Improvements in the "Doffing" of Bobbins from their Spindles in Spinning, Twisting, Doubling, and analogous Operations, and in the Means or Apparatus employed therein.
Year: 1893

page_text: Date of Application, 19th Oct., 1893
Complete Specification Left, 17th July, 1894-Accepted, 22nd Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in the "Doffing" of Bobbins from their Spindles in
Spinning, Twisting, Doubling, and analogous Operations, and in
the Means or Apparatus employed therein.
We PERCY CLOUGH and JOHN CLOUGH both of Grove Mills, Keighley, in
the County of York, Spinners and Manufacturers, do hereby declare the nature
of this invention to be as follows:-
The invention relates to the doffing of bobbins from their spindles in spinning,
twisting, doubling and analogous operations and in the means or apparatus
employed.
The object of the invention is by means mainly mechanical to effect the various
operations now performed by the hands of operatives and to perform such operations
with greater speed, uniformity and economy.
The invention is mainly applicable to the various operations named but in order
to simplify description we will particularly describe the invention as applied to a
flyer spinning frame, the various minor modifications requisite to adapt the principle
to the other operations being mainly such as are hereafter indicated.
In front of the frame suitably supported on vertical guides is a support for a
receptacle for the filled bobbins and this support is raised and lowered by suitable
bands chains or similar connections to a rotatory shaft operated by suitable gearing
connected to the driving parts.
This support also carries a holder which may be a corrugated plate or equivalent
means on which are arranged the fresh empty bobbins to replace the full ones and
cutting or dividing means for separating yarns or threads and these parts may be
operated by handles or levers at one end of the machine the whole series of like
parts across the frame being simultaneously operated thereby.
The supporting parts for the empty bobbins are so supported themselves by arms
from a rotatory or partially rotatory axis that on this axis at the proper time being
tilted the empty bobbins can slip off on to the end of the spindles, this slip however
may be controlled by a series of fingers carried by another axis, the removal of
the axis and its fingers releasing the bobbins.
The wire board or guide board is hinged and is turned up out of the way prior
to doffing.
On an axis placed in bearings across the frame and actuated by a handle at one
end is a series of short arms or parts which lie out of the way until doffing is to be
effected when they are turned up each against one arm of a flyer to prevent its
rotation.
At the lower part of each spindle is provided a gear wheel each of which at the
proper time can be engaged by a series of worm wheels mounted on a horizontal
shaft carried by bearings from the framing and actuated from the end.
The operation of the worm wheels is to unwind the spindles from the screw
threads of the flyers or this reversal of the spindles and the subsequent partial
rotations thereto may be otherwise effected: The flyer stops are then turned away
and the flyers being free of the spindle threads are now engaged and lifted by a
series of arms carried on a horizontal axis each arm having grooves in which the
shoulder of its flyer rests.
The axis carrying these arms, is caused to turn and come into operation by
suitable guide ways on the framing, controlling arms projecting from said axis.
The lifter plate is lifted in the ordinary way but is carried high by means of
special rods operated by chains or bands from pulleys on a rotatory axis provided

page_text: for the purpose and the raising of this plate lifts the flyer lifters carrying up the
flyers and at the same time the filled bobbins are also raised free of the spindles
and a plate in rear of these full bobbins, mounted in bearings is by an arm at one
end tilted knocking the series of full bobbins off the lifter plate into the afore-
mentioned partitioned receptacle which has been previously brought down into
proper position for the purpose and each thread or yarn is by the fall of its
bobbin laid in or on inclines adjacent to the recess of the cutting or dividing
means, which is afterwards operated causing severance, and the empty bobbin
supports being tilted they are placed above ready to be allowed to fall onto the
ends of the spindles. The front receptacle also is lowered. The flyers are then
raised and placed on their spindle and the worms being operated the spindles
are turned to engage the screws of the flyers a turn or two of yarn put on the
new bobbins the cutting means operates and the new bobbins begin to be wound,
the worms being engaged and disengaged as required.
The receptacle for full bobbins which rises and falls with the other parts
referred to is only allowed to remain down whilst it is actually in use, it going
up out of the way, by the gearing being operated as at other times.
The removal of the full bobbins into the receptacle may be effected by a series
of parts which engage and cause these bobbins to be thrown or dropped thereinto.
