Improvements in the Preparation and Treatment of Composite Filaments Obtained by Combining a Paper Strip with a Fibrous Thread.
Year: 1898

page_text: Date of Application, 20th Dec., 1898-Accepted, 23rd Sept., 1899
COMPLETE SPECIFICATION.
Improvements in the Preparation and Treatment of Composite
Filaments Obtained by Combining a Paper Strip with a Fibrous
Thread.
I, EMIL CLAVIEZ, of Plagwitz, near Leipsic, in the Empire of Germany, Manu-
facturer, 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 present invention relates to improvements in the preparation of paper
coated filaments and apparatus therefor, and is a further development of the
process and apparatus set forth in my prior Application for Letters Patent
No. 22244 of 1898.
1.
This process, as set forth in the specification alluded to, is designed to produce
a durable yarn suitable for spinning purposes from a paper film surrounding
a core of any suitable fibre. The process of the manufacture of the composite
thread is set forth in the prior patent alluded to, in which two methods of pro-
ducing the composite filament are illustrated and described by way of example.
In the present application I have illustrated and described the improved process
as applied in connection with a filament prepared substantially according to the
moditication illustrated in Figure 2 of the prior patent. After the twisting of
the thread has taken place it is found to be necessary to subject it to a series
of finishing operations, and these operations form the subject of the present
Application for Letters Patent.
In order to set forth my invention more clearly I have illustrated it in the
accompanying drawings in which :-
Figure 1 represents the entire combination in the form of a double machine,
the left half of which is shewn in section, and the right half in side elevation.
Figure 2 shews the improved spindle and bobbin mechanism on a larger scale.
The composite thread composed of a strip of paper and of a core or filament
of any suitable material passes from the bobbin A and is twisted by the revolution
of the flyer F as set forth in Specification No. 22244 of 1898, and illustrated in
Figure 2 thereof. The twisted thread then passes through an eyelet x to a
guide roll c. From this roll the thread passes over a roller d, which roller dips
constantly in a receptacle e which is filled with a suitable liquid, such for instance
as starch or the like. By means of a steam pipe & the said liquid can be kept
at boiling point, and the level thereof can be regulated by means of the tube 7.
After the thread has received its requisite moistening by means of the roll d,
the said thread is so arranged that the surrounding paper envelope can be
firmly pressed upon the core, and in such a manner moreover, that a perfectly
round thread is produced which will be suitable for any desired weaving
operation.
pro-
In order to effect the rounding of this thread, and on the other hand to press
the paper cover perfectly upon the inner core of fibrous material, there is
vided the mechanism f. This mechanism consists of two pairs of rollers marked
respectively 1, 2, and 3, 4 over which are stretched the calendering bands. By

page_text: means of the two calendering bands the thread already prepared by the moisten-
ing roller is guided and rolled or calendered perfectly round and smooth, so
that it is available for further use. This calendering device may be of a con-
struction well-known in connection with similar machinery. The rollers are
driven by a train of gearing or other convenient actuating device, and means
are provided for moving the rame and rollers to and fro in a plane perpendicular
to the axial line of the thread as shewn in the drawing, so that by the friction
between the calendering bands the thread is thoroughly well finished and
rounded.
Atter the thread has passed through the rolling or calendering device, it is
wound upon the bobbin h. The support of this bobbin is so arranged that it
is carried by a lever g, which lever when in the position of action, as shewn on
the left hand side of the drawing, allows the bobbin to rest upon a friction
roller i, so that owing to the friction between the bobbin h and the roller t, the
winding up of the paper thread is effected. The lever g is moreover provided
with a stop lever g₁ having on one side a projection z. If then the lever be
moved in the direction of the arrow I it will carry with it the lever g¹, and
consequently the projection z catches in a corresponding projection 2¹, and the
lever will take the position shewn in the accompanying drawing on the right
hand side; the filled bobbin can consequently be removed at the corresponding
moment, and be replaced by an empty one.
I
Finally, with regard to the driving of the spindles, this is effected from a
shaft W upon which the drum T is supported, which drum acts by means of
a suitable strap or rope upon the pulley s of the spindle a.
In order to be able to effect the instantaneous stoppage of the bobbin A itself
in the event of the thread breaking or other disturbance of the operation,
pressure is applied to the lever m, and this in the direction of the arrow II
(Fig. 1). By this means the connecting links no are moved, and cause the
lever P to press up the spring r. This pin reappears on the inside of the
flyer, and is brought by the rotation in contact with the second pin 1 firmly
fixed on the under part of the sleeve S (Figs. 1 and 2).
The bobbin A being loose on the spindle has the Hyer I normally revolving
round it, but when the pin strikes against r¹ it causes the bobbin to rotate
with the flyer, and the delivery of the yarn immediately ceases. By means of
this device it is possible to produce a well rounded thread, which corresponds
in every respect to the requirements of the weaving industry, and which moreover
is not inferior to the ordinary textile threads either in strength or in pliability.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:
1. The improvement in the production of a textile thread of paper, with a
fibrous core composed of a paper strip coiled on a suitable filament substantially
as set forth, comprising essentially the passing of the said thread from the
spindle a over guides (a, c) to a moistening roller such as d for the purpose of
duly cementing the thread, and thence to a rolling or calendering apparatus
such as f in which the thread is rolled, finished, and rounded; and finally winding
it on a bobbin such as h by suitable means such as for instance the friction
roller controlled by the lever g substantially as described, and shewn.
2. In the apparatus set forth in Claim 1, the arrangement for putting out of
action the spindle a which effects the twisting, consisting essentially of the
lever apparatus no so, arranged that when the lever m is depressed, the
lever presses up the pin inside the flyer F, and thus causes it to strike
against a second pin r attached to the bobbin sleeve, during the rotation of the
flyer, effecting the immediate stoppage of the drawing off of yarn from the
bobbin in the case of a thread breaking or other interruption of the working,
substantially as described.

page_text: 3. The improved apparatus for treating composite threads of paper with a
fibrous core constructed and operating substantially as described, and shewn in
the accompanying drawing.
Dated this 20th day of December 1898.
W. P. THOMPSON & Co.,
322, High Holborn, London, W.C., Patent Agents for the Applicant.