Improvements in Means for Effecting the Movement of the Wires of Mechanical Looms for Manufacturing Plush and the like.
Year: 1892

page_text: Date of Application, 21st Jan., 1892
Complete Specification Left, 3rd Sept., 1892-Accepted, 15th Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in Means for Effecting the Movement of the Wires of
Mechanical Looms for Manufacturing Plush and the like.
I, EMIL CLAVIEZ of No. 19 Neue Dresdnerstrasse in the City of Chemnitz
Saxony Manufacturer do hereby declare the nature of this invention to be as
follows:-
The objects of my invention are 1) to cause the wires to re-enter slowly and at a
uniform speed. 2) to diminish the jerk caused by the reversing notion of the cord
drum.
In order to attain the first named object according to my invention the motion
of the drum shaft is effected by two clutch wheels loose on the drum shaft and
running in opposite directions and at different speeds and driving to and fro between
each other imparting nearly one revolution to it-a catch coupled to the shaft by
a groove and tongue.
An oscillating motion is imparted to the catch by slanting shoulders fixed to the
frame and pins attached to the clutch wheels, the arrangement being such that
when the catch is pushed. by the clutch wheel against the slanting shoulder it is
caused to slide sideways and thus get out of the reach of the wheel that has imparted
the motion and be caught by the clutch wheel running in the opposite direction
and as soon as it strikes again against a slanting shoulder it is again pushed
out of the reach of the second wheel and into the reach of the first and so on.
This oscillating motion of the catch is of course communicated to the shaft to
which the catch is fixed and consequently by gearing to the slide carrying the wire:
Object No. 2 of my invention is attained by applying a break to the drum towards
the end of its motion thus starting the reverse motion after the drum has come to
a complete stop.
Dated this 21st day of January 1892
BONNE & Co.,
57, Chancery Lane, W.C., Authorized Patent Agents.
COMPLETE SPECIFICATION
Improvements in Means for Effecting the Movement of the Wires of
Mechanical Looms for Manufacturing Plush and the like.
I, EMIL CLAVIEZ, of No. 19 Neue Dresdnerstrasse, in the City of Chemnitz,
Saxony, Manufacturer, 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 :—
This invention relates to apparatus employed for the purpose of inserting and
withdrawing the wires in power looms for weaving plush and similar pile fabrics.
Its objects are, firstly to enable the wires to be withdrawn comparatively slowly
and at a uniform speed and to be inserted quickly; and, secondly, to prevent or
diminish the shocks caused by the reversal of the apparatus.
I will particularly describe and ascertain the nature of my invention with reference
to the accompanying drawings.
In these drawings, Figure 1 is a front view; Figure 2 a side view; and Figure 3.
a plan of the apparatus.
The remaining figures are diagrams and views of details which will be hereinafter
explained.
In broad power looms for weaving plush, carpets, and other fabrics in which the
[Price 8dt

