Year: 1886

page_text: I EDMOND ALBIN of Strassburg-Newdorf Alsace Engineer and Manufacturer,
do hereby declare the nature of my said invention and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement :―
The object of our invention is to manufacture an improved grating for the
firing of Steam boilers by means of which the heating force of the fuel is greatly
augmented.
And in order that our said invention may be particularly described and ascer-
tained, reference is hereby made to the accompanying drawings in which similar
letters of reference indicate corresponding parts.
Fig. 1 is a longitudinal sectional elevation. Fig. 2 is a transverse sectional
elevation. Fig. 3 is a plan view, and Fig. 4 is a partial horizontal section, of our
invention.
a b are the grate bars formed with as large a surface as possible and is joined to
the ordinary grate c with an ashpan underneath. It consists of broad flat bars
which lie in sockets, wherefrom they can easily be removed. Another grate de
forming the upper side of a box or case lies underneath the bars a b. This
grate de is also provided with bars parallel to the bars a b, upon that side of the
case which lies towards a b. The bars of de have large openings, in order to
admit sufficient currents of air. The upper end of d e is adjusted a little below
the level of a b at its upper end, but the lower end extends below to a retort f.
This retort is so united as to move with the whole of the apparatus de fi and k in
the closed tubular bearings g g and by the same means the junction with the
channels is effected. The channels begin at the tube plate, and pass on
each inner side of the boiler along the boiler and, making a deflection, enter
near g g into f. The channels n n are for the purpose of leading away some gases
which are sometimes inflamed from the channels, through the valves o o.
Roses m with slide openings are for the regulation of the admission of air to the
channels l l.
In order to clean the two grates, or to disconnect the apparatus def from the
work, the whole lower apparatus d e f may be let down by turning the same in or
round gg by means of the lever k. h is a lever for operating upon the_counter-
balance, and i is the counterweight.

page_text: This arrangement, to bring the heated air from 17 through de into and through
the bars ab is for the purpose of effecting an intense heat from the union of the
gases from the firing material. The contraction of the flue at p prevents the gases
above the grate from entire combustion and they only form a thin flame after
passing p. By means of the concentration of the greatest heating force effect at
the most useful parts of the boiler the maximum use is made of the combustible
material.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is :-
:-
1. The manufacture and use of steam boiler furnaces fitted with main fire
bars a band lower adjustable distributor of hot air de, substantially as herein
before described and shewn on the drawings.
2. The general arrangement, construction and combination of the several and
respective parts together forming our improvements in the construction and
working of steam boiler furnaces, substantially as herein before described
and shewn on the drawings.