Improvements in Liquid Fuel Furnaces for Heating or Smelting or Refining Metals.
Year: 1897

page_text: Date of Application, 12th Mar., 1897
Complete Specification Left, 28th Dec., 1897-Accepted, 19th Feb., 1898
PROVISIONAL SPECIFICATION.
Improvements in Liquid Fuel Furnaces for Heating or Smelting or
Refining Metals.
JAMES DAVIES, Engineer, Meeting Street Engine Works, Wednesbury &
ALFRED SANDERS, Smelter, No. 5, Wurstone Lane, Birmingham, do hereby
declare the nature of this invention to be as follows:-
Our invention consists in construction & arrangment & use of oil or other fluid
substance used for heating or smelting whereby great economy & simplicity is
gained or effected. The furnace is so constructed that with oil being heated
before it enters the vapourizer & ejected by air or steam through a twyer or
burner made to stand the heat. The blast or steam being heated before entering
the furnace or twyers effects a great saving in the cost of oil & obtaining a greater
heat. And also heating the oil before it enters the vapourizer & the oil is forced
under pressure by a pump into fine sprays befor entering the twyer or nozzle.
In combination with the blast of air or steam & by heating the blast or steam
before entering in the opposite end of furnace to the oil, blast or steam meeting
the vapourized oil & blast in the furnace forms a combustion of intense heat. The
oil vapourized being a pure intense heat without refuse, produce a superior material
in the smelting, & less persentage of wasted metal. Owing to construction & the
manner in which the heat is obtained, no draft or draught is required by a
high chimney & thereby carrying away the metal in the shape of fume causing a
loss of metal in refining. But in our furnace & combination of heating the blast,
steam or oil before entering, no strong draught is required by a chimney only
sufficient to carry the vapour or odour arising from the combustion & material in
heating or smelting, the special twyers have a water space around them to cool
them.
COMPLETE SPECIFICATION.
Improvements in Liquid Fuel Furnaces for Heating or Smelting or
Refining Metals.
JAMES DAVIES, Engineer, Meeting Street, Wednesbury, & ALFRED SANDERS,
Smelter, 5, Warstone Lane, Birmingham, 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:
Improvement in furnaces for smelting or refining metals or other furnaces heated

page_text: by oil. The invention consists in the construction & arrangment & use of oil or
other fluid substance used in heating & melting whereby great economy & sim-
plicity is gained or effected. The furnace is so constructed that with oil vapourised
& ejected by air or steam. The blast being heated before entering the furnace
effects a great saving in the cost of oil & obtains a greater heat. Also heating
the oil, it being forced under pressure by a pump before entering twyer or nozzle
in combination with the blast of air or steam, & by heated blast or steam entering
in the opposite end of furnace to the oil. The oil & blast meeting the vapourised
oil in the furnace formed a combustion of intense heat. The vapourised oil being
a pure intense heat without any refuse, produces a superior material & less per-
centage of wasted metal. Owing to the construction & manner in which the heat is
cbtained no draft or draught is required by a high chimney & thereby carrying
away the metal in the shape of fume causing a loss of metal. But in our furnace
& combination of twyers no strong draught is required only sufficient to carry
away the vapour smell arising from the combustion material smelting.
The air or blast can be so arranged as to pass through a regenerating chamber
heated by the waste heat passing through another, while one is re heated by wasto
heat. The air being passed through a regenerater is expanded & will thus require
larger twyers than with ordinary fan blast.
The air or blast is heated by being passed through a tube or chamber placed in
a convenient part of furnace, heated by waste heat, either on the top or side or in
any position the waste heat escapes. The chamber can be constructed either by
cast iron or other material to with stand the heat. Twyer is so arranged to heat
the steam when steam is used, the steam pop through a coil of pipe which is
rast in the twyer cuseing so pintrating the coil from being burnt by the heat, e
heats the steam as it passes through the coil in the twyer with a portion or air,
steam being heated to a certain heat becomes a most powerful gas for heating
purposes, & this in combination with oil is very effective in smelting or heating.
By forcing the oil direct into the steam pipe under pressure by a pump or by
gravitation the oil is so mixed with the steam & heated as it passes through the
heated coil into the furnace.
In using air or blast the oil is forced into the blast pipes to be mixed & heated
before entering in the furnace.
Having now particularly described & ascertained the nature of our said in-
vention & in what manner the same is to be performed we declare that what
we claim is:-
First: The heating of air, steam or gas & oil before entering twyers by waste
heat or other means suitable.
Second-Use of oil for smelting or or refining metals.