IMPROVEMENTS IN SPINNING, DOUBLING, AND TWISTING YARNS, AND IN THE MEANS EMPLOYED THEREFOR
Year: 1877

page_text: LETTERS PATENT to Alexander Macdowall Fleming, Woisted Spinner and
Merchant, John Hey, Combing Overlooker, and Williain Earnshaw, Spinning
Overlooker, all of Greenock, m the County of Renfiew, North Britain, for the
Invention of "IMPROVEMENTS IN SPINNING, DOUBLING, AND TWISTING YARNS,
AND IN THE MEANS EMPLOYED THEREFOR
"
Scaled the 6th April 1877, and dated the 27th January 1877
PROVISIONAL SPECIFICATION left by the said Alexander Macdowall Fleming,
John Hey, and William Earnshaw at the Office of the Commissioners of
Patents on the 27th January 1877
ALEXANDER MACDOWALL FLEMING, Woisted Spinner and Merchant, JOHN
HEY, Combing Overlookeı, and WILLIAM EARNSHAW, Spinning Overlookeı, all
"IMPROVEMENTS IN
of Greenock, in the County of Renfiew, North Britain
SPINNING, DOUBLING, AND TWISTING YARNS, AND IN THE MEANS EMPLOYED
THEREFOR
"
This Invention, which relates to improvements in cap spinning, doubling, and
twisting yarns, has for its object to put an increased diag upon the yains whilst
being spun, doubled, or twisted, thereby enabling the yarns to be wound more
tightly or compactly on the bobbins, the result of which is that a greater length of
yarn is wound on the bobbins than under the existing practice
This object is carried into practice by means herein-after set forth, which
consists,
Firstly In attaching to the head of the cap on a stud, or to other suitable part
of the mechanism, a fly or arms with a hook, loop, or guide at then extremities,
through which the yarn passes on its way to the bobbins The rapid rotation
of the bobbin inside the cap in the action of spinning, doubling, or twisting
the yains, and winding them on to the bobbins has the effect of drawing the yarn
1ound about the exterior of the cap, and this produces a certain but insufficient
amount of diag, the additional diag being produced by the resistance which the
fly on ains offer to the rotation of the thread produced by the travel and spinning
action of the yaın.

page_text: The object of this Invention may also be effected by forming a groove round
about the exterior or interior of the cap, in which a moveable ring is situated,
which being carried round by the yarn produces the requisite resistance The
moveable ring may be dispensed with and a fixed one placed around the cap with
a groove projecting on either side of it, so that the yarn in passing into the groove
and under the ung receives the requisite drag
By means of the foregoing Invention the tubes of spinning frames are capable of
being diven at a higher speed than at present
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Alexandei Macdowall Fleming, John Hey, and William Earnshaw in
the Great Seal Patent Office on the 24th July 1877
ALEXANDER MACDOWALL FLEMING, Worsted Spinner and Merchant, JOHN HEY,
Combing Overlooker, and WILLIAM EARNSHAW, Spinning Overlooker, all of
Greenock, in the County of Renfrew, North Britain "IMPROVEMENTS IN SPINNING,
DOUBLING, AND TWISTING YARNS, AND IN THE MEANS EMPLOYED THEREFOR"
This Invention, which iclates to improvements in cap spinning, doubling, and
twisting yarns, has for its object to put an increased diag upon the yains whilst
being spun, doubled, or twisted, thereby enabling the yarns to be wound more
tightly or compactly on the bobbins, the result of which is that a greater length of
yain is wound on the bobbin than under the existing practice
And in order that our said Invention may be fully understood we now proceed
to particularly descube and ascertain the system, mode, or manner in or under
which the same 18 01 may be practically carried into effect, reference being had to
the accompanying Sheet of Diawings, and to the letters and figuies marked theicon,
and where similar letters of reference indicate corresponding parts in all the
Figures in which they occur, that is to say,-
Figure 1 is a side elevation of a spindle and its cap with our Invention applied
thereto The other Figures represent modifications and details heıcın-after
described
Refering to Figure 1, the spindle is marked A, the tube B, the bobbin C, and
the cap D To the top of the cap D is fixed a pin on pivot d, on which turns a fly
on yarn diag formed of a disc or plate a carrying aims b, the ends of which are
formed into eyes or loops c, through which the yarn passes on its way to the
bobbin. This fly or yarn drag is shewn separately in plan in Figure 2
Figure 3 represents a form of fly, in which the shape of the aims is slightly
modified.
In Figure 4 we have shewn a farther modification, in which the fly or yarn diag
is a spirally grooved plate a¹, through the groove in which the yain passes on its
way to the bobbin
The spiral in the plate a¹ (shewn in plan in Figure 5) is for doubling or twisting,
the spial may be in the reverse duection for spinning, as shewn in Figure 6. The
rapid rotation of the bobbin inside the cap in the ordinary action of spinning, doubling,
or twisting the yarns, and winding them on to the bobbins, has the effect of
diawing the yain round about the exterior of the cap, and this produces a certain
but insufficient amount of diag By providing the caps with flys or yarn drags
according to our Invention the thread is kept tight and steady, the result being
that a greater amount of yarn can be wound upon the bobbin than heretofore, and
the thread in spinning is spun, and in doubling and twisting is doubled and
twisted more smoothly
By the use of our Invention the tubes of spinning frames are capable of being
duiven at a slower speed than that at which they can be driven by the use of the
ordinary mechanism

page_text: Having now described and particularly ascertained the nature of our said In-
vention, and the system, mode, or manner in or under which the same may be
used or practically carried into effect, we would observe in conclusion that what
we consider to be novel and original and therefore claim as the Invention secured
to us by the herein-before in part recited Letters Patent is, the improvement in
cap spinning, doubling, and twisting yarns, consisting of the fly or yarn drag
herein-before described and illustrated in the accompanying Drawings, or any mere
modification thereof, for putting an additional drag upon the yain whilst being
spun, doubled, or twisted
In witness whereof, I, the said Alexander Macdowall Fleming, on behalf of
myself and the said John Hey and William Earnshaw, have hereunto set
my hand and seal, this Twenty-third day of July, One thousand eight
hundred and seventy-seven.