Improvements in Means or Apparatus employed in Winding, Twisting, or "Doubling Yarn or Thread.
Year: 1892

page_text: Date of Application, 16th Nov., 1892
Complete Specification Left, 16th Aug., 1893-Accepted, 7th Oct., 1893
PROVISIONAL SPECIFICATION.
Improvements in Means or Apparatus employed in Winding,
Twisting, or "Doubling Yarn or Thread.
"
We PRINCE SMITH, of the Firm of Prince Smith & Son, of Burlington Shed,
Keighley in the County of York, Machine Maker and SMITH AMBLER of the
same place, and in the employment of the said firm, Draughtsman do hereby
declare the nature of this invention to be as follows:-
Our invention has for its object to provide simple, economical and effective
means for preventing such imperfect work as "singles," or "single" yarn, "double
knots," or other defects and for enabling piecing up to be readily effected in
winding, twisting, or doubling yarn, or thread.
According to our present invention we so construct and arrange our mechanism
that there shall be detectors which are kept out of operation by the thread or yarn.
both in front of and behind the drawing roller. The operating portions of these
detectors are supported on or form part of levers mounted on fixed or substantially
fixed pivots.
The front roller is also supported in bearings carried by a lever or part which
whilst it co-operates with the other parts, is pivotally supported on a centre which
is fixed or substantially fixed.
In the event of breakage or failure of yarn, or thread, accordingly as it takes
place before, or behind the drawing roller, in a component part of, or in the twisting
thread, the front, or the back detector, kept out of operation, by such filament
comes into contact with a moving part either reciprocating, rotary or equivalently
operated, and the action of the drawing roller on the yarn is stopped, the rotation
of the spindle is suspended and the driving band is transferred from the fast to
the loose pulley by any suitable known means or the driving is equivalently
suspended.
According to an arrangement of mechanism embodying our invention adapted
to be actuated by a reciprocating part, into which the respective detectors come
into contact, when failure, or breakage of yarn occurs, the various filaments pass
through and support each a detector or detector wire which is carried in a guide
way on a rock or pivotted lever provided with catch and stop parts; of the
drawing rollers the upper one is carried in bearings borne by a lever or arm
pivotted to the framing and provided with catch and stop parts and at its lower
end connected to parts adapted to control the rotation of the spindles and the
driving mechanism.
The front detector consists of a hinged arm having an eye for the thread to pass
through and the drag of the thread keeps this arm down in its working position,
with the part in rear of its pivot raised and out of the way of the reciprocating
part.
Catches respectively on the back detector arm and on the drawing roller arnı
are engaged and keep these parts in working position.
But should a back thread break, a detector falls, a projection of the reciprocating
part strikes against it, and tilts its supporting arm disengaging the catches and
letting the drawing upper roller fall, with its supporting arm, forwards until it is
arrested by a suitable stop, and the drawing twisting and driving mechanisms are
suspended.
Should the front thread break the arm carrying the thread guide tilts on its
pivot its end comes in the path of the reciprocating part and by reason of the
action of the same catches on the back detector arm and the upper drawing roller
arm are disengaged and the drawing action stopped.

page_text: The parts may be adapted for use with a cam or rotatory part instead of a
reciprocatory part to effect the knocking over in the event of the detector parts
coming in its path and the mechanism may be otherwise modified in detail without
departing from the general principle of the said invention.
Dated the 16th day of November 1892.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Means or Apparatus employed in Winding,
Twisting, or "Doubling Yarn or Thread.
"
We PRINCE SMITH, of the Firm of Prince Smith and Son, of Burlington Shed,
Keighley in the County of York, Machine Maker and SMITH AMBLER of the
same place, and in the employment of the said firm, Draughtsman 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 simple, economical and effective
means for preventing such imperfect work as "singles," or single yarn, "double
knots or other objects and for enabling piecing up to be readily effected in
winding, twisting, or doubling yarn, or thread..
ני
According to our present invention we so construct and arrange our mechanism
that there shall be detectors which are kept out of operation by the thread or yarn
both in front of and behind the drawing roller. The operating portions of these
detectors are supported on or form part of levers mounted on fixed or substantially
fixed pivots. The front roller is also supported in bearings carried by a lever or
part which whilst it cooperates with the other parts, is pivotally supported on a
centre which is fixed or substantially fixed.
In the event of breakage or failure of yarn, or thread, accordingly as it
takes place before, cr behind the drawing roller, in a component part of,
or in the twisting thread, the front, or the back detector, kept out of opera-
tion, by such filament comes into contact with a moving part either recipro-
cating, rotary or equivalently operated, and the action of the drawing roller on
the yarn is stopped the rotation of the spindle
is transferred from the fast to the break pulley or circle pulley by any suitable
suspended and the driving band
known means or the driving is equivalently suspended.
According to an arrangement of mechanism embodying our invention adapted
to be actuated by a reciprocating part, into which the respective detectors come
into contact, when failure, or breakage of yaru occurs, the various filaments pass
through and support each a detector or detector wire which is carried in a guide
way on a rock or pivotted lever provided with catch and stop parts.
Of the drawing rollers the upper one is carried in bearings borne by a lever
or arm pivotted to the framing and provided with catch and stop parts and at its
lower end connected to parts adapted to control the rotation of the spindles and
the driving mechanism.
The front detector consists of a hinged arm having an eye for the thread to
pass through and the drag of the thread keeps this arm down in its working
position, with the part in rear of its pivot raised and out of the way of the
reciprocating part.
Catches respectively on the back detector arm and on the drawing roller arm
are engaged and keep these parts in working position.
But should a back thread break, a detector falls, a projection of the recipro-
cating part strikes against it and tilts its supporting arm disengaging the catches
and letting the drawing upper roller fall, with its supporting arm, forwards until

