Improvements in Furnaces for Evaporating Pans and other.. Purposes
Year: 1896

page_text: Date of Application, 28th Dec., 1896
Complete Specification Left, 28th Oct., 1897-Accepted, 11th Dec., 1897
PROVISIONAL SPECIFI
TION.
Improvements in Furnaces for Evaporating Pans and other..
Purposes.
RICHARD HENRY YEOMANS Manager of Salt Works, Middlewich Cheshire do hereby
declare the nature of this invention to be as follows:-
Improvement in Furnaces. I arrange the grate inclined from front to back and
supply the fuel through a Hopper like arrangement on the furnace front. While at
the back or lower end of the grate I arrange a movable grate so that by the
manipulation of this movable grate an opening is left through which the incombustable
material may be removed from the fire.
Further I arrange over part of the grate a brick arch and by suitable flues I admit
air under the arch or over it as required so as to obtain immediate combustion of the
gases as they are evolved at a high temperature, and so facilitate complete
combustion and prevent the huge volumes of smoke so commonly seen immediately
after firing. The arch being closed at back end causes the heated air to mix with
heated gases above the fire."
Dated this 23rd day of December 1896.
COMPLETE SPECIFICATION.
Improvements in Furnaces for Evaporating Pans and other
Purposes.
1, RICHARD HENRY YEOMANS Salt Works Manager of Middlewich in the County of
Cheshire I do hereby declare the nature of this invention aud in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement:-
This invention has for its object and purpose improved combustion and heating
power of Furnaces. The drawings hereunto annexed set forth the apparatus in the
most approved form at present known.
Refer to drawings
To ensure the best combustion I construct an arch A in congunction with an air
Hue B forming a combustion chamber C. The coal or slack is admitted through an
opening at D and passing through the various stage of combustion finally the in-
combustable matter falls at E on to the floor of the Furnace to be removed as required.
The air entering Hue at F on its way through flue B to the combustion chamber
becomes heated and mixing with the hot gases from the incandesant portion of the
fire finally unites with the hydrocarbon gases distilled from the coal or slack forming
a combustable mixture at a temperature high enough to ensure the best possible
combustion.

page_text: The drawings hereto attached shew the arrangement of Furnace to suit open
evaporation. But the principle may be employed to Boiler Furnaces or to any other
Furnace.
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
In a Furnace
An Arch A to ensure the mixture of the gases at the highest temperature as herein
described. Such arch may be honeycombed as shewn or not. The flue B to conduct
the air. to the combustion chamber C heating the said air enroute. Such flue may
be constructed in the side walls of the Furbace or underneath as shewn.
At the point of admission to the combustion chamber the back wall of the said
chamber may be honeycombed as shewn or one large opening employed:
Dated this 27th day of October 1897
RICHARD HENRY YEOMANS.