An Improvement in Spinning Spindles.
Year: 1890

page_text: Complete opornication LG, UL cut rav πονομεύκ
COMPLETE SPECIFICATION.*
An Improvement in Spinning Spindles.
I, JOSEPH AUGUSTE ROUGE, Engineer, of Remiremont, Department des Vosges
in the Republic of France, 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
In continuous ring spinning frames the rotation of the runner is caused by the
thread connected to the bobbin which revolves with the spindle. The runner having
a certain weight and revolving at great speed on the stationary ring, requires that
the thread should have sufficient strength which must be greater when the bobbin
is of small diameter, the radius being considered a lever arm acting in the direction
in which the runner moves. Notwithstanding great lightness of the runner and low
speed of the spindle it has not been found possible thus to spin very fino yarns,
and that only on hobbins of considerable diameter.
The arrangement which forms the subject of the present invention is based on a
principle which may be considered the opposite of the above, since for the existing
arrangement a runner cannot be made small enough to have less weight to drag,
whereas for my arrangement the runner must have certain weight depending on the
size of the thread, the speed of the spindle and the minimum diameter on which the
thread is to be wound."
Fig. 1 of the accompanying drawings is a sectional olevation of a spindle
according to my invention and Fig. 2 is a plan of its top.
On the top of the spindle I place a pioco (which I may term "crown," arranged
to turn with the spindle and having à part constructed like the rings employed in
the smallest spinning frames, say from 10 to 20 millimetres, according as a pirn or
bobbin has to be wound. On the crown is placed a very light runner A which is
caused to revolve by its hold on the crown caused by the bulging tendency of the
thread.
a
The thread besides being passed through the runner A is also passed through
runner B placed as in the ordinary spinning frames. As the spindlo turns carrying
round the runner A, the runner B is also carried round by the thread which, with the
two runners, forms as it were the wing of a flyer. The runner B being of suitable
weight offers certain resistance to the rotation of A causing it to revolve with angular
velocity less than that of the spindle, this difference of velocity causing the winding
on. The most suitable runners are those which produce an angular velocity equal to
or preferably (in order to obtain a bobbin sufficiently hard) somewhat less than that
necessary for winding on the smallest diameter of the bobbin. When the diameter is
greater, the speed of B which becomes insufficient is made up by the drag of the
bobbin thread on B causing sufficient strain on the thread to form a good bobbin
while at the same time there is little bulging of the thread. The strain on the thread
necessary to effect the rotation of the runner B being very small, a very weak thread
can be used winding on a very small diameter.
In an experiment made with a spindle which when bare was 7 millimetres in diameter,
and with a low quality of No. 20, the bobbin well made without any breaking could

page_text: not be unwound by hand notwithstanding overy precaution, so weak was the thread,
which had too little twist. The bulging being inconsiderable this arrangement admits
of working without thread guides.
The spindle being tapered, a height of contact of 3 millimetres is sufficient, for
fixing the crown on it so as to rotate with it; the crown being taken off overy time
a wound bobbin has to be removal. The runner A may be variously shaped. To
provent the thread from being hooked to the outer end of the runner A, it is of
advantago to make it of the shape shown in Fig. 3 or any other shape suitable for
avoiding this inconvenience attending runners of the usual shape.
Instead of the crown with runner, a special runner might be placed on the top of |
the spindle, having sufficient adhesion to it.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declaro that what I
claim is :-
The described method of twisting and winding a yarn, by use of a spindle furnished
at its top with a crown turning with the spindle and carrying a runner which, being
connected by the yarn with the lower runner on the ring gives the lower rummer a
certain rotary motion, and thus allows of spinning fine and weak yarns.
Dated this 5th day of September 1890.
ABEL & IMRAY,
Agents for the Applicant.