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Патент USA US3091921

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June 4, 1963
Filed May 10, 1960
4 Sheets-éheet 1
June 4, 1963
Filed May 10, 1960
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4 Sheets-Sheet 2
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June 4, 1963
Filed May 10, 1960
4 Sheets-Sheet 3
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June 4, 1963
Filed May 10. 1960
4 Sheets-Sheet 4
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United States Patent 0 ”
3,691 ,9 l l
Patented June 4, 1963
drawing rolls. The preliminary twist is imparted to the
roving by drawing it from the end of a package of roving
John Turner, Newton, Mass.
(4 Colbert Road, West Newton, Mass.)
Filed May 10, 1960, Ser. No. 28,096
on a spool or bobbin and at the same time rotating the
spool or bobbin on its axis. The speed of such rotation is
regulated in accordance with the amount of preliminary
3 Claims. (Cl. 57-135)
twist to be put in the roving ‘at any stage of a spinning
This invention relates to a unit mechanism for spinning
operation. This regulation of speed of rotation of the
roving spool is brought about, according to the invention,
a roving into :a thread or yarn with :a uniform twist, the
by ‘a vari-speed drive mechanism controlled by a suitable
mechanism being arranged for convenient and effective 10 feeler bearing against the roving package on the supply
control, for rapid ope-ration and for quick and easy serv
spool. As the diameter of the roving package decreases,
icing. The modern conventional spinning frame is a
the feeler swings inward toward the axis of the spool and
long structure with many spindles mounted thereon to be
driven by connections with a single central drive shaft.
causes an increase in the speed of rotation of the roving
If 'any of the individual spindles or the mechanism asso 15
For a more complete understanding of the invention,
ciated with it is in need of repm'r-s, it is usually necessary
reference may be had to the following description of an
to shut :down the entire frame, with a resulting loss of
embodiment thereof, and to the drawings, of which
production which may be considerable. According to the
FIGURE 1 is a side elevation of a spinning unit em
present invention each spindle is part of a separate, inde
the invention;
pendently driven unit which is provided with conven 20
FIGURE 2 is a plan view of the same;
iently accessible controls for the production of yarn
FIGURE 3 is a rear elevation of the same;
twisted in the desired direction with the desired number
FIGURE 4 is a fragmentary side elevation, on a larger
of turns per inch. The unit is designed to be operated at
of the upper portion of the unit as seen from the
speeds substantially in excess of those now considered to
left in FIGURE 3;
be maximum in commercial production. Each unit has 25
FIGURE 5 is a fragmentary sectional view on the line
its own drive and controls so that the various kinds of
of FIGURE 3, on a larger scale;
yarn can be produced simultaneously on a group of such
FIGURE 6 is a fragmentary perspective view, on a
units. Each unit can be stopped and repaired without in_
larger scale, of the roving spool and some of the speed
terrupting or interfering with the operation of any of the
other units present. The working parts of each unit are 30 control mechanism;
FIGURE 7 is a fragmentary section on the line 7—7
encased in a compact housing which occupies little ?oor
of FIGURE 3, on a larger scale;
space, but the construction is such that the parts within
FIGURE 8 is a front elevation of the spinning unit
the housing ‘are readily accessible.
shown in FIGURE 1 ;
On the conventional spinning frame of the ring type
FIGURE 9 is a vertical section of the spindle;
the roving is led from the drawing rolls through a traveler 35
FIGURE 10 is a rear elevation of the upper portion of
on the ring and thence to the spindle, the roving being
mechanism shown in FIGURE 3, but on a larger
spun into yarn in the process. The spindle is rotated at
sca e;
a high speed ‘and the tension on the yarn causes the trav
FIGURE 11 is a section on the line ill-11 of FIGURE
eler to revolve around the ring at ‘a slightly lesser rate to
twist the roving into ‘a yarn which is then wound on the 40 9, on a larger scale;
bobbin carried by the spindle. The roving is fed from
the drawing rolls at a constant rate but the yarn is taken
up by the bobbin at an increasing rate ‘as the yarn pack
age on the bob-bin increases in diameter. ilif the rotation
of the spindle is constant, the rotation of the traveler in 45
creases ias the yarn package on the bobbin changes, thus
varying twist in the yarn.
