Improvements in or relating to Bobbin-creels employed in Warping Yarn.
Year: 1892

page_text: * Date of Application, 14th Jan.. 1892
Complet: Specification Left, 13th Oct.. 1892-Accepted, 19th Nov, 1592
PROVISIONAL SPECIFICATION.
Improvements in or relating to Bobbin-creels employed in
Warping Yarn.
We, EDWARD HOLLINGWORTH, of the firm of Hutchinson Hollingworth and
Company Limited, of Atlas Works, Colne Road, Huddersfield, in the County of
York, Machine Makers, and WILLIAM MITCHELL of the same place, Manager,
do hereby declare the nature of this invention to be as follows:-
According to the present construction of bobbin-creels, the warp threads are
pulled off the bobbins as they are being taken up by the warping mill, and as
the bobbins attain a very high velocity in consequence of the speed at which the
warping mill runs, it follows that when the warping mill is stopped for whatever
cause, the momentum of the bobbins causes them to over-run or continue to revolve
after the warping mill has stopped, consequently there is a considerable quantity
of slack warp lying between the bobbins and the warping mill, which is detrimental
to even and uniform warping, and shows itself in the fabric when woven.
In
addition to the bobbins over-running themselves, it frequently happens that the
warp breaks by the pull, occassioned when commencing to turn the bobbins over.
The object of our invention is to prevent the objections complained of, and this we
accomplish by driving each creel bobbin separately, and this we effect by the
employment of a surface drum for each bobbin, that is to say, we place each creel
bobbin upon a surface drum, driven by frictional or other suitable form of gearing,
from the warping mill, so that when the warping mill stops each surface drum; and
the creel bobbin resting thereon also stops. We also provide means to increase
the speed of the creel bobbins in proportion to their decreased diameter by the
unwinding of the warp therefrom, and also to meet the requirements of the
increasing diameter of the swift caused by the sections of warp wound thereon, and
this we effect by placing a cone pulley on the warping mill cylinder and as this
has an endwise motion for winding the warp in sections upon it, the speed of the
creel bobbins is thus made relative to the taking up of the warp.
By means of our invention the bobbins cannot over-run themselves, as they
commence to revolve with the warping mill and cease to revolve instantaneously
with the warping mill, and as the creel bobbius are driven by frictional contact
with the surface drum 'the tension on the warp is brought to a minimum and fewer
breakages occur whilst the warp will be wound in a more regular and uniform
manner.
Dated this 13th day of January 1892.
TASKER & CROSSLEY,
Agents.
COMPLETE SPECIFICATION.
Improvements in or relating to Bobbin-creels employed in
Warping Yarn.
We, EDWARD Hollingworth, of the firm of Hutchinson Hollingworth and
Company Limited, of Atlas Works, Colne Road, Huddersfield, Yorkshire,
Machine Makers, and WILLIAM MITCHELL, of the same place, Manager, 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 :-
According to the present construction of bobbin-creels, the warp (threads are
pulled off the bobbins as they are being taken up by the warping mill, and. as the

