Improvements in Looms for Weaving Chenille Fabrics.
Year: 1890

page_text: Date of Application, 11th Mar., 1890
Complete Specification Left, 11th Dec., 1890-Accepted, 17th Jan., 1891
PROVISIONAL SPECIFICATION.
Improvements in Looms for Weaving Chenille Fabrics.
We EDWARD SMITя of Kidderminster in the County of Worcester Manufacturer
and THOMAS OOPER of the same place Machinist do hereby declare the nature of this
invention to be as follows:-
This invention has for its object to provide in looms for weaving chenille fabrics
simple and convenient means for passing the chenille weft through the sheds of warp
without the use of picking mechanism as heretofore employed.
According to this invention the chenille is carried in a box constituting a shuttle
provided with rollers which are in contact with and embraced by other rollers carried
on a frame arranged to slide to and fro across the loom above the sley so that when
this sliding frame passes across the loom it carrics or pushes with it the box or shuttle
containing the chonille.
The motion of the sliding frame may be obtained by connecting to its opposite ends
a cord or chain which passes round rollers or pulleys mounted on the frame of the
loom motion being imparted to one of these pulleys by means of gearing or other
convenient means from a cam on the cam shaft of the loom so as to draw the sliding
frame and the box or shuttle containing the chenille to and fro across the loom at the
required periods the rollers on the sliding frame passing outside the top warp threads
of the shed, whilst the box or shutter with its rollers pass through the shed, the upper
warp threads thereof being between the rollers on the sliding frame and those on the
box or shuttle.
4
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C.; Agents.
COMPLETE SPECIFICATION.
Improvements in Looms for Weaving Chenille Fabrics.
We EDWARD SMITH of Kidderminster in the County of Worcestor Manufacturer
and THOMAS COOPER of the same place Machinist 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 :-
Our invention has for its object to provide in looms for weaving chenille fabrics
simple means for passing the chenille weft through the sheds of the warp without the
use of picking mechanisin as heretofore and also to provide simple means for varying
as required the extent of rotation of the work roller without loosening nuts or changing
wheels.
The chenille weft is carried in a box constituting a shuttle, but instead of throwing
this box or shuttle across the warps by picking mechanism as heretofore the said box
or shuttle is drawn or propelled by means of a frame or carriage caused to travel to
and fro across the loom along a rail arranged above the sley, lathe or batten-the box
or shuttle passing through the sheds of the warps whilst the carriage travels over the
upper warp threads of the shed. The traversing motion of the sliding frame or carriage
may be obtained by any convenient means such for example by gearing or by means
of a cord or chain or the like attached to the opposite ends of the carriage the said
cord or the like being passed round grooved pulleys mounted on opposite ends of the
loom and secured to one of these pulleys in such a manner that when this pulley is
rotated the cord or the like will be wound thereon so as to draw the carriage or frame
across the
warps. The pulley to which the cord or the like is attached my be rotated
by any convenient means from the tappet shaft or other convenient and suitable part

