|
|
| Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
| You are viewing a Class definition. |
CLASS 122, | LIQUID HEATERS AND VAPORIZERS |
| Click here for a printable version of this file | |
SECTION I - CLASS DEFINITION
This class relates to heating liquids, generating vapors from liquids, treating the vapors generated for use, such as superheating or cooling them, and conserving the heat remaining in the liquid or vapor after a part of the heat energy has been made use of for any purpose. To bring a liquid heater into this class, the chamber, receptacle or conduit in which the liquid is heated must be fluid tight.
This class includes combinations of steam superheaters, feed-water heaters, steam separators, condensers, traps, manhole-closures, safety devices, cleaners, and feeders with a boiler when the structure of necessity must form a part of the boiler structure combination, also parts of boilers unless they are of general application.
This class includes water-cooled grates whether or not in connection with a boiler for heating the boiler water. It also includes the boiler and furnace in combination or the boiler alone with the furnace alone.
The liquid containers classified in this class may be heated by solid or fluid fuel burned in any type of furnace or burner, by friction, or by chemical action other than combustion, or by electricity. The heat may be applied directly to the walls of the fluid containing chamber or indirectly by the interposition of a fluid in a distinct and separate chamber, which fluid being heated may impart its heat to the fluid to be finally heated. When the fluid is heated by the interposition of another fluid the heat generator must be a part of the unitary structure of the fluid heater, with one exception--to wit: devices for generating a vapor having a vapor separator within the fluid chamber may be heated indirectly by a fluid, the furnace for heating which does not form part of the unitary structure. The fluid may be heated also by a heat radiating body in either a liquid, or solid state, which body may be either on the inside or on the outside of the fluid chamber; but if said heating body be inside the fluid chamber its nature must be such that it will not mix with the fluid to be heated.
SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
The distinction between water heaters in Classes 122 and 126 is this: The water heaters in Class 122 have a closed water containing chamber or receptacle for holding the water while it is heated or have one or more closed conduits through which the water flows while being heated; but the water heaters in class 126 are of the open type. In Class 122 are classified mechanism for regulating both the inflow of water to the boiler and the burning of the fuel in all cases when steam is generated and also in all cases when water is heated, excepting in devices for heating water where the opening of a valve to permit water to flow through the heater at the same time increases the heat of the heat generator, such devices being classified in Class 126, subclasses 351; but this subclass relates only to the controlling device for the water and fuel. The structure of the water heater or boiler together with such a controlling mechanism are classified in Class 122.
SECTION III - REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
| 15, | Brushing, Scrubbing, and General Cleaning, subclass 104.03 for pipe and tube cleaners generally 314, 316.1+ and 406+ for pipe and tube cleaners and boiler tube blowers using air or steam blast and/or suction. |
| 29, | Metal Working, subclass 890.051 for a method of making a boiler or subclass 890.07 for a method of making a condenser, evaporator, or vaporizer. |
| 60, | Power Plants, where combustion products are used as a motive fluid, subclasses 39.53 through 39.59including addition of steam or water, or subclass 775 including introducing water or steam; or subclasses 641.1-641.15 using natural heat (e.g., sun, air, water, earth, etc.). |
| 68, | Textiles: Fluid Treating Apparatus, having significant structure for fluid treatment of a textile, subclass 15 for a textile fluid treating machine combined with a tank heater, or subclass 222 for an implement to apply steam to a textile. |
| 73, | Measuring and Testing, subclasses 215+ for weir maters combined with feed water heater structures. |
| 99, | Foods and Beverages: Apparatus, subclasses 276 , 277, and 359+ for beverages and food cookers using liquid heaters pertinent to this class; and subclasses 468+ for treatment of dairy food which includes milk treating apparatus using liquid heaters. |
| 116, | Signals and Indicators, for signals. |
