Improvements in Twisting Machinery.
Year: 1895

page_text: Date of Application, 29th Jan., 1895
Improvements in Twisting Machinery.
We, JOHN FRASER, PATRICK FRASER, and NORMAN FRASER, all of Wellgate
Works, Arbroath, in the County of Forfar, North Britain, Engineers, do hereby
declare the nature of this invention to be as follows, that is to say :-
Our said invention relates to twisting machinery of the kind in which the yarns
or threads to be twisted together are drawn through a guide eye by mechanism in
connection with the flyer, the guide eye being small and smooth so as to compress
and polish the yarns or threads as the twisting action operates on them whilst
passing through the guide eye. If the guide eye consists of a hole formed in an
otherwise solid piece as in existing machines, when the hole is a fit for the normal
size of the yarns, either lumps or irregularities on the yarns cause breakages,
whilst if the hole is large enough for thicker parts to pass without breakage, the
finish is defective upon the thinner parts of the twisted yarn.
By our invention we cause a uniform pressure to act on the yarns as they pass
through the guide notwithstanding inequalities in the aggregate thickness of the
yarns. For this purpose we, according to one modification, form the part in which
the guide eye is, in two pieces, one half of the eye being in the main body of the
part, and the other half in a separate movable piece fitting in a cut-out part of the
body. Pressure is applied to the movable piece by a bell-crank lever acted on by
an adjustable weight or spring. The bottom end of the hole may be slightly
flared to suit the increased size of the combined yarns, due to the twisting action.
The guide may have cne or more movable parts arranged to produce the same
effect.
Dated this Twenty-eighth day of January 1805
EDMUND HUNT,
Applicants' Agent.
Improvements in Twisting Machinery.
We, JOHN FRASER, PATRICK FRASER, and NORMAN FRASER, all of Wellgate
Works, Arbroath, in the County of Forfar, North Britain, Engineers, 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, that
is to say:
Our said invention relates to twisting machinery of the kind in which the yarns
or threads to be twisted together are drawn through a guide eye by mechanism in
connection with the flyer, the guide eye being small and smooth so as to compress
and polish the yarns or threads as the twisting action operates on them whilst
passing through the guide eye. If the guide eye consists of a hole formed in an
otherwise solid piece as in existing machines, when the hole is a fit for the normal
size of the yarns, either lumps or irregularities on the yarns cause breakages, whilst
if the hole is large enough for thicker parts to pass without breakage, the finish is
defective upon the thinner parts of the twisted yarn.

page_text: By our invention we cause a uniform pressure to act on the yarns as they pass
through the guide notwithstanding inequalities in the aggregate thickness of the
yarns. For this purpose we according to one modification form the part in which
the guide eye is in two pieces, one half of the eye being in the main body of the
part and the other half in a separate movable piece fitting in a cut-out part of the
body. Pressure is applied to the movable piece by a bellerank lever acted on by
an adjustable weight or spring.
And in order that our said invention and the manner of performing the same
may be properly understood we hereunto append a sheet of explanatory drawings,
to be hereinafter referred to, and showing as much of a twisting machine as is
necessary to explain our invention.
Figure, 1, of the drawings is a plan, and Figure, 2, is an elevation. Figure, 3,
is a plan, and Figures, 4, and 5, are elevations as at right angles to each other and
drawn to an enlarged scale of some of the parts shown in Figures, 1, and 2. In
these drawings the same reference letters are used to mark the same or like parts
wherever they are repeated.
The part containing the guide eye, A, is formed in two pieces, one the main
body part, B, having one half of the eye in it or at the inner end of a groove in a
small part, C, fixed to it whilst the other piece, D, is made with a tongue, E, having
the other half of the guide formed in its edge, the tongue projecting into the groove
in the part, C, of the main body part. The main body part, B, is in the form of a
lever centered on a pin, G, fixed in a bracket, H, on a vertical rod, J, and is held
up by an adjustable spring, K, (or the lever, B, might be a fixture). Pressure is
applied to the movable piece, D, by a bellcrank lever, L, acted on by an adjustable
weight, M, (or it might be by a spring). The lever, L, is centered on a pin, N,
fixed in a boss formed on the main body part, B, and the movable piece, D, is
attached to it by a pin, P. The bottom end of the hole, A, may be slightly flared
to suit the increased size of the combined yarns due to the twisting action. The
guide may have one or more movable parts arranged to produce the same effect.
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 :-
In twisting machinery, forming the part, in which the guide eye is, in two or
more pieces, with parts of the eye groove in cach, and applying pressure to the
pieces substantially as and for the purposes hereinbefore described.
Dated this Twenty-ninth day of August 1895.
EDMUND HUNT,
Applicants' Agent.