Improvements in Spinning Machines.
Year: 1898

page_text: Date of Application, 22nd Feb., 1898-Accepted, 18th June, 1898
COMPLETE SPECIFICATION (AMENDED).
Improvements in Spinning Machines.
1, EDMUND KINGSLEY BAKER, of 104, Buckingham Street, Springfield, Massachusetts'
Manufacturer, in the United States of America, 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 improvements in a spinning machine designed to perform
the work of a mule, but comprising mechanism structurally widely different and
operating in a widely different manner from the mule.
The present machine comprises mechanism for periodically delivering as required a
certain amount of roving without draft, the amount delivered at each delivery period
depending upon the size of the roving and the required size or fineness of the finished
yarn, and comprises improved means for operating and controlling the twisting and
drawing mechanism whereby the proper amount of "drawing twist" relatively to the
amount that the roving is drawn or elongated may be secured in accordance with
varying classes of spinning, previous to the winding of the yarn onto the bobbins.
The present invention relates to a spinning machine regarded as standing in a class
by itself, the same embodying a number of instrumentalities in novel combination or
arrangement for the accomplishment of the ultimate object of providing yarns, but
the principal reason of the present improvements is to provide more efficient, speedy,
and practicable mechanism for carrying out the spinning operations, and to further
provide mechanisms for rendering this machine available for the spinning of rovings
of widely differing sizes and qualities, and for the production of yarns also of widely
differing sizes as occasions may require.
The invention consists in the combinations of mechanisms, and in the constructions
and combinations of parts and in the constructions of parts or devices, all substantially
as will hereinafter fully appear and be set forth in the claims.
Accompanying this specification are complete drawings made for the most part
substantially to uniform scale from a complete full sized factory-operating spinning
machine comprising the present improvements, and in said drawings Figure 1 is a
plan view of what I terin the "head" end portion of the spinning machine.
Figure 2 is a plan view of the opposite end portion of the machine.
Figure 3 is an elevation of the machine taken at the head end.
Figure 4 is an elevation of the opposite end.
Figure 5 is a front or side elevation of the head end portion of the machine.
Figure 6 is a similar front elevation of the opposite end portion of the machine.
Figure 7 is a cross sectional view in the nature of a diagram illustrating essential
components of the spinning machine, and designed to show in a simple and clear
manner, the course of the roving from the roving spool to the bobbins in its relation
to the instrumentalities operating thereupon.
Figure 8 is a plan view of the spool of roving

page_text: Figure 9 is a plan view of the building up mechanism controlling the rising and
falling bobbins.
°
Figure 10 is a sectional view in detail to be hereinafter referred to.
Figure 11 is an elevation of a portion of the delivery roll driving mechanism.
Figures 12, 13 and 14 are respectively plan, side, and sectional views of the form of
twister bead utilized in this machine.
Figure 15 is a sectional view of parts shown in Figure 11.
Figure 16 shows power transmission mechanism interposed between the main shaft
and a continuously running shaft comprised in the "bead works" for operating and
controlling the intermittent let-off or delivery of the roving.
Figure 17 is a perspective view, with parts broken away and in section for clearer
illustration, of the above mentioned head works mechanism governing the roving
delivery.
Figure 18 represents the utilization of a supplemental head, which is available for
the production of the finer "numbers" of yarn.
Figures 19 and 20 are elevations at right angles to each other showing modification
in the composition and arrangement of the variably speeded driving mechanism for
the drawing rolls.
Similar characters of reference indicate corresponding parts in all of the views.
In this machine, a suitably designed framework is understood.
A represents the main shaft having at the rear end of the machine, the fast and
loose pulleys 7 and 8 with driving belt and belt shifter 9 and 9, Figures 4 and 6.
20 represents the roving drum or cylinder, on which a spool 21 of roving bodily
rests, the core rod 10 of the spool being held against displacement by the forked
arms 11, the spool deriving a rotational movement for its delivery by reason of the
corresponding motion intermittently imparted to the cylinder through frictional
engagement.
The roll of roving, or "spool" is made up in the usual way, the same as done in
providing a spool of rovings for any spinning machine. The rovings all being
wound about the core 10 in the same direction; but inasmuch as they are carried
to drawing and twisting mechanism located at the opposite sides of the machine, and
the spool is always rotated in the same direction, half of the strands are therefore
taken off from the top of the periphery, while the other half are taken off from the
hottom.
The surface speed of the cylinder imparts a corresponding motion to the roving
so that if there is 12 inches of peripheral movement of the cylinder, there will be
substantially 12 inches of roving delivery no matter whether the spool is full or more
or less depleted.
22 and 23 represent sets of delivery rolls adjacent and axially parallel with the
aforesaid cylinder.
B represents the twister heads, and adjacent them are the paired drawing
rolls C C².
27 represents the spindler and bobbins. 24 represents a vibrator device located
between the delivery rolls and the twister head.
W represents a comparatively large spur gear-wheel mounted loosely, and
concentrically, on the journal for the cylinder 20 and this gear is constantly and
uniformly rotated by the spur gear 52 which is interchangeable on the horizontal
shaft 12 and which shaft has the bevel gear 13 on its opposite end which meshes
with the bevel gear 14 on the upright shaft 15 which is driven by the worm
gearing 16, 17 by the main shaft. A.
The said gear-wheel W has the series of small holes or sockets 51 at regular
intervals in any of which may be inserted a stud or pin 53 extending inwardly
sufficiently far to come into engagement with the latch a, hereinafter described and
explained, see Figures 1, 3 and 17.
On one end of main shaft A is mounted a bevel gear-wheel & meshing into bevel
gear-wheel b on shaft having on its opposite end a pulley b₁.
A belt ¹ runs around said pulley and also around the loose pulley b³, a fixed

page_text: pulley be being alongside, said fixed and loose pulleys being on a horizontal shaft c,
which is mounted to rotate in the journal bearing e² which is adjustable by having
the supporting arm c¹ thereof detachably confined to a suitable lug of the framework
by the clamp bolt and nut 18 indicated in Figure 3.
On the opposite end of shaft c is placed a change gear c³, detachably held in place
by the nut 19, which gear meshes with the gear fixed on delivery roll driving
shaft, which, by the bevel gears 40 drives the shafts c for and in common to one
series of both sets or pairs of the delivery rolls 23.
The roving drum or cylinder 20 is driven from one of the delivery roll shafts c
which has change spur gear, and which meshes into the spur gear compound
with the spur gear es, which compound gear is adjustably mounted as seen at c¹³,
Figure 4, and said gear c¹8 meshes into the spur gear which is fast to the shaft or
arbor of the cylinder 20.
The aforesaid spur gear W provided with a series of socket holes, has, in addition
to the laterally projected detachable stud or pin 53 also at some point around in the
circular line of the holes within its face, or near such circular line, the laterally
projecting shorter stud g.
Pivoted on the end of the framing at 47 is a frame or lever P seen in
Figures 1, 3 and 17 having the engagement member p with which the shoulder a²
of the aforementioned latch has periodically an engagement and disengagement, the
latch being under the stress of a spring a whereby it is maintained in its position of
engagement except at such times as it is forcibly moved or depressed from such
position.
The lever P has engaged therewith, the rod g¹ which connects one member of
the intermediately pivoted two armed lever g² to the opposite arm of which is
connected the rod gt which carries the belt shifting fork g5 for the aforementioned
belt b¹.
After the drawing of a given delivered quantity of the roving has been completed,
and a new delivery is to be given, the small roll or stud g projecting inwardly from
the face of the continuously rotating gear-wheel W comes at the proper instant, in
contact with the member p of the swinging lever P and forces this to the left as the
parts are relatively seen in Figure 3 sufficiently far to permit the latch a to spring
upward and hold the lever P from returning to its normal position as it has tendency
to do by reason of the weight g₁ connected to the end of the chain g³, which is
attached to the belt shifter mechanism with which the lever P is connected.
As the said lever P is thus swung to the position to be latched, it, through the said
rod gl so swings the two armed lever g² that the shipper rod g¹ moves to carry the
belt onto the outer or fixed pulley be causing, through the mechanism heretofore
described, simultaneously for a period, the rotation both of the cylinder 20 and the
delivery rolls, both of these having the same surface speed, the cylinder and delivery
rolls being geared together by the gearings herein before pointed out as provided at
the end of the machine opposite from that at which said gear W is mounted, it being
remembered that said gear W, while rotating concentrically with the arbor of the
cylinder 20, is not directly connected thereto.
And thus while the lever P is held in its latched-back position and the belt held
running on the fixed palley 66, the roving will be delivered by reason of the rotation
of the cylinder and of the delivery rolls, and such delivery will continue during such
portion of the rotation of the wheel W as corresponds to the distance the stud 53 is
from the projection g for it will be manifest that so soon as the said stud 53 comes
against and has a wiping bearing on and past the latch a to depress it, and
disengage it from the swinging lever P, the latter will automatically return to its
original position reversely placing the belt shifting mechanism with the belt on the
loose pulley 65.
The shaft c now has no driving force imparted thereto and the delivery rolls and
cylinder have their rotational movement stopped, the stoppage being immediate by
reason of the action of brake mechanism operative relative to the said fixed pulley 16,
and which is pointed out in the drawings to consist as follows;

page_text: h, Figures 3 and 5, is a brake-shoe pivoted at to a suitable supporting part of
the machine; and operating in conjunction with this brake-shoe is the inclined
bar h³ carried by the depending lug at the end of the belt-shifter-rod g, this last
mentioned part being most clearly seen in Figure 17.
The inward movement of the belt-shifter-rod, whereupon the belt is carried onto
the loose pulley ensures the impingement of the inclined bar 3 against the brake-
shoe to force it just as the belt is fairly off from the fixed pulley, into braking
engagement with said fixed pulley for the manifest result.
The relative locations of the studs or projections and 53 governs the time or
duration of roving delivery at each "draw" or complete operation of the machine
represented by one complete rotation of the said gear-wheel W.
Hence if the stud 53 is placed in a socket hole further behind the projection g
considered relative to the course of the rotation of these parts, the stud g always
being considered as leading or ahead of, the stud 53, the roving will be delivered
during a greater length of time than if the stud 53 were placed less far behind the
stud g.
The size of the interchangeable gear determines the quantity of the roving
delivered during the delivery period acquired as just above explained.
The twisters are continually running all the time.
Each twister has a driving band B3 passing around twister head drum B2 driven
from main shaft A by means of the changeable and adjustable gear-wheels 62, 63, 64
shown in the end view, Figure 4.
This gearing is changeable and adjustable to vary the normal and continuous
speed of the twisters by substituting the gear 62 on the drum for a larger or smaller
gear and correspondingly adjusting the intermeshing gear 63 intermediate between
this and the main shaft pinion 64.
The roving from the spool through the delivery rolls and through the twister head
passes from the jaws of the latter to the drawing rolls CC which are continuously
and variably driven.
When the roving is being delivered, the draw-rolls are driven by the sprocket-wheel
fixed on the common shaft C¹ for the one side series of draw-rolls C2 through the
sprocket-chain 43 from the sprocket-wheel which is loose on delivery roll shaft c",
said shaft co having fixed thereon the ratchet wheel, the teeth of which are in
engagement with the pawl f3 which is carried on the said sprocket-wheel, see
Figures 11 and 15; when the roving delivery stops the drawing rolls are driven by
the variably rotated cone D), or by the mechanism illustrated in Figures 19, and 20
which may be employed in lieu of the cone driving mechanism.
The cone D is fast on a shaft therefor running in hearings suitably provided.
On inner end of cone shaft is fixed a worm which engages the worm-wheel e*
fixed to sleeve e² loose on shaft e and which, by the bevel gearing 45 is in driving
engagement with the common shaft C on which the upper set or series of top
drawing rolls are fixed.
The sleeve 2 has on the flange 44 thereof, the pawl e which engages the ratchet
wheel e fixed on shaft e.
It will be here noted that the delivery of roving will be without draft thereon, for
such delivery, will be faster than the rate at which the drawing is done during the
time of delivery, and when the delivery begins, the sprocket-wheel which is fixed on
drawing roll shaft being driven, will drive the cross shaft e faster than the rate at
which the cone D has been driving the sleeve e2,-therefore ratchet wheel e3 which is
seen as provided fast to the shaft e will run ahead of its pawl e clicking past it during
part of the time that the cone is continuously, though uniformly speeded.
Now, when the delivery of roving ceases, the sleeve e² and pawl e continuously
revolving, will, through the engagement of said pawl with its ratchet wheel drive the
shaft e; and at this period in the operation, the rotation of common shaft C¹, for the
draw-rolls having the sprocket-wheel thereon will cause a corresponding run of
the chain 43, without effect thereby, for as may be understood, on reference
to Figure 3, the sprocket-wheel, which is loose on delivery roll shaft c will

page_text: have its pawl click past the teeth of the ratchet wheel which is fast on said
shaft co.
It is to be understood that as the roving is drawn down finer, it is necessary that
the speed of the drawing rolls C C should be reduced in order to insure relatively to
the degree of elongation of the stock an increased twisting thereof by the continuously
rotating twister head B, which result is accomplished by the frictional cone
belt Dº.
The cone E drives cone D through said belt in the manner common in variable
cone-driving mechanisms.
Now, as the drawing progresses after the delivery, the cone belt D2 is drawn
towards the large end of the cone D, and therefore towards the small end of the cone E
reducing speed of D and consequently, through the connected mechanism, of the
drawing rolls, all this being controlled by the action of the cam F on the same shaft
as the gear-wheel W, which is the arbor. for the cylinder in the present instance,
although not necessarily on this particular shaft.
The cam F operates the cam roll on lever G, to the outer end of which is attached
the flexible connection 62 having winding engagement on pulley drum 63, fast to
which drum is a larger drum 64, see Figure 5 in winding engagement with which is
the flexible connection or chain 65 connected to the sliding belt shifter 66 mounted
on slide bar 67, 'said chain thence passing over sheave 68 and having a weight on its
end in order to keep the cam roll end of lever G always closely against the rim of
the cam F.
The said cam F is fastened adjustably to the gear-wheel W, the object of which in
a general way is to insure that the cam will be so relatively set that when the latch
has been tripped or released and the delivery stopped, the cam will begin to draw up
the friction belt of and between the cones, and decrease the speed of the drawing
rolls and the decrease of the speed both in amount of decrease and also in the
suddenness or slowness thereof is, of course governed by the throw and grade of
the cam.
The spinning machine which has been constructed in accordance with the present
invention as exemplified in the accompanying drawings is seen to embody a let-off
controller for the roving, (the cylinder 20) and a driving connection for said let-off
controller, consisting of a constantly running wheel, (instanced, the one 64), and
mechanism of driving connection between such wheel and the controller, comprising
devices for rotating the controller for any required intervals relative to the rotation
of said constantly running wheel, (this involving the shaft c, gearing c³ct driving the
delivery rolls, which are geared to drive the cylinder, and the belt shifter devices and
operating means employing the wheel W with its studs or projections, and the
latch a,) and means which is capable of being changed, (here the detachable and
interchangeable gear-wheel c³ just above referred to,) for causing or ensuring, during
the period of time the let-off controller is being rotated, any required extent of
rotation thereof, together with the rotatable draw-rolls and rotatable twisters and
driving means therefor operative to ensure such relative and timely speeds of rotation
thereof, that during the let-off, the draw-rolls have proportionately a greater speed
relative to the speed of the twisters than at the interval between the let-offs.
By the provision in the spinning machine of the peculiar type to which this
invention pertains of instrumentalities and mechanisms for imparting thereto the
capabilities last above set forth, it becomes possible and entirely practicable to utilize
the machine for operating on roving having variety within a very wide range both as
to quality and the fineness or coarseness thereof, and for the production of yarns
either fine or coarse, having, as compared with the roving delivered from the spool,
much or little attenuation, and having intermediate between its delivery and its
winding onto the bobbins, comparatively little, or a great degree, of what in this art
is known as the "drawing twist."
For the production from any given roving of yarn which is excessively fine, I have
augmented the capability of the machine by the provision of a series of supplementa.
heads which have in operation the double function of giving an added drawing twist

page_text: to the roving and of also giving thereto in rapid succession, a series of alternate
tensionings and releases from tension, and the combination of such supplemental
head in the machine is shown in Figure 18 of the drawings, in which M represents
the supplemental head located directly above the twister head.
This head consists of a tubular body having journal steps 72 intermediate of which
is the grooved sheave 73, the upper spindle like portion 74 having the closed rounded
top 75, and, considerably therebelow, the sidewise opening aperture 76 leading into
the axial passage 77 continuing from the junction thereof down through the lower.
end of the device.
This supplemental head M is driven by driving band 79 from the drum 78 suitably
rotated in the same direction as the main twister head drum B, but at a somewhat
lower rate of speed than said twister bead drum.
The said head M is located just above the twister B, its axis being angular to the line
of the run of the roving from the delivery rolls to its side in which is the said
aperture 76 for the entrance of the roving into the passage leading therefrom down
through the head to also enter and pass to the twisting action of the twister head B.
The elongation or drawing of the roving is almost entirely performed in that
portion thereof between the delivery rolls and the head M, each rotation of the
head M imparting a twist to the roving between it and the delivery roll, which is
most properly regarded as the drawing twist.
The twister head B running faster (for instance, twice as fast as the head M, in the
same direction,) imparts between its jaws and the part of the roving in tension on
the cylindrical portion 74 of the said head M an additional twist, or a second twist, so
that there can be no breaking of the roving between the jaws of the twister B and the
draw roll within the short distance between them and also to prevent the roving from.
becoming parted anywhere between the draw-rolls and the place of tension engage-
ment on the part 74 of head M more especially at the time that this variable tension
exists in its greatest degree which is just before it has made a complete turn around
said portion 74 and has fallen off therefrom.
It will be explained that the elongation of roving results by the draft on the
roving between the draw-rolls and the delivery rolls, and in that portion having the
least degree of twist, that is, the portion between delivery rolls and head M, it
being understood that the excessive supporting twist between said head and the draw-
rolls is so considerable that while this portion of the roving is under as great, and
periodically, under greater tension than the roving above head M, the hardness and
extensiveness of its twist permits of little, if any, elongation, for that effect is
produced above said head M and by a combination of draft, twist, and rapid successive
tensionings and releasings, so that it is brought down entirely to the required fineness
at the time it engages and passes through the head M.
In Figures 19 and 20 of the drawings, I have shown driving connections for
imparting the variable speed to the drawing rolls which may be employed in
substitution of the cone driving mechanism illustrated in the preceding drawings,
and hereinbefore referred to, this driving mechanism in no way altering the action
or capabilities of the machine, but it can be run with less power than the cone
drive.
It is to be understood that the delivery rolls 23, 22 are intermittently driven in the
same manner as has been already described, and the drawing rolls are driven by the
sprocket-chain 43 during the delivery rotation of the delivery rolls, and when the roving
has been fully delivered, the belt b¹ is shifted onto the loose pulley be, said belt
being always around the constantly running pulley 64; and substantially the same
devices illustrated in Figure 17, may be utilized as the belt shifter mechanism,
in the corresponding manner as described in the foregoing portions of this
specification.
The pulley next to the pulley 6 is fast on the shaft C.
On the hub of the loose pulley be is a chain wheel 85 around which passes the
chain 86 which also passes around and drives the chain wheel 87 on the hub of which
is a pinion or gear-wheel 88 which meshes into a gear-wheel 89 on the shaft 90.

