Improvements in connection with Spindles of Spinning Machines.
Year: 1891

page_text: Date of Application, 17th Aug., 1891
Complete Specification Left, 14th May, 1892-Accepted, 18th June, 1892
PROVISIONAL SPECIFICATION.
Improvements in connection with Spindles of Spinning Machines.
I, MORITZ KUCHENBECKER of Freiburg in the Province of Silesia of the
Kingdom of Prussia, German Empire, Engineer, do hereby declare the nature of
this invention to be as follows:-
My invention relates to the spindles of spinning machines particularly of such
machines as are employed for spinning tow and flax.
The spindles which have hitherto been in general use for this purpose being
liable to irregularities if the velocity exceeds certain limits, in consequence whereof
the thread frequently is caused to slacken between the thread board and the flyer.
It has been attempted to obviate this defect by putting on the brake more forcibly
upon the thread but this weakens the thread and often causes it to break. On this
account it has hitherto been impossible to work at anything higher than a very
moderate velocity and the employment of light flyers and short spools has been
rendered a necessity.
The object of my invention is to overcome these difficulties thus improving the
method of working and increasing the efficiency of the machine.
This end is attained principally by making the bushing of the upper or main
bearing of the spindle capable of being independently adjusted during the working
of the machine which bearing extends for some distance along the spindle in such a
way that the whirl or pulley which communicates motion to the said spindle is
prevented from exercising any kind of bending force upon it (the spindle).
If this
This adjustability of the spindle prevents the wear of the bushing from doing
any harm and one of the methods by which I attain this end is by partially slitting
up the bushing and providing it with a conical head, the hollow conical surfaces
corresponding to which are arranged in the upward projecting boss of a nut, that is
screwed on the external of the upper bearing case, overlapped by the nut.
nut be screwed downwards which owing to its position is easily effected even while
the spindle is revolving, the slit portions of the bushing are pressed closer against
the spindle. In order to prevent the bushing from turning it may be provided with
projections which fit into cavities in the body of the bearing. The nut described
above may also be locked in any position by a lock-nut.
A spindle which is provided with an adjustable upper or main bearing as herein-
before described admits of the application to it of the second part of my invention
namely the arrangement of a guide-cap for the thread coming from the thread-board
which guide-cap fits upon the end of the spindle. This cap has at its upper end an
eye or loop, (provided if necessary, with an adjustable lining) by means of which
the thread is guided to the axis of the spindle. Another adjustable ring at the
circumference of the guide-cap keeps the thread at a certain distance from the
spool so as to prevent it from tangling or sticking which considering the moist
condition of the thread would otherwise be possible.
If the guide cap is made of sufficiently strong material such as metal of some
kind the ring may be omitted.
I do not confine myself to the particular means described for carrying out my
invention the various parts of the apparatus as hereinbefore described being capable
of being arranged in any other suitable manner.
Dated 17th day of August 1891
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C., Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in connection with Spindles of Spinning Machines.
I MORITZ KUCHENBECKER, Engineer, of Freiburg in the Province of Silesia,
Kingdom of Prussia, German Empire, do hereby declare the nature of my invention
and in what manner the same is performed to be particularly described and
ascertained in and by the following statement :-
My invention relates to the spindles of spinning machines particularly of such
machines as are employed for spinning hemp and flax.
The spindles which have hitherto been in general use for this purpose are liable
to irregularities, the velocity exceeds certain limits, in consequence whereof the
thread frequently slacks out between the thread board and the flyer. It has
been attempted to obviate this defect by applying the brake more forcibly to the
thread but this weakens the latter often causing breakage in the same. On this
account it has hitherto been impossible to work at anything higher than a very
moderate velocity and the employment of light flyers and short spools has been
rendered a necessity.
The object of my invention is to overcome these difficulties thus improving the
method of working and increasing the efficiency of the machine.
This end is attained principally by making the bushing of the upper or main
bearing of the spindle capable of being independently adjusted during the working
of the machine which bearing extends for some distance along the spindle in such a
way that the whirl or pulley which communicates motion to the said spindle is
prevented from exercising any kind of bending force upon it (the spindle).
This adjustability of the spindle prevents the wear of the bushing from doing
any harm and one of the methods by which I attain this end is by partially slitting
up the bushing and providing it with a conical head, the hollow conical surfaces
corresponding to which are arranged in the upward projecting boss of a nut, that is
screwed on the external surface of the upper bearing case. If this nut be screwed
downwards which owing to its position is easily effected even while the spindle is
revolving, the slit portions of the bushing are pressed closer against the spindle. In
order to prevent the bushing from turning it may be provided with projections
which fit into cavities in the body of bearing. The nut described above may also
be locked in any position by a lock-nut.
A spindle which is provided with an adjustable upper or main bearing as herein-
before described admits of the application to it of the second part of my invention
namely the arrangement of a guide-cap for the thread coming from the thread-board
which guide-cap fits upon the end of the spindle. This cap has at its upper end an
eye or loop provided if necessary with an adjustable lining by means of which the
thread is guided to the axis of the spindle. Another adjustable ring at the
circumference of the guide-cap keeps the thread at a certain distance from
the spool so as to prevent it from tangling or sticking which considering the moist
condition of the thread would otherwise be possible.
If the guide-cap is made of sufficiently strong material such as metal of some
kind the ring may be omitted.
In order to make this Specification more easily intelligible, reference is had to
the accompanying drawings in which similar letters denote similar parts throughout
the several views.
Fig. A is a side elevation of my improved spindle.
Fig. 1 shows the spindle in vertical section, drawn to a larger scale.
Fig. 2 is a side elevation of Fig. 1.
Figs. 3 and 4 show in plan and side view the guide cap for the thread.
Figs. 5 and 6 are two side views of a modified form of the guide cap, taken at an
angle of 90° from each other.

