IMPROVEMENTS IN APPARATUS FOR TWISTING OR DOUBLING YARNS
Year: 1883

page_text: PROVISIONAL SPECIFICATION left by Joseph Farrar at the Office of the
. Commissioners of Patents on the 12th March 1883.
JOSEPH FARRAR, in connection with the firm of J. B. Farrar of Halifax in the
County of York, Machine Maker "IMPROVEMENTS IN APPARATUS FOR TWISTING
OR DOUBLING YARNS
"
My invention consists in a new arrangement and combination of parts for
twisting or doubling woollen and other yarns, whereby easy facility is afforded for
removing the driving band when it is necessary to reverse the direction of twist
put into the yarns and for stopping the spindle.
One method of carrying out my invention consists in the employment of a
"Rabbeth" spindle or a modification thereof, or what I call a self-contained spindle
having the wharle for driving same placed above the top spindle-rail of the twisting
frame.
The upper half of a wharle is formed on the spindle about midway of its length
and that part of the spindle below the wharle is placed within a long tube or
socket fixed in the spindle rail and projecting below it. On the long tube or
socket is placed loosely the lower half of a wharle, and when the spindle is
placed into the tube the two halves of the wharle come close together.
The upper end of the tube or socket passes up inside the wharle on the spindle
whilst the lower point of the said spindle rests at the bottom of the long tube or
socket
When it is necessary to stop the rotation of the spindle the band guide is lowered
and moves the band from the upper half of the wharle on to the loose wharle
placed on the tube or socket. When a fast and loose wharle is employed in this
manner and on this class of a spindle it greatly facilitates the reversing of the
driving band when it is required to alter the direction of twist, because when the
spindle is stopped and the driving band is on the loose wharle, the spindle is easily
taken out of the tube or socket and the band reversed.
The method of dividing the wharle, and arranging it to be placed above the
spindle rail allows of the driving band being removed, which could not easily be
done when the wharle is placed below the said spindle rail as is now the case.

page_text: Another method of carrying out my invention in connection with the same class
of spindle, consists in placing the whole of the wharle loosely upon the long tube or
socket having a flange thereon, and in placing upon the spindle a metal tube or
sleeve with a flange at its bottom end, resting upon the top flange of the wharle.
The spindle is thus driven by frictional contact with the wharle and when it is
required to stop the rotation of the spindle and bobbin the spindle is lifted from
contact with the wharle by means of a lifter.
The before mentioned Hanges one on the loose wharle, and the other on the
spindle can be made flat or conical in order to gain more or less frictional contact.
The driving band is as easily reversed in this method as in the other.
In combination with any of the arrangements of tubes and spindles herein
described I employ a ring and traveller for guiding the yarn to the bobbin. I also
employ in connection with the same class of spindles, an ordinary flyer without
twizzles or without a ring at the bottom of the flyer arms to keep the flyer from
expanding in combination with the ring and traveller, by this means I work the
flyer with a short self contained spindle as before described.