page_text: The scroll 92 is fast on said shaft. 90, and it has through the cord 93, a flexible
driving connection with the grooved drum 91 externally produced on the sleeve e²,
which is mounted in the same way on the drawing roll driving shaft e as has been
already described, the sleeve having the pawl " mounted thereon engaging in the
ratchet wheel e³ fast on shaft e.
Cord K has a winding engagement with grooved sleeve e² loosely mounted on
shaft e, the same supporting a weight, 95.
When belt is on loose pulley b, shaft 90 receives a constant and uniform speed
through the action of driving connections 85, 86, 87, 88 and 89 therefore driving
shaft, and the drawing rolls at a gradually decreasing speed as cord 93 is being
wound on scroll 92 from drum e, the grooves on parts 92 and e" being understood as
helical and continuous.
The weight cord K has its winding connection with the sleeve and drum e, so that
when the belt shifting apparatus shifts belt onto fixed pulley, the sleeve e is
reversely rotated by action of weight 95 and cord 93 thereby unwound from the scroll 92
and wound up on drum 94 until the descent of the weight is arrested by the stop or
stud 97 which may be adjustable as to height.
In spinning it being supposed that the relative time of delivery of roving to time
of draw has been adjusted, and also during said time, there has been delivered the
requisite amount of roving, at the instant this result is attained, the belt b¹ is
shifted on loose pulley b and scroll 92 through connections 93 and 91, ee begins
to rotate shaft e, and the draw-rolls 002. Therefore, the speed of shaft e, is,
comparatively fast when cord 93 is on the high part of scroll 92 and gradually
decreases as it nears the smaller part thereof and when the roving has been sufficiently
drawn, the belt 61 is shifted back onto the fixed pulley 6, whereupon during the
next roving delivery, weight 5 is permitted to descend and unwind cord 93 froin the
scroll onto the drum until the descent of the weight 95 has reached its limit, at just
the right instant as determined by the adjustable stop 97; this reversed rotation
of the sleeve e² is permitted, by the pawl clicking over ratchet and the loose
pulley has incidentally a rotational movement in unison with the scroll, because
of the described connections between said loose pulley and the scroll shaft 90, and
this is ail without affect on the shaft e in geared connnection with the drawing rolls
at this time being driven from the head works of the machine, that is, the roving
delivery mechanism.
This last described mechanism, while of lighter structure than the cone driving
mechanism and the means for shifting the cone belt 1 hereinabove described, tends
to simplify and cheapen the machine as well as to economize power, and is believed
to involve novelty and is accordingly claimed.
In the drawings are illustrated the mounting of the twister heads on common
supports or bars 100 for each side set thereof, which bars are endwise movable in
suitable ways 101 therefor, and means for imparting a bodily movement to each said
bar consisting of the connecting rod 102 operated by the eccentric pin 103 on the
shaft 104 having the worm wheel 105 which meshes into the worin 106 on the
vertical shaft 15.
This imparts a traversing motion to the twisters whereby the roving delivered
therefrom onto the draw-rolls is not so delivered constantly at one point and whereby
the wearing of grooves into the draw-rolls is prevented.
It will be perceived also in the drawings that below the paired drawing rolls are
rolls 110, 11 all on a common shaft having by belt 112 running around pulleys 113,
111 on the drawing roll shaft C, and on the common shaft for said rolls 110, a
rotation in unison with and in the same direction with the series of drawing rolls C²,
all to the end that broken yarns, which may occasionally tend to tangle the machine,
by coming upon said rolls 110 will be wound thereupon so that the attendant at such
time as he is able to splice the break, may readily do so and remove the slight
accumulation of the yarn from the take-up rolls.
The twister head used in duplicated series in this machine consists of a hollow

page_text: tubular cylindrical body 114 having sheave or whirl 115 thereon and a narrow yarn-
gripping finger 116 integrally formed and longitudinally extended.
Short ear-pieces 117 are provided on the end of the body 114 opposite said
finger 116, and a second yarn-gripping finger 118 is pivotally connected on said ear-
piece 117 and has a capability for a vibratory movement due to the passage of the
roving between the two fingers and it has an extension or arm 120 above its pivotal
connection, and laterally arranged relative thereto on which a weight 122 is adjustably
supported.
Under rapid rotation of the twister head; the centrifugal force of the weight causes
the finger 118 to pinch more tightly towards the finger 116, such pinching action
being lessened as the speed is lessened.
By adjusting the weight further up or down, the intensity of the bite of the
gripping jaws or fingers of the twister head may be regulated to suit varying kinds of
yarn. I have shown the twister head supports in Figures 1 and 5, in which views the
twisters are omitted, such twisters being shown in said supports in certain of the
other views.
Said supports consist of the members 123 pivotally clamped by the bolts 124 and
nuts 125 on the lugs 126 secured on said supporting bar 100, said members having
the approximately semicircular yokes 127 for the rest and support therewithin of the
twister head bodies, the whirls 115 thereof having space for occupancy between the
upper and lower ones of said yokes.
By loosening the nuts 125, the twister head supports may have their inclination
varied so as to present the twisters axially in the proper line relative to the course of
the roving and to deliver the latter directly to the nipping action of, and between,
the drawing rolls.
It will be perceived that the individual twister heads may be separately and
independently removed from the supports therefor just described.
The vibrator 24 is shown as in the form of a light longitudinally ranging frame
located along each side of the machine between the delivery rolls and the twisters.
the same comprising upper and lower members or rods 128, 128; and the vibrator
has the motion imparted thereto by the connection with the lever arm 129 thereof,
of the connecting rods 130 operated by the eccentrics 132 on the shaft 133 having by
belt and pulley shown in Figure 4, a connection whereby it is driven from the spindle
driving drum N.
The said vibrator has its movements between limits more or less as indicated by
dotted lines in Figure 7, whereby it exerts a beating action against the delivered
roving. The vibrator 24 for exerting the beating action against the roving between
the roving delivery and twisters is desirable in the use of the machine where yarns of
comparatively fine numbers are to be produced; for the coarser ruus the vibrator need
not be used, and for the excessively fine yarns the supplemental heads M, for
imparting the above described succession of tensionings and releasings on the rovings,
are employed at which time the vibrator is rendered passive, or removed.
The mechanism shown separately in Fig. 9 is the common form of building up
mechanism which gives the rising and falling motion to the bobbin frame.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
:-
--In a spinning machine, a let-off controller for the roving, and means for
intermittently and variably actuating said let-off controller, consisting of a constantly
running wheel, and mechanism of driving connection between such wheel and the
controller comprising means for rotating the controller for any required intervals
relative to the rotation of said constantly running wheel, and mechanism which is
capable of being changed for causing, during the period the controller is being
rotated, any required extent of rotation, rotatable draw-rolls, and rotatable twisters
and means for causing such relative speeds of rotation thereof that during the let-off,
the drawing rolls have a greater speed relative to the speed of the twisters, and

