This class relates only to gas for heating and illuminating
purposes and includes apparatus, processes, and compositions for
the manufacture of such gas and means for the purification, distribution,
and storage thereof.
(1)
Note. Every plant for producing gas from the combustion of
fuel necessitates the use of a furnace of some sort, and where the invention
alleged includes more than the furnace and extends into apparatus
for treating the gases or modifications of the furnace, adapting
it to treat them, the application belongs in Class 48, whether the
furnace, per se, be a limekiln or a smelting-furnace. In either
case the furnace is merely an element of the plant and if divided
out may be sent to its proper class.
SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
This class does not include the manufacture of gas--such as,
for example, oxygen, ozone, nitrous oxide, carbonic-acid gas, and
chemical gases in general. These are not heating or illuminating
gases. Gases consisting of a single "pure" carbon
compound and a process for synthesizing such a compound where the
intent is to recover the compound, per se, are in Class 260, Chemistry
of Carbon Compounds, its daughter Classes 530-570, or Class 585,
Chemistry of Hydrocarbon Compounds.
This class does not include charging and discharging devices
for retorts, nor does it include charging devices for cupola-generators,
such as the well-known bell-and-hopper type. For these two classes
of inventions see Class 202, Distillation: Apparatus, and Class
266, Metallurigical Apparatus, respectively, and Class 414, Material
or Article Handling, subclasses 147+.
This class does not provide for the destruction of gaseous
hazardous or toxic waste. See Class 423, Chemistry of Inorganic
Compounds, subclasses 210-215.5 for the chemical destruction of
gaseous hazardous or toxic waste. Note that subclasses 245.1-245.3
provide for an organic component.
Fuel and Related Compositions, appropriate subclasses for a solid or liquid fuel
composition or a method for making or purifying such composition
which may incidentally produce a burnable gas.
Internal-Combustion Engines, appropriate subclasses for devices for the purpose
set forth above that are claimed in combination with an internal
combustion engine or with any element thereof. This is not intended
to apply to claims which, while in the form of a combination, state
merely the intended use of the device--as, for example, "The
combination, with an internal-combustion engine, of" followed
by words defining the structure of a mixture-producing device not
itself classified in internal-combustion engines.
Devices for producing an explosive mixture from a liquid
hydro-carbon and air or for producing the combustible constituent
for such an explosive mixture, in which the operation of the mixture-producing
device does not necessarily depend upon the suction produced by
an internal-combustion engine, which mixture-producing device is
capable of operation independent of the engine and if continued
in operation would continue to produce an explosive mixture whether
or not the engine continued to operate, go in appropriate subclasses
in this class (48), notwithstanding the fact that the device may
be actually designed for the purpose of supplying an internal-combustion engine
with an explosive mixture and may be operated by such engine.
Devices in which it does not positively appear whether they
are operated by suction produced by an internal-combustion engine
or not, which could be so operated, but which do not necessarily depend
upon suction for their operation, go in appropriate subclasses in
this class (48). These devices ordinarily consist, essentially,
of a chamber containing a liquid hydrocarbon over or through which air
flows, it not positively appearing whether such air is forced through
such chamber as by a pump or is caused to flow therethrough by suction
produced by an engine.
Mineral Oils: Processes and Products,
subclasses 15+ for a mineral oil fuel, and other appropriate subclasses
for a process of deriving or treating a mineral oil in which process
no burnable gas composition is intended to be recovered.
Chemistry of Inorganic Compounds,
subclasses 210 through 215.5for the chemical destruction of gaseous hazardous
or toxic waste, and subclasses 237+ and 352+ for
processes of purifying or producing ammonia involving a chemical
reaction.
Combustion,
subclass 11 for a combustion process involving a gas mixing
or generating step, subclasses 36+ for a burner fed by
a generator with automatic control of the generator; subclasses
203+ for a generating fuel tank and an associated burner;
subclasses 233+ for a system in which a generator feeds
generated gas to an external structure without purification, fixation
or storage of the gas and also feeds gas to the burner heating the
generator; subclasses 207+ for a generator feeding an immediately associated
burner; and subclasses 354+ for a combined burner and mixer.
