CERTAIN IMPROVEMENTS IN MULES AND TWINERS FOR CRENVENA AND DANDING
Year: 1874

page_text: LETTERS PATENT to John Clegg, of Oldham, in the County of
Lancaster, and Robert Taylor, of the same Place, Machinists, for
the Invention of "CERTAIN IMPROVEMENTS IN MULES AND TWINERS FOR
CRENVENA AND DANDING"
Sealed the 16th June 1874, and dated the 13th February 1874.
PROVISIONAL SPECIFICATION left by the said John Clegg and
Robert Taylor at the Office of the Commissioners of Patents, with
their Petition, on the 13th February 1874.
We, JOHN CLEGG, of Oldham, in the County of Lancaster, and
ROBERT TAYLOR, of the same Place, Machinists, do hereby declare the
nature of the said Invention for "CERTAIN IMPROVEMENTS IN MULES AND
TWINERS FOR SPINNING AND DOUBLING," to be as follows:-
Our Invention refers to the winding motion of self-acting mules and
twiners, and it is designed to give an increased speed to the spindles
during the formation of the cop nose. To accomplish this we use a
tapering scroll fixed on the end of the winding drum. One end of the

page_text: winding chain is fastened to the smallest portion of the tapering scroll,
and then after passing over a bowl attached to a slide fitting on the
quadrant arm it is secured to the quadrant nut. As the cop bottom is
being formed the nut ascends the quadrant by means of the ordinary
quadrant screw, the said nut also carrying the slide over which the
chain passes in front of it as it ascends the quadrant arm until it
arrives at its destination, at which place the slide is secured by a pawl
and ratchet or other means, and becomes stationary during the rest of
the operation.
When it is desirable to put our Invention into operation the quadrant
screw is reversed (by self-acting apparatus connected to the copping
motion hereafter to be explained), causing the quadrant nut to descend
to its original position, and thus withdrawing from the parallel portion
of the winding drum a sufficient length of chain, thereby causing the
chain to unwind from the taper or scroll portion of the drum in pro-
portion to the descent of the quadrant nut.
The above operation therefore gives a uniformly increased velocity to
the spindles in proportion to the tapering of the same.
Our Invention may be used when the quadrant screw is turned by
hand.
The copping plate in its traverse along the shaper screw comes in
contact with an inclined lever, which is adjustable, and fixed on a
rocking shaft parallel with and below the shaper screw. On the rocking
shaft is fixed another arm or lever to release a catch or latch lever, one
end of which catch lever is secured to a swivel stop lever placed
immediately below the quadrant. This catch lever is brought into
action to bring the swivel stop lever into a vertical position by means of
a spring. On the quadrant stud is a loose lever, to which is secured by
a pin a connecting rod, which is fastened at the upper end to a catch or
click working into a ratchet wheel, which has a bevel wheel secured to
it, both working loose on a stud, which is secured to the quadrant arm
and geared into another bevel wheel keyed to the end of the quadrant
screw.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Clegg and Robert Taylor in the Great
Seal Patent Office on the 8th August 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, Jonn
CLEGG, of Oldham, in the County of Lancaster, and ROBERT TAYLOR,
of the same Place, Machinists, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirteenth day of February, in the
year of our Lord One thousand cight hundred and seventy-four, in the
thirty-seventh year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said John Clegg and Robert Taylor,
Her special licence that we, the said John Clegg and Robert Taylor,
our exccutors, administrators, and assigns, or such others as we,
the said John Clegg and Robert Taylor, our executors, adminis-
trators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "CERTAIN IMPROVEMENTS IN
MULES AND TWINERS FOR SPINNING AND DOUBLING," upon the condition
(amongst others) that we, the said John Clegg and Robert Taylor, our
executors or administrators, by an instrument in writing under our,
or their, or one of our or their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be filed
in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that we, the said John Clegg and Robert Taylor,
do hereby declare the nature of our said Invention, and in what
manner the same is to be performed, to be particularly described and
ascertained in and by the following statement (that is to say) :-
Our Invention refers to the winding motion of self-acting mules and
twiners for spinning and doubling, and it consists in an improved com-
bination of machinery for giving an increased speed to the spindles
during the formation of the cop nose,

