Improvements in or relating to the Operation of "Doffing" by Mechanical Means the Full Bobbins, in Flyer-spinning, Twisting, Doubling, and Analogous Operations.
Year: 1898

page_text: Date of Application, 16th Nov., 1898
Complete Specification Left, 10th Aug., 1899-Accepted, 16th Nov., 1899
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Operation of "Doffing" by
Mechanical Means the Full Bobbins, in Flyer-spinning, Twisting,
Doubling, and Analogous Operations.
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:-
This invention has reference to improvements in and relating to the operation
of doffing by mechanical means the full bobbins in flyer spinning, twisting,
doubling and analogous operations.
In the operation of doining by mechanical means as described in the Specifica-
tion of an Application for Letters Patent by the present applicants No. 19,084
bearing date the 18th day of August 1897, some of the threads wriggle out of
or escape from the flyer twizzle. These threads have to be set right before the
machine is restarted, causing a serious loss of time.
In order to prevent this, a tuft or piece of fur, pile fabric, bristles, or other
similar or suitable material is brought up against each flyer twizzle, and is caused
to remain there during the doffing operation.
The result is that the threads remain in their proper places, and do not need
to be examined and set right before the machine is restarted.
The following further advantages result from this application:-
1st. The flyers can be moved during doffing into positions which allow of the
shortening of the parts which lift the flyers and thus enabling them to be made
lighter.
" to
2nd. The possibility of thus moving the flyers allows the "bobbin setters
be fixed above the flyer lifters, and in such case a bobbin, setter which needs no
adjustment for different sizes of bobbins, and which may be of the simplest type
possible, can be used.
Such a construction of bobbin setter as we contemplate employing is shown in
the Specification of Letters Patent granted to the present applicants dated the
7th day of December 1893, No. 23,583, or a bobbin setter of substantially similar
character may be employed, but such bobbin setter separately considered does
not form part of the present invention.

page_text: Improvements in or relating to the Operation of "Doffing" by
Mechanical Means the Full Bobbins, in Flyer-spinning, Twisting.
Doubling and Analogous Operations.
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:-
-
This invention has reference to certain improvements in means or apparatus
for facilitating the operation of doffing the filled bobbins and supplying their
places with empty ones in spinning, twisting and similar machinery of the
character described in the Specification of Patent granted to the present appli-
cants and bearing date December 7th 1893 No. 23,583, by substituting means
mainly mechanical and capable at once of actuating a whole side of a machine
for the present hand operation upon single bobbins and to secure increase of
speed, uniformity and economy in the operation.
In the operation of doffing by mechanical means as described in the Specifica-
tion of Letters Patent granted to the present applicants No. 19,084 and dated
the 18th day of August 1897, some of the threads wriggle out of or escape from
the flyer twizzle.
These threads have to be set right before the machine is restarted, causing a
serious loss of time.
In order to prevent this, a tuft or piece of fur, pile fabric, bristles or other
similar or suitable material is brought up against each flyer twizzle, and is caused
to remain there during the doffing operation.
The result is that the threads remain in their proper places, and do not need
to be examined and set right before the machine is restarted.
The following further advantages result from this application:-
1st. The flyers can be moved during doffing into positions which allow of the
shortening of the parts which lift the flyers and thus enabling them to be made
lighter.
37 to
2nd. The possibility of thus moving the flyers allows the "bobbin setters'
be fixed above the flyer lifters, and in such case a bobbin setter which needs no
adjustment for different sizes of bobbins, and which may be of the simplest type
possible can be used.
Such a construction of bobbin setter as we contemplate employing is shown in
the Specification of Letters Patent granted to the present applicants dated the
7th day of December 1893, No. 23,583, or a bobbin setter of substantially similar
character may be employed, but such bobbin setter separately considered does
not form part of the present invention.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows by a side view part of a flyer spinning frame having our present
invention applied to it.
The positions are those taken during spinning.
Figure 2 shows by a side view some of the doffing parts in positions taken
during doffing as seen at the end bracket of the sliding receptacle.
Figure 3 shows by a partial front view the sliding receptacle and its attached
parts.
Figure 4 shows by a side view an intermediate bracket of the sliding receptacle
with some of the attached parts.

