Improvements in Apparatus for Separating Water from Steam.
Year: 1895

page_text: Date of Application, 28th Dec., 1895
Complete Specification Left, 25th Sept., 1896-Accepted, 28th Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Separating Water from Steam.
We, JOHN ALFRED MORRIS, and WILLIAM THOMAS HATCH, both of the Empire
Works, Great Bridgewater Street, Manchester, in the County of Lancaster, Engineers,
do hereby declare the nature of this invention to be as follows:-
This invention relates to apparatus for drying steam or separating therefrom
particles or drops of water carried in suspension therein.
It consists essentially of a chamber into which the steam passes fitted with or
divided into compartments by a stationary screw placed longitudinally therein and
provided with a central passage through which the dry steam passes away the heavier
particles of water being thrown to the outside by centrifugal action consequent upon
the flow of the steam round the convolutions of the screw.
In carrying out the invention we form a cylindrical casing with an inlet passage or
opening through which live steam may enter. In the chamber formed in the interior
of this casing we fit a screw preferably of Archimedean shape the tops of the threads
fitting closely against the interior of the casing thus forming a spiral passage through
the chamber around the centre of the screw. In the bottom of the chamber sufficient
space or a second chamber is provided in which water can collect and from which it
can be drawn off.
The screw is made tubular or with a hollow centre and at the inner end is preferably
perforated to allow for the passage of the steam. At the outer end it is connected
with a steam pipe thus the steam first traverses the spiral passage and then the passage
in the interior of the screw.
In action steam is admitted to the chamber and flows rapidly along the spiral
passage therein formed by the screw. This rapid movement of the steam causes the
particles of water contained therein to be thrown outwards against the casing of the
chamber and there coalesce and trickle down whilst the dryer and lighter steam
remains near the centre of the screw and flows into the passage in the interior through
the perforations or through the aperture in the end. The water which has been
separated runs down the spiral of the screw and collects in the bottom of the chamber
or in a second chamber or steam trap provided for the purpose. A steam trap can be
connected to the chamber to draw off the water as it accumulates.
Dated this 27th day of December 1895.
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.
Improvements in Apparatus for separatis
6313
We, JOHN ALFRED MORRIS, and WILLIAM THOMAS HATCH, both of the Empire
Works, Great Bridgewater Street, Manchester, in the County of Lancaster, Engineers,
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 :-
This invention relates to apparatus for drying steam or separating therefrom particles
or drops of water carried in suspension therein.

page_text: It consists essentially of a chamber into which the steam passes fitted with or
divided into compartments by a. stationary screw placed longitudinally therein and
provided with a central passage and a number of perforations through which the dry
steam passes away, the steam entering said passage through the perforations and also
through a bottom opening while the heavier particles of water. are. thrown to the
outside by centrifugal action consequent upon the flow of the steam round the
convolutions of the screw, and collect in the bottom of the chamber.
In the accompanying drawing the apparatus is illustrated in sectional elevation.
We form a cylindrical casing A with an inlet passage or opening a through which
live steam may enter. In the chamber B formed in the interior of this casing A we
cast or otherwise fit a hollow screw C preferably of Archimedean shape the tops of the
threads joining or fitting closely against the interior of the casing A thus forming a
spiral passage through the chamber around the centre of the screw.
In the bottom of the chamber sufficient space or a second chamber B' is provided in
which water can collect and from which it can be drawn off.
The screw C is made tubular or with a hollow centre and at the lower end is
perforated to allow for the passage of the steam into the interior. The steam enters
the passage D in the interior through the perforations c and thus the force of the
current of steam is gradually reduced so as not to be forced downward to impinge
upon the water which collects in the lower chamber B¹. The dry steam is withdrawn
through the outlet d.
The threads of the screw are made inclined outwards on the upper side to drain the
water as it collects away from the perforations c to prevent it entering the central
steam passage.
The lower chamber B¹ is fitted with a gauge glass E and a draw off pipe F through
which the waste water is carried away. A steam trap may be connected to the pipe F
to draw off the water as it collects.
In action steam is admitted to the chamber B through the inlet a and flows rapidly
along the spiral passage therein formed by the screw. This rapid movement of the
steam causes the particles of water contained therein to be thrown outwards against
the casing A of the chamber B and there coalesce and trickle down whilst the dryer
and lighter steam remains near the centre of the screw and flows into the passage D
in the interior through the perforations c or through the aperture in the end. The
water which has been separated runs down the spiral of the screw and collects in the
bottom of the chamber B' or in a second chamber or steam trap provided for
the purpose.
A special feature of our apparatus is the formation of the perforations c in the
hollow screw C by which the force or velocity of the current of steam is gradually
reduced before it reaches the end of the spiral passage and so does not again take up
water from the chamber B' after it has been separated.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
An improved apparatus for separating water from steam constructed and arranged
substantially as described and shown in the drawings.
Dated this 17th day of September 1896.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents..