on the opposite end of said shaft la grooved pulley o is fixed, into the
groove of which an anti-friction roller o¹ passes, that is mounted to turn on the
end of a curved arm o³, projecting upward from the plate e, A belt-pulley p is
mounted on the shaft and around the same a driving belt p for the saw passes.
A rod 9 is suitably guided in the machine frame and in lugs on the under side of
the plate e to move in the direction of its length, and on said rod a block q' is held
adjustably by a binding screws q². A lever is pivoted to said block 7 and is
provided at its upper end with a disk, which is in the path of the paper tube a
passing through the guide tube g, and to the lower end of the lever r an anti-
friction roller is pivoted that rests against the wings (Figure 14) of a block s¹
held adjustably by a scrow 3 on a fixed bar fastened at one end to a lug of the
frame A and at the opposite end to a standard, which bar is parallel with the
rod 9.
A collar is held by a screw u' on the rod and is provided with a
hook-arin v, the free end of which passes into a longitudinal slot e, in the plate e.
A helical spring to is interposed between the upwardly projecting part of the
hook and a guide lug projecting from the under side of the plate e, through
which guide lug the longitudinally, movable rod g passes.
The operation of the machine is as follows:
The paper strip A' is drawn from the reel A³ over the rollers E, E¹ upon the
mandrel D' and is wound upon the maudrel spirally by hand until the coils of the
spiral thus formed have been passed through the rotating sleeve G, the several
belt pulleys being so arranged that the speed of said sleeve is different from that of
the mandrel. This rotating sleeve holds the paper snugly on the mandrel and
prevents unwinding of the strip. Immediately beyond the sleeve G the two paper
strips and I are wound upon the core formed by the paper strip on the mandrel,
the strip 1, which is provided with paste on both sides, as it has been passed
through the paste in a paste pot J, being wound on first and the strip 1' directly
upon the strip 1. The tube a thus formed now passes along the mandrel in
between the rubber feed rollers M' and the rotating frame formed by the
disks L, L' and the bars L³, and thereby the several layers of paper forming the
tube are pressed together by the grooved roller and at the same time the tube is
drawn forward in the direction of its length.
The speed of the rotation of said rotating frame formed by the disks L, L¹ and
bars, L, on its longitudinal axis, must be different from the speed of rotation of the
mandrel so as to form the spiral. As said frame rotates the pinions O, on the
shafts N are rotated, as they are engaged with the circular rack O'. The said
circular rack is rotated around the sleeve P by means of the worm-wheel P' and
worm Q and the belt S³. Accordingly as said circular rack O¹ is rotated with
greater or less speed or in the same direction or the reverse direction of said.
pinions 0, the speed of rotation of the shafts N¹ and consequently the speed of
rotation of the shafts M of the rollers M' varies. The paper strips from which
the tubes are made are not always of uniform width or of the same weight, and in
order to cause the edges of said strips to lie snugly against each other so as to form
close and tight joints, it is necessary to regulate and govern the speed of rotation of
the feed rollers M'. The operator of the machine can easily accomplish this by
varying the speed of rotation of the circular rack O' around the sleeve P, and this
variation of speed of the circular rack O¹ is easily accomplished by shifting the
belt S on the cone pulleys S and S. As the frame in which the shafts N are
mounted rotates at a certain speed and the said shafts have cog-wheels at the ends
that engage the circular rack O', it follows that by such engagement the shafts N
are rotated on their axes and in turn rotate the shafts M of the rollers M. The
said feed rollers M' press the layers of paper firmly against each other and firmly
against the mandrel 'D', which, as shown in Figure 10, and as has been heretofore
stated, passes in between the two sets of rollers M. The niandrel D¹ rotates in
the same direction as the frame formed by the two disks L, Land tho bars L
uniting them; but, as stated before, the speed of rotation of said frame is different
!!

page_text: from the speed of rotation of the mandrel. The rubber feed rollers M', therefore,
do not only press the strips of paper against each other and against the mandrel,
but at the same time they move the tube forward in the direction of its length by
drawing it off the mandrel, which travels, as has been previously stated, at a rotary
speed different from the speed of rotation of the frame formed by the disks L, L₁₁
and the bar L uniting them, both said frames and the mandrel rotating on the
same longitudinal axis, that is, concentric. As the mandrel runs in between the
rubber feed-rollers M¹ it permits of considerable pressure being exerted by said
rollers on the tube without crushing the latter, and thus sufficient friction can be
obtained' between the feed roller and the tube to draw the latter off the mandrel
and move it in the direction of its length uniformly. The variation of speed that
can be accomplished by shifting the belt S³ on the two cone-pulleys S3 and S4 has
certain limitations, and sometimes it is necessary to adjust the machine beyond
these limitations, and in that case the pinion S is removed from the shaft S¹
and is replaced by a pinion of greater or loss diameter as the circumstances may
require.
