Improvements in Spindles Used in Machines for Spinning, Re-doubling, and Twisting Silk and other Yarns, and in the We
Year: 1884

page_text: Improvements in Spindles Used in Machines for Spinning,
Re-doubling, and Twisting Silk and other Yarns, and in the
We ARTHUR NICHOLSON and JOHN HALL, both members of the Firm of
J. & J. Brough Nicholson and Company, of Leek in the County of Stafford, Silk
Manufacturers, do hereby declare the nature of said Invention for IMPROVEMENTS
IN SPINDLES USED IN MACHINES FOR SPINNING, RE-DOUBLING AND TWISTING SILK,
AND OTHER YARNS AND IN THE DRIVING AND STOP MOTIONS FOR THE SAID SPINDLES.
AND MACHINES, to be as follows:-
Our improvements consist, first, in the use of an elongated throwing spindle by
which we are enabled to dispense with independent driving for the spinning
bobbins, and secondly, in the addition of a self acting stop motion attached to each
throwing spindle separately whereby in the event of any one of the single threads
of yarn breaking the throwing spindle with its three spinning bobbins, doubling
roller, and throwing bobbin, are stopped, to allow the broken thread to be restored,
without waste, while all the rest of the machine continues working.
In performing the first part of our Invention we place the throwing spindle
directly over the centre of the driving wheel that gears into the bottom wheels that
are connected to the spinning bobbins and we dispense with the independent
driving. We make the throwing spindle sufficiently long to pass through the
said driving wheel and form a bearing below the said wheel: the latter is keyed
or fixed on the spindle and turns with it, and the bobbins are thus driven by the
spindle.
In performing the second part of our Invention we fit or form on the throwing.
spindle a worm that turns a worm wheel on a shaft on which is another worm that
turns a worm wheel on a shaft on which is a clutch the divided surfaces of which.
are helical or inclined and in the movable part of which is an annular groove into.
which enters a projection or projections at the end of a lever fixed on a shaft on
which is another lever that rests under the "throw off." We fit a balanced lever
near the clutch and on or in this lever we form projections or recesses, that will
engage with projections on the movable part of the clutch when the balanced lever
falis.
We fit drop wires (which we make in two parts) through which the threads
pass near the balanced lever, so that when a thread breaks or fails a drop wire will,
Price d

page_text: fall on the balanced lever and depress it so that it will engage with a projection on
the movable part of the clutch, and stop its rotation, when the part of the clutch
fixed on the shaft will by rotating force the movable part end ways and so move
the lever and cause the "throw off" to move the strap or band from the fast to the
loose pulley on the throwing spindle and at the same time a rod which we connect
to the "throw off" and to a clutch lever connected to a clutch in the doubling roller
stops the rotation of the doubling roller.
When the roller is moved to withdraw it from the clutch on the rotating
shaft it is brought against a fixed catch pin which causes it to stop instantly.
100
We ARTHUR NICHOLSON and JOHN HALL, both members of the firm of
J. & J. Brough Nicholson and Company; of Leek in the County of Stafford, Silk
Manufacturers, do hereby declare the nature of said Invention for IMPROVEMENTS
IN SPINDLES USED IN MACHINES FOR SPINNING, RE-DOUBLING, AND TWISTING SILK
AND OTHER YARNS AND IN THE DRIVING AND STOP MOTIONS FOR THE SAID SPINDLES
AND MACHINES, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
Our improvements consist first, in the use of an elongated throwing spindle by
which we are enabled to dispense with independent driving for the spinning bobbins
and secondly, in the addition of a self-acting stop motion attached to each throwing
spindle separately whereby in the event of any one of the single threads of yarn
breaking the throwing spindle, with its three spinning bobbins, doubling roller, and
throwing bobbin, are stopped, to allow the broken thread to be restored, without
waste, while all the rest of the machine continues working.
In performing the first part of our Invention we place the throwing spindle
directly over the centre of the driving wheel that gears into the bottom wheels that
are connected to the spinning bobbins and we dispense with the independent
driving. We make the throwing spindle sufficiently long to pass through the said
driving wheel and form a bearing below the said wheel: the latter is keyed or
fixed on the spindle and turns with it and the bobbins are thus driven by the
spindle.
In performing the second part of our Invention we fit or form on the throwing
spindle a worm that turns a worm wheel on a shaft on which is another worm
that turns a worm wheel on a shaft on which is a clutch, the divided surfaces of
which are helical or inclined and in the movable part of which is an annular groove
into which enters a projection or projections at the end of a lever fixed on a shaft
on which is another lever that rests under the "throw off." We fit a balanced lever

