AN IMPROVED STOP MOTION APPLICABLE TO MACHINES FOR SPINNING, DOUBLING, AND WINDING YARNS OF COTTON AND OTHER FIBRE
Year: 1886

page_text: PPC
Doubling, and Winding Yarns of Cotton and other Fibre.
I, GEORGE KIRKMAN, of Bowling Dyke Mills, Halifax, Yorkshire, Cotton
Doubler do hereby declare the nature of my invention for " AN IMPROVED STOP
MOTION APPLICABLE TO MACHINES FOR SPINNING, DOUBLING, AND WINDING YARNS
OF COTTON AND OTHER FIBRE," to be as follows:-
·
The object of my invention is to arrange, combine, and construct self-acting
mechanisin which will automatically stop the rotation of the spindle on the
breakage of a thread so as to immediately stop the rotation of the bobbin.
In order to carry out my invention I place the wharle loosely upon the spindle,
but the underside of the said wharle is provided with notches so as to engage with
corresponding notches or a pin fixed to the spindle, so that as the wharle is driven
the spindle is caused to rotate thereby, but when the wharle is disengaged from
the clutch or pin on the spindle as hereinafter explained, the wharle will rotate
while the spindle remains standing. A bell-crank lever is also employed the upper
end of which is forked and carries a pin, which pin when raised comes into contact
with another pin projecting from the spindle for the purpose of stopping it, whilst
the lower end of the bell crank lever is weighted so as to keep the parts equally
balanced. The yarn passes through the usual thread guide and so long as the
yarn remains unbroken the several parts work. satisfactorily, but if a thread
breaks, the thread guide which has been upheld thereby, will be liberated and
oscillate or tilt, and in so doing will through the intervention of another lever act
upou the weighted end of the bell-crank lever by which means the wharle would
be lifted up the spindle and out of contact with the clutch thereon causing the
pin on the forked end of the bell-crank lever to engage with the pin projecting
from the spindle consequently the spindle would be immediately stopped although
the wharle continued to revolve, by this means the inconvenience now caused by
breakage is prevented and "single" and other faulty yarn caused by the breakage
of the thread is now avoided.

page_text: Doubling, and Winding Yarns of Cotton and other Fibre.
0
I, GEORGE KIRKMAN, of Bowling Dyke Mills, Halifax, Yorkshire, Cotton
Doubler, do hereby declare the nature of my invention for "AN IMPROVED STOP
MOTION APPLICABLE TO MACHINES FOR SPINNING, DOUBLING, AND WINDING YARNS
OF COTTON AND OTHER FIBRE," and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
The object of my invention is to arrange, combine, and construct self acting
mechanism which will automatically stop the rotation of the spindle on the
breakage of a thread so as to immediately stop the rotation of the bobbin or spool.
In order to carry out my invention I place the wharle loosely upon the spindle
or upon a boss on the said spindle, but the underside of the said wharle is provided
with notches so as to engage with corresponding notches or with a pin fixed to
the spindle or to the boss, so that as the wharle is driven the spindle is caused to
rotate thereby, but when the wharle is disengaged from the clutch or pin on the
spindle or boss as hereinafter explained, the wharle will rotate while the spindle
remains standing. A bell-crank lever is also employed, the upper end of which is
forked and carries a pin, which pin when raised comes into contact with another
pin projecting from the spindle for the purpose of stopping it, otherwise the
momentum it had received would cause the spindle to make many revolutions after
the wharle had ceased to drive it.
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 sectional elevation of such parts of a winding or
doubling frame as is necessary to illustrate my improvements, A represents the
yarn coming from a cop, such yarn passing up against the cross rail B, through the
oscillating guide eye C, over guide rollers D and E, and through another guide
eye F, attached to the lifting rail G, and on to bobbin H, carried by spindle I, all
of which parts are arranged in the ordinary manner. J is a wharle placed loosely
upon the spindle I, and driven by band or tape from tin cylinder, the said wharle
being provided on the underside with a notched boss or clutch a. which fits or
engages with a clutch or pin b projecting from the spindle so constructed and
arranged that when the yarn remains unbroken the wharle will drive the spindle.
K is a bell crank lever capable of oscillating upon a rod L, running full length of
the machine. The upper end of this bell crank lever is forked and is placed under
a collar or flange c forming part of a boss on the upper side of the wharle. The
forked end of the bell crank lever carries a pin d. which when raised as hereinafter
explained comes in contact with a pin e passing through the spindle. M is another
lever capable of oscillating upon a rod N also running lengthwise of the machine,
such lever being weighted at its lower end and supported in a vertical position by
the hooked end f of the oscillating thread guide C. So long as the yarn remains
unbroken the parts occupy the position shewn in Fig. 1, and the machine proceeds

page_text: to do its work satisfactorily, but if the thread breaks the oscillating thread guide O
(which is supported by an unbroken thread) will fall and cease to support the
lever M, allowing the said lever to oscillate in such manner, that the lower end
will cause the forked end of the bell crank lever to lift the wharle up the spindle
so as to disengage the driven wharle from the pin b. which will then cease to drive
the spindle, but in order to immediately stop the spindle the pin d on the forked
end of the lever K will catch on the pine of the spindle so as to instantly arrest its
rotation, otherwise the said spindle would continue to revolve by the momentum it
had received.
By this means the inconvenience now caused by breakage of yarn is prevented
and "single" or other faulty yarn caused by breakage is avoided.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I would have it
understood that what I claim is :-
The loose wharle J so adapted as to drive the spindle or run loosely thereon,
when used in combination with clutches or pins d and s or like equivalents for
stopping the rotation of the spindle; together with the means substantially as
herein shewn and described for operating the wharle on the breakage of the yarn.
Dated this 2nd day of October 1886.
TASKER & CROSSLEY,
Halifax, Agents.