IMPROVEMENTS IN MACHINERY FOR Manufacturing paPER TUBES, SPECIALLY INTENDED FOR RING THROSTLES
Year: 1882

page_text: LETTERS PATENT to John Clayton Mewburn of 169 Fleet Street in the City
of London Patent Agent nud Consulting Engineer for an Invention of
"IMPROVEMENTS IN MACHINERY FOR Manufacturing paPER TUBES, SPECIALLY
INTENDED FOR RING THROSTLES Communicated to him from abroad by
M. Schaffhauser of Cernay, Alsace
"
PROVISIONAL SPECIFICATION left by the said John Clayton Mewburn at
the Office of the Commissioners of Patents on the 30th October 1882.
JOHN CLAYTON MEWBURN of 169 Fleet Street in the City of London Patent
Agent and Consulting Engineer, IMPROVEMENTS IN MACHINERY FOR MANU-
FACTURING PAPER TUBES, SPECIALLY INTENDED FOR RING THROSTLES [com-
municated to him from abroad by M. Schaffhauser of Cernay, Alsace]
27
The object of the improved machinery which forms the subject of this invention
is to manufacture the slightly conical and strong large paper tubes employed in
ibrostle frames, generally called ring throstles. These tubes whether used for
weaving or for winding have to be submitted to various manipulations which
quickly wear them out; on the other hand their weight would make the use of
them onerous if they could not be employed several times. It is therefore
necessary to employ for the manufacture of these tubes a hard thick paper the
resistance of which to pasting has hitherto only been overcome by hand work.
Now according to this invention, besides a thinuing of the edge of the paper
forming the outer generatrix of the tube, a thinness produced beforehand by a
preparatory machine, I give the paper two successive coats of paste; the first
which is given at the entrance of the machine prepares the paper and serves as it
were as a mordant to the second coat which is applied at the point where the paper
is rolled around the spindle into the form of a tube. In this way it is easy to
paste the hardest papers and the resistance of the tubes is increased by a larger
absorption of paste.
In addition to giving this double pasting the improved machinery is distinguished
hu at The emolarment of a turning or Disating ninner which gives to the

page_text: paper an obliquity which can be varied according to the cone or taper of the tubes.
The result is a considerable reduction of the waste or cuttings for the less conical
tubes. The use of the turning nipper also permits of the lower blade of the cutter
for the head being fixed and of separating therefrom the cutter which effects the
rectilinear oblique cut (these cutters would otherwise abut at the same point) and
consequently of enabling the rectilinear cut to be effected from the outer side of
the lower blade, thus allowing the corner or piece cut off to fall without further
manipulation. 2nd The arrangement of the cutter for the base which has its edge
directed contrary to the direction of the travel of the paper instead of being in the
line of this travel. This arrangement necessitates the application of a particular
movement for lifting the paper, which bends under the action of the upper blade,
above the lower blade of this cutter in order that it may continue its forward
movement.
.it
Having stated the nature of the invention I will now proceed to describe how
may be carried into effect.
The paper cut into bands or strips of suitable width is wound on a drum from
which after passing over rollers and a pasting roller which revolves in a trough of
paste, it is conducted between drawing rollers which give it a continuous move-
ment; a brush removes the excess pasto and a groove in one of the drawing rollers
prevents it spreading over the whole width of the strip of paper. The paper then
passes over a stretching roller placed at a variable height according to the strength
of the paper and sufficient to allow it to become suitably softened before reaching
the rolling up spindle. From this stretching roller the paper passes between
guides and enters between feed rollers which push-it-forward with an intermittent-
movement; a table or plate prevents the paper winding around the lower feed
roller while wires fixed to the upper guide and taking into grooves in the upper
feed roller prevent the paper winding around this roller. Continuing its travel the
paper is supported by the lower blades of the cutters as well as by another table or
plate and is conducted by this table and by wires between the jaws of a nipper-
which is capable of turning around an axis. A sufficient quantity of paper having
been fed the nipper closes and holds the paper and two levers are lowered for the
same object. Then the cutters respectively make the cuts for the base and head of
the tube causing thus a first waste composed of a curvilinear triangle. These two
cuts having been effected the levers before mentioned are raised leaving the paper
to the nipper which by turning or pivoting on its axis brings it to the lower fixed
blade of the rectilinear cutter upon which blade it is held by a lever while the
upper blade descends and separates from the piece of paper brought from the
nipper a second triangle thus giving to the paper cut for a tube the form of a
trapezium with two curved bases and minus one corner.
