AN IMPROVED METHOD OF AND APPARATUS FOR APPLYING PETROLEUM AND OTHER HYDRO-CARBONS FOR COMBUSTION IN FURNACES FOR THE GENERATION OF STEAM, OR IN OVENS OR FOR OTHER HEATING PURPOSES
Year: 1875

page_text: PROVISIONAL SPECIFICATION left by Robert Walker at the Office
of the Commissioners of Patents, with his, Petition, on the 8th
June 1875. A communication from abroad by Richard de Bergue,
of Paris, in the Republic of France.
.
I, ROBERT WALKER, of Westminster Chambers, Victoria Street, West-
minster, in the County of Middlesex, Contractor and Engineer, do
hereby declare the nature of the said Invention for "AN IMPROVED
METHOD OF AND APPARATUS FOR APPLYING PETROLEUM AND OTHER HYDRO-CARBONS
FOR COMBUSTION IN FURNACES FOR THE GENERATION OF STEAM, OR IN OVENS OR FOR
OTHER HEATING PURPOSES," communicated to me by Richard de Bergue,
of Paris, in the Republic of France, to be as follows':-
The Invention comprises the application and use in combination of
air gas and of petroleum, in a finely divided condition introduced by a
blast of air or steam, or both, for combustion in furnaces or for other
heating purposes. By the expression "air gas" I intend common air
saturated or combined or impregnated with, or carrying with it a
spirituous or combustible vapour or gas, and by the expression
"petroleum" I intend petroleum, coal tar, bog head, schiste, and such

page_text: like or any convenient hydro-carbons, and more particularly those
known commercially under the name of "heavy lubricating oils."
I contemplate the production of the air gas in accordance with the
Specification of former Letters Patent granted to me for "A New Mode
or Method of Applying Atmospheric Gas; Spirituous Vapour or Gas, and
Impregnated Combustible Vapour or Gas as a Heating Medium for the
Generation of Steam or other Purposes'
99 66 (No. 3093, A.D. 1872) " or
in any convenient manner; and I consider it proper to apply the air
gas by forcing or supplying it through tubes with holes or jets in or on
them, the tubes lying parallel to and between but underneath the
furnace bars, over which I place (sometimes) a stratum or layer of
asbestos to absorb and give out the radiated heat.
I contemplate the application of petroleum in a finely divided con-
dition by introducing it in the form of minute globules or spray, by and
together with a blast of air or steam, or both, passing through compound
tuyeres or nozzles directed through the front or sides of the furnace and
above the level or height of the bars. Such compound tuyeres or nozzles
I consider it proper to make thus:-I purpose employing a tapering
nozzle endways (lengthways), on to which I apply a blast pipe for air
or steam, or both, having a tapering end or second nozzle introduced
within the first. In the first are also (sometimes) holes for additional
air to be entered and carried with the blast, and also there is the narrow
end of a third tapering nozzle for petroleum supply directed transversely
with regard to the length of the first. If air or steam or air with steam
be forced through the blast pipe it will suck up or draw and convey
petroleum through the third nozzle, and the petroleum will be what I
term "pulverized or reduced to minute globules or spray, or be
vaporized, and with the blast and with (sometimes) the additional air
will be discharged into the furnace. The petroleum to be so treated is
or may be the residuum or what is left of the petroleum, which has been
already employed in the production of the air gas or of the rectified or
lighter qualities of petroleum spirit.
"