IMPROVEMENTS IN RING SPINNING, DOUBLING, AND TWISTING FRAMES."
Year: 1880

page_text: LETTERS PATENT to Thomas Guest and Thomas Brookes, both of Manchester,
in the County of Lancaster, for an Invention of "IMPROVEMENTS IN RING
SPINNING, DOUBLING, AND TWISTING FRAMES."
PROVISIONAL SPECIFICATION left by the said Thomas Guest and Thomas
Brookes at the Office of the Commissioners of Patents on the 4th June
1880.
THOMAS GUEST and THOMAS BROOKES, both of Manchester, in the County of
Lancaster. "IMPROVEMENTS IN RING SPINNING, DOUBLING, AND TWISTING
FRAMES."
Our Invention consists in a new method of securing the thread while doffing,
whereby the operation is rapidly and easily effected.
We make use of a washer of india rubber, leather, or other similar yielding
substance, which is fixed on the spindle above the tube by means of a grooved
collar, in the groove of which the india rubber fits, or by other means; this washer
is rather larger in diameter than the inside of the bobbin.
When the bobbin or spool is taken off the spindle a portion of the yarn is
allowed to unwind itself and coil round the spindle; the empty bobbin is then
dropped on to the spindle and catches the yarn between the india rubber washer
and the bobbin and holds it secure. This washer will give increased friction and
assist in driving the bobbin. The washer may be made of spring steel or other
metal so constructed as to yield easily.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Thomas Guest and Thomas Brookes in the Great Seal Patent Office on
the 4th December 1880.
THOMAS GUEST and THOMAS BROOKES, both of Manchester, in the County of
Lancaster. "IMPROVEMENTS IN RING SPINNING, DOUBLING, AND TWISTING
FRAMES."
Our Invention consists in a new method of securing the thread while doffing,
whereby the operation is rapidly and easily effected.
We make use of a washer of india rubber leather or other similar yielding
substance which is fixed on the spindle above the tube by means of a grooved
collar (in the groove of which the india rubber fits) or by other means; this
washer is rather larger in diameter than the inside of the bobbin. When the
bobbin or spool is taken off the spindle a portion of the yarn is allowed to unwind
itself and coil round the spindle. The empty bobbin is then dropped on to the
spindle and catches the yarn between the washer and the bobbin and holds it
secure. This washer will give increased friction and assist in driving the bobbin.
The washer may be made of spring steel or other metal so constructed as to yield
easily, and in order that our Invention may be fully understood and readily
carried into effect we will describe the accompanying Sheet of Drawings, reference
being had to the Figures and letters marked thereon. Figure 1 is an elevation of
a spindle to which our Invention is applied; Figure 2 shews a full bobbin on the
spindle ready to be doffed; and Figure 3 is an elevation in section shewing how
the yarn is held between the washer and the bobbin. A is the thread board; C is
the bolster tube; D, the spindle rail; E, the footstep; and G, the ring rail. All
these parts are of the usual construction; B is the spindle; F is the washer (or
flexible doffing braid, made of leather or other suitable material secured on the
spindle by a collar; H is the bobbin; and I is a bush which rests on the washer.
The mode of operation is as follows:-When the bobbin is full the machine is
stopped, and the operative without breaking the yarn removes the full bobbin from
the spindle, with one hand, and with the other hand places an empty bobbin on the
spindle, and the yarn is held between the washer and the empty bobbin, thus
avoiding the necessity of wrapping the end round the bobbin; the machine is
started and each bobbin takes up its own end.
The washer also drives or assists in driving the bobbin, and by fixing the bush I
in the same position in all the bobbins they will all remain at a uniform height
when placed on the spindles.
We have shewn
"
a Booth-Sawyer" spindle and a washer made of three thin
pieces of leather secured on the spindle by a grooved collar, but the washer may
be made of one or more pieces, and of india rubber or other material, and it may
be otherwise secured on the spindle shewn, or on another kind of spindle.
Having stated the nature of our Invention and described the manner of
performing the same, we declare that we claim,―
The flexible washer F made of leather, india rubber, or other yielding material,
substantially as and for the purposes herein described.
In witness whereof, we, the said Thomas Guest and Thomas Brookes have
hereunto set our hands and seals, this Second day of December, One
thousand eight hundred and eighty.
THOMAS GUEST. (L.S.)
T. BROOKES.
(L.S.)