Year: 1887

page_text: Date of Application, 12th Oct., 1887
Complete Left, 26th Apr., 1888
Complete Accepted, 25th May, 1888
I HENRY BIRKBY ARUNDEL, of the firm of Arundel & Co. of Bromley Street, Ashley
Lane Manchester, in the County of Lancaster, Machine Makers, do hereby declare the
nature of the said invention, to be as follows :-
My invention relates to machines for doubling and twisting together threads of
fibrous materials, commonly termed "doubling frames" and its object is to prevent
waste arising when the threads break.
The object of my invention is to slightly lift the top roller away from the bottom
roller so that the threads will cease to be pinched between the rollers and drawn from
the bobbins when the threads break in passing to the spindle to be twisted.
My invention consists in a combination and arrangement or in combinations and
arrangements of mechanism, namely.-For each top roller in the machine there is a
thin plate or frame which has a hole or space in it through which the top roller can
work clear, this thin plate or frame on two of its edges rests upon projections from
the cap bars, and its underside is in all positions clear of the surface of the bottom
roller.
The said thin plate or frame is arranged to be slided to and fro in a direction at a
right angle to the axes of the rollers, and when slided sufficiently forward it will
come under and lift the top roller clear from the bottom roller, the top roller resting
upon the upper surface of the thin plate or frame when pushed forward; and as the
top roller passes or may pass over a slight elevation on the thin plate, the latter is
held from moving back too easily, except when released, when the threads are pieced
and the top roller is lifted to allow the threads to be placed between the top and
bottom rollers. This thin plate or frame, (in place of the slight elevation thereon)
has or may have a projection to catch when moved forward upon one of the projections
from the "
cap bar" supporting the thin plate or frame.
The thin plate or frame has a projection or bearing on each side for the pivots
of a forked lever, one arm of the fork is on one side, and the other arm on the other
side of the top roller.

page_text: Between the two bent ends of the arms of the forked lever, a bar or roller of glass,
pot or other suitable material is carried, and the threads after passing the delivery
rollers go over this bar, and the tension of the threads in passing to the bobbin on
the spindle pulls down that end of the forked lever, and lifts a projection or bent
end at the other end of the forked lever (which end is the heaviest) clear of a
constantly oscillating bar on arms on a shaft, or a reciprocating rod or bar or a
constantly rotating ratchet or other suitable shaft or bar passing from end to end
of the machine. But when the threads break the inner end of the forked lever comes
in the way of the oscillatory or rotary part and this forces the forked lever and
with it the thin plate or frame forwards, and the latter under the top roller, and
thus lifts it and stops the drawing off of the threads from the bobbins.
When the machine is stopped the threads between the rollers and the spindles
may become slack, in which case the heavy ends of the forked levers will bo acted
upon to cause the top rollers to be lifted and when the machine is started again the
threads will be broken. In order to prevent this, I arrange so that the oscillations
or rotations of the bar or shaft shall be stopped when the machine is stopped and
started a little after the machine is started, or I arrange a thin plate to come
under and hold up the heavy ends of the forked levers, just before the machine
is stopped and withdraw the thin plate after the machine has started.
Either of these arrangements for stopping and starting may be carried into
effect by a variety of means in connection with the belt guide for stopping and
starting the machino.
1
1

page_text: Twisting Fibrous Materials.
I, HENRY BIRKBY ARUNDEL of the firm of Arundel & Co. of Bromley Street, Ashley
Lane, Manchester, in the County of Lancaster Machine Makers, 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 :—
My invention relates to machines for doubling and twisting together threads of
fibrous materials commonly termed "doubling frames" and its object is to prevent
waste arising when the threads break, between the rollers and the spindle.
The object of my invention is to slightly lift the top roller away from the bottom
roller so that the threads will cease to be pinched between the rollers, and drawn from
the bobbins, when the threads break in passing to the spindle to be twisted.
My invention consists in a combination and arrangement or in combinations and
arrangements of mechanism, namely-For each top roller in the machine there is a
thin plate or frame, which has a hole or space in it through which the top roller can
work clear, this thin plate or frame on two of its edges rests upon projections
from the cap bars, and its underside is in all positions clear of the surface of the
bottom roller.
The said thin plate or frame is arranged to be slided to and fro in a direction at a
right angle to the axes of the rollers, and when slided sufficiently forward it will come
under and lift the top roller clear from the bottom roller, the top roller resting upon
the upper surface of the thin piate or frame when pushed forward, and as the top
roller passes or may pass over a slight elevation on the thin plate, the latter is held from
moving back too easily, except when released when the threads are pieced and
the top roller is lifted to allow the threads to be placed between the top and bottom
rollers.
This thin plate or frame (in place of the slight elevation thereon) has or may have a
projection to catch when moved forward upon one of the projections from the ". cap
bar" supporting the thin plate or frame.
The thin plate or frame has a projection or bearing on each side for the pivots of a
forked lever, one arm of the fork is on one side, and the other arm on the other side of
the top roller.
Between the two bent ends of the arms of the forked lever a bar of glass, pot or
other suitable material is carried, and the threads after passing the delivery rollers, go
over this bar, and the tension of the threads in passing to the bobbin on the spindle
pulls down that end of the forked lever and lifts a projection or bent end at the other
end of the forked lever (which end is the heaviest) clear of a constantly oscillating bar
on arms on a shaft, or a reciprocating rod or bar, or a constantly rotating ratchet,
or other suitable shaft or bar, passing from end to end of the machine..
But when the threads break the inner end of the forked lever comes in the way of

