AN IMPROVEMENT IN SPINNING MULES
Year: 1884

page_text: We JAMES SCHOFIELD of the Town House Mill, Littleborough in the County of
Lancaster Cotton Spinner, and JOHN LAW of White Lees also of Littleborough
Mule Overlooker do hereby declare the nature of the said Invention for "AN
IMPROVEMENT IN SPINNING MULES" to be as follows:-
Our Invention relates to the Mules principally employed in the spinning of
cotton yarn and has for its object to obtain a better regulation of the winding on so
as to produce harder and more regularly wound cops. In the ordinary mule when
the winding on faller is moving downward it lowers and thereby slackens a chain
which when tightened relieves the counter faller of its load. If this slackening of
the chain does not take place sufficiently early in the downward progress of the
faller the load upon the counter faller is partly relieved so that the tension of the
yarn is unsufficient and the cops are loosely wound. This is especially the case when
the tips of the cops are being wound. To remedy this defect we arrange for the
chain to be lowered more rapidly by interposing a multiplying motion between one
length of the chain and another. In the simplest arrangement a pulley having
two diameters is interposed. The top chain connected with the faller is fastened
to the smaller pulley and the bottom chain which passes to the weight lever is
attached to the larger pulley.

page_text: 25
We JAMES SCHOFIELD of the Town House Mill Littleborough in the County of
Lancaster Cotton Spinner and JOHN LAW of White Lees also of Littleborough,
Mule Overlooker, do hereby declare the nature of the said Invention for AN
IMPROVEMENT IN, SPINNING MULES" 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:-
+
"
ין
Our Invention relates to the Mules principally employed in the spinning of
cotton yarniand has for its object to obtain a better regulation of the winding on so
as to produce harder and more regularly wound cops. In the ordinary mule when
the winding on faller is moving downward it lowers and thereby slackens a chain
which when tightened relieves the counter faller of its load. If this Blackening of
the chain does not take place sufficiently early in the downward progress of the
faller the load upon the counter faller is partly relieved so that the tension of the
yarn is insufficient and the cops are loosely wound. This is especially the case
when the tips of the cops are being wound. To remedy this defect we arrange for
the chain to be lowered more rapidly by intérposing a múltiplying motion between
one length of the chain and another.
1
In the accompanying drawing we have illustrated the arrangement we have
adopted when carrying our invention into practical effect. In the said drawing
a represents a portion of the mule carriage in section b. being the ordinary winding
on faller and c. the counter faller. The chain d. which lowers the load is attached
by one end to a projection from the locking catch. e. which is fixed upon the
winding faller shaft f. this- being an ordinary arrangement but instead of the
chain proceeding directly to the load lever g. the lower end of the said chain is
attached to a differential pulley h. This pulley is turned to two diameters and is
mounted to revolve upon a fixed stud. The chain d. is secured to the smaller
diameter of the pulley and to the larger diameter is secured one end of a second
chain . which is connected by its lower end with the load lever. It will be clearly
seen that at the 'times when the faller descends to cause the winding on the chain i.
will descend more rapidly than the chain d. the speeds of the two chains being in
proportion to the two diameters of the pulley h. This quicker descent of the
chain i. causes the load lever to be lowered more quickly in proportion to the
movement of the faller so that the load is brought to bear upon the counter fuller
shaft k. and thereby upon the counter-faller at an earlier period in the descent of
the winding on faller so that the necessary winding on tension of the yarn is
ensured at all times. We do not confine ourselves to the exact details so long as a
differential apparatus is interposed between the two chains d. and i. to cause the
latter to move more quickly than the former.

page_text: 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. The differential pulley h. applied substantially as and for the purpose set forth
and indicated.
2. In a mule applying a differential pulley or apparatus between the lever or
part on the winding faller shaft and the load lever and connecting such differential
pulley or apparatus by means of two chains or bands with the load lever and the
said lever or part substantially as and for the purpose set forth and indicated.