Improvements in Twisting Machines.
Year: 1891

page_text: Date of Application, 16th Mar.. 1891
Complete Specification Left, 16th Dec., 1891-Accepted, 27th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in Twisting Machines.
I, GEORGE LOOMIS BROWNELL, of Worcester in the County of Worce-ier
and State of Massachusetts, United States of America, Manufacturer, do hereby
declare the nature of my invention to be as follows:-
My improvements relate to that class of twisting machines in which several
strands are twisted into a rope, cord, or twine by means of a rotary motion imparted
to the strands as they are drawn from separate spools, or cops, and brought together
in a line coincident with their axis of rotation, and as they are twisted, the completed
cord, or rope is wound upon a winding spool.
1. The first part of my invention relates to the portion of the machine employed
in twisting each of the component strands and it consists in arranging the spools,
or cops, around a central vertical post, and rotating the spools or cops, by means of
small pinions, which engage a central driving gear, around which the pinions are
placed, and also in providing a housing for the small pinions and the central driving
gear. The strand spools are carried upon vertical spindles arranged concentrically
around the driving gear, which is concentric with the vertical post, these spindles
are journalled in spiders attached to the vertical post, the lower spider consisting
of a shell, which forms a cover or housing for the driving gears. The spool spindles
are provided with flyers by which the strands are twisted, and from the twisting
spindles the strands are taken to the revolving "head" by which the collected
strands are twisted together.
11. The second part of my invention relates to the devices by which the twisted
cord is laid upon a winding spool carried in the revolving head, and it consists in
the mechanism by which the guiding pulley, or strand eye, is made to traverse back
and forth the length of the winding spool.
The revolving head consists of a flyer frame inclosing the winding spool and
having hollow journals, through one of which is a hollow spindle by which the
winding spool is driven, and through which the twisted cord is conducted to the
winding spool, the spindle and journal having each a belt pulley by which
the winding spool and the flyer frame is rotated.
The twisted cord is carried over a guide pulley, or if preferred through an eye,
supported upon a carriage having a traversing motion along one of the sides of the
flyer frame.
The other hollow journal of the revolving head is provided with longitudinal
slots, placed diametrically opposite and within the hollow journal is a hollow sleeve
having two spiral slots, diametrically opposite. The hollow sleeve extends within
the flyer frame and carries upon its inner end a scored pulley, to which an endless
belt is attached, which is conducted around suitable guide pulleys along parallel
with the side of the flyer frame supporting the traversing earriage.
Within the hollow sleeve is a short cylindrical block capable of a sliding motion
and having a transverse pin passing through the spiral slots of the hollow sleeve
and entering the slots of the hollow journal, by which the rotary motion of the
journal is imparted to the cylindrical block. Swivelled to the block is a spindle
provided with rack teeth and partly inclosed within the hollow sleeve, and having a
reciprocating motion by means of a pinion, which engages the toothed spindle and
which is given a rotary reciprocating motion by means of a "mangle-wheel," the
block is thereby made to slide back and forth along the hollow sleeve, to which it
imparts a rotary reciprocating motion by the action of the transverse pin within
the spiral slots of the sleeve. The reciprocating motion of the scored pulley
carried upon the hollow sleeve produces a corresponding reciprocating motion of

page_text: the endless belt, and to the endless belt I attach the traversing carriage. As the
cylindrical block is moved up the hollow sleeve the carriage is caused to move along
the side of the flyer frame in one direction, and as the block moves down the sleeve
the motion of the carriage is reversed, the carriage moving in each direction the
length of the winding spool.
