Improvements in Steam Boilers.
Year: 1894

page_text: Date of Application, 14th Mar., 1894-Accepted, 12th May, 1894
COMPLETE SPECIFICATION.
Improvements in Steam Boilers.
I, GUSTAV LEUCHS of 23 Promenadestrasse, Darmstadt, in the German Empire,
Manufacturer, 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 :-
This invention relates to water tube boilers and its objects are to promote
a more efficient circulation of the water and to effect a smokeless combustion of
the fuel.
The accompanying drawings, reference to which is hereinafter made, illustrate
in what manner this invention may be carried into effect.
Figures 1 and 2 represent respectively end and side elevations of a boiler and.
its accessories constructed to embody these improvements.
The furnace F is inclined and passes beneath the two lower transverse tubes or
boilers A B which communicate with one another by the pipes C D. The upper
boiler G which contains the steam space is in communication with the lower ones.
by the circulating pipes a b the latter of which conducts the cooler water of the
upper boiler to the lower one, A, while the former conducts the hotter water-
and steam generated in the tube or boiler B to the upper boiler G. An efficient.
circulation is thus maintained which effectually prevents the collection of steam.
bubbles or the settling of mud in the boilers A B. Much of the risk of damaging
the boiler is thus obviated.
As an alternative arrangement the boilers A and B instead of being connected
directly to the boiler G by the pipes a and b may communicate by one or more
pipes with the water chambers H or H', and they may if desired be in an inclined
instead of a horizontal position. If desired also one of the boilers A B may
be dispensed with and the circulating pipes be connected with the remaining
one the pipes being preferably lengthened to communicate with opposite ends of
the boiler.
Owing to the inclination of the grate of the furnace F the fuel which is
introduced slides or falls down and takes the place of that already consumed.
A regulatable supply of air is admitted over the furnace and into the space
between and around the cross boilers A and B where the complete combustion of
the smoke is effected. Any of the ordinary devices commonly in use may be
employed to regulate the air supply.
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 :-
1. The combination and arrangement with a water tube boiler of a lower
transverse boiler or boilers provided with circulating pipes or tubes substantially
as herein before described and as illustrated by the accompanying drawings.
2. The combination with a water tube boiler of a lower transverse boiler or
boilers and an inclined furnace grate substantially as hereinbefore described and as
illustrated by the accompanying drawings.
3. A water tube boiler constructed and arranged substantially as hereinbefore
described and as illustrated by the accompanying drawings.
Dated this 13th day of March A.D. 1894
WILLIAM E. HEYS,
Agent for the Applicant.