page_text: it is arrested by a suitable stop, and the drawing twisting and driving mechanisms
are suspended.
Should the front thread break the arm carrying the thread guide tilts on its
pivot its end comes in the path of the reciprocating part, and by reason of the
action of the same catches on the back detector arm and the upper drawing roller
arm are disengaged and the drawing action stopped.
The parts may be adapted for use with a cam or rotatory part instead of a
reciprocatory part to effect the knocking over in the event of the detector parts
coming in its path and the mechanism may be otherwise modified in detail without
departing from the general principle of the said invention.
The accompanying drawings illustrate means adapted for carrying out our
invention.
Fig. is a sectional elevation shewing each respective part and the relation
they bear to each other when the process of doubling is taking place, although by
substitution of parts as will be well understood the apparatus can be adapted to
twisting or winding.
Fig. 2 is an enlarged view of the rollers and stopping motion.
Fig. 3 is a plan shewing the method of changing the band from the driving
pulley to the brake pulley, and vice versa.
Fig. 4 indicates a slight modification in the form of some of the parts in that
the part E is provided with a spring which engages the end of the part K* in
its motion in one direction, whilst it is pressed out of the way thereby when moving
in the opposite direction.
In order to more clearly understand the nature of our invention, we append the
following list of terms.
A is the frame-work of the machine. B, the head, carrying the peg board B¹ on which
are placed the bobbins (in this case 4) C1 C2 C3 C. D the yarn detector, (only one of
which can be seen in the elevation) D₁ the lever or detector box, centered on its pivot
or fulcrum D², with a projecting piece on its notched end D³. E the wiper, whose front
part is at E', and back part at E. E the wiper shaft Ftop roller swing frame, whose
pivot or fulcrum is at F with a projecting piece at F2. G, top pressing roller.
H bottom roller. I chair on which is swung the detector box D¹, and the top roller
swing frame F. J, the cross rail on which the whole is rigidly fixed K is the front
detector lever, pivotted on its lower arm K2 whose fulcrum is at K¹, and with an
upper arm at K³. The rear extremity of the arm K³ is formed as a hinged latch
rocking on the pivot K' so as to give way to the wiper E in its return motion after
it has acted upon that part so that said wiper can pass it freely. L connecting
wire. M, band fork spindle M' band fork. M' band. N, band pulley N¹ band
pulley snails. O, dead pulley. O angle iron to support dead pulley. 0° cross
rail to carry angle irons O'. P the cap. P' cap bobbin. P' cap spindle.
Before explaining the action of the stopping arrangement we draw attention to
the following particular features of the more important parts of the particular
arrangements herein adopted and shewn for illustration. F, top roller swing frame ;
this swing frame is centered at F', and by the weight of the top pressing roller G,
being placed out of the line of the centres, would revolve around its centre F¹, and
fall in the direction of the cap spindle P2, if it were not prevented from doing 80
by the projecting piece F' engaging into a suitably shaped notch in the arm of the
detector box D¹.
E, wipers The wipers E are made of such a width as to embrace a whole set of
detectors D (in this case 4) and a reciprocating motion is imparted to the wiper
shaft E, so that the back part of the wiper E2 and front part of wiper E is
made to move alternately in the path of the yarn detector D, and the rear end
of the front detector lever K².
N, band pulleys; these pulleys are made of such a width that the bands when
operating the cap spindle P lie closely to the snails N', Fig. 3, the said bands
being passed through band forks M' attached to the band fork spindle M.
O, brake or dead pulleys. The intermediate spaces between the band pulleys N are