page_text: 1
the oscillatory or rotary part and this forces the forked lever and with it the thin
plate or frame forwards, and the latter under the top roller, and thus lifts it and stops
the drawing off of the threads from the bobbins.
When the machine is stopped the threads between the rollers and the spindles may
become slack, in which case the heavy ends of the forked levers will be acted upon to
cause the top rollers to be lifted, and when the machine is started again the threads
will be broken-In order to prevent this, I arrange so that the oscillations or rotations
of the bar or shaft shall be stopped just before the machine is stopped, and started a
little after the machine is started, or I arrange a thin plate to come under and hold up
the heavy. ends of the forked levers, just before the machine is stopped and withdraw
the thin plate after the machine has started.
Either of these arrangements for stopping and starting may be carried into effect
by a variety of means in connection with the belt guide for stopping and starting the
machine.
Fig. 1-is an elevation of a roller stand with the upper and lower rollers and other
parts shown in section.
Fig. 2 is a plan view of the thin sliding plate and detector lever.
a is one of the roller stands in which there are bearings for the journals of the ordinary
lower constantly rotating roller b. c is the "cap bar" held in the roller stands, in
which cap bar there are the ordinary slot bearings for the pivots of the ordinary upper
weighting roller d.
e is the ordinary traverse or guide rail over which the threads to
be doubled" and twisted pass from the bobbins in the direction shown by the
peculiar dotted line in the ordinary manner between the lower roller b and the
weighting roller d, which pinches the threads between the rollers and delivers them
to be twisted at the required speed.
From the rollers 6 and d the threads pass over a bar (hereinafter referred to) and
then to the ordinary guide wire and then to the flyer on the spindle and to the bobbin
thereon in the ordinary manner.
There is a thin plate of metal which is or may be of the shape shown best in fig. 2,
the two side edges of its wide end rest upon short projections c¹ from a projection from
the cap bar c (one projection c¹ for each end of the roller d) and at the narrow end
this thin plate rests in a notch in the bar part of the cap bar e as shown in fig. 1.
Thus arranged the thin plate can slide to and fro in its lengthway.
The thin plate f extends beyond each end of the top roller d which can work clear
through a hole formed in the thin plate without touching it.
This thin plate fit will be seen is in a slightly inclined position and its lower side
is in all positions quite clear and thus does not come or rub against the lower
.roller b.
When the thin plate is slided forwards towards the front of the doubling frame
its edge comes under and lifts the upper roller d (and thus stops its rotation) and the
rotary momentum of the latter before it stops helps to some extent to draw the
plate in that direction, and into a hollow in the upper face of the thin plate into
which the periphery of the upper roller d sinks and thus helps to draw and retain
the plate in that position (in which the projection g* hereinafter referred to is clear of
the rotating wings h¹ also hereinafter referred to) with the upper roller d clear of the
lower roller consequently the threads are not drawn from the bobbins and delivered
to be twisted.
On two sides of the thin plate there are upward projections f³ having each a
V bearing to receive the pivot g of a detector lever or partly balanced frame g which
is of the form best shown in fig. 2. It is similar to a two pronged fork, the two legs
of the fork are wide enough apart to be clear of the ends of the top roller d.
The two prongs g at the front have projections g2 towards each other to enter the
holes in the ends of a bar or tubes 9 of pot, glass or other suitable material for the
wet threads to pass over.
That end of the partly balanced lever furthest from the front of the doubling
frame has a projection g. downwards, which works clear in a notch for it in the end of
the thin plate f....

