IMPROVEMENTS IN MULES AND TWINERS FOR SPINNING AND DOUBLING TEXTILE FIBRES
Year: 1885

page_text: Textile Fibres.
I JOHN CLEGG, of Asa Lees and Company; Limited, of Oldham, Lancashire,
Manager of the Mule Department, do hereby declare the nature of said Invention
for IMPROVEMENTS IN MULES AND TWINERS FOR SPINNING AND DOUBLING TEXTILE
FIBRES, to be as follows:-
The objects of my Invention are first, to drive the scroll of the drawing out
motion and the front spindle shaft independently of one another, secondly, in
mules in which double speed pulleys are used on the rim shaft to keep the backing
off cone and wheel out of contact or gear with one another while the strap is
travelling from the slow to the quick speed pulley, and when the strap has returned
to the loose pulley to automatically unlock and allow the backing-off to take place
and, thirdly, to connect the tin rollers of mules and twiners to the middle or driving
portion of the tin roller shaft in "the square," in such manner that the driving
shaft can be removed without disturbing the tin rollers or any of the parts on the
tin roller shaft.
In carrying the first part of my Invention into effect I prefer to drive the front
spindle shaft as usual by a train of wheels from a change pinion fixed on the rim
shaft, but I drive the large drawing out scroll gear or wheel from an independent
pinion fixed also on the rim shaft; this pinion drives a wheel fixed on a stud
mounted and free to revolve in an adjustable or swivel bracket; at the other end
of this stud is secured a change wheel which gears into and drives the drawing out
scroll gear.
By changing the wheel on the stud I am able to vary the speed of the drawing
out scroll independently of the front spindle shaft.
In carrying the second part of my Invention into effect I pivot an elbow lever,
weighted at one end, to the ordinary strap fork guide lever near its fulcrum; on
the backing off shaft is the ordinary lever for controlling the backing off motion;
the end of this lever is hooked or bent and free to rest upon a projection or plate
on the upper part of the strap fork guide lever or upon the upper part of the
pivoted elbow lever which lies against this projection and rather higher than it.
D

page_text: When the belt is on the slow speed pulley the hooked end of the backing off
lever rests on the top of the pivoted elbow lever where it remains until the belt
has been moved across to the quick speed pulley by the strap fork guide lever and
as this lever moves the projection on it comes under the backing off lever which is
thus latched behind the top of the elbow lever and locked or held there until the
belt has passed from the quick speed to the loose pulley and the backing off is
completed. The backing off lever is then raised, thereby allowing the weighted
elbow lever to slip under it and hold the hooked end of the backing off lever out of
gear until the backing off operation is repeated.
In carrying the third part of my Invention into effect I connect the stud or axis
of each tin roller to the middle or driving portion of the tin roller shaft by suitable
couplings or clutches and I mount this part of the tin roller shaft in bearings
covered by movable caps.
This arrangement admits of the portion of the driving shaft and the wheels on it
in "the square" being removed without displacing the tin rollers.
H. B. BARLOW,
Agent for Applicant,
4, Mansfield Chambers,
17, St. Ann's Square, Manchester.

page_text: COMPLETE SPECIFICATION.
Improvements in Mules and Twiners for Spinning and Doubling
Textile Fibres.
I JOHN CLEGG, of Asa Lees and Company, Limited, of Oldham, Lancashire,
Manager of the Mule Department, do hereby declare the nature of said Invention
for "IMPROVEMENTS IN MULES AND TWINERS FOR SPINNING AND DOUBLING
TEXTILE FIBRES, 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 improvements in mules and twiners for spinning and
doubling textile fibres and the objects of my Improvements are-
First, to drive the scroll of the drawing out motion and the front roller or spindle
shaft independently of one another.
Secondly, in mules, in which double speed pulleys are used on the rim shaft, to
keep the backing off cone and wheel out of contact or gear with one another while
the driving strap is travelling from the slow to the quick speed pulley and when
the driving strap has returned to the loose pulley to automatically unlock or
unlatch and allow the backing off to take place, and
Thirdly, to connect the tin rollers of mules and twiners to the middle or driving
portion of the tin roller shaft in the "square" or centre part of the machine in such
manner that the driving portion of the shaft can be removed when desired without
disturbing the tin rollers or any of the parts on the tin roller shaft.
And in order that my Invention may be fully understood and readily carried
into effect I will describe the accompanying Sheet of Drawings, reference being
had to the figures and letters marked thereon.
Figure 1 is a plan and Fig. 2 an end elevation of part of the headstock of
a mule illustrating the first part of my Invention.
Fig. 3 is a back view. Fig. 4 a plan and Fig. 5 a side view of my improved
mechanism applied to the backing off cone and backing off wheel of a mule
according to the second part of my Invention.
Fig. 6 is a plan of part of a mule or twiner showing the tin rollers connected to
the middle or driving portion of the tin roller shaft according to the third part of
my Invention and Fig. 7 is a view on an enlarged scale of one of the couplings
shown in Fig. 6.
In Figs. 1 and 2.-a is the rim shaft on which are mounted as usual the two fast
or fixed pulleys b and c for the slow and quick speeds respectively and the loose
pulley d as well as the change wheel e which is keyed on the shaft a and is geared
by the train of wheels e¹ e e³ and so transmits motion to the wheel e fixed on the
front roller shaft or front spindle shaft f: on the rim shaft a is also keyed a pinion g
which gears into and drives a change wheel h fixed on the stud i which is mounted
and is free to revolve in suitable bearings in the swivel bracket ¹ secured to and
adjustable on the frame or headstock j. At the other end of the stud i is fixed
the change wheel k which gears into and drives the wheel secured on the back
shaft and so rotates the drawing out scroll ³.

page_text: By changing either the wheel h or the wheel le fixed on the stud i I am able to
vary the speed at which the drawing out scroll 2 is driven without interfering with
or affecting the front roller or front spindle shaft for the gearing by which it is
driven.
In Figs. 3, 4 and 5.-a is the rim shaft and b, c and d the slow speed, quick
speed and loose pulleys respectively as shown in Figs. 1 and 2, the driving belt m
being shown on the slow speed pulley b; n is the ordinary strap fork guide lever
which is fulcrumed at n' and on which is formed the projection n²: also pivoted at
n' is the elbow lever o which is weighted at the other end o¹ so as to keep the
other end in contact with or bearing against the projection n³ on the strap fork
guide lever n, the end of the elbow lever o being rather higher than the said pro-
jection n'; on the backing off shaft p is keyed the ordinary clutch lever pi which
controls the backing off motion; the end of this lever p' is forked as usual and
rests in a groove in the boss q¹ of the backing off wheel q which is loose on a bush
loose on the rim shaft and free to be moved by the clutch lever p¹ into gear with
the cone on the quick speed pulley c; at the other end of the backing off shaft p is
fixed the arm or lever p³ the end of which is hooked or bent and is free to rest
upon the upper end of the elbow lever o. When the belt m is on the slow speed
pulley b the hooked end of the arm p² rests on the top of the pivoted elbow lever o
where it remains until the belt on has been moved across to the quick speed pulley c
by the strap fork guide lever n and as this lever n moves, the projection n² on it
moves the pivoted elbow lever o and as the projection comes under the hooked end
of the arm p² the latter slips off the end of the elbow lever o on to the projection n³
and is latched behind the top of the elbow lever o. The hooked end of the arm p²
rests on the projection n² and is locked or held behind the top of the elbow
lever o until the belt m has been moved by the strap fork guide lever n from the
quick speed pulley c to the loose pulley d when as the projection n' moves from
under it the end of the arm p² slips between the projection n' and the top of the
elbow lever o and the backing off takes place.
When the backing off is completed in the usual manner the shaft p is caused to
turn on its axis as usual by a spring or other means (not shown) thereby causing
the clutch lever p¹ to move the backing off wheel q out of gear with the cone
on the quick speed pulley c and at the same time raising and unlatching the
hooked end of the arm p² and allowing the weighted elbow lever o to slip under
and again support the hooked end of the arm p² thus holding the backing off
wheel out of gear with the quick speed pulley c until the backing off operation
is repeated.
In Figs. 6 and 7. is the middle or driving portion of the tin roller shaft
mounted in suitable bearings in the carriage end fixings 8, the said bearings being
covered by movable caps t; the tin rollers are secured to their studs or axes v
which are connected to the ends of the tin roller shaft r by the couplings w, one of
which is shown in section in Fig. 7; one half of each coupling is keyed and secured
to the shaft r and the other half of the coupling to the end of one of the studs v,
and the halves of the couplings are fastened together by the bolts x. Any suitable
couplings may be employed in place of the couplings w.
"
This arrangement admits of the middle or driving portion of the tin roller shaft r
with the wheels or gears on it (not shown in the Drawings) being removed from
'the "
* square or centre of the machine without disturbing the tin rollers u by
simply releasing the bolts x, unfastening the couplings w, and uncovering the
bearings of the shaft by slackening and taking off the caps t.
Having now particularly 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
1. Driving the drawing out scroll 2 independently of the front roller or front
spindle shaft ƒ by means of a separate train of wheels or gearing connected with

page_text: and receiving motion from a separate pinion on the rim shaft a, substantially as and
for the purposes herein described and as illustrated by Figs. 1 and 2.
2. In mules in which pulleys for two speeds are employed, the combination
with the strap fork guide lever n provided with a projection n' and the pivoted
weighted elbow lever o, of the arm or lever p³ which is secured to the backing off
shaft P and which controls the backing off motion, substantially in the manner and
for the purposes herein described and as illustrated by Figs. 3, 4, and 5.
3. The use and application of the pivoted weighted elbow lever o, or its
equivalent, substantially in the manner and for the purposes herein described and
as illustrated by Figs. 3, 4 and 5.
4. In a mule or twiner, the method of connecting the studs or axes v of the tin
rollers u by means of the couplings w, or other suitable couplings, to the middle or
driving portion of the tin roller shaft r, substantially as and for the purposes
herein described and as illustrated by Figs. 6 and 7.