When the upper blade of the cutter for the head of the tube has separated the
curvilinear triangle as before described it remains closed long enough to allow the
turning nipper to carry off the piece of paper to be cut by the rectilinear cutter,
and it is only opened when the paper has been carried off by the second nipper
hereinafter described; the paper having been already pasted the triangle cut off
adheres to the cutter and would occasion waste; this is avoided by rubbing and
cleaning the cutter blade, at the moment it is raised, by a piece of caoutchouc on
the end of a lever which is worked by an excentric. When the upper blade of the
cutter for the tube base is raised a series of wires arranged very near the lower
blade are raised in their turn and lift above this blade the end of the strip of paper
from which the piece has been cut off; the strip can thus continue its forward
movement without striking against the lower blade.
The paper being thus prepared a second nipper mounted on a carriage having
a reciprocating intermittent rectilinear movement advances to the paper, and
when this nipper has reached the end of its travel a catch which keeps the
nipper open comes against a stop and the upper jaw is then forced down by a
spring and seizes. the paper. The turning nipper first described open, the lever
which holds the paper is raised and the carriage returning conducts the edge of the

page_text: paper into a groove formed in a spindle, a wire under which it passes ensuring its
entrance into the groove the entrance of which is suitably widened. This groove
extends not only the entire length of the spindle and its shaft but also into the
supports of this shaft.
The paper being thus engaged in the spindle the reciprocating nipper is opend
by an excentric and lever and the spindle receiving an intermittent rotary motion
begins to roll up the paper under the action of a compressor which tightens its
spirals very truly. At the moment this rotary motion commences the first part
of a sectional brush which becomes charged with paste from a plate (which dips at
each turn in a trough of paste) rubs against the spindle and charges it with paste;
this is kept back by the compressor and spreads over the whole surface of the
paper, the excess falling back into the trough. The second part of the sectional
brush on the contrary rubs at each turn against a bla-le carried by a lever which
is lowered to allow the part charged with paste to pass and again raised in order to
clean the second part of the brush; this in its turn cleans the tube at the last turn
of the spindle, the compressor having been previously moved away therefrom. The
tube having thus been rolled up and cleaned. the rotary motion of the spindle
ceases; a ring which surrounds the spindle very truly and which has a slit corre-
sponding with the groove of the spindle is then pushed by a rod worked from an
excentric; by this movement the tube is detached from the spindle and falls into a
receptacle placed to receive it.
The machinery of course comprises all necessary shafts, gearing and connections
for producing at the proper times the various movements herein before described.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Clayton Mewburn in the Great Seal Patent Office on the
25th April 1883.
JOHN CLAYTON MEWBURN of 169 Fleet Street in the City of London Patent
Agent and Consulting Engineer " IMPROVEMENTS IN MACHINERY FOR MANU-
FACTURING PAPER TUBES SPECIALLY INTENDED FOR RING THROSTLES
nicated to me from abroad by M. Schaffhauser of Cernay, Alsace)
"
(Commu-
The object of the improved machinery which forms the subject of this invention
is to manufacture the slightly conical and strong, large paper tubes employed in
throstle frames, generally called ring throstles. These tubes whether used for
weaving or for winding have to be submitted to various manipulations which
quickly wear them out; on the other hand their weight would make the use of
them onerous if they could not be employed several times. It is therefore
necessary to employ for the manufacture of these tubes a hard thick paper
the resistance of which to-pasting has hitherto only been overcome by hand
.work..
Now according to this invention, besides a thinning of the edge of the paper
forming the outer generatrix of the tube, a thinness produced beforehand by a
preparatory machine, I give the paper two successive coats of paste; the first which
is given at the entrance of the machine prepares the paper and serves as it were
-as-a-mordant-to-the-second-coat-which is applied at the point where the paper_is
rolled around the spindle into the form of a tube. In this way it is easy to
paste the hardest papers and the resistance of the tubes is increased by a larger
absorption of paste.
In addition to giving this double pasting the improved machinery is distinguished
by 1 The employment of a turning or pivoting nipper which gives to the
paper an obliquity which can be varied according to the cone or taper of the tubes.
