Improvements in or relating to Self-acting Mules.
Year: 1897

page_text: Date of Application, 9th June, 1897-Accepted, 30th Oct., 1897
COMPLETE SPECIFICATION.
Improvements in or relating to Self-acting Mules.
I, ALFRED RIEHL, of Gobweiler, in Alsace in the Empire of Germany, Merchant,
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 device forming the object of this invention serves to break off in self-acting
mules coarse or double threads and to better stretch the threads.
This is attained by means of a metal-block arranged on the wire of the thread
guide or counterfaller wire, said block being provided for the passage of the thread
with an open inclined channel in combination with a hook arranged on a spring-lever
which is depressed during the return of the mule-carriage and depresses the threads
being spun together, the hook being automatically returned to its original position
by the spring attached to the lever when the carriage comes out.
In the accompanying drawing
Fig. 1 is a side-elevation of the block on the wire of the thread guide and of the
spring lever.
Figs. 2A 2B 2C are respectively front, back and plan views of the block.
Behind the drawing rollers there is arranged a spindle b extending the whole length
of the machine, said spindle carrying hooks d, by means of curved or sickle-shaped
arms a and a wire g stretched between them. Said arms normally remain in a
raised position, owing to the helical spring c acting on their lever-arms or
extensions .
When the carriage has nearly completed its inward course its cam-face h strikes a
rod a which moves the lever i and thus depresses the arms a' and the wire g and
hooks d. Owing to this movement the hooks d arranged between the separate threads
break off any double-threads that may have been formed through two adjoining
threads becoming spun into one double thread, owing to the fibres projecting and
catching together. When the carriage again begins its outward course, the cam-face h
releases the rod a, and the arms a¹ and hooks d are raised by the spring c. The
space in front of the first drawing roller is now completely free. The spinner can
therefore repair the broken threads without being obstructed by the device, just as
in ordinary self-acting mules. The cleaning rollers l, mounted in any suitable
manner, can be also easily removed.
In order to prevent the thick portions or the so-called coarse threads from being
wound up and to wind the yarn tightly, during spinning the thread passes through
the inclined slot of the block A of iron or other suitable metal. This block is secured
underneath on the thread guide or counterfaller wire f and has in its upper face an
open channel f formed at an angle (Figure 2º) which terminates at the back in an
inclined steep slot f11 (Figure 2).
Owing to the channel f¹ being made at an angle the thread is better stretched and
at the same time it is wound on to the spindle in a more compact and even manner,
besides the thread is cleared of loose threads by this block.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:-
:-
1. A device applied to self-acting mules for breaking off or clearing coarse or
double threads produced when two or more threads become spun together, characterised
by a metal block provided with an inclined channel or groove arranged on the thread
guide or counterfaller wire in combination with a hook as d which, as the carriage
approaches the roller beam, is depressed by a spring-lever a a¹ arranged at the end of
the carriage in order to break off the thread stretched by the metal-block and to
enable the hook to be automatically raised after it has broken off the thread
substantially as described.
2. The combination and arrangement of parts constituting the complete thread
breaking or clearing device for self-acting mules substantially as described and
illustrated in the accompanying drawings.
.
1
CL1007
BOULT & WADE,
Agents for the Applicant.