| 126, | Stoves and Furnaces, for a water heater or steam generator of an open or unpressurized type, or may be a closed or pressurized type if it is part of the stove or furnace structure, subclass 5 for a cooking and heating stove having a water heater or steam generator; subclasses 20-20.2 for a cooking oven heated by steam or hot water; subclass 31 for a cooking stove having a water heater in a flue extension; subclasses 34 and 35 for a cooking stove having a water back; subclass 101 for a hot air furnace combined with a boiler; subclasses 344-363.1 for a liquid heater that may include a kettle, a steam generator, stove pipe for use with a stove, and a domestic water heater or boiler (e.g., kitchen boiler, range boiler, etc.) for use with a stove or furnace; subclasses 513 and 514 for a fireplace with a liquid heater; subclasses 561-568 for a solar heat collector for a pond or pool; subclasses 569-713 for a solar heat collector that may include a fluid medium; or subclass 714 for a process of heating by using solar heat. |
| 137, | Fluid Handling, subclass 11 for processes for regulating the boiler water level, subclass 94 for the control of the fuel in response to boiler or water heater condition subclasses 156+ for gas pressure discharge of liquid as to a boiler, subclasses 171+ for steam traps, subclasses 386+ for level responsive valves, and subclasses 557 and 558 for pressure and level responsive signals and indicators. |
| 138, | Pipes and Tubular Conduits, appropriate subclasses for the wall structure of a boiler tube or flue; subclasses 89+ for plugs for pipes; and subclasses 98+ for patches for pipes. |
| 165, | Heat Exchange, appropriate subclass, for a heat exchanger, per se. |
| 202, | Distillation: Apparatus, subclasses 152+ for liquid volatilization for the purpose of recovering material from the vapor produced by condensation or absorption. |
| 204, | Chemistry: Electrical and Wave Energy, subclasses 196.01 through 196.38for electrolytic protection apparatus (e.g., to prevent corrosion, scale formation, or other objectionable action upon liquid heaters or vaporizers, etc.). |
| 205, | Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions, subclasses 724 through 740for processes of electrolytic protection of metal objects (e.g., to prevent corrosion, scale formation, or other objectionable action upon liquid heaters or vaporizers, etc.). |
| 210, | Liquid Purification or Separation, subclasses 175+ for a heater or heat exchanger combined with liquid purification means. |
| 219, | Electric Heating, subclasses 281+ for water heaters and steam generators particularly adapted to be heated by an electric heater. |
| 220, | Receptacles, appropriate subclasses, for wall structures of containers of more general utility and for safety devices and for manhole covers. |
| 237, | Heating Systems, for an apparatus or process of heating an enclosure, subclass 7 for a combined radiator and boiler having automatic control, or subclasses 16-18 for a combined boiler and radiator. |
| 264, | Plastic and Nonmetallic Article Shaping or Treating: Processes, subclass 30 for furnace lining formation or repair and see the notes thereto. |
| 411, | Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener, subclass 367 for a threaded fastener and nut having stay bolt spacer sleeve; subclass 370 for a threaded fastener and nut having a stay bolt bearing washer; subclasses 379+ for a threaded stay bolt, per se; and subclass 505 for an unthreaded stay bolt, per se. |
| 417, | Pumps, subclasses 36+ for liquid level control of a pump drive motor, subclasses 108+ for aerated column type pumps wherein is elevated by alternate globules of water and steam and subclasses 118+ for pumping of liquid by supplying or exhausting of gaseous motive fluid to or from a pump chamber. |
| 451, | Abrading, for structural features of a cleaner for a tube or flue. |
| 510, | Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions, subclasses 247+ for compositions for descaling steam boilers or other water containers. |
SECTION IV - GLOSSARY
BOILER
Used as a generic term for a liquid heater. The nature of the liquid heated is immaterial. Whether the liquid heated is conducted from the boiler as liquid or vapor depends upon the amount supplied and the degree of heat attained, and for this reason generally no distinction has been noted in the classification, similar structures being classified together regardless of the ultimate effect. In the type of boilers known as "flashers" this distinction is of importance and provision has been made therefor.
FIRE TUBES
Include both small and large tubes through which the products of combustion pass unless the term "flue" is used with them, in which case "fire tubes" would refer to the small tubes, and "flues" to the large tubes for the products of combustion.
STEAM
To be taken in a generic sense as meaning vapor.
STEAM TUBES
Designate vapor tubes whether the vapor therein be formed from water or any other liquid.
WATER TUBES
Designate tubes, both large and small, through which liquid or vapor passes.
WATER
To be taken in a generic sense as meaning liquid.
SUBCLASSES
1 | PLANTS: | ||||||||||||||
| This subclass is indented under the class definition. Combinations of elements and devices each performing different
functions for the conservation of the heat generated in the furnace,
the ultimate object of which is the production of steam or the heating
of water.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
2 | Garbage: | ||||
| This subclass is indented under subclass 1. Plants for the destruction of garbage relating either to
the arrangement of the boiler or the boiler structure adapted for
this special purpose.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
3 | Motor vehicle: | ||||||
| This subclass is indented under subclass 1. Boiler plants specially adapted for motor vehicles.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||
4 | MISCELLANEOUS: |
| This subclass is indented under the class definition. Boilers and parts thereof not otherwise classifiable. | |
5 | GAS-PRODUCER: | ||||||
| This subclass is indented under the class definition. Subject matter relating to combinations of a gas producing
furnace and boiler when the structure of the boiler is intimately
associated with the producer, so as to form a unitary structure,
the gas from the producer being burned to heat the boiler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||
5.51 | AIR-INJECTED: |
| This subclass is indented under the class definition. Devices for vaporizing a liquid, with means for mingling air therewith in the vaporizer. | |
5.52 | Combustion gas and vapor contact: |
| This subclass is indented under subclass 5.51. Devices wherein the vapor is combined with the byproducts of burning fuels. | |
6 | INDUSTRIAL: | ||||||||||
This subclass is indented under the class definition. Subject matter relating to boilers, water heaters, or cooling
devices for furnace walls having a closed chamber or conduit combined with
a conventional type of furnace employed in a special art.
SEE OR SEARCH CLASS:
| |||||||||||
6.5 | Port: | ||||
| This subclass is indented under subclass 6. Subject matter comprising water circulation devices applied
to the gas or air ports of a furnace.
SEE OR SEARCH CLASS:
| |||||
6.6 | Tuyeres: | ||||
| This subclass is indented under subclass 6. Subject matter comprising conduits for feeding air to furnaces
and provided with a closed water-circulation.
SEE OR SEARCH CLASS:
| |||||
6.7 | Forge: | ||
| This subclass is indented under subclass 6.6. Devices with water circulation, of a type used in a forge
and in which the direction of the air blast is usually vertical.
SEE OR SEARCH CLASS:
| |||
7 | Waste heat: | ||||
| This subclass is indented under subclass 6. Devices comprising combinations of a conventional type of
industrial furnace and a boiler located so as to be heated by the
waste heat of the furnace.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
8 | Water firebox: |
| This subclass is indented under subclass 6. Industrial boilers having a water jacket firebox. | |
9 | Water tube type: |
| This subclass is indented under subclass 8. Industrial boilers including a firebox the walls of which are provided with water containing tubes. | |
10 | FOR FLUID FUEL BURNER: | ||
| This subclass is indented under the class definition. Boilers for generating steam for feeding a fluid fuel burner.
SEE OR SEARCH CLASS:
| |||
11 | ROTARY: |
| This subclass is indented under the class definition. Boilers in which a substantial part or the whole of the fluid-containing chamber is designed to be continuously-rotated while heating the water or generating steam. | |
12 | ROTATABLY SUPPORTED: |
| This subclass is indented under the class definition. Boilers that are supported in bearings so that the whole boiler or a substantial part thereof may be turned on an axis, generally either vertical or horizontal, after its connecting steam and water pipes have been uncoupled. | |
13.01 | STAND BOILER (E.G., WATER HEATER, ETC.): | ||||||||||||||
This subclass is indented under the class definition. Subject matter comprising heating means applied directly
or indirectly to the wall of the fluid containing chamber, where
the fluid is water, to provide hot water for domestic or household
use (e.g., cooking, cleaning, washing, bathing, space heating, etc.).
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
13.3 | And delivery means to dispensing feature: | ||||
| This subclass is indented under subclass 13.01. Subject matter and means to convey the hot water from the
stand boiler to some end use such as a domestic fixture (e.g., faucet,
shower, washing machine, dishwasher, etc.).