FIGURE 12 is an elevational View of the spindle, ?yer
and supporting means therefor;
FIGURE 13 is a section on the line 13-13 of FIG
URE 12;
FIGURE 14 is a front elevational view of mechanism
for traversing the spindle;
FIGURE 15 is a section on the line 15——15 of FIG
According to the present invention, a spinning mecha
URE 14;
described, the spinning mechanism is of the ?yer-frame
belt; and
FIGURE 16 is a fragmentary magni?ed elevational
nism is provided by which the twist put in the yarn can be
carefully controlled and made uniform. As hereinafter 50 view, partly in section, of a joint for the ends of a power
type but is constructed for high-speed operation with a
controlled uniformity of the twist put in the yarn. For
this purpose, the spindle and flyer are driven at constant
FIGURE 17 is a wiring diagram of the electrical con
speeds which diifer, the speed of rotation of the flyer being
balloon between the drawing rolls and the bobbin which
single-spindle unit enclosed for the most part in a hous
mg 20 which can conveniently be made of sheet metal.
The housing 20 is preferably vertically elongated to oc
iloo-r space and is hinged at its lower
in ring spinning seriously limits the maximum feasible
end to the ?oor as at 22 so that it can be swung forward
preferably somewhat less than that of the spindle. The
use of a ?yer completely eliminates the formation of a
_ The spinning frame illustrated on the drawings is a
speed of operation. As the yarn package on the bobbin 60 to incline into the aisle in front of the unit so as to
pnovide access through the side walls of the housing to
increases in diameter, the speed of rotation of the spindle
the mechanism in the interior thereof. The lower por
being constant, it is evident that the yarn will be wound
tion of the housing 20 is between parallel walls 24 on
on the bobbin at an increasing linear rate. Hence it will
one of which is a jointed arm consisting of two liniss
be necessary to speed up the rate of feed from the drawing
rolls accordingly. As the speed of rotation of the ?yer is 65 26 and 28 pivotally joined at 39. The other end of the
link .26 is pivotally attached to a wall 24. At the other
constant, this means that fewer twists per inch will be put
into the yarn as it travels from the drawing rolls to the
bobbin. To compensate for this reduction in twists, addi
tional twists are put in the roving before it reaches the 70
drawing rolls. An object‘ of the invention is, to control
such preliminary twists in the roving before it reaches the
end of the link 28 is a handle 32 and a notch 34. The
latter is arranged to engage on a pin 36 projecting from
the housing 2t}. When the housing 20 is upright, the
links 26 ‘and 28 come together and rest on the upper
edge of the wall 24. .When the housing 20 is tilted ‘for
ward, the links open out to hold the housing at a limit
8,0 9 1,911
ing angle of inclination if the pin 36 is engaged in the
notch 34. If the unit is one of a number of such units
disposed lclosely side by side to conserve ?oor space,
the side walls'of- the housing are made accessible by
the forward tilt, thus providing ‘access to the mechanism
within the housing for ‘adjustment or repairs.
Mounted at the rear of the housing 26 is a verica-l
stem 50 adapted to receive and support a spool or bobbin
51 on which a package 52 of roving has been wound.
and the lower portion of each ?nger extends below the
ring 126 so that the ring limits the outward swing of
the idle guide ‘?nger when the spindle and cage are ro
tating. Two guide ?ngers are provided, as shown, for
dynamic balance of the ?yer to prevent excessive vibra
tion at high speeds, but only one of the ?ngers is used
at a time.
The lower disc 118 of the flyer surrounds
the spindle 140, hereinafter described, and acts ‘as a bear
ing to prevent gyration of the ?yer when rotating at
This is the supply package from which the roving is drawn 10 high speeds.
