Improved Apparatus for Supplying Purified and Heated Feed-water to the Boilers of Non-condensing Steam Engines.
Year: 1893

page_text: Date of Application, 3rd Feb., 1893
Complete Specification Left, 15th May, 1893-Accepted, 24th June 1893
PROVISIONAL SPECIFICATION.
Improved Apparatus for Supplying Purified and Heated Feed-water
to the Boilers of Non-condensing Steam Engines.
"
We, GEORGE ERNEST HUDSON of "The Scarborough Brewery Company
Westborough, Brewer and Wine Merchant, and GEORGE SANDERSON of 25
Victoria Road, Mechanical Engineer, both of Scarborough in the County of York,
do hereby declare the nature of this invention to be as follows:-
The object of our invention is to remove the larger portion of the grease, lime,
and other impurities from the exhaust steam of non-condensing engines, and to
utilize the water obtained therefrom, while still in its heated state, as feed-water
for the boilers of such engines.
To carry out our invention we conduct the exhaust steam direct from the
cylinder of the engine through a pipe connected to the upper part of a steam-tight
chamber which is provided with an outlet pipe at the bottom and also with an
exhaust steam pipe at the top. In this chamber the larger portion of the grease
contained in the steam, whether volatilized or carried over mechanically by the
rush of steam, is deposited, and from thence is drawn off by means of the outlet
pipe before mentioned.
The exhaust pipe from the top of this chamber conducts the main volume of
steam to a second and larger chamber, wherein one or more fine jets or sprays of
cold water meet the inflowing steam, immediately lowering its temperature and
partly condensing it, whereby the lime and other impurities held in solution by the
steam at its higher temperature, and also that portion which is held in suspension
mechanically, are precipitated as the rush of steam is retarded and form a solid
deposit at the bottom of the chamber, which deposit is removed periodically through
a blow-off valve or orifice provided for the purpose.
The hot water thus generated and purified by condensation, remains in the second
chamber and is drawn off as required for the purpose of supplying the boiler
through a feed-pipe which projects upward into the chamber a few inches, sufficient
to be clear of the deposit before mentioned.
This second chamber is provided with an overflow pipe for the egress of surplus
hot water, and also with an escape pipe for uncondensed steam.
Dated this Second day of February 1893.
WILLIAM J. BAKER,
Peasholme House, Scarborough, Ageut for the Applicants.
COMPLETE SPECIFICATION.
Improved Apparatus for Supplying Purifled and Heated Feed-water
to the Boilers of Non-condensing Steam Engines.
"
We, GEORGE ERNEST HUDSON, of "The Scarborough Brewery Company
Westborough, Brewer and Wine Merchant, and GEORGE SANDERSON, of 25,
Victoria Road, Mechanical Engineer, both of Scarborough, in the County of York,
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 object of our invention is to remove the larger portion of the grease, lime,
and other impurities from the exhaust steam of non-condensing engines, and to

page_text: utilize the water obtained therefrom, while still in its heated state, as feed-water
for the boilers of such engines, whereby the deposit of mud or incrustation of the
boiler. is prevented, and less fuel is required to produce and maintain the necessary
supply of steam.
In carrying out our invention we conduct the exhaust steam direct from the
cylinder of the engine through a pipe connected to a steam tight chamber, which is
provided with a second exhaust pipe for the escape of uncondensed steam, and an
outlet pipe at the bottom.
In this first chamber the larger portion of the oil or grease contained in the
steam, whether volatilized or carried over mechanically by the rush of steam is
deposited, mixed with water, and from thence is drawn off by means of the outlet,
pipe before mentioned.
The exhaust pipe leading from this first chamber conducts the main volume of
steam to a second chamber where one or more jets or sprays of cold water meet the
inrushing steam, immediately lowering its temperature and condensing it. The hot
water thus obtained falls into the lower part of the second chamber from whence it
is drawn off by means of pipes for use as required.
When a jet of hard water, or water containing lime is used for condensation in
the above named apparatus, a portion of the lime combines with the small residue
of oil or grease in the steam, and forms a deposit which is immediately precipitated
to the bottom of the chamber, where also is deposited the lime set at liberty in the
spray of cold water which comes in contact with the heated steam.
These lime deposits form a solid mass at the bottom of the second chamber, for
the removal of which deposits a mud hole is provided in a convenient position.
It is found in practice that the addition of the water used for condensation to
that formed by the condensation of the exhaust steam, produces a larger volume of
hot water than is necessary for the purpose of supplying the boiler. The surplus
may therefore be utilized for washing, dyeing, and other purposes in which a
supply of heated and purified water is essential.
An escape pipe from the second chamber carries off any surplus steam into the
open air and prevents any possibility of back pressure.
In order to enable our invention to be fully understood we will proceed to
describe the same with reference to the accompanying drawings in which :-
Figure represents a sectional elevation of one form of our condensing and
purifying apparatus, in which the second chamber is fixed above the first,
Figure 2 represents a sectional elevation of a modified form of our condensing
and purifying apparatus, in which the second chamber is contained within the first,
by which arrangement a greatly increased condensing and collecting surface for
oil or grease is obtained, and heat is more fully maintained in the second chamber,
which contains the hot water.
Similar letters refer to similar parts in both, drawings.
The exhaust steam pipe A from the engine,., enters the side of the first
chamber B B, and in this chamber the main portion of the oil and grease becomes
separated from the steam, and is deposited upon the sides, or falls direct to the
bottom, from whence it is drawn off, mixed with a certain proportion of water, by
the valve N. A mud-hole M is also provided, through which the chamber may be
cleaned out.
From this first chamber B B the steam passes to the second chamber, C C by
the pipe D, in entering which chamber the steam, is met by a jet of cold water.
from the pipe E, which jet immediately condenses the steam, and causes it to fall
as hot water to the lower part of the chamber, from whence it is withdrawn by the
feed-pipe F.
The deposit of lime and other impurities is represented at K, which deposit is
removed periodically through the mud-hole L. An overflow pipe is represented'
at H, and an escape pipe at J which conducts into the open air any surplus
uncondensed steam.

page_text: 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. A depositing chamber for the purpose of condensing and arresting the passage
of oil or grease to the steam-condensing chamber of water-heating and purifying
apparatus, such as is herein described, and represented in the accompanying
drawings.
2. The combination of the chamber for condensing and collecting oil or grease
from exhaust steam with the steam condensing, lime depositing, and hot water
supply chamber, in which steam is condensed by means of a jet of cold water, all
the various parts constructed, combined, and operated in the manner herein before
described, and as represented in the accompanying drawings.
3. The general arrangement of the various parts of our improved condensing and
purifying apparatus, consisting of the two chambers for their respective purposes,
whether such chambers are fixed together or at a distance from one another, the
exhaust pipes, cold water jet, feed pipe, mud-holes, and outlet valves, all the
respective parts being constructed and operating in the manner described.
Dated this Tenth day of May 1893.
WILLIAM J. BAKER,
Peasholme House, Scarborough, Agent for the Applicants.