Improvements in Means or Apparatus for Facilitating the Doffing of Bobbins in Spinning, Twisting, Doubling, and Machinery.
Year: 1897

page_text: similar
Improvements in Means or Apparatus for Facilitating the Doffing
of Bobbins in Spinning, Twisting, Doubling, and
Machinery.
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 relates to certain modifications or improvements upon the method
of mechanical doffing described in Specification of Letters Patent No. 23,583 dated
December 7th, A.D. 1893, particularly in respect of the following mechanism.
1st. An improved means or apparatus for removing and replacing the flyers.
2nd. An improved apparatus for putting on the empty bobbins.
3rd. An improved cutting apparatus.
4th. An improvement in the sliding receptacle to prevent the threads being broken
and to prevent their escaping from the twizzle of the flyers.
1st. The apparatus for removing and replacing the flyers consists of a series of arms
to be caused to pass underneath the shoulder of the flyer, and a series of rings for
enclosing the head of the flyer, mounted on two parallel flat bars one above the
other and adjustable in directions towards and from the spindles. These flat bars
extend the length of the frame and are mounted on supports carried by and adjust-
able upon a horizontal axis which can be partially rotated to bring the bars towards or
from the spindles this axis is carried by the sliding support. The upper flat bar is
hinged to the support and can be turned upon its hinges so as to come upon or off
the flyers. This arrangement serves to keep its position better, is more easily
adjusted and cheaper in construction than the method described in the said Specifi-
cation of Patent No. 23583.
2nd. The empty bobbins are held in partly complete wire rings which can spring
open to receive the barrel of the bobbin, but close again to such a diameter that the
bobbin cannot fall out. These are mounted and are adjustable upon a flat bar,
extending in front of the frame, hinged to brackets carried by the sliding
support and the bar can be turned on its hinges so as to place the bobbins onto
the spindles.
These bobbin setters are not liable to injure the bobbins and are more cheaply
and more easily adjustable than those described in the said Specification of Patent
No. 23583.
3rd. The notched bar is retained for the thread to lie in, but the knife blade is
looped and cuts on both sides of the notched blade. This is more certain in cutting
and does not need sharpening.
4th. The bottom of the sliding receptacle is loose and can be lowered and
raised by rods actuated by chains and pullies upon a rotatory shaft carried by the
alidin acentasle

page_text: During the operation of doffing as described in the Specification of the said Patent
No. 23583, when the flyers have been raised, the full bobbins tilted into the
receptacle, and the empty bobbins put on the spindles, the flyers are then lowered
onto the spindles by lowering the receptacle which carries them; this operation
necessarily lowers the full bobbins lying in the receptacle. During this operation
many threads are broken because the thread has to resist the drag of the "wiring"
round the flyer leg, combined with the drag of the full bobbin in the box.
This combined drag often tends to break the finer yarns.
According to our improved new method, as soon as the empty bobbins are put on
the spindles, the loose bottom is lowered, carrying the full bobbins with it to a point
where it stays; during this operation the thread has only the drag of the bobbin to
resist which will not break it. Then the receptacle is lowered carrying the flyers
down onto the spindles; during this operation the thread has only to resist the drag
of the wiring round the flyer leg which will not break it.
In the method already referred to in the Specification of Patent No. 23583, when
the receptacle is raised to wind the thread onto the empty bobbins the thread is
caused to go slack and this slackness causes it to escape from the flyer twizzle; in
the present improved method this does not happen because the full bobbins,
being independent of the receptacle's motion are not moved and cause no slackness
of the thread.
Dated the 19th do
1007
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicants.
Improvements in Means or Apparatus for Facilitating the Doffing
of Bobbins in Spinning, Twisting, Doubling, and similar
Machinery.
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 us dated December 7th 1893
No. 23583, 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.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows by a side view part of a flyer spinning frame having the invention
applied thereto. The vertical guides a, receptacle 6' the sliding supports 66 and some
of the attached parts being shown, such as the support d for the flyer lifters, the
handle d for turning the bobbin setter bar, and the handle ke for moving up and
down the loose bottom of b¹.
Figure 2 shews by a side view partly in section some of the parts in the position
they occupy during spinning, drawn to a larger scale than Fig. 1.

