Improvements in Doubling Machines.
Year: 1889

page_text: Date of Application, 17th Aug., 1889
Complete Specification Left, 16th May, 1890-Accepted, 21st June, 1890
PROVISIONAL SPECIFICATION.
Improvements in Doubling Machines.
I WALTER TWISS GLOVER of the firm of W. T. Glover and Company of the
Bridgewater Street Ironworks, Salford, in the County of Lancaster, Engineers and
ALBERT HARRIS HOWARD of Chelsea, in the County of Middlesex, Engineer, do
hereby declare the nature of this Invention to be as follows:-
Our Invention relates principally to the machines used in the manufacture of cords
each composed of two or more strands twisted together. In a machine at present
used for the purpose the yarns to form the strands are unwound from bobbins
mounted upon revolving spindles which are carried around a common centre so that
the yarns are twisted together into strands and the strands twisted together to form
a cord. Each spindle is made hollow to contain a weighted rod which is sustained
by the yarns but when not so sustained drops and arrests the movements of the
machine. The loads upon the said rods are mounted upon the spindles so that such
loads are revolved around the common centre which involves an expenditure of power
besides which there is some tendency to bend the spindles and to disturb the
steadiness of motion. We mount the said loads upon the central shaft and carry
the loads by means of arms which are connected with the rods in the hollow spindles.
In lieu of the ordinary flyer we employ a cage having three or more vertical bars
which answer the purpose of the ordinary flyer leg such bars being connected at their
upper ends by means of a ring. The yarns may pass out from the bobbin over any
one of the said bars and the tension may be increased by passing the yarns over two
or more of the bars before leading the yarns upward.
Dated this 16th day of August 1889
DUTTON & FULTON,
1, St. James Square, Manchester, Agents.
COMPLETE SPECIFICATION.
Improvements in Doubling Machines.
I WALTER TWISS GLOVER of the firm of W. T. Glover and Company, of the
Bridgewater Street_Ironworks, Salford, in the County of Lancaster, Engineers, and
ALBERT HARRIS HOWARD of Chelsea, in the County of Middlesex, Engineer,
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 and accompanying drawings:
--
Our Invention relates principally to the machines used in the manufacture of cords
each composed of two or more strands twisted together. In a machine at present
used for the purpose the yarns to form the strands are unwound from bobbins
mounted upon revolving spindles which are carried around a common centre so that
the yarns are twisted together into strands and the strands are twisted together to
form a cord. Each spindle is made hollow to contain a weighted rod which is
sustained by the yarns but when not so sustained drops and arrests the movements
of the machine. The loads upon the said rods are mounted upon the spindles so that
such loads are revolved around the common centre which involves an expenditure of
power besides which there is some tendency to bend the spindles and to disturb the
steadiness of motion. A further disadvantage arises from the fact that the centrifugal
force acting upon the loads causes them to press forcibly upon the spindles so
that the loads have to be made extra heavy to ensure their dropping on the breakage
of the yarn. To obviate these defects we mount the said loads upon the central shaft
DC37

page_text: and carry the loads by means of arms which are connected with the rods in the hollow
spindles.
The arrangement which we have adopted in the carrying into effect of our
Invention is illustrated by the accompanying drawings Fig. 1 being a side elevation
and Fig. 2 a sectional plan of a revolving spindle carrier. In the said Figs.
a a a are three spindles which are mounted to revolve in bearings in the spindle
carrier which also revolves as is usual the means for actuating these parts not
constituting any part of our Invention. Each spindle is hollow and is provided with
an inner drop rod as is usual. Each drop rod is attached to an arm el which is formed
upon a weight c which is bored to slide loosely upon the central shaft of the spindle
carrier. The outer end of each arm rests upon a cottar or pin which passes through
a slot d in the spindle and is fixed in the drop rod which is inside the spindle so that
each weight with its arm is sustained by one of the drop rods. The slot d is made
long enough to permit the drop rod to fall to the required extent when the yarn
breaks. It will be seen that by reason of the weight being sustained by a drop rod
such weight will add to the tendency of the drop rod to fall when not kept up by the
yarn. The said drop rod is sustained by the yarn so long as it remains unbroken or
so long as it is passing from the bobbin to the flyer as is usual but on the breakage
of the yarn which is coming off any one of the bobbins or on one of the bobbins
becoming empty the drop rod sustained by such yarn drops and strikes the stop
lever e as usual or otherwise acts upon the stop mechanism as preferred.
In Fig. 1 the middle weight of the three is represented as having dropped on the
breakage of the yarn.
We prefer to use cages f in place of the ordinary flyers these cages having three
or more vertical bars which answer the purpose of the ordinary flyer legs but we do
not claim these as novel.
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. In doubling or cord making machines having spindles carried around a common
centre and provided with loaded drop rods for acting on the stop lever or apparatus
the loading of such drop rods by means of weights which are loosely mounted to slide
upon the central shaft and are connected by means of arms with the said drop rods
substantially as set forth and indicated.
-
2. The weights or loads c loosely mounted to slide upon the shaft ¹ around which
the spindles a are carried and the arms c' connecting such weights with the ordinary
drop rods inside such spindles substantially as and for the purpose set forth and
indicated.
Dated this 15th day of May 1800
DUTTON & FULTON,
1, St. James Square, Manchester, Agents.