AN IMPROVED MEANS AND METHOD FOR PRODUCING LOOPED FABRIC WHILST WEAVING
Year: 1886

page_text: We, ALFRED LISTER and WOODHOUSE CARTER, of Low Moor, Yorkshire,
Manufacturers do hereby declare the nature of our invention for "AN IMPROVED
MEANS AND METHOD FOR PRODUCING LOOPED FABRIC WHILST WEAVING," to be as
follows:
The object of our invention is to produce a looped fabric whilst weaving by
means of new and improved mechanism.
For the purpose of carrying out our invention we employ two rocking bars, one
arranged at the back of the loom and one arranged at the front of the loom. To
produce the looped fabric we employ two warps, one for the body of the fabric and
one for the loops which may or may not be of a superior quality.-These two warps
are placed at the back of the loom and pass over the rocking bar placed there,
thence forward through the healds, and reed and over the rocking bar at the
front of the loom, and finally are wound onto the cloth beam in the ordinary
manner.
:
:
3
The rocking bars are connected together by a rod so that when operated in
either direction by cams, tappita, or other suitable mechanism the two rocking bars
move together. If therefore they are moved from the breast beam the warps will
be carried forward to the extent of the motion of the rocking bars in doing which
the last shoot of weft is taken beyond the reach of the reed at its next beat up.
We then throw two or more shoots of weft across the warp and afterwards causė
the rocking bars to rock in the opposite direction taking the warp back again so
that when the reed beats up again the few shoots of weft last put in will be beaten
up to the weft previously beaten up, in doing which a portion of the warp employed
for the purpose (and which is not held tight like the warp used in forming the
ground of the fabric) is pulled or drawn forward and from its position must
necessarily rise above the surface of the fabric and form loops thereby. The
operation is again and again repeated, continuously so, by which means we are
enabled to produce a looped fabric by positive and expeditious means without
much alteration of the loom.
.
:
Although we have stated that the loops are formed on the face of the fabric, they
may be placed at the back, or on both sides at the same time.
;

page_text: An Improved Means and Method for Producing Looped Fabric
whilst Weaving. -
We, ALFRED LISTER and WOODHOUSE CARTER of Low Moor, Yorkshire
Manufacturers do hereby declare the nature of our invention for "AN IMPROVED
MEANS AND METHOD FOR PRODUCING LOOPED FABRIC WHILST WEAVING
" and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
The object of our invention is to produce a looped fabric whilst weaving by
means of new and improved mechanism.
า
f.
For the purpose of carrying out our invention we employ two rocking bars, one
arranged at the back of the loom, and one arranged at the front of the loom.
To produce the looped fabric we employ two warps, one for the body of the
fabric and one for the loops which may or may not be of a superior quality. These
two warps are placed at the back of the loom, and pass over the rocking bar placed
there, thence forward through the healds and reed and over the rocking bar at the
front of the loom, and finally wound onto the cloth beam in the ordinary manner.
The rocking bars are connected together by a rod so that when operated in
either direction by cams, tappits, or other suitable mechanism, the two rocking bars
move together.
Such being the nature and object of our Invention, we will now proceed to
describe the same more fully, and for that purpose make reference, to the accom-
panying Sheet of Drawings, wherein Fig. 1 is end elevation of so much of a loom
as is necessary to shew our improvements, Fig. 2 is cross section of same, and Fig. 3
is back view shewing some of the parts. A is the loom framing, B the healds, O the
ordinary warp beam, and D the taking up beam or roller.
:
E and F are the two rocking bars, supported by studs working in small brackets
attached to the ordinary back rail G and breast rail H. To the rocking bars at each
Bide of the loom both back and front are attached slotted arms I, and J connected
together by rods K in such manner that both rocking bars move together.
Oscillatory motion is given to the bars by means of an inclined segment lever L
working upon a stud projecting from the loom frame. This lever is connected by
vertical rod M to the lever N having a bowl O working in the groove of the cam P,
the rotation of which gives an upward and downward motion to the parts just
described. A bracket R projecting from the slotted arm I carries a pin or stud a,
against which pin the segmented end of the lever L bears so that as the lever is
oscillated backward and forward it gives a like motion to the rocking bars and this
is repeated at each revolution of the cam.P.
M
When the rocking bars are moved from the breast beam, the warps will be
carried forward to the extent of the motion of the rocking bars, in doing which
the last shoot of weft is taken beyond the reach of the reed at its next "beat up.”
We then throw two or more shoots of weft across the warp, and afterwards cause
the rocking bars to rock in the opposite direction taking the warp back again, so
that when the reed beats up again, the few shoots of weft last put in, will be beaten

page_text: up to the weft previously beaten up, in doing which a portion of the warp coming
off the additional beam S (and which is not held tight like the warp used in
forming the ground of the fabric) is pulled or drawn forward, and from its position
must necessarily rise above the surface of the fabric, and form loops thereby.
The operation is again and again repeated, continuously so, by which means we
are enabled to produce a looped fabric by positive and expeditious means, without
much alteration of the loom.
Although we have stated that the loops are formed on the face of the fabric, they.
may be placed at the back, or on both sides at the same time.
In Figure 4 are various illustrations of the form and style of loop produced by
our improved apparatus.
Having now particularly described and ascertained the nature of our said
Invention, and in what manner the same is to be performed, we declare that what
we claim is ;
Firstly. The employment of the rocking bars E and F for carrying the warp
backward and forward for the purpose of forming looped fabrics.
Secondly. The apparatus substantially as herein shewn and described, for opera-
ting the rocking bars.