page_text: afterthe let-off, a slower speed relative to the speed of the twisters, substantially a
described.
-2-In a spinning machine adapted to receive a roving roll or spool, a mechanism
for causing intermittently the let-off of the rovings from said spool, which
mechanism is changeable at pleasure to cause, during the period of let-off, a
delivery of a greater or less quantity of the roving as required, combined with
drawing rolls and twisters and means for continuously speeding both rolls and
twisters which are operative to ensure the greatest extent of drawing relative to
amount of twisting during the let-off, and the greatest twisting relative to
amount of drawing after the let-off.
-3-In a spinning machine, adapted to receive a roving spool or roll, a let-off
controller for the roving, and a driving mechanisin for said controller comprising a
constantly rotating wheel, and an intermittently rotating wheel or part and means
for causing the latter to be driven periodically by said driving mechanism whereby
at pleasure during any given time of rotation of the intermittently running wheel,
the controller may be driven faster or slower and caused to deliver in such time a
correspondingly greater or less quantity of roving combined with drawing rolis and
twisters, and means for causing them to operate on the roving to impart thereto
proportionately the greatest amount of draft during the let-off and the greatest
degree of twisting of the roving relative to the drawing, after the let-off at which
stage in the operation the maximum twist required in the then most attenuated
roving.
-4-In a spinning machine, the let-off controller for the roving, and means for
intermittently actuating said controller, drawing rolis and mechanism for con-
tinuously and variably rotating same, whereby they have a greater drawing velocity
during the left-off than between the let-off, and mechanisin provided between the
place of roving delivery and said drawing rolls for imparting to the roving both a
drawing twist and a rapid succession of tensionings and releasings of the tension
on the roving whereby the roving before reaching the drawing rolls becomes
materially attenuated and receives a sufficient twist whereby it is sustained against
parting when subjected to the action of the drawing rolls, substantially as described.
-5 In a spinning. machine, a let-off controller for the roving, and means for
intermittently and variably actuating said let-off controller, consisting of a constantly
running wheel, and mechanism of driving connection between such wheel and the
controller comprising means for rotating the controller for any required intervals
relative to the rotation of said constantly running wheel, and means which is capable
of being changed for causing, during the period the controller is being rotated,
any required extent of rotation, rotatable draw-rolls, and rotatable twisters an
means for causing such relative speeds of rotation thereof that during the let-off,
the drawing rolls have a greater speed relative to the speed of the twisters, and
after the let-off, a slower speed relative to the speed of the twisters, and supplemental
twister heads operating in conjunction with said twisters for imparting to the roving
a preliminary twist and also such a succession of tensionings and releasings as to
materially attenuate the roving before it reaches the twisters and drawing rolls,
substantially as and for the purpose set forth.
-6 In a spinning machine, delivery mechanism for rovings, rolls to which the
roving is run, combined with a rotatable head having an axial passage therethrough,
and a sidewise opening leading to said passage for the entrance thereinto of the roving,
said head being mounted axially angular to the line of the run of the roving from its
delivery to said rolls, and means for rotating said head, all whereby, as a cylindrical
portion of said head turus, it imparts a succession of windings and let-offs of the
roving, thereon and therefrom, serving both to attenuate and to twist the roving,
substantially as described.
-7-In a spinning machine, delivery mechanism for roving, rolls to which the roving
is run, combined with a rotatable head having an axial passage therethrough, and a
sidewise opening leading to said passage for the entrance thereinto of the roving,
said head being mounted axially angular to the line of the run of the roving from its
B

page_text: delivery to said rolls, and means for rotating said head, all whereby, as said head
turns, it, by a cylindrical portion thereof above said sidewise opening, imparts a
succession of windings and let-off's of the roving, thereon and therefrom, serving both
to attenuate and to twist the roving, a second twister running faster than the above
stated head, and draw-rolls in close proximity to said second twister, substantially as
described.
-8-In a spinning machine, intermittently operating delivery mechanisin
for roving capable of being varied as to the duration of its delivery and also as to the
volocity of delivery during its time of delivery, drawing rolls to which the roving is
run, combined with a rotatable head having an axial passage therethrough, and a
side wise opening leading to said passage for the entrance thereinto of the roving, said
head being mounted axially angular to the line of the run of the roving from its
delivery to said rolls, and means for rotating said head, all whereby as said head
turns, it, by a cylindrical portion thereof above said sidewise opening, imparts a
succession of windings and let-offs of the roving, "thereon and therefrom, serving
both to attenuate and to twist the roving, a second twister running faster than the
above stated head, between same and said drawing rolls and in proximity to the
latter, and means for imparting to said drawing rolls successively, accelerated and
retarded rotational speedings, substantially as described.
9. The combination with-the-let-off-cylinder-for-controlling the-delivery-of-the
Fering and delivery rolls having driving-connection-therewith-whereby-the-eylinder
and-suid-rolls--are--rotated-in--unison, -of-a-constantly-driven-rotatable---part;-and
another-part-adapted to be-intermittently-rotated-and-having-driving-connection
with-said-connected--eylinder-und--delivery-rolls,--and--n-shiftable--connection-for-
driving-from-said-constant!-driven-part said second-named-rotatable-part,-and
mechanism-for-periodically and--alternately-moving-enid--shiftable--connection--in-
opposite-directions--for-intermittent!-netuating-the-let-off-cylinder-und--delivery
rolls-and-then-leaving-the-same-at-rest-substantially-ns-described.
9-19 The combination with the let-off cylinder for controlling the delivery of
the roving and delivery rolls having driving connection therewith whereby the
cylinder and said rolls are rotated in unison, of a constantly driven rotatable part, and
another part adapted to be intermittently rotated and having driving connection with
said connected cylinder and delivery rolls, the same comprising a changeable medium
of transmission whereby during the time said part which is adapted to be intermit-
tently rotated has its inovement, the extent of rotation of said let-off cylinder and
delivery rolls and roving delivery may be quantitively regulated as required, and a
shiftable connection for driving from said constantly driven part, said second named
rotatable part, and mechanism for periodically and alternately moving said shiftable
connection in opposite directions for intermittently actuating the let-off cylinder
and delivery rolls and then leaving same at rest, substantially as described.
14. The combination-with-the-let-off cylinder-for-controlling the-delivery-of-the
roving-and-delivery rolls having driving connection-therewith whereby the cylinder
and-said-rolls-are-rotated-in-unison,-of-a--constantly driven-rotatable-part, another
part-adapted-to-be--intermittently-rotated-and-having-driving-connection-with-cnid
connected-exlinder and delivery-rolls,-and-a-shiftable-connection--for-driving-from
said-constantly-driven part, said second-named-rotatable-parts-and-mechanism-for
periodically-and-alternately-moving-said-shiftable-connection-in-opposite-directions
for-intermittently-netuating-the-let-off-e; linder-and-delivery-rolls-and-then-leaving
the-same-at-rest, snid--mechanism-being-adapted-to-vary the instants-of-its moving
caid-shiftable-driving-connection-to-drive relative-to-the-time-it-places-it-in-its-non-
driving position, whereby-the-period-of-roving-delivery-relative-to-the-period-of
non-delivery-may-be-governed; substantially as described.
10-12 The combination with the let-off cylinder for controlling the delivery of
the roving and delivery rolls having driving connection therewith whereby the
cylinder and said rolls are rotated in unison, of a constantly driven rotatable part,
and another part adapted to be intermittently rotated and having driving connection
with said connected cylinder and delivery rolls, the same comprising a changeable

