IMPROVED MECHANISM FOR DRIVING THE WHARLS AND TUBES EMPLOYED IN CAP SPINNING
Year: 1886

page_text: Employed in Cap Spinning.
I, JOSEPH WOOD of Boggs, Allerton, Bradford in the County of York Mechanic
do hereby declare the nature of this invention for IMPROVED MECHANISM FOR
DRIVING THE WHARLS AND TUBES EMPLOYED IN CAP SPINNING and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement:-
The object of this Invention is to reduce and equalize the strain upon the bands
or cords used for driving the wharls and tubes employed in Cap Spinning, which
object I attain by causing the driving cylinder to actuate intermediate vertical
drums, which revolve upon fixed and stationary upright spindles upon a rail fixed
across the spinning frame behind the lifter-plate, which drums each communicate
motion to two or more wharls by means of tapes. The tapes which pass round the
vertical drums, and also round the wharls to be driven, are able to move up and
down these drums following the rising and falling motion communicated to the
wharles and tubes by means of the lifter plate.
The unequal strain upon the driving bands, which has hitherto been caused by
the wharls leaving the central plane in which the driving cylinders revolve, is
thereby avoided, and longer bobbins may be used.
In order to enable my Invention to be fully understood I will proceed to describe
the same with reference to the accompanying drawings in which
Figure 1 represents a sectional elevation of such portions of a Spinning frame as
are necessary to illustrate my invention.
Figure 2 represents a plan of the same partly in section.
Similar letters of reference indicate corresponding parts in both the drawings.
The driving cylinder which is represented at A is mounted in a lower position
than is usually the case in order to allow space for the tapes or bands H to cross
over and work above it.
The bands G receive motion from the driving cylinder A and run upon the
grooved pulleys C thereby actuating the vertical intermediate drums B which
drive the wharls and tubes D and E respectively upon the opposite side of the
Spinning Frame by means of the tapes or bands H. The spindles upon which the
vertical drums B with their grooved pulleys C revolve, are mounted upon fixed

page_text: rails J which pass from end to end of the Spinning frame. These rails J are
stationary and consequently the relative position of the grooved pulleys C with
regard to the cylinders A never varies, the strain therefore upon the driving
bands G is constant, notwithstanding the rise and fall of the tubes and washers
actuated by means of the lifter plate F. The tapes or bands H move up and down
the plain vertical drum B following the rising and falling motion of the wharls
and tubes, so that no extra strain is put upon the tapes or bands H at any part of
the movement of such wharls and tubes, and the strain upon the lifter plate is also
prevented which hitherto existed when it approached the top or bottom extremity
of its vertical motion.
In consequence of the gain of speed obtained by the method of driving the
wharls and tubes hereinbefore described, it will only be necessary to cause the
driving cylinder A to revolve at half its usual speed, and as each band or cord
from the driving cylinder actuates two wharls, half the number of driving bands
and one cylinder instead of two may be employed.
By employing one cylinder instead of two as in practice hitherto, by reducing
the number of driving bands or cords by one half, by equalizing and reducing the
strain upon the driving cords, bands or tapes and upon the lifter plate and by
reducing the speed of the driving cylinder a great saving of power is effected,
economy of bands or tapes, and avoidance of stoppages for repairs.
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 intermediate vertical drum B with the grooved pulley C, driven from the
cylinder A of a Spinning Frame, which vertical drum B drives two or more wharls
and tubes mounted upon the opposite side of the frame, all for the purpose and
operating substantially in the manner described and represented in the accompanying
drawings.