apparatus for heating the feed-water of boilers etc
Year: 1896

page_text: . Date of Application, 21st Nov., 1896
Complete Specification-Left, 21st Aug., 1897-Accepted, 30th Oct., 1897
I, PETER SPAETH, Workinaster of Dillingen in the Province of Rhineland and
Kingdom of Prussia do hereby declare the nature of this invention to be as
follows:-
The present improvement relates to an apparatus for heating the feed-water of
boilers etc.
In the annexed drawing
Figure 1 shows a transverse section,
Figure 2 is a longitudinal section through a single boiler provided with the
apparatus to the line -, of Figure 1, and
Figure 3 a horizontal section to the line y-y of Figure 1;
In Figures 4 to 6 the arrangement of the apparatus is represented in similar
sections In a set of several boilers.
The apparatus consists of a number of tubes C lying in the side channels B of the
boiler A.
These tubes are joined by several connecting tubes either between or behind the
boilers.
In order to make it possible to supply tubes with cold water while the boiler is
being heated a reservoir D is arranged.
The feed water pipe is provided with a safety-valve and evaporating tube which
can be opened when the boiler is not in use.
The apparatus bas the advantage of the feed-water being heated directly by the
fire-gases of the boiler flowing towards the former, thus rendering any other meaus
of heating unueccessary. A great saving in fuel is effected by the new apparatus,
since fuel of an inferior kind can be used.
This is not the case with heaters arranged in the upper channels or behind the
boiler, because even in a boiler of 80 sq. m. heating surface the gases are so used up,
that the stream of water is no longer heated by them.
Dated this 20th day of November 1896.
BERNHARD BROCKHUFS,
For Peter Spaeth.
I, PETER SPAETH, Workmaster of Dillingen in the Province of Rhineland and
Kiugdom of Prussia do hereby declare the nature of this invention and in what
5 manner the same is to be performed, to be particularly described and ascertained in
and by the following statement:-
The present improvement relates to an apparatus for heating the feed-water o!

page_text: In the drawing filed with the Provisional Specification,
Fig. 1 gives a transverse section,
Fig. 2 a section - according to Fig. 1. through a single boiler provided with tho
apparatus, and
Fig. 3 a horizontal section on line y-y of Fig. 1;
In Figs. 4 to 6 the arrangement of the apparatus is represented in similar sections in
a set of several boilers.
The apparatus consists of a number of tubes C lying in the side channels of the
boiler A. These tubes are joined by several connecting tubes either between or
behind the boilers.
In order to make it possible to supply the tubes with cold water while the boiler
is being heated a reservoir D is arranged.
The feed-water pipe is provided with a safety-valve V and with a tube T for the
evaporation of humidity from the feed-water pipe, when this pipe is not in use for a
longer time. For that purpose the tube T is provided with a shut-off-cock or
valve S which is closed, when the feed water pipe is in use, and can be opened when
this pipe is not in use.
The apparatus has the advantage of the feed-water being beated directly by the
fire-gases of the boiler flowing towards the former, thus rendering any other ineans
of heating unnecessary. A great saving in fuel is effected by the new apparatus,
since fuel of an inferior kind can be used.
This is not the case with heaters which lie in the upper channels or behind the
boiler, because even in a hoiler of 80 sq. metres heating surface the gases are so used
up, that the stream of water is no longer heated by them.
Having now particularly described and ascertained the nature of iny said
invention and in what manner the same is to be performed, I declare, that what I
claim, is:
Apparatus for heating the feed-water of boilers, distinguished by the arrange-
ment of water circulating-tubes C in the side channels B of the boiler A as well as of
a water tank D above A.
BERNHARD BROCKHUES,
For Peter Spaeth.