Improvements in Machinery or Apparatus for Doubling and Twisting Yarns or Threads.
Year: 1888

page_text: Date of Application, 11th May, 1888
Complete Specification Left, 11th Feb., 1889
Complete Specification Accepted, 16th Mar., 1889
PROVISIONAL SPECIFICATION.
Improvements in Machinery or Apparatus for Doubling and Twisting
Yarns or Threads.
We GEORGE HENRY HOLDEN of Carr Street Manchester in the county of Lancaster
Machinist and JOHN ASHWORTH of the same place Manager for the above, do
hereby declare the nature of this invention to be as follows:
Our invention relates to machines for doubling and twisting yarns or threads
and consists in arrangements of machinery or apparatus for "stopping" the spindle
and the action of the draw or drag roller used therewith when a yarn or thread
or yarns or threads becomes or become broken or absent.
"
According to our invention upon a shaft extending the entire length of the
machine and receiving rotary motion by means of a strap or band we mount
"driving" pulleys in contact with each of which at times is placed a "driven "
pulley or "driven" pulleys which pulley or each of which pulleys is secured upon.
an axle mounted so as to be capable of being rotated in a frame or bracket in which
the said "driven pulley is mounted. The frame or bracket aforesaid passes through
a bar or guide-rail extending lengthwise of the machine or the said frame or bracket
is guided by means of brackets secured to the bar or guide-rail before referred to or
the frame or bracket before mentioned may be hinged or jointed to a rail extending
lengthwise of the machine. Fast with the "driven " pulley is a grooved pulley around
which passes a band by means of which rotary motion is transmitted to the spindle
to be "driven." We cause one of the draw or drag rollers to be carried upon one
end of a lever capable of being turned upon a pivot the other end of which lever is
jointed to the frame or bracket in which is mounted the "driven" pulley before
mentioned. The yarn or thread or each of the yarns or threads passes through the
eyes of suitable "detector mechanism" carried by a lever capable of being turned
upon a pivot and provided with a catch by means of which the frame or bracket
before mentioned is so held that the circumference of the "driven" pulley will be
held in contact with the circumference of the "driving" pulley so that rotary motion
will be transmitted to the "driven" pulley and to the spindle.

page_text: When a yarn or thread or yarns or threads becomes or become broken or absent a
wire or wires or lever or levers of the "detector mechanism" will descend and
arriving in the path of a revolving or reciprocating wiper or cam will withdraw the
catch before referred to and thereby allow the "driven " pulley to be moved by means
of a spring or lever and weight or pulley and weight out of contact with the pulley
by which it is normally driven and so "stop" the spindle and will also separate the
draw or drag rollers thus arresting the delivery of the yarn or thread or yarns or
threads.
In order to "stop" the spindles quickly we cause the spring or weight before
referred to cause the "driven" pulley after being moved out of contact with the
"driving" pulley to be brought into contact with a brake. When the yarn or thread
or yarns or threads has or have been "pieced "the lever above mentioned is raised
and placed in position for being again supported by the catch above mentioned where-
upon the "driven " pulley will be placed in contact with the "driving" pulley and
rotary motion will be again transmitted to the spindle.
Instead of employing a number of separate "driving" pulleys as above described
we propose to use in some cases one long drum or cylinder or long drums or
cylinders.
In some cases we form the "driving" pulley and "driven" pulley as grooved
pulleys.
We also propose to in some cases in order to increase the driving power of the
pulleys above mentioned, make the "driven pulley" in two portions and cause the
two portions of the pulley to be pressed towards each other by means of screws or
springs.
If desirable or necessary we in some cases secure to either or both of the portions
of the "driven pulley" before mentioned rings or surfaces of india-rubber, leather or
other suitable material such india-rubber, leather or other suitable material increasing
the adhesion between the " driving" and "driven "pulleys.
33
We in some cases form a groove around the "driven" pulley in which groove we
place a band of india-rubber leather or other suitable material so that when the
"driven" pulley is placed in contact with the " driving pulley the aforesaid band
of india-rubber, leather or other suitable material will increase the adhesion between
the surface of the "driven" pulley and the surface of the "driving" pulley.
In some cases instead of mounting one of the draw or drag rollers upon the lever
to which is jointed the frame or bracket in which the" driven " pulley is mounted
we mount one of the draw or drag rollers upon a lever capable of being turned upon
a pivot and we connect such lever by means of a lever or levers turning upon a pivot
or pivots to the frame or bracket in which is mounted the "driven " pulley previously
mentioned.