The cutting device operates as follows. The driving shaft of the machine
is so speeded that when the plate e is moved in the direction of the
arrow, Figure 15, it moves precisely with the same speed as the paper
tube a passing through the guide tube g. Ordinarily the pivoted lever is in
upright position, as shown in Figures 2, 3 and 15. The paper tube a passes
through the guide tube g and the end of said paper tube a striking against the
disk, on the upper end of the lever r, exerts a pressure against said disk, whereby
the lever is slightly tilted or swung over in the direction of the arrow 2,
Figure 15. As the lower end of the lever rests against the wing or abutment s of
the blocks, held firmly on the bar t, the pivotal point of said lever must move
slightly in the direction of the arrow al, Figure 15. As said pivotal point is in
one with the block g', which is hold securely on the rod q, said rod 7 is also moved
in the direction of the arrow a', sufficiently to disengage its free ond from the pro-
jection 63 on the periphery of the cam pulley b' at the inner end of said pulley. As
the yokes d'rest against the pin & projecting from the outer end of the pulley b',
they carry said pulley & around with them as soon as the same is released from the
rod and as soon as the rotation of the pulley b begins the plate e and the parts
thereon are moved in the direction of the arrow. The plate e acts on the hook
arm and moves the rod 7 in the direction of the arrow 2, and as thereby the
fulcrum of the lever r is also moved in the direction of the arrow a', the said lever r
can swing down so as to be out of the way of the tubo which still continues to move
in the direction of the arrow with plate e and the parts thereon... As the plate e
moves in the direction of the arrow the beveled bottom corner of the dog i
(Figure 2) strikes against the end bevel of the cam plute on the standard j, and
thereby the rocking shaft f is slightly turned on its lougitudinal axis and the tube g
and that part of the paper tube a in the same are swung in the direction toward the
shaft sufficiently to permit the saw to cut into the paper tube at the end of the
เ
guide tube g. As said paper tube a is being rotated while moving in the direction
of its length its entire periphery is presented to the saw teeth and an annular cut is
made in the tube, whereby a certain and determined length of the tube is cut off.
By this time the dog i has arrived at the end of the cam plate j and the pulloy &
has made half a revolution and by the action of the cam track 6 on the rollers e¹ e
the plate e is now moved in the inverse direction of the arrow ¹. The
pivoted dog i can now slide over the top edge of the cam plate without acting on
the tube g and the latter is held centrally above the longitudinal axis of the plate e
by the action of the spring wire k, that is, it is held clear of the saw.
The parts
travel in the inverse direction of the arrow a¹ and the rod q is also pulled back as
the spring wo bears on the hook that projects from the collar u. Thereby the end
of the rod g brought in the path of the projection on the cam pulley b', which
projection strikes against the projecting end of the rod q, and thereby the cam
pulley is stopped. As shown in Figure 4, the yokes d still bear on the hub c' of

page_text: d
the cam pulley, but as the said cam pulley is locked in place, the yokes & are also
locked and the hub c' of the pulley e now rotates within said yokes. As soon as the
end of the tube a again strikes against the disk the cam pulley 6' is again released
and the yokes d can again rotate the same. In this way the outting mechanism is
started automatically as soon as the proper length of paper tube projects from the.
end of the guide tube g. When the rod g' moves in the inverse direction of the
arrow it swings the lever . into vertical position; so that the disk " will be in
the path of the paper tube. The block on the rod t and the block q' on the rod
can be adjusted any desired distance from the standards according to the desired
length at which the paper tube a is to be cut, but in all cases the said blocks must
be adjusted together, so that as long as the rod q locks the friction pulley 6' in
place, the lever r will be held in vertical position. As the saw moves at the same
speed with guide tube g and the said guide tube 9 moves at precisely the same
speed as the tube a that is being cut off, the tube will be cut off precisely at right
angles and each section cut off will have precisely and absolutely the same length
as any other section that has been cut off, providing that the adjustment of the
lever has not been changed, for the reason that the cutting mechanism is always
started automatically, when such a length of paper tube has been formed and
produced as to extend to and come in contact with the disk r¹.