page_text: Figure 5 shows by a side view some of the doffing parts in other positions
taken during doffing, as seen at the end bracket of the sliding receptacle.
Figure 6 shows a front view and
Figure 7 a side view of the support for the flyer lifting parts.
Figure 8 shows a side view of the finger for holding the empty bobbins and
Figure 9 shows a plan of the same.
Figures 10 and 11 show respectively a front view and side view of the outter
for severing the threads.
Figures 12, 13 and 14 show respectively a side view, plan and front view of
the angle plate for carrying the brush which encloses the flyer twizzle.
Figure 15 shows the pins for lifting the flyers.
Figure 16 shows a plan of the holder for enclosing the bosses of the flyers.
Figure 17 shows 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 18 shows the same by a front view, the worm wheels being shown out
of gear and Figure 19 shows a similar view but with the worm wheels in gear.
Figure 20 shows a latch for maintaining the position of the worm shaft
endway.
Figure 21 shows by a front view special apparatus for raising and lowering
the lifter plate when doffing is to take place
The wire boards are hinged at and can all be turned up out of the way at
once, as may be required during the operation of doffing, by means of a flat
bar extending the whole length of the wire boards. In the operation of the
apparatus for performance of doffing, the flyers are all brought into line by
suitable means such as follows.
On an axis 18 placed in bearings across the frame and actuated by a handle
at the end is a series of arms which lie out of the way until doffing is to be
effected when they are turned up cach against one leg of a flyer to prevent its
rotation, see position shown by broken lines Figure 2.
At the lower part of each spindle g is provided a gear wheel g¹, each of which
at the proper time can be engaged by one of a series of worms mounted on
a horizontal shaft 93 carried by bearings from the framing and actuated from
the end by a hand-wheel g (Figure 1). The operation of the worm wheels 9ª
is to unwind the spindles g from the screw threads of the flyers (see enlarged
views Figs. 2 & 5). When the worm wheels have been pulled out of gear
(Figure 18) a latch ge bearing upon the collar g of the shaft g3 holds said worm
wheels free from the gear wheels gl and the same latch serves to hold these
wheels in gear when moved into the position shown in Figure 19.
The flyers (Fig. 2 & 5) having been unscrewed the stoppers are turned away
and the flyers being free of the spindle screw threads are now engaged and lifted
by a series of arms h, h¹ (Figures and 5) the upper arms having holes h³
(Figure 16) for receiving the necks of the flyers and the lower arms h¹ (Figure 15)
consisting of pegs so placed as to pass the spindle and come underneath the
shoulders of the flyers. These arms are fastened to flat bars A and h³ (in the case
of h by screws and in the case of h¹ by being driven tightly in) extending along
the whole length of the receptacle.
The upper bar ³ is hinged at 16 to the bracket d and the lower bar h³ is
fastened to shaped supports d from bracket d (Figures 4, 5, 6 and 7) carried
by brackets or sliding supports e and c (Figures 4 and 5) at the ends of and
at suitable distances along the receptacle 6. The supports d can partly rotate
on axis d³ so as to bring the flyer lifters h and h¹ nearer to or further from the
spindles. The upper bar h is provided with a handle to enable it to be turned as
required.
The bracket d is adjustable vertically. The screw & comes against the bracket o
and prevents bracket d from coming too far forward when lifting the flyers.
Fastened to bar A³ carried by bracket d is a series of arms or parts (one for

page_text: J
each spindle and placed opposite the spaces between the spindles) carrying
brushes, long pile fabric, fur, or similar material, in such a position that
when the flyer lifters are holding the flyers, each brush completely covers the
twizzles of two adjacent flyers. This prevents the threads from escaping "from
the twizzles and allows the flyers to be moved backward during doffing in
which case the new bobbins can be thrown on to the spindles over the top of the
flyer lifter.
•
&
"In front of the frame suitably supported on vertical guides a, are supports cl
for a receptacle for the filled bobbins, and this support with the receptacle
may be raised and lowered by suitable chains 6 passing over pulleys & upon
retatory shaft carried by suitable arms a¹ from the framing a². This receptacle
with its attached parts balanced by weights acting on a similar pulley at one
'end.
C
No worm and wheel gear is necessary for moving the receptacle up and' down,
as it can be done directly by hand. The receptacle is guided up and down the
vertical supports a by means of lugs or projections (Fig. 5) attached to
brackets 'c and c¹.
The chains which carry it are adjustable.
The loose bottom 6 is guided and kept in position by shoes or parts fastened
to the bottom which clasp vertical guides a. The supports and c¹ have bear-
ings which carry a rotatory axis m carrying at proper distances pulleys m² pro-
vided with chains m³ which support by nuts and screws the bottom of the
receptacle b¹.
By causing the pulleys m¹ to rotate, the loose bottom 6 can be made to take
either of the two positions shown in Figs. 2 and 5 or any position intermediate,
the position being maintained by catch wheel m* and catch m³. The loose
bottom 6 is provided with shoes or guiding parts m³ (Fig. 2) fastened to it which
slide along vertical guides a
The receptacle carries a blade or part extending the whole length of the
frame (Fig. 3) 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 is a
bar f carrying a series of looped cutting blades f which span the part f. The
bar rests on the bracket c and can be drawn backwards and forwards in the
direction lengthway of the frame by means of handle f³ (Fig. 3). The cutters f
meet the threads at right angles and sever them all at one stroke. The lifter
plate is caused to traverse by the ordinary means during spinning, but for
doffing is carried high by means of special apparatus shown in Fig. 21.
rotatory axis is provided and is operated by a hand wheel it at the end of
the machine as shown in Fig. 1. The cutting apparatus may be and is substan-
tially the same as that which was described in the said Specification No. 19,084
of 1897.
A
Upon the axis is a pulley operating a chain or band j' passing round a
guiding pulley carried by a support from the framing a².
The lower end of this chain ¹ is connected with the ordinary sliding bars
by lugs 10.
The sliding motion given to the bar by these parts is transmitted to the
lifter plate in the usual way. When desired apparatus commonly known as
Scaifes' lifter motion" (characterized by its embodying a revolving tappet or
heart which by means of levers, rod chains, connecting rods and lifter spindles
causes the lifter bar to rise and fall,) is employed. A pulley mounted on the
same axis carries a counter weight for balancing the weight of the lifter plate
etcetera, and a ratchet wheel j³ and a catch jº (Fig. 1) serves to hold the parts in
position.
The lifter bar is carried by lifter spindles such as are commonly used for the
purpose in the ordinary spinning operation. These lifter spindles may be slightly
tapered where they pass through the lifter bar to facilitate the tilting of the
lifter bar as described below. To remove the full bobbins from the lifter plate
or bar into the receptacle the bar may be tilted by pressing the flyer stoppers ?

