Improvements in Twisting Frames for Yarns and Threads.
Year: 1897

page_text: Date of Application, 3rd Sept., 1897-Accepted 19th Feb., 1898
COMPLETE SPECIFICATION.
Improvements in Twisting Frames for Yarns and Threads.
We, FRANCISZEK KACZYNSKI, Locksmith, of No. 192/3, Warszawskastr, and
WALENTY JANKOWSKI, JANKOWSKI, Proprietor of a Technical Bureau, of No. 171,
Dozard Street, both in Czestochowa, Government Petrokow, Poland, Empire of
Russia, 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:-
-
This invention relates to a device for the automatic disengagement of the delivery
rollers in twisting frames of all kinds and consists of a peculiar system of levers
which is suspended from the thread in such a manner that the disengagement of
the delivery rollers takes place only at the complete breakage of the thread, but
not when the thread merely runs loose, for instance at the commencement and at
the end of the twisting. Further, entanglement with the neighbouring thread
is prevented.
In order that the invention may be the better understood we now proceed to
describe the same with reference to the accompanying drawings and to the letters
and figures marked thereon.
Figure 1 shews the device constructed for an English "dry" twisting frame.
Figure 2 shews the device constructed for English "wet" twisting frames.
Figure 3 shows a modification of the device constructed to suit certain forms of
twisting frames.
The whole arrangement is suspended by the angle piece A A¹, the hole N of
which serves for screwing the device to the frame of the machine. An angular
lever C pivots around the pin c¹ of the angle piece A. One end of the lever is
provided with the hook i for guiding the thread, and the other end may be
provided with a counter weight M. A lever pivotting around pins p¹ of the
angle piece A has a ping provided at its side carrying a fork k. As soon as this
fork comes between the delivery rollers e and f, the latter is disengaged, the roller e
being rotated by friction from the roller f.
The free end of the lever p engages by means of a pin with the eye E of the
angular lever C, Figures 1 and 2. The eye E is near the pin c of the angular
lever and controls the position of the lever p and consequently of the fork k.
According to the construction shewn in Figure 3, the lever p, which in this case
has two limbs, is connected with the lever C by the eye E which is provided at the
free end of the lever ? and surrounds the longer end of the lever C.
The course of the thread is shewn by dotted lines and arrows and it will be
easily seen that the whole arrangement is suspended directly from the thread.
When the latter becomes loose, the positions of the device is somewhat changed,
but the fork rod k does not enter between the delivery rollers e and f. When the
thread breaks, the lever C gives a sufficient thrust to the lever p, and consequently
o the fork k, to cause the latter to disengage the delivery rollers.
When the machine is stopped, and restarted, the movement of the thread causes
he lifting of the lever C into the operative position.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what we
claim is:-
First. A thread controller for twisting frames in which levers P, C are suspended
from, or held up by, the thread, with or without a counter balance weight M, in
such a manner that the levers strike out downwards and upwards respectively, only
when the thread breaks, in order to disengage the delivery rollers, and to enter into
action again automatically when the machine is restarted.
Second. A construction of the thread controller claimed in Claim 1 in which a
pivotted lever is connected with an angular lever C below it, resting upon &
guiding the thread by a hook i, and provided with a counter weight M to afford
the thrust necessary to press the fork carried by the lever p between the delivery
rollers e and f, in order to disengage the latter, which thrust is given only by the
lever p, when the thread breaks.
Third. Another construction of the thread controller claimed in Claim 1 in
which the fork k is arranged below the lever C and the eye E of the lever >>
surrounds the lever C substantially as described.
Dated this 3rd day of September, 1897.
FELL & JAMES,
Agents for the Applicants.