in Weaving Carpets and other Fabrics.
Year: 1888

page_text: in Weaving Carpets and other Fabrics.
We, GEORGE MATTHIAS WHITTALL, and ARTHUR WHITTALL of Stour Vale Mills
Kidderminster, in the County of Worcester, Carpet Manufacturers, do hereby declare
the nature of the said Invention and in what manner the same is to be performed
to be particularly described and ascertained in and by the following statement:-
This Invention relates to certain improvements in or applicable to bobbin frames
used in looms for weaving carpets and other fabrics (hereinafter intended to be
included where the word "carpet" occurs) the Invention having special reference to
improved means of supporting the bobbin and the yarn or other material (herein-
after intended to be included where the word "yarn" occurs) after leaving the
bobbins. in such a manner as to ensure that the bobbins and the yarn shall be
subjected to a practically continuous even amount of frictional resistance, effective
in causing the yarn to be kept at a practically uniform tension and to be drawn
evenly into the carpet resulting in the production of a carpet of uniform density with
a closely woven back and in the saving of a considerable amount of
yarn.
According to the present system the peripheries of the rims of the bobbin are
caused to rest upon a friction bar placed vertically below the axis of the bobbin, the
frictional resistance being entirely due to the gravity of the bobbin which varies in
accordance with the amount of yarn thereon, and the drawing forward of the yarn
tends to raise the bobbin and to lessen such resistance; and the yarn after leaving the
bobbin is passed over a single wire, so that the weight by which the tension of the
yarn is to some extent governed is not confined to any particular position, the result
of such arrangement being that the tension of the yarn is very irregular and the
weight is at liberty to shift its position and at times the frictional resistance offered
to the rotation of the bobbin is lessened to such an extent that the weight drags the

page_text: yarn and falls into contact with the yarn of the frame next below interfering with and
varying the tension of that, and the yarn is consequently drawn into the carpet with
an irregular tension and is at times puckered up thereinto, resulting in the production
of a carpet of varying density, with a loosely woven back, and in the waste of a great
amount of yarn.
The present Invention consists essentially in supporting the bobbin peripherally of
its rims upon parallel wires arranged transversely of the frame and extending from
side to side thereof in such a manner as that each bobbin is supported at four or more
parts in lieu of only two as at present, and in such a manner as that the ascending
and descending sides thereof shall simultaneously bear on and have frictional resistance
offered to them by such supports of the bobbin, and in such a manner as that the
drawing forward of the yarn shall tend to keep the frictional resistance offered by the
said supports uniform by causing the bobbin to be borne with a practically even
bearing against those of its supports which lie in the direction of the pull of the
yarn.
The Invention also consists in combining with such an arrangement of means for
supporting the bobbins, a series of parallel wires for each row of bobbins, for supporting
the yarn immediately after leaving the bobbins, such wires being arranged parallel to
the axes of the bobbins and at such a distance apart as will allow of the usual weight
suspended on the yarn working freely between the same and as will cause the weight
to maintain a practically constant position avoiding the disadvantages consequent
when only one such wire is used as hitherto, this improved arrangement being also
instrumental in causing the yarn being supplied from the bobbin to the carpet being
woven to receive a practically continuous even tension.
On the accompanying drawings-
Fig. 1. represents a perspective view of part of a bobbin frame adapted in accordance
with the present Invention.
Fig. 2. represents a side elevation thereof in section through the line, a,
And Fig. 3. represents a transverse elevation of Fig. 1. through the line, c, d.
It will be understood that the bobbin frame may be made of any desired size and
dimensions depending upon the size and number of bobbins required to the frame.
4, represents one end of the frame to which divisional pieces, 5, extending length-
ways of the frame are connected in any suitable manner.
7, represents the bobbins
which rotate on spindles, 8, working loosely in slots, 9, formed in the divisions, 5, such
slots being adapted with division pieces, 10, of tin or other suitable metal, all in a
usual manner.
11, represents the improved means by which the bobbins are supported, in the
manner clearly indicated in the drawings, and which in accordance with the present
Invention consist of parallel wires which will cause each bobbin to be supported at
four bearing parts operating in affording bearings for the rims of the bobbins to
revolve on and the required frictional resistance in the manner hereinbefore indicated.
Such wires may run continuously across the frame from side to side thereof passing
through the divisions, 5, and being bent down or otherwise suitably secured at their
ends.
12, represents the herein firstly referred to parallel wires which may run continuously
across the top part of the frame from side to side thereof and which are secured to each
division, 5, by staples or like means, 13, and being arranged as aforesaid parallel with
the axes of the bobbins are effective in supporting the yarn, after leaving the bobbin,
at two places between which the usual weight, 14, is suspended on the yarn, so that
the friction of the yarn thereover is rendered even and the position of the weight
relatively to its bobbin is ensured.
Having now particularly described and ascertained the nature of our said Inven-
tion and in what manner the same is to be performed, we declare that what we
claim is,
1. In combination with a bobbin frame, series of parallel wires extending through

page_text: its sides or divisions arranged for supporting the bobbins peripherally of their rims,
substantially as herein before described.
2. In combination with a bobbin frame having series of parallel wires extending
through its sides or divisions arranged for supporting the bobbins peripherally of their
rims as set forth, series of parallel wires, 12, arranged for supporting the yarn
immediately after leaving the bobbins and retaining the weight, 14, between them,
substantially as herein before described.
1 1
يمم
1
T
1000
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C.,
Agents for the Applicants.