Improvements in Apparatus for Supplying Air and Steam to Furnaces so as to Effect a More Complete Combustion of Fuel and Prevent the Formation of Black Smoke.
Year: 1893

page_text: Date of Application, 19th June, 1893
Complete Specification Left, 19th Mar., 1894-Accepted, 5th May, 1894
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Supplying Air and Steam to
Furnaces so as to Effect a More Complete Combustion of Fuel
and Prevent the Formation of Black Smoke.
We, JOHN CLARKSON, of 7 Town Street, Armley, Leeds, Engineer, and
SQUIRE MORTIMER, of 2 West Street, Leeds, Shuttle Maker, do hereby declare
the nature of this invention to be as follows:-
The object of our invention is to effect a more complete combustion of fuel, and
to prevent the formation of black smoke.
According to our invention we employ steam jets or injectors attached to a
small steam pipe or pipes, the steam passing through or into a series of hollow
perforated castings fixed in any suitable position to allow the steam and air to
pass into the furnace, preferably above the fire-bars.
In land boilers we should prefer to introduce the steam and air through the
front plate over the fire hole door. Each jet of steam creates a vacuum in its
hollow perforated casting so causing the air to rush through in such a manner that
the volumes of mixed steam and air are discharged from each hollow perforated
casting into the furnace and mix with the gases in sufficient quantity to cause
complete combustion of the same, thereby preventing the formation of smoke,
considerably improving the draught, and effecting a saving in fuel.
Our said apparatus can be fitted to any description of furnace, for example, in
front and over the fire-bars, of single or double flued boilers, or through hollow
stays in fire boxes of portable or locomotive engines, and vertical boilers, or over
the fire-bars in marine boilers.
Dated this 16th day of June 1893
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent to Applicants.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Supplying Air and Steam to
Furnaces so as to Effect a More Complete Combustion of Fuel
and Prevent the Formation of Black Smoke.
We, JOHN CLARKSON, of 7 Town Street, Armley, Leeds, Engineer, and
SQUIRE MORTIMER, of 2 West Street, Leeds, Shuttle Maker, 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 :-
The object of our invention is to effect a more complete combustion of fuel
and to prevent the formation of black smoke.

page_text: According to our invention we employ steam jets or injectors A attached to
steam pipe or pipes B, the steam passing into and through a series of hollow
perforated castings or bulbs C having tubes D fixed in the front plate E, in any
suitable position, to allow the steam and air to pass into the furnace F, preferably
above the fire-bars or over the fire-hole door. Each steam jet or injector A creates
a vacuum in or forces the air through its hollow perforated casting or bulb C and
tube D at the same time drawing in air through the perforations in such a manner
that the volumes of mixed steam and air are discharged from each hollow perforated
casting or bulb C into the furnace and mix with the gases in sufficient quantity to
cause complete combustion of the same, thereby preventing the formation of
smoke, considerably improving the draught, and effecting a saving in fuel.
Our said apparatus can be fitted to any description of furnace, for example in
front and over the fire-bars of single and double flued boilers, or through hollow
stays in fire boxes of portable or locomotive engines and vertical boilers, or over
the fire-bars in marine boilers. Also to boilers or furnaces fitted with mechanical
stokers, but for this purpose our invention will require modification according to
the mechanical stoker used, some of which take up more of the boiler front than
others. In cases where that part of the front plate over the door is taken up by
the mechanical stoker, we fix the steam pipe B at about the same elevation inside
the furnace, and connect it to pipes turned in (through the front plate) at the sides
of the mechanical stoker, these pipes are connected to the steam supply and to
one or more enlarged perforated hollow castings or bulb C in which the steam and
air are mixed.
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 :-
:-
The combination with a furnace of one or more perforated hollow castings or
bulbs C having tubes D projecting through the front plate E, steam pipes B and
steam jets or injectors A, substantially as and for the purposes set forth.
Dand the 15th
1004
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent to Applicants.
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent to Applicants.