Year: 1887

page_text: Date of Application, 25th Oct., 1887
Complete Left, 23rd Mar., 1888
Complete Accepted, 27th Apr., 1888
I, THOMAS ALEXANDER BOYD, of Shettleston Iron Works, Shettleston, in the
County of Lanark, North Britain, Engineer, do hereby declare the nature of this
Invention to be as follows, that is to say :-
My said Invention has for its object to produce in an improved and simplified
manner variegated or fancy yarns, that is yarns in which the spinning of the roving
or the twisting together of the component strands instead of being uniform throughout
as with ordinary yarus is varied at intervals so that the yarn nay vary in thickness or
in degree of twist, or so that when two or more strands are twisted together one or
each of the strands may appear more on the surface of the yarn at some parts than
at others. The strands of such doubled yarns are very frequently different from each
other in color or otherwise, but the same means may be employed with similar strands
to give varying thicknesses to the yarns at intervals.
In carrying out my Invention any suitable machine constructed for spinning or for
the combined operation of doubling and twisting may be employed. The desired
effect is obtained by making one or both feed rollers of each pair with one or more
depressions in the surface. When there are two or more strands they are guided so
as to pass in contact with different parts of the feed rollers, and the depressions are
made in the parts of the roller surfaces appertaining to the respective strands. Thus
for example, if two differently colored strands are being twisted together and are to be
acted on by the new device at alternate intervals, the depressions for each strand will
be made beside the undepressed parts for the other strand. Then when one strand is
being fed forward by an undepressed part of a roller, the other strand will be in a
depressed part and will not be fed forward; in consequence of which the fed strand
will be twisted round the unfed strand and will show more on the surface. As the
twisting and winding proceeds the continued rotation of the feed rollers will
cause the feeding and non-feeding actions to be interchanged as regards the strands,

page_text: and the strand which showed most on the surface will then become what may
be termed the inner strand and the previously inner strand will become the
outer one.
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The depressions on the feed roller or rollers may be variously arranged and may
made to produce a great variety of effects. The rollers may consist each of a single
piece or be built up each of two or more pieces; or there may be distinct rollers for
the several strands of a set which are to be twisted together.
Deted this Twenty-fourth day of October 1887

page_text: Improvements in Producing Variegated or Fancy Yarns.
I, THOMAS ALEXANDER BOYD, of Shettleston Iron Works, Shettleston, in the
County of Lanark, North Britain, Engineer, 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, that is to say :-
My said Invention has for its object to produce in an improved and simplified
manner variegated, or fancy yarns, that is-yarns in which the spinning of the roving
or the twisting together of the compound strands instead of being uniform throughout
as with ordinary yarns, is varied at intervals so that the yarn may vary in thickness
or in degree of twist, or so that when two or more strands aro twisted together one or
each of the strands may appear more on the surface of the yarn at some parts than at
others. The strands of such doubled yarns are very frequently different from each
other in color or otherwise, but the same means may be employed with similar strands
to give varying thicknesses to the yarns at intervals.
In carrying out my Invention any suitable machine constructed for spinning or for
the combined operation of doubling and twisting may be employed. The desired
effect is obtained by making one or both feed rollers of each pair with one or more
depressions in the surface. When there are two or more strands they are guided so
as to pass in contact with different parts of the feed rollers, and the depressions are
made in the parts of the roller surfaces appertaining to the respective strands. Thus,
for example, if two differently colored strands are being twisted together and are to
be acted on by the new device at alternate intervals, the depressions for each strand
Then when one
will be made beside the undepressed parts for the other strand.
strand is being fed forward by an undepressed part, the other strand will be in a
depressed part and will not be fed forward; in consequence of which the fed strand
will be twisted round the unfed strand and will show more on the surface. As the
twisting and winding proceeds, the continued rotation of the feed rollers will cause
the feeding and non-feeding actions to be interchanged as regards the strands, and the
strand which showed most on the surface will then become what may be termed the
inner strand, and the previously inner strand will become the outer one.
The depressions on the feed roller or rollers may be variously arranged and may be
made to produce a great variety of effects. The rollers may consist each of a single
piece or be built up each of two or more pieces; or there may be distinct rollers for
the several strands of a set which are being twisted together.
On the accompanying sheet of explanatory drawings examples of rollers to be used
in carrying out my Invention are delineated.
Figure, 1, is a side elevation and figure, 2, is an axial section of a roller for acting
on three strands and which is built up of three separate acting parts. These parts
which are shown separate in figures, 3, 4, and 5, are strung upon a centre, D, formed
with a flange, E, at one end and they are fixed by a disk or flat ring, F, screwed on
the other end of the centre, D. Each part, A, B, C, is shown as made with two

page_text: depressions, G, and the parts are fixed on the centre, D, with their several depressions
in different positions.
Figures, 6, and 7, are a side elevation and an axial section of a roller made in one
piece with depressions, G, for two strands, the depressions for one of them being
beside undepressed parts for the other strand.
Figure, 8, is a plan, and figure, 9, is a transverse vertical section showing a small
portion of a doubling and twisting machine, as provided with one of my rollers
having surface depressions for producing variegated or fancy yarns according to my
Invention. The roller, H, which is held in a forked bracket, J, and which with its
bracket shown in front elevation in figure, 10, rests upon a driven roller, K, and the
yarn strands, L, pass between the two rollers. Just before entering between the two
rollers the yarn strands, L, pass through separate guides, M; and after leaving the
rollers they pass through other separate guides, N, to the twisting mecbanism. A
single central guide, P, is provided to be used when strands are to be twisted without
differential action, such strands then passing in contact with the middle undepressed
part of the roller, H. The guides, M, N, behind and before the rollers insure the
passing of the yarn strands in their proper respective courses between the rollers, H,
and K. The roller, H, shown in figures, 8, 9, and 10, is of the kind shown on a larger
scale in figures, 6, and 7.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is:-
Producing variegated or fancy yarns by employing feed rollers having suitable
surface depressions in the apparatus used in spinning or twisting the yarns substantially
as hereinbefore described.
Dated this Twenty second day of March 1000
EDMUND HUNT,
Applicant's Agent.