In adapting the invention to a cap or ring spinning frame the gear wheels on
the spindles and the worm wheels and their shafting would not be required the
lifter rail not generally being employed it would not require the extra lifter
means also the flyers lifters would not be employed but the parts for supporting
in readiness and supplying the empty bobbins to the spindles and for receiving
the full bobbins as well as parts for severing the yarns which parts can be moved
clear of the ordinary working of the machine will be readily applied to other
forms of spinning and analogous frames.
Dated the 19th day of October 1893.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents.
COMPLETE SPECIFICATION.
Improvements in the "Doffing" of Bobbins from their Spindles in
Spinning, Twisting, Doubling, and analogous Operations, and in
the Means or Apparatus employed therein.
We PERCY CLOUGH and JOHN CLOUGH both of Grove Mills, Keighley, in
the County of York, Spinners and Manufacturers 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 invention relates to the doffing of bobbins from their spindles, in spinning,
twisting, doubling and analogous operations, and in the means or apparatus
employed.
The object of the invention is by means mainly mechanical to effect the various
operations now performed by the hands of operatives and to perform such operations
with greater speed, uniformity and economy.
This invention is mainly applicable to the various operations named, but in order
to simplify description we will particularly describe the invention as applied to a
Hyer spinning frame.
DESCRIPTION OF THE DRAWINGS.

page_text: Figure 3 is a front view of some of the parts shewn in Fig. 2.
Figure 4 shews by a similar view to Fig. 2, the parts in the position assumed
when "doffing" takes place, the sliding receptacle having been lowered to receive
the full bobbins.
Figure 5 shews by a part front view, and Figure 6 by a side view, the receptacle
for full bobbins, and holder for empty bobbins, with their attached parts, on a
smaller scale than Figs. 2, 3 and 4.
Figure 7 shews by front view, and Figure 8 by side view, both partly in section,
auxiliary sliding supports for the receptacle for full bobbins, disposed at suitable
intervals along the machine.
Figures 9 and 10 shew by front view and side view respectively, the supports for
axis of empty bobbins holder.
Figure 1 shews by a plan view a portion of the series of empty bobbin
holders.
and
Figure 12 shews by a sectional side view an empty bobbin holder upon its axis,
Figure 13 shews the same in the act of tilting the empty bobbin upon the end of
the spindle.
Figure 14 shews by a sectional side view, the gearing at the lower end of the
spindles for winding and unwinding the flyers from the screw threads of the
spindles.
Figure 15 shews the same by a front view, the worm wheels being shewn out of
gear, and
Figure 16 shews a similar view but with the worm wheels in gear.
Figure 17 shews a detail to be described.
Figure 18 shews by plan view the gearing for raising and lowering the sliding
support.
Figure 19 shews by a side view a modified form of the device for placing the
empty bobbins on the spindles.
Figure 20 shews another side view of the same with the empty holders being
lifted.
Figure 21 shews a front view of the empty bobbin holder and
Figure 22 is a similar view with the empty bobbiu released so as to drop on to
the spindle.
In front of the frame, suitably supported on vertical guides a, is a support,
for a receptacle 6' for the filled bcbbins, and this support, with the receptacle,
is raised and lowered by suitable chains 62 passing over pulleys 63 upon a rotatory
shaft carried by suitable arms A from the framing A³. At one end of
the frame, the shaft 6 has mounted on it a worm wheel c which engages with
the worm upon the spindle carried by the member ³ upon the arm A.
At the lower end of the spindle c³, as best shewn in Fig. 18, is provided
bevelled gear wheels c, e operated by a hand wheel c³, also carried by the
member c³.
By these means the chains may be wound upon or unwound from the pulleys 6³
thus raising or lowering the receptacle 6' with its attached parts.
The supports b are provided with anti-friction rollers 666 bearing upon the
vertical guides a. The length of the chains 62 may be adjusted by means of
suitable bolts 6 and nuts '.
The receptacle b' for the filled bobbins carries a blade or part 68 having a series
of notches or slits into which the thread or yarn is laid by the fall of its bobbin
into the receptacle. Adjacent to this part 68 is another strip or blade 6º provided
with a series of cutters 610, 610, and having a handle 6" at one end of the machine,
the whole series of threads across the frame being simultaneously severed thereby.
The movement of the blade 6 is controlled by suitable stops, and anti-friction
rollers 6 are provided at suitable distances apart, see Fig. 6, the handle 6" being
removed in this fig. for the sake of clearness.