III. The third part of my invention relates to the device by which the driving
belts of the machine are maintained in a state of uniform tension. The machine is
provided with three parallel longitudinal shafts, from the lower of which a belt
drives the rotating flyer spindles which carry the strand spools and by which the
strands are individually twisted; from the central shaft a belt drives the hollow
spindle, which, passing through the hollow journal of the revolving head rotates
the winding spool, and from the upper shaft a belt drives the flyer frame, forming
the revolving head. Each of these belts has a tightening pulley, carried by one
of the arms of a pivoted bell-crank; the opposite arms of the bell-cranks being
connected by a flexible connection, one end of the connection being attached to
the lower bell-crank and passing over a pulley turning upon the arm of the
upper bell-crank with its opposite end attached to the arm of the central bell-
crank. This flexible connection includes a spiral spring, whose tension is thus
applied in common to all the bell-cranks to carry their tightening pulleys against
their respective belts, each of the pulleys therefore is made to bear with equal
force against its belt, maintaining the belts in a state of uniform tension.
IV. The fourth part of my invention relates to the form of the traversing
carriage already referred to, by which the twisted cord is laid uniformly upon
the winding spool, and it consists in providing the carriage with two prongs
extending from the carriage, one toward the left hand side of the winding spool
and the other of the prongs toward the right hand side of the winding spool;
when the winding spool runs in one direction the guiding pulley or eye is carried
upon one of the prongs, and when the winding spool is rotated in the opposite
direction the guiding pulley or eye is carried upon the other of the prongs, this
reversal of the direction of the winding spool is caused by the reversal in the
direction of the rotation of the flyer frame itself, as it is desired to give to the
twisted cord a right, or a left hand twist.
V. The fifth part of my invention relates to the method by which the flyer
frame, forming the revolving head is counter-balanced to counteract the momentum
of the traversing carriage, and the guide pulleys over which the endless belt is
passed, these parts of necessity being placed upon the same side of the flyer
frame, and my invention consists in placing the counter-weights upon the opposite
side of the flyer frame and in the same plane of rotation, as the parts they are
intended to counter-balance.
VI. The sixth part of my invention relates to the device constituting the stop
motion by which the twisting mechanism is stopped upon the breakage of any
one of the component strands which form the twisted cord and it consists in a certain
spring actuated mechanism, by which the driving power is disconnected from the
twisting mechanism, said spring actuated mechanism being restrained by the tension
of the strands as they pass from the cops or spools on which they are wound to
the twisting nechanism. Beside each of the component strands of the twisted
cord as they pass from their cops or spools to the twisting mechanism I place
a small pulley bearing against the strand and by which the strand is deflected
from a straight line. Each of these pulleys is carried upon the end of an arm
pivoted at its opposite end and having a spring applied thereto drawing the arm
in a direction opposed to the tension of the strand against which the pulley
bears, so that when any of the strands break and its tension is removed from
its pulley the arm will be moved through a limited angular movement by the
tension of its connected spring. Each arm bears against a projection upon
the side of a disk so that the angular movement of any of the arms upon the
breakage of a strand will cause the disk to be rotated winding a chain which
has one end attached to the periphery of the disk and its opposite end attached

page_text: to a lever pivoted upon the frame work of the machine so that the winding of
the chain upon the periphery of the disk will produce an angular movement of
the connected pivoted lever. This pivoted lever is provided with a spur, which
is brought by the angular movement of the lever, as actuated by the chain, into
the path of a spur projecting radially from a nut which is carried upon the
screw threaded end of a spindle held within and extending through a hollow
driving shaft with which it has a spline connection. Upon the opposite end of
this inclosed spindle is a friction disk, arranged to be brought against a friction
surface upon the side of a pulley, to which power is applied, and which runs
loosely between collars upon the hollow driving shaft. As the nut, carried upon
the screw threaded end of the spindle inclosed within the driving shaft, is
screwed against the end of the hollow shaft, the spindle is moved longitudinally
within the driving shaft, bringing its friction disk against the side of the
rotating driving pulley and causing the rotation of the pulley to be communicated
through the friction disk and spline connection of the spindle to the hollow
driving shaft through which power is imparted to the twisting mechanism.
