IMPROVEMENTS IN MACHINES FOR WINDING YARNS OR THREADS
Year: 1883

page_text: LETTERS PATENT to William Clark of the firm of A M and W Clark of
53 Chancery Lane in the County of Middlesex Fellow of the Institute of
Patent Agents for an Invention of IMPROVEMENTS IN MACHINES FOR
WINDING YARNS OR THREADS communicated to him from abroad by La
Société Ryo frères of Roubaix, France, Machine-builders
PROVISIONAL SPECIFICATION left by the said William Clark at the Office
of the Commissioners of Patents on the 3rd August 1883.
WILLIAM CLARK of the firm of A. M and W Clark of 53 Chancery Lane in the
County of Middlesex Fellow of the Institute of Patent Agents IMPROVEMENTS
IN MACHINES FOR WINDING YARNS OR THREADS" [communicated to him from
abroad by La Société Ryo frères of Roubaix, France, Machine-builders]
This Invention relates to a machine for uniting two or more yarns or threads so
arranged that should one of the yarns or threads break, the winding of the yarns
or threads from the bobbins of the same group is immediately arrested.
The Invention is illustrated in the accompanying drawing, figure 1 being a
transverse section and figure 2 a face view of so much of the machine as is
necessary to explain its action
The machine is shown as arranged for doubling two yarns or threads for the
sake of simplicity but it will be understood that any other number of yarns or
threads may be similarly united. The yarns from the bobbins M are led through
the eyes m thence over the roller r through the hooks a of yarn guides g to the
spool or bobbin C.
8
Should one of the yarns break while the machine is in motion its corresponding
yarn guide g being no longer retained by the tension of the yarn is caused to rock
on its axis n by its counter-weight p and assumes the position a¹, n, x, p². The
weight p in falling to the position p¹ is struck by the arms on a shaft V which
is mounted to turn in bearings S, the effect being to force p against a plate D
which is mounted on pivots at Ŭ and has arms t supporting roller r, thus drawing
up, chain X attached to a lever L at d and oscillating said lever on its axis a so ns
to bring the tongue e beneath the spool C. The tongue e is drawn between the