page_text: medium of transmission whereby, during the time said part adapted to be intermit-
tently rotated has its movement, the extent of rotation of said let-off cylinder and
delivery rolls, and the roving delivery may be quantitively regulated as required,
and a shiftable connection for driving from said constantly driven part, said second
named rotatable part, and mechanism for periodically and alternately moving said
shiftable connection in opposite directions for intermittently actuating the let-off
cylinder and delivery rolls and then leaving same at rest, said mechanism being
adapted to vary the instants of its moving said shiftable driving connection to drive
relative to the time it places it in its non-driving position whereby the period of
roving delivery relative to the period of non-delivery may be governed, substantially
as described.
11-13 The combination with the let-off cylinder for controlling the delivery of
the roving and delivery rolls having driving connection therewith whereby the
cylinder and said rolls are rotated in unison, of a constantly driven rotatable part,
another part adapted to be intermittently rotated and having driving connection with
said connected cylinder and delivery roll, and a shiftable connection for driving
from said constantly driven part, said second namned rotatable part, and mechanism
for periodically and alternately moving said shiftable connection in opposite directions
for intermittently actuating the let-off cylinder and delivery rolls and then leaving
the same at rest, said mechanism being adapted to vary the instants of its moving
said shiftable driving connection to drive relative to the time it places it in its non-
driving position, whereby the period of roving delivery relative to the period of
non-delivery may be governed, and constantly running twisters and constantly
running drawing mechanism to the action of which the delivered roving passes, and
means for varying the speed of the drawing rolls, so that they will have the greater
running speed relative to the twisting during each let-off period, substantially
as described.
12-14 The combination with the let-off cylinder for controlling the delivery
of the roving and delivery rolls having driving connection therewith whereby the
cylinder and said rolls are rotated in unison, of a constantly driven rotatable part,
and another part adapted to be intermittently rotated and delivery rolls, the same
comprising a changeable medium of transmission whereby during the time said part
adapted to be intermittently rotated has its movement, the extent of rotation of said
let-off cylinder and delivery rolls and roving delivery may be quantitively regulated
as required, and a shiftable connection for driving from said constantly driven part,
said second named rotatable part, and mechanisin for periodically and alternately
moving said shiftable connection in opposite directions for intermittently actuating
the let-off cylinder and delivery rolls and then leaving same at rest, said mechanism
being adapted to vary the instants of its moving said shiftable driving connection to
drive relative to the time it places it in its non-driving position whereby the period
of roving delivery relative to the period of non-delivery may be governed, constantly
running twisters and constantly running drawing mechanism to the action of which
the delivered roving passes, and means for varying the speed of the drawing rolls,
so that they will have the greater running speed relative to the twisting during
each let-off period, substantially as described.
13-15 The combination with the let-off cylinder for controlling the delivery
of the roving and delivery rolls having driving connection therewith whereby the
cylinder and said rolls are rotated in unison, of a constantly driven rotatable part,
and another part adapted to be intermittently rotated and having driving connection
with said connected cylinder and delivery rolls, and a shiftable connection for driving
from said constantly driven part, said second named rotatable part, and mechanism
for periodically and alternately moving said shiftable connection in opposite directions
for intermittently actuating the let-off cylinder and delivery rolls and then leaving
the same at rest, and drawing mechanism and twisting mechanism, means for
constantly and uniformly rotating the twister mechanism, and driving connection
hetween the intermittently operating driving mechanism for the roving let-off,
and said drawing mechanism, whereby the latter is driven thereby, at the time of

page_text: let-off, and other mechanism having a variable driving speed and also in driving
connection with the drawing mechanism, whereby, after each let-off, said last named
mechanism drives the drawing mechanism less fast than its driving during the let-off,
substantially as described.
14-16 The combination with the let-off cylinder for controlling the delivery
of the roving and delivery rolls having driving connection therewith whereby the
cylinder and said rolls are rotated in unison, of a constantly driven rotatable part, and
another part adapted to be intermittently rotated and having driving connection
with said connected cylinder and delivery rolls, the same comprising a changeable
medium of transmission whereby during said part which is adapted to be
intermittently rotated has its movement, the extent of rotation of said let-off
cylinder and delivery rolls and roving delivery may be quantitively regulated as
required, and a shiftable connection for driving from said constantly driven part,
said second nained rotatable part, and mechanism for periodically and alternately
moving said shiftable connection in opposite directions for intermittently actuating
the let-off cylinder and delivery rolls and then leaving same at rest, and drawing
mechanism and twisting mechanism, means for constantly and uniformly rotating
the twister mechanism, and driving connection between the intermittently operating
driving mechanism for the roving let-off, and said drawing mechanism, whereby the
latter is driven thereby, at the time of let-off, and other mechanism having a
variable driving speed and also in driving connection with the drawing mechanism,
whereby, after each let-off, said last named mechanism drives the drawing mechanism
less fast than its driving during the let-off, substantially as described.
15-17 In a spinning machine, the combination with intermittently operating
roving delivery mechanism, continuously rotating twisters and continuously rotating
drawing mechanism, of a driving connection between the delivery mechanism and
the drawing mechanisin whereby the latter is driven from the former during the
period of let-off, and other mechanism, whereby the latter is driven slower during the
periods between successive let-offs than during the let-offs, substantially as and for
the purpose set forth.
16-18 In a spinning machine, the combination with let-off controlling and
delivery mechanism for the roving, of intermittent driving mechanism therefor
comprising a shaft c in driving connection with said let-off and delivery mechanism,
a rotary part having driving connection with said shaft, a shiftable driver for said
intermittently rotatable part, and a shifter therefor, a constantly rotating wheel as W
having at separated points thereon, abutment members, the lever P connected with
said shifter which one of said abutments acts, a latch or detent for detaining said
lever and the connected shifter in one of its shifted positions, having a position to be
engaged and released by the other abutment on said wheel W, substantially as
described.
17 10 In a spinning machine, the combination with let-off controlling and
delivery mechanism for the roving, of intermittent driving mechanism therefor
comprising a shaft c in driving connection with said let-off and delivery mechanism.
a rotary part having driving connection with said shaft, a shiftable driver for said
intermittently rotatable part, and a shifter therefor, a constantly rotating wheel W
having at separated points thereon, abutment members, the lever P connected with
said shifter against which one of said abutments acts, a latch or detent for detaining
said lever and the connected shifter in one of its shifted position, having a position to
be engaged and released by the other abutment on said wheel W, and a brake device
operating to engage and disengage said intermittently rotated part when the driver
is shifted therefrom and thereon, substantially as described.
18 20 In a spinning machine, the combination with let-off controlling and
delivery mechanism for the roving, of intermittent driving mechanism therefor
comprising a shaft c in driving connection with said let-off and delivery mechanism,
a rotary part having driving connection with said shaft, a shiftable driver for said
intermittently rotatable part, and a shifter therefor, a constantly rotating wheel W
having at separated points thereon, abatiment members, which are adjustable so as to

