Improvements in Self Acting Mules and Twiners.
Year: 1894

page_text: Date of Application, 20th Sept., 1894
Complete Specification Left, 14th June, 1895-Accepted, 20th July, 1895
Improvements in Self Acting Mules and Twiners.
I, ROBERT CLEGG, of Soho Iron Works, Oldham, in the County of Lancaster,
Foreman of Mule Department, do hereby declare the nature of this invention to
be as follows :—
"My invention relates to self acting mules and twiners for spinning and doubling
fibrous materials, and the object of my invention is to equalize the strain or weight
upon the yarn whilst being wound upon the spindles; during the inward run of the
carriage.
To effect this object I dispense with the usual concentric half pulleys fixed upon
the counterfaller shaft, and in their place I employ half pulleys the peripheries
of which are eccentric to their centre.
The operation is as follows:-
The eccentric half pulleys are secured to the counterfaller shaft, and to their
small diameters are attached the chains or straps which connect the pulleys to the
salmon head levers; when the counterfaller wires are in their lowest position, that
is, near to the points of the spindles, the position of the eccentric pulleys is such
that the chains hang from their largest diameter; but when the backing off
operation begins the counterfaller wires rise and thus the half pulleys, being
secured upon the counterfaller shaft are moved so as to move away their larger
diameter from the chains, and cause the chains to pass from a larger to a smaller
diameter of the pulleys. By this means the weight, or pressure exerted by the
salmon head levers upon the faller wires is reduced and consequently to whatever
height the faller wires rise the strain on the yarn remains practically the same.
·Dated this 19th day of September 1894.
Improvements in Self Acting Mules and Twiners.
I, ROBERT CLEGG, of Soho Iron Works, Oldham, in the County of Lancaster
Foreman of Mule Department, do hereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
My invention relates to self acting mules and twiners for spinning and doubling
fibrous materials, and the object of my invention is to equalize the strain or
weight upon the yarn whilst being wound upon the spindles during the inward run
of the carriage.
To effect this object I dispense with the usual concentric half pulleys fixed upon
the counterfaller shaft and in their place I employ half pulleys the peripheries of
which are eccentric to their centre.
And in order that my invention may be fully understood and readily carried into
effect 1 will describe the accompanying sheet of drawings reference being had to
the figures and letters marked thereon.

page_text: The drawing represents part of the carriage of a self acting mule or twiner with
a weighting or salmon head lever connected by a chain to my improved eccentric
half pulley secured to the counterfaller shaft.
a represents the counterfaller shaft, b one of my improved eccentric half pulleys,
of which there are several, secured to the counterfaller shaft by a set screw c,
and d is a set screw by which a chain e is secured to the smallest diameter of the
eccentric half pulley b, the chain passes over the half pulley b and its other end is
secured to the weighting or salmon head lever f, pivoted to a bracket bolted to
the mule carriage h..
The drawing represents the position of the eccentric half pulleys when the
counterfaller wire, not shown, is in its lowest position, that is to say, near to the
points of the spindles, not shown, the position of each eccentric half pulley b is such
that its chain e hangs from its largest diameter or thereabouts as shown in the
drawing. When the backing off operation begins the counterfaller wire rises and
thus the eccentric half pulleys b being secured upon the counterfaller shaft a are
moved in the direction of the arrow so as to move away their largest diameters
from the chains and cause the chains to bear on a smaller diameter whereby.the
weight or pressure exerted by the salmon head levers upon the counterfaller
shaft a and the counterfaller wire and consequently the strain on the yarp remains
practically the same to whatever height the counterfaller wire rises.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
.
In a self acting mule or twiner, the use and application of eccentric half pulleys
secured upon the counterfaller shaft in combination with chains or their equivalents
each secured at one end to the smaller diameter of one of the eccentric half pulleys
and at the other to a weighting or salmon head lever substantially as and for the
purpose described. -
... Dated this 13th day of June 1895.
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicant.