Improvements in Self Acting Mules and Twiners.
Year: 1892

page_text: Date of Application, 27th May, 1892
Complete Specification Left, 27th Feb., 1893-Accepted, 8th Apr., 1893
PROVISIONAL SPECIFICATION.
Improvements in Self Acting Mules and Twiners.
I. JOHN SPENLÉ, of No. 3 The Crescent, Salford, in the County of Lancaster,
Engineer, do hereby declare the nature of this invention, which has been com-
municated to me from abroad by Emile Hanhart, of Mulhouse, Alsace, in the
Empire of Germany, Engineer, to be as follows:-
This invention relates to self acting mules and twiners and the object of the
invention is to increase the firmness and consequently the weight of the cops being
spun without putting any undue strain upon the threads.
To effect this a small pulley is mounted upon the front end of the mule head-
stock which pulley carries in its inside a spiral spring the inner coil of which is
secured to the axis of the pulley, a rope or equivalent has one end fastened to
the rim of this pulley and is wound several times round its periphery while the
other end of the rope is fastened to a small lever keyed upon the counterfaller
shaft.
The spring is adjusted so that when the carriage is at the end of its outward
run the minimum tension is on the rope but as the carriage makes its inward run
the resistance of the spring increases constantly as the rope unwinds from the
pulley whereby the strain on the counterfaller increases gradually during the
whole time the carriage is running in, the greatest pressure being at the point where
it is most needed, that is, where the yarn is nearest the spindle, while the action of
the spring is almost nil when the backing off takes place.
The pulley is preferably made with two diameters the smaller of which is
intended for spinning coarse counts of yarn and the larger for fine counts, and in
order to further adjust the pressure exerted by the spring on the counterfaller the
rope may be attached to the lever at a variable distance from the faller shaft.
Dated this 26th day of May 1892.
H. B. BARLOW,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Self Acting Mules and Twiners.
I, JOHN SPENLÉ, of No. 3 The Crescent, Salford, in the County of Lancaster,
Engineer, do hereby declare the nature of this invention, which has been com-
municated to me from abroad by Emile Hanhart, of Mulhouse, Alsace, in the
Empire of Germany, Engineer, 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 self acting mules and twiners and the object of the
invention is to increase the firmness and consequently the weight of the cops being
spun without putting any undue strain upon the threads.
To effect this a small pulley is mounted upon the front end of the mule head-
stock which pulley carries in its inside a spiral spring the inner coil of which is
secured to the axis of the pulley, a rope or equivalent has one end fastened to
the rim of this pulley and is wound several times round its periphery while the
other end of the rope is fastened to a small lever keyed upon the counterfaller
shaft.
And in order that this invention may be fully understood and readily carried
iuto effect will describe the accompanying sheet of drawings reference being had
to the figures and letters marked thereon.

page_text: Figure 1 is a side elevation of part of a self acting mule fitted with the
improvements.
Figs. 2 and 3 are details on a larger scale of the pulley and spring and connection
to the counterfaller shaft.
Figs. 4, 5 and 6 are views of an arrangement applied in some cases to the
counterfaller shaft.
In Figure 1, a designates the headstock of the mule, the carriage, c the
spindles, the faller shaft, e the counterfalier shaft, is the small pulley of two
diameters mounted on the headstock, g is the spring coiled inside said pulley and
is the rope secured to and partly wound upon the pulley at one end and at the
other fastened to the lever fixed upon the counterfaller shaft e.
The spring g is adjusted so that when the carriage bis at the end of its outward
run the minimum tension is on the rope h but as the carriage b makes its inward
run the resistance of the spring y increases constantly as the rope h unwinds from
the pulley whereby the strain on the counterfaller e increases gradually during the
whole time the carriage is running in, the greatest pressure being at the point
where it is most needed, that is, where the yarn is nearest the spindle c, while the
action of the spring is almost nil when the backing off takes place.
The pulley is preferably made with two diameters as shown the smaller of
which is intended for spinning coarse counts of yarn and the larger for fine counts,
and in order to further adjust the pressure exerted by the spring on the counter-
faller the rope h may be attached to the lever i at a variable distance from its
faller shaft.
In cases where the counterfaller and faller shafts are actuated independently the
arrangement illustrated by Figs. 4, 5 and 6 may be employed in order to prevent
the counterfaller from rising above the tops of the spindles c. This arrangement
consists of a half moonj fixed on the counterfaller shaft e and a straight lever k
fixed upon the faller shaft d, the lever k being provided with a bowl m which
comes over the half moon j.
Having now particularly described and ascertained the nature of this said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The combination with a pulley mounted on the headstock and connected to
its axis by a coiled spring, of a rope or equivalent connected to a lever on the
counterfaller shaft all arranged and operating substantially as and for the purposes
herein set forth.
2. The general arrangements and combinations of parts embodying the improve-
ments substantially as herein described and as illustrated by the several drawings
annexed.
Dated this 25th day of February 1893.
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.