IMPROVEMENTS IN TWISTING OR DOUBLING MACHINES
Year: 1880

page_text: LETTERS PATENT to John Edward Heppenstall, of Milnsbridge, near
Huddersfield, in the County of York, for an Invention of "IMPROVEMENTS
IN TWISTING OR DOUBLING MACHINES."
PROVISIONAL SPECIFICATION left by the said John Edward Hoppenstall
at the Office of the Commissioners of Patents on the 15th November 1880.
JOHN EDWARD HEPPENSTALL, of Milnsbridge, near Huddersfield, in the County.
of York. "IMPROVEMENTS IN TWISTING OR DOUBLING MACHINES."
My Invention relates to machinery for twisting and doubling wool and other
fibres. In this class of machinery when full bobbins are being changed for
empty ones the thread has been broken between the flyer and feeding rollers,
whereby much waste of thread took place, and the loose end of the thread has to
be attached to the empty bobbin by the attendant after cach change. My
Invention is intended to arrange this class of machinery so that when a full bobbin
is changed for an empty one it is not necessary to break the thread as at present
between the flyer and feed rollers. The thread is also connected to the empty
bobbins self-actingly, thereby waste is almost entirely avoided, and a saving of
tine in changing bobbins is effected. The improvements consist in arranging the
machine so that an inch or two of space is left between the underside of the bobbin
and the upper surface of the fixed steadying rail employed in supporting the
spindle, and the lifting rail carrying the ring and flyer is made capable of being
lowered beyond the bottom of the bobbin, so that when it is desired to remove
the full bobbins the ring and flyer are lowered beyond the bottom of the bobbins,
and the thread is wound a few times around the spindle; the full bobbins are
then removed and the thread broken between the bobbin and spindle; the thread
in the meantime is held by the spindle until an empty bobbin is placed thereon,
when the lifter rail raises the ring and flyer opposite the hand of the bobbin, and
the thread is wound thereon until the bobbin is full, and the operation of changing
is repeated.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Edward Heppenstall in the Great Seal Patent Office on
the 14th May 1881.
JOHN EDWARD HEPPENSTALL, of Milnsbridge, near Huddersfield, in the County
of York. "IMPROVEMENTS IN TWISTING OR DOUBLING MACHINES."
This Invention relates to machinery for twisting and doubling wool and other
fibres. In such machinery when the full bobbins are ready for being removed
from the spindles the yarn has to be broken between the flyer and feeding rollers,
and each thread thus broken has to be attached to the succeeding empty bobbin,
thereby causing a great loss of time and waste of material.
My improvements consist in mounting the bobbins upon collars fixed to the
spindles a few inches above the upper spindle rail, and in arranging the lifter rail
in such manner that it can be lowered beyond the bottom of the bobbin. When
it is desired to remove the full bobbins the lifter rail is lowered to its full extent
and the spindles caused to revolve a few times, whereby the thread is wrapped
round the spindles below the bobbins; the thread is then broken between the
spindle and bobbin and the bobbins removed. When empty bobbins are placed on
the spindles the lifter rail is raised to position and winding on at once commences,
so that there is no loss of time in joining the thread to the empty bobbin.
In order that my Invention may be fully understood I herein give reference to
the accompanying Sheet of Drawings illustrative thereof.
Fig. 1 is a front elevation of portions of a spiuning frame as heretofore con-
structed, and Fig. 2 represents similar portions adapted for the purpose of carrying
out my Invention.
A are the spindles; B, the bobbins, which instead of resting upon the rail C as
heretofore now rest upon collars or flanges D fixed to the spindles; E is the lifter
rail, which carries rings and flyers F, and this rail is capable of falling or being
lowered to the position shewn in the Drawing when the bobbins are filled and it is
necessary to remove them. When thus removed the portion of yarn a between
the bobbin and the spindle beneath is broken, and the end of the yarn is held by
the few turns previously made upon the spindle, so that when the lifter rail is
raised the yarn will commence to wind upon the empty bobbins.
I claim as my Invention the lowering of the lifter rail and flyers below the
bobbin, and winding the yarn upon the spindle previous to " doffing" the full
bobbins, substantially as herein shown and described.
In witness whereof, I, the said John Edward Heppenstall, have hereunto set
my hand and seal, this Thirteenth day of May, in the year of our Lord One
thousand eight hundred and eighty one.