IMPROVEMENTS IN APPARATUS FOR LIGHTING, HEATING, VENTILATING, AND COOKING BY GAS, AND PART OF WHICH INVENTION IS APPLICABLE TO HEATING APPARATUSES OF OTHER DESCRIPTIONS
Year: 1860

page_text: PROVISIONAL SPECIFICATION left by James Ferrabee and Henry
Ferrabee at the Office of the Commissioners of Patents, with their
Petition, on the 26th September 1860.
We, JAMES FERRABEE, of Phoenix Ironworks, Stroud, in the County of
Gloucester, Engineer, and HENRY FERRABEE, of Camberwell, in the County of
Surrey, Agent, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN APPARATUS FOR LIGHTING, HEATING, VENTILATING, AND
COOKING BY GAS, AND PART OF WHICH INVENTION IS APPLICABLE TO HEATING
APPARATUSES OF OTHER DESCRIPTIONS" to be as follows:-
Our apparatus for lighting, heating, ventilating, and cooking by gas consists
of two cases, an inner and an outer case, made of suitable materials, and con-
structed so that when placed one within the other there shall be a space
around, above, and below the inner case between it and the outer case. The
cases may be of a cylindrical or other suitable form. The bottom of the outer
case has a regulating valve fitted to it for admitting air, and the top of this case
is fitted so that when it and the valve are closed the case is almost air-tight.
Within the inner case the jets or burners for the gas are placed in connection
with a supply pipe passing through the outer case and in through the close
bottom of the inner case. Suitable apertures are made in the inner case for
the admission of air from the outer case to support the combustion of the gas.
Both cases are constructed to allow of access to the jets or burners for the

page_text: purpose of lighting the gas. To the top of the inner case is fitted a nozzle,
which may be carried through the outer case near the top, or a pipe may be
connected to it and be carried down between the inner and the outer case and
out at the bottom. The nozzle or pipe communicates with a flue or other
outlet, and is fitted with a regulating valve. In constructing the inner and
outer cases we introduce glass, or some other transparent material, in such a
manner as to allow light to be transmitted to a room from the ignited gas
within the inner case.
Action of the apparatus.-When the gas is lighted the regulating valves of
the outer case and of the nozzle are opened, air passes through the valve at the
bottom of the outer case and surrounds the inner case, where it quickly
becomes heated and communicates heat to the outer case, which throws it off into
the room.
The combustion of the gas is supported by the heated air passing
from the outer case through the apertures provided for the purpose in the
inner case, and the products of combustion pass off through the nozzle and
pipe into the flue or other outlet. By these means light is obtained, a genial
and healthy temperature is produced all over a room without any smell what-
ever from the apparatus. Ventilation is accomplished by the atmosphere
being constantly absorbed and changed by the apparatus, and bread may be
baked and various other cooking operations performed in the space between
the inner and the outer case.
When an apparatus is not required to give light, the glass or other trans-
parent material may be dispensed with in the construction. And in con-
structing an apparatus specially for cooking, heating water, or other purposes,
where it is desirable to prevent the heat from being radiated, the outer case
may be made a non-conductor of heat, and there may be one inner case or
more, and the form and arrangement of the cases may be modified in various
ways. And in some instances we make the inner case double, and supply the
chamber thus formed with water. This double case is fitted with inlet and
outlet pipes for connecting to a bath or a cistern, or a range of pipes or other
apparatus requiring warm water, and it may be either wholly or partially
surrounded by an outer case.
We also construct lamps for gas with inner and outer cases of glass, or
glass and metal, or some other material, and fitted with valves or nozzles, as
before described; and we make an apparatus consisting of two or more such
lamps connected with one outlet pipe for carrying off the products of combustion.
Lamps and apparatus thus constructed may be either suspended or supported,
and may be used for heating as well as lighting.

page_text: We also construct a stand, with outlet, by means of which two or more
of the apparatuses herein described may be conveniently and advantageously
used at the same time in connection with one outlet; and such stand being
provided with a receiver for the condensed water or other products resulting
from the slow combustion of coal or other fuel, it is applicable to heating
apparatuses or stoves of other descriptions.