Fuel, Vegetable Matter, and Combustible Liquids.
Year: 1888

page_text: Fuel, Vegetable Matter, and Combustible Liquids. .
I, GEORGES ALEXIS-GODILLOT of No. 23 Boulevard de Strasbourg, Paris, France
Engineer do hereby declare the nature of this invention to be as follows:-
My invention has for its object an improved construction of furnace grate for
burning various kinds of fuel, consisting of a series of step-shaped bars having
beneath them troughs containing water for cooling the bars, the water being made to
flow into the uppermost trough, from which it overflows into the troughs below.
For this purpose, the furnace is by preference constructed as follows. The grate.
bars are constructed as concentric semicircular steps, extending in diameter as they
proceed downwards, which steps have a downward curved front edge, and have on
their lower surface a rib that extends down into the water contained in a shallow
trough of corresponding, semicircular form immediately below them.
Below the bottom step of the grate is an ordinary horizontal grate, the bars of
which are carried, on a frame that is suspended from metal rods passing up in the
walls of the furnace, and connected at their upper ends to chains passing over guide
pullies to a shaft or drum which carries a grooved pulley having a chain with a
suspended balance weight attached to its periphery, so that the said weight is made to
balance the weight of the horizontal grate. Thus on raising or lowering the balance
weight, the horizontal grate can be raised or lowered to suit the quantity and description
of fuel in the furnace and it can have a vertically reciprocating motion imparted to it
for the purpose of agitating the fuel so as to free the grate from. ashes, and to cause
the fuel to descend the stepped grate.
ABEL & IMRAY,
Agents for the "Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Furnaces for Burning Granular or Pulverulent
Fuel, Vegetable Matter, and Combustible Liquids.
1 GEORGES ALEXIS-GODILLOT of No. 23 Boulevard de Strasbourg, Paris, France
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 has for its object an improved construction of furnace grate for
burning various kinds of fuel, consisting of a series of step-shaped bars having
beneath them troughs containing water for cooling the bars, the water being made to
flow into the uppermost trougli, from which it overflows into the troughs below.
For this purpose, the furnace is by preference constructed as follows. The grate
bars are constructed as concentric semicircular steps extending in diameter as they
proceed downwards, which steps have a downward curved front edge, and have on
their lower surfaces a rib that extends down into the water contained in a shallow
trough of corresponding semicircular form immediately below them.
Below the bottom step of the grate is an ordinary horizontal grate, the bars of
which are carried on a frame that is suspended from metal rods passing up in the
walls of the furnace and connected at their upper ends to chains passing over guide
pullies to a shaft or drum which carries a grooved pulley having a chain with a
suspended balance weight attached to its periphery, so that the said weight is made to
balance the weight of the horizontal grate. Thus on raising or lowering the balance
weight the horizontal grate can be raised or lowered to suit the quantity and
description of fuel in the furnace and it can have a vertically reciprocating motion
imparted to it for the purpose of agitating the fuel so as to free the grate from ashes,
and to cause the fuel to descend the stepped grate.
The accompanying drawings shew the application of my above described improved
construction of furnace to a steam boiler. Fig. 1 shews a longitudinal section.
Fig. 2 a cross section, Fig. 3 a sectional plan and Fig. 4 a part cross section to an
enlarged scale.
Each semicircular bar 6 of the grate B has on its underside a rib a which dips into
the water contained in a trough A. The water supply enters into the top trough and
it overflows thence successively into the troughs below.
At the lower end of the semicircular stepped grate is arranged a moveable
horizontal grate C, to which an up and down motion can be imparted from time to
time, whereby the ashes and cinders of the fuel are made to descend into the ash pit,
the fuel during its combustion being made to descend gradually from the feed hopper
on to the stepped grate and thence on to the horizontal grate. This grate consists of
straight bars Cresting with their ends upon sheet iron plates c c which are rivetted or
bolted to the upper ends of uprights d d the lower ends of which are fixed to lower
plates e e. These are extended beyond the sides of the furnace chamber, as shewn at

page_text: Fig. 2 and are there connected together by cross bars ff, to the middles of which are
attached vertical rods g g. These rods are connected at their upper ends to chains
passing over guide pullies to drums on a shaft D having grooved pullies E from
which are hung balance weights p p. Thus on raising or lowering these weights, the
grate C can be raised and lowered as above described.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The improved construction of furnaces wherein there is combined with a stepped
semicircular grate cooled by water troughs, a horizontal grate situated at the bottom
of the semicircular grate, and capable of receiving an up and down motion,
substantially as herein described.
Dated this 5th day of April 1889.
ABEL & IMRAY,
Agents for the Applicant.