The support 6 also carries an axis d having capability of rotating within certain

page_text: limits which axis is also supported by auxiliary arms d' at suitable distances apart
carried by the receptacle see Figs. 9 and 10. This axis d is provided with arms d²
which carry a series of holders d³, d³ for the empty bobbins which are to replace
the full ones.
The handle d, at one end of the frame, is carried by the axis d, and enables the
the whole series of empty bobbin holders across the frame to be capsized
simultaneously.
The support and its attached parts having been lowered, so that the empty
bobbins are at a suitable position nearly opposite the upper end of the spindles the
handle d, when required is pushed over in the direction shewn by the arrow Fig. 1
thus turning the axis d with its arms and thereby tilting the holders d³ so as to
place the empty bobbins upon the spindles.
A catch part d holds the parts in upright position and a similar catch at the
opposite end of the machine prevents the holders d³ from being overturned
too far.
Instead of the foregoing means for holding or carrying the empty bobbins, the
following modification may be used:-
The rotatory or partially rotatory axis d has mounted on it a series of fingers d',
each finger being supplied with an empty bobbin. These fingers are provided
with a rod or bar d' with capability of sliding longitudinally across the frame,
and having a series of pins de mounted on it. When the empty bobbins have
been placed upon the fingers d they are held thereon by means of the pins d
which are slidden across the end thereof, as shewn in Figs. 19 and 21.
the axis d has been partially rotated by means of the handle d', so as to place the
fresh empty bobbins immediately above the spindles, the pins ds are all moved
simultaneously from beneath the bobbins thereby releasing them as shewn in
Fig. 22.
When
In some cases we employ finger-bobbin-setters d to carry the empty bobbins-
dispensing with the rod d' and the releasing pins or pegs d-in which case we
arrange that a quick turning movement be given to the axis d, on which the
fingers d are mounted, whereby these fingers being tilted or inverted are caused to
be arranged vertically over the spindles before the empty bobbins have had time to
slide down their respective fingers.
The empty bobbins slide down and slip onto the spindles directly after their
supports become tilted into their new position or inverted and correctly positioned.
The wire board or guide board e is hinged at e¹ from a part 2 carried by the
framing, and is turned up out of the way prior to doffing, see Fig. 4.
On an axis placed in bearings f' across the frame, and actuated by a handle at
one end, is a series of short arms or parts f2 which lie out of the way (see full lines
Fig. 2) until doffing is to be effected; when they are turned up each against one
arm of a flyer to prevent its rotation see dotted position Fig. 2.
At the lower part of each spindle y is provided a gear wheel g' each of which
at the proper time can be engaged by one of a series of worm wheels g² mounted
on a horizontal shaft g³, carried by bearings from the framing and actuated from
the end, by the hand wheel g₁, Fig. 1.
The operation of the worm wheels 92 is to unwind the spindles g from the screw
threads of the flyers go, or this reversal of the spindles and the subsequent
partial rotations thereto may be otherwise effected. When the worm wheels g²
have been pulled out of gear, see Fig. 15, a latch 96, bearing upon the collar g',
of the shaft g³, holds said worm wheels free from the gear wheels g', and the same
latch 9 serves to hold these wheels in gear when moved into the position shewn
in Fig. 16.
6
The flyers g having been unscrewed, the parts f2 are turned away and the flyers
being free of the spindle threads, are now engaged and lifted by a series of arms /
which have grooves in which the shoulder of the flyer rests. The arms h are
carried on a horizontal axis h¹ which is supported by bearings * on the special
lifter rods j.

page_text: The axis carrying these arms h, is caused to turn and come into operation by
suitable guideways on the framing controlling arms h projecting from said
axis . The lifter plate is lifted in the ordinary way during spinning but for
doffing is carried high by means of special rods joperated by chains or bands j¹
from pulleys on a rotatory axis provided for the purpose; and having a
hand wheel and ratchet wheel with catches or pawls j thereby holding the
parts in the required position. When the special lifter rods are raised as
described; not only the flyer lifters but also the lifter bar are thereby
raised; the flyer lifters h carrying the flyers 0 clear of the spindles and the
lifter bar i carrying the full bobbins almost to the top of the spindles g. A plate
or bar k, hinged at k', upon the parts k² carried by the axis ¹ is by an arm at
one end, tilted, knocking over the series of full bobbins off the lifter plate i into
the aforementioned receptacle which has previously been brought down into
proper position for the purpose.
