Improvements in Looms for Weaving Chenille Fabrics.
Year: 1895

page_text: Date o Application, 20th Mar., 1395
Complete Specification Left, 14th Dec.. 1895-Accepted, 18th Jan., 1896
PROVISIONAL SPECIFICATION.
Improvements in Looms for Weaving Chenille Fabrics.
I, EDWARD HOLLINGWORTH, of the Firm of Hutchinson, Hollingworth and
Company, Limited, of Dobcross, in the County of York, Power Loom Makers, do
hereby declare the nature of this invention to be as follows:-
--
My invention has reference to means to be employed for weaving chenille
fabrics, the form of weave being what is known as dupe weaving, and hitherto
effected by dupe healds, but according to my invention I intend to dispense with
dupe healds, and thereby avoid the constant wear and tear occasioned by the
crossing of the warp.
In carrying out my invention when dispensing with dupe healds for weaving
chenille, I adopt metallic connections consisting of two reed-headles. These reed-
headles are composed of dents after the manner of ordinary reeds but between each
dent is placed a reed half the depth of the headle, at the end of which and in the
centre of the said headle is an eye for the warp thread to pass through. For
ordinary dupe weaving I employ two of these reed-headles, the warp thread which
passes through the eye of the half reed in the first headle passing through the dent
in the second headle, and the adjacent warp thread to this passing through the eye
in the half reed of the second headle and through the dent of the first, this method
of threading being repeated throughout the warp. These reed-headles are raised
and lowered by specially formed tappets or other suitable mechanism to form the
shed for the warp, and at the part of the movement where the eyes of the headles
come together, a lateral or swivel motion is given to them by a cam from any
convenient source whereby a crossing is given to the warp threads, that is to say,
the warp thread which passed on the right hand side for one pick, for the second
pick now passing on the left and so on throughout the entire warp.
The means employ for giving this slight horizontal movement to the reed
headle, consists of a swivel motion operated by connecting rod from a cam driven
by an upright shaft of the loom, or from any other suitable revolving part. The
reed headles are opened and closed by two cams or tappets fixed on the tappet or
other shaft of the loom (or other suitable mechanism giving the desired move-
ment). One of these cams is what I term a treading cam, and the other cam is
what I call a following cam, the latter one preventing back-lash and keeping the
reed headles at a suitable degree of tension in their upward and downward move-
ments. By the employment of reed headles or metallic connections between the
two layers of warp threads and dispensing with dupe healds, there will be fewer
breakages of the warp and less wear and tear and consequently a greater pro-
duction of cloth will result therefrom in a given time.
Dated this 19th day of March 1895.
TASKER & CROSSLEY,
Huddersfield, Patent Agents.

page_text: I, EDWARD HOLLINGWORTH, of the Firm of Hutchinson, Hollingworth and
Company, Limited, of Dobcross, in the County of York, Power Loom Makers, 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 has reference to means to be employed for weaving chenille
fabrics, the form of weave being what is known as dupe weaving, and hitherto
effected by dupe healds, but according to my invention I intend to dispense with
dupe healds, and thereby avoid the constant wear and tear occasioned by the
crossing of the warp.
In carrying out my invention when dispensing with dupe healds for weaving
chenille I adopt metallic connections consisting of two reed-headles.
Such being the nature and object of my invention I will now proceed to describe
the same more fully and for that purpose make reference to the accompanying
sheet of drawings wherein Fig. 1 is cross section of a loom having my improvements
applied thereto.
A is the framework of the loom, B the crank shaft and C the bottom or tappet
shaft. D and E are my reed-headles composed of dents a made secure at each
end in horizontal shafts D, E, after the manner of ordinary reeds, but between
each dent a I place another dent half the depth of the headle, at the end of
which half dent and in the centre of the said headle is an eye c for each thread
of warp to pass through. For ordinary dupe weaving I employ two of these reed
headles D, E, the warp threads d which pass through the eye of one half reed in
the front or first headle D thence passes between the dents in the rear or second
headle E whilst the adjacent warp thread e passes through the eye in the half reed
of the second headle E but between the dents of the first headle D, the method of
threading the warp being repeated throughout.
These reed headles are raised and lowered by suitably formed tappets fixed
upon the low shaft C and they are employed to form the shed in the warp. One
of these cams F is what I term a treading cam, and the other cam G is what I
term a following cam, the latter one preventing back-lash and keeping the reed
headles at a suitable degree of tension in their upward and downward movement.
The upper part of the two reed headles are connected together by chain H passing
over grooved pulley I so that the lowering of one heald will be the means of
causing the other heald to be raised and vice versa. When the eyes c in the reed
headles are opposite to each other, a slight lateral or swivel motion is given to
the headles so as to cross the warp threads whereby the warp thread which passed
on the right hand side for one pick for the second pick now passes on the left and
so on throughout the warp for the purpose of giving the dupe weave.
The means
I employ for giving the slight horizontal movement to the reed headles, consists of
a cam J (see plan view Fig. 2) formed in the face of a spur wheel K driven from
the upright shaft L, this cam-through the medium of lever M and connecting
rod N-imparts by means of lever Q a slight backward and forward motion to
the shafts D, E, of the reed headles whereby the warp is transferred alternately
from one dent to the other dent in the reed headles.
By the employment of reed headles or metallic connections composed of dents
and eyeletted half dents between the two layers of warp threads and dispensing
with the dupe healds, there will be fewer breakages of the warp and less wear
and tear, consequently in a given time a greater production of cloth will result
therefrom.

page_text: 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 :-
:-
Firstly. In looms for dupe weaving, the use therein of reed headles composed of
dents and eyeletted half dents arranged alternately and employed in the manner
substantially and for purposes described.
Secondly. In looms for dupe weaving, the use therein of reed headles composed
of dents and eyeletted half dents arranged alternately, such reed headles having
horizontal movements backward and forward for crossing the warp threads all
employed and operated substantially in the manner shewn and described.
Thirdly. In looms for dupe weaving, the use therein of reed headles composed
of dents and eyeletted half dents arranged alternately, such reed headles having
horizontal movements backward and forward for crossing the warp, and also an
upward and downward movement by means of cams such as F and G for forming
the shed, all combined and operated substantially in the manner shewn and for
purposes described.
Dated this 13th day of December 1895.
EDWARD HOLLINGWORTH,
Dobcross Loom Works, Dobcross, Yorkshire.