Upon the breakage of any of the strands of which the twisted cord is composed
an annular motion is imparted to the lever pivoted upon the frame work of the
machine, causing its projecting spur to engage the radially projecting spur upon
the nut carried upon the end of the inclosed spindle, thereby checking the
rotation of the nut and causing it to become partially unscrewed from the
spindle, allowing a slight longitudinal reverse movement of the spindle within
the hollow driving shaft, which is effected by means of a spring, which may be
conveniently inclosed within an annular chamber in the driving shaft with its
tension applied to move the spindle and carry its friction disk out of contact
with the rotating pulley, thereby disconnecting the driving pulley from the hollow
shaft and causing the stoppage of the twisting mechanism.
Dated this 28th day of February 1891.
COMPLETE SPECIFICATION.
Improvements in Twisting Machines.
1, GEORGE LOOMIS BROWNELL, of Worcester, in the County of Worcester and
State of Massachusetts, United States of America, Manufacturer, do hereby
declare the nature of my invention for IMPROVEMENTS IN TWISTING MACHINES,
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 that class of twisting machines, in which several strands
are twisted into a rope, cord, or twine, by means of a rotary motion imparted to the
strands, as they are drawn from separate spools, or cops, and brought together in a
line coincident with their axis of rotation, and as they are twisted the completed
cord or rope is wound upon a winding spool.
In the following description reference is made to the figures in the accompanying
drawings, which show such portions of a twisting machine as embody my invention
and are necessary to fully illustrate the nature of the same.
Figure represents a side view of a twisting machine embodying the several
features of my invention, portions of the frame-work having been removed in order
to disclose the operating parts.
Figure 2 is a view of one of the belt tightening pulleys with its supporting bell-
crank.
Figure 3 is a top view of the strand spools and also of that portion of the stop
motion mechanism directly acted upon by the individual strands, a top portion of

page_text: the flanged disk, forming a part of the stop motion, having been removed, in order
to disclose one of the spring actuated bell-cranks, which is held in position by the
tension of the strand.
Figure 4 is a side view of that portion of the stop motion mechanism represented
in top view in Figure 3 with a portion of the flanged disk removed.
Figure 5 is an edge view of the flanged disk forming a part of the stop motion
mechanism, and which is rotated by one of the spring actuated bell-cranks upon the
breakage of a strand.
Figure 6 is a longitudinal, central sectional view of one of the rotating shafts, to
which power is applied in order to drive the machine and illustrating that portion
of the stop motion mechanism, which is directly connected with said shaft.
Figure 7 is a central sectional view of a portion of the mechanism, by which a
traversing motion is imparted to the twisted cord, or rope, as it is being wound upon
the winding spool.
Figure 8 is a detached view of the tubular sleeve provided with spiral slots to
receive pins projecting from a reciprocating rack bar inclosed within the sleeve, and
by which the longitudinal motion of the rack bar is made to impart a reciprocating
rotary motion to the sleeve.
Figure 9 is a detached view of the outer sleeve shown in Figure 3, and which is
attached to, and forms the upper journal of the flyer frame.
Figure 10 is a detached view of the inner end of the hand lever, showing the
main driving shaft in cross-section and an end view of the actuating mut, shown in
sectional view in Figure 6.
Figure 11 shows a portion of the flyer frame, with a top view of the reciprocating
drum by which the cord guiding carriage is traversed along the flyer frame by
means of a connecting cord or band.
Referring to the accompanying drawings, in which like parts are indicated by
like letters of reference, A, Fig. 1, denotes the supporting frame-work, such
portions having been removed as are necessary to disclose the operating parts of the
machine; B, B, are the flyer spindles arranged concentrically around the central
post B and having their upper ends journalled in the arms B of a spider attached
to the post B. The spindles B carry the individual strand spools B³ from which
the strands B are conducted through the hollow ends of the spindle B to a
compressor B³, carried by the rotating flyer frame C, by which the individual
strands B are twisted together into a rope or cord and conducted through the
hollow lower journal of the flyer frame, around scored stretching drums C and over
small guide pulleys C and C³ to the winding spool C₁, the guide pulley C being
held in a carriage C, which slides up and down upon the side of the flyer frame
and by which the twisted cord is traversed along the winding spool C. The above
mentioned parts of my machine in substantially the same form, are common, in many
machines of this class and are substantially the same in their method of operation
as the like parts shown and described in my Patent No. 18,890 of 1888.