page_text: near the clutch and on or in this lever we form projections or recesses that will
engage with projections on the movable part of the clutch when the balanced lever
falls. We fit drop wires (which we make in two parts) through which the threads
pass near the balanced lever so that when a thread breaks or fails, a drop wire will
fall on the balanced lever and depress it so that it will engage with a projection on
the movable part of the clutch and stop its rotation, when the part of the clutch
fixed on the shaft will by rotating force the movable part end ways and so move
the lever and cause the "throw-off" to move the strap or band from the fast to tho
loose pulley on the throwing spindle and at the same time a rod which we connect
to the "throw-off" and to a clutch lever connected to a clutch in the doubling roller
stops the rotation of the doubling roller.
When the roller is moved to withdraw it from the clutch on the rotating shaft it
is brought against a fixed catch pin which causes it to stop instantly.
And in order that our Invention may be fully understood and readily carried into
effect we will proceed to describe the accompanying Sheet of Drawings, reference
being had to the figures and letters marked thereon.
Figure 1 is a front elevation. Fig. 2 a plan and Fig. 3 an end elevation of part of
a machine for spinning, re-doubling and twisting silk and other yarns made
according to our Invention. Figs. 4, 5 and 6 are a front elevation, a plan and a side
view respectively of the stop motion, on an enlarged scale. Fig. 7 is an end view
and Fig. 8 a front view of a doubling roller and its stop motion, and Fig. 9 is a
sectional view of Fig. 8.
Similar letters refer to similar parts throughout the several views.
The first part of our Invention is illustrated by Figs 1, 2, and 3 in which a is the
elongated throwing spindle the lower end of which revolves in a bearing in the rail b
and the upper end is supported in a bearing in the rail : the spindle a is driven
from the driving drum c by means of the strap c d is the driving wheel, keyed or
secured to the spindle a near the lower end and gearing into and driving the three
botton wheels è which are secured to and so drive the spindle e¹ of the spinning
bobbins f, thus rendering a second set of driving pulleys for the spinning bobbins f
unnecessary.
The second part of our Invention although shown in Figs 1, 2 and 3 is more
clearly and fully illustrated in Figs. 4 to 9.
:
On the spindle a is the worn a¹ which gears into and drives the worm wheel g¹
fixed on the shaft g on which is the worm g² that turns the worm wheel h¹ fast on
the shaft h on which is also fixed the half clutch i the teeth of which are helical
or inclined: the other half clutch ¹ has corresponding teeth and is free to slide on
the shaft h away from the part i; j is the lever one end of which rests in an annular
groove of the movable part and the other end is secured to the rocking shaft j
on which is also fixed the lever 2 which actuates the "throw off" as hereinafter
described is the balanced lever pivoted above the clutch and provided with a
projection are the drop wires made in two parts and through which the threads
pass near the lever k. When a thread breaks or fails, one of the drop wires 7 falls
on the front end of the balanced lever and depresses it so that the projection /¹
engages with one of the projections on the movable part of the clutch and
stops its rotation and as the fixed part i continues to revolve its inclined teeth force
the movable part endways and so move the lever j and rocking shaft thereby
raising the free end of the lever j which comes in contact with and lifts the end m¹
of the connecting rod m pivoted at m³ to a weighted lever n mounted and free to
rock on the shaft o: the lever n is prevented from rocking too far in either direction
by means of suitable catches and is provided with a runner or bowl n¹ which rests
under the driving strap c¹ and is fitted loosely on a stud secured to the lever. The
rod m is connected to one end of the lever p which is pivoted at p' and connected
at the other end to the boss of the movable part q of a clutch on which the doubling
roller r is mounted the other parts of the clutch is fixed on the revolving shaft t
which is driven by the train of gears from the driving shaft u as shown in
Figs. 1 and 3. When the weighted lever n rocks-whether moved by hand or lifted

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by the lever when a thread breaks or fails,-the runner n¹ lifts the strap c¹ from
the fast pulley a² to the loose pulley a³ and so stops the rotation of the throwing
spindle a and at the same time the connecting rod m being lifted by the lever ja
raises the end of the pivoted lever p. the other end of which moves the loose part q
of the clutch and the doubling roller 'r away from the part 8 of the clutch fast on
the revolving shaft t which thus ceases to drive the doubling roller r which is
instantly stopped by the projection 7 on it coming into contact with a catch pin p³
secured to the clutch lever p.
We also employ a drop wire v through which the thread passes on its way from
the doubling roller r to the bobbin w on the throwing spindle a this wire v, like
the other drop wires 1, is supported over the balanced lever k by the thread, until
the latter breaks or fails when the wire v falls, depresses the end of the balanced
lever and so actuates the throw-off in the manner already described.
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-
1. Driving each set of the spinning bobbins by incans of an elongated
throwing spindle, substantially in the manner and for the purposes herein shown
and described.
2. The use and application of an automatic stop motion for each throwing
spindle, substantially in the manner and for the purposes herein set forth..
3. The construction, combination and arrangement of parts forming the
improved stop motion, substantially as herein shown and described for the purposes