The spindle 140 is coaxial with the ilyer and comprises
to be twisted into a yarn. The stem 59 is mounted on
wheel 57 on the shaft of a motor '60‘ mounted in the
a number of nested tubes shown in FIGURE 9. At the
core of the spindle 140 is a ?xed rod 142, the lower end
of which is secured to a horizontal platform 144 at or
as it is drawn from the upper end of the package. _
is an inner tube 146 which moves vertically but does not
or is a part of a vertical shaft 54 which has a pulley ,
wheel 55 suitably connected by a belt 56 to a pulley
lower portion of the housing 26 for rotating the roving 15 near the bottom of the housing 20. Slidably surrounding
the rod 142 and extending beyond the upper end thereof
package 52 to a put a preliminary twist in the roving
Mounted on extensions 58, ‘59 of the side walls of
the housing 20 and at the rear thereof above the sup
port for the moving package are two vertically spaced
pairs, of drawing rolls 62,‘ 64 and 66, 68 (FIGURES 4
and 10).
The inner rolls 62 and 66‘ are mounted re
rotate. Vertical reciprocating movement of the tube 146
is brought about by a collar 148 secured to the lower end
of the tube and also to a loop of chain 150 (FIGURE
14) which passes over two sprocket wheels 152, 154.
The chain 150 also meshes with an idle sprocket wheel
156 which normally holds the chain in meshed engage
ment with a driving sprocket wheel 158. The latter is
spectively on shafts 70 and Y72' journalled in the frame
of the housing 20. The shaft 70 mso has two sprocket
wheels 74'and 76. The sprocket wheel 74 is connected 25 rotated slowly through reduction gearing by an electric
motor 160. The traversing movement of the spindle
by ‘a chain 78 ton smaller sprocket wheel 80 :on the
can be readily stopped at any time without interrupting
shaft 72 so that the shaft 72 is driven from the shaft
the operation of the rest of the apparatus by shifting the
70 but at a faster rate so as to draw the roving as it
idler 156 so that the chain is out of contact with the
moves from the lower drawing rolls '62, 64 to the up
per rolls 66, 68. The other sprocket wheel 76 on the 30 rotating sprocket wheel 158. For this purpose the idler
' shaft 70 is‘connected by a chain 82 to‘ a sprocket wheel
‘84 driven by a motor 86 mounted conveniently on the
rear wall of the housing 20. The outer roll 64 of the
lower pair is rotatably carried by the upper arm of a
U-shaped bracket 90, the lower arm of the bracket being
journalled in the frame of the housing 26. A spring 92
156 is carried by a pivoted bracket (not shown) which
has an arm 162 by which it can be rocked, a ?exible wire
164 for this purpose extending from the arm 162 to a
knob 166 at the front of the housing (FIGURE 8). The
35 traversing movement of the spindle is automatically re
ciprocating, the motor 160 being a reversible motor con
trolled by a reversing switch 168, which is in series with
is biased to press the roll 64 against the roll 62.. In
a manually operable switch 169. The switch lever of
like manner the outer roll 68 of the upper pair is carried
the switch 168 is attached to a vertically movable rod 170
by a similarly mounted bracket 94 which is biased by a 40
carrying two adjustably spaced lugs 172, 174. These
spring 96 to press the roll 68 against the’ roll 66. To
lugs are alternately engaged by a projection 176 on the
facilitate threading the roving between'the drawing rolls,
collar 148 to trip the switch 168 and reverse the direc
a vertically slidable plate 160 is mounted on the side
tion of movement of the spindle tube 146. To reduce
wall extension 59. When the plate is pushed down man
load imposed on the motor 160 when the spindle
nail-y from its normal position shown in FIGURE 4, 45 the
parts 146 and 18% are being raised in a traversing move
cam'edges 102 and 1114 press on the upper arms of the
ment, a spring .175 is compressed within the tube 146 be
brackets 90 and 94 to swing the rolls 64 and 68 out away
tween a plug 177 in the upper end of the tube and the
from the rolls 62 and 66 so that the roving can easily be
inserted between the rolls of each pair.
From the upper drawing rolls 66, 63' the roving goes
over a, guide roll 110 on the top of the housing ‘20, then
vertically down through a tubular shaft'112 at the upper
end of a flyer 114 which comprises an upper ‘disc 116
and a lower disc 118 connected by two side bars 126, 122.
Since the iiyer is to be rotated at high speeds, the side
bars are made as light as possible and the lower portions
thereof are reinforced by rings 124, 126 to counteract
centrifugal forces. The upper portion of the ?yer'must
be ‘kept clear to permit dotting. Hence the upper portions
top of the rod 142. The spring carries most of the weight
of‘the vertically movable parts of the spindle and thus
permits the use‘ of a small motor for traversing the
The tube 146 is connected by a ball bearing 178’ at its
upper end to an-outer tube 180 which thus moves verti
cally with the inner tube 146 but is also free to be rotated,
which the tube 146 is not. On the outer tube 180' are
rings 182,184- to ?t inside a bobbin 185 to support the
To rotate the outer tube 180 and the bobbin
thereon, an intermediate tube 186 is nested between part
of the inner tube 146 and part of the outer tube 180.
of the side bars are reinfonced‘by a stiff strip 128 se 60 The, lower end of the intermediate tube 186 is in a ball
cured to the inner faces of the side bars.
bearing'188 mounted on a part of the frame within the
The roving, which has been given a preliminary twist
housing 20. Just above the bearing 188 is a pulley
when leaving the supply package, goes through the draft
wheel 190 connected by a belt 192 to a pulley wheel 194
ing zone between the pairs of drawing rolls, then over
on the shaft of a motor 196. The pulley wheels 1911,
the guide roll 110 and down through the tubular shaft
194 are preferably of the multiple sheave type so that ~
112. From the lower end of the shaft 112, the roving
the belt can be shifted to operate the spindle at different
goes to a guide consisting of a curled back margin of
speeds. The intermediate tube 186 has a second ball
one of the side bars ‘126, 122, both of these side bars
having their margins curled back, as indicated in FIG ' bearing 198 mounted on a frame member within the
URE 13, so that either of the side bars can be used as 70 housing 20 at a point spaced from its lower end.- At its
upper end the tube 186 has an outwardly projecting key
the guide. About half-way down the side bars a guide
200 which engages in a vertical slot 292 through the wall
?nger 136 is hinged to each side bar to guide the yarn’
from the side bar to the yarn package which is accumu- ' of the outerrtube 180 so that the tube 180 is rotated by
the intermediate tube 186 but is free also to move verti~
lating on the bobbin. The upper edge of each guide
cally with the inner tube 146. Thus a bobbin on the spin
?nger 130 is curled down as at 132‘to guide the yarn,
die 14% has simultaneous rotating and vertical traversing
and chain 274 to move the contact arm 276 of the rheo
stat 242, thereby varying the speed of the roving motor
The ?yer 114 is preferably rotated at a speed which
is a constant fraction of the speed of rotation of the
spindle 14d. For this purpose driving connections are
For convenient control of the various parts of the
wheel 264 is mounted on the driven tube 186 just above
the bearing 198 and is connected by a belt 2% to a pulley
mechanism, the control knob 166 and knobs for the
switches 169, 239, 235 and 241 are grouped together
on the front of the housing 2%.
In tending a long line of spinning units, it is important
wheel 298 on a vertical shaft 210 which extends upward
to know at once where any failure occurs. For this pur
provided between the spindle and the ?yer. A pulley
nearly to the top of the housing 213. On the upper end 10 pose each unit is provided with a signal, such as a lamp,
of the shaft 210 is a puhey wheel 212 connected by a
belt 214 to a pulley wheel 216 mounted on the tubular
?yer shaft 112. The pulley wheels 2G4, 268, 212 and
which operates at once when there is a break in the rov
ing. A feeler wire 289 is mounted on the top of the
housing 20‘ to bear lightly on the stretch of roving ex
216 are preferably of the vari-speed type so that ad
tending from the upper drawing rolls to the guide roll
justments in the relative speeds of the spindle and ?yer 15 110. The feeler when supported by the roving holds
can easily be regulated.
For driving connections any suitable belts or chains
a microswitch 282 closed in the power circuit which
operates the various motors in the unit. If the roving
breaks, it lets the feeler fall, causing the switch to open
the circuit through the motors and at the same time clos
belt is effective. The ‘ends can be secured together
ing a circuit through a lamp 284 or other signal which
as indicated in FIGURE 16. A short plug 22% is grooved
may be mounted on the top of the housing 20 to be
helically to receive the end portions of a spring 222 which
conspicuously visible to the operator who is tending the
are screwed on the plug like nuts. A drop of solder may
be employed to prevent any possibility of the ends coming
I claim:
1. In a spinning frame, a ‘bobbin-carrying spindle
Control means are provided for the various parts of
comprising a central ?xed vertical rod mounted at its
the apparatus, the control means consisting chie?y of
lower end on the frame, an inner tube vertically slidable
switches and rheostats as indicated on the wiring dia
on said rod and extending beyond the upper end thereof,
gram in FIGURE 17. A manually operable master
a rotatable mid tube surrounding said inner tube, bear
switch 239 and master rheostat 232 are in the main cir 30 ings between said mid tube and parts of said frame
cuit to start and stop the entire apparatus and to regu
whereby said mid tube is held against axial movement,
late the speed of operation thereof. The spindle 149
an outer tube surounding said mid tube and splined
and iiyer 114 are driven by the same motor 196 the speed
thereto for rotation therewith, a bearing between the up
of which is manually regulated by means of a rheostat
per ends of said inner tube and outer tube whereby said
234. A switch 235 operable by a knob on the front panel
outer tube is moved axially by the inner tube, and means
of the housing 20 is also in series with the motor 196.
on the ‘outer tube for holding a bobbin.
The speed of the motor 86 which drives the drawing
2. ‘Mechanism as described in claim 1, a closure in the
rolls can be regulated manually by a rheostat 236, and
upper end of said inner tube, and a compression spring
is also automatically regulated by a rheostat 238 which
in said inner tube between the top of said rod and said
is connected in series with the rheostat 236 and is oper 40 closure.
ated as hereinafter described. The speed of rotation of
3. In a yarn spinning machine, a frame, a bobbin
can be employed as may be found to be sufficient for the
purpose. vFor most of the connections a helical spring
the supply package of roving can be manually regulated
by means of a rheostat 241} which with a manually oper
able switch 241 is connected in series with an automati
carrying spindle comprising a ?xed central rod mounted
on said ‘frame, an inner tubular member vertically slida
ble on said rod and extending above the upper end there
cally operated rheostat 242. During the operation of 45 of, a mid tubular member surrounding an intermediate
the machine, the spindle and ?yer are rotated at constant
portion of said inner tubular member, bearings on said
related speeds. As the package of yarn builds up on the
frame rotatably supporting said mid member, an outer
bobbin, its diameter increases, and since the speed of
tubular member rotatably connected at its upper end to
rotation of the spindle is constant, the roving must be
the upper end of said inner member and splined to said
supplied at a greater rate from the drawing rolls and 50 mid member for vertical movement relatively thereto,
the preliminary twist imparted to the roving by the rota
means for vertically reciprocating said inner and outer
tion of the supply package must also be progressively
members, means for rotating said mid and outer mem
increased. To provide for automatic increases in the
bers, and spring means between the top of said rod and
drive of the drawing rolls and the supply package, a
the upper end of said inner member to support most of
cylindrical roving package is employed, the decrease in 55 the weight of the inner and outer members.
the diameter of which will be proportional to the increase
in the diameter of the yarn body on the bobbin carried
by the spindle. A feeler 250 is arranged to be pressed
lightly by a spring 252 against the roving package 52.
As the diameter of the roving package diminishes, the 60
feeler moves gradually toward its axis, thus turning a
shaft 254 which carries it. The rotative movement of
the shaft 254 is magni?ed by any suitable means such as
sprocket wheels 256 and 258 of different sizes connected
by a chain 26%. The wheel 258 turns the movable contact 65
arm 262 of the rheostat 238 to vary the speed of the
motor '86 which drives the .drawing rolls. In like manner
the shaft 254 is connected by sprocket wheels 270, 272
References Cited in the ?le of this patent
Goodwin et al. ________ __ May 3, 1864
Macomber ___________ __ Feb. 12, 1878
Smith _______________ __ Apr. 20, 1886
Reich _______________ __ Aug. 8, 1939
Henning et al __________ __ Jan. 11, 1944
Roddy _______________ __ Jan. 30, 1945
Weiss _______________ __ Sept. 14, 1948
Great Britain _____________ __ of 1877
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