An Improved Feed Water Heater and Fuel Saver.
Year: 1894

page_text: Date of Application, 3rd Apr., 1894-Accepted, 25th May, 1894
COMPLETE SPECIFICATION.
An Improved Feed Water Heater and Fuel Saver.
We, WILLIAM NAYLOR MORRISS, of Moonee Ponds, in the Colony of
Victoria, Engineer, and RICHARD HALES SMITH, of Domain Road, South Yarra,
in the said Colony of Victoria, Masseur, 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 a feed water heater for a boiler whereby a great saving
of fuel is effected, as we shall describe referring to the accompanying drawings.
Fig. 1 is a side view of part of a locomotive.
Fig. 2 is a front view with smoke door opened.
Fig. 3 is a sectional plan of the feed heater on the line X X of Fig. 4 which is
a vertical section on line Y Y of Fig. 3.
The apparatus is placed in the smoke box of a locomotive or engine over the
exhaust steam pipe Ĥ so far in front of the boiler tubes J that the draught is
not interfered with.
Water from a feed pump or injector passes by a pipe A and check valve B to
the upper chamber C of the apparatus, from which it flows by tubes D into a
lower chamber E and thence by a pipe F bent round the smoke box, through a
valve G into the boiler. As the pump or injector forces the feed water cold to
the apparatus, there is no liability of the pump or injector failing to work, owing
to heating of the water. The exhaust steam passes from through the spaces
within and between the tubes D finally escaping at the top by the nozzle I. Also
the hot gases from the boiler tubes play upon the outer casing of the apparatus,
so that the feed water flowing through the apparatus, becomes highly heated
before entering the boiler.
In order to prevent the apparatus from becoming overheated, when the feed
is shut off, an auxiliary pipe K with cock L connects the boiler to the upper
chamber of the apparatus, allowing free circulation of the boiler water through
the apparatus.
No back pressure on the exhaust results from this apparatus, which entails no
extra work, or trouble as the cold water is simply pumped or injected into the
apparatus instead of into the boiler.
The casing of the apparatus may be cylindrical as shewn and the tubes may be
round, corrugated, twisted or bent in order to extend the heating surface.
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 feed water heater having tubes and water chambers encircling the exhaust
pipe of a locomotive or other engine so that the feed water is heated by the
exhaust steam, substantially as described and illustrated in the drawings.
2. In a feed water heater, the combination of the water chambers C and E the
tubes D, the inlet pipe A, and valve B, and the outlet pipe F, substantially as
described and illustrated in the drawings.

page_text: 3. The auxiliary pipe K to allow circulation of boiler water through the
apparatus when the feed is shut off, substantially as described.
Dated this 3rd day of April 1894.
ABEL & IMRAY,{
Agents for Applicants.