page_text: of the loom for example there may be provided on or attached to the hoss of the pulley
a pinion gearing with a segmental rack operated by a cam on the tappet shaft so as
to impart to the pulley the required reciprocating rotary motions at the required
periods.
The carriage may be provided with rollers to engage with similar rollers carried on
the box or shuttle so that as the carriage is traversed to and fro across the loom it
will carry with it the box or shuttle. Any desired number of shots or passes of the
box or shuttle may be made between each beat up of the sley lathe or batten and in
order to vary the motion of the "work take up roller" according to the number of
shots, simple and convenient means are provided for readily altering the throw of the
pawl which imparts through a ratchet wheel an intermittent motion to the said work
roller.
And in order that our said invention may be fully understood we shall now proceed
more particularly to describe the same and for that purpose shall refer to the annexed
sheet of drawings the same letters of reference indicating corresponding parts in both
figures.
Figures 1 and 2 are views at right angles to each other of so much of a loom as is
necessary to illustrate our invention the parts which are omitted and which form no
part of onr invention being constructed in the usual or other suitable manner.
A is the main frame of the loom, B the cam or tappet shaft, C the work take
up roller and D the sley lathe or batten. Extending from one end to the other.
of the loom above the top of the sley lathe or hatten, is a bar or rail E attached at
its opposite ends to the shuttle hoxes or stationary housings F. Fitted to slide along
the bar or rail E is a frame or carriage G to the opposite ends of which are attached
a cord H which passes round a double grooved palley I and a single grooved-pulley K
mounted at opposite ends of the loom. The cord passes twice round the
pulley I and is connected thereto so that when the said pulley is rotated the cord
will be wound thereon at one side and unwound from the opposite side and thereby
draw the carriage G along the bar or rail E. The chenille weft is contained in the
box or shuttle L and passes out therefrom through holes c. Fitted to turn in
bearings at opposite ends of the box 1, are rollers a engaging similar rollers & carried
on the frame or carriage G so that as the carriage travols along the bar or rail E
it propels or carries with it the box or shuttle, passing it through the she:l formed
by the warps, a weft of chenille being thus laid in the shed at each traverse of the
carriage. The weft may be beat up after each shot or passage of the shuttle, or if
desired several shots or passes may be made before the beat up takes place. The shots
of weft are bound by the warps operated by the heddles in the usual manner. The bos
or shuttle L is preferably provided with running rollers or wheels a² which bear on
the race b² to reduce friction.
The rotary reciprocating motion of the pulley I to impart the to and fro motions to the
carriage G and hox or shuttle L is effected by means of a toothed segment M gearing
with a pinion N formed on or attached to the boss of the pulley I the segment M
boing centred at O to a bracket 12 and connected by a rod P-to a lever Q centred
at R to the frame of the loom.
The lever Q carries a friction bowl or roller S fitting a cam groove T provided in
the driven wheel T on the tappel shaft B-the cam groove being suitably shaped and
timed to impart through the segment M the necessary reciprocating motions to the
pulley to traverse the carriage G and box or shuttle L across the loom at the
required periods. The work take up roller is partially rotated at each beat up
motion of the sley or lathe so as to take up the work as fast as it is woven which
partial rotation of the roller may be varied as required according to the number of
shots or passes of the shuttle or box L between each beat up motion of the sley lathe
or batten.
On the axis of the take up roller G is a worm wheel with which gears a worm g
fast on a short shaft mounted in bearings on the frame A of the loom. On this
shaft is a ratchet wheel e with which engages a pawl d carried on a lever i mounted
so as to turn on the shaft f: The lever i is connected by a rod-k to an arm l'projecting

page_text: from the sley lathe or batten D so that at each forward or beating up motion of the
sley the pawl will be caused to engage and turn the ratchet wheel e and impart
through the worm g and worm wheel a partial rotation to the roller (to an extent
which will depend upon the distance from the centre of the wheel e at which the rod k
is connected to the lever i. To facilitate the adjustment of this connection of the
rod with the lever i without loosening nuts the lever is provided with a number of
studs n n n arranged and fixed at the required positions on the lever to suit the
extent of rotation required to be given to the take up roller so that when it is required
to increase or reduce the extent of the rotation of the said roller the rod may be
readily disconnected from the stud with which it was engaged and slipped onto one of
the other studs as required. Any desired number of studs may be provided to suit
any variation required in the extent of motion of the roller C-whereby a considerable
saving of time and accuracy of adjustment is effected.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to bo performed we declare that what we
caim is:-
1st. In looms for weaving chenille fabrics a box or shuttle containing the chenille
weft, caused to pass through the sheds formed by the warp threads, by means of a
frame or carriage traversed to and fro across and outside the sheds substantially as
herein before described.
2nd. In looms for weaving chenille fabrics the box or shuttle L with its rollers a in
combination with the carriage G and its rollers & and means for imparting to the
carriage G and box or shuttle L a reciprocating or to and fro motion across the loom
substantially as hereinbefore described with reference to the accompanying drawings.
3rd. In looms for weaving chenillo fabrics the box or shuttle L, carriage G, cord H
or its equivalent, pulleys I and K pinion N, segment M and the can T or its
equivalent the whole being arranged to operate substantially in the manner and for
the purpose hereinbefore described with reference to the accompanying drawings.
4th. In looms for weaving chenille fabrics tho combination with the means for
passing the chenille weft through the sheds without the use of ordinary picking
mechanism as hereinbefore described of means for readily altering the extent of
motion of the work take up roller without the necessity for change wheels or releasing
nuts substantially as hereinbefore described and illustrated in the accompanying
drawings.
Tatal this 11th down 1000
J. H. JOHNSON & Co., .
Agents.