Journalled in the frame-work of the machine is a driving shaft D to which power
is applied and from which, through belt connections, rotary motion is imparted to n
shaft journalled in the upper part of the frame-work and by which the mangle
wheel E is rotated; also to the shafts F and G. A belt a connects the shaft D
with the flyer frame C; the belt serves to drive the stretching and winding
mechanism from the shaft and the flyer spindles B are driven through a belt c
from the shaft G and the three belts a, b and c are acted upon by the tightening
pulleys e, e¹ and e², carried by the short arms of bell-cranks," and f, which turn
upon fixed studs held in the frame-work A of the machine.
The longer arms g, g' and g² are horizontal and parallel and are connected
together by a flexible connection h, which is attached to the ends of the arins g
and and passes over a pulley journalled on the end of the arm g. The flexible
connection comprises a spiral spring h² the tension of which is applied in common
to the arms, and to rotate the bell-cranks and carry the tightening
pulleys e, e and e against the belts a, b and c so that the single spring serves

page_text: to tighten the three belts a, band and maintain them in a state of uniform
tension.
The
Intermediate between the tightening pulleys, and e² and the arms (j" and ƒ³,
of the bell-cranks are the arms i, i, one of which is best represented in Fig. 2.
tightening pulleys are journalled upon studs carried in one end of the arms i and
the opposite ends of the arms i are provided with a curved flange having a slot♬
to receive a bolt by which the armi is adjustably attached to the arm of the
bell-crank lever.
This allows an angular adjustment of the tightening pulleys with reference to
their supporting bell-crank arms, so as to adjust them to the alignment of the belts
to which they are applied.
The carriage C, by which the twisted cord is traversed along the winding
spool C, is attached to a cord II, which passes around a guide pulley H' and over
the guide pulleys H2 turning upon studs supported by the flyer frame and having
its ends carried around and attached at H³, Fig. 11, to the reciprocating drum H,
to which a reciprocating rotary motion is imparted by means of the mechanism
represented in sectional and detailed views in Figures 7,8 and 9. The upper rail H
of the flyer frame C is provided with a hub H, to which is attached the sleeve H7,
provided upon diametrically opposite sides with longitudinal slots H.
A sleeve H
is inclosed within the sleeve H and provided with the spiral slots H
The sleeve His attached by a pin " to a short spindle H" journalled within
the hub H and having the drum attached to its lower end. Within the
sleeve is a sliding rack bar II, provided with teeth H" and engaged by a
pinion H, carried upon a shaft 11, which has a reciprocating motion as actuated
by the mangle wheel E and driving pinion E' on the shaft E, in the usual
manner.
The sliding rack bar His provided with a groove H 7, to receive the end of the
screw 18, which is held in the fixed frame-work of the machine, and by which the
rack bar His held from rotating. Within the sleeve and below the reci-
procating rack bar His placed a cylindrical shell containing a block H
carrying the projecting pins H", which pass through the spiral slots H in the
sleeve H, and enter the straight longitudinal slots in the sleeve H. The
shell H incloses a chamber H, within which are placed the two rows of friction
balls, separated by a flange H upon a spindle H, which is journalled in
the block II and attached by a pin H to the lower end of the reciprocating rack
bar H a swivelled connection is thereby made between the reciprocating rack
bar and the shell H, in which are carried the pins H, I, allowing the shell
and pins to be moved up and down within the rotating sleeves H and H. As the
pins are moved up and down by the rack bar H, a rotating reciprocating
motion will be imparted by means of the spiral slots to the sleeve Hand
connected spindle H which carries the drum 11', thereby causing an up and down
traversing motion of the guiding carriage (and pulley C, and laying the twisted
cord evenly upon the winding spool ( The lyer frame is provided with
projecting lugs, j, forming such an angle with each other as will bring them into
planes tangential with the opposite sides of the reciprocating drum H', and upon
these lugs are supported the guide pulleys H A rapid rotative movement is
imparted to the flyer frame C, as the individual strands B are being twisted into a
cond in the usual manner, the sleeve H', attached to the hub 11 of the upper rail II³
of the flyer frame C, forming the upper journal of the flyer frame and rotating
within the bearings H, H.