page_text: spool C and the drum A which rotates the spool whereby.the spool is raised out of
contact with said roller and censes to rotate.
During this time the chain X being slack the counterbalance P descends and
oscillates plate D until it comes in contact with stop b' bringing roller r to r¹ and
shifting the axis n to n¹. This movement of axis n causes the yarn guide g, which
first occupied the position 8, n, x, p, to move into position 8', n¹, x¹¹, pl and to
abut against the front h of cover Q raising p out of the way of shaft V. The
roller also being brought to r¹ leaves the hooks &¹ of the yarn guides g clear and
projecting well forward to allow of the ready insertion of the yarns in said hooks
by the attendant.
2"
To again put the bobbin in action the end of the broken yarn or thread, which
will always be between points s and k, is united to the end from the corresponding
bobbin and inserted in hook s by the attendant who presses with one band
upon one of the arms and rocks plate D so as to bring the roller back to r,
and then with his other hand raises the arm B, which carries spool C, to allow
lever L to return to its original position and withdraw tongue e whereby the spool
is again allowed to come into contact with roller A. The spool being again
rotated, the yarn is drawn off the bobbins M the tension of which causes the yarn
guides g to pass from 8' to 8, and the operation proceeds as before
T is a table which. carries framing Y upon which the parts are mounted.
E E F gearing.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Clark in the Patent Office on the 1st February 1884.
WILLIAM CLARK of the firm of A. M. and W. Clark of 53 Chancery Lane in the
County of Middlesex Fellow of the Institute of Patent Agents "IMPROVEMENTS
IN MACHINES FOR WINDING YARNS OR THREADS a communication to me from
abroad by La Société Ryo, Frères of Roubaix, France, Machine Builders
29
This Invention relates to a stop motion for machines for doubling or uniting two
or more yarns or threads which is so arranged that should one of the yarns or
threads break, the winding of the yarns or threads from the other bobbins of the
same group is immediately arrested.
Many machines have been devised for effecting this object, but they all possoss
disadvantages which the improved machine of this invention is designed to
obviate.
The Invention is illustrated in the acompanying drawing, figure 1 being a
transverse section and figure 2 a face view of so much of the machine as is
necessary to explain its action.
The machine is for the sake of simplicity shown as arranged for doubling two
yarns or threads only but it will be understood that any other number of yarns or
threads may be similarly united.
The yarns to be doubled are led from spools M through eyes m over roller r
through the feeler hooks s to the spool C on which they are wound by frictional
contact of drum A.
8
The roller r is journaled in a pair of arms t of a bell crank frame D pivotted at U
and to whose other arm f is attached a counterweight P. The feeler hooks s are
at the ends of bell crank levers g pivotted on a cross pin n in the frame D and to
their other arms are attached pendent weights p. The frame D is attached by
a chain X to the arm d of a bell crank lever L pivotted at a in a bracket R and
connected at i to a sliding bar b terminating in a wedge shaped tongue e of
leather or metal whose point is in line with and close proximity to the bite of the
drum A and spool C. This spool is journaled in arms B pivotted to the frame at o.
The frame D being placed in the position shown remains in that position the
pull of the weight P being ineffectual to oscillate it and the yarns passing beneath
the feeler hooks 8 the levers g are by the tension of the yarns retained in tho
position shown in full lines. Should however a yarn break its feeler g will be
rocked on its axis n by the weight p and assume the position s¹n x p². The
weight p is thereby lowered into the path of blades von a revolving shaft V by
which it is struck and is thereby forced against the back plate of frame D. The
latter is thus rocked on its pivot U and caused to draw up chain X oscillate
lever L and bring tongue e into the bite of C and A between which it is drawn by
the rotation of drum A. The spool is raised out of contact with the drum and
ceases to rotate. The chain X being thus slackened the weight P rocks frame D
further until it strikes stop b¹ roller r being then at r¹ and axis n at n'. This
movement of axis n causes the bell crank levers g to assume the position s¹, n',
x", p, where they abut against the front h of guard plate or cover Q thus raising
the weights p to p³ out of the way of shaft V. The roller r being thrown back
tor leaves the feeler hooks projecting well forward to allow of the broken yarn to
be readily replaced in its hook.
To replace the mechanism in working position the end of the broken yarn or
thread (which will always be between points 8 and k) is pieced up to the end from
the corresponding bobbin and placed under hooks by the attendant who presses
with one hand upon one of the arms t and rocks frame D forward and with the

page_text: other hand raises the frame B, to allow lever L to return to its original position
and withdraw tongue e. The spool C again coming in contact with drum A is
rotated and winds on the yarn whose tension draws the levers g forwards from 8¹
to s, and the operation proceeds as before.
T is a table which carries framing Y upon which the parts are mounted.
EEF gear wheels for transmitting motion from drum shaft A to shaft V.
The chief advantages of the above arrangement are-1st the stop motion is
instantaneous thus preventing the broken ends from being wound on the spools and
facilitating the piecing up and also preventing waste.
2nd Owing to the roller r being caused to rotate by the friction of the yarns,
much finer counts of yarns may be employed than has hitherto been possible in
these machines.
Having described the nature of the said Invention and the manner of performing
the same 1 declare that what I claim as the Invention to be protected by the herein-
before in part recited Letters Patent is :--
-
First. In a machine for doubling or uniting yarns or threads, the combination
and arrangement of stop motion mechanism substantially as shown and described.
Second. In a stop motion for a machine for doubling or uniting yarns or
threads, the combination of the counterweighted rocking frame, the hooked bell
crank levers pivotted thereto, their pendent weights, and the revolving blades for
producing the oscillation of said frame when a yarn breaks, substantially as shown
and described.
Third. The combination with the mechanism specified in claim 2 of the bell
crank lever L sliding rod b and tongue e, substantially as and for the purpose
specified.
Fourth. The combination with the mechanism specified in claims-2-and-3-of-the
guard plate Qas and for the purpose specified.
In witness whereof. I. the said William Clark have hereunto set my hand and
seal this First day of February in the year of our Lord One thousand eight
hundred and eighty four.
W CLARK (L.S.)