Improvements in Doubling and Twisting Machinery used in the Production of Yarns or Threads of Fibrous Substances.
Year: 1898

page_text: Application, 29th Mar., 1898
Complete Specification Left, 30th Jan., 1899-Accented
application, 29th Mar., 1898
Complete Specification Left, 30th Jan., 1899-Accepted, 4th Mar., 1899
UATION.
Improvements in Doubling and Twisting Machinery used in the
Production of Yarns or Threads of Fibrous Substances.
We, JESSE COOKE, of the Firm of Messrs. Ramsden Brothers, of Market Stree
Works, Keighley, in the County of York, Machine Makers, and NEWTON MURGATROY
BROWN, of 41, Spring Gardens Road, Heaton, Bradford, also in the County of York
Machine Maker, do hereby declare the nature of this invention to be as follows, tha
5 is to say -
It relates firstly to an improved method of coupling the vertical draw drum in
what is known as a "two-fold twister" to its motor, and consists in so constructing
and arranging said mechanism as to enable it to perform its functions with greater
certainty than when constructed as heretofore.
The second part of our invention relates to improved stop-motion mechanism for
use in connection with machinery for doubling and twisting together two and a
greater number of threads of yarn, and consists in constructing and arranging parts
in connection with the driving band or tape whereby the spindles in said machinery
are effectively put into operation and as readily arrested in their motion by less com-
plicated and more durable mechanism than that heretofore employed.
In carrying the first part of our invention into effect, we so form or construct the
clutch lever for coupling the draw-drum to its motor so that one of its arms will lay
hold of projections radiating from the wheel forming said motor, while its other arm
projects vertically for contact with the appropriately formed end of the trap lever,
which is preferably of a bifurcated shape, with an incline and stop-part formed
thereon, to perform the functions desired, although other than this bifurcated form
of lever may be employed and made to act as desired.
By employing this formation of clutch lever, the forces acting thereon find their
resultant in a different part of the lever and its bearings to the advan a
ficial working of said lever or of the whole mechanism.
je and bene-
"driving
To attain the object of the second part of our invention instead of the "
band or tape being made to pass around the wharle or wharve on the spindle, we
nake it take over a supplementary or idle wharle which is placed a little to the side
nd front of the ordinary wharle.
This idle wharle is mounted on bearings which allow it to oscillate in the vertical
lane, in order to enable it to be brought so that its driving cord or tape will be
ressed against the wharle on the ordinary spindle by which it may transmit motion
this latter whenever desired, while when moved out of this said position its said
rd or tape will be clear of said whale and so the motion of the spindle will be
scontinued.
The bearings upon which the idle wharle is mounted, are arranged to be operated
the bar or lever carrying the detector wires in the well known manner, with the
ception that the coupling of said bar or lever to the parts through which it
nsmits motion to the idle wharle, is effected through the medium of a spring so
t its actions thereon may compensate for the variations in the tension N
[Price 8d.]

page_text: driving cord or tape while all the parts are so formed as to have as few pivotal
connections as possible.
The parts constructed and arranged as above described may be used in connection
with doubling and twisting machinery wherein the draw drums or rollers are arranged
horizontally as well as in connection with that wherein said drums are arranged to
rotate vertically.
"
When the mechanism above described is employed in connection with what are
known as 66
flyer doubling and twisting machinery, we preferably employ an appro-
priately formed brake piece or spring which we secure on the oscillatory bearings
carrying the idle wharle so that as these latter are moved into and out of position for
causing motion to be transmitted to the spindle, said brake will be moved out of and
into position for acting upon the same spindle.
Dated thin 8th day of Morab 1908
Improvements in Doubling and Twisting Machinery used in the
Production of Yarns or Threads of Fibrous Substances.
We, JESSE COOKE, of the Firm of Messrs. Ramsden Brothers, of Market Street
Works, Keighley, in the County of York, Machine Makers, and NEWTON MURGATROYD
BROWN, of 41, Spring Gardens Road, Heaton, Bradford, also in the County of York,
Machine Maker, 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 :-
It relates firstly to an improved method of coupling the vertical draw drum in what
is known as a "two fold twister" to its motor, and consists in so constructing and
arranging said mechanism as to enable it to perform its functions with greater
certainty than when constructed as heretofore.
The second part of our invention relates to improved stop-motion mechanism for
use in connection with machinery for doubling and twisting together two or a greater
number of threads of yarn and consists in constructing and arranging parts in con-
nection with the driving band or tape whereby the spindles in said machinery are
effectively put into operation, and as readily arrested in their motion by less
complicated and more durable mechanism than that heretofore employed.
In the accompanying sheets of drawings which are illustrative of our invention :-
Fig. 1 is a sectional end elevation of the front part of a twisting frame, showing
the draw drum and parts in connection with it as made in accordance with our
invention.
Fig. 2 is a plan of certain of the parts shown by Fig. 1.
Figs. 3 and 4 are drawings in detail of parts hereinafter referred to.
Fig. 5 is an elevation of a part of the device shown by Fig. 2.
Fig. 6 is plan of a portion of our improved spindle driving mechanism.
Fig. 7 is sectional end elevation showing our spindle driving mechanism and parts
mounted in connection therewith.
Fig. 8 is a front elevation of the mechanism shown by Fig. 7.
In carrying the first part of our invention into effect, we so form or construct the
clutch-lever a for coupling the draw-drum 6 to its motor c that its arm a¹ will lay

page_text: hold of one or other of the projections c¹ on the wheel c which is its motor, while its
other arm a projects vertically for contact with the appropriately formed end d¹ of
the trap-leverd, which is preferably of a bifurcated shape as shown by Fig. 2, with its
inner edge 3 made eccentrically with the centre of the wheel c to cause said arm a²
to force or move the arm at out of contact with the projections c¹, when this lever d
has its end d' depressed to be in the path of motion of said lever arm a in a manner
well known, the inclined inner edge 3 effecting this even should the end d¹ not be
bifurcated but in a single part, however we prefer the bifurcated form which enables
us to rotate the drum in either direction and yet its acts equally well in each of such
> directions.
By employing this formation of levers a and d the forces acting upon them are
counteracted in a better and more advantageous manner than heretofore.
To attain the object of the second part of our invention, instead of the driving band
or tape f being made to pass around the wharle g on the spindle h, we make it take
around a supplementary or idle wharle k which is placed a little to the side and front
of the ordinary wharle g.
g
This wharlek is mounted on bearings m pivotted upon the bracket n secured to
the machine's framework p, said bearings m allowing the wharlek to oscillate in the
vertical plane, in order to enable it to be brought so that its driving cord or tape f
will be pressed against the wharle g by which it may transmit motion to said wharle
whenever desired, while when moved out of this said position its said cord or tape f
will be clear of said wharle g, and so the motion of the spindle h will de discontinued.
Its two positions being shown in Fig. 8, the central one being out of position
while the outside ones are in position for transmitting motion to their respective
spindles h.
The bearings m upon which the idle wharl is mounted are arranged to be
operated by the bar or lever q carrying the dectector wires q in the well known
manner, (such actions being that on the falling of a detector wire through the
breakage or failure of its respective thread, it comes into the path of motion of the
wiper t thus enabling said wiper to move the part q through the said detector q¹,
clear of its catch piece u, on which said part q is raised by the spring v so that the
rollers w, w are separated, and the delivery of the yarn is stopped) with the exception
that the coupling of said bar or lever to the parts through which it transmits
motion to the wharle, is effected through the medium of a spring r, so that its
actions thereon may compensate for the variations in the tension of the driving cord
or tape f, while all the parts are so formed as to have as few pivotal connections as
possible.
The parts constructed and arranged as above described may be used in connection
with doubling and twisting machinery wherein the draw-drums or rollers are arranged
horizontally as shown in the drawings Figs. 6, 7 and 8, as well as in connection with
that wherein said drums are arranged to rotate vertically as shown by Figs. 1
and 2.
When the mechanism above described is employed in connection with what are
known as "flyer" doubling and twisting machinery, I preferably employ an
appropriately formed brake piece or spring which I secure on the oscillatory bearings
n carrying the wharle k, so that as these latter are moved into and out of position
or causing motion to be transmitted to the spindles h, said brake will be moved out
f and into position for acting upon the same spindle, said brake being of a construc-
ion old and well known, such as that shown in broken lines at S Fig. 8.
Having now particularly described and ascertained the nature of our said in-
ention and in what manner the same is to be performed, we declare that what we
laim is :-
1. In machinery of the class described, the trap-lever (d) and clutch lever (d)
onstructed and arranged to operate in combination substantially as herein
pecified.
2. In driving devices for spindles for machines of the class described, an idle wharle

page_text: and means for operating same to move the driving band substantially
specified.
n
as herein
J. COOKE
N. M. BROWN
Per Samuel Hey,
Agent.