Chemistry of Hydrocarbon Compounds,
subclass 6 for a blend of gaseous hydrocarbons, subclass 14
for a hydrocarbon fuel and other appropriate subclasses for a process
of deriving or treating a hydrocarbon in which process no burnable
gas composition is intended to be recovered.
Refrigeration,
subclasses 600+ for processes and apparatus, per se, specialized
to the manufacture of a solidified or liquefied product from a gas
by physical treatment.
Connected generators and gas-holders, the pressure in the
generator regulating the supply of water in a to-and-fro or ebb-and-flow
movement to the carbid.
Apparatus and processes in which the acetylene gas is generated
and combined with some aeriform or gaseous fluid. It includes those
in which acetylene gas and another gas are simultaneously generated
in the same or adjacent apparatus or gas is generated and passed
over calcium carbid or mingled with acetylene gas.
Structures whereby water is fed to the carbid. The water
is fed by gravity and controlled by the pressure of the gas in the
generator or by the operation of the gas-holder. It also includes structures
for feeding the water to the carbid by capillary attraction. This
subclass includes generators in which water is fed by gravity to
the top of the carbid and automatically regulated by the gas-pressure
in the generator. A hand-valve is employed to turn on and off the
water-feed.
This subclass is indented under subclass 4. Generators in which the water-feed is regulated by the movement
of the gas-holder. This subclass includes structures whereby the
gas-holder operates a valve which feeds water to the top of the
carbid in the generator.
This subclass is indented under subclass 6. Generators in series of two or more in which the water-feed
is controlled by the gas-holder and automatically directed from
one generator to another.
This subclass is indented under subclass 5. Receptacles for carbid divided into communicating compartments
to which water, fed successively, is controlled by the holder.
This subclass is indented under subclass 5. Receivers to which the after-generation is conducted--that
is, when the gasometer has been filled with gas.
This subclass is indented under subclass 5. Structures feeding water from the gas-holder tank to the
generator, the gas-holder operating a valve located within the tank.
It also includes structures wherein a valved water-tank is located
within or on the gas-holder bell.
This subclass is indented under subclass 5. Cylinders, slatted or otherwise, for carbid which are caused
to rotate by the gas-holder and in which the water-feed is controlled
by the action of the gas-holder. This subclass also includes cylinders
rotated by gravity or hand in which the water-feed is operated by
the gas-holder.
This subclass is indented under subclass 5. Generators to which the water is supplied beneath the upper
surface of the carbid and regulated by the movement of the gas-holder.
This subclass is indented under subclass 5. Apparatus in which no valve is employed to regulate the
feed of water to the generator. It includes means for displacing
water, a flexible tube, a siphon or tilting vessel operated by the gasholder.
(1)
Note. In this subclass, the feed of water is controlled by
the gas-pressure in the generator or holder acting upon the column
of water to be fed. It also includes means carried by the gas-holder
not otherwise classified under the subclasses of "Valveless
feed".
This subclass is indented under subclass 13. Devices, such as a wedge, piston, bucket, float, etc., carried
by the gas-holder for displacing water contained in a tank, causing
it to overflow and pass to the generator.
This subclass is indented under subclass 13. Flexible tubes for feeding water to the generator carried
by the gas-holder connected to and elevated and depressed within
or above and below the water-supply.
This subclass is indented under subclass 13. Generators directly connected to the interior of the gas-holder
and caused to dip in and out of the water in the gasholder tank
to feed water to the interior of the generator.
This subclass is indented under subclass 13. Siphon-tubes carried by the gas-holder for making connections
between the water-tank and the generator for feeding water.
This subclass is indented under subclass 13. Trunnioned or pivoted vessels operated by the gas-holder
so as to discharge water into a pipe leading to the generator.
This subclass is indented under subclass 4. Generators containing carbid to which the water is admitted
by an ebb-and-flow movement produced by the gas-pressure in the
generator.
This subclass is indented under subclass 19. Two or more generators having means for supporting carbid
to which a body of water is supplied from beneath in an ebb-and-flow movement
produced by the pressure of the gas in the generator.
