Year: 1886

page_text: Date of Application, 21st Apr., 1886.
Complete Left, 22nd Dec., 1886.
Complete Accepted, 25th Jan., 1887.
I, ADOLF WALDBAUR, doctor of philosophy, residing at Augsburg, Kingdom of
Bavaria, German Empire, do hereby declare the nature of this invention to be as
follows:-
The object of my invention is to provide means for carrying out the processes of
bleaching, dyeing, washing, &c., of textile fibres, yarn and the like, one after the
other, in a single apparatus and without removing the material from the same.
For this purpose I employ a centrifugal machine the rotating basket whereof is
provided with a cover fitting loosely into it, in combination with guiding-devices
whereby the cover, when supported by elastic or compressible material packed into tho
basket, will be caused to screw itself down within the basket in consequence of its
tendency, resulting from inertia, to remain behind relatively to the basket while
rotating. Moreover I arrange in the middle of the latter a small, longitudinally
resilient, and therefore compressible basket, having orifices, and serving to produce
and maintain a hollow space from which the fluid, designed for the treatment of the
material, percolates the latter. This basket may be provided with contrivances for
conducting the fluid towards its periphery. The invention also comprises means for
drawing off noxious gases and vapours emanating from the liquids employed, and also
adapted for sucking air.or gases through the material under treatment.
The aforesaid guiding devices for the cover of the basket may consist in inclined
ledges fixed to the wall of the basket and forming portions of screw-threads, and in
notches on the edge of the cover, the sides of which notches constitute the counter-
parts of the said threads. Or the screw-surfaces are formed upon the cover, while
pins or other projections, or rollers secured to the basket form the said counter-parts.
The inner basket may consist of a metallic plait-work having on the inside gutters
extending towards its centre. Into this basket the fluid to be used in the treatment of
the material, is conducted by a pipe inserted with its end into a hole in the centre of
the aforesaid cover.
The means for removing noxious gases and vapours and for drawing air and gases
through the machine consist in a pipe communicating with the casing of the latter
and leading to an exhauster, and in a cover for closing the casing.
DR. ADOLF WALDDAUR.
By his Agent, Carl Pieper.

page_text: Improvements in Centrifugal Machines.
I, ADOLF WALDBAUR of Augsburg, Bavaria, in the Empire of Germany, Doctor
of Philosophy, 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:
With the present arrangements for carrying out the different processes of bleaching,
dyeing, washing, etc. of textile fabrics, yarn and the like, the material has to be
repeatedly removed from one apparatus to the other. This causes much waste of time.
The material which is apt to come out of order in the operations, requires to be
frequently repacked, and is exposed to the danger of being damaged, also the requisite
apparatus is complicated and expensive.
The object of my invention is to provide means for carrying out the various afore-
said processes one after the other without removing or repacking the material, for
preventing the layers of the same from shifting, and for causing it to be compressed
in proportion to the strength of the current of fluid passing through the material.
For this purpose I employ a centrifugal machine, the rotating basket whereof is
provided with a cover fitting loosely into it, in combination with guiding devices,
whereby the cover, when supported by plastic or compressible material packed into
the basket, will be caused to screw itself down within the basket in consequence of its
tendency, resulting from inertia to remain behind relatively to the basket while
rotating. Moreover I arrange in the middle of the latter a small longitudinally
resilient and therefore compressible basket having orifices, and serving to produce and
maintain a hollow space, from which the fluid designed for the treatment of the
material percolates the latter. This basket may be provided with contrivances for
conducting the fluid toward its periphery.
The invention also comprises means for drawing off noxious gases and vapours
emanating from the liquids employed, and also adapted for sucking air or gases through
the material under treatment.
The annexed sheet of drawings shows a centrifugal machine constructed according
to my invention, Figure.1 is a vertical section of the complete machine; Figure 2 is
a plan of the basket; Figure 3 a top view of the cover of the latter; Figures 4 and 5
show on a larger scale in sectional elevation and in plan the inside basket; Figure 6 is
a sectional elevation, and Figure 7 a plan of the main basket with a modified form
of-cover..
On the inner surface of the wall of the basket T, Figs. 1 and 2, are fixed three or
more inclined ledges a, which thus form parts of screw-threads, and the cover D,

