Improvements in Spinning Mules.
Year: 1894

page_text: Date of Application, 26th Jan., 1894
Complete Specification Left, 26th Oct., 1894-Accepted, 1st Dec., 1894
PROVISIONAL SPECIFICATION.
Improvements in Spinning Mules.
We JOHN EDMUND BOTTOMLEY Mule Overlooker, of 14 Green Lane
Chadderton, ALBERT STOTT, Mill Manager, of 18 Moston Road, Chadderton,
and JAMES DEWHURST of Sedgley Villas Chadderton, Secretary, do hereby
declare the nature of this invention to be as follows:-
The object of this invention is to increase the production of a spinning mule.
According to our invention we mount upon the tin roller shaft a "friction" or
brake one half of which is moved in or out of gear by a suitable incline or cam
surface fixed thereto and capable of a partial revolution on the said tin roller shaft
and provided with a peg or projection which is actuated by a hanging lever
mounted on the mule frame and connected by a link or rod to the backing off lever
or other suitable part of the backing off mechanism. The cam is thus caused to
act simultaneously with the backing off motion and as it works against fixed studs
or bowls it slides on its shaft and so moves the friction into gear exactly at the
required moment and by this means the tin roller is stopped instantly and the
backing off can be effected much more quickly than before.
As soon as the friction or brake has been applied the hanging lever as it moves
upon its pivot rises away from the projection on the cam, so that the latter can be
returned by the reversal of the tin roller shaft and move out the "friction."
We would here remark that we do not wish to limit ourselves to the exact
details of mechanism herein described as they may be varied without departing
from the principle of our invention, which is the application to the tin roller of a
" friction or brake actuated through a link or other suitable connection by the
backing off lever or other suitable part of the backing off motion, by which means
the backing off is accelerated and the production of the inule is increased.
Dated this 9th day of April 1894.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Spinning Mules.
We JOHN EDMUND BOTTOMLEY Mule Overlooker, of 14 Green Lane
Chadderton, ALBERT STOTT, Mill Manager, of 18 Moston Road, Chadderton,
and JAMES DEWHURST of Sedgley Villas Chadderton, Secretary, 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 object of our invention is to increase the production of the spinning mule by
arresting the motion of the tin roller shaft, rimshaft, carrier pulleys and rim band,
(previously to "backing-off") in less time than by the ordinary arrangement.
In order that our invention and the means whereby the same may be carried into
practical effect may be more readily understood we have hereunto annexed two
sheets of drawings of the same as applied to what is known as a "Platts" self-
acting mule, and we will now proceed to describe the same with the assistance of
the various figures and letters of reference marked thereon.

page_text: On Sheet 1 of the drawings Fig. 1 is a side view, partly in section, and Fig. 2 is
a plan of so much of a self-acting mule, as is necessary for the illustration of our
invention and the manner in which it may be carried into effect.
Fig. 3 is a view (partly in section) as seen when standing behind the mule, and
Fig. 4 is a side view (also partly in section) as seen when standing at the left hand
side of the headstock; both of these views being drawn to an enlarged scale.
On Sheet 2 of the drawings Fig. 5 is a side view and Fig. 6 is a back view,
respectively, of a modification of our invention of the friction brake hereinafter
more particularly referred to.
Figs. 7, 8, 9 and 10 are diagrams, showing the various positions of the lever (for
putting the conical friction brake into gear,) and of the brake friction viz.:
1st. (Fig. 7) at the completion of the outward run of the carriage, 2nd. (Fig. 8)
when the brake has been applied and the tin rollers are stopped previously to
"backing off," 3rd. (Fig. 9) when the "backing off" has been partly completed
and the brake friction returned to its normal position, and 4th. Fig. 10 when the
backing-off" is completed and the spindle carriage has just commenced its
inward run.
6
In accordance with our invention a conical friction brake (c) (d) is mounted on
the tin roller shaft a. The internal half d of this conical friction brake is mounted
loosely on the tin roller shaft a but is capable of moving only through a small
angle of motion on its axis on the tin roller. The external half c of the conical
friction,brake is secured to the tin roller shaft a.
When the mule carriage (not shewn), which is mounted as usual on the
"square" (B), is making its outward run, the friction cones c d are kept out of
contact partly by a coiled spring d² which tends to cause it to turn in a direction
opposite to that indicated by the arrow 1 (Fig. 4) and partly by the inclined face of
the slots d do which gear and un-gear it with the half of the friction cone c, which
is secured to the tin roller shaft a and rotates with it.
During the outward run of the carriage the tin roller shaft a rotates in the
direction indicated by the arrow 1 Fig. 4.
'
When the carriage arrives at the end of its outward run, a stud de fixed on the
internal half of the conical friction brake d comes into close proximity to a lever f
mounted on the framing of the headstock A (see Fig. 7). This lever fe is
connected by a rod f³ with the "backing-off" lever so that when the backing-off
lever moves to put the "backing-off" friction cones into contact, the rod f³ and
lever will move with it in the direction indicated by the arrow 2, and striking
the stud do in the internal half d of the conical friction brake c d will cause the
said internal half d of the conical friction brake c d to turn slightly on its axis so as
to make a partial revolution in the direction indicated by the arrow 1, Fig. 4.
This angular movement of the conical friction brake c d will by means of the
inclined slots d' d' (forming part of the internal friction cone d) cause it to move
end wise on the tin roller shaft a, and so bring it into contact with the rotating
half c of the conical friction brake c d, when the internal friction cone d will receive
motion from the rotating friction cone c, but only to a very slight extent.
This movement of the internal friction cone d by means of the inclined slots d', d'
and the studs e e' will cause it to be pressed still more forcibly into contact with the
revolving cone c, each side of the slots acting as an inclined plane.
The movement of the internal cone d being limited to a small angle of motion by
the ends of the inclined slots d d arriving in contact with the studs e e', the
further rotatory movement of the internal cone d will be arrested and its function
as a brake will cominence, and the motion of the tin roller will be quickly
arrested.
The reversal of the tin roller for "backing-off" will cause the internal friction
coned to be moved in the opposite direction to that indicated by the arrow 1
Fig. 4. This movement of the internal friction coned will by means of the inclined
slots d d and studs ee which act upon the said inclines, cause the internal friction
cone d to be moved endwise on its axis, when the two halves of the friction brake

