Improvements in Looms for Weaving Tufted Fabrics.
Year: 1898

page_text: Date of Application, 23rd Aug., 1898-Accepted, 24th Sept., 1898
COMPLETE SPECIFICATION (AMENDED).
[Communicated from abroad by THE ALEXANDER SMITH & SONS CARPET COM-
PANY, a Corporation organized under the laws of the State of New York,
and having its office in Yonkers, in said State of New York, United States
of America.]
Improvements in Looms for Weaving Tufted Fabrics.
I, HENRY EDWARD NEWTON, of the Office for Patents, 6, Bream's Buildings,
Chancery Lane, in the County of London, Patent Agent, 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:-
Much difficulty has heretofore been experienced in the weaving, by power
looms, of tufted fabrics of considerable width, as in weaving tufted carpets,
of a width much greater than that of a breadth of such carpet as now usually
woven, on account of the bending of the tuft yarn spools and spool frames,
when the ends of yarn for forming the tufts are being inserted in the body
of the fabric.
The object of this invention is to overcome this difficulty, and to provide for
the weaving of tufted fabrics, and especially tufted carpets, of a greater width
than such fabrics are now usually woven; and the invention consists in the
features of construction and the arrangements and combinations of parts
hereinafter pointed out in the claims.
While the invention, broadly considered, is applicable generally in looms
employing tuft yarn spools, whether the spools be removed from the carrying
chains or other spool-carrying devices, in inserting the tufts, or the yarn drawn
off the spools without thus removing them, the invention has been designed
in connection with a loom employing transferring arms, by which the spools
are carried to and returned from the fabric in inserting the tufts, as shown,
for instance, in British Patent No. 22455 of 1894.
In the accompanying drawings illustrating the preferred construction, embody-
ing the invention as applied in connection with such transferring arms:-
Fig. 1 is a view in elevation of a spool frame and spool, and so much of the
transferring arms of a loom for weaving tufted fabric as is necessary to show
the invention.
Fig. 2 is a section of the spool and spool frame, on line 2 of Fig. 1.
Fig. 3 is a section of the spool and spool frame taken on line 3 of Fig. 2,
and broken off on either side of the central support.
Fig. 4 is a view in elevation, and partly broken away, of a spool formed of
three sections and a frame, and having intermediate supports therefor.
Fig. 5 is a central longitudinal section through the meeting ends of two of
the spools, showing a modification in the arrangement of the bearing pin.
3 for convenience in placing the spools in the frames.

page_text: Referring to the drawings, and first to Figs. 1 to 3, the spool frame is
formed of a bar 10, which carries the usual tins 11, and is provided, at each
end, with supports or bearings 12, for the tuft yarn spool A, and the usual
catch spring 13 and arm 14, for securing the frame to the carrier chains, as
shown in said British Patent No. 22,455 of 1894. The yarn spool A is formed
of two sections a a, having their outer ends formed in the usual manner with
a flange and pin, and journelled in the supports 12, and having their inner
ends formed and supported as follows:-Each of said ends is provided with
a flange 2, and from the flange on one of the sections a, extends a central
bearing pin 3, which enters a socket 4 in the end of the other section. Around
the socket 4 is a collar 5, which enters an opening 6 in a support 15, which
extends from the bar 10 between the flanges 2. The end of one of the sections a
thus has its bearing in the support 15, and the end of the other section a has
its bearing in the first section. A secure bearing may thus be provided with
the use of a support 15 formed of a comparatively thin sheet; and this is of
great importance, since it is desirable that the end zones of yarn in the 'two
sections of the spool be as close together as possible.
The pin 3, socket 4, and collar 5, are so proportioned as not to hinder the
flanges being pressed against the two faces of the support 15, so that if
pressure be applied to the outer ends of the two sections of the spool, so as to
hold the ends from moving apart, the end flanges 2 will be held pressed against
the supporting plate 15, and it will be impossible for the spool to bend where
the two sections join, except under a tension great enough to overcome the
pressure on the outer ends of the sections, since, there can be no bending at
this point, unless either the flanges move together on one side, which they are
prevented from doing by the support, or the two sections move bodily from
each other, which they are prevented from doing by the pressure on the outer
ends of the sections. So, also, if the spool be bent slightly at this joining
point of its sections, the application of pressure to its outer ends will cause
the spool to straighten. When the sections are pressed together, also, the
support 15 will be gripped between the end flanges 2, thus securing a rigid
connection between the spool and the bar 10 at this point.
The transferring arms 20, only partially shown, by which the spools and
spool frames are carried between the carrying chains, and the point where
the ends of yarn are inserted in the fabric to form the tufts, may be of any
suitable construction, as, for example, that shown in the patent above referred
to, and carry the usual clutches 21 having gripping arms 22. The clutches 21
are also provided with members under spring tension, preferably spring-pressed
forked arms 23, similar to the spring-pressed arms shown in said patent, which,
when the transferring arms are moved toward each other to grip the spool
frame, bear on the ends of the spool, so that the sections of the spool will be
pressed toward each other longitudinally of the frame, so as to press the
flanges 2 against the supporting plate 15, whereby the spool will be straightened
or held from bending, and the support 15 gripped- between the flanges.
When the spool frame is carried by the transferring arms... therefore. the
sections of the spool form, in effect, a single spool, connected at its ends to
the bar 10, and having at an intermediate point; by the supporting plate 15,
a connection to the bar 10, which is rigid as against any strain less than a
strain strong enough to overcome the pressure on the ends of the. spool.. By
making the pressure of the arms 22 sufficient there is thus provided, in effect,
a frame having two longitudinal bars having a rigid connection at a point
intermediate of their ends. The invention. thus provides a construction by
which the tuft yarn spool and spool frame, will withstand the bending strains
to which they are subjected, and remain practically straight at the time when
it is necessary that they should remain so, and this without any objectionable
increase in the size or weight, or change of the form of the parts. The same
result is secured by pressure upon the ends of the spool in the supports in thase

