Improvements in or relating to Mules for Spinning.
Year: 1891

page_text: Date of Application, 8th Oct., 1891
Complete Specification Left, 4th July, 1892-Accepted, 13th Aug., 1892
PROVISIONAL SPECIFICATION.
Improvements in or relating to Mules for Spinning.
I, THOMAS ScowCROFT Junior of 5 Mortfield Lane, Chorley Old Road,
Bolton in the County of Lancaster, Piecer, do hereby declare the nature of my
said invention to be as follows:-
This invention refers to improvements in or relating to mules for spinning and is
designed to prevent the breaking of backing-off scrolls and the teeth or cogs of
backing-off wheels. This I effect by mounting loosely on the cylinder shaft a
lever with a finger to operate on stop-finger, by which the scroll can be rotated
without damaging the same, stop-finger, or backing-off wheel. This invention
allows of an extra revolution or part of a revolution being imparted to the said
parts, by which breakage is prevented and loss reduced to a minimum.
Dated the 7th October 1201
EDMUND CHADWICK,
Agent.
COMPLETE SPECIFICATION.
Improvements in or relating to Mules for Spinning.
1, THOMAS SCOWCROFT Junior of 5 Mortfield Lane, Chorley Old Road,
Bolton in the County of Lancaster, Piecer, do hereby declare the nature of my
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 and is
designed to prevent the breaking of backing-off scrolls and the teeth or cogs of
backing-off wheels. This I effect by mounting loosely on the cylinder shaft a lever
with a finger to operate on stop-finger, by which the scroll can be rotated without
damaging the same, stop-finger, or backing-off wheel. This invention allows of an
extra revolution or part of a revolution being imparted to the said parts, by which
breaking is prevented and loss reduced to a minimum.
Fig. I is a part plan of cylinder or backing-off scroll shaft of a self-acting mule
with my invention mounted thereon.
Fig. 2 is a sectional elevation through line S, T in Fig. 1, and
Fig. 3 is a side elevation of my invention made in halves.
A is the cylinder or backing-off scroll shaft; B the scroll; C the disc; Da set
screw; E my improved lever with finger G; H the stop finger; I the mule
carriage, and K the stop on the mule carriage for arresting the stop finger H.
Hitherto the stop finger H has been operated by the head or projection L of the
set screw D, and in case of undue strain, when the former is arrested by the stop K
on the mule carriage, numerons breakages are constantly taking place, such as,
either the disc C, scroll B, and the teeth or cogs of the backing-off wheel M, which
results in many stoppages and entails serious loss to both the operative and owner.
To minimise these breakages and stoppages to the least possible amount I mount
loosely on the cylinder or backing-off scroll shaft A the lever E with the projecting
finger G. The latter operates on the stop finger H; and as the projecting finger G
is the weakest part it will give way or break before the costly parts mentioned
above in case of undue strain when the stop finger H is arrested by the stop K on
the mule carriage I. The lever E is rotated on the cylinder or backing-off scroll
shaft A by the head or projection L of the set screw D. To facilitate the removal
of the lever E in case the same or its projection G breaks I construct the same in

page_text: halves as shown in Fig. 3, and secure the same together by the screws N. By thus
constructing the lever E the same can be removed and replaced without displacing
the cylinder or backing-off scroll shaft A and its adjuncts, thereby reducing
stoppages and the cost of repairs to a minimum.
Having now particularly described and ascertained the nature of my said inven- 5
tion, and in what manner the same is to be performed, I declare that what I
-claim is: :-
In combination with the cylinder or backing-off scroll shaft, backing-off scroll,
disc, and stop finger of self-acting mules, the use of the lever E with the projecting
finger G, applied and operating substantially as described and as shown on the 1
-drawings for the purpose specified.
Dated the and Tal– 1900
EDMUND CHADWICK,
Agent.