page_text: Figs. 7 and 8 are plan and clevation of the slotted bushing and part of the sleeve
carrying the same.
Figs. 9, 10 and 11 are detail views of the slotted bushing and Fig. 12 is a
sectional view of a modified form of the guide cap.
The spindle carrying at its upper end the flier c, has its lower part entirely
enclosed in a sleeve m mounted by means of its flange S and a nut p in a beamt of
the spinning machine. The lower end of the spindle n is turned up to a point and
rests on a plug screwed or otherwise secured in the lower end of the sleeve m.
The upper end of the sleeve m is turned out to receive a slotted bush 7 (Figs. 8, 9,
10 and 11) having lugs to fit into notches in the top rim of the sleeve m (Fig. 8) to
prevent the bush from turning in the latter. Any other suitable means may be
employed to obtain the same end. The said bush is provided with a shoulder
which tapers off towards its upper end, said shoulder resting on the top rim of the
sleeve m.
The bush is secured in the sleeve m by means of a cap k having its
upper end turned out conically to fit over the end of the slotted bush whilst its
lower end is made larger in diameter and provided with an interior thread to screw
on to the exterior thread of the sleeve m. By screwing down the cap k the slotted
bush will be tightened on the spindle n, whilst the said cap k may be locked in
position by a lock nut o. The cap having at its lower end the whirl through
which motion is communicated to the spindle n, overlaps the nut k so that the
sideward pull of the cord driving the whirl does not act on the spindle directly;
thus decreasing the strain on the said spindle to a minimum; on the spindle
becoming loose in the bush l, it may be easily tightened up by screwing down the
cap or nut k.
In cases where it would appear advisable to steady that part of the thread falling
between the thread board and the flier c the guide cap a which forms the second
part of my invention is attached above the flier c or made in one piece with the
same. The cap is hollow and slotted as shown in Figs. 1, 1'-6 and 12 for the
reception of the thread f. On the lower outer rim of the cap a ledge or groove is
provided into which a spring ring of some hard smooth material may be clamped.
The interior rim of the inlet hole should also be provided with a ring b of some hard
smooth material. If the guide cap is made of metal the rings b and h may be made
in one piece with the same, or the upper ring 6 may be omitted altogether.
The thread coming from the thread board is passed through the hole b of the
cap a, over the ring and through the eye e of the flier c on to the reel.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, what I claim is-
1. A spindle bearing consisting of a sleeve having at its lower end a support for
the spindle, such as a screw plug and at its upper end a slotted bush having a
shoulder and having its end above the said shoulder conically tapered towards the top,
a cap to enclose the upper part of the sleeve m, said cap being turned out conically
to fit over the upper end of the slotted bush, means for adjusting the said cap
vertically on the sleeve, as also suitable lugs to prevent the bush from turning in
said sleeve, in combination with a cap shaped whirl attached to the spindle and
having a groove for the driving cord situated below the top of the said bearing
substantially as described.
2. A spindle bearing consisting of the combination of the sleeve m having at its
lower end a screwed plug q, the slotted bush having conical top and lugs rr fitting
into depressions in the top of sleeve m, the nut k having upper tubular extension
turned out conically at the top and having lower internal thread to fit onto the
exterior thread of sleeve m, the lock nut o on sleeve m and a whirl i fast on the
spindle n and having groove for the driving cord below the top of the bearing
surface, substantially as described.
3. The combination with a spindle bearing consisting of the sleeve m, slotted
bush adjustable nut k, and with a whirl i having cord groove as specified, of a
guide cap a having upper guide hole with hard smooth interior rim or ring b and

page_text: lower exterior rim or ring of suitable hard smooth material, said cap being slotted
for the passage through it, of the thread substantially as described and shown.
Dated the 14th day of Mav 1892.
J. H. JOHNSON & Co.,
Agents.