SEE OR SEARCH CLASS:
| |||||
14.1 | And condition responsive feature: | ||||||||
| This subclass is indented under subclass 13.01. Subject matter and means to sense a state or change in the
state of the stand boiler or the water heated by the stand boiler
to effect a change in the operation of the stand boiler or the heated
water.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
14.2 | Controls burner: | ||
| This subclass is indented under subclass 14.1. Subject matter wherein the condition responsive feature
effects change in the burner.
SEE OR SEARCH CLASS:
| |||
14.21 | By other than temperature of water: | ||
This subclass is indented under subclass 14.2. Subject matter wherein the condition responsive feature
controls the burner by other than responding to the condition of
the water having a degree of hotness or coldness measured on a definite
scale.
| |||
14.22 | By temperature of water in water containing chamber or external tank: | ||
| This subclass is indented under subclass 14.2. Subject matter wherein the condition responsive feature
controls the burner by responding to the condition of the water
having a degree of hotness or coldness measured on a definite scale
stored in the water containing chamber or a closed receptacle outside
of and for storing water heated by the stand boiler.
SEE OR SEARCH CLASS:
| |||
14.3 | Having water flow control feature: | ||||||||
| This subclass is indented under subclass 14.1. Subject matter wherein the condition responsive feature
includes means to effect direction of movement or quantity of the
water.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
14.31 | Using valve actuated by flow or pressure (e.g., check valve, etc.): | ||
| This subclass is indented under subclass 14.3. Subject matter wherein the water flow control feature is
an element having a definite predetermined motion to open, close,
or partially obstruct a port or passageway and is moved into action
by the movement, quantity, or force per unit area of the liquid.
SEE OR SEARCH CLASS:
| |||
15.1 | Heated by liquid or steam (e.g., indirect heating, etc.): | ||||||
This subclass is indented under subclass 13.01. Subject matter wherein the stand boiler uses a hot fluid
that is shapeless, virtually incompressible, has a definite volume
(e.g., water, etc.) or a vapor emitted from such a fluid to transfer
thermal energy to the water in the stand boiler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
16.1 | Solid fuel burner: | ||||||||||
| This subclass is indented under subclass 13.01. Subject matter wherein the stand boiler is heated by the
solid fuel burner.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||
17.1 | Fluid fuel burner: | ||||
| This subclass is indented under subclass 13.01. Stand boiler wherein the stand boiler is heated by the
fluid fuel burner.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
17.2 | Liquid fuel burner: |
| This subclass is indented under subclass 17.1. Subject matter wherein the fluid fuel is shapeless, virtually incompressible, and has a definite volume. | |
18.1 | Having heat exchange feature: | ||||
| This subclass is indented under subclass 17.1. Subject matter wherein the stand boiler includes means
to transfer heat from the burned fuel directly or through the interposing
fluid to the wall of the water containing chamber without allowing
them to mix.
SEE OR SEARCH CLASS:
| |||||
18.2 | Preheater: | ||||
| This subclass is indented under subclass 18.1. Subject matter wherein the heat exchange feature is used
to transfer heat, usually waste heat, to a fluid (e.g., air, liquid,
water, etc.) before it is heated by the stand boiler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
18.3 | Fire tube or flue surrounded by water containing chamber: | ||||
| This subclass is indented under subclass 18.1. Subject matter wherein the heat exchange feature consists
of the fire tube or flue enclosed on all sides by the water containing
chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
18.31 | Penetrates one side of water chamber to another: |
| This subclass is indented under subclass 18.3. Subject matter wherein the fire tube or flue passes through a wall of the water chamber to an opposing wall. | |
18.4 | Water tube surrounded by burned fuel: | ||
| This subclass is indented under subclass 18.1. Subject matter wherein the heat exchange feature consists
of the water tube enclosed on all sides by the burned fuel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
18.5 | And external water tank: | ||||
| This subclass is indented under subclass 17.1. Subject matter and a closed receptacle outside of and
for storing water heated by the stand boiler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
19.1 | Water containing chamber or external tank having circulation feature within: | ||||||
This subclass is indented under subclass 13.01. Subject matter wherein the water containing chamber or
a closed receptacle outside of and for storing water heated by the
stand boiler having means inside to direct the movement or development
of the water.