page_text: be much or little in advance one of the other, as required, the lever P connected with
said shifter against which one of said abutments acts, a latch or detent for detaining
said lever and the connected shifter in one of its shifted positions, having a position
to be engaged and released by the other abutment on said wheel W, substantially as
described.
19 In a spinning machine, the combination with let-off controlling and
delivery mechanism for the roving, of intermittent driving mechanism therefor
comprising a shaft c, and adjustable and interchangeable gearing between it and said
let-off and delivery mechanism, a rotary part having driving connection with said
shaft, a shiftable driver for said intermittently rotatable part, and a shifter therefor,
a constantly rotating wheel as W having at separated points thereon, abutment
members, the lever l' connected with said shifter against which one of said abutments
acts, a latch or detent for detaining said lever and the connected shifter in one of its
shifted positions, having a position to be engaged and released by the other abutment.
on said wheel W, substantially as described.
20-22 In a spinning machine, the combination with the let-off controlling
cylinder and delivery rolls having connection therewith, whereby both are moved
in unison, of the shaft c connected to drive said delivery rolls and cylinder and having
thereon fixed and loose pulleys, a belt shiftable to run on either said pulley and a belt
shifter, the wheel W having a continuous rotation and provided with the projection 53
and the projection g, the lever P connected with the shifter, and the latch a, said
lever being swung to shift in one direction by one of said projections, whereupon it is
engaged and temporarily held by the latch, and the latch having a location whereby
it is engaged subsequently in each rotation of said wheel W, by its other projection,
and released to permit the lever to be returned to its original position, and retracting
means for returning said lever and shifter, substantially as described.
21-23 In a spinning machine, the combination with the let-off controlling
cylinder 20 and the shaft c, delivery rolls connected to have their movements in
unison with the movements of said cylinder, said delivery rolls being intermittently
driven by said shaft c, the latter having thereon the gear-wheel c, an adjustable
journal sleeve c² having supported thereon the shaft c provided with the interchange-
able gear and having thereon fixed and loose pulleys 65 60, the driving belt and a
shifter therefor whereby it is run on either of said pulleys, and means for alternately
operating said shifter and intermittently causing the rotations of said connected
shafts c and of the cylinder and delivery rolls, for the purposes set forth.
22-24 In a spinning machine, in let-off delivery mechanism therefor, the com-
bination with cylinder 20 and delivery rolls and shaft c having driving connection with
said delivery rolls and cylinder, and provided with the fixed and loose pulleys, of the
belt shifter g and a reciprocating support therefor, lever P, and lever g connected to
the belt shifter support, the rod g¹ connecting said lever P and lever g², the latch a,
ard the constantly rotating wheel W having at different points around same, the
abutments g and 53, substantially as and for the purposes set forth.
235 In a spinning machine, the combination with a let-off controller and
delivery rolls, and means for intermittently operating them, of drawing rolls, one
series thereof mounted on a common shaft provided with a sprocket-wheel, a sprocket-
wheel loosely mounted on the common shaft for one series of the delivery rolls, and
having thereon a pawl, a ratchet-wheel fixed on said delivery roll shaft in which said
pawl engages, the sprocket-chain connecting said sprocket-wheels, all whereby the
drawing rolls are positively intermittently driven, concurrently with the rotations of
the roving delivery mechanism, and mechanism also having driving connection with
the said drawing rolls, whereby the latter are driven after the let-off at a different
speed, substantially as described.
24-29 In a spinning machine, the combination with let-off controlling and
delivery mechanism for the roving and means for intermittently operating it, cor.-
tinuously running twisters and continuously running drawing rolls, driving connections
between the delivery mechanisin and the drawing rolls whereby part of the time, the
latter are driven by and in unison with said delivery mechanisın, of a shaft also in

page_text: driving connection with said drawing rolls, and means for constantly driving it, but at
a diminishing speed at the intermediate periods between the operations of the delivery
mechanism, substantially as and for the purposes set forth.
25-27-In a spinning machine; the combination with lei-off controlling and
delivery mechanism for the roving and means for intermittently operating it, con-
tinuously running twisters and continuously running drawing rolls, driving connections
between the delivery mechanism and the drawing rolls whereby part of the time the
latter are driven by and in unison with said delivery mechanism, of a shaft also in
driving connection with said drawing rolls, having a fixed ratchet-wheel thereon and
having a sleeve loose thereon carrying a pawl, and means for imparting variable speed
rotations to said sleeve whereby it, through the pawl and ratchet device, variably
rotates the sleeve-supporting shaft, substantially as and for the purpose set forth.
26-28 In a spinning machine, the combination with the delivery rolls, the
common shaft of one series thereof being provided with the fixed ratchet-wheel and a
loose wheel carrying a pawl in engagement with said ratchet-wheel, of the drawing
rolls, the common shaft of one series thereof having a fixed wheel thereon and a driving
connection between the latter and said loose wheel carrying the pawl, a shaft ein driving
connection with said drawing rolls having thereon the fixed ratchet-wheel e³ and a
sleeve e carrying the pawl e, and means for imparting a rotary motion to said sleeve
with a variable speed, substantially as described.
27-20 In a spinning machine, the combination with delivery rolls and inter-
mittently operating driving mechanism therefor, and drawing rolls having driving
connection with said delivery rolls to be intermittently driven therefrom, of a shaft in
driving connection with said drawing rolls, having thereon a loose drum adapted, by a
provided pawl and ratchet-wheel, for an engagement with said shaft when rotated in
one direction, the drum being permitted to reversely rotate independently of the
shaft, a scroll pulley having by a cord a winding and unwinding connection with said
drum, means for imparting, when permitted, an unwinding rotation to the drum, a
pulley or wheel and a shiftable driving connection whereby the same is intermittently
rotated, and driving connections between said wheel and said scroll pulley,
substantially as and for the purpose set forth.
28-30 In a spinning machine, the combination with delivery rolls and inter-
mittently operating driving mechanism therefor, and drawing rolls having driving
connection with said delivery rolls to be intermittently driven therefrom; of a shaft in
driving connection with said drawing rolls; having thereon a loose drum adapted by
a provided pawl and ratchet-wheel for an engagement with said shaft when rotated in
one direction, the drum being permitted to reversely rotate independently of the shaft,
a scroll pulley having by a cord a winding and unwinding connection with said drum,
a weighted cord having a winding and unwinding engagement with the drum, a
pulley or wheel and a shiftable driving connection therefor whereby the same is
intermittently rotated, and driving connections between said wheel and said scroll
pulley, substantially as and for the purpose set forth.
29-31 In a spinning machine, the combination with delivery rolls and inter-
mittently operating driving mechanism therefor, and drawing rolls having driving
connection with said delivery rolls to be intermittently driven therefrom, of a shaft
in driving connection with said drawing rolls, having thereon a loose drum adapted
by a provided pawl and ratchet-wheel for an engagement with said shaft when rotated
in one direction, the drum being permitted to reversely rotate independently of the
sbaft, a scroll pulley having by a cord a winding and unwinding connection with said
drum, a weighted cord having a winding and unwinding engagement with the druin,
an adjustable stop for variably limiting or arresting the descent of the weight, a
pulley or wheel, and a shiftable driving connection therefor whereby the same is
intermittently rotated; and driving connections between said wheel and said scroll
"pulley, substantially as and for the purpose set forth.
30 32 In a spinning machine, the combination with the delivery roll shaft c³ and
shafte in driving connection therewith, having thereon loose and fixed pulley
wheels and the constantly running belt, and an automatically operating belt

