Improvements in Spindles for Spinning Machines and the like.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Spindles for Spinning Machines and the like.
I, CARL BERGMANN, of 55, Thalstrasse, Meissen, a/Elbe, in the Empire of Germany,
Director, do hereby declare the nature of this invention to be as follows:-
My invention relates to a spindle which requires considerably less power than
those heretofore generally employed. This advantage is obtained by providing the
spindle with a bearing supported in a spherical seat as well as with a second
elastically-yielding bearing, and by arranging the driving-pulley in such a manner
that the pull or pressure of the driving-cord acts in a horizontal plane passing through
the middle point of the spherical support of the bearing above mentioned. The pull
consequently tends to hold the spindle upright, and the said spindle could rotate
vertically as a free axis without a second bearing if external forces did not act thereon,
these forces, in the case of spinning and doubling, being those due to the pull of the
thread. In order to take up these small forces and since, moreover, small defects in
the construction of the apparatus and variations from the horizontal plane in the
direction of the driving cord cannot be avoided, a further support of the spindle
by a second bearing is necessary, this second bearing being arranged to yield
elastically in order to permit movements of the spindle in any direction so that
the motion of the spindle as a free axis is preserved. Moreover the bearing must
have the tendency to always return the spindle to its middle position.
In one form or modification of my improved apparatus the spindle is mounted at
its lower end in a bearing which is movable in a spherical support, the horizontal
central plane of which coincides with the central plane of the cord or driving-
pulley. At the upper end of the spindle is arranged the neck-bearing or bolster
which is suspended on three feeble springs. These afford the bearing a complete
capacity for yielding, whilst retaining it in its central position, and preventing the
a free axis during
bearing from turning. The spindle so mounted behaves as
rapid rotation, whereas the spindles now usually employed are rigidly mounted,
stationary shafts.
Instead of three vertically-arranged flat springs, a flat or other spiral spring can
also be employed to elastically support the neck-bearing or bolster.
The two bearings can also be so arranged that the bearing which is movable
in a spherical support is at the upper, and the elastically-yielding bearing at the
lower end of the spindle.
Or, if desired, the bearing which is movable in a spherical support, is so formed
that it surrounds the cord or driving-pulley.
In another form of my improved spindle, the bearing which is movable in a
spherical support and the elastically-yielding bearing are arranged in a common
sleeve or tube which can be fastened in the frame by means of a clamping screw
or by other suitable means. This arrangement has the advantage that the mounting
and dismounting of the spindles can be effected in a simpler and more rapid
0 manner.
The advantages of my improved spindles consist principally in that much less
nower is required than with the forms of spindle now in use, in which the spindle

page_text: is subjected to bending, whereby greater pressure on the bearing and considerable
friction are produced.
A further advantage of the new spindle is that the thread is capable of yielding
between the delivery drum and the point where the thread runs onto the spindle or
spool, since the spindle or the spool placed on the spindle can move quite freely from
its central or mean position, so that the winding-on of the thread takes place quite
elastically. Any shock or concussion of the thread which might otherwise cause
breakage of the thread, is thus obviated.
The spindle is capable of being employed for any method of spinning, for example,
fly or ring-spinning and so on.
Dated the 2nd dow of 1000
D. YOUNG & Co.,
11 & 12 Southampton Buildings, London, W.C.;
Agents for the Applicant.
Improvements in Spindles for Spinning Machines and the like.
I, CARL BERGMANN, of 55, Thalstrasse, Meissen, a/Elbe, in the Empire of Ger-
many, Director, 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 :-
My invention relates to a spindle which requires considerably less power than those
heretofore generally employed. This advantage is obtained by providing the spindle
with a bearing supported in a spherical seat as well as with a second elastically-
yielding bearing, and by arranging the driving-pulley in such a manner that the pull
or pressure of the driving-cord acts in a horizontal plane passing through the middle
point of the spherical support of the bearing above mentioned. The pull consequently
tends to hold the spindle upright, and the said spindle could rotate vertically as a
free axis without a second bearing if external forces did not act thereon, these forces,
in the case of spinning and doubling, being those due to the pull of the thread. In
order to take up these small forces and since, moreover, small defects in the construc-
tion of the apparatus and variations from the horizontal plane in the direction of the
driving cord cannot be avoided, a further support of the spindle by a second bearing
is necessary, this second bearing being arranged to yield elastically in order to permit
movements of the spindle in any direction so that the motion of the spindle as a free
axis is preserved. Moreover the bearing must have the tendency to always return the
spindle to its middle position.
My improved spindle is shown in various forms or modifications in the accom-
panying drawings, wherein the spherical bearing is arranged below and the elastically-
yielding bearing above in the spindles shown in Figures 1 to 5; whilst the reverse
arrangement is shown in Figures 6 to 8.
The spindle B, Figure 1, is mounted at its lower end in the bearing C which is
supported by means of a ball and socket. This consists of the bearing socket b which is
provided with a spherical expansion c resting in a corresponding recess in the fixed or
stationary socket d. At the top, a sleeve e fitting into the socket d, rests on the
expansion c the lower end of the said sleeve e being bored out spherically to correspond.
This sleeve e prevents the sphere c from moving upwards. The cord or driving
pulley D rigidly attached to the spindle B, is so arranged that its middle plane, in
which the driving cord engages, passes through the centre of the sphere c. At the
upper end of the spindle is arranged the neck-bearing or bolster A which is suspended
from the frame g by means of three feeble springs a. These springs permit a perfect

page_text: capacity for yielding of the bearing, at the same time retain it in the middle position
and moreover prevent the bearing from turning. The spindle so mounted behaves as
a free axis during rapid rotation, whilst the spindles now usually employed are shafts
turning in fixed bearings.
In the spindle shown in Figure 3, the spherical. bearing has another form. The
sphere c of the bearing socket 6 here rests in a cylindrical recess and a flange f pro-
vided at the upper end of the socket 6 rests on the upper edge of the fixed socket d.
The underside of the flange f and the upper edge of the socket d can be curved to a
spherical surface having its centre at the centre of the sphere c. In the oscillation of
the spindle B about the sphere, these parts thus retain their position unaltered. The
under surface of the flange and the upper edge of the socket d can however also be
rectilinear. In this case, in the oscillation of the spindle about the sphere c, one side
of the flange f is somewhat raised from the edge of the socket d, during which motion
the spindle is at the same time somewhat displaced in a longitudinal direction. This
motion is however so small that the movability of the spherical bearing beneath is in
no way interfered with thereby. To the upper neckbearing or bolster. A in this
spindle, there is secured a spiral spring a which is attached at its other end to a
casing m fixed to the frame g.
In the modification of the spindle illustrated in Figure 5, the lower spherical
bearing C is arranged within a cylindrical recess similarly to that shown in Figure 3.
The upper neck-bearing or bolster is however not provided with a flat spiral spring
but with a cylindrical spiral spring a. The action of the spring however remains the
same.
The two bearings can also be so arranged, as shown in Figures 6 to 8, that the
spherical bearing C is at the upper and the elastically-yielding bearing A at the lower
end of the spindle.
The spherical bearing of the spindle shown in Figure 6, corresponds essentially to
the arrangement in Figures 3 and 5. The socket b attached to the spindle B is
guided by means of the sphere in the cylindrical recess of the socket d secured to
the frame g and rests, by means of its upper flange f on a corresponding shoulder
on this socket. The cord-pulley D surrounds this socket d¹ from beneath. The lower
end of the spindle rests on the bearing plate o of a fixed casing m.
In this casing,
there rests the spiral spring a, which is attached at its outer end to the casing m and
to the inner end of which is attached the bearing for the lower end of the spindle.
The cover of the casing is provided with an opening so that the lower end of the
spindle can move laterally in the desired manner.
In the spindle shown in Figure 7, the spherical bearing is formed so that it sur-
rounds the cord pulley D. The socket b here rests, by means of its upper flange fon
a projecting edge of the guide d¹ attached to the frame g and is provided with arnis c¹
curved to correspond with a spherical surface, which arms c¹ rest against downwardly
directed arms on the guide. The arms c¹ are so arranged that the cord passed around
the cord pulley D can be guided away unimpeded at the side. The lower end of
the spindle is elastically mounted in the same manner as the spindle shown in
Figure 6.
In Figure 8, there is shown a spindle in which the spherical bearing and the
elastically-yielding bearing are arranged in a common shell or tube H which is
secured to the frame g by means of a clamping-screw or in any other suitable manner.
The sphere c, in this case, is formed on a tube b¹ surrounding the whole lower end of
the spindle, which tube b¹ is inserted into the lower extended cylindrical recess of the
tube H. The lower point of the spindle rests on a bearing block 611 let into the
lower end of the inner sleeve b¹, which block itself rests on the screwed-in bottom H¹
of the outer tube H so as to be capable of moving thereon. In the lower expansion
of the tube H is mounted the spiral spring a which is secured at one end to the tube
whilst it engages at its other end with an expansion 611 on the inner tube 61. The
spindle, in this arrangement, is carried by the screwed-in bottom H on which the
lower end of the tube b' can move in all directions and be returned to its middle
position by means of the spring a. This arrangement has the advantage that the

page_text: mounting and dismounting of the spindles can be effected in the most rapid and
simple manner.
The advantages of my improved spindles consist principally in that much less
power is required than with the forms of spindle now in use, in which the spindle is
subjected to bending, whereby greater pressure on the bearing and considerable friction
are produced.
A further advantage of the new spindle is that the thread is capable of yielding
between the delivery drum and the point where the thread runs onto the spindle or
spool, since the spindle or the spool placed on the spindle can move quite freely from
its central or mean position, so that the winding-on of the thread takes place quite
elastically. Any shock or concussion of the thread which might otherwise cause
breakage of the thread, is thus obviated..
.
The spindle is capable of being employed for any method of spinning, for example
fly or ring-spinning and so on.
L
:
.1....
Having now particularly described and ascertained the nature of my said
invention; and in what manner' the saine is to be performed I declare that what I
claim is
A spindle which is mounted in bearings above and beneath the point of application
of the power or of the attachment of the. pulley, and wherein one bearing is a
spherical one and the other bearing is elastically or resiliently displaceable laterally,
so that the spindle, after being displaced, can adjust itself automatically into the axis:
of gravity following the law of gravity.
Dated this 1st day of May 1899.
D. YOUNG & Co.,
11 and 12, Southampton Buildings, London, W.C.,
Agents for the Applicant.
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