Improvements in Twisting Machinery.
Year: 1895

page_text: Date of Application, 4th Jan., 1895
Complete Specification Left, 30th Aug., 1895-Accepted, 12th Oct., 1895
PROVISIONAL SPECIFICATION.
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
arranged in connection with the flyer which twists them and delivers them to the
bobbin upon which they are wound; and our object is to improve and simplify the
drawing or hauling mechanism and the manner of combining it with the flyer.
In machinery made with our improvements the flyer is fixed on the bottom end
of a long tubular spindle held in upper and lower bearings in brackets formed on
the framing. In one modification of the driving details there are between the
bearings a fast and a loose pulley for a driving cord or band to drive the flyer;
and above the upper bearing there are a fast and a loose pulley for a cord or band
to drive the drawing or hauling mechanism. The upper fast pulley is fixed on a
barrel fitted to run loose on the flyer spindle; and it is this barrel which effects the
drawing operation. To the top of the flyer spindle there is fixed a head provided
with four pulleys, and the set of yarns or threads descending from the guide eye
above in a line coincident with the axis of the flyer is deviated from that line by
one pulley, led onto the barrel by a second pulley, led off the barrel by a third
pulley, and guided back into the axial line by a fourth pulley, so as to pass down
the tubular flyer spindle.
When cord-driving or band-driving is employed a single endless cord or band is
used for driving all or several of the flyers on a frame; and similarly a single
endless cord or band actuated by a separate drum or cylinder of suitable relative
size is used for driving all or several of the drawing or hauling barrels, each cord
or band being kept uniform and constant in tension by being led round a weighted
or other tension pulley at a convenient part.
Instead of cord or band driving, toothed driving gear may be employed. Any
suitable known stop-motion devices may be employed to stop the action of a spindle
on the failure or breakage of a yarn or thread, such devices being arranged to
move the driving cords or bands onto the loose pulleys and also to apply brakes to
the spindle and barrel; or any equivalent mechanism may be employed.
The guide eye which, as usual in machinery of the kind, is small and smooth so
as to compress and polish the yarns or threads, is by this invention held by a lever
which on a knot or other obstruction occurring acts on the stop-motion mechanism.
Dated this Third day of January 1895.
EDMUND HUNT,
Applicants' Agent.

page_text: .
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
arranged in connection with the flyer which twists them and delivers them to the
bobbin upon which they are wound; and our object is to improve and simplify the
drawing or hauling mechanism and the manner of combining it with the flyer.
As much of a twisting machine as is necessary to explain our invention is shown
on two accompanying sheets of explanatory drawings,
Figure, 1, on Sheet, 1, thereof being a plan and Figure, 2, a vertical section.
Figure, 3, on Sheet, 2, is a vertical section of a detail, and Figures, 4, and 5, are
respectively a plan and an elevation of other details.
In these drawings the same reference letters and numerals are used to mark the
same or like parts wherever they are repcated.
In machinery made with our improvements the flyer, A, is fixed on the bottom
end of a long tubular spindle, B, held in upper and lower bearings, C, and D, in
brackets, E, formed or fixed on the framing. In one modification of the driving
details shown in the drawings there are between the bearings, C, and D, a fast
pulley, G, and a loose pulley, H, for a driving cord, J, or it might be a band to
drive the flyer, A; and above the upper bearing, C, there are a fast pulley, K, and
a loose pulley, L, for a cord, M, or it might be a band to drive the drawing
or hauling mechanism. The upper fast pulley, K, is fixed on a barrel, K 1, fitted
to run loose on the flyer spindle, B; and it is this barrel which effects the drawing
operation. To the top of the flyer spindle, B, there is fixed a head provided with
four pulleys, B1, B2, B3, and B 4, and the set of yarns or threads, P, descending
from the guide eye, P 1, above in a line coincident with the axis of the flyer is
deviated from that line by one pulley, B 1, led onto the barrel, K1, by a second
pulley, B2, led off the barrel by a third pulley, B 3, and guided back into the axial
line by a fourth pulley, B 4, so as to pass down the tubular flyer spindle, B.
When cord-driving or band-driving is employed a single endless cord or band, J,
actuated by a drum or cylinder, J 1, and led round guide pulleys, J 2, is used for
driving all or several of the flyers, A, on a frame; and similarly a single endless
cord or band, M, actuated by a separated drum or cylinder, M 1, of suitable relative
size is used for driving all or several of the drawing or hauling barrels, K1, the
cord or band being led round guide pulleys, M 2, to the barrel pulleys, K, L, and
being kept uniform and constant in tension by being led round a pulley, M3, at a
convenient part, kept in tension by a cord, R 1, passing round a pulley, R 2, and
over pulleys, R 3, and R 4, to a weight, R 5.
Instead of cord or band driving, toothed driving gear may be employed. Any
suitable known stop-motion devices may be employed to stop the action of a
spindle (B) on the failure or breakage of yarn or thread, such being arranged to
move the driving cords or bands (J) and (M) on to the loose pulleys, and also to
apply brakes to the spindle (B) and barrel (K 1); or any equivalent mechanism
may be employed.
The guide eye which, as usual in machinery of the kind is small and smooth so
as to compress and polish the yarns or threads, P, is by this invention held by
a lever, S, centered on a pin, $ 1, in a bracket, S 2, on a vertical rod, S3, and
adjusted by a small helical spring, 'S 4. When a knot or other obstruction occurs

page_text: the lever, S, is depressed, and acts by a wire or rod, S 5, on a bellcrank catch, S 6,
which acts on the stop-motion mechanism, S 7.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The combination and arrangement of parts constituting the improved drawing
or hauling mechanism for twisting machinery of the kind to which the invention
relates substantially as hereinbefore described.
2. The arrangement of the driving cord or band with the driven and tension
pulleys and driving drums in which a single cord or band acts on several spindles
substantially as herein before described.
3. The combination of parts forming the stop-motion mechanism substantially as
herein before described and as shown in Figures, 4, and 5, of the accompanying
drawings.
Dated this Twenty-ninth day of August 1895.
EDMUND HUNT,
Applicants' Agent.