Improvements in Self-acting Spinning Mules.
Year: 1890

page_text: Date of Application, 14th Oct., 1890
Complete Specification Left, 14th July, 1991-Accepted, 15th Aug., 1891
PROVISIONAL SPECIFICATION.
Improvements in Self-acting Spinning Mules.
A communication to me from abroad by ALBERT HEIPT and WILHELM STREIT,
both of Spremberg, in the Empire of Germany, Manufacturers.
I, EDMUND EDWARDS, of the firm of Edwards and Co., Patent Agents and
Engineers, of 35, Southampton Buildings, Chancery Lane in the County of
Middlesex, do hereby declare the nature of this invention to be as follows:-
-
This invention relates to an improvement in self-actors for carded wool yarn and
the object of the invention is to provide a rail of variable height for the carriage
to travel upon, for the purpose of winding the yarn upon the spindles.
In forming the bobbins in self actors it is essential that each layer of thread
should consist of a large number of turns closely laid side by side in the upward
direction, and of a smaller number of turns of much greater pitch or distance
between the succeeding turns in the downward pitch for the purpose of obtaining
a durable combination of all the layers of thread on the bobbin by means of the
crossing obtained between the upward and downward windings of the thread..
To obtain such a difference of pitch between the upward and downward windings
of the thread various means have hitherto been tried, which however have failed to
give the desired result satisfactorily.
The present invention consists of a peculiar device applied to the rail by the use
of which device the winder, while feeding the thread upward on the bobbin, has a
slowly and gradually rising motion, while, during the downward feeding of the
thread the pitch rapidly increases.
The general construction of the self actor may be of any known or usual kind the
novel features of the present invention having reference only to the usual rail and
portions connected therewith. To the rail a small link is pivotted to which a larger
link is jointed by a pin. The other free end of the latter link freely rests and bears
upon a smaller rail which is arranged so that it can slide laterally on the principal
rail one end of the smaller rail being connected by a screw and slot to an angle piece
which itself by means of another screw and vertical slot is adjustably secured to an
adjustable plate.
The other end of the smaller rail is connected to another third rail which is also
arranged to slide laterally along the main rail being connceted therewith by a pin
and slot. The larger link already described bears upon the upper edge of the third
rail by a lug projecting downward from the said link.
The carriage which supports the spindle travels upon the said two links and over
the main rail, and carried by the said carriage a small wheel moves, by which an
arm is supported, the upper end of the said arm being suitably jointed or connected
to the rising and falling winder by which the winding of the thread is regulated.
The said winder, and through it the bobbin, is operated as follows so as to
move in the direction and at the variable speed required, by means of the device
described connected to the rail.
When the carriage is running out the arm carrying the winder will rise and
operate the latter in such a manner as to cause the thread to run on the spindle in
descending turns of wide pitch after which, when the carriage begins to run in, the
direction of the turns of the thread on the spindle will change, and the upward turns
will cross with the downward ones.
When the carriage has so far advanced as corresponds to the length of the small
link, the crossing of the first upward and downward turns of the thread has finished.
The carriage continuing its course, the upward turns of the thread will then be

page_text: closely laid side by side, until the carriage has reached the end of its travel and the
winder and the counter winder have been returned to their position of rest.
It will be seen that by means of the improved device the purpose in view will be
fully obtained, as the winder controlled by the arm is only slightly and gradually
lifted for forming the winding of the thread upward on the bobbin, the turns of
thread during such upward winding, being laid closely side by side, while during the
winding downward of the thread a rapid descent is made and the thread passes down
with widely separated turns. According to the variable quality of yarn to be
spun it is desirable to adjust the pitch of the turns of the yarn while being wound
on the bobbin. Also the angle of the upward and downward turns, which depends
upon the operation of the winder, should be changed accordingly, and means for
adjusting such angle should be provided. The speed of motion and the angle of
throw of the winder are of special influence in the formation of the bobbin and they
should both be made adjustable. This can be obtained either by adjusting the two
rails in their relative position to each other, and also relative to the main rail and
to the two links or by changing the rails for similar rails having their bearing upper
surface shaped to correspond to the object in view.
The apex of the two links jointed by the hinge simultaneously forms the apex of
the main rail. With the use of sheet metal spindles it will be preferable to employ
a rail of such a shape that its apex takes at the beginning of the formation of a
bobbin, such a position as to cause the winder to spring for a little distance as it
leaves its lowest position, and by this means to prevent the thread from being
caught between the disc of the spindle and the beginning of the bobbin. When the
yarn has covered the said disc, the said apex is shifted and its changed position
maintained, until the bobbin rest has been formed, after which the said apex is
shifted again for obtaining the crossing of the upward and downward turns of the
thread as described.
The bearing of the main rail upon the moveable plate as described will temporarily
sink below the point of bearing of the other end of the said rail upon the other
moveable plate and, consequently, the rail will gradually take a slightly inclined
position.
By this means while the rest of the bobbin is being formed, the point of the
bobbin may be extended for about one-third of the length during the first 10 to 30
draughts.
Deted this with low of October 1800.
EDWARDS & Co.,
35, Southampton Buildings, Chancery Lane, London,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Self-acting Spinning Mules.
A communication to me from ALBERT HEIPT and WILHELM STREIT, both. of
Spremberg, in the Empire of Germany, Engineers.
1, EDMUND EDWARDS, of the firm of Edwards and Co., Patent Agents and
Engineers, of 35, Southampton Buildings, Chancery Lane, in the County of
Middlesex, 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 and accompanying drawings, that is to say:
In forming the cops or bobbins upon the spindles of self acting mules it is
essential that each layer of thread should consist of a large number of turns closely
laid side by side in the upward direction, and of a smaller number of turns of much
greater pitch or distance between the succeeding turns in the downward direction,
for the purpose of obtaining a durable combination of all the layers of thread upon
one another.

page_text: The present invention consists of devices applied to the cop forming rail, by the
use of which the winder whilst feeding the thread upwards upon the bobbin or cop,
has a slowly and gradually rising movement, whilst during the downward feeding of
the thread the pitch is rapidly increased.
The general construction of the self acting mule may be of any of the known
kinds, the present invention having reference only to the forming rail and parts
connected therewith.
The accompanying drawings are in illustration of the invention.
At the back of the forming rail C (Figures 1, 2, and 3,) a small hinged picce R
is arranged which is moveable upon the bolt. E on the rail C. To this a larger
piece is jointed by a rounded end G, whilst the other free end H rests upon a
bar L adjoining the forming rail C. This bar L is adjustable upon the forming bar,
by a screw and slot N, and one end is adjustably fixed to the moveable support B
by the vertical slot and screw O P.
At the other end at M the bar L is connected
with another bar K which is also adjustable on the forming bar by means of the
guiding slot and pin J. Upon the upper edge of the bar K, a downwardly
projecting piece Q upon the jointed piece F, moves. The bar K is suspended from
the bar K by means of a pin U, and is moved forward with the bar K and the
supporting plates 13 B', whilst the forming rail C is lowered. The bar K' slides
upon the pins Z, which are provided with projecting guides which prevent the bar
from slipping off sideways. The bars K and L may also move in the same way
upon pins similar to Z. About a third of the outer end of the forming rail C is cut
away above and carries by the bolt E' a moveable hinged piece R'. This piece R'
has a downward projection which rests upon the screw V, by which its height can
be exactly adjusted. Another bar F is freely connected with the hinged piece R¹
by means of a bolt G', and under its front part is a projection Q1 which rests upon
the bar K and slides upon the latter as its position is altered by moving the
supports B B, so that a rise is obtained proportioned to the required thickness of
the cop, for thicker or deeper cops the front part of the piece F descending lower
than for thinner ones, for which purpose also the bar K may be made moveable,
another of suitable shape as required being substituted for it.
In Figure 5 the commencement of the formation of a cop is shewn, the piece Fi
being shewn with its projection Q resting upon the highest part of the bar K¹and
in this position there is no difference from the ordinary system of forming cops with
unarticulated guiding bars, whilst in Figure 7 the projection Q is shewn on the
inclined part of the bar K', the front part of the bar F being proportionally lowered
and the winder W with the thread being similarly raised, so that the point of the
cop is longer and the thread is wound in steeper convolutions than would otherwise
be the case.
In Figure 6 the projection Q' is shewn upon the lowest part of the bar K', the
bar having descended until it touches the forming rail C, the result being
that the winder W is raised so high that the thread is wound in steeper coils and
the cop has a still sharper point, in Figure 8 the rod T being shewn quite down
upon the piece F and the winder W in its highest position.
The operation of the back forming rail arrangement on the winder W, and of the
latter upon the formation of the cop is as follows: Figure 5 shows the commence-
ment of the operation.
The supports B B are adjusted by the screw A to their proper position as may be
required for the cop which is to be formed, the movement of the support B also
moving the bars Land K connected with it, whilst the forming rail C is not moved
in the direction of its length. During the last part of the movement the projection Q
upon the hinged piece F moves upward on the inclined top of the bar whilst the
other end of the piece F moves downward on the slope of the bar L. It follows
therefore that the rod T. operates on the winder W so that the latter coils the
thread in quickly descending turns upon the spindle, and then commences, at
the running in of the carriage, the crossing of the ascending coils upon the
descending ones. When the carriage is so far run in that the small hinged piece R

page_text: is reached, the crossing of the first descending coil upon the ascending one finishes
(Figure 5): By the further running in of the carriage the ascending coils are
formed closely against each other, until the carriage has completed its course and
the winders are brought back to their stopping point (Figure 8). Referring to
Figures to 8 it follows that the desired result is perfectly accomplished, as in
the formation of the ascending coils the winder is only slowly raised by means of the
rod T and the coils consequently lie closer together, whilst in the formation of the
descending coils the winder moves down quickly and the thread is formed in steeper
or more widely separated coils.
It is desirable to adjust the pitch of the coils of the thread whilst being wound to
form the cop, according to the variable quality of the thread. For this purpose the
angle of the ascending and descending coils, which depend upon the action of the
winders, should be changed accordingly, and means for adjusting such angle
provided. The speed of movement and the angle of throw of the winder are of
special influence in the formation of the cop, and they should both be made
variable and adjustable. This can be done by adjusting the relative positions of
the bars K, L, and K', to each other, to the forming rail C, and the hinged
pieces R, R, F, F, and by exchanging the bars K, L, K₁, for similar ones having
their inclined upper edges suitably shaped for the required object.
The apex of the two pieces R and connected by the joint G forms the highest
point of the forming rail.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, 1 declare that what I
claim is
1. A self acting muie in which two bars K and L are arranged close by the
forming rail C, in combination with the supports B 13, and the two pieces F and R,
connected together by the joint G and arranged so that the free end of the piece R
rests upon the forming rail, the ends of the piece F having projections Q and H
resting upon the bars K and 1, so that the lower end of the rod T which actuates
the winder W has a rising and falling movement, and by the usual movement of the
supports B 13 and the out and in travel of the carriage the thread is laid upon
the spindle by the winder in a larger number of coils during the ascending winding,
and a smaller number of a much greater angle during the descending winding,
substantially as described and shewn.
2. In combination with the forming rail described in Claim 1, the arrangement at
the front end of such rail of a jointed device to form the point of the cop, consisting
of a hinged piece R' jointed to the rail C, in combination with the moveable
piece a projection Q' upon which slides upon the bar K', substantially as
described and shewn.
Datel 1J
EDWARDS & Co.,
35, Southampton Buildings, London, Agents for the Applicant.