IMPROVEMENTS IN SPINNING AND TWISTING SPINDLES AND FLYERS
Year: 1884

page_text: NAVARE
We JOHN MACFARLANE Managing Director Milford Mill Belfast and THOMAS
WATSON Engineer Milford Mill Belfast, do hereby declare the nature of our said
Invention for "IMPROVEMENTS IN SPINNING AND TWISTING SPINDLES AND FLYERS
to be as follows:-
1
The object of our Invention is to provide means for connecting the flyers to the
spindles so that whilst the flyers are held firmly secured on the spindles when at
work they can be instantly removed for doffing or changing. the bobbins-The
construction is such also that the frequent renewals of the connectings which are
necessary with flyers and spindles as ordinarily constructed are obviated and there
is also a saving in first cost. In the case of twisting spindles an additional
advantage is that the motion of the spindle can be reversed without the necessity
for removing the flyer.
According to our Invention the spindle for spinning frames is made with a
conical upper part and is shoulderless. A groove or slot extends downwards from
the top of the spindle and at its lower part opens into a groove or slot which
extends to one side in a downward direction.
The twisting spindle is also conical and shoulderless but the groove or slot which
extends downwards from the top of the spindle opens at its lower part into two
grooves or slots extending in a downward direction one to the right and one to the
left hand so that the interlocking arrangement is effectual in whichever direction
the spindle may revolve.
The flyer is closed at top and is conically bored out to fit the spindle top and has
a projection on the inside which projection preferably consists of a conical pin
driven into a conical hole in one side. This hole is bored and the pin is driven in
from inside the hole in the flyer which prevents the pin from getting loose or
being forced out of the flyer.
The flyer is preferably formed with a boss or thickening at the part where the
pin passes through and a counterbalancing boss is formed at the other side.
When the flyer is placed on the spindle the pin engages with the downward
groove or slot and is then turned to one side so that the said pin engages with the
side-way groove or slot or with one or other of them in the case of a twisting
spindle. This engagement causes the flyer to be firmly jammed upon the conical
end of the spindle Owing to the spindle being without a shoulder there can be no
slackening of the flier on the spindle as it wears.

page_text: We JOHN MACFARLANE Managing Director Milfort Mill Belfast Ireland and
THOMAS WATSON Engineer also of Milfort Mill Belfast Ireland do hereby declare
the nature of our said Invention for "IMPROVEMENTS IN SPINNING AND TWISTING
SPINDLES AND FLYERS" 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 our Invention is to provide means for connecting the Flyers to the
spindles so that whilst the flyers are held firmly secured on the spindles when at
work they can be instantly removed for doffing, or changing the bobbin. The
construction is such also that the frequent, renewals of the connections which are
necessary with flyers and spindles as ordinarily constructed are obviated and there
is also a saving in first cost. In the case of spindles for right and left hand
twisting, an additional advantage is that the same flyer can be used in whichever
direction the spindle is revolved and therefore the necessity for removing the flyer
and replacing it by another is obviated.
We will describe our Invention with reference to the accompanying Drawing
whereon Figures 1 and 2 are elevations (taken at right angles to each other) of the
spindle and flyer as arranged for spinning frames or for twisting in one direction
only, the upper part of the flyer being in section. Figure 3 shews the arrangement
applied to the spindle for right and left hand twisting.
Referring to figures 1 and 2, the spindle a is made with a conical upper part a*
and is shoulderless, that is to say, it has no shoulder at the part as for the flyer to
abut against. A groove or slot b extends downwards from the top or near the top
of the spindle a, and at the lower part of the said groove or slot at 6², it extends
to one side in a downward direction. The spindle for right and left hand twisting,
as shewn in Figure 3, is also conical and shoulderless but the groove or slot
which extends downwards from the top or near the top of the spindle opens at its
lower part into two grooves or slots 6 6ª extending in a downward direction one
to the right and the other to the left hand so that the interlocking with the flyer
arranged as hereinafter described is effectual in whichever direction the spindle
may be revolved,
The flyer c in both cases may be closed or open at top and is conically bored out
to fit the conical top a³ of the spindle and has a projection on the inside which
consists of a conical pin d driven into a conical hole in one side. This hole is
bored and the pin d is driven in from inside the hole in the flyer which prevents
the pin from getting loose or being forced out of the flyer as the larger part of the
pin and of the hole are presented inwards. The said flyer is formed with a boss or
thickening at the part where the hole for the pin d is formed so that a sufficient
bearing is given for the pin. A corresponding boss for thickening is preferably
formed at the opposite side of the flyer to counterbalance the boss f. The passage
at e through the said boss f admits of the hole for the pin d being readily bored
and also of the insertion of the said pin d into the said hole. The said passage e is
preferably plugged after the pin has been fixed in position.
When the flyer o is placed on the spindle a the pin d engages with the down-
ward groove or slot 6 and is then turned to one side so that the said pin d engages
with, the sideway portion 6' of the groove or slot or with one or other of them in
the case of a right and left twisting spindle. This engagement causes the flyer to
be firmly jammed upon the conical end a³ of the spindle a. Owing to the spindle
being without a shoulder and the conical form of the pin d and its hole together
with the long bearing formed by the boss f there can be no slackening of the flyer
on the spindle as it wears.

page_text: Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed we declare that what
we claim is :-
First-In spindles or flyers for spinning and twisting frames the combination
of a spindle with a conical top without a shoulder and with a slot or groove or
slots or grooves tending to one or to both sides and a flyer carrying a conical pin
for engaging with the said slot or groove or slots or grooves the said pin being
driven from the inside into a conical hole in the flyer substantially as and for the
purposes herein before described with reference to the accompanying drawings.
Second-In spindles or flyers for spinning and twisting frames the combination
of a spindle with a conical top without a shoulder and with a slot or groove or
slots or grooves tending to one or to both sides and a flyer carrying a conical pin
for engaging with the said slot or groove or slots or grooves the said pin being
driven from the inside into a conical hole in a boss on the flyer affording a long
bearing for the said pin in the flyer (with or without a counterbalancing boss at
the opposite side of the said flyer) substantially as and for the purposes herein-
before described with reference to the accompanying drawings.
JOHN MACFARLANE.
THOMAS WATSON,