as indestructiDIC WICKS Partitions and the like.
Year: 1888

page_text: as indestructiDIC
WICKS
Partitions and the like.
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We WILLIAM DAVID GOOOH, FREDERICK HENRY VARLEY, and FREDERICK
BARTLETT LIDSTONE, all of 2 Victoria Mansions, Westminster, Engineers do hereby
declare the nature of our said invention to be as follows:-
The object of this invention is to manufacture porous stone in what we term the
dry way; the stone so made has a degree of uniform porosity and high capillary
efficiency so that if used as wicks or burners in oil or spirit lamps the oil or spirit
absorbed by the porous stone which becomes heated shall not by the vapour generated
in the pores of the stone exert sufficient pressure to drive the oil back.
capillary force exerted is sufficient to maintain a constant feed of the combustible
fluid whether the wick or burner be hot or cold."
The
In order to secure uniformity of manufacture and thus more perfect cappillarity
it is necessary that all the ingredients employed should be perfectly mixed and
reduced to a specific fineness as tested by passing through a very fine wire guaze
sieve. The ingredients thus prepared are dried and heated up to a dull red heat or
to such heat as effects a partial fusion of the whole mass, this is then allowed to
cool and is again reduced to powder of proper fineness. This powdered mass is
placed into suitable shaped moulds and heated up to a bright heat which produces
an amalgamation of the particles and constitutes a stone of very fine texture and of a
high degree of capillarity.
The ingredients we employ and find exceedingly effective are as follows:-

page_text: These proportions may however be varied and fine powdered clay or rotton stone
may be used either in addition to or in substitution of the sand and asbestos, or fine
emery or corundum or other refractory material may be used, and instead of employ-
ing borax and lead oxides, finely powdered glass or suitable Flux may be
employed.
The porous material prepared as above stated may be shaped as discs, plates or
plugs and be employed as filtering septums or porous diaphragms.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Porous Artificial Stone for Use
as Indestructible Wicks or Burners for Lamps or as Filter
Partitions and the like.
.
I, WILLIAM DAVID GOOOH, FREDERICK HENRY VARLEY, and FREDERICK BARTLETT
LIDSTONE, all of 2 Victoria Mansions, Westminster, Engineers, 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 this invention, is to manufacture porous stone in what we term the
dry way, the stone so made has a degree of uniform porosity and high capillary
efficiency, so that if used as wicks, or burners in oil, or spirit lamps, the oil or spirit
absorbed by the porous stone, which becomes heated, shall not, by the vapour
generated in the pores of the stone, exert sufficient pressure to drive the oil back.
The capillary force exerted is sufficient to maintain a constant feed of the combustible
fluid, whether, the wick or burner be hot, or cold.
In order to secure uniformity of manufacture and thus, more perfect capillarity,
it is necessary that all the ingredients employed should be perfectly mixed and reduced
to a specific fineness as tested by passing through a fine wire gauze sieve. The
ingredients thus prepared are dried and heated up to dull red heat or to such heat as
effects a partial fusion of the whole mass, this is then allowed to cool and is again
reduced to powder of proper fineness, the powdered mass is placed into suitable shaped
moulds and heated up to a bright heat which produces an amalgamation of the
particles and constitutes a stone of very fine texture- and of a high degree of
capillarity.

page_text: The ingredients we employ and find exceedingly effective are as follows :—
12 Parts by weight of fine Sand
4 Parts by weight of Asbestos
1 Parts by weight of Borax
24 Parts by weight of Red Lead or Litharge.
The proportions may however be varied and fine powdered clay or rotten stone
may be used either in addition to, or in substitution of the sand and Asbestos, or
fine Emery or Corundum, or other refractory material may be used and instead of
employing Borax and lead oxides, finely powdered glass, or suitable flux may be
employed.
The porous material prepared as above stated may be shaped as discs, plates, or
plugs and be employed as filtering septums or porous diaphrograms.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed we declare that what we claim
is:-
The improved method of treating the ingredients named and the manufacture of
porous artificial stone, specially adapted as wicks for oil and spirit lamps, or as a
filtering media, as described..
The 7th day of January 1889.
H: GARDNER,
166, Fleet Street, London,
Agent for the said W. D. Gooch, F. H. Varley,
and F. B. Lidstone.