page_text: shifter, of the scroll pulley 92 and its shaft 90 having the gear-wheel 89, the wheel 97
and gear-wheel 88 therewith connected, meshing into said gear 89, a wheel 85 mounted
on the hub of said loose pulley 65, a driving connection between said wheels 85 and 87,
the drawing roll shaft C, the shaft e having driving connection therewith, and having
thereon the fixed ratchet-wheel 3 and loose drum e² having the pawl e, the cord 93
having winding and unwinding engagements around the said scroll pulley and drum,
and the weighted cord K, all substantially as and for the purposes set forth.
33-In--a-spinning machine; the--combination with----delivery mechanism--for
rovings;-twister-and-drawing-rolls,-and-bobbins-of-a-roll-located-adjacent-each-pair
of draw rolls-and-between--same-and-the-bobbins-on-which-the-rovings-in-tension
between-the-draw-rolls-and-bobbins, if-severed,-will-fall,-and-on-which-they-will-be
wound,-avoiding-tangle,and-means-for-rotating-said-take-up-rolls-in-unison-with-the
draw-rolls,-substantially as deseribed.
34-In-u-spinning machine, the combination-with-delivery-mechanism-for-roving
and-paired-series of drawing rolls, of--twister-heads--adjacent-the-draw-rolls-and
between-them--and the delivery mechanism, a movable-rail or bar on which-said
twister-heads-are-mounted;-a-shaft-101-and-means for imparting-rotation thereto
having thereon an eccentric-pin-and-a-connecting-rod-between said eccentric-pin-and
said-movable-twister-head-supporting bar-substantially-as-and-for-the-purpose-set
forth.
31-35-In a spinning machine, in combination, intermittently and successively
operating let-off mechanism for controlling the delivery of the rovings, drawing rolls
having continuous rotary motion to which the rovings are run from the delivery
mechanism, means for driving said drawing rolls faster during the let-off than in the
period thereafter, and twisters separate from, but adjacent the drawing rolls, and in-
tervening between the latter and the delivery mechanismn, to the twisting action of
which the rovings are subjected previous to passing between the drawing rolls, and
means for rotating the twisters, substantially as described.
35-In-n-spinning machine;-the-combination with delivery-mechanism-for-roving
between-the-latter-and-the-delivery-mechanism--consisting of-burs-or--members
having--separated-approximately--semicircular-yokes, and--twister---hends--inter-
medinte! provided-with--whirls--or driving--pulleys,-having--cylindrical--portions
thereabove-and-therebelow which-are-adapted to be set-and-retained-for-rotation
within-said-semicirenlar-yokes, substantially-as-described.
and-paired-drawing-rolls-of-twister-head-supports--adjacent-the--drawing-rolls and
32-37 In a spinning machine, the combination with delivery mechanism for
roving, and paired drawing rolls, of a bar ranging above and adjacent the drawing
rolls provided with a series of lugs 126, the twister head supports comprising bars or
bodies provided with the separated substantially semicircular yokes, the bolts and
nuts 124, 125 for adjustably confining said supports on said lugs and twister heads,
provided with whirls or driving pulleys at intermediate portions of their bodies, and
having cylindrical portions thereabove and therebelow fitting for rotation within said
yokes, substantially as and for the purposes set forth.
28 In-a-spinning-machine, the-combination-with-roving-delivery-mechanism-and
the-bobbins-of a device interposed-between-the--delivery-mechanism-and-bobbins
operative--to---impart-in-rapid-succession;-series-of-tensionings-and-releases-to-the
delivered-roving-the-tendeney-of-which-is-to-elongate-the-same.
30 In-a-spinning-machine, the-combination-with-roving-delivery-mechanism-und
the-bobbine-of-a-device-interposed--between--the-delivery-mechanism-and-bobbins
operative-to-impart-in-rapil succession,-a-series-of-tensionings-and releases-and-also
twistings to the-delivered-roving between the place-of-delivery-and-the-bobbins;-for
the-purposes-set-forth.
33-40-A twisting head for spinning and analogous machines consisting of a
revoluble tubular body having a fixed, longitudinally extending yarn-gripping finger
thereon, combined with a second similar finger pivoted on said head, the lower end
of which swings opposite, aud against the side of said fixed finger, and a weighted

page_text: extension on the upper end of said pivoted finger above the fulcrum thereof,substan
tially as set forth.
3444 A twisting head for spinning and analogous machines, consisting of a
rovoluble tubular body having a fixed longitudinally extending yarn-gripping finger
thereon, combined with a second similar finger pivoted on said head the lower end of
which swings opposite and against the side of said fixed finger, an arm on said pivoted
finger extending above the fulcrun thereof, and a weight adjustably secured on said
arm, substantially as set forth.
Dated this 22nd day of February 1898.
WHEATLEY & MACKENZIE
40 Chancery Lane London, W.C. Agents.