Improvements in the Method of and Apparatus for Preparing Wool and other Fibres for Spinning.
Year: 1887

page_text: Date of Application, 9th Feb., 1887
Complete Left, 9th Nov., 1887
Complete Accepted, 9th Dec., 1887
Improvements in the Method of and Apparatus for Preparing Wool
and other Fibres for Spinning.
I, JOHN WILLIAM SMITH, of Field Head Mills, Bradford, in the County of York,
Spinner, do hereby declare the nature of this invention to be as follows :-.
This invention relates to certain improvements in machines for drawing and
preparing wool and other fibres, and has for its object, the combination with the
machines such mechanism, that I am enabled to increase the speed of the drawing
rollers, and thus draw or prepare a greater weight of fibre with the machine, than
when arranged as hitherto.
In machines as hitherto constructed, the limit of the delivery of the fibre by the
drawing or reducing rollers, has been governed by the speed at which the spindles
and flyers have been run which put twist into the sliver of fibre as it leaves the front
rollers.
According to my arrangement I dispense with the ordinary spindles and flyers
used for twisting and winding the slivers delivered by the front rollers on to bobbins,
also the creels for supporting the supply bobbins are dispensed with, and in substitu-
tion therefor, deposit the slivers to be reduced or drafted by preference in cans in a
practically untwisted condition, and place the cans behind the drawing rollers on
revolving plates, rotated at such a speed, so as to give the slivers the necessary twist
as they are entering the nip of the back rollers, sufficient to prevent "lapping'
around the intermediate carriers.
22
In all drawing and preparing machines, the front drawing rollers revolve quicker
than the back to produce the draft for reducing the thickness of the combined slivers,
and as the speed of the front rollers is limited by the speed of the spindles on the
front side, it will be obvious to persons conversant with spinning, that by the removal
of such, and putting the necessary twist in the slivers at the back where the rollers
revolve considerably slower than the front, that the speed of the drawing rollers can
be increased, and therefore pass a proportionately greater weight of fibre through in
a given time than can be accomplished by the usual method, and by having no
twisting arrangement at the front, the slivers after being reduced, are delivered in a
practically untwisted condition into cans ready for the next process of reducing.
Dated this 2nd day of Februar 1887

page_text: and other Fibres for Spinning.
I, JOHN WILLIAM SMITH, of Field Head Mills, Bradford, in the County of York,
Spinner 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 relates to certain improvements in machines for drawing and
preparing wool and other fibres, and has for its object, the combination with the
machines of such mechanism that I am enabled to increase the speed of the drawing
rollers and thus draw or prepare for spinning a greater weight of fibre and more
uniform sliver than when the machine is arranged as hitherto.
In machines of the ordinary construction, the limit of the delivery of the fibre by
the drawing or reducing rollers has been governed by the speed at which the spindles
and flyers have been run, and which put twist into the slivers or cords of fibre as they
leave the front rollers.
In the accompanying drawings, Fig. 1 represents a section through a drawing or
preparing machine, and Fig. 2 a plan thereof.
The main shaft A, of the machine, and the rollers B, and B', are operated in the
usual manner; and according to my invention, I dispense with the usual creels at the
back for supporting the supply bobbins, and with the spindles and flyers used for
twisting and winding the slivers delivered by the front rollers B¹ on to bobbins on
the spindles, and thereby dispense with the usual drag washers placed under the
bobbins, which as is well known under a variety of circumstances, for example, such
as the difference in the weight between a full and empty bobbin, allow a varying drag,
and thereby a varying thickness in the slivers or cords of fibre, resulting in a difference
in the thickness of the yarn, which I obviate by arranging the machines in the
following manner.
"
The slivers to be reduced or drafted are placed in cans C, in a practically untwisted
condition, and each can is placed on a revolving plate D, rotated by the shafts E, and
wheels F, at such a speed, to give to the slivers or cords the necessary twist before
entering the nip of the rollers B, in order to prevent what is termed "lapping
around the intermediate carriers G; the fibre being drawn or reduced by the front
rollers B¹, and each reduced sliver or cord deposited in a can C¹, placed on the
rotating table or plate D¹, of an ordinary coiling head, operated by the shaft H and
bevel wheels J.
In all drawing, preparing or reducing machines, the front drawing rollers B',
revolve quicker than the back rollers B, to produce the draft for reducing the thickness
of the combined slivers or cords of fibre: and as the speed of the front rollers B' is
limited by the speed at which the spindles at the front side can be run, it will be
obvious to persons conversant with spinning, that by the removal of the rotating

page_text: spindles, and putting the necessary twist into the combined slivers or cords of fibre at
the back for the prevention of "lapping," that the speed of all the rollers B and B
can be increased, and therefore pass a proportionately greater weight of fibre through
the machine in a given time, than can be accomplished by machines fitted with
spindles.
Any twist put into the fibre previous to its entering the nip of the rollers B, is
removed by the drafting or reduction of the thickness of the combined cords or slivers,
and is delivered by the front rollers B', through a revolving funnel K, into a can (³,
on coiling head plate D¹; the cans being removed therefrom and taken to another
machine for further reduction; the operation being repeated by as many machines as
may be found advantageous, until reaching the roving boxes, when the fibre is wound
on to bobbins as hitherto.
Having now particularly described and ascertained the nature of this invention, and
in what manner the same is to be performed, I declare that what I claim is :—
The hereinbefore described process of drawing or reducing slivers or cords of fibre,
the essential novelty in such process consisting in dispensing with the rotating spindles
and bobbins thereon for receiving the reduced fibre, and substituting therefor cans
from which the fibre is drawn on one side of the machine, and delivered into similar
cans on the other side, all being arranged substantially in the manner shewn and
described.
JOHN WAUGH,
Bradford, Yorks.