page_text: Figs. 1 and 3, is provided with corresponding notches b, the sides whereof constitute.
the counterparts of the said threads. The incline of the ledges a is such that the
cover, inserted into the basket while at rest and turned in a direction contrary to the
normal rotation of the basket, will screw itself down on the ledges a.
The said ledges
terminate at their upper ends in screws provided with thumb-nuts. The inner
basket K is made of strips preferably of metal plaited together, and it is provided on
the inside with gutters c, fixed to the said strips and extending toward the centre of
the basket. By these gutters the liquid flowing in from above is conducted to the
periphery of the said basket. The supply-pipe Z for the liquid fits with its conical
end into the tubular boss E of the cover D and it is provided at e with a joint for
allowing it to be turned back and to sink with the cover.
The means for removing noxious gases and vapours and drawing air and gases
through the machine consists in a pipe V communicating with the casing M and
leading to an exhaustor, and in a cover, G for closing the casing. Supposing the
basket T to be filled with the material to be treated, the cover D is placed upon the
latter, so that the screws project through the notches b. It is then pressed down by
the thumb-nuts until the notches register with the guiding-ledges a. Thereupon the
basket is put in rotation. During this rotation the cover tends to remain behind in
respect to the basket, in consequence of its inertia and will therefore screw itself down
on the ledges a, so as to compress the material. This effect is greater in proportion as
the basket revolves quicker. As soon as a sufficient speed is attained the supply
pipe Z is turned down and introduced with its conical end into the tubular boss E of
the cover D. Communication with the reservoir containing the liquid to be used
having then been established, the latter is drawn into the basket K by the sucking
action of the centrifugal force, and distributed upon the periphery of the basket by
the gutters c. The said sucking action also tends to keep the pipe Z tight in the
tube E. With the increase of speed of the basket, and the consequent increase of
compression of the material, the force with which the liquid is drawn through the
latter becomes greater. The current of the liquid thus regulates itself automatically,
according to the degree of compression of the material, while at the same time the
layers thereof are prevented from shifting by the action of the screw cover and thus
from coming out of order. In the measure, as the cover D descends, the basket K is
compressed, together with the material, in vertical direction, so that a free space for
the passage of the liquid will constantly be maintained in the centre of the basket T.
In case gases or vapours are to be drawn off, or to be sucked through the pipe Z and
the material, the casing M is closed by the cover G and the exhaustor, connected to
the pipe V is put in operation.
By means of the described machine the different processes of bleaching, dyeing,
and washing and also of drying by air and treating by gases may be carried out in
succession without removing the material from the machine.
The modified arrangement of the cover D in the basket T (Figs. 6 and 7) consists
in an inversion of the means for guiding the latter, the cover being in this case
provided with ribs a¹ whose upper edges form helical surfaces, while to the basket
are fixed pins or rollers 6' under which the said ribs slide. The operation of this
arrangement is the saine as that of the one above described.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, I declare that what I claim is :
In a centrifugal machine:
1. The combination, with the basket T, and the cover D, of helical surfaces and
corresponding counterparts adapted to cause the cover, supported by elastic material,
to screw itself down within the basket, when the said cover rotates at a lower speed
than the basket, substantially as and for the purpose described.
2. The combination, with the basket T having guiding-ledges a, forming portions of
screw threads, of a cover D, provided with notches by fitting upon the said ledges,
substantially as and for the purpose specified,

page_text: 3. The combination, with the basket T and cover D, of the basket K, constructed
to be resilient lengthwise, and having orifices for the passage of fluid, substantially
as and for the purpose set forth.
4. The combination, with the basket T and the cover D, of the longitudinally
resilient basket K, having orifices, and to the inside of which are fixed gutters c, as
and for the purpose described.
5. The combination, with the basket T cover D and casing M, of the cover G,
pipe Z for the supply of fluid, and pipe V, substantially as and for the purpose
set forth.
ADOLF WALDBAUR.
Pp. Herbert & Co., 67, Strand, W.C.,
Agents to Applicant.