page_text: e is the wire board hinged at el to bracket e² fastened to framing a¹, es is the bar
which lifts all the wire boards at once. f2 represents one of a series of flyer stoppers
mounted on axis f, having bearings f¹; g5 is a flyer, the lifter bar, g the spindle.
Fig. 3 shews by a like view to Fig. 2 the same parts and others in their relative
position as when deffing takes place. 66 are projections from the part be which
projections serve to maintain the position of 66 on the vertical guides a; k is a
handle fastened to the axis, on which are mounted pulleys which support by
means of chains and rods the loose bottom of the receptacle b¹.
The catch maintains in position the axis 5 by means of a catch wheel k mounted
on k; h³ and h³ are bars carried by the support d and they carry arins h and h¹ for
lifting the flyers; h is the hinge on which he can partially rotate; the support d
can partially rotate on the axis h and its position is maintained by the adjusting
screw h; 8 is the notched bar for the threads to fall into; 6º the bar carrying the
knives 610 for cutting the threads; d the handle for operating the bar d² hinged to
6 at ds; d2 carries the bobbin setters.
Figure 4 shows a series of flyer stoppers f2 and their coupling f.
Figure 5 shows by a side view the apparatus for lifting up the flyers, the holders d¹
by means of which the empty bobbins are supplied and the cutting apparatus as
seen at an intermediate bracket.
Fig. 6 shows a plan view of part of the top and bottom bars for lifting up the
flyers in the position they occupy when lifting.
Figure 7 shows a plan of part of the lower bar carrying arms or pegs for lifting
the flyers.
Figure 8 shows a series of holders for empty bobbins attached to the bar d².
Figure 9 shows separately the arms or pegs which are carried by the bar in
Fig. 7.
Figure 10 shows by a side view the bar which carries the knives for cutting the
threads, with a knife attached.
Figure 11 shows a plan of a steel stamping which holds the bobbin setters more
and less, open where they support the bobbin.
Figure 12 shows by a partial front view the sliding support and attached parts.
is a pulley carrying a chain and rod which supports the loose bottom k¹ of the
receptacle, by means of the nuts k².
Figure 13, shows by a side view, at an intermediate bracket the sliding support
and attached parts.
Figure 14 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.
Fig. 15 shows the same by a front view, the worm wheels being shown out of
gear, and
Figure 16 shows a similar view but with the worm wheels in gear.
Figure 17 shows by a side view the catch for keeping the worm shaft in
position.
Figure 18 shows by a front view the apparatus for raising and lowering the lifter
bar when doffing is to take place.
These mechanisms shewn by Figs. 14-18 are the same as those indicated by
Figs. 17-21 of our said former specification and separately considered they form no
part of our present invention, but for convenience of reference we insert the following
explanations from our prior Specifications of Patents Nos. 19679 Oct. 19th 1893 and
23583 aforesaid.
À is one of a series of arms from the framing A¹. 62 are raising and lowering
chains, passing over pulleys 63 on shaft b*. c is a worm wheel on the axis shaft b
c is one of two bevelled gears
engaging worm con spindle c² carried by part c³.
operated by hand wheel co. g¹ a gear on said spindle g engaged by worm wheel g²
on shaft g³. g' is a hand wheel to actuate g³. g³ are flyers. g is a latch bearing
on the collar g' of shaft gs to hold the worm wheel in position as more fully described
in said prior specifications,

page_text: jare rods operated by bands j¹, j2 pulleys therefor, axis for said pulleys, hand
wheel on 3. ratchet wheel and 7 pawls to hold parts in position, 77 is a guide
pulley, support therefor, 1 is a sliding bar to which chain j' is connected by
lug jio
The wire boards or guide boards e are hinged at e¹ 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 bare running the whole length of the wire boards, which is hinged to the same
bracket e2 as the wire boards or otherwise.
In the present apparatus for the performance of the operation of doffing the flyers
may all be brought into line by suitable stoppers f2 as described in our prior
Complete Specification aforesaid, the like letters that in the said former specification
were employed for indicating like parts are so employed in the present description.
At the lower end of each spindle is provided gearing which may be operated sub-
stantially in the manner described in the aforesaid prior specification. The flyers g
having been unscrewed the stoppers f² are turned away and the flyers being free of
the spindle screw threads are now engaged and lifted by a series of horizontal
arms h,, (Fig. 3) the upper arms having holes 2 (see Fig. 6) for receiving the
necks of the flyers, and the lower arms h¹ (see Fig. 7) being so distributed as to pass
the spindles and bobbins so as to come underneath the shoulders of the flyers. The
upper arms and lower arms are mounted upon two flat bars extending along the
whole length of the receptacle. The upper bar h³ is hinged to and the lower bar h³
is screwed to L shaped supports d (Fig. 3) mounted on an axis h which is carried by
bearings in brackets or sliding supports 66 at the ends of, and at suitable distances
along the receptacle 6¹. The supports d can partially rotate on axis h so as to
bring h and h¹ nearer to or further from the spindles.
The regulating screw he is so set as to come against bracket 66 when h and h¹ are
in correct position. The upper har h³ is provided with a handle to enable the arms h
to be turned as required.
In front of the frame, suitably supported on vertical guides a are supports 66 for a
receptacle b (Fig. 3) for the filled bobbins and this receptacle may be raised and
lowered by suitable gearing as described in the aforesaid prior specification. The
supports have bearings which carry a rotatory axis carrying at proper distances
pulleys provided with chains and rods which support by nuts ² the bottom kl
of the receptacle b₁ (Fig. 13). By turning the handle and causing to rotate
pulleys the loose bottom k¹ can be made to take either of the two positions shewn
in Figs. 3 and 13 or any position intermediate hetween them the position being
maintained by a catch and catch wheel k².
The means provided for the severance of the threads may also be substantially
similar to those described in Specification No. 19769 of 1893 except that the cutting
blades are made of narrow strips of steel 610 (Figs. 3, 10, and 12), shaped like an
inverted U, which are attached to bars 6º and which cut on both sides of the notched
bar 68 (Figs. 5 and 12).
The raising and lowering of the lifter bar may be substantially the same as described
in the aforesaid prior specification.
The lifter bar i 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 bar into the receptacle the lifter bar
may be tilted upon the lifter spindles by pressing the flyer stoppers 2 upwards
against the lifter bar i (Figure 3), when owing to the inclination of the bar the
bobbins will fall into receptacle 61. The fresh supply of empty bobbins to replace
these full ones is arranged (as shewn in dotted lines Fig. 5) upon a series of holders d¹
carried by flat bars d along the front of the spinning frame. These bars are hinged
at suitable distances to the brackets 60 (Figs. 5, 3 and 13). These holders may be
made of wire so as to spring open to receive many sizes of bobbins. These holders

