IMPROVEMENTS IN CENTRIFUGAL MACHINES
Year: 1885

page_text: 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 the invention for "IMPROVEMENTS IN
CENTRIFUGAL MACHINES" (a communication to me from abroad by Emil Rothe of
Breitenau, in the Empire of Germany) to be as follows:-
This invention relates to centrifugal machines of the ordinary wellknown kind
in which a vertical drum or vessel is made to revolve at a high speed by means of
a vertical shaft which carries it, the material or objects which are to be subjected
to the action of the centrifugal force being placed within the drum.
It has for its object novel methods of strengthening the drum or vessel and of
compensating irregularities of movement caused by the unequal distribution of the
objects in the vessel.
Round the exterior circumference of the drum or vessel are fixed at suitable
distances apart, a sufficient number of strong metal hoops, which strengthen the
vessel and serve to prevent the liability to disruption by centrifugal force.
Below each of these hoops is arranged a similar hoop or ring of greater internal
diameter so that they are some distance from the sides of the vessel, these rings
being carried by the fixed hoops or suspended to the latter by a sufficient number
of short chains.
If the objects which are to be subjected to the action of centrifugal force are
unequally distributed in the drum or vessel, which is unavoidable in practice,
irregularity is caused in the revolution of the vessel, but in such case the loose or
suspended rings will speedily occupy such a position, according to the well known
laws of mechanics, that equilibrium of the rotating parts is re-establised.
In such position the suspended rings will lean against the overcharged side
of the drum or vessel and will so increase the security against disruption of
the latter.
Suspended regulating rings answering the same purpose 0.8 those already
described may also be arranged at the bottom of the drum or vessel, being

page_text: suspended by chains and prevented from excessive oscillation or movement by
concentric rings or cylinders fixed to the bottom of the vessel.
Regulating apparatus of the novel kind described has the advantage of occupying
no room inside the vessel itself, whilst it aids in securing the latter against
disruptive fracture.
50
T 1
Improvements in Centrifugal Machines.
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 (a communication to me
from abroad by Emil Rothe, of Breitenau, in the Empire of Germany) to be as
follows:-
This invention relates to centrifugal machines of the ordinary well known kind
in which a vertical drum or vessel is made to revolve at a high speed by means of
a vertical shaft which carries it, the materials or objects which are to be subjected
to the action of the centrifugal force being placed within the drum.
It has for its object novel methods of strengthening the drum or vessel and of
compensating irregularities of movement caused by the unequal distribution of the
objects in the vessel.
The accompanying drawing is in illustration of the invention and represents a
side view of a centrifugal machine to which it is applied.
Round the exterior circumference of the drum or vessel A are fixed at suitable
distances apart, a sufficient number of strong metal boops a which strengthen the
vessel A and serve to prevent the liability of disruption by centrifugal force.
Below each of these hoops is arranged a hoop or ring b of greater internal
diameter so that they are some distance from the sides of the vessel A, these rings
being carried freely by the fixed loops a or suspended to the latter by a sufficient
number of short chains c.
If the objects which are to be subjected to the action of centrifugal force in the
machine are unequally distributed in the drum or vessel A, which is unavoidable in
practice, irregularity is caused in the revolution of the vessel, but in such case
the loose or suspended rings 6 will speedily occupy such a position, according
to the well known laws of mechanics, that equilibrium of the rotating parts is
re-established.

page_text: In such position the rings b will lean against the overcharged side of the drum or
vessel A and will so increase the security against disruption of the latter.
Suspended regulating rings answering the same purpose as those already
described may also be arranged at the bottom of the drum or vessel A. as shewn in
the drawing, being suspended by chains c and prevented from excessive oscillation
or movement by concentric rings or cylinders & fixed to the bottom of the vessel
as shewn.
Regulating apparatus of the novel kind described has the advantage of
occupying no room inside the vessel itself, whilst it aids in securing the latter
against disruptive fracture.
Having now particularly described and ascertained the nature of the said
Invention, and in what manner the same is to be performed, I declare that what
I claim is
A regulating device for centrifugal machines, consisting of the rings b surrounding
the vessel A, and either resting upon the hoop a, or suspended, substantially as and
for the purpose described and shewn in the drawing.