Improvements in Self-acting Mules.
Year: 1895

page_text: Date of Application, 29th Oct., 1895-Accepted, 7th Dec., 1895
Improvements in Self-acting Mules.
I, FREDERICK WILLIAM GOLBY, of 36 Chancery Lane, in the County of
Middlesex, Patent Agent, do hereby declare the nature of this invention and in
what manner the same is to be performed, as communicated to me by Heinrich
Richard Beyer, of Mühlenstrasse 7, Leipzig-Plagwitz, Germany, Spinning
Overseer, to be particularly described and ascertained in and by the following
statement:-
The twist regulators applied to self-acting mules have as is well known the
object of giving another turn (extra twist) to the thread on the completion of the
carriage-run and to maintain constantly the number of the spindle revolutions
during the successive carriage removals. This contrivance has hitherto been
arranged on the main axle of the self-acting mule. In this manner however it
failed in its object as although the number of revolutions of the main axle were
maintained unchangeably during the successive removals of the carriage a constant
number of revolutions of the spindle driving drum could not be attained because
the twist regulator disregarded the gliding of the drum string on the drum.
By the present invention a constant number of revolutions of the drum axle will
be maintained during the successive carriage removals, notwithstanding the gliding
of the drum string, by the twist regulator being worked by the drum axle.
-
In the accompanying drawings
Fig. 1 is a side elevation of a self-acting mule with the twist regulator worked
by the drum axle during the carriage run; Fig. 2 is a plan & Fig. 3 an end
elevation of the same.
Fig. 4 is a plan view similar to Fig. 2 with the carriage at the end of the
carriage run.
Fig. 5 is a side elevation of the apparatus without the mule during the carriage-
run, in enlarged proportions; and Fig. 6 is a similar view of the same during the
return of the carriage.
"
66
n
Let it be observed that the displacement of the driving band from the loose
pulley "" to the fast pulley "k" is generally brought about in the self-acting
mules of different systems by an excentric " m tightly wedged on the axle "."
Also that the shifting of the driving band from the fast pulley "k" to the loose
pulley "" is brought about by means of the spring
which has one end
fastened to the framework and the other to the lever "2" which is tightly wedged
on the axle "o," whereby a frictional contact between the roller" P on the
lever" and the excentric m is obtained. The axle "," which, as is well
known, controls the whole of the reversing gear apparatus, accomplishes a half
revolution at the end of the carriage run and return.
"
g
"
The worm ""fixed on the drum axle a gears with a worm wheel "c" which
together with the cog wheel "c" is fast on a subsidiary axle. The cog wheel "L"
is in gear with the cog-wheel "2" fast on the axle "d." The crank "
"fixed on
the axle "d" sets the lever "e" to be found above it (as shown in fully detailed
construction in Fig. 3) in swinging motion. The lever "e" is bent twice and
swings round "e¹."
"
On the underside of the main axle "W" and fixed fast to the axle o is a lever
arm "h" to which the shipper rod "r is linked (see Figs. 3, 5 & 6). The shipper
rod r carries the regulating block "g" which has a lateral projection "1" at its
end. This lateral projection "g" lies under the head "" of the stop lever "/"
cr

page_text: "
which revolves round "f2." If the lever head "f" be raised the rod "r" can glide
forwards.
The drum axle " a "driven by the drum string "T" from the main axle "W"
turns with steady speed and the carriage is moved uniformly outwards by the usual
means. The shipper rod ""lies during the carriage run out with its lateral
projection "g" under the lever bead "f1" (see Figs. 2 and 4) and is held by it.
As soon as the carriage nears the end of its run the reversing gear axle "/"
makes a half revolution as already described; thereby the roller "p" is removed
from contact with the excentric"
m."
The driving band would now run on to the
loose pulley "i" by means of the spring "n "of the lever "" which tends to turn
the axle " o and thereby bring the spindle drum to a standstill. This however is
prevented by the lever head "" which lies before the lateral projection "g 1."
By this means the spindles continue to revolve with the same speed and impart
an extra twist to the yarn.
"
a
"
tr
cog-
The release of the shipper rod " "and the consequent shifting of the driving
band respectively which correspond with the completion of the spindle revolutions
is effected by the crank "q" which after a certain number of revolutions of the
drum axle with the co-operation of the worm
worm wheel "
"C"
wheels " & c2" and lever "e" raises the stop lever "f." When the carriage is run
out, as shewn in Fig. 4, the lever "e" lies immediately under the head "fi" of the
lever ""which it raises so that the lateral projection "1" of the regulating
block "g" can glide away from under the lever head “ƒ” and the shifting of the
driving band is effected by the spring "n."
In this position the lever head "71 rests with its oblique front surface on the
sideways bent end "g" of the rod " r as shewn in Fig. 6. The roller "p
now advanced again by the excentric " m and the lateral projection "g¹
accordingly pushes itself under the lever head "f" by raising the same &
gliding beneath it.
1 "
"
"
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19
"
Having now particularly described & 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
(1.) A self-acting mule the twist regulator of which is worked from the drum
axle for the purpose of maintaining a constant number of revolutions of the drum
axle notwithstanding the gliding off of the drum string and thereby to attain e
uniform thread substantially as described and illustrated in the accompanying
drawings.
↑
(2.) In self-acting mules a contrivance for the working of the twist regulator
from the drum axle consisting of a worm "b" fixed on the latter which operates a
crank * arranged on the mule carriage in such a manner that after a certain
number of revolutions of the drum axle the crank operates a lever which reises a
stop lever "" whereby the rod "" which holds fast the shifting fork of the
driving hand is released, so that the main driving band is shifted from the fast to
the loose pulley and the spindle driving drum brought to a standstill, whilst by
means of the shifting back of the driving band to the fast pulley the rod "" is
again taken up by the stop lever, all the parts being arranged substantially as
described & illustrated in the accompanying drawings.
Dated this 29th day of October 1895.
F. W. GOLBY,
36 Chancery Lane, London, W.C.