page_text: The detector lever g is so balanced that the downward projection 9* is the heaviest
end and will descend when the pull of the threads passing over the bar g³ does not
depress that end of the detector lever and hold the other end with the downward
projection g' in the position shown in fig. 1 where it is clear of the wings or projec-
tions on a shaft h rotating in the direction pointed by the arrow on fig. 1, in
journals formed in the stands a.
Should the downward projecting end 9 of the lever fall from the absense of the
threads one of the wings h¹ comes against it and pushes it forward against the thin
plate until clear of the rotating wing h when the thin plate will be forced under
the top roller d and will thus lift it clear of the lower roller b as hereinbefore
explained.
When the threads are pieced the thin plate f is slided back until the edges f* come
against the front side of the bar part of the cap bar c, as shown, in fig. 1, and the
detector lever g is depressed at its front end for a moment until the pull of the
threads hold it down with the projection 9* clear of the wing ' of the rotary
shaft h.
and detector lever g for each
a doubling frame illustrating the
It will be understood that there is one thin plate
upper roller d and spindle in the doubling frame.
Fig. 3 is a sectional elevation of the end frame of
mode of stopping and starting the rotary shafts h.
ax is the framing, i represents the fast, and the loose, driving pulley, a² the
bracket upon which the strap or belt guide slides to and fro to traverse the belt on
pulleys i and i, a³ is a boss or bracket secured to the framing a*, and this boss forms
the bearing for a short shaft j upon one end of which there is a spur wheel j¹ having
a clutch fork groove in its boss, and a one projecting tooth or finger j
This spur
wheel is free to rotate upon the end of the short shaft ; and can slide
to and fro end ways thereon, and to prevent it from moving too far either way there
is a pin j³, and collar *.
This spur wheel is in gear with or forms part of a train of wheels between the
tin roller shaft and thread rollers 6 fig. 1.
There is a double grooved pulley fast on the inner end of the short shaft ; for
two endless bands, one band works on and drives a grooved pulley on the end of the
shaft h fig. 1 on one side of the frame, and the other band drives the corresponding
pulley on the other side of the frame for the shaft / fig. 1.
When the spur wheel j' is in the position shown in fig. 3 the tooth or finger j³
upon it is driving a tooth or finger formed upon the collar j on the short shaft.
When the toothed wheel j¹ is slided end ways upon the short shaft towards the pin j³
the clutch fingers are brought out of contact or gear, and the shafts 1, of fig. 1 (one
shaft on each side of the frame) stop rotating and when the wheel ¹ is slided in the
contrary direction the rotating of the shafts h (fig. 1) begins-The spur wheel j¹
always remains in gear with its driving wheel, and it is moved to and fro by a clutch-
fork lever k having its fulcrum k¹ on a bracket a secured to the framing-There is
an arm k² from the lever k, which carries an adjustable set screw k³ the head of which
comes against the side of the belt traversing guide ³.
One end of a spring k is attached to the arm k and the other end to a projection
from the bracket a*, so that this spring acts to pull the clutch fingers and
apart and to stop the rotation of the short shaft, and consequently the shafts h
(fig. 1).
It will be seen that the first part of the movement of the belt guide to traverse
the belt from the fast (i) to the loose (¹) pulley puts the toothed clutch fingers out
of gear before the rollers b, fig. 1, stop, and the last part of the movement of the
belt guide to start the frame, also starts the spindles and rollers b, before the
clutch fingers j and j come into gear.
The preventing of the bent ends * fig. 1 of the detector levers being acted upon
by the rotary wings ¹ fig. 1. when the doubling frame is being stopped and when it
is being started may be effected in a variety of ways and I do not limit myself to

page_text: any particular arrangement but have described a simple and inexpensive arrangement
which I prefer to employ.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:
1. In doubling and twisting machines for stopping the delivery of the threads to
be twisted when the threads break between the rollers b and d and the spindles, the
combination of a sliding plate (ƒ) which does not touch the lower roller b, for lifting
the upper roller d with a detector lever substantially as hereinbefore described and
illustrated by the drawings.
.2. The combination and arrangement of mechanism substantially as and for the
purpose hereinbefore described and illustrated by figs. 1 and 2 of the drawings.
3. In doubling frames having mechanism for stopping the delivery of the threads
to be twisted when they break between the rollers b and d and the spindles, by
means of detector mechanism acted upon. by an oscillatory or rotating shaft, arrange-
ments for preventing the detector levers or other equivalents being acted upon to
cause the upper rollers d to be lifted, just before stopping and .starting the spindles
and rollers 6 into motion substantially as hereinbefore described.
4. The combination and arrangement of mechanism substantially as and for the
purpose hereinbefore described and illustrated by fig. 3 of the drawings.
Dated this 25th day of April 1888.
PETER J. LIVSEY,
Agent.