Improvements relating to Twisting and Doubling Frames.
Year: 1894

page_text: Date of Application, 10th Aug., 1894-Accepted, 29th Sept., 1894
COMPLETE SPECIFICATION.
Improvements relating to Twisting and Doubling Frames.
I, GEORGES MICHEL SCHREIBER, of Czestochowa, Poland, in the Empire of
Russia, Mill 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:-
The present invention relates to a device for indicating the breakage, and
preventing the twisting of threads in twisting frames.
As is known, when a thread breaks on leaving the cylinder in twisting frames,
it is liable to fly over to another thread and get twisted with same, there
being consequently not only much waste, but, also, very many bad places in the
threads.
In the present invention, however, an indication is given immediately a thread
breaks and the feed roller simultaneously stopped, so that not only is there no
unnecessary waste, but bad places in the threads are reduced to a minimum, it
being made possible to twist threads of any degree of fineness or quality, including
cheviot threads, without having to fear any defections in same. The invention also
does away with the customary under roller.
I will describe my invention with reference to the accompanying drawings in
which:
Fig. 1 is a side elevation
Fig. 2 a back view
Fig. 3 a side elevation of the apparatus showing the position of the apparatus when
a thread is broken
Figs. 4, 5 & 6 are details
Fig. 7 shows the apparatus as fitted to a frame, and,
Fig. 8 the same on the breakage of a thread.
The apparatus consists essentially of a frame or support A, the lower or
horizontal arm of which is provided with two pins G and H projecting in a
horizontal direction. Attached to pin G is a moveable wire C having at its lower
end a loop C' and provided at its upper end with a tab Z of leather, indiarubber or
other similar material.
Attached to pin H is a second wire B the one end of which is passed through
the loops C¹ and provided with a counterweight J whilst the other end is
provided with a guide piece P. The piece P can be soldered or otherwise attached
to the wire B and is slightly hardened in the places where friction is caused
by the threads; the wires B and C can either be of steel or other suitable
material. The mode of fastening said wires B and C to the horizontal pins is
preferably by means of springs D in order that the wires cannot tip out of
position.
E is a small guide plate located immediately above the spindle and c a projection
from the bar F of the frame to serve as rest for the end of the wire C bearing the
tab Z when the apparatus is in the position shown in Fig. 7. K is a lever for
moving the bar F.
The mode of operation of my invention is as follows:
When double threads are used, the same are first passed through the larger
groove a of the support or frame A and thence between the feed roller W and
cylinder X whence they pass through the smaller_groove & and b¹, over the guide
piece P, through the plate E on to the spindle. The rotary or twisting movement
of the threads is thus perfectly free, said threads being drawn at a speed in
proportion to the rotary motion of the spindles which is, in itself, sufficient to start
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page_text: the apparatus by releasing the tab Z from between the feed roller and cylinder by
pressure on the guide piece P.
The wires B and C work in unison owing to the end of the one being passed
through a loop at the end of the other; consequently, when the counter-weight J
causes the end P to move upwards owing to there being no pressure of a thread on
this latter, the loop C¹ is drawn downwards which causes the upper end of the
wire C to move inwards so that the tab Z engages between the cylinder X and feed
roller W. So long as the thread remains intact the tab Z keeps clear of the feed
roller and cylinder owing to the pressure of the thread on the piece P forcing the
wire C outwards; immediately a thread breaks, however, the counter-weight J falls
and causes the tab Z to engage between the feed roller W and cylinder X which are
thereby stopped. In this way there is neither any waste nor any twisting with the
neighbouring threads.
The simplicity of the apparatus is such that it works with the utmost certainty,
imperfections in the threads being impossible. The person in charge of the frame
must see that all the tongues are clear before starting the same, said tongues being
made to rest on the projection c. The invention is intended principally for use
in twisting frames which are run at high speed with small distances between the
spindles and is so exact that loose turning cannot occur and even a loss of power
by breakage or other accident to the driving strap is at once indicated by the
apparatus.
Having now 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:
A device for indicating the breakage, and preventing the twisting of different
threads in twisting frames and consisting of a frame or support A, wire levers B
and C, guide piece P, tab Z, and pins G and H in combination with springs D, feed
roller W, cylinder X, bar F, projection c and lever K substantially as shown and
described.
Dated this 10th day of August 1894
J. E. EVANS-JACKSON & Co.,
Agents for the Applicant.