Improvements in Machinery for Spinning and Twisting Filamentous Materials.
Year: 1886

page_text: Date of Application, 5th June, 1886.
Complete Left, 8th Feb., 1887.
Complete Accepted, 8th Mar., 1887.
PROVISIONAL SPECIFICATION.
[Communicated from abroad by ERNEST PRÉVOST, of Seclin, near Lille, France,
Manager of Spinning Mills.]
Improvements in Machinery for Spinning and Twisting Filamentous
Materials.
I JOHN CLAYTON MEWBURN, of 169 Fleet Street, in the City of London, Fellow
of the Institute of Patent Agents do hereby declare the nature of this invention to be
as follows:
Hitherto in machinery, such as throstles with flyers, for spinning or twisting
filamentous materials, and more particularly for spinning flax, the tension of the
thread or yarn has been regulated by a brake acting against the wooden bobbin, and
these brakes have had to be regulated according to the quantity of material wound on
the bobbin. Many arrangements of brakes variable by hand or automatically
regulated have been used but none of them have been quite satisfactory; the best has
been the old arrangement of cords embracing an are of the bobbin, the are being
more or less great according to the position of the weights in a notched bar.
Now the present invention effects the result in a novel way. 1 interpose a fixed
metal tube between the spindle and the bobbin; this tube is not quite so long as the
bobbin. The spindle does not touch the bobbin and consequently exerts no friction
thereon. The bobbin is free and is moved only by the thread or yarn itself. The
tension of the thread thus depends solely upon the weight of the bobbin, and the
regularity of the tension of the thread is ensured whatever be the quantity wound on
the bobbin. As the bobbin fills it increases in weight and the tension of the thread
proportionately increases, and it is precisely in proportion to the increase of the
diameter that the tension should be increased.
The tube can be cast with the collar for the spindle and can be fixed by screws or
otherwise.
As the tension of the thread depends upon the weight of the bobbin it is necessary
for the weight to be in relation with the "number" of the thread; with this object
the bobbin can be loaded with a variable weight, or friction can be given to it by
a cord which is in contact with the peripheries of a series of the bobbins; a spring
or weight at the end of this cord gives once for all the desired tension for each
"number."

page_text: I JOHN CLAYTON MEWBURN, of 169 Fleet Street, in the City of London, Fellow
of the Institute of Patent Agents 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 :-
Hitherto in machinery, such as throstles with flyers, for spinning or twisting
filamentous materials and more particularly for spinning flax the tension of the thread
or yarn has been regulated by a brake acting against the wooden hobbin, and these
brakes have had to be regulated according to the quantity of material wound on the
bobbin. Many arrangements of brakes variable by hand or automatically regu-
lated have been used but none of them have been quite satisfactory; the best has
been the old arrangement of cords embracing an are of the bobbin, the are being
more or less great according to the position of the weights in a notched bar.
Now the present invention effects the result in a novel way. A fixed metal tube is
interposed between the spindle and the bobbin; this tube is not quite so long as the
bobbin. The spindle does not touch the bobbin and consequently exerts no friction
thereon. The bobbin is free and is moved only by the thread or yarn itself. The
tension of the thread thus depends solely upon the weight of the bobbin, and the
regularity of the tension is ensured whatever be the quantity wound on the bobbin.
As the bobbin fills it increases in weight and the tension of the thread proportionately
increases, and it is precisely in proportion to the increase of the diameter that the
tension should be increased.
Figure 1 of the annexed drawings represents the metal tube and Figure 2 shows it
in position between the spindle and the bobbin. A is the spindle, B the metal tube
and C the bobbin.
The tube B can be cast with the collar for the spindle and can be fixed by screws or
otherwise.
As the tension of the thread depends upon the weight of the bobbin it is necessary
for the weight to be in relation with the "number" of the thread; with this object

page_text: the bobbin can be loaded with a variable weight, or friction can be given to it by
a cord which is in contact with the peripheries of a series of the bobbins as seen in
plan in Figure 3 in which D represents the friction cord and E tension rollers; a
spring or weight at the end of this cord gives once for all the desired tension
for each number."
"
Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed, as communicated to me, I declare
that what I claim, in respect of machinery for spinning and twisting filamentous
materials, is:
The employment of fixed tubes between the spindles and the bobbins substantially
as and for the purpose herein set forth.