SEE OR SEARCH CLASS:
| |||||||
19.2 | And casing feature for stand boiler or external water tank therefor: | ||||||||||
| This subclass is indented under subclass 13.01. Subject matter and covering, jacketing, or sheathing means
for the stand boiler or a closed receptacle outside of and for storing
water heated by the stand boiler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||
20 | SUBSIDIARY: | ||||
| This subclass is indented under the class definition. Steam generators or water heaters located either in the
firebox, combustion chamber, or offtake flue of a furnace whose
main purpose is not for the generation of steam or the heating of water
in such boiler. These boilers may be of any form consisting of
mere pipes or coils, hollow plates, or cylinders with or without
fire flues or tubes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
21 | CHEMICAL: | ||
| This subclass is indented under the class definition. Boilers wholly or partly heated by chemical action other
than that of the combustion of fuel. This subclass includes that
type of liquid heater and steam generator known in the art as "alkali" generators
for steam.
SEE OR SEARCH CLASS:
| |||
22 | FLUID AND SOLID FUEL: | ||||
| This subclass is indented under the class definition. Boilers not otherwise classifiable heated by solid or fluid
fuel or both combined.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
23 | FLUID FUEL: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| This subclass is indented under the class definition. Boilers not otherwise classifiable that are heated by fluid
fuel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
24 | Explosion: | ||
| This subclass is indented under subclass 23. Devices the fuel combustion of which is intermittent and
explosive.
SEE OR SEARCH CLASS:
| |||
25 | Superimposed: |
| This subclass is indented under subclass 23. Devices provided with a plurality of fluid fuel burners one above the other. | |
26 | FRICTION GENERATOR: | ||||||
| This subclass is indented under the class definition. Boilers heated by friction.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||
27 | Surface: |
| This subclass is indented under the class definition. Boilers heated by a noncombustible hot material, such as slag, bars, or pigs of iron, or brick that does not come into contact with the liquid to be heated. | |
28 | Water in contact: | ||
| This subclass is indented under the class definition. Boilers heated by a noncombustible hot material, either
introduced into the water or having the water fed upon the hot material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
29 | ANNULAR FIREBOX: | ||
| This subclass is indented under the class definition. Boilers not otherwise classifiable which have an annular
firebox.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
30 | MAGAZINE: | ||||
| This subclass is indented under the class definition. Boilers having fuel magazines and not otherwise classifiable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
31.1 | INDIRECTLY HEATED SEPARATE INJECTED FLUID: | ||
| This subclass is indented under the class definition. Devices in which heating of a fluid is by the injection
of a hot fluid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
31.2 | Submerged flame: |
| This subclass is indented under subclass 31.1. Devices wherein the hot fluid is produced by an underwater combustion. | |
32 | Surface: | ||||||||||
This subclass is indented under the class definition. Devices having two separate compartments not in communication,
the liquid to be vaporized being in one compartment and heated by
a hot fluid in the other compartment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||
33 | Furnace: |
| This subclass is indented under subclass 32. Devices, provided with a furnace forming a part of the unitary structure. | |
34 | Separator: |
| This subclass is indented under subclass 32. Devices having an internal vapor or steam separator. | |
35 | ACCUMULATOR: | ||
| This subclass is indented under the class definition. Boilers provided with one or more chambers in which the
hot boiler water or steam may be stored when less than the normal
amount of steam is being used, which may serve as a storage reservoir
for heat energy under abnormal demands for steam.
SEE OR SEARCH CLASS:
| |||
36 | AUXILIARY STEAM HEATER: | ||||||||||||
| This subclass is indented under the class definition. Boilers having means for passing exhaust steam through conduits
within the boiler or in surface contact therewith or for passing
live steam generated in the same boiler or in another boiler into
the water in the boiler. This subclass includes processes for getting
up steam by the injection of live steam from one boiler into another
boiler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
37 | COMPARTMENT: | ||||||||
| This subclass is indented under the class definition. Boilers having separate water chambers, which may or may
not be in communication with each other at the top of the boiler.
Theses boilers are designed to be used either as steam boilers
for generating steam at different pressure or for generating steam
and also for heating water when it is desired to have steam for one
purpose and water heating for other purposes, as for instance, using
the steam for one set of radiators and the water for another set,
or for generating steam or hot water for the radiators on one floor
of a building and for generating steam or hot water for radiators
on another floor, with separate circuits to each compartment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
38 | Draft regulator: |
| This subclass is indented under subclass 37. Devices at least one compartment being for heating water to operate a motor for regulating the combustion of the boiler furnace. | |
39 | FILM: | ||||||||
| This subclass is indented under the class definition. Boilers in which the liquid flows over the heating surface
of the boiler in a thin stream and occupies only a limited portion
of the boiler space.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
40 | FLASHER: | ||||||||||
| This subclass is indented under the class definition. Boilers in which liquid is flashed into vapor as soon as
it enters the vapor generating chamber. The liquid may be preheated
in a chamber forming part of the unitary boiler structure or preheated
in a chamber separate from the main vapor generator.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||
41 | Fluid fuel: | ||||
| This subclass is indented under subclass 40. Flash boilers heated by fluid fuel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
42 | FIRE AND WATER TUBE: | ||||||||||||
| This subclass is indented under the class definition. Boilers provided with both water tubes and fire tubes not
otherwise provided for.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
43 | Fluid fuel: |
| This subclass is indented under subclass 42. Devices heated by fluid fuel. | |
44.1 | FIRE TUBE: | ||||||||||
This subclass is indented under the class definition. Boilers having fire tubes not otherwise classifiable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
44.2 | With baffle in flue: |
| This subclass is indented under subclass 44.1. Devices wherein a static structure regulates the fluid flow in a flue. | |
45 | Fluid fuel: | ||
| This subclass is indented under subclass 44. Fire tube boilers heated by fluid fuel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
46 | Magazine: | ||||||
| This subclass is indented under subclass 44. Fire tube boilers having a fuel magazine.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
47 | Horizontal: | ||||||
| This subclass is indented under subclass 44. Devices having a large horizontal flue, not covered by the
definitions of other subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
48 | Vertical: | ||
| This subclass is indented under subclass 44. Devices having a large vertical flue not covered by the
definitions of other subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
49 | Horizontal and vertical: |
| This subclass is indented under subclass 44. Fire tube boilers having both horizontal and vertical fire tubes. | |
50 | Flue: | ||||
| This subclass is indented under subclass 44. Fire tube boilers that are horizontal or somewhat inclined
from the horizontal having fire tubes that communicate with a large
flue within the boiler, that may serve as a firebox.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
51 | Horizontal: | ||||||||
| This subclass is indented under subclass 44. Devices comprising fire tube boilers that are horizontal
not covered by other subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
52 | Plural: | ||
| This subclass is indented under subclass 51. Devices having two or more boilers arranged side by side
or superposed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
53 | Water tube: | ||
| This subclass is indented under subclass 52. Devices with water tubes in various arrangement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
54 | Double outlet: |
| This subclass is indented under subclass 51. Devices with a firebox located midway its ends, having outlets for the products of combustion opposite each other. | |
55 | Cylinder: | ||
This subclass is indented under subclass 51. Subject matter relating to the structure of single cylindrical
boilers.
