Improvements in Apparatus for Taking up Slack of Rim-bands employed in Self-acting Mules and Twiners
Year: 1891

page_text: Date of Application, 1st Apr., 1891
Complete Specification Left, 23th Dec., 1891-Accepted, 6th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Taking up Slack of Rim-bands
employed in Self-acting Mules and Twiners.
We, WILLIAM LANCASTER of 71 Fletcher Street, Fitter, and JOHN WILLIAM
HALL of 34 Castle Street, Fitter, both of Bolton in the County of Lancaster, do
hereby declare the nature of our said invention to be as follows:-
This invention relates to improvements in apparatus for taking up slack of rim-
bands employed in self-acting mules and twiners by which a more regular twist will
be ensured to the yarn, and consists in mounting a carrier pulley in suitable slide
blocks disposed in slides in a fixing secured to the headstock or other convenient.
part of the mule. The carrier pulley rises and falls according to the tension on
the rim-bands and takes up the slack, by which the rim-bands are kept in contact
with the pulleys with little or no strain beyond the weight of the carrier pulley,"
centre, and slide blocks.
Dated the 31st March 1891.
EDMUND CHADWICK,
Agent.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Taking up Slack of Rim-bands
employed in Self-acting Mules and Twiners.
We, WILLIAM LANCASTER of 71 Fletcher Street, Fitter, and JOHN WILLIAM
HALL of 34 Castle Street, Fitter, 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 relates to improvements in apparatus for taking up slack of rim-
bands employed in self-acting mules and twiners by which a more regular twist
will be ensured to the yarn, and consists in mounting a carrier pulley in suitable
slide blocks disposed in slides in a fixing secured to the headstock or other
convenient part of the mule. The carrier pulley rises and falls according to the
tension on the rim-bands and takes up the slack, by which the rim-bands are kept
in contact with the pulleys with little or no strain beyond the weight of the carrier
pulley, centre, and slide blocks.
Fig. 1 is a side elevation of so much of a mule or twiner as is necessary to
explain and denote the position of our invention in relation to the rim-bands and
pulley.
Fig. 2 is an enlarged side elevation of our invention, and
Fig. 3 is a sectional plan through line A-B.
C is the rim shaft: D the rim pulley; E the rim bands, and F is intended to
represent the headstock of a mule or twiner. To the headstock F is secured the
fixing G to which is bolted the fixing H. The latter is provided with the slides I
in which are mounted the slide-blocks J. In the slide-blocks J is mounted the
centre K to which is secured the carrier pulley L. The lower end of the slides I
is provided with the cap M secured thereto by the set screws N. In the cap M is
mounted the screwed spindle O to regulate the amount of travel of the slide-
blocks J. The screwed spindle O is locked in position by the nut P. The carrier
pulley L with its centre K and slide blocks operate up and down in the slides I
according to the tension on the rim-bands E and takes up the slack, by which the

page_text: said rim-bands are kept in contact with the pulleys with little or no strain beyond
the weight of the carrier pulley L, centre K, and slide-blocks J. The fixing H can
be swivelled at any angle on the fixing G according to the requirements of the
rim-pulley D. -
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 :
In self-acting mules and twiners the use of the fixing H having slides I to receive
the slide-blocks J carrying the centre K and pulley L for the purpose specified,
substantially as described.
1001
EDMUND CHADWICK,
Agent.