page_text: can be held in any of 3 positions by the steel stamping d' (Fig. 11) which is so
shaped that it can enclose the holders and can be turned round upon them so as
to hold the two legs apart in 3 separate positions as shewn in Fig. 8. At the
appropriate time the holders are overturned, by means of a handle, into the full line
position (Fig. 5) thereby capsizing the empty bobbins on to the ends of the spindles.
When a series of bobbins have become full the operation of doffing may be per-
formed as follows. The machine having been stopped, the sliding support 60 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 would come under the shoulders of
the flyers (Fig. 3). The wireboards e are raised by a handle at one end of the frame.
The flyers are unscrewed from their spindles as described in Specification No. 23583
of 1893. The supports d are then turned towards the frame so that arms h¹ pass
under the shoulders of the flyers.
When arms h¹ are far enough forward, regulating screws he come against bracket 66
and check the motion forward (Fig. 3). The bar h³, previously turned so that arms h
pointed upward, is now turned on its hinges by means of handle h³ (Fig. 12) until
the arms enclose the bosses of the flyers (Fig. 3). The sliding motion is reversed
and the parts lifted carrying the flyers to a height at which the full bobbin can come
off and the empty bobbin go on in its place (Fig 3).
At the same time as these parts are raised, the lifter plate with the full bobbins is
raised, until said bobbins are nearly clear of the spindles, by means described in
Specification No. 23583 of 1893. Meanwhile the loose-bottom k¹ of receptacle b¹ has
been close up to be held there by catch and catch wheel (Fig. 3). The full
bobbins are then tilted over in the manner described and they fall upon k¹. The
lifter plate is then lowered and the holders carrying the empty bobbins are over-
turned so that the bobbins slide down onto the spindles (Fig. 13). The holders are
then returned to the position shewn in dotted lines (Fig. 5) is then lowered
(independently of the receptacle) by means of the pulleys, chains and rods already
described, until it reaches projections on upright guides a. The receptacle and its
attachments are then lowered until the flyers are on the tops of the spindles. The
upper arms are turned up off the flyers. The receptacle is then lowered to a
suitable position for winding on, and the supports d are turned back from the frame
leaving arms clear of the flyers. While receptacle b¹ has been lowered to put on
the flyers, loose bottom has remained stationary on the projections of vertical
guides a.
According to the method described in our aforesaid prior specification the full
bobbins were carried down at the same time as the flyers and this broke many of the
threads; whilst according to our present improved method this fault is almost
entirely obviated. After lowering the wire boards the flyers are screwed on to the
spindles and the yarn is wound onto the empty bobbins as described in our aforesaid
prior specification.
The threads are then cut, the worm wheels taken out of gear, the receptacle and
loose bottom are together taken up out of the way and the machine restarted.
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 :-
In spinning, twisting and similar machinery :-
1. The improved construction and arrangement of parts of mechanism for lowering
and raising the full bobbins (after they have been removed from the lifter bar)
independently of the movement of the flyers, in mechanical doffing, thereby preventing
threads from breaking, substantially as set forth.
2. The improved construction and arrangement of parts, of mechanism for supplying
empty bobbins to the spindles, substantially as set forth.
3. The improved construction and arrangement of parts of means or apparatus for
removing and replacing the flyers, substantially as set forth.

page_text: 4. The improved construction and arrangement of parts of doffing mechanism for
holding, raising and lowering the flyers, in combination with the parts supporting
and transferring the empty bobbins or foundations for the windings, to replace the
full bobbins, substantially as set forth.
11
T
1000
WM. BROOKES & SON,
55/56, Chancery Lane, London, Agents for the Applicants.