This subclass is indented under subclass 19. Receptacles for carbid divided into separate compartments
or superposed and to which water fed successively from below in
a body is controlled by the pressure of the gas in the generator.
This subclass is indented under subclass 19. Receptacles in the form of a bell and tank stationary one
within the other, and means provided within the bell for supporting
the carbid to which water is fed from beneath by a to-and-fro or
ebb-and-flow motion controlled by the pressure of the gas in the
bell.
This subclass is indented under subclass 4. Receptacles for carbid divided into communicating compartments
to which water is fed successively. The receptacles may be in series.
In this subclass, the water is fed drop by drop to the top of each
successive cell and controlled by the pressure of the gas in the
generator.
This subclass is indented under subclass 4. Generators in which water is supplied to the carbid by capillary
attraction. In this subclass, an absorbent is used to conduct the
water.
This subclass is indented under subclass 25. Structures whereby the absorbent, through which the water
is fed by capillary attraction, may be adjusted to and from the
carbid.
This subclass is indented under subclass 4. Generators wherein means and materials are employed, except
capillary feed, through which water seeps in its passage to the
carbid.
This subclass is indented under subclass 27. Percolating water-feed generators having valves operated
by the pressure of the gas in the generator to regulate the flow
of water.
This subclass is indented under subclass 4. Cans or cases for carbid constructed of telescopic sections,
each having a closed end, one of which sections may be spring-pressed
or it may be an open-top can containing carbid in which is placed
a follower which may be spring or weight-pressed.
This subclass is indented under subclass 4. Vessels constructed of flexible elastic material for feeding
water to the carbid, the pressure in the generator causing a to-
and-fro movement.
This subclass is indented under subclass 4. Vessels divided by a partition-wall into two communicating
compartments, one of the compartments connecting with the generator
to supply water thereto and receive gas therefrom, the pressure
of the gas in the generator and compartment regulating the water-feed
to the generator and causing the water to flow to and from the second
compartment.
This subclass is indented under subclass 4. Trunnioned receptacles provided with a support for the carbid
and means to oscillate the same, whereby water in the lower part
of the receptacle may be intermittently brought in contact with
the carbid.
This subclass is indented under subclass 4. Cylinders of or for containing carbid, caused to rotate
or oscillate, whereby the hydrate, due to decomposition of the carbid
and water, is removed by agitation. This subclass includes cylinders,
slatted or otherwise, rotated or oscillated by hand or gravity,
also cylinders composed of carbid, and cylindrical carriers for carbid-packages.
This subclass is indented under subclass 4. Generators to which the water is supplied within and beneath
the upper surface of the carbid, drop by drop.
This subclass is indented under subclass 4. Devices for preventing accidents in the handling of the
generator, including means for interlocking two or more valves or
means which extend over or secure the cover to the generator and
simultaneously operate either one or more of the following valves:
the gas-outlet valve, the water-inlet valve, or the sludge-valve;
or vent the generator.
Generators containing water into which the carbid is fed.
This subclass contains generators to which the carbid is fed not
otherwise classified under the various subclasses of "Carbid-feed".
Article Dispensing, appropriate subclasses for article feeding subcombination,
per se, Class 48 having only significant generator combinations
or feeding subcombinations so specialized to the performance of
the generating function as to preclude classification in a general
dispensing art.
Dispensing, appropriate subclasses for fluent material feeding,
per se, not combined with generator structure or not specialized
for use with generators.
This subclass is indented under subclass 38. Generators in which an endless belt or an apron is employed
to feed the carbid to the water. It does not include aprons or belts
carrying buckets containing measured charges of carbid.
This subclass is indented under subclass 38. Generators in which the carbid is caused to dip in and out
of the water. In this subclass the carbid may be suspended from
or held in suitable means supported by the gas-holder or supported
by a piston or supported by yielding means within the tank.
This subclass is indented under subclass 41. Dip carbid-feed generators wherein the carbid-receptacle
is composed of a number of chambers or compartments which are successively brought
in contact with the water.