page_text: And in order that our Invention may be fully understood and readily
carried into operation, we will proceed to describe the accompanying
Sheet of Drawings, reference being had to the figures and letters marked
thereon.
Fig. 1 is a side elevation of the headstock and carriage of a self-acting
mule or twiner, and Fig. 2 an end view of part of the same, to which
our improvements are applied.
In Fig. 1 a, a, are the drawing rollers; b, the quadrant or radial arm;
c, the carriage; d, the spindles; e, the winding-on drum; and f, the tin
drum for driving the spindles. These and all the other parts requisite
to complete the machine, and which are not described hereafter, are
made as usual. The winding-on drum e is made with a tapering scroll
at one end, as sometimes customary, as shewn at Fig. 3, and the
winding-on chain g after being attached to the smallest diameter of the
scroll is wound around the drum e, then it passes over the bowl in the
slide h, which is connected by V grooves or otherwise to the quadrant
arm b, then under a bowl in the nut i, which fits on the screw of the
quadrant arm as usual, and then the end of the chain is secured to
the slide h. To the slide h is jointed the weighted catch h¹, which takes
into the teeth of the rack j fixed to the upper end of the quadrant arm.
The position of this rack can be varied by the screw j', which is provided
with a square end for a handle. To the fulcrum stud of the quadrant
arm is hinged the lever k, to which is jointed the lower end of the
connecting rod 1, which is jointed above to the catch taking into
the ratchet wheel m, which is mounted on the same stud as the mitre
pinion m¹ gearing into the pinion b² fixed to the upper end of the screw
in the quadrant arm. The catch is jointed to the lever 12 hinged to
the stud of the ratchet wheel m, and the number of teeth in this ratchet
wheel can be changed according to the count of yarn that is being spun.
The catch is made with a stop acting on the lever 1 to prevent the
catch dropping, and to keep it in position ready for being acted upon by
the lever k through the connecting rod 1, when the quadrant arm
vibrates. Near the lever is the swivel stop lever n, to which is jointed
one end of the catch o, the other end of which passes through a bracket
fixed to the floor, and through the arm or lever p fixed to the rocking 3
shaft p'. To this shaft is also fixed the lever på having a double inclined
end, which is acted up by the copping plate q forming part of the
ordinary copping motion.

page_text: The mode of operation is as follows:-On commencing a fresh set of
cops the nut i of the quadrant arm b is near the bottom of the quadrant
arm, and the slide his resting upon the nut, as shewn by dotted lines in
Fig. 1, and at every stretch or whenever the yarn is too tight the screw
of the quadrant arm is turned partly round to raise the nut i and slide h
by the ordinary strapping motion band, shewn by dotted lines in Fig. 1.
These operations continue until the bottom of the cop is completed, at
which time the nut and slide will have arrived near the upper end of
the quadrant arm, and the weighted catch h¹ will have caught in the
teeth of the rack j to prevent the descent of the slide h.
During the formation of the bottom of the cop the catch o is hooked
on its bracket, and the stop lever n is out of the way of the lever k, as
shewn by dots in Fig. 2, consequently the vibrations of the quadrant
arm do not impart any motion to the catch and ratchet wheel m.
As soon as the bottom of the cop is complete the copping plate q,
which is traversed as usual in the direction of the arrow, comes against
and depresses the lever p², thereby raising the lever p and releasing the
catch o, which is then pulled by the spring o³, and brings the stop
lever n into a vertical position, as shewn by the full lines in Fig. 2. The
time for effecting this can be regulated by varying the position of the
lever p² on the shaft p'. When the lever n is vertical each vibration of
the quadrant arm causes the lever k to push up the link and brings the
catch into gear with the ratchet wheel m, which in revolving turns
the screw in the quadrant arm in the reverse direction to that in which
it had been turned by the strapping motion band, thereby causing the
nut i to descend gradually while the slide / remains up, being locked by
the weighted catch h¹ as above described. This descent of the nut i
shortens the winding-on chain and unwinds it off the parallel portion of
the winding-on drum, thereby causing the chain to unwind off the taper
or scroll portion of the drum. By this means a uniformly increasing
velocity is given to the spindles in proportion to the taper thereof, and a
perfectly tight nose is produced on the cop.
Our Invention may be used when the quadrant screw is turned by
land.
Having thus stated the nature of our Invention, and described the
manner of performing the same, we wish to remark that we do not
intend to limit ourselves to the details given, but that we claim, the

page_text: general combination and arrangement of the parts as shewn and described
for winding the yarn on the spindles, and particularly the loose slide h,
which is pushed up the quadrant arm by the nut, and remains up after
the bottom of the cop is completed.
In witness whereof, we, the said John Clegg and Robert Taylor, 5
have hereto set our hands and seals, this Sixth day of August
One thousand eight hundred and seventy-four.
ATTIT AT TA