Improvements in Machinery for Winding, Doubling, and Twisting Yarns or Threads.
Year: 1893

page_text: Date of Application, 18th May, 1893
Complete Specification Left, 17th Feb., 1894-Accepted, 17th Mar., 1894
PROVISIONAL SPECIFICATION.
Improvements in Machinery for Winding, Doubling, and Twisting
Yarns or Threads.
--
I, JOSEPH FARRAR, of Globe Works, Halifax, in the County of York,
Machine Maker, do hereby declare the nature of this invention to be as follows
The object of this invention is to stop the rotation of the bobbin on the
breakage, absence or slackness of yarn, and this I propose to do by automatic or
self-acting mechanism.
In carrying out my invention I form the ordinary tin driving cylinder of two
diameters, there being an enlarged diameter and a smaller diameter for each
driving cord or tape, that is to say, all along the periphery of the tin driving
cylinder there are formed elevated surfaces, one for every one or two cords, the
arrangement being such, that when the driving cord is passing over the enlarged
diameter of the cylinder the bobbin is being driven, but when the driving cord gets
onto the lesser diameter the bobbin stops rotating.
To transfer the cord from the driving part of the cylinder, I make use of a
vertical lever described and shewn in the Specification of a prior Patent granted
to me on the 3rd day of September 1890 No. 13,821. The lever referred to in this
Specification is marked G and it is operated by a self-acting stop motion on the
breakage, absence or slackness of yarn.
To this lever I attach a suitable arrangement of levers and rods so that when
the said lever G is operated through any of the causes just mentioned, a hook or
strap guide connected thereto is operated and which transfers the driving cord
from the enlarged diameter of the tin cylinder onto the smaller portion thereof,
whereby the driving cord ceases to rotate the bobbin, and simultaneously therewithi
the said lever applies a brake to the spindle whereupon further winding, doubling
or twisting is discontinued. On the operative putting the yarn into working order
and re-adjusting the lever G, the brake is removed and the strap fork transfers the
driving cord onto the enlarged or driving portion of the tin cylinder, this operation
of lifting the driving cord up from the small to the large diameter being assisted
by recesses or hooks made in or attached to the edge of the enlarged driving
surface, which recesses whilst serving to lift the driving cord from the lesser
diameter to the larger one, forms no impediment to the cord being slipped off the
larger diameter.
If thought desirable hooks may be attached to the smaller diameter for lifting
the cord up, and pulleys may be used instead of the tin cylinder.
1002 ..M ... הדנית
TASKER & CROSSLEY,
Halifax, Agents.
COMPLETE
SPECIFICATION.
Improvements in Machinery for Winding, Doubling, and Twisting
Yarns or Threads.
I, JOSEPH FARRAR, of Globe Works, Halifax, in the County of York,
Machine Maker, 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 :-
The object of this invention is to stop the rotation of the bobbin or spindle on