page_text: warp has to be raised by wires inserted into the shed, very considerable effort is
required to withdraw the wires, whether or not the pile is simultaneously cut by a
knife on the wire. It is therefore obvious that it will be an advantage to withdraw
the wires at a comparatively slow and uniform speed. It will also be an advantage
to insert the wire quickly, and as nearly as possible with the speed of the shuttle.
This is especially the case with regard to those looms in which the wires are
constructed with knives at their ends for cutting the raised warp ends and forming
the pile, and in which the wires must be inserted at a sufficiently open part of the
shed to avoid cutting the warp during their insertion.
According to these improvements the wires are withdrawn and inserted by means
of a small carriage c, Figures 11, 12, and 13, which is moved alternately in opposite
directions by means of an endless band receiving motion from the drum d. This
drum is rotated at a comparatively slow speed in one direction whilst the carriage
is withdrawing the wire, and at a quick speed in the opposite direction in effecting
its insertion, the differential rotation of the drum being effected by the means
hereinafter described. The prevention of shocks, upon the change in direction of
rotation, effect by means of a brake applied at the end of each movement, so
that each motion commences from a state of rest.
at
The bar B, in which there is a groove for the reception of the wires, is pivoted
and is brought into the position shewn in Figure 11 when the lathe is at the
back of its stroke and when the wire R is pushed into the shed by the carriage c.
The bar B, is then brought into the position shown by Figures 3 and 12, when its
wire groove is opposite to the wire furthest from the reed. This wire is now caught
by the hook or catch on c, and is withdrawn into the groove on B. The carriage c,
slides upon the bar C.
The arrangement of the apparatus illustrated by Figures 1, 2, 3, is based upon
the Crompton system, and the cycle of movements consists of three stages. Of
these, the first consists in lifting the pile warp ends by means of the jacquard from u
to, Figure 8, the shuttle is picked from right to left and the shaft has made one
revolution. The second consists in lifting the threads from to c, inserting the
wire R, the shaft making its second revolution. The third consists in lowering the
threads from e to b, and from 6 to a, and returning the shuttle to the right, binding
in the warp, the shaft making its third revolution.
According to this cycle, it is necessary that the wire R should be pulled out
during two revolutions of the shaft and be inserted during one.
For the purpose of withdrawing the wire, a hook on the sliding carriage c,
at the end of the second motion of the cycle and the commencement of the third,
engages the end of the wire, and withdraws it during the third and first motions.
It will be seen that if desired, instead of inserting a wire after every third
rotation of the crank shaft it may be inserted after four or after six revolutions.
The gearing for operating the carriage is shewn in Figures 1, 2, 3, and 13, and
diagrammatically by Figures 9 and 10.
A spur pinion a is fixed upon the crank shaft a' and gears with the wheel b, fixed
on the shaft . The pinion has 16 teeth, and the wheel 96. On the shaft bare
also fixed the opposed bevel wheels e and f, each of which has 48 teeth. The
wheels and drive the bevel wheels on, which are coaxial, and which have
14 teeth each. The wheel o is fixed upon the shaft of and the wheel n upon the
sleeve n to which the wheel g is secured. This wheel has 35 teeth and gears with
the wheel i, having 28 teeth, which is mounted to run freely upon shaft թ. On the
shaft of there is also fixed the wheel h, which has 105 teeth and gears with the
wheel having 25 teeth, which runs freely on the shaft pin the opposite direction
to the wheel on the same shaft. The wheel is fitted with one tappet k³, and
the wheel with four tappets i, 11, 111, and 1, as shewn by Figures 4 and 6
respectively. The shaft runs in the bearings r, s, and has mounted upon it by a
feather or fast key, the driver, which is compelled to rotate with the shaft but
can slide upon it. This driver is mounted between the wheels i and k, and is
provided with two projections Figure 5. It will be seen that if the driver be

page_text: moved towards k, the projection on that side will be engaged by the tappet on k,
and the shaft p will consequently be rotated in the same direction as that wheel.
If on the other hand, the driver be moved towards i, it will engage with the tappet
on i, and be disengaged from that on k, and the shaft p will be rotated in the
opposite direction. The displacement of the driver from one wheel to the other
is effected by means of the inclined planes m'm" Figure 7, fixed upon a part of
the framing of the apparatus. If the wheel i, (Figure 10, 10, 10) be driving, as
soon as the limb of the driver is brought into contact with the inclined plane m'
(Figure 10) by means of which the driver is displaced to the right, it will be
disengaged with the wheel i, and brought into engagement with the wheel k. The
space between the limbs of the driver permits its passing the inclined plane. As
soon as the driver is engaged by the wheel k, the direction of rotation of the shaft p
is reversed. The drum d, which operates the carriage c, by means of which the
wires are inserted and withdrawn as herein before described, is thus rotated in
opposite directions at different speeds as required.
Figure 9 represents the driver when in contact with and being driven by the
wheel k; the Figure 9", the simultaneous position of the driver 1, relatively to the
inclined planes.
In consequence of the relative number of teeth in the wheels gi and hk,
the wheel k rotates faster than i, and in the opposite direction, and it follows that
when the shaft P is rotated by i, the motion of the drum and carriage is slower.
This motion is in the direction c¹ to c" Figure 11, and accompanies the withdrawal
of the wires from the fabric.
To prevent shocks upon the reversal of the apparatus, I secure a brake disc upon
the end of the shaft p, and arrange above it a brake block r, Figures 2 and 3,
carried by the lever u, which is depressed twice in every revolution of the shaft 6',
by means of tappets w (Figure 3) fixed thereon.
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 :-
1. In looms for weaving plush, carpets, and similar fabrics in which wires are
inserted during the process, apparatus for withdrawing the wires slowly and for
inserting them quickly, constructed and arranged and operated substantially as
herein before described and as illustrated by the accompanying drawings.
2. In combination with apparatus for inserting and withdrawing wires from
fabrics during the weaving, a brake constructed and arranged to be operated by
the crank shaft twice during each of its revolutions, in such a manner as to act
upon the reversing motion just before each reversal, substantially as and for the
purpose hereinbefore described and as illustrated by the accompanying drawings.
Dated this 1st day of September A.D. 1892.
WILLIAM E. HEYS,
Agent for the Applicant.