The result is a considerable reduction of the waste or cuttings for the less conical
tubes. The use of the turning nipper also permits of the lower blade of the cutter
for the head being fixed and of separating therefrom the cutter which effects the
rectilinear oblique cut (these cutters would otherwise abut at the same point) and
consequently of enabling the rectilinear cut to be effected from the outer side of
the lower blade, thus allowing the corner or piece cut off to fall without further
manipulation. 2nd The arrangement of the cutter for the base which has its
edge directed contrary to the direction of the travel of the paper instead of being
in the line of this travel. This arrangement necessitates the application of a
particular movement for lifting the paper, which bends under the action of the
upper blade, above the lower blade of this cutter in order that it may continue its
forward movement.
Having stated the nature of the invention I will now proceed to describe with
the aid of the annexed drawings how it may be carried into effect.
Figure 1 is a vertical section and Figure 2 a plan of the machine. Figure 3 is a
cross section taken in front of the turning or pivoting nipper. Figure + represents
the parts for actuating the spindle. Figure 5 represents the compresser,
the second pasting devices and the parts for cleaning the circular brush hereinafter
described and the tube.
The paper cut into bands or strips of suitable width is wound on a drum a, from
which after passing over stretching rollers b and c and a pasting roller d which

page_text: revolves in a trough of paste, it is conducted between drawing rollers ef which
give it a continuous movement; a brush g removes the excess paste and a groove h
in the drawing roller ƒ prevents it spreading over the whole width of the strip of
paper. The paper then passes over a stretching roller i placed at a variable height
according to the strength of the paper and sufficient to allow it to become suitably
softened before reaching the rolling up spindle. From this stretching roller the
paper passes between guides jj and enters between feed rollers m n which push it
forward with an intermittent movement; a table or plate prevents the papor
winding around the lower feed roller n while wires kkk fixed to the upper guide j
and taking into grooves in the upper feed roller m prevent the paper winding
around this roller.. Continuing its travel the paper is supported by the lower
blades of the cutters o and q as well as by another table or plate pand is conducted.
by this table and by wires rr between the jaws 8 and t (Figure 3) of a nipper
which is capable of turning around an axis v. A sufficient quantity of paper laving
been fed the nippers closes and holds the paper and two levers uu are lowered
for the same object. Then the cutters o and respectively make the cut ay for
the base and the cute a¹ for the head of the tube causing thus a first waste
composed of the curvilinear triangle z a¹ b'. These two cuts having been effected
the levers u u are raised leaving the paper to the nipper 8 which by turning or
pivoting on its axis brings it to the lower fixed blade c¹ of the rectilinear cutter
upon which blade it is held by a lever el while the upper blade d' descends and
separates from the piece of paper brought from the nipper a second triangle f¹g'h¹
thus giving to the paper cut for a tube the form ƒ¹, i¹, j', k', g', that is to say a
trapezium with two curved bases and minus one corner.
7
The paper being thus prepared a second nipper m² (Figure 1) mounted on a
carriage n¹ having a reciprocating intermittent rectilinear movement advances to
the paper, and when this nipper has reached the end of its travel a catch o! which
keeps the nipper open comes against a stop p¹ and the upper jaw is then forced
down by a spring g' and seizes the paper. The nipper 8 opens, the lever e³ is raised
and the carriage returning conducts the edge f g of the paper into a groove
formed in the spindle r', a wire a¹ under which it passes ensuring its entrance into
the groove the entrance of which is suitably widened. This groove extends not
only the entire length of the spindle and its shaft but also into the supports of this
shaft.
The paper being thus engaged in the spindle the nipper is opened by an
excentric u and lever t' and the spindle r' receiving an intermittent rotary motion
begins to roll up the paper under the action of a compressor v¹ Figure 5 which
tightens its spirals very truly.. At the moment this rotary motion commences the
first part of a sectional brush ¹ which becomes charged with paste from a plate y¹
(which dips at each turn in a paste trough ¹) rubs against the spindle and charges
it with paste; this is kept back by the compressor and spreads over the whole
surface of the paper, the excess falling back into the trough a. The second part
of the brush on the contrary rubs against at each turn a blade a³ carried by a
lever b which is lowered to allow the part charged with paste to pass and again
raised in order to clean the second part of the brush; this in its turn cleans the
tube at the last turn of the spindle, the compressor having been previously moved
away therefrom.