page_text: the breakage, absence or slackness of yarn, and this I propose to do by automatic
or self-acting mechanism.
Such being the nature and object of, my invention, I will now proceed to describe
the same more fully, and to illustrate my invention by the accompanying sheets of
drawings wherein A is the framework of a twisting frame, B the spindle,
C and D the yarn feeding rollers, the latter of which is mounted in bracket E
hinged at F. The upper roller D is made to leave the bottom roller when the
yarn breaks between the feed rollers and the unwinding bobbin, also when the
unwinding bobbin becomes empty so as to discontinue feeding yarn forward until
the broken thread has been pieced up or the empty bobbin replaced and this
separation of the two rollers is effected in the following manner :-
The yarn on issuing from the unwinding bobbin to the feed rollers C, D, supports
or carries a detector or drop wire G carried in a swing box H. If therefore the
yarn breaks or the bobbin empties the drop wire descends and comes into contact
with a revolving triangular shaft I which forces the swinging lever J off the
frame K supporting the said lever J, the effect of which is, that the weight of the
various parts will cause the bracket E to work upon its pivot F and thus remove
the upper roller D from contact with the bettom driving roller C in doing which,
the said bracket E descends carrying with it the vertical rod L causing it to
oscillate the horizontal shaft M and thus make the strap fork N to transfer the
driving cord O from one revolving part to another revolving part of the driving
drum or pulley P. The separation of the roller D from the roller C and the
descent of the bracket E will also happen if the thread breaks at any point
between the bobbin and the feed rollers.
The trap lever e maintains the position shewn in the drawings by the tension of
the yarn passing through the eyelet f, but on the yarn breaking or snarling the
tension is removed off the eyelet whereby the trap lever e will rise in front and
descend behind and thus the part Z will come into contact with the revolving
shaft I which will force the trap lever e forward in the direction of the arrow g
whereby the short vertical arm / will oscillate upon the pivot i and through the
intervention of the connecting rod; the swinging lever J will be pulled off the
supporting frame K whereby the roller D would be separated from the roller C
and the driving cord O moved by strap fork N. The self-acting stopping motion
however forms no part of my present invention, such stop motion being fully
shewn and described in my former Patent No. 13821 of 1890, only I now utilise it
for the purpose of carrying out my improvements now about to be described.
.
In carrying out my present invention I employ a driving pulley P having two
revolving diameters, shewn in the front view at Fig. 2. This pulley has two rims
or flanges a, b, one for driving the spindle on the left hand of the frame, and the
other for driving the spindle on the right hand of the frame, therefore when the
stop motion mechanism drops as previously explained the vertical rod causes
the strap fork N to slip the cord off the elevated revolving part a or b into the
revolving groove c and thus slacken the driving cord as shewn in dotted lines in
Fig. 1 whereby the spindle would cease to be driven, but to insure that the driving
cord is instantaneously stopped, I fasten a fork or claw R on one end of the
horizontal rod M so that when the horizontal rod is oscillated for shifting the cord
from the enlarged part of the driving pulley, the fork R is made to bend the cord
into or over a grooved saddle formed in the top of the small bracket S shewn
clearly in end view Fig. 3 and side view Fig. 4, the bending of the cord being
sufficient to prevent its moving when slackened. For bending the driving cord on
the opposite side of the machine the fork R would have to be raised, see Fig. 5, so
as to bend the cord in or under a grooved saddle or hook formed in a corresponding
bracket S. An important feature of my invention however in addition to
throwing the driving cord into the recess c when stopping the spindle consists in
the employment of automatic means for lifting the cord from the groove onto the
elevated part of the driving pulley a or b, and this I effect in the following
manner-At the inner edges of the parts a, b, I form three or other suitable

page_text: number of angular recesses or indents d, see Figs. 6, 7, 8, and 9, when therefore
the attendant pieces up the broken yarn or readjusts it and raises the swinging
lever J onto the holding bar K the vertical rod L is raised causing the strap fork N
to place the driving cord over the elevated flange a or b, see O' in Fig. 6, when
one of the angular recesses or indents d will catch hold of the said cord O', thus
placed by the strap guide, whereby the said cord will be lifted out of the revolving
groove c and transferred onto the elevated part of the pulley consequently the
spindle will be revolved again until stopped.
Instead of using the fork R to bend the driving cord into or over the grooved
saddle in the bracket S to arrest its traverse I may apply a brake to the wharle T,
see Figs. 10 and 11, where U is an arm curved to the radius of the wharle. This
arm is pivoted at V and when not required to be in use it falls away from the
wharle by its own weight, but when the part E moves through the breakage of the
yarn it strikes the part W forcing the foot of the arm U against the wharle T
whereby it is braked simultaneously with the slackening and transference of the
driving cord into the groove c.. N¹ is another strap fork acted upon by the stop
motion at the opposite side of the frame. Although I have shewn and described
driving pulley P of two diameters for the purposes described, it is obvious that an
ordinary tin driving cylinder may be used and made with two different diameters
all along its length opposite each spindle so as to drive the cord in the manner
described with regard to the pulleys.
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 machinery for winding, doubling and twisting yarns, the use therein
of one or more revolving pulleys or revolving drums of two diameters for driving
the spindles and for elackening the driving band.
Secondly. In machinery for winding, doubling and twisting yarus, having one or
more pulleys or drums of two diameters for driving and for slackening the driving
band, the combination therewith of the claw or fork R for seizing or bending the
driving cord.
Thirdly. In machinery for winding, doubling and twisting yarus, the use therein
of drums or pulleys of two diameters, together with means for transferring the
driving cord from the larger revolving surface to the lesser revolving surface for
slackening the driving cord.
Fourthly. In machinery for winding, doubling and twisting yarns, the use
therein of drums or pulleys of two diameters, together with recesses d for lifting
the driving cord from the smaller revolving diameter onto the larger revolving
diameter for driving the spindles.
Lastly. In machinery for winding, doubling and twisting yarns, having
revolving pulleys or drums of different diameters, the combination therewith of
the brake U operated in the manner illustrated in the drawings and described
herein.
Dated this 16th day of February 1894..
TASKER & CROSSLEY,
Halifax, Agents.