Improvements in Water and other Liquid Heaters and in Steam Superheaters.
Year: 1899

page_text: Date of Application, 27th Dec., 1899-Accepted, 28th Apr., 1900
COMPLETE SPECIFICATION.
Improvements in Water and other Liquid Heaters and in Steam
Superheaters.
I, HEINRICH FRIEDRICH WERNER CARL WIPPERN, of Hamburg-Steinwärder,
Germany, Engineer, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertaine:l
in and by the following statement:-
My present invention relates to heaters the object being to provide an apparatus
of this kind, adapted to heat the feed water and steam, and in which the heating
is effected simultaneously by the combustion gas of the firing and by the heating
steam which, by the contact with the highly heated walls of the heater is reheated
or overheated in accordance with the construction of the apparatus. In any case,
the steam is employed to receive heat from the combustion or fire-gas and to
transmit such heat to the fluid to be heated.
The desired end is attained by the construction, novel combination and arrange-
ment of parts, hereinafter fully described and claimed.
In the accompanying drawings:
Fig. 1 is a vertical central section and
Fig. 2 a horizontal cross section of my novel heater applied to a marine boiler.
Figs. 3 & 4 show an elevation and plan view respectively of same.
Referring to Figs. 1-4, inclusive, a represents a tubular double walled receptacle
having upper lateral nozzles c, d, serving to transport the apparatus and to receive
the ends of a coiled tube e, coiled around the tube b formed by the inner wall of
the receptacle. The latter is closed by means of a cover f, the ends g, h, of
which rest on said nozzles c, d, thus forming closed spaces. The number of the
lateral nozzles may be varied in accordance with the local circumstances of each
particular case.
The liquid to be heated is brought into the coil e through the end i and flows
downwards through the various windings to flow through the pipe k to the point
of utilization. In order to lodge said pipe k the receptacle is widened on one side.
The heating steam is introduced through a nozzle 7, and escapes through open-
ings m in the cover or through any other conduits. Said steam gives its own
heat and that received from the fire-gases to the contents of the coil. The fire-
gas envelopes the outer surfaces of the receptacle a as well as the inner tube b
and then escapes into the chimney.
The above construction illustrates a feed-water heater for marine boilers,
arranged in the forward smoke-box, the apparatus being in connexion with an
engine without condenser (not shown).
This novel apparatus enables the contents of the coiled tube to be very intensely
heated, even if constructed in small sizes and to obtain a great saving of fuel
when employed as a feed-water heater.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
10) In the improved heater, the combination with the tubular double-walled

page_text: receptacle and lateral nozzles on said receptacle, of a coiled tube lodged between
the walls of said receptacle and coiled around the inner wall thereof, means for
admitting steam between the walls of the receptacle, and means for leading said
steam from the receptacle, substantially as set forth.
20) In the improved heater, the combination with the tubular double-walled
receptacle, of a coiled tube lodged between the walls of said receptacle and coiled
around the inner wall thereof, a nozzle on the outer wall of the receptacle for
the admission of steam into the spaces between said walls, and means for leading
said steam from the heater substantially as set forth.
30) The improved heater, constructed and arranged substantially as described
and shown.
ROBERT E. PHILLIPS, Assoc.M.I.C.E., M.I. Mech. Eng.,
Consulting Engineer & Patent Agent,
70, Chancery Lane, London, W.C., Associate Agent.