An Improved Coupling for Spindle Laces or Cords of Spinning and Twisting Frames.
Year: 1892

page_text: Date of Application, 17th May, 1892
Complete Specification Left, 24th Jan., 1893-Accepted, 13th May, 1893
PROVISIONAL SPECIFICATION.
An Improved Coupling for Spindle Laces or Cords of Spinning and
Twisting Frames.
;
I, JOSEF SCHMIDLIN, of Hohenborn, near Pyrmont, in the Empire of
Germany, Business Manager, do hereby declare the nature of this invention to be as
follows:-
My invention relates to a coupling for spindle laces or cords of spinning frames
twisting frames and the like.
The object of my said invention is to produce a coupling for spindle laces or
cords by which I not only obtain a greater durability of the laces or cords, but
may also considerably increase the rotary velocity of the spindles and may
immediately put in new laces or cords in case of breakages without having to stop
the operation of the machine.
All these advantages are obtained by connecting the ends of spindle laces or
cords not as heretofore by tying but by means of a hook and eye which are
attached to the said ends.
In silk throwing or twisting machines it was heretofore not possible to impart to
the spindles a greater rotary velocity than from 800 to 1000 revolutions a minute,
because at a higher speed the spindle laces or cords were thrown by their knots
from the pulleys which occasioned great disturbances in the operation and also a
great wear of the laces or cords.
With spinning frames it is similar although the admissible rotary velocity of
the spindle is greater than in the silk throwing or twisting machines, as the friction
of the laces or cords upon the rollers is not so great as in the latter class of
machines.
A further disadvantage of the coupling for spindle laces or cords which as
heretofore employed is that in case a lace or cord breaks the whole machine must
be stopped for the purpose of renewing the same, as the tying together of the ends
during the movement of the machine is impossible by reason of the great friction
between the spindle lace or cord and the drum.
•
By my improved coupling for spindle laces or cords these defects are completely
obviated. As the lace or cord the ends of which are connected by a hook and eye
is of uniform thickness throughout its length the spindles may receive &
considerably greater rotary velocity than heretofore whereby the capacity of the
machine is of course proportionately increased.
Trials have shown that in silk throwing or twisting machines the spindles,
instead of making 1000 revolutions a minute as hitherto, may now make at least
3000 revolutions a minute.
When a lace or cord breaks a new one may be put in without any necessity of
stopping the machine. For this purpose the lace or cord, which has a definite
length and is provided with a hook and eye, is first drawn round the drum and
then hooked together. Next the spindle is raised a little and then the spindle
lace or cord is put from below upon the driving pulley. Finally the spindle is put
back to its original position. In this manner a great saving of time is also
realized.
Accordingly the improved coupling for spindle laces or cords contributes very
materially to the perfection of spinning and twisting frames and is therefore of
very great importance for the textile industry.
The dimensions of the hook and eye are determined by the thickness of the lace
or cord as it is essential to obtain a perfectly uniform surface.
The spindle is held in a bearing and its lower end rests in a step bearing. Upon

page_text: '
the spindles are the driving pulleys to which all the laces or cords pass from the
drum.
If a new lace or cord is to be put in during the movement of the frame it is
first drawn round the said drum and hooked together. Then the spindle is raised
until the driving pulley strikes against the first-mentioned bearing. The spindle
lace or cord is next drawn from below over the spindle and put upon the driving
pulley, whereupon the spindle is put back to its original position. By these
operations no disturbance is occasioned in the working of the frame.
Dated this 17th day of May 1892.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Coupling for Spindle Laces or Cords of Spinning and
Twisting Frames.
I, JOSEF SCHMIDLIN, of Hohenborn, near Pyrmont, in the Empire of Germany,
Business Manager, 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 a coupling for spindle laces or cords of spinning frames
twisting frames and the like.
The object of my said invention is to produce a coupling for spindle laces or
cords, by which I not only obtain a greater durability of the laces or cords, but may
also considerably increase the rotary velocity of the spindles and may immediately
'put in new laces or cords in case of breakages without having to stop the operation
of the machine.
All these advantages are obtained by connecting the ends of spindle laces or
cords, not as heretofore by tying, but by means of a hook and eye which are
attached to the said ends.
In silk throwing or twisting machines it has heretofore not been possible to
impart to the spindles a greater rotary velocity than from 800 to 1000 revolutions
a minute, because at a higher speed the spindle laces or cords were thrown by their
knots from the pulleys which occasioned great disturbances in the operation and
also a great wear of the laces or cords.
With spinning frames it is similar although the greatest admissible rotary
velocity of the spindles is higher than in silk throwing or twisting machines, as the
friction of the laces or cords upon the rollers is not so great as in the latter class of
machines.
A further disadvantage of the coupling for spindle laces or cords as heretofore
employed, is that in case a lace or cord breaks the whole machine must be stopped
for the purpose of renewing the same, as the tying together of the ends during the
movement of the machine is impossible by reason of the great friction between the
spindle lace or cord and the drum.
By my improved coupling for spindle laces or cords these defects are completely
obviated. As the lace or cord, the ends of which are connected by a hook and eye,
is of uniform thickness throughout its length the spindle may receive a considerably
greater rotary velocity than heretofore, whereby the capacity of the machine is of
course proportionately increased.
Trials have shown that in silk throwing or twisting machines the spindles,
instead of making 1000 revolutions a minute as hitherto may now make at least
3000 revolutions a minute.
When a lace or cord breaks a new one may be put in without the necessity of
stopping the machine. For this purpose the lace or cord, which has a definite
length and is provided with a hook and eye, is first drawn round the drum and then

page_text: hooked together. The spindle is then raised a little and the spindle lace or cord is
put upon the driving pulley from below and the spindle is finally put back to its
original position. In this manner a geat saving of time is also realized.
Accordingly the improved coupling for spindle laces or cords contributes very
materially to the perfection of spinning and twisting frames and is therefore of
very great importance in the textile industry.
In the accompanying drawing I have shown how my said invention may be
conveniently and advantageously carried into practice.
Figure 1 shows the two ends of a spindle lace or cord connected by means of my
improved coupling.
Figure 2 is a diagram showing the manner in which the spindle lace is put upon
the driving pulley.
a designates the spindle lace which is provided at one end with a hook b, and at
the other end with an eye c (Fig. 1).
The dimensions of the hook and eye are determined by the thickness of the lace
or cord as it is essential to obtain a perfectly uniform surface.
Referring to Figure 2 d designates the spindle of a spinning machine, it is held
in a bearing, and its lower end rests in a step bearing 9. Upon the spindle d is
secured the driving pulley h to which the lace or cord passes from the drum i.
If a new lace or cord is to be put in during the movement of the frame it is first
drawn round the said drum i then brought to the position shown in dotted lines in
Figure 2 and hooked together. The spindle d is then raised until the driving
pulley strikes against the bearing f. The spindle lace or cord is next drawn
from below over the spindle pulley whereupon the spindle is returned to its original
position. By these operations no disturbance is occasioned in the working of the
frame.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
In spinning and twisting machines the employment of spindle laces or cords
which are united at their ends by means of a hook and eye whereby a greater
durability of the laces or cords is effected, an increased rotary velocity of the
spindles is admissible and the insertion of fresh laces or cords is rendered possible
during the movement of the machine, as the laces can, in the closed state, after
lifting the spindles from below, be put on the driving pulleys.
Dated this 94th day of Tenue 1902
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.