page_text: looms in which the spools are not removed from the chains in inserting the
tufts.
The flanges 2 are preferably for the purpose of securing greater rigidity,
of metal, and are preferably formed and secured to the ends of the spools as
shewn.
Figure 4 shows a spool formed of three sections, and a frame therefor,
constructed according to the invention as above described, the construction and
connection of the spool being the same as in Figures 1 to 3, except that one
end of the middle section is preferably provided, as shewn in Figure 5, with a
spring-pressed bearing pin 3ª for convenience in placing the section in the
spool, and similar to the spring-pressed pins commonly employed in tuft yarn
spools for this purpose.
It will be understood that the invention, as claimed, is not limited to the
exact construction shown, but includes modifications thereof within the claims
which will secure the results described.
While it is preferable to provide the meeting ends of the sections of the
spools with bearing flanges, as shewn, and while such flanges will generally
he found necessary to secure satisfactory results, yet, when the spool is of
large diameter, it may be found sufficient to depend merely on a bearing face
formed by, or of the size of, the end of the spool. While it is preferable to
form the flanges 2 as continuous circular flanges, and the support 15 of a
corresponding form, it will be understood that the flanges may be only partial
or broken flanges, or the support may be of other form than the preferred
circular form shewn.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed (as communicated
to me from abroad), I wish it to be understood that I am aware that it has
been proposed to use in a loom for weaving tufted fabrics a tube frame
having bearings for a plurality of tuft yarn carrying spools and tuft yarn
carrying spools arranged in said bearings and I declare that what I claim is:-
1. A tuft yarn spool frame having end spool supports, and one or more
intermediate spool supports, in which supports are journalled spool sections,
arranged with their opposed ends bearing against and gripping the inter-
mediate supports, so as to prevent the spool bending at the points of juncture
of the sections.
or more
2. A tuft yarn spool frame having end spool supports and one
intermediate spool supports, in which supports are journalled spool sections
having, at their opposed ends, flanges which form extended faces bearing
against and gripping the intermediate supports, so as to prevent the spool
bending at the points of juncture of the sections.
3. A tuft yarn spool frame having a frame bar on one side of the spool
only, and having end spool supports and one or more intermediate spool supports
mounted on the frame bar, and in which are journalled spool sections arranged
with their opposed ends bearing against and gripping the intermediate supports,
to stiffen the frame bar and prevent bending at the points of juncture of the
spool sections.
4. The combination of a tuft yarn spool frame having end spool supports
and one or more intermediate spool supports, a spool formed in sections
journalled in said supports, and having at their meeting ends opposed bearing
faces engaging opposite sides of the intermediate supports, to prevent the spool
bending at the points of juncture of the sections, and means for pressing the
sections of the spool together longitudinally of the frame, to cause the bearing
faces to bear against and grip the intermediate supports, substantially as
described.
5. The combination of a tuft yarn spool frame having end spool supports
and one or more intermediate spool supports, and a spool formed in sections

page_text: journalled in said supports, and having their meeting ends formed to bear
against opposite sides of the intermediate supports, and each pair of meeting
ends being provided, one with a central socket and a collar around said socket,
forming a bearing for the spool section in the support, and the other with a
pin entering said socket, substantially as described.
6. A tuft yarn spool frame and sectional spool, substantially as shewn and
described.