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Патент USA US3092964

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June 11, 1963
Filed June 15, 1961
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Patented June 11, 1963
and lengths, which permits its use for practically all re
quirements of spinning and twisting, with differing diam
Anthony Terpak, Assonet, Mass. (% Modern ?astics
eter spinning rings to take care of traveler angles.
Other advantages of my improved spindle will appear
Engineering Corp., North Ave., Taunton, Mass.)
Filed June 15, 1961, Ser. No. 117,313
6 Claims. (61. 57-134))
This invention relates to spindles for use in spinning
frames and twisters for making yarn packages, and par 10
ticularly a spindle of increased size, strength and light
ness, which may be rotated and spun at increased rates of
in the following speci?cation, and accompanying draw
ings, wherein:
FIG. 1 is a vertical section of my improved spindle;
FIG. 2. is a horizontal section on line 2—2 of FIG. 1;
FIG. 3 is a side elevation of my spindle as used on a
spinning frame, with the yarn tube shown in section.
Referring to the drawings, I have shown my spindle
speed, with consequently reduced costs in making yarn
adapted for use in a spinning or twisting frame, and which
includes a base 10, which may be secured in a ring rail
It has been the constant effort and endeavor of the 15 or other supporting structure 11 by a clamping nut 12.
textile industry in recent years to reduce the costs of
The base it} may be provided with the usual oil tube 14
manufacturing yarn in every way possible, and to this end
and doffer guard 15.
spindles have been increased in length and size, with
consequently increased length and size of the yarn package
The rotating element of my improved spindle includes
a longitudinally extending metal blade 20, preferably of
wound on such spindles. But the increased length and 20 steel, and preferably round and straight sided for dynamic
size of the spindle and the yarn package wound thereon
balance, which constitute the central longitudinal core
have introduced problems in spinning and twisting, which
of my spindle, and which extends the entire length of
have placed de?nite limitations on the size ‘of yarn pack
the spindle. It is preferably pointed at the bottom to
age which can be successfully wound, and on the speed
center it for rotation in the base 10, and it may have a
25 beveled top as shown in FIG. 1. A barrel 22 of suitable
at which the spindles can be rotated.
I have successfully overcome these limitations, par
ticularly as to the speed of rotation of the spindles, by
developing a light weight spindle of great strength, with
light weightplastic material, such as nylon, styrene and
the like, is then moulded’directly to the blade 20. As
such plastic shrinks in setting, it grips the blade 20‘ in
its mass concentrated at its vertical or longitudinal axis
such a tight bond, that it forms practically a solid one
and wit-h a lighter outer ci-rcumference—which permits
piece spindle construction with the blade 20. The barrel
yarn packages of uniform size and shape and construction
22 is also preferably round and straight-sided, i.e. with
to be wound at greatly increased speeds.
its side parallel to that of blade 20, except at its top and
Brie?y, my spindle comprises a metal blade ‘forming
bottom. The barrel 22 at its lower end then tapers out
the central longitudinal core of the spindle and extending
wardly and enlarges into tapered side 23‘ and sleeve por
the length thereof, and having a barrel of light weight 35 tion or acorn 24, which again is straight-sided, with sides
plastic material moulded directly to the blade, with the
parallel to those of the blade 20. But it will be under
plastic barrel having an enlarged sleeve portion formed
stood that the sleeve portion 24 can be gradually tapered
adjacent its lower end for loosely centering the yarn
outwardly to the dimension shown, if desired, without
carrier thereon and having a driving whorl of more in
departing from my invention. The purpose of the en
creased diameter formed at its lower end, below the sleeve
larged sleeve portion 24- is to loosely center the lower end
portion. It will be understood that the spindle supports
of the tube T, or yarn carrier on which the yarn pack
a yarn carrier, such as a paper, fiber or plastic tube on
age is formed, as shown in FIG. 3, to permit easy dof?ng
which the yarn package is spun, and which can be readily
of the tube T and the yarn package wound thereon. It
do?ed from the spindle when the yarn package is com
is obvious that a tapered enlarged sleeve portion 24 is
equally satisfactory for this purpose. Normally it will be
The important advantages of my spindle are its light
understood that the tube T engages the spindle only at
ness and its capacity for greatly increased speed of rota
its top for ease of do?ing, and does not engage the spindle
tion, with lower cost of manufacture and substantially
at its bottom, being only loosely centered thereon, as in
lower spinning costs. With my spindles, the speed of
dicated in FIG. 3. At its lower end the sleeve portion
rotation of the spindles can be increased from the 8000
24 then ?ares into the enlarged tapered bell portion 26,
to 12,000 rpm. range, to the 25,000 to 26,000 rpm.
the bottom shoulder 28 of which forms the upper ?ange
range, thereby at least doubling spinning production.
of the whorl 30, where the spindle is driven from the
This reduces spinning costs from 25 to 50% on the smaller
driving belt (not shown) of the spinning frame. The
sizes of yarn packages, to as low as ‘10% of present costs
bottom ?ange 32 forms the lower guide of the whorl
on the larger sizes. The lighter spindle further reduces 55 for the driving belt.
power costs, an important item in spinning. A limiting
Preferably the entire lower enlarged sleeve portion of
vfactor heretofore to higher speeds of rotation of the
the spindle, parts 23, .24 and 26, is strengthened and rein
heavier spindles has been vibration. My light weight
forced by a plurality of longitudinal ribs 34 which en
spindle, with its heavier weight mass concentrated on the
gage t-he blade '20, as shown in FIGS. 1 and 2.
central longitudinal axis of the spindle, and lighter weight
The top end of the blade 20 is preferably protected and
of the plastic at the circumference thereof, improves the
reinforced with a steel band 36, known as the top metal
dynamic balance of the spindle and presents the ideal con
drive, which is provided to protect and add additional
dition for high speed rotation, with diminished vibration.
resistance to wear from engagement with the inside top
The moulding of the plastic barrel, sleeve portion and
the tube T. It will be understood that the tube T nor
driving whorl in one piece and moulding the barrel to the 65 mally engages the barrel 22 only at the top portion pro
central metal blade in effect provides a one-piece con
tected by the‘metal band 36.
struction of the entire spindle, which greatly increases the
stability of my spindle when rotating at high speeds.
Preferably adjacent the middle portion of the barrel
22 four radial slots 40 are provided in the plastic barrel
Another important advantage of my spindle is that it can
22, separated by ribs 42. These slots 40 are formed in
be moulded in varying sizes and lengths and can be used
the moulding portions by metal spacers which extend
with adapters to ?t yarn carriers of many varying sizes
inwardly from the sides of the barrel mould, to engage the
steel blade 20, and are provided for the purpose of hold
ing the blade 2%) rigidly, and to prevent its de?ection from
bending from the pressure of the plastic material being
vforced around it, and thus to preserve the dynamic bal
ance of the spindle. ,
i \In FIG. 3 a conventional textile tube T forming the
yarn vcarrier is shown as normally mounted on my spin
dle. The tube T is made of paper, ?bre, plastic or other
suitable material, and gradually tapers outwardly :from
I claim:
1. A spindle for supporting and roating a tubular yarn
carrier, comprising a metal blade forming the longitudinal
central core of the spindle, and a cylindrical barrel of
light weight plastic ‘material moulded directly to the blade,
said barrel having a driving whorl formed at its lower
2. A spindle for supporting and rotating a tubular yarn
carrier comprising a metal blade forming the longitudinal
central core of the spindle and extending the length there
top to bottom, for ease of do?ing when the yarn pack
age is formed on the tube T. The tube T normally in
of, a cylindrical barrel of light Weight plastic material
cludes a metal reinforcing band 44 at the top- and another
moulded directly to the blade, and a driving whorl of
band 46 at the bottom. As stated above, the tube T nor
enlarged diameter formed at the lower end of said barrel.
mally engages the ‘spindle only at the top at the metal
3. A spindle as in claim 1 in which said barrel has an
band 36, and votherwise ?ts loosely over the sleeve-por 15 enlarged sleeve portion formed adjacent its lower end
tion 24 of the spindle, and is centered thereby.
for loosely centering the yarn carrier thereon.
It will be understood of course that the spindle, includ
4. A spindle for supporting ‘and rotating a tubular yarn
ing the blade 20, barrel 22, sleeve portion 24 and driving
carrier, comprising a metal blade ‘forming the longitudinal
whorl 30 will vary in length and diameter to cover all
central core of the spindle and extending the length there
requirements of normal spinning and twisting machines. 20 of, a cylindrical barrel of light weight plastic material
‘While the spinning frames, and the range of tubes and
moulded directly to the blade, said bar-rel having a sleeve
yarn carriers used thereon may vary, the length and
portion of enlarged diameter for-med adjacent its lower
diameter of spindle used would similarly vary. Likewise
end for loosely centering the yarn carrier thereon, and a
the steel blade20 may have varying dimensions as re
‘driving whorlformed on the lower end of said barrel.
quired, and tapers at the bottom end to ?t either ball 25
5. A spindle as in claim 4, in which said cylindrical
bearing or roller bearing bolsters of the spinning frames.
barrel and driving whorl are provided with longitudinally
It will be further understood that by the use of adapters
extending radial ribs engaging the metal blade.
supported on the barrel :22 of my spindle, my spindle
'6. A spindle as in claim 4 in which said plastic barrel
may be used to ?t yarn carriers of many varying sizes
is reinforced with a metallic band at its upper end for
and lengths .which permit it to ?ll practically allrequire 30 engaging the tubular yarn carrier thereon.
ments of spinning and twisting.
it is apparent that multiplications and variations may
be made in my spindle without departing from my inven
tion and I ‘do not wish to be limited to the details dis
closed herein, otherwise than as set forth in the appended
References Cited in the ?le of this patent
vMandouchitch _________ __ June 5, 1951
Meadows ____________ __ Aug. 2'1, 1951
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