Improvements in Machinery for Doubling and Twisting Yarns or Threads of Wool or other Fibrous Substances.
Year: 1895

page_text: Date of Application, 16th May, 1895.
Complete Specification Left, 17th Feb., 1896-Accepted, 21st Mar., 1896
PROVISIONAL SPECIFICATION.
Improvements in Machinery for Doubling and Twisting Yarns or
Threads of Wool or other Fibrous Substances.
We, NEWTON MURGATROYD BROWN of 41 Spring Garden's Road Heaton,
Bradford, Traveller, and JAMES ELLISON SMITH of Royd House, Keighley both
in the County of York, Machine Maker, do hereby declare the nature of this
invention to be as follows, that is to say :-
In connection with machinery used for doubling and twisting together yarns or
threads of fibrous substances, loss is often entailed by reason of the drawing or
delivery rollers continuing to draw and wind the threads or yarns after their
continuity to the bobbin has ceased, as by breakages therein at this part, and to
prevent such drawing and winding on the occurrences of these breakages, is the
object of our invention.
To attain this object we arrange the positively driven draw roller (which in this
case assumes a horizontal position) to support a superposed roller during the
process of its effective drawing operations on the yarns. The said yarus being
arranged to follow a course firstly beneath the draw roller then back over it and
again forward over the superposing roller, the weight of which latter keeps the
yarn in contact with the former with sufficient force to enable it to perform its
functions.
The supporting roller is carried by a counterbalanced lever, the counterbalancing
weight on which may be moved or regulated in accordance with the strength of the
yarns under operation as is well understood.
The actions of the mechanisin are as follows;-
During the continuity of the yarns the tension or pull of them through any
suitably formed intervening parts, presses the superposing roller against the draw
roller and so this latter is enabled to keep up the supply, however on said yarns
being broken or on such part or parts of them failing to be in continuity as will
detract from their strength or if the tension of these yarns is otherwise interfered
with in any manner to such an extent that the remaining part is too weak to force
the superposing roller as desired, then this latter is moved by the counterbalancing
weight and brought clear of the draw-roller, on which this latter can no longer
deliver or wind the yarns.
As will be seen in accordance with the above described arrangement the draw
roller has to revolve in a contrary direction to that which it usually follows, but
provided that this is thought undesirable by mounting another roller to bear upon
the above described superposing roller then this is avoided, since in this case the
yarns may be brought over the draw-roller, then turned back over the intermediate
roller and again brought forward over the other superposing roller.
In either of these arrangements bearings are employed and formed to allow the
operating parts to be as easy of access as possible for the operative.
Dated this 15th day of May 1895.

page_text: Improvements in Machinery for Doubling and Twisting Yarns or
Threads of Wool or other Fibrous Substances.
We, NEWTON MURGATROYD BROWN of 41 Spring Garden's Road Heaton,
Bradford, Traveller, and JAMES ELLISON SMITH of Royd House Keighley both
in the County of York, Machine Maker, 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, that is to say :-
In connection with machinery used for doubling and twisting together yarns or
threads of fibrous substances, loss is often entailed by reason of the drawing or
delivery rollers continuing to draw and wind the threads or yarns after their
continuity to the bobbin has ceased as by breakages therein at this part, and to
prevent such drawing and winding on the occurrence of these breakages, is the
object of our invention.
In the accompanying sheet of drawings;-
Figs. 1 and 2 are end and front elevations of a sufficient portion of a machine to
show the application of our invention.
Figs. 3 and 4 are end and top views illustrative of a modification hereinafter
explained.
Fig. 5 is end elevation showing another modification.
In all the drawings only such parts of the framework are shown as are necessary
to show the arrangement and attachment of our improved mechanism.
To attain the object of our invention we arrange the positively driven roller a to
support a superposed roller 6 during the process of its effective drawing operations
on the yarns c.
The said yarns c being arranged to follow a course beneath the
roller a around and back over it and again forward over the roller b (as shown by
Fig. 1) the weight of which latter roller keeps the yarn in contact with the
former roller a with sufficient force to enable it to perform its functions.
The roller b is carried by a lever d counterbalanced by the weight ƒ which may
be regulated or adjusted along the arm d¹ of said lever d to meet the requirements
of or be in accordance with the strength of the yarns under operation as is well
understood.
The actions of the mechanism are as follows;-
During the continuity of the yarns the tension or pull of them through any
suitably formed intervening parts as the other arm of the lever d, moves the
roller & forward so that it may rest upon the roller a and so this latter is enabled to
keep up the supply of the yarns c by drawing them from the bobbins 9, however on
Baid yarns c being broken, or on such part or parts of them failing to be in
continuity as will detract from their strength, or if the tension of these yarns c is
otherwise interfered with in any manner to such an extent that the remaining part
is too weak to move the roller b so that it may rest upon the roller a as described,
then the said roller b is moved by the weight fand brought clear of the roller a as
shown in broken lines Fig. 1, on which the said roller a is prevented from further
drawing and delivering the yarns c.
As will be seen in accordance with the above described arrangement the draw
roller a has to revolve in a contrary direction to that which it usually follows, but
provided that this is thought undesirable, by mounting another roller to bear
upon the roller b as shown by Fig. 5, then this is avoided, since in this case the
yarns c may be brought over the roller a then turned back over the roller b and
again brought forward over the roller h. Or again the guide piece k as shown by
Figs. 3 and 4 may be used instead of this roller h, in which case the yarns c will
firstly pass over the roller a back over the roller 6 and around the piece k to be
again brought between the rollers a and b.

page_text: The bearings for the rollers a and b are arranged to allow the operative to freely
take-up or repair the broken yarns as occasion may require.
According to the Figs. 1 and 2 of the drawing the machine to which our
invention is applied is shown to be what is known as a "flyer" frame, but we wish
it to be understood that our invention is equally applicable for use in connection
with "
ring," or cap" frames as with the one shown.
66
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 ;-
1. The combination in doubling and twisting machinery of rollers and parts for
supporting same arranged substantially as herein specified.
2. The combination in doubling and twisting machinery of positively driven
rollers and other rollers to operate in connection with them, these latter being
mounted on counterbalanced levers substantially as and for the purposes specified.
3. The combination in doubling and twisting machinery, of the parts herein
described the same being arranged substantially as set forth.
Dated thin 15th do- of huma
1906
NEWTON M. BROWN,
JAMES E. SMITH,
Per Samuel Hey,
Keighley, Agent.
NEWTON M. BROWN,
JAMES E. SMITH,
Per Samuel Hey,
Keighley, Agent.