The tube having thus been rolled up and cleaned the rotary motion of the
spindle ceases; a ring c³ which surrounds the spindle very truly and which has a
slit corresponding with the groove of the spindle is then pushed by a rod d³
jointed to a lever f which is itself pushed back by a roller g² carried by an
excentric h³ and is returned to position by a spring i; by this movement the tube
is detached from the spindle and falls into a receptacle placed to receive it.
is the main shaft of the machine; it carries the loose pulley and the fixed
pulley 1. m² m² are bevel gearing driving the longitudinal shaft nn; o³ is an
excentric acting on a roller fixed to the lever p³ jointed to the rod q' which.

page_text: connects it to the link keyed on the axis of the turning nipper 8 t; this is
acted on in the opposite direction by the spring & h is a double excentric in the
groove of which is engaged a roller fixed to the lever the end of which is
connected to the carriage n' by the rod t. u' is a cam opening the nipper Um¹
through the intermediation of the lever t'. u³ ³ are bevel gearing driving the
longitudinal shaft v² v. ² is the fly wheel.
:
The shaft carries:-The toothed wheel y² for giving the continuous circular
movement to the brush a by means of the wheel ; the excentric a³ separating
the compressor from the spindle 1; it is returned by the spring t³; the paste
plate y; the excentric b³ for bringing at the desired moment the blade a to the 1
second part of the circular brush ; this blade redescends of its own weight; the
toothed wheel c³ with stop disc giving the intermittent rotary movement to the
spindle by means of the pinion d³ and wheel e; the excentric f³ for lifting the
lever e; the excentric g³ acting on the piece n³ for allowing the nipper & to close
under the action of the spring o³; the excentric for lifting the blade d' of the 1
rectilinear cutter which is closed by a spring; a bevel wheel with stop disc
driving the pinion which carries the pinion k³; this effects the intermittent
movement of the feed rollers mn; the excentric l³ for opening the nipper 8 by
means of the lever m³; the bevel wheel p driving the drawing rollers fe by
means of the bevel wheel q³ and pinion ³.
On the longitudinal shaft n² n³ is the excentric u³ acting on a lever ³ carrying
at its end a piece of caoutchouc 23. When the upper blade of the cutter q for the-
head of the tube has separated from the paper the triangle z a¹ b' it remains closed
long enough to allow the nipper 8 to carry off the piece of paper to be cut to the
rectilinear cutter and it is only opened when the paper has been carried off by the
nipper ; the paper having been already pasted the triangle z a' b' adheres to the
cutter and would occasion waste; this is avoided by means of the lever v³ which
at the moment the blade q is raised causes the piece of caoutchouc a³ to rub and
clean the under side of the blade, under the action of the spring y³.
23 is an excentric for lifting the second lever u; a¹ is an excentric for opening
the cutter g which is closed by a spring; b' is an excentric for opening the cutter o
which is likewise closed by a spring; c is an excentric for lifting the first lever u;
dis an excentric for actuating the lever ee which carries at its end a set of
wires ƒ^ƒ^ƒ* suitably arranged and adjusted very near the lower blade of the
cutter for the tube base. When the upper blade of this cutter is raised the
wires fff are raised in their turu and lift above this blade the end of the strip
of paper from which the piece has been cut off; the strip can thus continue its
forward movement without striking the lower blade.
2
g is a wire for supporting the piece of paper while being removed to the spindle.
is the support of the table p and wires r is a cast iron bed or platform 4
supporting all the working parts of the machine; it has suitably arranged openings
to allow the waste cuttings to fall below the machine. - -
Having now described the nature of my said invention as communicated to me
and in what manner the same is to be performed I declare that I claim :-
First-Constructing machinery for manufacturing paper tubes in such manner
that two successive coats of paste are given to the paper substantially as herein-
before described with reference to the annexed drawings.
Second-Constructing machinery for manufacturing paper tubes with a turning
or pivoting nipper for giving to the paper an obliquity which can be varied
according to the cone or taper of the tubes to be manufactured, substantially as &
hereinbefore described with reference to the annexed drawings.
Third:-Constructing machinery for manufacturing paper tubes with a convex
cutter for cutting the base of the paper for a tube, that is to say, for cutting in a
direction contrary to the line of travel of the paper, and with means for then
lifting the paper to enable it to continue its forward movement substantially as 5
herein before described with reference to the annexed drawings. .

page_text: Fourth-The combination of parts arranged and acting substantially as herein-
before described with reference to the annexed drawings and forming an improved
machine for manufacturing paper tubes.
In witness whereof I the said John Clayton Mewburn have hereunto set my
hand and seal this twentieth day of April One thousand eight hundred and
eighty three.
J. C. MEWBURN (L.S.)