page_text: will be separated, and the external friction cone c will be free to rotate with the
tin roller whilst "backing off" and the action of the internal friction cone & will
cease.
The spring d already referred to as having a tendency to turn the internal
friction cone d in the direction opposite to that indicated by the arrow 1, more
completely effects the separation of the two halves of the friction brake c d so as
to give them plenty of clearance, and brings the ends of the inclined slots d' d³ into
contact with the studs e e' when the further rotary movement of the cone d will be
arrested.
Thus the movement of the "backing-off" apparatus on the headstock causes the
friction brake c d to be brought into contact with each other, when the remainder of
the engagement is automatically effected, and on the reversal of the tin roller for
backing-off the cones c d are automatically and positively disengaged by means of
the inclined slots d' d' and studs e e' already referred to.
The modus operandi is as follows:-
:
During the outward run of the carriage the friction cones c, d are disengaged.:
On the arrival of the carriage at the end of its outward run, the movement of
the "backing-off "lever to put the "backing-off" cones into gear will cause the
lever to move the stud d and with it the internal friction cone d which will cause
the cones e d to be brought into contact with each other, whereupon the movement
of the tin roller will be more quickly arrested and the "backing-off" begin.
The movement of the tin roller for "backing-off" will then cause the cones c d
to be separated by means of the inclined slots d' d and the studs e e¹ and the
spring d², when the further action of the brake will be arrested until again required
at the end of another stretch.
The positions of the lever in relation to the stud d' at the various stages of the
operation are shown by the diagrams Figs. 7, 8, 9 and 10.
Fig. 7 shows the position of the parts at the moment the backing-off" lever is
moving to put the "backing-off" into operation.
Fig. 8 shows the position of the lever and stud d when the "backing-off"
cones have been put into gear.
Fig. 9 shows the position of the lever f
cone d has been disengaged.
and the stud de after the internal friction
Fig. 10 shows the position of the parts immediately after the mule carriage has
commenced its inward run.
The further movement of the carriage will cause the stud de to lift up the lower
end of the lever f to permit the stud d to pass under it, after which the lever f
will return to its normal position, the slot in the end of the rod (see Fig. 4)
permitting of this movement of the lever so that when the carriage completes
its next outward run the position of the parts will be that shown in Fig. 7.
It will be evident, that instead of controlling the friction brake by means of the
backing-off" lever, it may be connected to and controlled by any other suitable
part of the "backing-off" motion.
A modification of our invention is shown in Figs. 5 and 6.
In this modification the studs e e¹ instead of being mounted in fixed and
stationary supports, are mounted upon the arms of the lever g which is carried by
the fixing g'. The movement of the lever g in one direction is limited by the arm 9³
of the lever g bearing upon a fixed stop g³.
A spring his secured at one end to an arm g of the lever and at its other end is
secured to the fixing g'. This spring tends to keep the arm g² of the lever y
against the stop g³.
When the internal friction cone d engages with the external friction cone c the
inclined slots d' d' which bear upon the studs e el tend to force the studs e e' in the
direction indicated by the arrow 3, Fig. 5.
By this means the amount of pressure with which the inclines d' d' are capable
of forcing the internal friction cone d against the external friction cone c is limited
by the force of the spring h.

page_text: This arrangement also provides, to some extent, for the wearing down of the
friction cones, without the necessity of readjusting the studs e e'.
When the friction cones cd are being disengaged, the studs e e¹ become solid,
because the movement of the lever g in the direction contrary to that indicated by
the arrow 3 is prevented by the stop g³, and thus the studs e el positively disengage
the friction cones c d as in the previous arrangement.
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 :—
First. The general construction and arrangement of the apparatus for more
instantaneously arresting the motion of the tin roller shaft rimshaft, carrier pulleys
and rimband of a spinning mule previously to "backing-off" consisting essentially
of a self-disengaging friction brake connected to the tin roller shaft and controlled
by means of the "backing-off" lever or other suitable part of the "backing-off"
motion.
Secondly. We claim the construction and use of self-disengaging apparatus
applied to the friction brake for the purpose of arresting the motion of the tin
roller previously to "backing off" substantially as hereinbefore described and
indicated in and by the accompanying drawings.
Dated this 25th day of October 1894.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicants.