Centrifugal Separators.
Year: 1888

page_text: [Communicated from abroad by JOHN BERNSTRÖM, Managing Director of Aktiebolaget
Separator, Stockholm, Sweden.]
Centrifugal Separators.
I, HENRY HARINGTON LEIGH, Fel. Inst. P.A., Assoc. M. Inst. C.E., practising as
Phillips & Leigh, of No. 22, Southampton Buildings, Chancery Lane, in the County
of Middlesex, Engineer and Patent Agent, 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 Invention relates to improvements in apparatus for heating liquids to such
temperature as may be required for producing a proper result when treating the said
liquids in centrifugal separators; and the objects of the said improvenients are, firstly,
to prevent any overheating; and, secondly, to secure the best possible results from the
heating agent.
These objects are gained by using the apparatus illustrated in the accompanying
drawings in which,
Figure 1 is a vertical section; and Figure 2, a plan corresponding therewith.
Similar letters refer to similar parts throughout the figures.
The liquid to be treated is filled into the receptacle, A, from the bottom of which
descends a tube, a, into a socket, a³, attached to the bottom of the heater, B. As the
lower end of the tube, a, is provided with slots, a', corresponding with similar slots in
the socket, a², the supply of liquid to the beater, B, can be easily regulated by
turning the receptacle, A, whereby the slots in the tubo and in the socket are caused
to coincide more or less completely.
The space, b, between the outer and inner shell of the heater, B, is filled with water,
or any other suitable liquid, which is beated by steam from the steam supply pipe, b¹.
The excess of water in the space, b, from the condensation of steam flows out through
the pipe, b. The degree of heat within the heater, B, depends upon the nature of the

page_text: liquid in the space, b, as, for instance, pure water cannot be heated over 212°
Fahrenheit, while aqueous solutions of salts can be raised to a much higher
temperature.
The liquid to be treated is heated at first inside the heater, B, and after filling the
latter, flows over the top of the same, and downwards over the inclined shell, ³,
which, being heated from inside, communicates nearly all its heat to the liquid flowing
over the same in a very thin layer. The heated liquid is collected within the bowl, C,
and may pass through the funnel, c, directly to the centrifugal separator.
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 :-
1. In apparatus for heating liquids to be treated in centrifugal separators, the
combination with the steam supply pipe, 6, and the regulating pipe, 62, of the vessel, B,
provided with an outer inclined shell, 63, as substantially set forth.
2. In apparatus for heating liquids to be treated in centrifugal separators, the
combination of the receptacle, A, and the tube, a, provided with longitudinal slots, a¹,
with the vessel, B, and the slotted socket, a², substantially as and for the purpose
specified.