Improvements in or connected with the "Taking in Friction" of Self-acting Mules and Twiners.
Year: 1898

page_text: Improvements in or connected with the "Taking in Friction" of
Self-acting Mules and Twiners.
We, JOSEPH BOWKER, of Hope House, Kersal, Manchester, in the County of
Lancaster, Cotton Spinner, CHARLES BUTTERWORTH, of 17, Queen's Road, Oldham,
in the same County, Mill Manager, and THOMAS MCVAY, of 13, Busk Road,
Oldham, aforesaid, Mule Overlooker, do hereby declare the nature of this invention
to be as follows:-
«
Our said invention has reference to what is technically known as
the taking
in friction" of self acting mules and twiners. As is well known the function of
this taking-in friction is to effect the run in of the carriage during the operation
of winding the yarn upon the spindles. The taking in friction is composed of a
friction cone with which engages at times a hollow cone. The hollow cone is
capable of sliding vertically and is raised and lowered by means of a pivotted
forked lever so as to disengage and engage with the friction cone at the required
times.
At present the pivotted forked lever is operated by means of a cam shaft through
a cam lever and spring.
It is essential that the taking in friction should be disengaged and thrown out
of action just at the finish of the inward run of the carriage, so as to present no
obstruction to the run out of the carriage. It is found in practice that this does
not always occur, thus causing at times serious damage to the mule.
The object of our invention is to provide means whereby the disengagement of
the taking in friction is rendered certain and positive in its action and thereby
obviate any risk of injury to the mule.
In carrying our invention into effect we provide the pivotted lever which raises
and lowers the hollow cone with a pendent bracket carrying an antifriction bowl
adjustable at varying heights in a slot formed in the bracket. We also firmly
secure upon the "square" of the carriage a bracket or lever formed on its under
side with an inclined surface. This bracket or lever is so disposed that on the
inward run of the carriage the inclined surface comes into contact with the bowl
on the pendent bracket, depressing the outer end of the pivotted lever which thus
disengages the hollow cone from contact with the friction cone. This is effected
as the carriage is finishing its inward run and the taking in friction being thus
disengaged no obstruction is presented to the outward run of the carriage."
The bracket being fixed to the carriage results in a certain and positive dis-

page_text: engagement of the taking in friction at the proper time independent of the cam
shaft and thus provides for a more perfect working of the mule.
Total 1:1 1
exc
1000
Improvements in or connected with the "Taking in Friction" of
Self-acting Mules and Twiners.
We, JOSEPH BOWKER, of Hope House, Kersal, Manchester, in the County of
Lancaster, Cotton Spinner, CHARLES BUTTERWORTH, of 17, Queen's Road, Oldham,
in the same County, Mill Manager, and THOMAS MCVAY, of 13, Busk Road,
Oldham, aforesaid, Mule Overlooker, 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 and accompanying drawings:-
Our said invention has reference to what is technically known as
"the taking
in friction" of self-acting mules and twiners. As is well known the function of
this taking-in friction is to effect the run in of the carriage during the operation
of winding the yarn upon the spindles. The taking in friction is composed of a
friction cone with which engages at times a hollow cone. The hollow cone is
capable of sliding vertically and is raised and lowered by means of a pivotted
forked lever so as to disengage and engage with the friction cone at the required
times.
At present the pivotted forked lever is operated by means of a cam shaft through
cam, lever and spring.
It is essential that the taking in friction should be disengaged and thrown out
of action just at the finish of the inward run of the carriage, so as to present no
obstruction to the run out of the carriage.
It is found in practice that this does not always occur, thus causing at times
serious damage to the mule.
The object of our invention is to provide means whereby the disengagement of
the taking in friction is rendered certain and positive in its action and thereby
obviate any risk of injury to the spinning mule or twiner.
And in order that our invention may be more fully understood we will now refer
to the accompanying sheet of drawings in which it is clearly illustrated.
In the said drawings,
Fig. 1 is a side elevation of the mechanism whereby the "taking in" friction
is operated provided with our invention.
Fig. 2 is a view at right angles to Fig. 1 showing the mule carriage and the
parts of our invention only.
Figs. 3 and 4 are detail parts drawn to an enlarged scale.
Figs. 5 and 6 are plan and elevation respectively of one of the parts.
Figs. 7 to 9 represent modifications of our invention.
The taking in friction at present is operated by means of a cam a actuating a.
bell-crank lever b pivotted at 61. The lever b is connected by means of a rod c
to a pivotted lever d the forked end of which embraces a collar de formed on
the driving half e of the taking in friction. As shown in Fig. 1 the taking in
friction is engaged the driving half e of the friction clutch being held in engage-
ment with the driven half f by the pull of the spring g, assisted by the weight of
the driving half e.