By our invention we are able to drive the spindles of doubling and twisting
machines at a "high speed "and yet be able to quickly, stop such spindles when a
yarn or thread or yarns or threads becomes or become broken or absent.
Dated this Tenth day of May 1888.

page_text: COMPLETE SPECIFICATION.
Improvements in Machinery or Apparatus for Doubling and Twisting
Yarns or Threads.
Wo GEORGE HENRY HOLDEN of Carr Street, Manchester, in the County of
Lancaster, Machinist, and JOHN ASHWORTH of the same place, Manager for the above
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:-
Our invention relates to machines for doubling and twisting yarns or threads and
consists in arrangements of machinery or apparatus for "stopping" the spindle and
the action of the draw or drag roller used therewith when a yarn or thread or yarns
or threads becomes or become broken or absent.
"
"
or
According to our invention upon a shaft extending the entire length of the machine
and receiving rotary motion by means of a strap or band we mount "driving
pulleys in contact with each of which at times is placed a
"driven pulley
driven pulleys" which pulley or each of which pulleys is secured upon an axle
mounted so as to be capable of being rotated in a frame or bracket in which the said
"driven "pulley is mounted-The frame or bracket aforesaid passes through a bar
or guide-rail extending lengthwise of the machine or the said frame or bracket is
guided by means of brackets secured to the bar or guide-rail before referred to or
the frame or bracket before mentioned may be hinged or jointed to a rail extending
lengthwise of the machine-Fast with the "driven" pulley is a pulley around which
passes a band by means of which rotary motion is transmitted to the spindle to be
driven-We cause one of the draw or drag rollers to be carried upon one end of a
lever capable of being turned upon a pivot, the other end of which lever is jointed to
the frame or bracket in which is mounted the "driven" pulley before mentioned―
The yarn or thread or each of the yarns or threads passes through the eyes of
suitable detector mechanism" carried by a lever capable of being turned upon a
pivot and provided with a catch by means of which the frame or bracket before
mentioned is so held that the circumference of the "driven" pulley will be held in
contact with the circumference of the "driving" pulley so that rotary motion will be
transmitted to the "driven pulley and to the spindle-When a yarn or thread or
yarns or threads becomes or become broken or absent a wire or wires or lever or
levers of the "detector mechanism" will descend and arriving in the path of a revolving
or reciprocating wiper or cam will withdraw the catch before referred to and thereby
allow the "driven "pulley to be moved by means of a spring or lever and weight or pulley
and weight out of contact with the pulley by which it is normally driven and so
stop the spindle and will also separate the draw or drag rollers thus arresting the
delivery of the yarn or thread or yarns or threads in order to "stop" the spindles
quickly we cause the spring or weight before referred to to cause the "driven "
pulley after being moved out of contact with the "driving" pulley to be brought into
,ג

page_text: contact with a brake. When the yarn or thread or yarns or threads has or have
been "pieced" the lever above mentioned is raised and placed in position for being
again supported by the catch above mentioned whereupon the "driven" pulley will be
placed in contact with the "driving" pulley and rotary motion will be again
transmitted to the spindle.
Our invention is illustrated by the accompanying drawing in which Fig. 1 is a cross
section of so much of a twisting or doubling machine as is requisite to illustrate our
invention and Fig. 2 is a plan of a portion of that which is shown in Fig. 1.
L
The same letters of reference are applied to corresponding parts in both figures.
a is a shaft extending the entire length of the machine and receiving rotary motion
by means of a strap or band-Upon the shaft a we mount "driving pulleys" b, c is
a rail extending lengthwise of the machine-To the rail c we secure a bracket d. The
bracket d is provided with a stud d' upon which so as to be free to be turned thereon
is mounted a lever e-The lever e is provided with a pin el upon which and free to
be turned thereon is mounted a frame or bracket f-Carried by the frame or bracket f
and free to be rotated therein is an axle g¹ fast upon which is mounted the "driven"
pulley g Also fast upon the axle g¹ is a pulley which at times by means of the
endless band or strap transmits rotary motion to the spindle k-The frame or bracket f
is formed with a projecting part provided with a set screw f² one end of which
rests against an inclined part d² formed upon or secured to the bracket d-Passing
through one arm of the lever e is the lower end of a rod upon which is a spring m
one end of which abuts against the said arm of the lever e while the other end of such
spring m abuts against a nut capable of being screwed upon the rod 7. Secured
to the upper end of the rod 7 is a collar n provided with a pin o which projects into a
slot pl formed in a bell-crank-lever p mounted upon a pin or pivot p² carried by and
capable of being turned in a bracket 7 secured to a rail extending lengthwise of the
machine. The arm p³ of the bell-crank-lever p is provided with jaws in which are
situated the pivots si of a draw or drag rollers which at times rests upon and is
rotated by a draw or drag roller t mounted fast upon a shaft t¹ extending lengthwise
of the machine, which shaft t¹ receives rotary motion in any convenient manner-
Secured to the bracket 7 are arms q' formed with jaws which support by means of the
pivots a frame u. Carried by the frame u are levers v capable of at times turning
upon pivots mounted in recesses formed in the frame u. One arm of each of the
levers is formed with an eye or loop and the other arm of the said lever vacts
as a partial counterpoise to the arm 2. To cach of the arms 2 is jointed the upper
end of a wire w which wire w is "cranked" and passes through holes which act as
guides and which holes are formed in cross-bars formed in the frame u. Secured
to the frame u is a rib u³ which at times is situated beneath and supports a projecting
part n secured by a set screw to a projection formed on the collar n-a is a shaft
extending lengthwise of the machine which shaft receives rotary motion in any con-
venient manner-Fast upon the shaft a¹ is a wiper or came which at times acts upon
the wires w.
v
"
The yarns or threads A to be "doubled or "twisted" are passed each through one
of the eyes or loops 3 and then through a guide-wire y secured to a rail y extending
lengthwise of the machine.-In the position of the parts shown in the drawing
twisting or doubling is taking place. The "driven" pulley g being in contact with the
driving" pulley brotary motion will be imparted to the pulley g; axle g¹ and
pulley which by means of the endless band or strap j, will transmit rotary motion
to the spindle and bobbin B. Upon any one of the yarns or threads A becoming
broken or absent the lever previously supported by such yarn or thread will turn
upon its fulcrum in the direction indicated by the arrow C and by so doing cause the
wire w jointed to such lever to descend into the path of the wiper or cam which
rotates in the direction indicated by the arrow D, so that the frame u will be turned
upon its pivots u¹ in the direction indicated by the arrow E and caused to withdraw
the rib from beneath the part n¹. The rod being then no longer supported, will
descend and allow the lever e to turn upon the stud d' in the direction indicated by
the arrow F and cause the frame or. bracket to turn in the direction indicated by

page_text: 23
the arrow G, thereby moving the "driven" pulley g out of contact with the "driving
pulley b so as to "stop" the rotation of the spindle & and bobbin B. The turning of
the frame or bracket will cause the end of the set screw to travel along the
inclined part d' of the bracket d so as to allow the tension of the band or strap to
turn the frame or bracket in the direction indicated by the arrow E, the turning of
the frame or bracket fin such direction assisting in the separation of the "driven
pulley g from the "driving" pulley b. The descent of the rod will by means of the
pin o and slot p cause the bell-crank-lover p to turn in the direction indicated by the
arrow J and by so doing remove the draw or drag roller s out of contact with the con-
stantly rotating draw or drag roller t. Upon the separation of the draw or drag
rollers from the draw or drag roller yarn or thread will cease to be delivered by
such draw or drag rollers s, t to the bobbin B.
When the broken or absent yarn or thread has been pierced or replaced, the
attendant turns the bell-crank-lever p in a direction opposite to that indicated by the
arrow J, by means of the handle p* formed on the bell-crank-lever p. The turning of
the bell-crank-lever p in the direction opposite to that indicated by the arrow J will
cause the draw or drag rollers to be placed in contact with the draw or drag roller t
so that yarn or thread will be delivered to the bobbin B. The turning of the bell-
crank-lever p in the direction opposite to that indicated by the arrow J will raise the
rod and will turn the lever e in the direction opposite to that indicated by the
arrow F and turn the frame or bracket fin a direction opposite to that indicated by
the arrow G so causing the "driven" pulley g to be pressed into contact with the
driving" pulley 6 so as to cause the "driven "pulley g to be rotated. The turning
of the frame or bracket f will by carrying the end of the set screw along the
inclined part 2 place the band or strap in a state of tension-The raising of tho
rod will raise the part n' and allow the rib u to again pass beneath the part n¹.
When the attendant releases the handle the projecting part a rests upon the rib u³.
By the position of the nut upon the rod being altered the spring m may be caused
to press with more or less force upon the lever e so that the "driven" pulley g may
be pressed into contact with the driving" pulley 6 with more or less force as may
be desired By the set-screw being turned the tension of the band or strap j
may be adjusted-The circumference of the driving pulley is shown as being formed
as a groove, the edge of the "driven" pulley g being formed rounded but such
pulleys b. g. may be formed with cylindrical circumferences-In some cases we secure
to the rail c a bracket the end of which is preferably curved to correspond with
the circumference or the "driven" pulley g. When the parts are in the positions
they occupy when doubling or twisting is taking place the end is clear of the
"driven pulley y but when the "driven" pulley is raised to "stop" the spindle
the circumference of the "driven" pulley will be brought against the bracket z
which will act as a brake to arrest the rotation of the pulley g, spindle k and
bobbin B.
61
Although we have shown in the accompanying drawing but one form of "detector
mechanism" as being employed in conjunction with the apparatus in which our
invention consists, any other suitable arrangement of detector mechanism may be
employed to hold the lever e in a raised position and upon a yarn or thread or yarns
or threads becoming broken or absent to allow such lover e to descend and allow the
draw or drag rollers to be separated from the draw or drag roller t.
The above mentioned figures of the accompanying drawing show our invention as
applied to one spindle only but arrangements constructed according to our invention
will be required in conjunction with each spindle of the twisting or doubling
machine.
b
Instead of employing a number of separate "driving" pulleys as above described
we propose to use in some cases one long drum or cylinder or long drums or
cylinders.
In some cases we form the "driving" pulley b and "driven " pulley g as grooved
pulleys.
We also propose to, in some cases in order to increase the driving power of the

page_text: "
pulleys above mentioned, to make the "driven " pulley in two portions and cause the
two portions of the said "driven" pulley to be pressed towards each other by means
of screws and springs. If desirable or necessary we in some cases secure to either or
both of the portions of the "driven" pulley before mentioned, rings or surfaces of
indiarubber, leather or other suitable material, such indiarubber, leather or other
suitable material, increasing the adhesion between the "driving" and "driven
pulleys One method of carrying this portion of our invention into effect is
shown by Figs. 3 and 4 of the accompanying drawings, Fig. 3 being an edge
view and Fig. 4 a front view of that which is shown in Fig. 3-The pulley
formed in two portions g². g³-Secured to the portion g³ are bolts 1 each provided
with nuts 1ª. Each of the nuts 1ª is situate in a recess formed in the portion g².
Between each of the nuts 1" and the bottom of the recess in which such nut 1 is
situate we place a spring 2. The springs 2 tond to draw the two portions g², g³
of the pulley g together so as to cause them to press against the circumference
of the driving pulley which in this case is formed angular.
"
15
We in some cases form a groove around the "driven "pulley in which groove we
place a band of indiarubber, leather or other suitable material so that when the
"driven pulley is placed in contact with the "driving" pulley the aforesaid band of
indiarubber, leather, or other suitable material will increase the adhesion between the
surface of the "driven" pulley and the surface of the "driving" pulley.
By our invention we are able to drive the spindles of doubling and twisting
machines at a "high speed" and yet be able to quickly "stop" such spindles when a
yarn or thread or yarns or threads becomes or become broken or absent.
Having now particularly described and ascoitained the nature of our said Invention
and in what manner the same is to be perform. d we declare that what we claim is:
1. The hereinbefore described arrangement; by means of which rotary motion is
caused to be imparted to each of the spindles of a machine for doubling or twisting
yarns or threads and by means of which when one or more of the yarns or threads
being doubled or twisted by and wound upon a spindle becomes or become broken or
absent the said spindle is stopped which arrangements consist in a "driven " pulley
such as g, frame or bracket such as, lever such as e and rod such as all constructed,
arranged, employed and operating in conjunction with suitable "detector mechanism
substantially as hereinbefore described in reference to and indicated in and by the
accompanying drawing.
2. For use in a machine for doubling or twisting yarns or threads a pulley such as g
formed of two portions such as g² and g³ drawn or pressed together and constructed
substantially as hereinbefore described in reference to and indicated in and by Figs. 3
and 4 of the accompanying drawing.
Datad this Ninth day of hakuan 1000