Improvements in Machines for Winding Yarn and Thread.
Year: 1897

page_text: Improvements in Machines for Winding Yarn and Thread.
ARTHUR WILSON METCALFE and JOHN BARBOUR MORRISON, both of Grove Mill,
Belfast, in County Down, Flax Spinners, do hereby declare the nature of this
invention to be as follows:-
This invention relates to improvements in machines for winding yarn and
thread in which the tube or bobbin rolls round upon a revolving drum when
winding whilst the spindle and tube or bobbin are supported in a swinging frame.
The invention relalates to the application of friction to the swinging bobbin
frame so as to prevent the bobbin from dancing and becoming oval as the yarn is
being wound on; a trouble frequently met with in winding yarn or thread of a
hard nature such as flax and the like.
A spring or rubber is applied so as to exert pressure against the arm or arms or
some part of the bobbin frame in such a manner as to produce a certain amount
of friction in resistance to its swinging up and down, and especially at the com-
mencement of a fresh bobbin or tube.
One form of the spring is applied upon the bar on which the bobbin frame
swings and may press against a part of or a projection upon the bobbin frame or
upon two opposite bobbin frames simultaneously. The spring is curved almost
to the radius of the part of the bobbin frame in contact with it, so as to maintain
a fairly constant pressure as the frame swings up and down. The said spring is
held in position by means of a nut or screw which by being tightened down upon
the curved spring may cause it to apply more or less friction to the bobbin frame
or frames.
Friction may also be applied by putting spiral springs upon the bar on which
the bobbin frames swing, and these springs may press against the bobbin frames.
Springs may also be mounted upon some other part of the machine and bear
against the bobbin frames, or springs may be attached to the bobbin frames and
bear against any convenient part of the frame. Instead of springs for applying
friction to the bobbin frames, the frames may be made capable of being nipped in
the bearing upon the rod by means of an adjusting screw closing up a cap or a
saw-cut. Dead weight may also be applied against the bobbin frames by means of
small levers, or a strap of leather or the like may be pressed against the bobbin
frames.

page_text: winuing 1агдаnu iureau.
We, ARTHUR WILSON METCALFE and JOIN BARBOUR MORRISON, both of Grove
Mill, Belfast, in County Down, Flax Spinners, 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 improvements in machines for winding yarn and thread
in which the tube or bobbin rolls round upon a revolving drum when winding
whilst the spindle and tube or bobbin are supported in a swinging frame.
The invention relates to the application of friction to the swinging bobbin
frame so as to prevent the bobbin from dancing and becoming oval as the yarn is
being wound on: a trouble frequently met with in winding yarn or thread of a
hard nature such as flax and the like.
A spring or rubber is applied so as to exert pressure against the arm or armis
or some part of the bobbin frame in such manner as to produce a certain amount
of friction in resistance to its swinging up and down, and especially at the com-
mencement of a fresh bobbin or tube.
The manner in which this is performed is shewn by reference to the accompany-
ing drawings.
Fig. 1 shews in plan a pair of bobbin frames A, A' mounted opposite each other
upon a rod B B and kept from lateral movement upon the rod by means of a central
boss D and set screw E. In Fig. 2 the same is shewn in sectional elevation. The
dotted arcs with arrows at C shew the direction in which the frames A & A¹ swing
as the bobbins fill with yarn. A curved friction spring SS¹ is secured upon the
boss D by means of the set screw E and a nut F, and the two extremities of the
said spring press outwards against the cross bars of the frames A & A at a and a¹
respectively. The part of the boss D upon which the spring is held down is pre-
ferably flat so that by screwing the nut F down upon the spring it tends to flatten
out the curve and increase the pressure of the blades S S¹ upon the frames at a a¹.
The crown of the spring where secured at F is preferably slightly nearer the centre
of B than the radius from B to the surface at a & a¹ so that the frames may be
lifted freely up to the highest point whilst the pressure of the blades may tend
always to diminish as the frames rise.
Fig. 3 shews in sectional elevation another form of the spring S S¹ applied so
as to bear upon the outer instead of the inner surfaces of the frames at a a. The
adjustment of pressure by means of the nut F is effected as in Fig. 2 but with the
reverse effect and the height of the crown of the spring at F is slightly farther
from the centre of B than the radius from B to the surface of a & a¹ touched by
the spring.
In the case of both Fig. 2 and Fig. 3 the springs may be separate for each
frame A and A' and each secured by separate setscrews, whilst an independent
screw may be employed for securing the boss D to the rod B.
Fig. 4 illustrates another application of the springs S S¹ in which one is secured
to each of the frames at a, a¹ and each blade bears against a projection D¹ pre-
ferably formed on the boss D. To adjust the pressure of the springs the set-
screws FF may be tightened or eased upon the curved spring bearing against the
flattened surfaces of a and a¹. In all the cases illustrated the springs S S¹ may
be mounted if desirable upon the opposite side of the axis B without affecting the
principle of their action and adjustment.
Having now particularly described and ascertained the nature of our said

page_text: invention, and in what manner the same is to be performed, we declare that what
we claim is: -
1. The arrangement of bent spring blades and means of adjustment for same
as applied to the bobbin frames of drum winding frames, substantially as described
and illustrated by Figs. 1, 2 and 3, either applied jointly to two opposite bobbin
frames A, A' or to each one separately and independently.
2. The arrangement of bent spring blades and means of adjustment for same.
as applied to the bobbin frames of drum winding frames, substantially as described
and illustrated by Fig. 4.
1
1004
ARTHUR W. METCALFE,
JOHN B. MORRISON.