page_text: filled up with these pulleys, which are merely supports for the band, and not in
touch with the driving.shaft.
K, front detector levers; this lever is centered at K¹, the front part of which
acts as a thread guide, and the back part which has two arms is so formed that
when the pivoted end K' on the lower arm falls into the path of the front part
of the wiper E¹, the upper arm rests simultaneously on the projecting piece D³ on
the arm of the detector box D¹. A slight preponderance of weight is given to
this end, the drag or tension of the thread during the operation of winding being
sufficient to keep it in the position indicated in the drawing.
The object of the latch on the end of K2 pivotted at K is to allow the wiper to
pass, on its return journey, in case the detecter lever K in its downward motion.
falls onto the top of it.
The effect of a breakage in one or other of the bobbins C, will be as follows
(observing that the threads on their way to the pressing roller pass through and
supports by tension the yarn detector D, and from the pressing rollers onward
to the cap bobbin P¹ they are passed through the front detector lever K). The
yarn detector D (which has hitherto been kept up by the tension of the thread), is
allowed by its own gravity to fall into such a position as to come in contact with
the wiper E the result is that the wiper in its endeavour to reach the end of its
journey forces the detector D against the end of the detector box D¹ the detector
box D₁ thereupon turns about its centre D2 causing the engagement between the
projecting piece F2 of the top roller swing frame, and the suitably shaped notch in
the detector box to be released. The top roller swing frame F in turn revolves
on its centre F1, breaks the contact between each of the rollers G and H, thereby
stopping the delivery of yarn, and by means of a connecting wire L, transmits the
motion to the fork spindle M whose band fork M' shifts the band M' from the
band pulley N to the brake pulley O thus the stoppage of the spindle is identical
with the stoppage of the delivery of the yarn.
In the event of a breakage of the yarn between the rollers and spindles, the
detector lever K, (no longer kept down by the tension of the thread), falls into its
normal position. The pivotted or lower arm K³ coming into contact with the front
part of the wiper E' and the upper arm resting on the projecting piece D³ of the
detector box D', the wiper E in its onward movement depresses the pivotted
end of the front detector lever K2 while the upper arm in turn depresses the
projecting piece D³, on the arm of the detector box D', when the top roller swing
frame F works about its centre F and performs the same operation as before.
In restarting the mechanism after a breakage; the top roller swing frame Fis
pushed back into its position, and simultaneously with this, the band fork M¹ (by
means of the connecting wire L attached to the lower leg of swing frame F) is
swivelled on its centre, thereby forcing the band into the path of the snail N¹, the
snail N¹ in its circular motion completes the operation by forcing the band M' into
its proper position on the band pulley N.
QFig. 3 shews the band in the act of leaving the band pulley N, for the dead
pulley O. Q Fig. 3 shews the band leaving the dead pulley O for the band
pulley N.
These improvements have reference to the class of detector apparatus described
in the Specification of Letters Patent granted to the present applicants dated
June 4 1892 No. 10650 and we would have it understood that we hereby make no
claim to any portion of the invention described and claimed therein.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is:-
1. The construction and arrangement and use in apparatus employed in winding,
twisting or doubling yarn or thread, of detectors both in front of and behind the
drawing roller, the operating portions of which detectors are supported on or form
part of levers mounted on fixed or substantially fixed pivots and which detectors

page_text: respectively are kept out of operation by the thread or yarn so long as the thread
remains intact but when thread breaks or fails, either before or behind the drawing
roller, said detectors cause stoppage of the parts, as and for the purposes set forth.
2. In stopping mechanism for use with apparatus for winding, twisting or doubling
yarn, or thread the employment of detectors in front of the drawing rollers the
operating portion of each of which forms part of a lever mounted on fixed or
substantially fixed pivots provided with catch and stop parts, kept out of operation
by the yarn or thread in combination with detectors behind the drawing rollers
whose operating portions form part of levers or tilting boxes mounted on fixed or
substantially fixed pivots also kept out of operation by the yarn or thread, so that
upon breakage or failure of thread or yarn either between one of the bobbins or their
equivalents and the drawing rollers, or between the drawing rollers and the spindles,
or their equivalents, said detectors will respectively cause other parts of the
mechanism to be operated and the supply and the winding, twisting or doubling
apparatus stopped substantially as set forth.
3. The use of detectors, kept out of operation by the thread or yarn, both in
front of and behind the drawing roller, the operating portions of which said detectors
are supported on or form part of levers mounted on fixed or substantially fixed
pivots in combination with a front roller also supported in bearings carried by a
lever or part which, whilst it cooperates with the other parts, is pivotally supported
on a centre which is fixed or substantially fixed, all as and for the purposes set
forth.
Dated the 15th day of August 1893
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicants.