Improvements in Machinery for Spinning and Twisting.
Year: 1885

page_text: Improvements in Machinery for Spinning and Twisting.
I WILLIAM JAMES BAKER, of Town Hall Chambers Bradford, in the county of
York, Consulting Engineer, and Patent Agent, do hereby declare the nature of this
invention (a communication from Walker Riley, of the Riley Manufacturing
Company, Lowell, in the United States of America) to be as follows:-
This invention relates to an improved method of and apparatus for driving the
wharls of cap spinning frames.
To carry out the improvements instead of using one central cylinder from which
the wharls on both sides of the frame are driven and which only allows of very
short bands or cords being used, for driving the wharls, I make use of two driving
shafts extending the whole length of the frames, upon which shafts are fixed a
number of grooved pulleys corresponding in number with the wharls to be driven.
These grooved pulleys each actuate a cord, which drives a wharl upon the opposite
side of the frame to that upon which the shaft carrying the pulley is placed so that
a greater length of driving band may be used whereby the excessive strain to which
the short bands hitherto in use have been subjected is obviated.
This effects a saving by lessening the risk of breakage gives greater elasticity
and durability to the bands and bearings and effects a saving in power.
The longer bands herein referred to have a greater range vertically and therefore
admit of the use of longer bobbins. The cords of one set of pulleys pass to the
wharls they drive between the grooved pulleys placed upon the opposite side of the
frame.
.

page_text: 18
Improvements in Machinery for Spinning and Twisting.
I, WILLIAM JAMES BAKER of Town Hall Chambers Bradford, in the County of
York, Consulting Engineer and Patent Agent do hereby declare the nature of this
invention (a communication from Walker Riley of the Riley Manufacturing
Company, Lowell in the United States of America) and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement:―
t
This invention relates to an improved method of and apparatus for driving the
wharls of cap spinning frames.
To carry out the improvements, instead of using one central cylinder from which
the wharls on both sides of the frame are driven, and which only allows of very
short bands or cords being used for driving the wharls, I make use of two driving
shafts, extending the whole length of the frames, upon which shafts are fixed a
number of grooved pulleys, corresponding with the number of wharls to be driven.
These grooved pulleys each actuate a cord, which drives a wharl upon the opposite
side of the frame to that upon which the shaft carrying the pulley is placed, so that
a greater length of driving band may be used, whereby the excessive strain to
which the short bands, hitherto in use, have been subjected to is obviated.
This effects a saving by lessening the risk of breakage, gives greater elasticity
and durability to the bands and bearings, and effects a saving in power.
The longer bands herein referred to, have a greater range vertically, and
therefore admit of the use of longer bobbins.
The cords or bands of one set of pulleys pass to the wharls they drive between
the grooved pulleys placed upon the opposite side of the frame.
In order to enable the invention to be fully understood, I will proceed to describe
the same with reference to the accompanying drawings, in which Figure 1 represents
an elevation, partly in section, of a spinning frame to which my improved method
of driving the wharls is applied.
Figure 2 represents a plan of a portion of a spinning frame, of which the upper
part has been removed, and showing my improved method of driving the wharls.
Similar letters refer to similar parts in both Figures 1 and 2.
Instead of the cylinders hitherto in use which were placed in the centre of the
frames, and midway between the two rows of spindles, I make use of a double row
of grooved pulleys, represented at A and A¹ fixed upon the two shafts F and G,
which two shafts, with the grooved pulleys they carry, are caused to revolve
together by means of the drums H and J, connected by the leather belt K or by
gearing. The grooved pulleys A drive. the wharls (and tubes B, by means of the
bands or cords, D, and the grooved pulleys A¹ drive the wharls and tubes C, by
means of the bands or cords E.
By placing the shafts carrying the driving pulleys at the opposite side of the
frame to that upon which the wharls and tubes they drive are placed, nearly double
the length of driving band or cord can be used, than has hitherto been possible
when the wharls were driven from a cylinder placed in the centre of the frames, or

page_text: midway between the two rows of spindles, and by using longer bands or cards, a
greater vertical range or traverse can be obtained, whereby longer bobbins may
be used, the strain upon the bands, and the liability to breakage is reduced and less
power is required to drive the wharls, as there is less friction.
As will be seen in Figure 2, the bands or cords driven by each set of grooved
pulleys pass between the pulleys on the opposite side of the frame.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
The improved method of driving the wharls and tubes of spinning and twisting
frames by means of two rows of grooved pulleys, each row of pulleys upon a
shaft placed upon the opposite side of the frame to that upon which the wharls
and tubes they drive are placed, substantially as described and represented in the
accompanying drawings.