page_text: upwards against the bar (Fig. 2) when owing to the inclination of the bar the
bobbins will fall into the receptacle 6. The fresh supply of empty bobbins to
replace these full ones is arranged (Fig. 2) upon a series of pegs attached by
screws to a flat bar el extending along the receptacle, rounded where it rests
in bearings of support e (Figure 4). The bar e¹ can partially rotate in
bearings e. At the proper time the pegs are all overturned, by means of a handle
into the position shown in Fig. 5 when the bobbins slide down the pegs onto the
spindles.
When a series of bobbins has become full, the operation of doffing may be
performed as follows:-
The machines having been stopped, the sliding receptacle 61 with its attached
parts is lowered to a point where by causing supports d to move on their axis
towards the frame the pegs or arms h¹ will come under the shoulders of the
flyers (Fig. 4). The wire boards are raised simultaneously.
The flyers are unscrewed. The supports d are turned towards the frame so
that arma h¹ pass under the shoulders of the flyers, and the brush k¹ encloses
the twizzle of the flyer.
When arms are far enough forward the regulating screws come against
bracket and check the forward movement (Fig. 4). The bar h³ previously
turned so that arms & pointed upwards is now turned on its hinges by means
of a handle (Fig. 3) until the arms enclose the bosses of the flyers. The
sliding motion is then reversed and the parts lifted carrying the flyers up to
a height at which the full bobbin can come off and the empty bobbin go on.
Before this is possible, supports must be moved backwards into position shown
in Fig. 2. This would cause many threads to escape from the flyer twizzles if
there were no brushes. At the same time as these parts are raised, the lifter
plate with the full bobbins is also raised until said bobbins are nearly clear of
the spindles by means described in Specification dated Dec. 7th 1893 No. 23,583.
Meanwhile the loose bottom of the receptacle has been close up to 6¹ held
there by catch wheel m' and catch m³. The full bobbins are then tilted over in
the manner described and fall upon 62. The lifter bar is then lowered. The
false bottom 68 is now lowered by means of shaft pulleys and chains m, m¹
and m (Fig. 5) until it reaches checks or lugs fastened to vertical guides a.
The thread is thus lengthened in the easiest possible manner. The receptacle 7¹
is now lowered (6* remaining stationary) carrying with it the fivers until the
point is reached at which the pegs a can be overturned upon the spindles
(Fig. 5). Pegs e are now overturned onto the spindles and then turned back
from the spindles. d is now turned towards the spindles. Receptacle b¹ is
lowered (6 still remaining stationary) until the flyers are on the spindles.
Bar is turned un out of the way The recentacle is now lowered a little
nntil can he withdrawn from the spindles. The wire boards are lowered.
The lifter plate and saw cut blade of receptacle are put into position for
winding thread onto the empty bobbins. The thread is wound on by means
such as described in Specification of Letters Patent dated December 7th, 1893
No. 23.583.
The thread in this operation falls into the notches of blade f. When thread
enough has been wound upon the empty bobbins, the bar fl carrying cutters f
is quickly drawn along blade cutting the threads which are lying tightly
between the flyers and the full bobbins in 6º.
The loose bottom 68 is now drawn up to and the whole raised up above the
spinner's head. The lifter motion is set for spinning, the worms taken out of
gear and the machine restarted.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that
what we claim is:-
1. The construction and arrangement of the shortened flyer lifting apparatus,
simplified bobbin setter mechanism,-not requiring adjustment for different

page_text: sizes of bobbins-in combination with brush devices for preventing threads, or
ends escaping, all substantially as and for the purpose set forth.
2. In means or apparatus for facilitating the operation of "doffing" full bob-
bins in flyer spinning, twisting, doubling and analogous operations, the com
bination with the mechanism for performing "doffing" of a series of tufts, pile
surfaces, bristles, brushes or equivalent means adapted to prevent threads or
ends from escaping during doffing, substantially as set forth.
LHC
ayugu
WM. BROOKES & SON,
55/56, Chancery Lane, London, Agents for the Applicants. 1