This subclass is indented under subclass 38. Carbid-feed generators having flap valves hinged at or near
the mouth of the chute or hopper through which the carbid passes,
automatically operated to feed the carbid.
This subclass is indented under subclass 38. Generator-tanks to which the carbid is fed by hand. In this
subclass, the carbid may be fed loosely or put in holders; does
not include cartridges.
This subclass is indented under subclass 44. Generators provided with suitable means for supporting carbid
which is caused to dip in and out of the water, the carbid being
fed through a hand-operated valve.
This subclass is indented under subclass 38. Means for feeding definite charges of carbid. In this subclass
will be found devices not otherwise classified under "Measured
charges". This subclass includes those structures caused to
reciprocate and discharge in the tank.
This subclass is indented under subclass 46. Includes a series of receptacles arranged on the same horizontal
plane supported by means caused to rotate and discharge the receptacles successively.
The receptacles may be provided with hinged bottoms and means for
securing and releasing the same, or the receptacles may be trunnioned
and provided with means for dumping the same or an endless belt
provided with pockets.
This subclass is indented under subclass 48. Pocket-wheels arranged to rotate on a vertical plane and
discharge successively. The pocket may be provided with lids and
means for opening and closing the same. It also includes an endless
belt having cups or carriers.
This subclass is indented under subclass 46. Receptacles for carbid which have a fixed relation with
the generator. They may be hinged and caused to dump, or they may
be receptacles provided with hinged or sliding bottoms with catches
and releasing means or a receptacle divided by a series of hinged
or sliding shelves with catches and releasing means.
This subclass is indented under subclass 38. Carbid feed generators having a plate arranged beneath the
discharge-opening of the carbid-hopper with an intervening space,
the carbid resting upon the plate. The plate may be in the form
of a disk or curved.
This subclass is indented under subclass 38. Carbid feed generators having valves caused to pass to and
fro or through the discharge-opening of the carbid-hopper in a vertical
plane.
This subclass is indented under subclass 38. Carbid feed generators in which the valve slides upon its
seat distinguished from the structure in ... , in that there is
no intervening space between the valve and the mouth of the hopper
or seat.
Generators in which the valves controlling the water-feed
and the gas outlet are connected so as to open or close simultaneously.
It also includes the simultaneous venting of the generator.
Special Receptacle or Package, particularly
subclass .6 , subclass .7 and subclass 524.1, and the places
specified in the notes to such class and subclasses for other packages
of chemicals.
This subclass is indented under subclass 59. Cartridges in which the carbid is combined with an agglutinating
and protecting substance and formed into briquets, tablets, sticks,
etc.
Plastic and Nonmetallic Article Shaping or Treating:
Processes,
subclass 30 for processes directed to furnace lining formation
or repair and the search notes thereto, and subclasses 31+ for
forming structural installations in situ.
Chemistry: Electrical and Wave Energy, appropriate subclasses, and other related classes
for electrical or wave energy apparatus, excepting radiant energy
apparatus provided for in Class 250, Radiant Energy, specialized
for the preparation of gaseous compounds or elements and involving chemical
reactions which are caused by more than the mere thermal effects of
the electrical or wave energy.
This subclass is indented under subclass 62. Cupola structures provided with a bottom for supporting
the fuel, constructed to rotate or rock. Does not include rotary
grates.
This subclass is indented under subclass 62. Cupola structures having an open bottom and a basin or trough
for water, forming a seal for closing said open bottom and through
which the ash is removed.
This subclass is indented under subclass 62. Cupola structures in which coal is distilled or gasified
and into which steam or water is injected and decomposed and into
which oil or oil-vapor is also injected. The oil-vapor may be added
to the coal and water gas outside of the distilling chamber.
This subclass is indented under subclass 62. Generators in the form of a cupola or shaft in which coal
is distilled or gasified and into which oil or oil-vapor is introduced
or oil-gas is added.
This subclass is indented under subclass 62. Cupola structures in which coal is distilled or gasified
and into which steam is injected and decomposed. Water-gas may be
made separately and added to the coal-gas.
This subclass is indented under subclass 62. Cupola structures having a filling of refractory material,
such as brick, so as to be heated to a high temperature.
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