+
Having now particularly described and ascertained the nature of my said inveu-
tion and in what manner the same is to be performed, I declare that what [
claim is :
1. In a machine for making paper tubes, the combination with a rotary
tubular shaft, of a mandrel held concentrically within the same, a paper-holding
reel on said tubular shaft, the plane of rotation of said reel being at right
angles to the longitudinal axis of the tubular shaft, and means for drawing the
paper from said reel forward upon and winding it on the mandrel, substantially as
Bet forth.
2. In a machine for making paper tubes, the combination with a rotary tubular
shaft, of a mandrel mounted centrally in the same to rotate therewith, a reel
mounted on one end of the tubular shaft, a guide-roller for guiding a strip of
paper at the circumference of the reel, a guide roller mounted on projecting arms
of the reel, means for drawing the paper unwound from the reel upon the mandrel,
drawing the paper lengthwise on the mandrel and also winding it on said mandrel,
substantially as set forth.
3. In a machine for making paper tubes, the combination with a rotary tubular
shaft, of a reel on one end of the same, the plane of the reel being at right angles
to the axis of the tubular shaft, a mandrel in said tubular shaft, mounted to
rotate therewith, means for guiding a strip of paper from the reel upon the
mandrel, means for winding said paper on the mandrel, and devices for guiding
additional paper strips upon the strip wound upon the mandrel, substantially as set
forth.
4. In a machine for making paper tubes, the combination with a mandrel and
means for guiding a strip of paper upon said mandrel, of means for supplying
strips of paper to be wound upon the strip of paper guided upon the mandrel, a
rotary frame having a speed different from that of the mandrel, a rotativo
circular rack at one end of enid frame, longitudinal shafts in said rotary frame,
pinions on the ends of said shafts engaging said rotative circular rack,
A series of feed-rollers mounted in the frame, aud gearing for rotating said
feed rollers from the above mentioned shafts in the frame, substantially as set
forth.
5. In a machine for making paper tubes, the combination with a rotary tubular
shaft, of a mandrel in the same, means for guiding a paper strip upon the mandrel,
a rotary frame a series of feed rollers mounted in said rotary frame to rotate with
the same and also to rotate on their own axis, means for rotating said rotary frame
at a speed varying from the speed of the maudrel, which means for rotating the

page_text: frame are independent of the means for rotating the mandrel, suusLADLIANY US
Bet forth.
6. In a machine for making paper tubes, the combination with a rotating mandrel,
of means for guiding a strip of paper on the mandrel, a rotating sleeve through
which the mandrel passes, a rotating frame carrying a series of feed rollers mounted
to rotate within the frame and on their own axes, and means for rotating said sleeve
and said frame at speeds different from that of the mandrel, substantially as set
forth.
7. In a machine for making paper tubes, the combination with a tubular shaft,
of a mandrel held in the same, means for guiding a strip of paper on the
mandrel, a rotating sleeve adjacent to one end of said tubular shaft and in
line therewith, a rotating frame carrying feed-rollers, which feed rollers are
mounted to rotate ou their own axes, and means for rotating said sleeve and
frame at speeds different from that of the mandrel, substantially as set forth.
8. In a machine for making paper tubes, the combination with a mandral, of
means for guiding a strip of paper on the same, a rotating sleeve and a rotating
tube feeding device, cach driven by an independent power-transmitting device at
speeds differing from that of the mandrel, substantially as set forth..
9. In a machine for making paper tubes, the combination with a rotating
mandrel, of means for guiding paper strips on the same, a rotating frame, moaus
for rotating the same at a speed different from that of the mandrel, rollers in said
frame, means for rotating said rollers within the rotating frame on their own axes,
and means for varying the speed of rotation for said feed rollers, substantially as
Bet forth.
10. In a machine for making paper tubes, the combination with a rotating
mandrel, of means for feeding paper strips to the same, a rotating frame,
means for rotating the same at a speed different from that of the mandrel, rotative
feed rollers in said frame, and means for varying the speed of rotation of said
rotary feed rollers independent of the speed of rotation of the frame, substantially
as set forth.
11. In a machine for making paper tubes, the combination with standards, of
disks mounted to rotate in the same, bars counecting the disks, feed rollers mounted
between said bars, worms on the ends of the shafts of the feed rollers, worm shafts
mounted in said disks parallel to the bars connecting the disks, pinions on the ends
of said worm shafts, a rotative circular rack engaging said pinions, a worm wheel
mounted on the hub of the circular rack, and gearing for transmitting motion to
said worm wheel, substantially as set forth.
12. In a machine for making paper tubes, the combination with a shaft, of a
feed-roller mounted detachably on the same, end-plates resting against the sides
of the feed roller, transverse pins in the shaft, which pins rest against the end
plates and means for holding said pins in place in the shaft, substantially as set
forth.
:
13. The combination with a guide for a paper tube to be cut off, of mechanism
for moving said guide in the same direction with the moving tube and at the same
speed, a saw moving with said guide, means for tilting the guide toward the saw, a
latch for locking said mechanism, and means in the path of the moving tube for
disengaging said latch, substantially as set forth..
14. The combination with means for guiding a paper tube to be cut off, of a
saw for cutting into said tube, means for moving said guide, a latch for locking
said means, in place, a dovice for automatically disengaging said latch from the
mechanism by the action of the end of the tube to be cut off, and means for tilting
the guide toward the saw, substantially as set forth.
15. The combination with a guide for a paper tube to be cut off, of a cam
pulley for moving said guide, in the same direction as the moving tube and at the
same speed, a saw moving with said guide, a cam pulley, a rod for locking said cam
pulley, a lever in the path of the tube connected with said locking rod, and means
for tilting the guide toward the saw, substantially as set forth.

page_text: 16. The combination with a guide for a paper tube to be cut off, of a cam pulley
for moving said guide in the same direction as the moving tube and at the same
speed, a saw moving with said guide, a rod for locking said cam pulley, a lever
in the path of the tube, connected with said locking rod, an abutment against
which one end of said lever rests, and means for tilting the guide toward the saw,
substantially as set forth.
17. The combination with a guide for a paper tube to be cut off, of a cam pulley
for moving said guide in the same direction as the moving tube and at the same
speed, a saw moving with said guide, a rod for locking said cam-pulley a lever in
the path of the tube adjustably connected with said locking rod, an adjustable
abutment against which one end of said lever rests, and means for tilting the guide
toward the saw, substantially as set forth.
18. The combination with a frame, of a sliding plate, means for moving said
sliding plate in the direction of its length forward and backward, a guide-tube
mounted pivotally on said plate, a cam track at the side of the plate, a projecting
arm connected with the guide tube, a dog pivoted to the said arm and running on
the cam track, a spring acting on said guide tube to hold the dog on the cam track,
and a rotary saw mounted to move with the sliding plate, substantially as set
forth.
י
19. The combination with a frame, of a reciprocating plate, a cam-pulley acting
on said plate, a guide tube for the paper tube, which guide tube is mounted on said
plate, a rotary saw for cutting off the paper tube, which saw is mounted to inove
at the same speed with the plate, a friction pulley mounted adjacent to the cam
pulley, means for rotating the cam pulley from the friction pulley, and means for
tilting the guide tube toward the saw, substantially as set forth.
20. The combination with a reciprocating plate, of a cain pulley for reciprocating
said plate, a friction pulley mounted adjacent to the cam pulley, means for rotating
the cam pulley from the friction pulley, a rod for locking the cam pulley in place,
means for shifting said rod by the action of the end of the moving paper tube, a
guide tube for said paper tube mounted on the above mentioned plate, a rotary
saw for cutting off the tube, and means for tilting the guide tube toward the saw,
substantially as set forth.
21. The combination with a reciprocating plate, of means for moving the same
in the direction of its length, a guide tube mounted on said plate, a sliding, rotating
saw shaft mounted adjacent to the sliding plate, a circular saw fixed on said shaft,
a grooved pulley on the saw shaft, an arm projecting from the sliding plate into
said grooved pulley, and means for tilting the guide tube toward tho Baw,
substantially as set forth.
22. The combination with a fixed shaft of a cam-pulley mounted loosely on
the same, a pin projecting from the end of the cam pulley, a driving pulley
mounted loosely on said shaft, yokes clamped on the hub of said cam pulley and
bearing against the pin on the end of the cam pulley, a reciprocating plate
operated from the cam pulley, a guide for a paper tube on said reciprocating
plate, and a saw mounted to move with the reciprocating plate and for cutting off
the paper tube passing through the guide when the guide is tilted toward the saw,
substantially as set forth.
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