Improvements in Machines for Making Paper Cones and Tubes.
Year: 1895

page_text: Date of Application, 13th June, 1895-Accepted, 17th Aug.,
1895
COMPLETE SPECIFICATION.
Improvements in Machines for Making Paper Cones and Tubes.
I, JOHN CHRISTOPHER CORAM, of 177 Middlesex Street, Lowell, in the County
of Middlesex and Commonwealth of Massachusetts, one of the United States of
America, Manufacturer of Paper Cones and Tubes, 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:-
My invention relates to machines for making paper cones and tubes and consists
in the devices and combinations hereinafter described and claimed; the same being
adapted to take a previously-shaped paper blank, wind it about a spindle, apply
paste to the outer side of the blank while the same is being wound, to lay the lap,
to smooth the outer surface of the cone or tube and remove surplus paste, and to
strip the finished cone or tube from the spindle.
In the accompanying drawing, on five sheets,
Fig. 1, is a front elevation of a machine for making cones or tubes provided with
my improvement; Fig. 2, a plan of the same;
Fig. 3, a vertical section on the line 3 3 in Fig. 2 of the bed, parts of the legs,
the main shaft and lower shaft, the spindle supporting yoke, and a front elevation
of the feed-table, its supporting and operating parts, said spindle, part of the
mutilated gear which rotates said spindle, the pinion engaged by said gear and part
of the bevel-gear fast on said spindle, omitting the bevel gear which
bevel gear above named and which is one with or fast to said pinion ;
engages the
Fig. 4, a plan of a part of the bed, the feed-table and its gages and operating
mechanism including the lower shaft, the spindle and bevel gears and the spur-gear
fast on said lower shaft ;
Fig. 5, a plan of the feed-table and a cone blank arranged thereon ;
Fig. 6, a section of the feed-table and blank on the line 66 in Fig. 5;
Fig. 7, a plan of a blank;
Fig. 8, a left end elevation of the spindle and stripper;
Fig. 9, an isometric view of a finished cone or cone-tube ;
Fig. 10, a section of the table, the upper and lower shafts, one of the supporting-
levers of the paste-roll and spindle-supporting yoke on the line 10 10 in Fig. 2,
showing in front elevation the other supporting lever of the paste-roll, the restoring
spring and rod of said last-named lever, said paste-roll, the spindle, the cam, lever
and rods which raise and lower the spindle, the combined piston-rod and cam-rod,
means of varying the length of the combined rod, mechanism for rotating said
spindle, the stripper-bar, stripper, stripper-lever, the stripper connecting-rod and
stripper cam-rod;
Fig. 11, a front elevation of the stripper-cam and cam-rod, the lower part of the
stripper-lever and a vertical cross section of the lower shaft and the hanger which
supports said stripper-lever;
Fig. 12, a section on the line 12 12, Fig. 4, of the upper shaft, the spindle and its
journal-box and a rear elevation of the piston, combined piston and cam-rod and the
cam which operates said piston;
Fig. 13, a rear elevation of the mutilated gear and its stop-flange, the stop out
of engagement with said flange, and the bevel gear which rotates with said stop;
Fig. 14, the same as Fig. 13 except that the stop is in engagement with the stop-
flange;

page_text: Fig. 15 a vertical section of the bed and paste-pool, showing the paste-box in leit
side elevation ;
Fig. 16, a front elevation of a part of the bed, pool and paste-box, a part of said
box being in vertical section on the line 16 16 in Fig. 15;
Fig. 17, a left end elevation of a part of the bed, the slicker and its holder, its
connecting-rod, a part of the slicker-lever, the spindle, paste-roll and a part of the
stripper;
Fig. 18, a section of the stripper, its holder and a part of the stripper-lever, at
right angles to the shaft of said holder, and a side elevation of its connecting-
rod;
Fig. 19, a vertical section of the bed and lower shaft on the line 19 19 in Fig. 2
and a front elevation of the stripper-cam, its cam-rod, stripper-lever and
connecting-rod.
