Improvements in or relating to Mules for Spinning.
Year: 1892

page_text: Date of Application, 17th Mar., 1892
Complete Specification Left, 15th Dec., 1892-Accepted, 18th Feb., 1893
PROVISIONAL SPECIFICATION.
Improvements in or relating to Mules for Spinning.
We, WILLIAM Howarth of 61 Victory Street, Commission Agent, and JAMES
THOMAS SHARPLES of Bank House, Kay Street, Merchant, both of Bolton in the
County of Lancaster, do hereby declare the nature of our said invention to be as
follows:-
This invention refers to improvements in or relating to mules for spinning cotton
and other fibrous substances, and has for its object that of automatically increasing
the pressure on the underfaller when spinning on the thick part of the cop, and for
gradually easing the action of the underfaller when spinning on the cop nose as the
mule carriage makes an inward run, by which snicks, snarls, cut or weakened yarn, and
other waste are reduced to a minimum, and larger and better cops are produced than
hitherto. This we effect by mounting in the mule carriage a shaft provided with a
scroll or its equivalent, round which is wound a band. The ends of the latter are
firmly secured to fixings attached to the mule room floor, and in such positions as
will allow of the travel of the mule carriage. Owing to this band being stationary
the scroll and shaft are rotated by the travelling action of the mule carriage. To
the back side of the mule carriage is fitted a bearing to which is pivoted a lever or
levers extending to the front of the mule carriage, being coupled to the under-
faller by means of a lever, band or strap, and a rod. On the lever or levers is
mounted a sliding weight, to each end of which is secured a band or its equivalent
attached to or wound round the aforesaid scroll shaft. As the mule carriage is
making an outward run the weight is slid by the bands from the back side to the
front side, by which the full pressure of the sliding weight is put on the under-
faller. When the mule carriage is making an inward run the sliding weight is
gradually moved backwards by the band being wound round the scroll shaft, by
which the pressure of the weight is gradually released from the under faller. The
sliding weight is of the taper form to allow of the rising and falling movements
demanded by the action of the underfaller. To the front side of the sliding weight
is fixed an adjusting screw and slide to which the band or its equivalent is
attached, and by which the position of the weight and the tension of the band may
be regulated to a nicety according to the requirements of the counts of yarn being
spun.
Dated the 16th March 1892.
EDMUND CHADWICK,
Agent.
COMPLETE SPECIFICATION.
Improvements in or relating to Mules for Spinning.
We, WILLIAM HOWARTH of 61 Victory Street, Commission Agent, and JAMES
THOMAS SHARPLES of Bank House, Kay Street, Merchant, both of Bolton in the
County of Lancaster, do hereby declare the nature of our said invention and in
what manner the same is to be performed, to be particularly described and
ascertained-in and by the following statement :-
This invention refers to improvements in or relating to mules for spinning cotton
and other fibrous substances, and has for its object that of automatically increasing
the pressure on the underfaller when spinning on the thick part of the cop, and for
gradually easing the action of the underfaller when spinning on the cop nose as the
mule carriage makes an inward run, by which snicks, snarls, cut or weakened yarn,

page_text: bands or straps D¹ and D' by the brackets G¹ and bolts H¹, the other ends of the
same being attached to and wound round the scroll shaft E. The sliding weight C'
is held in position on the levers Q by the stays E' as shown in Fig. 4. The ends
of the stays E' are bent as shown in Fig. 4 to allow of additional weights F" being
placed thereon as in dotted lines in Fig. 2, according to the weight required for
the counts of yarn being spun. The weights F¹ are provided with the slots S' to
fit on the bent end of the stays El.
•
This invention operates as follows:-When the mule carriage C is out at full
stretch as shown in full lines in Fig. 1 the sliding weight C₁ is imparting its
greatest weight or pressure on the underfaller when spinning is being performed
on the thick part of the cop. Owing to the bands I and J being stationary
the scroll G and shaft E are rotated in the direction indicated by the arrow by the
travelling action of the mule carriage C when making an inward run. When the
mule carriage C is making an inward run the band I is unwound from the scroll G
and the band J is wound thereon. When performing this operation the rotation of
the shaft E causes the band or strap D to be wound round same and unwinds
band D', by which action the sliding weight C' is automatically slid back on its
carrying levers Q, thus gradually easing the action of the underfaller when
spinning on the cop nose as the mule carriage makes an inward run, and assumes
the position shown in dotted lines in Fig. 1 when the latter is completed, thus
reducing snicks, snarls, cut or weakened yarn and other waste to a minimum, and
by which harder and better cops are produced than hitherto. When the mule
carriage C is making an outward run the apparatus operates in a contrary direction
and gradually slides the weight C¹ outward to increase the weight on the under-
faller, and so on, the automatic operations being repeated by the movements of the
mule carriage C.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. Automatically operating or adjusting the weight or pressure on the under-
faller by means of a sliding weight actuated to and fro on its support or supports
by the movements of the mule carriage, for the purposes specified, substantially as
described.
2. The combination and arrangement of parts constituting our invention for
automatically operating or adjusting the weight or pressure on the underfaller,
substantially as and for the purposes herein described and as illustrated in the
drawings.
Dated the 10th December 1892.
EDMUND CHADWICK, F.I.C.P.A.,
Agent.