IMPROVEMENTS IN TWISTING AND DOUBLING
Year: 1878

page_text: LETTERS PATENT to Ira Ickringill, James Ickringill, Thomas Ickringill, and
Thomas Slingsby, of Keighley, in the County of York, Spinners, for the In-
vention of IMPROVEMENTS IN TWISTING AND DOUBLING."
16
Sealed the 2nd August 1878, and dated the 6th February 1878.
PROVISIONAL SPECIFICATION left by the said Ira Ickringill, James
Ickringill, Thomas Ickringill, and Thomas Slingsby at the Office of the Com-
missioners of Patents on the 6th February 1878.
IRA ICKRINGILL, JAMES ICKRINGILL, THOMAS ICKRINGILL, and THOMAS SLINGSBY,
all of Keighley, in the County of York, Spinners. "IMPROVEMENTS IN TWISTING
AND DOUBLING."
The object of this Invention is to lay the fibres of yarn, and to accomplish the
same during the operation of twisting and doubling.
We accomplish the above object in the following manner:- -From each separate
bobbin we pass the yarn or single thread through separate guides, in order to
prevent the union of the two or more threads whilst passing round or through the
ordinary roller or rollers, whether vertical or horizontal, in passing round or through
the said rollers, the single threads are rolled upon the surface of the rollers whilst
converging to the point of union between the roller or rollers and the ordinary,
spindle of the frame; this rolling upon the surfaces has the effect of twisting the
loose fibres round the single threads, and are finally secured in such position when
the single threads or strands are twisted together, thereby producing a smoother,
stronger, and consequently more valuable yarn.
:

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Ira Ickringill, James Ickringill, Thomas Ickringill, and Thomas
Slingsby in the Great Seal Patent Office on the 3rd August 1878.
IRA ICKRINGILL, JAMES ICKRINGILL, THOMAS ICKRINGILL, and THOMAS SLINGSBY,
all of Keighley, in the County of York, Spinners. "IMPROVEMENTS IN TWISTING
AND DOUBLING."
The object of this Invention is to lay the fibres of yarn, and to accomplish the
same during the operation of twisting and doubling.
We accomplish the above object in the following manner:- -From each separate
bobbin we pass the yarn or single thread through separate guides, in order to
prevent the union of the two or more threads whilst passing round or through the
ordinary roller or rollers, whether vertical or horizontal, in passing round or through
the said rollers, the single threads are rolled- upon the surface of the rollers, whilst
converging to the point of union between the roller or rollers and the ordinary
spindle of the frame; this rolling upon the surface of the rollers has the effect of
twisting the loose fibres round the single threads of yarn, which are finally secured
in such position, when the single threads or strands are twisted together, thereby
producing a smoother, stronger, and consequently more valuable yarn.
In order that our improvements may be more clearly understood, we will proceed
to describe the same by reference to the accompanying Drawings, which represent
such parts of twisting and doubling frames as are required to ellucidate our
Invention.
Figure 1 represents a sectional end elevation of one side of a twisting or doubling
frame. Figure 2 is a front view of the same.
Figure 3 is a detail of the guide for keeping the single threads of yarn separate.
Figure 4 is a side view of the same.
Figure 5 is a sectional end elevation of one side of a twisting or doubling frame,
having horizontal rollers. Figure 6 is a front view of the same, and Figure 7 is a
detail of the guide or twizzle we employ for horizontal rollers.
In all the Figures similar letters represent similar parts.
•
The bobbins A containing the single threads of yarn are placed on the ordinary
pegs or pins, and each thread of yarn from these bobbins is conducted through
separate recesses or notches B formed. in the guide plate C, a detail of which is
shewn in Figure 3; from the guides plates C, the single threads of yarn D pass
round the ordinary vertical roller E in a spiral direction, and by the threads
gradually converging towards each other in the travel round the roller E, to the
bobbin on the spindle F, the threads of yarn are rolled upon the surface of the said
roller E, and the loose fibres of the single threads are thereby twisted round the
body of the thread, and when the separate threads are united and twisted together
the loose fibres are firmly secured and held in position.
Figure 5 represents an arrangement by which we accomplish our object with
horizontal rollers; the bobbins are placed on pegs or pins as before described, and
the separate threads of yarn D are conducted through ordinary twizzles K (a detail
of which is shewn in Figure 7) to the under side of bottom roller G; the threads
of yarn are then passed in the direction of the arrows, round the front side of the
bottom roller G between the rollers, and over the top of the top roller H to the
bobbin on the spindle F; the single threads of yarn in passing round the horizontal
rollers as. described, converge towards each other, and are rolled on the surface of
the rollers; thus the loose fibres are twisted rounded the body of the thread, and held
in position as before described.
Having thus described our improvements, and the meaus we employ for carrying
the same into effect, we would have it understood that we do not confine ourselves
to the precise details of the guides shewn and described, as the same may be varied
without departing from the peculiar character of our Invention, but that what we

page_text: believe to be new and original, and all we claim as the Invention secured to us by
the herein-before in part recited Letters Patent is,―
The delivery of the separate threads of yarn on to the vertical or horizontal
rollers of twisting or doubling frames, such a distance apart from each other, and in
such a manner, that the separate threads when passing round a through the said
roller or rollers, will roll upon the surface of the same, whilst the threads are con-
verging to the point of union, thereby rolling or twisting the loose fibres round the
body of the single threads, which fibres are finally secured when the separate
threads are united and twisted together, substantially in the manner herein-before
described, and illustrated by the accompanying Drawings.
In witness whereof, I, the said Thomas Slingsby, for and on behalf of myself
and the said Ira Ickringill, James Ickringill, and Thomas Ickringill, have
hereunto set my hand and seal, this Second day of August, in the year of
our Lord One thousand eight hundred and seventy-eight.
Signed and sealed
in the presence of
JOHN GILL,
Clerk to John Waugh,
Engineer and Patent Agent,
Bradford,
Yorks.
THOMAS SLINGSBY. (L.S.) }