The horizontal bed A of the machine herein described is supported upon suitable
legs a and supports all the other parts of the machine.
In stands a turns' the horizontal upper or main shaft B, above said bed A and in
hangers a², below said bed, the lower shaft B'; said shatts' B B' being parallel and
connected by equal gears 6 fast on said shafts respectively.
The horizontal feed-table C (see Figs. 1-6) is almost the shape of a quadrant of
a circle and is secured by means of the projection c, eccentrically, to the top of a
vertical shaft c', turning in a pipe-box c² which reaches down through the bed A,
said shaft c having at its lower end a forwardly-extending arm c³, the free end of
which is jointed to one end of the feed cam-rod c, the other end of said cam-rod
having a guide-fork which receives and has a sliding fit on the lower shaft B'.
The cam or cam-disk is fast on said lower shaft B₁ and is provided with a
cam-groove c', which receives a stud projecting from the cam-rod c, so that
the rotation of the lower shaft causes said feed-table C to have 'an oscillating
'motion in aliorizontal plane.
The cam-groove c' as shown in Fig. 3, has two portions' eco, each concentric
with the cain-disk e and lower shaft B₁ and each measuring about the same angular
'distance, these portions being respectively farthest from 'and' nearest to the
center of said cam-disk, so that the feed-table Crests at each end of its traverse
for about one-fourth of the time of revolution of said cam-disk c, the extreme
front and rear positions of said feed-table being shown in Figs. 2 and 4, respectively.
The shape of the blank C' is shown in Fig. 7. it 'having two curved edges which
are (except as hereinafter stated) the arcs of concentric circles and two straight
edges which are parts of the radii of the larger circle, the length of the arcs
depending upon the number of thicknesses of paper to be given to the walls of the
tube and the lengths of the straight sides of the blank being the length of the slant
-side of the tube.
"The blank C¹ of thick paper or straw-board is placed on the feed-table so that
its rear edge overlaps the rear straight edge of said feed-table as shown in Fig. 5,
'wlien said feed-table is in the position shown in Fig. 2, said blank being placed
against the vertical parts of the gauges cc, with its overlapping part in the rear
of its proper position, and drawn forward until the rear radial side c¹³ of notch c
in the outer curved edge of the paper is drawn against the vertical back end of
the inclined stop c; said stop being secured on and movable with the rear gauge c
and serving to determine the distance to which the blank shall project beyond
the rear straight edge of the feed-table. The gauges c c are angle-pieces,
adjustable radially on said feed-table by means of slots cle in their horizontal
parts and screws 18 c1, passing up through said slots into the bottom of said
feed-table, to enable blanks of different sizes to be placed on said feed-table. When
the feed-table is swung backward to its extreme limit, the rear edge of the blank is
carried over the paste-roll D and to the rear of the same.
The paste-roll D is a conical idle-roll, having a corrugated or roughened surface
to take up the paste and provided with yielding bearings and with journals d'd
supported in levers d² d³ (Figs. 1, 2, and 10), pivoted in stands as a on the bed A

page_text: said levers d² d³ being substantially alike, except that being, for convenience,
arranged at about right angles to each other, the journal rests in an offset or
lateral extension d' of the lever d² while the journal d' is supported upon the lever d³
at right angles thereto. The end of each supporting lever d² d³, farthest from the
paste-roll D, is drawn downward by a spring d³, surrounding a rod de which hooks
over said lever and slides vertically in a hole in the bed A, said spring being
compressed between the bottom of said bed and a washer d', also surrounding said
rod and adjustable thereon, to vary the compression of the spring by a nut d³,
turning on said rod below said washer, and the downward movement of said rod d
being limited by a collar d' on said rod above said bed .A.
