Device in Winding Machines for Freeing the Yarn from Impurities and for Removing and Collecting the Velvet Dust.
Year: 1889

page_text: Date of Application, 8 h Oct., 1889-Accepted, 9th Nov., 1889
COMPLETE SPECIFICATION.
A Device in Winding Machines for Freeing the Yarn from Impurities
and for Removing and Collecting the Velvet Dust.
I, CONRAD HAMIG of Pfersee, near Augsburg, in the Kingdom of Bavaria, Empire
of Germany, technical director of the firm of "Mechanische Weberei am Mühlbach "
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:
The object of this invention is a device for removing and collecting the inpurities
and velvet dust occurring in the winding up of yarn and leading to disturbances and
injury to the article.
It is known, that when winding the yarn upon the spools by guiding it over a
brush or over a bead or bar covered with plush or other suitable device for the
purpose of cleaning it and producing the requisite tension on the spools, a large
amount of velvet dust mixed with impurities is stripped off the yarn. This dust
condensing into lumps adheres to the brush or other device and thereby comes in
contact with and is partly taken along by the following parts of the threads. The
latter becoming thus sticky and flocked are frequently unable to pass the narrow
slits of the thread guides situated immediately in front of the bobbins and con-
sequently break, unless this is prevented by the workman assisting the passage of
the thread in order to save himself the trouble of knotting the broken parts. But
in this case the locks or lumps get on the bobbin which is more prejudicial to the
machinery or to the appearance and quality of the subsequent fabric than a regular
knot and not unfrequently leads to the ejection of the shuttles.
:
:
These and other inconveniences connected with the condensing and flying about
of the dust and impurities are intended to be obviated by the improvements
illustrated by the accompanying drawings, in which
Fig. 1 is a front view and
Fig. 2 a side view of the improved mechanism in combination with the other
constituents of the winding frame, while
Fig. 3 is a section along line A B Fig. 1 shewing the object of the invention
separately, drawn on an enlarged scale.
The illustrated contrivance essentially consists of a cleaning roller A rotating in the
sense opposite to the course of the yarn, a roller brush B of metal wires provided
behind said roller, a bristle brush Cand fly-wheel D rotating above the latter. The
enumerated parts being in the same manner respectively secured and lodged on either
side of the winding machine and the rear side of the machine being constructed like
its front side, the mode of respectively securing and lodging the said parts is illus-
trated in the drawing only on one side of the machine.
While in the usual manner the bobbins a are revolved by means of the pulleys b,
and the bar c with the yarn guides d and guide rod e, in front of which parts the fly-
wheel D is situated, is moved vertically up and down with the latter by aid of the
gearing fghi, the rotation of the roller A is effected through cord from the main
wheel by means of the driving pulley k secured on the shaft of said roller.
The fly-wheel, secured to the bearing m, is actuated from the pulley n through the
cordo carrying at the bottom the roll r charged with poises p and guided in grooves
for the purpose of ensuring and compensating the tension connected with the up and
down movement of the parts c d e m and D.
The rotation of the roller is opposed to the travel of the yarn and that of the
fly-wheel is such as to detract the few light flocks, that rise and move towards the
yarn guides, from the latter.
The brush (bears at each end on a support s, the bifurcated extremitics of which
embrace the bar so as to be capable of easy introduction and removal.

page_text: When the machine is at work, the impurities and velvet dust inherent to the
thread, which is drawn by the above rotating spools off the pirns below, are stripped
off by the adversely revolving roller A, and when condensed through their rapid
increase in a short time to gradually enlarging flocks and reaching the roller brush B,
they are stripped off and received by the latter. Consequently the said brush, which,
being movable in the hinges t, so bears with its own weight on the roller as not to
impair the revolution thereof, continually delivers the latter of the velvet dust, thus
keeping clean the roller surface above and in front where it comes in contact with the
yarn. The flocks accumulating below gradually grow denser and harder till they fall
down as an homogeneous mass and can be easily removed, as in this state no more
dust is emitted therefrom. Those flocks that have not yet assumed such consistency,
but still adhere to the roller and brush are every now and then removed after turning
back the brush, and the light and hardly visible particles of dust raised by the air or
taken up by the threads are attracted by the fly-wheel, which when in its lowest
position, that is to say after its downward movement, delivers the impurities and
dust it has gradually collected to the brush C so as to be cleaned prior to its return
upward and resume its work.
When the machine is disengaged, the roller brush can be removed by screwing off
the hinges and the brush C by lifting it out of the forks of the supports for the
purpose of subjecting them to a thorough cleaning process.
It is obvious, that by the application of the improved device the enormous
quantities of velvet dust, that would otherwise be injurious to machinery and fabric
are efficaciously dealt with, while at the same time considerable economy of work
and protection from accidents are ensured.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
In winding machines the application of a cleaning roller A in combination with a
roller brush B fly-wheel D and brush C, substantially as and for the purpose. set
forth.
Dated this 8th love of Ontabon 1904