Improvements in Ring-spinning-machines..
Year: 1888

page_text: Date of Application, 3rd Sept., 1888
Complete Specification Left, 3rd June, 1889-Accepted, 3rd Aug., 1889
PROVISIONAL SPECIFICATION.
Improvements in Ring-spinning-machines..
I, CARL HERRMANN MARTIN HAMEL of Rochlitzerstrasse, Chemnitz, in the Empire
of Germany, Manufacturer, do hereby declare the nature of this invention, to botas
follows:-
This invention relates to improvements in ring-spinning-machines and has for its
purpose to produce a finer, softer and more elastic thread than is the case with similar
machines hitherto employed.
In the improved arrangement the roving is fed from behind to the drawing rollers,
as in any other spinning machine, and stretched. When leaving the last pair of
cylinders which it has to pass, the stretched roving- receives immediate twist by being
conducted direct to the top of the free head of the spindle which is placed at sufficient
height whence it surrounds a few times spirally the upper free part of said head and
passes over a knob provided below the latter or over the head of a bobbin. Thereby
the spun thread is taken from the upper free part of the spindle and conducted to
'the traveller to be wound up.
On actuating the machine the spindle does not take more thread at the top than
is supplied by the drawing cylinders; the thread therefore springs over the head of
the spindle exactly in the same manner as with the self-actor..
The tension of the thread between the spindle-head and the cylinders can be
regulated by raising or lowering the spindle; this purpose may however also be
attained by employing lighter or heavier travellers.
It is evident from the above that with the improved arrangement, the traveller does
not as heretofore, impart the twist to the thread and simultaneously wind it up through
its friction on the ring, but that the spindle itself gives the twist to the thread and the
traveller has but to wind it on the bobbin or tube."
Dated this 2nd dow of Santomlion 1988
HUELSER & Co.,
Agents to Applicant.
COMPLETE SPECIFICATION.
Improvements in Ring Spinning-machines.
I, CARL HERRMANN MARTIN HAMEL, of Rochlitzerstrasse, Chemnitz in the Empire
of Germany, Manufacturer 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 object of this invention is an improvement in ring spinning-machines having
for its purpose to allow the latter to produce a finer, softer and more elastic thread
than could heretofore be produced with ring spinning-machines.
In the improved arrangement, illustrated by the accompanying drawing, the roving
is supplied from behind to the drawing rollers, as in any other spinning machine, and
stretched. The stretched roving, on leaving at the last pair of rollers, is given
immediate twist by the spindle d provided at sufficient height which receives the
thread direct with the top of its free head a x and causes it to coil a few tinies
spirally round the latter.
Thus however the inconvenience arises, that when the botton portion of the cop is
being filled, the thread, owing to its steep position, is subjected to greater friction on
the spindle, than, while the upper portion of the cop is being filled by the traveller,
the thread forming in its latter position a larger angle with the axis of the spindle.
The greater the friction the thread has to undergo on the spindle the heavier must be
ונb

page_text: the traveller.
A heavy traveller however produces an excessive strain on the piece of
thread between the spindle and rollers c when the cop is nearly filled and the
friction of the spindle diminished, which results in frequent breaking of the thread
and irregular spinning.
To obviate these drawbacks, I cause the thread f to leave the spindle s always at
the same place, whether the traveller is in its highest or in its lowest position. The
thread is taken off the spindle s by aid of a knob or cap k provided at a corresponding
height on the spindle and having such a diameter as to allow the cop tube / to be put
on with facility.
When the machine is set in motion, the spindle d does not take more thread at the
top. a, than is yielded by the drawing rollers; the thread therefore springs exactly in
the same manner over the top a of the spindle d as with the self-actor.
The thread "between the rollers c and the spindle top a can be giver. more or less
tension by raising or lowering the spindle d or in any other convenient manner.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
A ring spinning-machine, in which the thread coiled several times about the top of
the spindle is caused to leave the latter always at the same height by means of a knob
or cap attached to the spindle, for the purpose of rendering the friction of the
thread on the latter independent of the relative position of the traveller filling the
cop, substantially as set forth.
Dated this 3rd day of June 1889.