The blank C when thus moved backward over the paste-roll extends back of
said roll and above the slicker E, hereinafter described, and below the conical
spindle F which is then in the raised position shown in Figs. 3 and 10, but
immediately descends upon the blank, pressing the latter firmly down upon the
yielding paste-roll D, the blank being compressed between said spindle and said
paste-roll by the expansive power of the springs d' above described.
to
The spindle F (Figs. 1-4, 10 and 12) is made in two parts ff", a body f, turning
in a two-part thrust-box or journal-box f2 having internal annular grooves
receive corresponding collars f on the body f, in a well known manner, and the
hollow mandrel, former or spindle proper f¹ on which the blauk C is rolled into a
cone or tube, the part f¹ being detachable from the body f, to facilitate the
construction of the spindle and to allow of the use of spindles or formers of different
pitches or lengths, the part f' having a reduced shank (Fig. 12) externally
threaded and entering a threaded hole ƒ in the body f.
The thrust-box fis supported on a yoke f' (Fig. 2) formed in one with the
lower half of the thrust-box f, said yoke having journal-boxes f³ ³ (except that
they are supported by instead of supporting the main-shaft) in which the
main-shaft B turns freely and which allow said yoke to swing on said main-shaft,
one branch 10 of said yoke extending beyond said shaft B and carrying a
weight to counter-balance the yoke and parts secured thereby. The thrust-
box f (Fig. 12) is provided with an ear fi to which is jointed one end of a
connecting-rod 13, the other end of said rod f13 being jointed to one end of a
lever having its fulcrum on the hanger a and the other end of said lever f
being jointed to the lower end of the cam-rod 1. The upper end of the
cam-rod is forked at f16, to receive and be guided by the lower shaft B¹ and
a stud projects from said cam-rod f" into the cam-groove 18 of the cam-disk f¹9
fast on said lower shaft, (see Fig. 10).
17
The cam-groove f 18 has two portions f20 f21 concentric with the shaft B, the
shorter concentric portion 20 holding the spindle raised while the cone or tube is
being stripped from the spindle and a new blank is being fed, and the longer
concentric portion f" holding the spindle down and pressing the blank, or tube or
cone being formed, against the paste-roll.
The part of the spindle on which the blank is rolled is hollow, as shown in
Fig. 12, and said spindle is provided with a straight row of perforations f²²,
arranged in the plane of the axis of the spindle at the back of the spindle when
said spindle is first applied to the blank, and the hollow of the spindle-part fis
cylindrical at f, in the body f of said spindle, and contains a piston f, the
piston-rod f25 of which extends through the body fand is adjustably connected to
the cam-rod 26 by means of a nut f27 which turns in a slot fin said cam-rod and
engages the threaded-end part of said piston-rod, in an obvious manner, the piston-
rod and cam-rod being in line with each other and being in effect a combined piston
and cam-rod, adjustable in length. The cam-rod 26 is substantially like the
cam-rod f, being forked to receive and be guided by the main shaft B and has a
laterally-projecting stud f20 which enters a cam-groove f30 in a cam-disk f³, fast
on said main shaft, the rotation of said cam-disk causing the piston f" to have a
reciprocating motion in the spindle, the piston resting for a short time at the end
of the return stroke or while the cone is being removed from the spindle and while

page_text: the spindle is being lowered upon the blank, the stud 29 being then in the
concentric part 2 of the cam-groove, and resting for a shorter time at the end of
the exhaust stroke while the cone is being formed, said stud f being then in the
concentric part f33 of said cam-groove. The exhaustion of the air from the spindle
causes the paper blank near its rear edge to adhere firmly to the spindle over the
perforations 2, so that when the spindle is rotated, the blank is drawn from the
table and wound around the spindle, the long side of the notch c¹ in the paper
riding over the incline e above described.