page_text: As the carriage reaches the end of its inward run it is imperative that the taking
in friction should be released. This is at present effected by means of the cam a
the revolution of which causes the cam lever b to rock on its pivot b¹ in the
direction of the arrow thereby raising the driving half e of the "taking in"
friction.
and nut j
Should the cam a not effect this at the proper time the revolution of the scroll
shaft h is prolonged and continues when the carriage begins its outward run, the
scroll bands being thus strained and sometimes broken whilst the quality of the
yarn is impaired. To obviate this we secure a bracket i to the forked lever d the
bracket being formed or provided with a slotted plate or extension 2¹. Adjustably.
mounted within the slot is a stud j carrying an antifriction bowl 7. The stud
is secured to the extension of the bracket i by means of a washer
whilst a screw provided with a lock nut jo permits of the ready adjustment of
the stud in the slot. This will be more readily seen from an inspection of the
enlarged views Figs. 3 and 4. Turning now to Fig. 2, we mount on the carriage
square" a bracket or lever k formed at its projecting end with an incline upon
its under surface. A separate plan view and elevation of the lever k appears in
Figs. 5 and 6. The position of the lever k and the bowl jare so adjusted rela-
tively to each other that as the carriage is reaching the end of its inward run
the inclined surface of the lever k comes into contact with the bowl j¹ gradually
depressing the end of the forked lever d and as the carriage comes to rest raising
the driving half e of the taking in friction from engagement with its driven
half f. Thus no obstruction is presented to the outward run of the carriage.
06
It will be observed that we do not dispense with the usual cam a and lever b,
but the gist of our invention consists in providing independent means operated
from the carriage whereby the taking in friction is positively disengaged on the
completion of the run in of the mule carriage.
The method by which this is effected may be varied to some extent without
departing from the spirit of our invention.
For instance instead of securing a bracket to the forked lever d we might form
such lever with the requisite slotted extension ¹ as shown in Fig. 7. Or further,
instead of providing the lever d with a slotted extension as described we might
utilize, the connecting rod 7 which is secured to the lever d (see Fig. 2) and used
to operate the parts for locking the carriage during the time "backing off" is
taking place. To effect this we provide the connecting rod 7 with a filboe m
carrying an antifriction bowl n as shown in Figs. 8 and 9. The lever k as the
carriage comes to rest on its inward run comes into contact with the bowl n
depressing the rod and lever d thus raising the outer forked end of the lever and
disengaging the taking in friction.
The lever being fixed to the carriage results in a certain and positive dis-
engagement of the taking in friction immediately the carriage comes to rest on
its inward run independently of the cam a and thus provides for a more perfect
working of the spinning mule and twiner, and prolonging the life of the scroll
bands.
-
We are aware that it has been proposed to disengage the "taking in" friction
independently of the action of the cam a on the termination of the inward run
of the carriage by acting on one of a system of levers existing between the holding
out catch rod and the friction itself, we therefore lay claim to no such means.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is;-
1) Positively disengaging the " taking in" friction of spinning mules and
twiners by means of a lever or part secured to the carriage square arranged to
operate the forked lever controlling the driving half of the friction substantially
as described and shown.
2) The improved means for positively disengaging the "taking in" friction of

page_text: spinning mules and twiners consisting of a lever k secured to the carriage square,
bracket i secured to or forming part of the forked lever d and carrying an adjust-
able anti-friction bowl j¹ arranged and acting in the manner and substantially
as described and illustrated.
Dated this 2nd day of February 1899.
For the Applicants,
E. K. DUTTON & Co.,
Chartered Patent Agents,
5, John Dalton Street, Manchester.