IMPROVEMENTS IN SPINNING MACHINED
Year: 1880

page_text: LETTERS PATENT to Thomas Craven, of Keighley, in the County of York,
Spinner and Manufacturer, and Thomas Muter, of Bradford, in the said
County, Stuff Manufacturer, for an Invention of "IMPROVEMENTS IN SPINNING
MACHINED"
PROVISIONAL SPECIFICATION left by the said Thomas Craven and Thomas
Muter at the Office of the Commissioners of Patents on the 24th November
1880.
THOMAS CRAVEN, of Keighley, in the County of York, Spinner and Manufacturer,
and THOMAS MUTER, of Bradford, in the said County, Stuff Manufacturer.
"IMPROVEMENTS IN SPINNING MACHINERY."
The object of our Invention is to arrange ordinary spinning machines, such as
are used for spinning long stapled wool and other similar fibres used in the
manufacture of worsted stuffs, in such a manner that the same can be adapted for
spinning short stapled fibre, and produce a soft yarn.
We accomplish our object in the following manner:-
"
In fly spinning we pass the fibre direct from the front rollers to a twizzel "
mounted at the head of the flyer, centrally with the spindle, and revolving there-
with. The fibre whilst passing between the nip of the front rollers and the top of
the revolving "twizzel" is twisted into yarn, the twist running the whole distance
from the top of the said "twizzel" close to the nip of the front rollers, thus
twisting the short fibre directly it is delivered by the said rollers. The yarn thus
twisted travels round the twizzel to the flyer eye, and thence to the bobbin on the
spindle.
In applying our improvement to cap or ring spinning frames we mount a hollow
revolving wharl above each spindle and centrally with the same. To each of these
wharls we secure a "twizzel;" the fibre passes from the front rollers to the corre-
sponding “twizzel," and thereby twisted into yarn in the same manner as described
in fly spinning. From the top of the "twizzel" the yarn is conducted through the
centre of the hollow wharl, and built on to the revolving bobbin in the ordinary
manner.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Thomas Craven and Thomas Muter in the Great Seal Patent Office on
the 23rd May 1881.
THOMAS CRAVEN, of Keighley, in the County of York, Spinner and Manufacturer,
and THOMAS MUTER,. of Bradford, in the said County, Stuff Manufacturer.
"IMPROVEMENTS IN SPINNING MACHINERY."
The object of our Invention is to arrange ordinary spinning machines, such as
are used for spinning long stapled wool and other similar fibres used in the
manufacture of worsted stuffs, in such a manner that the same can be adapted for
spinning short stapled fibre, and produce a soft yarn.
The Invention consists in mounting a twizzel at the head of the flyer, centrally
with the revolving spindle, and when applied to ring or cap spinning frames we
mount above each spindle a hollow wharl, having a twizzel secured thereto similar
to those at the flyer heads; the fibre passes direct from the front rollers to the
twizzle without support, and in its travel between the same is twisted into yarn,
the twist running the whole distance from the top of the twizzle close to the nip of
the front rollers, twisting the short fibre directly it is delivered by the said
rollers.
In order that the Invention may be fully understood we have appended hereunto
a Sheet of Drawings marked with letters of reference, corresponding letters
indicating the same parts where they appear in the various Figures.
Figure 1 represents a sectional end elevation of one side of a spinning frame,
shewing how we carry our Invention into effect; Figure 2 is a front elevation of
same; Figure 3 is an enlarged view of a flyer fitted at the head with our improved
twizzel; Figure 4 is a view of an improved twizzel flyer covered by a tight fitting
cap; Figure 5 is a plan of flyer.
In carrying out our Invention we bring the 'ordinary back rollers A and B
comparatively close to the front rollers C and D, leaving sufficient space between
them for the carriers E; motion is given to the rollers and carriers by spur gearing
as in ordinary spinning. The flyer head is extended at F centrally with the
revolving spindle, which head is formed into a twizzel by having a hole bored at
the top longitudinally and centrally with the axis; another hole G is bored through
the side of F to meet the centre hole, by which a passage is formed from the centre
at the top, out at the side through which the yarn travels to the bobbin on the
spindle. In order to pass the yarn into the centre of twizzel we cut a groove H
through the side, extending from the top of hole G to top of twizzel; this allows
the yarn when broken to be easily pieced up.
The fibre as it is delivered by the front rollers C and D passes through the hole
in twizzel, as before described, round the small neck J to the flyer eye, and thence
to the bobbin on the spindle; in passing through the hole and round the neck, as
described, the fibre is sufficiently locked to turn with the spindle and flyer, giving
no twist to the yarn after it leaves the hole G, all the twist being put in the
in its travel between the front rollers and top of twizzel F, the twist running
the whole distance from the top of twizzel close to the nip of the rollers, twisting
the short fibre directly it is delivered by the said rollers.
yarn
i
Figure 6 is a section shewing our improvement as applied to ring spinning
machines; the same arrangement is also applicable to cap spinning machinery. We
use a twizzel head F similar to the one described, and attach the same to a hollow
wharl K mounted on tube L that is secured to projecting plate M. Motion to this
wharl and twizzel is obtained from an elevated cylinder N, shewn in Figure 1, and
which is driven by a strap in connection with bottom cylinder N'. The cord from

page_text: top cylinder N passes round small pullies O and O¹ against hollow wharl K, as
shewn by strong dotted line C', shewn in Figure 7, which is a plan of enlarged
sectional detail, Figure 8, through line a, b.
In order to facilitate the piecing up of broken yarn we cut a narrow grove P
through the wharl tube L and plate M; the yarn from the bobbin is passed through
this groove round the twizzel, in the manner as before described, and joined to the
fibre delivered by the front rollers, the revolving twizzel twisting the same into
yarn, in the manner as before described.
In the foregoing part of the Specification we have described the improved
twizzel as applicable for spinning short stapled fibre; we wish it to be understood.
that our improvement is also applicable for spinning long stapled fibre, the head of
the twizzel being the same for both classes of fibre.
What we claim as our Invention is,―
An improved twizzel for twisting fibre into yarn between the top of twizzel and
the nip of front rollers, constructed substantially in the manner as described and
illustrated by the accompanying Drawings.
In witness whereof, we, the said Thomas Craven and Thomas Muter, have
hereunto set our hands and seals this 20th day of May, in the year of our
Lord One thousand eight hundred and eighty one.
Witness to the signatures of the said
Thomas Craven and Thomas Muter,
ALFRED BOTTOMLEY.
THOMAS CRAVEN. (L.S.).
THOMAS MUTER. (L.S.)