Immediately after the exhaustion of the air from the spindle, said spindle is
rotated by the means described below, paste being applied to the blank by means
of the paste-roll D which rotates by frictional contact with the blank and runs in a
pool or tray H, in which said paste-roll is partly submerged, the paste being kept
at a nearly constant heigbt in said pool by a supply from the paste-box h (Figs. 1,
2, 15, and 16), said paste-box being filled with paste above the top of said pool and
being provided with a gate h', sliding in suitable vertical ways 12 and opening into
said pool, said gate being raised when required to increase the height of the paste
in said pool.
A bevel gear 4 is fast on the body f of the spindle and is engaged by another
bevel gear, formed in one piece with or secured concentrically to a spur-pinion 38
and to a stop-piece f7 and with them turning on a horizontal stud f38 which
projects forward from the rear branch of the yoke f', (Figs. 1-4 and 10). The
pinion 36 is rotated intermittently by the mutilated gear 30 (Figs. 1-3, 10, 13, 14),
fast on the main-shaft B, and through said bevel-gears, rapidly rotates the spindle
while the spindle is in its lowest position. The mutilated gear f" is provided with
a concentric arc-shaped stop-flange f40, having an angular measurement sufficiently
less than that of the untoothed portion of said gear f39 to allow the stop f³ to be
out of engagement with said stop-flange when the pinion 38 is in engagement with
the mutilated gear f39.
39
The stop has a concave surface which fits the convex surface of the stop-
flange and prevents the rotation of said stop and the pinion f38 and therefore of the
spindle during about one third of each revolution of the mutilated gear f39.
The slicker E (Figs. 1, 2, 17, 18) consists of a sheet e of rubber, leather or
similar flexible material, supported on a lever e', so journalled in stands a a' on the
bed A, as to bring the front edge of the sheet e parallel with the axis of the
spindle F when said spindle is in its lowest position, said sheet e being held between
a lever and the front end of a clamp e, pivoted between its ends, at e³, in ears e¹ on
said lever e', the front end of said clamp being forced down on said sheet e, or on
a stripe of wood or metal resting on said sheet, by a screw which turns in a
threaded-hole in said clamp e² near the rear end thereof and thrusts against the top
of said lever e¹. A connecting-rod is formed in two parts e7e8, the adjacent ends
of which parts are screw-threaded at ee¹0 and are united by a right and left hand
nut el, to enable the length of said rod to be varied, check-nuts e12 13 being
arranged above and below the nut el to prevent its being accidentally turned.
The connecting-rod ees is jointed to the lever e¹ and to a bell-crank lever e¹4
(having its fulcrum e16 on a hanger all, supported by the bed A) by ball and socket-
joints ele, the lever et being given a reciprocating motion by the cam-rod e¹s and
slicker-cam e, said cam-rod being like the cam-rods ef above described and
like them guided by the lower shaft B¹ on which said cam e¹ is fast.
A stud 20 on the cam-rod e¹8 projects into the cam-groove of the cam e" and,
when the paper blank is first fed over the paste-roll, as above described, said stud
is in the part of said groove, said part being concentric with and nearest the
shaft B¹ and the slicker being in its lowest position. As soon as the spindle and
paste-roll grasp the blank, the stud 20 enters the part 2 of the cam-groove, raising
the front edge of the slicker and laying the rear edge of the blank against the back
of the spindle F and over the perforations f22, just before the air is exhausted from
the spindle. When the spindle begins to rotate, the slicker rises with the blank
and above the spindle, as the receding part 2 of the cam-groove acts on the

page_text: is
9,
stud 20, and remains above and out of contact with the' blank until the paper
wound one turn and a part of another turn about the spindle, said stud e being
nieanwhile in the concentric part e24 of said cam-groove, after which the part 2 of
said cam-groove, brings the slicker against the paper where it remains until the
concentric part 2 of the cam-groove passes the stud e, laying the successive turns
of the paper smoothly on the preceding turns, pressing the outer lap down and
removing the surplus paste from the paper or tube. The tube being finished; the
spindle F is raised, as herein before described, and the tube is removed from the
spindle by means of a reciprocating stripper G, (see Figs. 1, 2, 8, 10, 17), the same
being a plate of metal, provided at its lower end with a downwardly-opening slot
the lower end g of said slot being wide enough to admit the reduced neck f" of
said spindle between the tube-shaping surface of said spindle and the thrust-box f
and said slot above its lower end being enlarged, at g², to fit the short cylindrical
part of said spindle. The stripper G is bolted at g³, to a slide 9 which is given
a longitudinal movement in stands as a by means of the stripper-cam g and
stripper-lever, immediately after the spindle reaches its highest position. The
stripper-cam is fast on the lower shaft B' and is provided with a cam-groove ',
the greater portion 8 of which is at a distance from and concentric with said
shaft B and the remaining portions g g of which suddenly approach and recede
from said shaft, (see Fig. 11), but this is not material in respect to the portion glo.
because the return movement of the stripper may occupy the whole time during
which the tube is being wound. The cam-rod g" is substantially like the cam-
rods cfe being guided in a similar manner by the lower shaft, and is provided
with a stud gwhich enters said cam-groove g', one end of said cam-rod g being
pivoted at g to the stripper-lever 96 above its fulcrum g". The stripper-lever is
pivoted on the hanger al and its upper end is jointed, at g, to one end of the
connecting-rod g, the other end of said rod g¹ being jointed to the slide g' by a
pivot g, adjustable by well known means in a longitudinal slot g18 in said slide, to
adjust the starting and stopping points of the stripper with reference to the highest
position of the spindle F.
13
Having new particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The combination of the paste-roll, the slicker, the spindle, means of rotating
the same, means for lowering said spindle upon a blank, means of securing an edge
of said blank to said spindle, and means of subsequently raising said slicker
against said blank to lay the edge of said blank against said spindle, as and for the
purpose specified.
2. The combination of the paste-roll, the slicker, the feed-table, arranged to
carry a side of a blank supported on said table over said paste-roll and slicker, the
spindle, means of rotating the same, means of lowering said spindle upon said
blank, means of securing an edge of said blank to said spindle, and means of
subsequently raising said slicker against said blank, to lay the edge of said blank
against said spindle, as and for the purpose specified.
3. The combination of the swinging-table, having radially adjustable gauges, the
spindle, means of rotating the same, means of securing an edge of a blank to said
spindle, and the paste-roll, as and for the purpose specified.
4. The combination of the swinging-table having radially adjustable gauges, the
spindle, means of rotating the same, means of securing an edge of a blank to said
spindle, the paste-roll and the slicker, as and for the purpose specified.
5. The combination of the swinging-table having gauges, one of said gauges having
an inclined stop, having a vertical back end, secured thereto, to enter a notch in
the blank carried by said table, to determine the distance to which such blank
shall project beyoud the back of said table and to enable the front side of said
notch to be drawn over said stop, the paste-roll, the spindle, means of securing the

page_text: edge of the blank to said spindle, and means for rotating said spindle, as and for
the purpose specified.
6. The combination of the intermittently-rotating spindle having air-inlets in the
side thereof, and a reciprocating-piston, arranged in said spindle, to exhaust the
air from said spindle, and to cause a blank to adhere to said spindle, as and for
the purpose specified.
7. The combination of the intermittently-rotating hollow spindle, having air-
inlets in the side thereof, a slicker, means of causing said slicker to lay the edge of
a blank against said spindle over said air-inlets, and an intermittently-reciprocating
piston, arranged in said spindle, to exhaust the air from said spindle and to cause a
blank to adhere to said spindle, as and for the purpose specified.
Dated this 13th day of June A.D. 1895.
JOHN CHRISTOPER CORAM,
By Herbert Haddan & Co.,
18 Buckingham Street, Strand, W.C., London, Agents for Applicant.