When a series of bobbins have become full, the operation of "doffing" may be
performed as follows:-
--
The machine having been stopped the sliding support b, with its attached.
parts, is lowered by the means described until the pointer or finger a' reaches
a suitably marked position which may be indicated on the vertical guides a by the
word "doff."
The knife is then pulled out and the wire board e is raised by a handle at one
end of the frame. The flyer stoppers or parts f2 are raised up against the flyers,
and the worm wheels 92 pushed into gear which being turned in the direction
opposite to spinning cause the flyers to be unscrewed free of the screw threads of
the spindles.
The parts may then be lowered again, and by means of the hand wheel j' and
rods ; the lifter plate with the full bobbins is raised until said bobbins are clear of
the spindles, and by the same means the parts are raised at the same time,.
carrying up the flyers. The bobbins are then knocked over, and the support b..
with receptacle 6', is lowered to position marked "set."
The lifter plate having been then lowered, by the rods j, so that the spindles
extend a suitable distance, say one and a half inches above it, the holders are
tilted and the fresh empty bobbins placed on the spindles.
The receptacle 61 and its attachments are then raised to the position marked
cut," and the flyers are lowered on to the ends of the spindles by means of the
rods j, and the lifter board is lowered at the same time.
After lowering the wire boards, the flyers are screwed onto the spindles by
means of the worm wheels g² which at the same time wind upon the empty bobbins
a few turns of yarn or thread.
The severance of the threads then takes place and the worm wheels are pulled
out of gear the receptacle and its attachments are taken up out of the way and
the machine is restarted.
The flyers are caused to clear the spindles during descent, in the modification
shown in Figs. 19 to 22 by having the groove curved as shewn the part h³
lifting the device he during ascent but being guided over it during descent from
the highest position.
The flyers can be placed upon the spindles by the former being raised so high
that the part does not quite pass the device, as shewn in upper dotted position,
Fig. 19, and then lowered directly, after first raising the catch.
The receptacle for full bobbins, which rises and falls with the other parts
referred to, is only allowed to remain down whilst it is actually in use, it going
up out of the way, by the gearing being operated as at other times.
The removal of the full .bobbins into the receptacle may be effected by a
scries of parts which engage and cause these bobbins to be thrown or dropped
thereinto.
The parts for supporting in readiness and supplying the empty bobbins to the
indles and for receiving the full bobbins as well as parts for severing the yarns

page_text: which parts can be moved clear of the ordinary working of the machine will be
readily applied to other forms of spinning, twisting and winding machinery.
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 herein described improvements in “doffing" full bobbins and the supply
of empty ones in spinning and analogous operations by means or apparatus
capable of being brought into position for operation in front of the ordinary
parts of the machine during the "doffing" operation and capable of being removed
out of the way of the operator during the ordinary operation of spinning, twisting,
doubling or other analogous work, substantially as set forth and shewn by the
drawings.
"
2. The combination or arrangement and use of parts of mechanism for
effecting the "doffing of spinning, twisting, doubling, or analogous machinery,
having the front devices capable of sliding verticaly into and out of operative position
in front of the frame by means of adjustable supports and guides substantially as
set forth.
3. The construction and arrangement of parts of mechanism for lifting and
replacing the flyers or equivalent parts during "doffing" on spinning and analogous
frames, substantially as set forth.
4. The construction and arrangement of parts of mechanism for effecting the
lifting of the flyers and knocking off of the full bobbins into their receptacles
substantially as set forth.
5. The construction and arrangement of the parts for effecting the stopping of
the flyers in correct relative positions during the "doffing" operation in spinning
and analogous frames substantially as set forth.
6. The constructions and arrangements of parts of apparatus for supporting
and transferring empty bobbins or foundations for the windings to replace the
full bobbins so as to co-operate substantially as and for the purposes hereinbefore
set forth.
7. The construction arrangement and combination of parts for holding the flyer
portions of the frame in position, raising the same and lowering them during the
doffing," removing and disconnecting the full bobbins, replacing them by empty
bobbins; connecting or winding on the yarns to the empty bobbins and severing
from the full bobbins, rearranging the frame parts in working order and removing
the front "doffing" devices out of the way, all substantially as and for the
purpose set forth.
Dated the 16th day of July 1804
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicants.