Improvements in Centrifugal Machines for Pulpy Materials.
Year: 1890

page_text: Date of Application, 1st Aug., 1890-Accepted, 6th Sept., 1890
COMPLETE SPECIFICATION.
Improvements in Centrifugal Machines for Pulpy Materials.
We, JOHANNES SELWIG and BRUNO LANGE of Brunswick, Duchy of Brunswick,
German Empire, Manufacturers, 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:-
Our invention relates to improvements in centrifugal machines, in which the
rotating drum is continually fed with the materials to be dried and is continually
emptied from the dry materials.
We attain this object by the mechanism illustrated in the accompanying drawings,
in which similar letters denote similar parts throughout the different views.
Fig. 1 is a vertical longitudinal section, and Fig. 2 is a vertical cross-section of the
machine.
The standards s s¹ bear the shaft w with the pulleys & d' and the drum A B by the
ribs and by the cross-piece. The shaft w is hollow and has the openings o o,.
so that hot air or steam may be fed by the pipe o¹ to heat the contents of the
drum. The part p¹ of the cylindrical drums pp has the perforations e e for guiding
the hot air or steam into the drum A B, consisting of the perforated cylinder A and
of the solid top-plate 6 of conical form.
The drum A B is enclosed by the case D' D³ consisting of the cylindrical part D
and of the front plates D¹ D²; to the front plate D is firmly attached the tube K
provided with the cylindrical projection serving as bearing for the conical part b
of the drum A B. The tube K is fed with the material to be dried by the pipe T
and by the piston C, moved by lever c¹² and bar c³, screw-wheel c and worm c
the latter being fixed to the shaft w of the centrifugal machine. The case D D₁ D³
has the outlets E F G I.
The working of the centrifugal-machine is as follows:
The pipe T is filled with the pulpy materials to be dried and by means of the
piston C moved to and fro by the machine, a portion of this material is pressed
into the tube K and into the rotating drum B A. When reaching the perforated
part A of the drum the material is freed from its wetness by the effect of the
quickly rotating drum ; the fluid is discharged through the aperture F E, the
material is continuously pressed forward by the feeding-mechanism described above,
and when reaching that part of the drum, which lies opposite to the perforated
drum pl, the material is exposed to the influence of the hot air, passing the
perforations of the drum p¹. The hot air escapes finally through tube G, and the
dry materials leave the drum at H. The machine may be used for drying, cleaning
and washing as required:
.
In case sugar is to be whitened, steam in lieu of hot air must be led
through the shaft w; when used for cleaning or washing, water must be led
to the drum A B through the bored shaft W. The machine may be used for washing
any material.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
1. In centrifugal machines the horizontal shaft w with the drum A B, being open
at one side, and having the central feeding tube K L at the other side, which serves
as bearing for the drum A B, in combination with the drum p, connected firmly
with the drum A. B, for the purpose as described.
2. In centrifugal machines the horizontal shaft w
being open at one side and having the central feeding
with the drum A B,
tube K L at the other

page_text: side, which serves as bearing for the drum A B in combination with the drum p
connected firmly with the drum A B and with a feeding mechanism, for the purpose
as described.
3. In centrifugal machines the horizontal shaft w with the drum A. B, being open
at one side, and having the central feeding tube K L at the other side which serves
as bearing for the drum A B in combination with the drum p and the perforated
drum p connected firmly with the drum A B and with a feeding mechanism, for
the purpose as described.
4. In centrifugal machines the horizontal shaft w with the apertures o and the
drum A B being open at one side and having the central feeding tube KL at the
other side, which serves as bearing for the drum A B in combination with the drum p
and the perforated drum p¹ connected firmly with the drum A B and with a feeding
mechanism, for the purpose as described.
5. In centrifugal machines the horizontal shaft with the apertures and the
drum A B being open at one side and having the central feeding tube K Lat the other
side which serves as bearing for the drum A B in combination with the drum and
the perforated drum pl and with a feeding mechanism consisting of the piston C driven
by the shaft w,
for the purpose as described.
Daated in
LOS
ALUIST
NU
ALISOS ISKORY AUTISLAND
JOHANN SELWIG.
BRUNO LANGE.
By Graham & Graham,
Agents for Applicants.