Improvements in Apparatus for Heating Feed-water for Steam Boilers.
Year: 1891

page_text: Date of Application, 21st July, 1891
Complete Specification Left, 20th Apr., 1892-Accepted, 21st May, 1892
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Heating Feed-water for Steam
Boilers.
I, THOMAS STARK, of No. 1 Canton Street, Poplar, London, E. Engineer do
hereby declare the nature of this invention to be as follows:-
My invention is for the purpose of heating the boiler feed-water of marine and
other steam engines, by means of steam from the boilers, and consists in forming a
suitable casing or jacket round the main feed pipe either wholly or partially
covering the same. This jacket is supplied with boiler steam by means of a pipe
with a regulating valve or cock and the water condensed in the jacket is discharged
into the main feed pipe, or into the condenser, hotwell or other convenient part, or
parts by means of suitable valves or cocks. The outside of the casing or jacket
may be covered with nonconducting composition.
Dated this 10th day of July 1891.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Heating Feed-water for Steam
Boilers.
I, THOMAS STARK, of No. 1 Canton Street, Poplar, London, E. Engineer, 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:-
My invention is for the purpose of heating the boiler feed-water of marine and
other steam engines by means of steam from the boilers, and consists in forming a
suitable casing or jacket round the main feed pipes either wholly or partially
covering the same. This jacket is supplied with boiler steam by means of a pipe
with a regulating valve or cock and the water condensed in the jacket is discharged
into the main feed pipe or into the condenser, hot well or other convenient part or
parts by means of suitable valves or cocks. The outside of the casing or jacket
may be covered with non-conducting composition.
In order that my invention may be fully understood I append a sheet of
explanatory drawings.
Figure 1. is a longitudinal view partly in section of the apparatus, and
Figures 11. & 111. are sections at the lines Y Y & Z Z respectively.
A is the main feed pipe from the feed pump discharge B to the boiler feed check
valve C. D is the casing or jacket which surrounds the feed pipe, one end being
jointed to the flange E which is enlarged for the purpose and the other end being
kept tight by means of an ordinary gland and stuffing box F which allows freedom
for expansion.
The steam to heat the feed water enters at G and may be regulated by any
suitable valve or cock (not shewn).
The condensed steam is drained by means of a valve or cock H to the main feed
pipe, condenser, hot well or other convenient part or parts. The outside of the
casing D may be covered with any non-conducting composition to prevent radiation
of heat into the atmosphere.
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page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :
A feed water heater constructed substantially as described and illustrated.
THOMAS STARK.