The inclosed siceve HP, with its attached spindle II" and winding drum_H*
together with the pins H, H", have a common rotating motion with the flyer
frame and outer sleeve H
If, however, a reciprocating movement is imparted to the rack bar H causing
the pins H, Ha, to move up and down the longitudinal slots 1 in the outer
sleeve H', a reciprocating rotative movement will be imparted to the inner sleeve H

page_text: relatively to the outer sleeve H and flyer frame C, by the action of the pins H", H",
within the spiral slots Ho, producing a corresponding motion of the winding
drum and alternately winding the cord H in opposite directions upon the
drum Hand imparting a traversing motion to the carriage C; moving it with a
positive motion up and down along the side of the flyer frame C, a distance equal to
the length of the winding spool C. The object of that part of my improvement
relating to what I term the stop motion mechanism is to connect or disconnect the
main driving shaft D with the motive power, as determined by the tension of the
individual strands B, so that the breakage of any one of the strands, which are
being twisted together into a cord, will cause the operating portion of the machine
to stop. The main shaft D is hollow throughout its entire length and is shown in
central sectional view in Fig. 6. Turning loosely upon the shaft D is the main
driving pulley I, provided with an elongated hub inclosing the shaft D and
journalled within the bearing 12 supported by the frame-work of the machine.
Within the shaft D is a concentric spindle I, having attached thereto a friction
disk 1, provided with an elongated hub entering the end of the hollow shaft D.
Surrounding the spindle 13 is an annular chamber I containing a spiral spring
acting against the end of the chamber and the end of the hub 1' to push the hub 13
out of contact with the web 1 of the main driving pulley I. A spline 1 serves to
connect the hub 1 with the hollow shaft D, causing the rotation of the friction
disk as it is driven by frictional contact with the web 18 of the driving pulley I
to be imparted to the hollow driving shaft D. The driving shaft D is journalled
within the elongated hub of the main driving pulley I and the bearing 10 and
carries the driving pulleys 111, 112 by which rotary motion is communicated to the
flyer frame C and also to the shaft Upon the opposite end of the spindle 13 and
having a frictional connection therewith, as hereinafter described, is a hand
wheel, provided with a screw threaded hub 114, carrying a nut I, provided with
a radially projecting spur 16, the inner end of the nut 15 resting against the
washer, which presses against the end of the shaft D. The hand wheel 1" is
held upon the end of the spindle 13 by means of a cotter pin 118, the thrust of the
spiral spring 17 drawing the cotter pin 1 against a metallic washer I, which rests
upon a washer 120, preferably made of raw hide, or vulcanized fibre, the frictional
contact between the cotter pin 118 and the washers 10 and 10, and also between the
inner end of the nut 11, washer I" and the end of the shaft D, will cause the hand
wheel, with its screw threaded hub 1" and nut [15, to rotate with the shaft D.
The operating parts of the machine are set in motion by rotating the hand
wheel, withdrawing its screw threaded hub [ from the nut and sliding the
concentric spindle 13 within the hollow shaft D, causing a compression of the
spiral spring 17 and bringing the side of the disk 1 into frictional contact with
the web of the driving pulley I causing the rotation of the pulley I to be
imparted to the driving shaft D.
The hand lever J is pivoted upon a stud J, held in the frame A of the machine
and having a projecting spur J³, represented in Fig. 10, so disposed that, by the
depression of the handle J, the inner end of the lever will be raised and the spur J
brought into the path of the radial spur 11 on the nut 1 as represented in
Fig. 10, thereby stopping the rotation of the mut 11, and causing the screw
threaded hub of the hand wheel Is to enter the nut, allowing the spiral spring I'
to expand and slide the concentric spindle 1' within the hollow shaft D, thereby
carrying the disk 1 out of frictional contact with the web Is of the driving
pulley at the same time bringing the opposite side of the friction disk I into
contact with a fixed friction plate I", suitably supported by the frame-work of
the machine, thereby causing the friction disk I to act as a brake to overcome the
momentum of the operating parts of the machine. The hand wheel 1 is held
upon the spindle I by means of a cotter pin I, the thrust of the spiral spring 17
serving to draw the cotter pin I against a metallic washer I, which rests upon
the washer 1, preferably of raw hide, the frictional contact between the cotter

page_text: pin and the washers 1, 15, and also between the inner end of the nut 1",
washer and the end of the rotating shaft D, will cause the hand wheel I" with
its screw threaded hub 1" and nut 15 to rotate with the shaft D.
The angular motion of the hand lever J, by which the spur J is brought
into the path of the spur 11 is automatically accomplished by means of the
stop motion mechanism controlled by the individual strands B as they are
drawn from the strand spools B³, as hereinafter described. To the inner end of
the lever is attached a cord J', which is carried over guide pulleys J,
Fig. 1 to a flanged disk J, to which the end of the cord is attached at. and
which turns about the vertical post immediately above the arms B² of the upper
spider, by which the upper ends of the flyer spindles B are supported. The
disk is provided upon its lower side with a flange having notches.J to
receive the spider arms B, the notches being large enough to allow a limited
movement of the disk Jaround the post B'. Pivoted upon the upper side of each
of the spider arms 132 are bell-crank levers J, one of which is shown in top view
in Fig. 3 and in edge view in Fig. 4, a portion of the flanged disk J' having been
removed for that purpose.
The bell-crank is pivoted to the spider arm by a stud J, and to the end of
the shorter arm of the bell-crank connect a spiral spring Js with its opposite
end attached to an annular rim J1 forming a part of the spider itself: the line of
strain of the spring J passing between the pivotal stud and the free end of
the longer arm of the bell-crank.
The longer arms of the bell-cranks are turned upward at J" forming a support
for the guide pulleys J18 across which the individual strands are carried from
the flyer spindles 13 to the compressor B, and by which they are deflected
from a right line, so the tension of the strands B will tend to rotate the bell-
cranks upon their pivotal studs and against the tension of the spiral springs J
Whenever either of the strands B is broken and its tension removed from its
guide pulley J the corresponding bell-crank will be rotated upon its pivotal stud
by the tension of its connected spring, bringing the longer arm of the bell-crank
into contact with the edge of the flange and causing a slight rotating movement
of the flanged disk J winding up the cord J7 and lifting the inner end of the
hand lever J, thereby bringing the spur into the path of the spur 1 and causing
the immediate stoppage of the driving shaft D, as already described.
The shorter arms of the bell-crank levers J carry studs in their free ends,
which extend below the spider arms B and to which the spiral springs Jare
attached, thus bringing the springs below the spider arms B'. When the bell-
crank levers are held by the tension of the strands B against the tension of the
springs the line of strain exerted by the spring is made to pass near the
pivotal stud J, so that the force of the spring is resisted by a slight pressure
applied by the strand B' to the guide pulley ; but when the strand B breaks,
allowing the spring to rotate the bell-crank lever, the line of strain exerted by
the spring moves farther away from the pivotal stud, causing an increasing
force to be applied by the bell-crank to rotate the flanged disk and wind up the
cord J.
Those portions of the mechanism which are set forth in the Provisional Specifi-
cation filed by me as my first, fourth and fifth improvements, I do not now claim
as parts of my present invention as I believe the specific construction therein
described is not broadly new.
I am aware that the intermediate mechanism between the individual strands B
and the main driving pulley I, through which rotary motion is communicated to
the operating parts of the machine, can be modified in many particulars by the
substitution of other and well known devices, by which the tension of each of the
individual strands can be made to determine the action of the stop motion
mechanism; I do not therefore confine myself to the specific construction and
arrangement of parts as herein described and shown in the accompanying drawings,

page_text: the employment of a spring actuated vibrating lever, restrained by the tension
of the individual strands, substantially as described, so far as I am aware, is new
in machines of this class.
Having now particularly described and ascertained the nature of my said
invention and the manner in which the same is to be performed I desire it to be
understood that I do not claim as my invention all the detailed parts, as set forth
and described in the accompanying drawings; but what I do consider novel and of
my invention is:
1. The combination with the driving belts, of a series of belt tightening levers,
and tightening pulleys carried thereon, by which the driving belts are tightened,
of a flexible connection between said levers, and a spring included in said con-
nection, by which the tension of the spring is applied in common to said levers
and the driving belts simultaneously tightened with an equal tension, as shown and
described.
2. The combination with the driving belts, of the belt tightening levers, a spring
with its tension applied in common to said belt tightening levers, belt tightening
pulleys carried by said levers, intermediate arms between said levers and said
pulleys and provided with curved and slotted flanges, by which they are attached
to the tightening levers, whereby the position of the pulleys are varied relatively
to said levers, in order to bring the pulleys into proper alignment with the belts,
as shown and described.
3. The mechanism for guiding the twisted cord as it is laid upon the winding
spool; said mechanism comprising a flyer frame, a cord guiding carriage, a recipro-
cating drum within the flyer frame and operatively connected with said carriage,
a spindle carrying said reciprocating drum and held concentrically in one of the
journals of the flyer frame, and connected actuating mechanism outside the flyer
frame, by which a reciprocating rotary motion is imparted to said spindle and
drum, as shown and described.
4. The combination with a flyer frame provided with a hollow journal, and a cord
guiding carriage traversing along said flyer frame, of a reciprocating drum within
the flyer frame and operatively connected with said carriage, a spindle carrying
said drum and held concentrically in said hollow journal, a sleeve attached to said
spindle and provided with spiral slots, a block sliding in said sleeve, pins held in
said block and engaging said spiral slots, and a longitudinally reciprocating rack
bar having a swivelled connection with said block and held concentrically in the
journal of the flyer frame, and a reciprocating shaft carrying a pinion engaging
said rack bar, as shown and described.
5. The combination of the flyer frame C, cord guiding carriage C³, reciprocating
drum H, flexible connection H between said drum and carriage, spindle H
carrying said reciprocating drum, sleeve H provided with spiral slots H,
sleeve provided with slots H", said sleeve H' being attached to the flyer frame
and forming one of its journals, block Ho, pins H", rack bar having a
swivelled connection with the block H, and reciprocating pinion H engaging
said rack bar, as shown and described.
6. The combination with the flyer frame C, of the sleeve H' attached to said
flyer frame and forming one of its journals, spindle H journalled concentrically
within said sleeve and operatively connected with actuating mechanism outside of
the flyer frame, by which a reciprocating rotary motion is imparted to said spindle,
a drum carried upon said spindle and placed within said flyer frame, and à cord
guiding carriage operatively connected with said drum, as shown and described.
7. The combination of a flyer frame provided with a sleeve H' forming one of
its journals, a rack bar H, a reciprocating pinion H engaging said rack bar, a
spindle H held in said rack bar and provided with an annular flange H, a sliding
block II provided with a chamber inclosing said flange, a series of friction
balls H placed between said flange and the walls of said chamber, a winding

page_text: spool, a traversing cord guiding carriage, by which the twisted cord is laid upon
the winding spool, and intermediate connecting mechanism between said traversing
carriage and said sliding block, as shown and described.
