Improvements in Apparatus for Stopping the Rotation of Parts of Spinning and Twisting Machinery.
Year: 1896

page_text: Date of Application, 26th Oct., 1896
Complete Specification Left, 23rd July, 1897-Accepted, 28th Aug., 1897
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Stopping the Rotation of Parts
of Spinning and Twisting Machinery.
We PRINCE SMITH, of the Firm of Prince Smith & Son, of Burlington Shed,
Keighley, in the County of York, Machine Maker and SMITH AMBLER, of the
same place, Draughtsman in the employment of the said firin, do hereby declare the
nature of this invention to be as follows:-
This invention relates to Spinning and Twisting Frames, and has for its object to
facilitate the stopping, when required, of the rotation of the wharls by means of
which the tubes, attached thereto and carrying the bobbins onto which the yarn is
spun, or twisted are rotated.
In carrying out our invention we provide a two armed piece, or double lever,
centred, or fulcrumed, on a sleeve, or journal, capable of part rotation about the
lower part of the axis of the wharl and mounted on the lifter plate. One arm of this
lever, or part, is intended to be operated in a partially circular direction, so as to bring
into operation a tongue, blade or switch connected to the other arm of this lever
or part by the fingers of the operative, or otherwise.
This tongue, blade, or switch, is normally held in position out of the path of the
tape, or band, which continuously running drives, usually, two pairs of wharls; two
at each side of the machine, to one band.
When, however, the wharl, which requires attention, is desired to be stopped, a
partial rotation is imparted to the piece carrying the tongue, blade, or switch and
it is caused to insert this tongue, blade, or switch in between the tape, or band, and
the surface of the driven wharl, transferring the friction of the said tape, or band,
from the wharl to the tongue, blade, or switch and at the same time the same part,
by pressing on the surface of the wharl, serves to immediately bring the wharl to a
standstill whilst its driving tape, or band, continues its motion, but on the outside of
the interposed tongue instead of on the wharl.
The tongue may be mounted on its carrying arm with a limited capability of swing
motion by means of a slot and pin.
A detent, or catch, preferably carried by a spring, is mounted on the lifting plate
and serves to retain the partially rotatory part carrying the tongue arm in correct
operative position by its engaging a notch in the circular portion of the same.
By these means great efficiency of operation with simplicity and certainty of
action are secured: one piece of mechanism serving to take off the driving power
from and to stop the wharl of each spindle.
Dated the 26th day of October 1896

page_text: COMPLETE SPECIFICATION.
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Improvements in Apparatus for Stopping the Rotation of Parts
of Spinning and Twisting Machinery.
We PRINCE SMITH, of the Firm of Prince Smith and Son, of Burlington Shed,
Keighley, in the County of York, Machine Maker, and SMITH AMBLER, of the
same place, Draughtsman, in the employment of the said firm, 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 :-
This invention relates to spinning and twisting frames, and has for its object to
facilitate the stopping, when required, of the rotation of the wharls or other
equivalent parts by means of which the tubes attached thereto and carrying the
bobbins onto which the yarn is spun, or twisted are rotated.
Fig. 1 shows a front view of cur improved apparatus applied to a pair of wharls
Fig. 2 is a plan view of the same, with the wharls and spindles in section;
both wharls being rotated.
Fig. 3 shows the right hand half of Fig. 2 with the wharl stopped.
Figs. 4 and 5 show by front view and plan view respectively a portion of the
lifting plate and attached parts.
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Figs. 6 and 7 show by plan view and front view respectively the left hand lever, of
a pair of levers, to be described, and
Figs. 8 and 9 are like views of the right hand lever.
Fig. 10 shows an end view of Fig. 4.
Figs. 11, 12 and 13 show by two side views and front view respectively, a tongue,
blade, or switch to be referred to.
In carrying out our invention we provide a two armed piece, or double lever a,
centred or fulcrumed, on a sleeve, or journal b, and capable of part rotation on said
journal, through which passes the lower part of the axis of the wharl c. The sleeve b
is formed on a plate b¹ which is secured to the lifter bar d by means of clamps e and
bolts e¹. A pin b² on the sleeve b serves to prevent the lever a rising on said sleeve,
a slot a allowing the lever to be placed in position under the pin.
The arm a of the lever a, is intended to be operated in a partially circular
direction, by the fingers, of the operative or otherwise, so as to bring into operation
a tongue, blade or switch f, connected to the arm a³ of the lever a.
This tongue, blade or switch f, is normally held in position out of the path of the
tape or band g (see dotted lines) which continuously running drives, usually two, pairs
of wharls; two at each side of the machine, to one band.
When, however, the wharl, which requires attention, is desired to be stopped, a
partial rotation is imparted to the piece a carrying the tongue, blade, or switch f and
it is caused to insert this tongue, blade, or switch fin between the tape or band g
and the surface of the driven wharl c, as shown in Fig. 3, transferring the friction of
the said tape or band g, from the wharl to the tongue, blade, or switch f and at the
same time the same part f, by pressing on the surface of the wharl, serves to
immediately bring the wharl to a standstill, whilst its driving tape, or band
continues its motion but on the outside of the interposed tongue finstead of on the
wharl.
The tongue may be mounted on its carrying arm a³ with a limited capability of

page_text: swing motion by means of a slot f and pin a. A portion of the tongue is removed,
at f, to allow said tongue being placed on the arm a³.
A catch 63 on the plate ¹ serves to retain the partially rotatory lever a, carrying
the tongue arm a³, in position out of the path of the tape or band g. In order to
partially rotate the lever a so as to stop the wharl the arm a² may be raised, see
dotted lines Fig. 1, to pass the catch or stop b³. A stop as on the lever a abuts
against a stop 6 on the plate 61 when the tongue is operated to stop the wharl, as
shown in Fig. 3. In the left hand lever a, Fig. 2, the arm a³ abuts on a corresponding
stop 6 on the left hand plate 6¹.
By these means great efficiency of operation with simplicity and certainty of action
are secured: one piece of mechanism serving to take off the driving power from and
to stop the wharl of each spindle.
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. The construction and use of apparatus, for stopping the rotation of wharls, or
other equivalent parts, of spinning and twisting machinery, consisting of a partially
rotatable device brought into use by the attendant when desired whereby a tongue
or blade is inserted between the wharl, or other like part and the driving band or
like means and so stop the rotation of the desired wharl whilst allowing the band or
like driving means to continue its motion, substantially as described and shown by
the drawings.
2. The construction or arrangement and use of parts of stop motion or apparatus
for preventing the rotation of wharls or like parts of spinning and twisting
machinery as desired, substantially as and for the purpose described and shown by the
drawings.
WM. BROOKES & SON,
55 & 56 Chancery Lane, London, Agents for the Applicants.