page_text: In
bobbins attain a very high velocity in consequence of the speed at which the
warping mill runs, it follows that when the warping mill is stopped for any cause
the momentum of the bobbins causes them to over-run or to continue revolving
after the warping mill has stopped and so pay out a considerable quantity of warp
which lies slack between the bobbins and the warping mill. This is detrimental
to even and uniform warping and shews itself in the fabric when woven.
addition to the bobbins over-running themselves it frequently happens that the
warp breaks by the pull occassioned when commencing to turn the bobbins over.
The object of our invention is to prevent these evils, which we accomplishi
by driving each creel bobbin separately, and this we effect by the employment of
a surface drum for each bobbin, that is to say, we place each creel bobbin upon a
surface drum driven by frictional or other suitable form of gearing. from the
warping mill so that when the warping mill stops each surface drum and the creel
bobbin resting thereon, also stop.
We also provide means to increase the speed of the creel bobbins in proportion
to their decreasing diameter and relative to the taking up of the warp.
Such being the nature and object of our invention, we hereinafter give a
complete description of same reference being had to the accompanying sheets of
drawings, wherein :-
Fig. 1 is plan view of portions of a bobbin crcel and warping mill for warping
yarn, having our improvements applied.
Fig. 2 is enlarged end elevation of the lower portion of the bobbin creel, and
Fig. 3 is enlarged section of warping mill taken on line 1, 2, of Fig. 1.
Referring to the drawings A represents the framing of the bobbin creel arranged
at an acute angle to the warping mill as is usual and supported on carriages B
whereof only one is shewn, by which the creel can be traversed the full width of
the warping mill C to bring it into line with each subsequent section to be built
up on the mill as is understood. The warping mill C is driven by spur wheel D
from pinion E on the main driving shaft F and is moved endwise in the direction
of arrow a to build up the section in the form of a rhomboid by screw and nut or
other known means at present employed.
Supported in bearings in the cross bars e forming part of the creel and which
are arranged at an angle of 45° to the sides A, are surface drums & built in tiers
one above the other, of which only two are shewn at Fig. 2. Mounted on the
axes d' of said drums are bevils e gearing with other bevils f mounted on shafts
extending the full length of the bobbin creel and supported in bearings ƒ bolted
to the framework. The shaft serves to drive all the surface drums in the same
plane, there being one such shaft to each tier of surface drums and cach shaft is
driven by a pair of bevils a from the vertical shaft which receives its, motion by
bevils and toothed wheels from the shaft to which motion is communicated
by the pairs of bevils h², and shaft 3 from the cone pulley k driven by frictional
contact with cone pulley & mounted on the shaft of the warping mill C. The cone
pulley is carried on a stud secured to the end of a lever having its fulcrum
at and weighted at 3 and, during the building up of a section of warp, the
parts are in the positions shewn in Fig. 3, the cone pulley k being in engagement
with the cone pulley G, but when the section has been completed the attendant
operates the lever so as to raise the free end of lever k¹ and throw the cone
pulley out of the engagement with the pulley G whereon the parts giving
motion to the surface drums become stationary and remain so until the warping
mill has been moved back to its original position in readiness for the next section
of warp. To allow for the movement of the lever ', the shaft part of which is
supported by brackets bolted to said lever, is jointed as shewn at i, i, in Fig. 1.
On the cross bars c of the bobbin creel are formed inclined surfaces m for
supporting the axles of the creel bobbins n having the warp wound thereon, which
said bobbins rest on the surface drums d and are rotated by frictional contact
therewith so as to unwind the warp from the bobbins at the same speed as it is
taken up by the rotation of the warping mill.

page_text: By this means we make the rotation of the creel bobbins dependent on the
rotation of the warping mill so that whenever the latter is stopped the bobbins at
once cease to rotate whereby there is no liability of them over-running themselves
and causing an undue slackness of warp threads between the creel and the warping
mill, nor is there any liability of said warp threads being broken by the pull of the
warping mill in commencing to wind on the warp as the unwinding and winding-ou
commence simultaneously.
The speed at which the surface drums are driven is controlled by the end wise
movement of the cone pulley G whose gradual traverse with the warping mill in
the direction of arrow a shifts its position with relation to the cone pulley k and
gradually increases its speed and consequently the speed of the surface drums, so
that the speed of the creel bobbins is increased in proportion as their diameter
decreases by the unwinding of the warp therefrom, and in this manner the warp.
threads are unwound from the creel bobbins at the same relative speed throughout
as they are wound upon the warping mill.
P
Full or empty bobbins when not in use may be placed in the bearings formed
at the upper ends of the inclined surfaces m.
By the means herein set forth the tension on the warp is minimised, fewer
breakages occur, and the warp is wound on in a more regular and uniform.
manner.
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 :-
Firstly. In bobbin creels employed in warping yarn, the combination therewith.
of surface drums operated by or from the warping mill, for purposes substantially
as herein described.
Secondly. In warping yarn, the means and method substantially as herein.
shewn and described for increasing the speed of the creel bobbins, in proportion.
to their decreasing diameter and relative to the taking up of the warp by the.
warp mill.
Dated this 12th day of October 1892.
TASKER & CROSSLEY,
Huddersfield, Agents.