8. The combination with mechanism for twisting the individual strands into a
cord, of a hollow shaft D operatively connected with said twisting mechanism, a
driving pulley I running loo-ely on said shaft, a sliding spindle 1' held in the
shaft D and having a spline connection therewith, a disk I carried on said spindle
and arranged to engage said pulley, a spring 1' applied to the spindle I' to move
it longitudinally within the shaft D, and operating mechanism connected with said
spindle to move it against the tension of said spring and cause the disk I' to
engage the driving pulley I, as set forth and described.
9. The combination with mechanism, for twisting the individual strands together
into a cord, of the hollow shaft D, pulley I running loosely on said shaft, spindle 1*
held concentrically within the hollow shaft D and having a pline connection
therewith, friction disk I carried by the spindle I, screw threaded hub I" having
a frictional connection with the spindle I, mut I carried on the hub and held
from longitudinal movement, whereby the spindle 1 is moved longitudinally and
the disk made to engage the pulley 1, as set forth and described.
10. The combination with mechanism for twisting the individual strands into a
cord, of shaft D, pulley I, concentric spindle I' within the shaft D, friction disk 1*,
hub 1", nut, radial spur 11, pivoted lever J, provided with a spur J', arranged
to be brought into the path of the radial spur 11, whereby the rotation of the
nut is checked and the spindle moved longitudinally in order to bring the
into engagement with the pulley I, as shown and described.
disk
11. The combination with mechanism for twisting the individual strands into a
cord, of a driving shaft D, operatively connected with said twisting mechanism,
pulley running loosely on said shaft, clutching mechanism, by which said shaft
and said pulley are connected, a sliding spindle I, screw threaded hub 11, nut I",
and a pivoted lever J, by which said nut is held from rotation, as shown and
described.
12. The combination of the shaft D operatively connected with the cord twisting
mechanism, pulley I, clutching mechanism between said shaft and said pulley,
spindle operatively connected with said clutching mechanism, hand wheel [
provided with a screw threaded hub 1" and carried on the spindle I, and a nut 11,
carried on the hub 1" and held from longitudinal movement, as shown and
described.
13. The combination with a driving shaft and clutching mechanism by which
said shaft is connected with the motive power, of a disk J' operatively connected
with said clutching mechanism, a spring with its tension applied to impart an
angular movement to a bell-crank lever, a bell-crank lever J carrying a guide
roll J, by which an individual strand is deflected from a straight line, and said
spring restrained from actuating the bell-crank lever until the strand is broken,
said bell-crank lever being operatively connected with said disk, as shown and
described.
14. The combination of a series of pivoted levers J", provided with guide
rolls J, by which the strands to be twisted are deflected from a straight line,
springs applied to said levers and against the tension of the strands, disk .J'
having a flange J provided with notches J", which are engaged by the levers J
as their springs Jare released by the breakage of the strands, and clutching
mechanism, by which the operating parts of the machine are connected with the
driving power, said disk J being operatively connected with said clutching
mechanism, as shown and described.
15. The combination of shaft D, pulley I, and clutching mechanism by which
said shaft and pulley are connected, disk J operatively connected with said
5 clutching mechanism, bell-crank levers J, guide rolls J carried upon the arms
of said bell-crank levers, and springs J" applied to the other arms of said bell-
crank levers, with their tension exerted in a line passing near the axis of said
B

page_text: levers, said disk J being arranged to be rotated by either one of said spring
actuated bell-crank levers upon the breakage of a strand, as shown and described.
Dated this Second day of December 1891.
GEORGE LOOMIS BROWNELL.
J. C. Chapman, C.P.A.,
70, Chancery Lane, London, Filing Agent.