Improvement in Tape or Ribbon Looms.
Year: 1890

page_text: Date of Application, 22nd July. 1890
Complete Specification Left, 22nd Apr., 1891-Accepted, 23rd May, 1891
PROVISIONAL SPECIFICATION.
Improvement in Tape or Ribbon Looms.
I, WILLIAM STOKES of 42 Gardiner Street, New Brompton in the County of
Kent, Fitter, do hereby declare the nature of this invention to be as follows
-
My invention relates to looms for weaving tapes, ribbons and similar narrow
fabrics and consists in improved arrangements for holding and pressing the woven
narrow fabric against the taking-up or sand roller and delivering it into the box.
Ordinarily each tape after passing over the breast beam is taken round under the
taking-up roller and between it and a small roller mounted on a weighted lever and
resting on the top of the taking-up roller, then passed round and over the small
roller and thence delivered into the box. With this arrangement weights have to
be used for pressing the small roller against the tape and taking-up roller to
produce sufficient friction for overcoming the weight or tension on the warp, which
weights have to be varied for different tapes and ribbons. The tape also has to
rise from the large roller over the small one and as there is only the small weight
of the tape itself hanging over the roller into the box for effecting this, the tape
frequently falls back upon the taking-up roller or does not leave it and becomes
lapped round it, causing stoppages for unlapping and re-adjusting it. To avoid this
inconvenience the tape is sometimes taken over a quickly revolving emery roller,
but this by rubbing the tape injures it in many cases, can frequently not be
arranged in the loom, is in the weaver's way and often causes the tape to lap round
the emery roller, thus producing the stoppages it is intended to avoid. The object
of my invention is to overcome these inconveniences and to dispense with weights,
which I effect in the following manner:
For cach tape I fix upon a cross-rail placed below and to one side of the taking-
up roller a bracket with a pivot for a curved lever on which two rollers are mounted,
one underneath the centre of the taking-up roller or nearly so and the other at the
end of the lever at the side of the taking-up roller and clear of the same. The tape
coming up from the breast beam is taken under the end roller, over and round the
taking-up roller and between it and the lower roller and thence drops into the box.
The weight or tension on the warp pulls the end roller and lever upwards and
thereby presses the lower roller against the taking-up roller, thus pressing the tape
between them and causing it to be held with a pressure proportional to the tension
of the warp. This self-tightening arrangement does not require any weights or
adjustment of weights, though a balance weight may be placed on the lever on the
opposite side of its fulcrum for holding the lower roller against the taking-up roller
while the warp is changed or otherwise relieved from tension. The tape drops
directly from the underside of the taking-up roller into the box and its lapping on
the roller is prevented.
1000
W. T. EMMOTT,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvement in Tape or Ribbon Looms.
I, WILLIAM STOKES of 42 Gardiner Street, New Brompton in the County of
Kent, Fitter, 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 :-
My invention relates to looms for weaving tapes, ribbons and similar narrow

page_text: fabrics and consists in improved arrangements for holding and pressing the woven
narrow fabric against the taking-up or sand roller and delivering it into the
box.
Ordinarily each tape after passing over the breast beam is taken round under
the taking-up roller and between it and a small roller mounted on a weighted lever
and resting on the top of the taking-up roller, then passed round and over the small
roller and thence delivered into the box. With this arrangement weights have to
be used for pressing the small roller against the tape and taking-up roller to
produce sufficient friction for overcoming the weight or tension on the warp, which
weights have to be varied for different tapes and ribbons. The tape also has to
rise from the large roller over the small one and as there is only the small weight
of the tape itself hanging over the roller into the box for effecting this, the tape.
frequently falls back upon the taking-up roller or does not leave it and becomes
lapped round it, causing stoppages for unlapping and readjusting it. To avoid this
inconvenience the tape is sometimes taken over a quickly revolving emery roller,
but this by rubbing the tape injures it in many cases, can frequently not be arranged
in the loom, is in the weaver's way and often causes the tape to lap round the
emery roller, thus producing the stoppages it is intended to avoid. The object of
my invention is to overcome these inconveniences and to dispense with weights,
which I effect in the following manner:
same.
For each tape I fix upon a cross rail placed below and to one side of the taking-
up roller a bracket with a pivot for a curved lever on which two rollers are
mounted, one underneath the centre of the taking-up roller or nearly so and the
other at the end of the lever at the side of the taking-up roller and clear of the
The tape coming from the breast beam is taken under the end roller, over
and round the taking-up roller and between it and the lower roller and thence
drops into the box. The weight or tension on the warp pulls the end roller and
lever upwards and thereby presses the lower roller against the taking-up roller,
thus pressing the tape between them and causing it to be held with a pressure
proportional to the tension of the warp. This self-tightening arrangement does not
require any weights or adjustment of weights, though a balance weight may be
placed on the lever on the opposite side of its fulcrum for holding the lower roller
against the taking-up roller while the warp is changed or otherwise relieved from
tension. The tape drops directly from the underside of the taking-up roller into
the box and its lapping on the roller is prevented.
In order that my invention may be more readily ascertained, I have hereunto
appended a sheet of drawings on which
Figure 1 shows part of the front of a tape loom with the levers in section.
Figure 2 an end view of the lever and rollers, with beams in section.
Figure 3 a plan of the lever and rollers.
On the drawings, a represents the breast beam, with slits b for the woven ribbon
or tape e which is passed through them as usual. A cross rail d extending from
one side of the loom to the other is fixed to the loom sides below and behind the
sand roller e, as shown by Figure 2, and if necessary supported by intermediate
stands. To the rail d brackets are bolted and studs g fixed in said brackets by
nuts or otherwise, on which studs the curved levers are fulcrumned. The curved
levers are forked at one end and contain slots in their upper side for the pivots of
rollers i and on the underside of the ends for the pivots of rollers 1, or the rollers
may be supported in or by the levers in any other suitable manner allowing them to
rotate. The tape c being taken as shewn under the roller and over the sand
roller e, is pulled up by the tension or weight on the warp and thereby pulls the
lever upwards and presses the roller i against the sand-beam e, so that the tape is
gripped securely between the sand-beam e and rollers and drawn tight upon the
sand-beam e and thus taken up with certainty as the roller is rotated. The lever h
is preferably extended on the opposite side of the fulcrum and provided with a
balance weight me for holding the rollers up when the tension of the warp is taken
off or for handling the lever when starting new warps, letting back etc. The roller

page_text: is preferably barrelled so as to cause the tape to run on in the middle and held in
the slots by pins.
In cases where the sand-roller runs backwards instead of forwards as shewn, the
rail d is placed towards the back relatively to the sand roller and the levers h are
reversed, with the balance weights m towards the back and the roller towards the
front.
Having now particularly ascertained the nature of my said invention and in what
manner the same is to be performed, I declare that what I claim is:
Firstly, in tape or ribbon looms the arrangement of levers and rollers for pressing
the tapes or ribbons against the sand or taking-up, rollers substantially as herein-
before described and illustrated by the drawings.
Secondly, in tape or ribbon looms the method of producing the adhesion of the
tapes or ribbons to the sand or taking-up roller by passing each of them first under
a roller revolvably mounted at or near to the end of a lever; then over the sand or
taking-up roller and between the same and another roller revolvably mounted upon
the said lever between the said first roller and the fulcrum of the lever, substantially
as hereinbefore described and illustrated.
n
1 1001
W. T. EMMOTT,
Agent for the Applicant.