| |||
56 | Rear of bridge wall: | ||
| This subclass is indented under subclass 51. Devices having a separate and distinct boiler section provided
with fire tubes, located beneath the boiler, at the rear of the
bridge wall.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
57 | Alternate smoke return: | ||||
| This subclass is indented under subclass 51. Devices having a two-part water firebox or the equivalent
thereof, with mechanism for passing the products of combustion from
one part of the firebox to the other part, in order that the smoke
may be consumed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
58 | Drop water firebox: | ||||||
| This subclass is indented under subclass 51. Devices having a water firebox united to and extending below
the main body of the boiler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
59 | Circulation conduit: | ||
| This subclass is indented under subclass 58. Devices with a conduit located either inside or outside
the boiler to connect the water firebox with the opposite end of
the boiler to help the circulation of the water.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
60 | Alternate smoke return: | ||||||
| This subclass is indented under subclass 58. Devices made with two compartments, with means for alternately
passing the products of combustion from one compartment to the other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||
61 | Drop water baffle: | ||||
| This subclass is indented under subclass 58. Devices with a water baffle depending from the top of the
firebox, formed either by walls spaced apart or water tubes, or
water tubes combined with fire brick, or water walls.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
62 | Front and rear water baffle: | ||||
| This subclass is indented under subclass 58. Devices with both front and rear water baffles for the products
of combustion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
63 | Front water baffle: |
| This subclass is indented under subclass 58. Devices with a water baffle in the front of the firebox. | |
64 | Interposed combustion chamber: | ||
| This subclass is indented under subclass 58. Devices with a separate combustion chamber between the firebox
and the fire tubes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
65 | Rear water baffle: | ||||||
| This subclass is indented under subclass 58. Devices, with a water baffle in the rear of the firebox.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||
66 | Water coking chamber: | ||||
| This subclass is indented under subclass 58. Devices containing a water-cooled coking chamber for fuel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
67 | Intermediate draft: | ||||
| This subclass is indented under subclass 58. Devices with a plurality of fuel chambers, one of which
at least has a water grate, the products of combustion from the
fuel chambers meeting each other. The fuel chambers are generally superposed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
68 | Water tube: |
| This subclass is indented under subclass 58. Devices with some form of water chamber, conduits or tubes in the firebox. | |
69 | Check-valved: | ||||
| This subclass is indented under subclass 68. Devices with check valves so arranged that water from the
boiler circulates through the chambers, conduits or tubes until
feed water is being fed thereto, when the boiler circulation is cut
off.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
70 | Feeding air: |
| This subclass is indented under subclass 68. Devices with air feeding conduits. | |
71 | Solid baffle: | ||||
| This subclass is indented under subclass 68. Devices with solid baffle brick combined with the tubes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
72 | Projecting into firebox: |
| This subclass is indented under subclass 51. Devices having the end of the boiler projecting into the firebox or overhanging the fire grate. | |
73 | Drop water firebox: |
| This subclass is indented under subclass 72. Devices projecting into a drop water firebox. | |
74 | Drop water firebox: | ||
| This subclass is indented under subclass 51. Devices having a drop water firebox so arranged that the
products of combustion pass a plurality of times through the boiler
or underneath, through or over the boiler, and are discharged at
the outlet flue located at the end of the boiler farthest from the
firebox.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
75 | Return fire tube: | ||||||
| This subclass is indented under subclass 51. Devices so arranged that the products of combustion pass
through the boiler in opposite directions two or more times before
they enter the outlet flue.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
76 | Drop water firebox: |
| This subclass is indented under subclass 75. Devices having a water walled firebox depending from the boiler so arranged that the products of combustion pass directly through the lower tubes and return to the front of the boiler through the upper tubes and are discharged to the outlet flue at this point. | |
77 | Internal water tube: | ||
| This subclass is indented under subclass 76. Devices having water tubes within some of the flues or fire
tubes, which may extend into the firebox.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
78 | Flue: | ||
| This subclass is indented under subclass 75. Devices having a water firebox of the large flue type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
79 | Subjacent water arch: | ||
| This subclass is indented under subclass 51. Devices having a water heating arch, formed of metal walls
spaced apart, located beneath the boiler, extending either only
over the firebox or along the whole combustion chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
80 | Subjacent flue: | ||
| This subclass is indented under subclass 51. Devices having one or more cylindrical sections, provided
with large flues located below the main boiler and in communication
therewith. The large flues generally inclose the fuel grate and
serve as a firebox. At the rear of the large flues there may or
may not be small fire tubes in alinement therewith.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
81 | Subjacent transverse fire tube: | ||
| This subclass is indented under subclass 51. Devices having a water chamber depending from the main boiler,
provided with transverse fire tubes and located in rear of the bridge
wall.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
82 | In communication: | ||
| This subclass is indented under subclass 51. Devices having a feed water heater located above the main
boiler, in the combustion flue, heated by the products of combustion,
and in open communication with the water space of the boiler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
83 | Transverse diaphragm: | ||||
| This subclass is indented under subclass 51. Devices having compartments separated by metal diaphragms
transversely arranged inside the boiler, or to boilers having a
combustion chamber intermediate the ends, with transverse diaphragms
at each end of the combustion chamber, or to separate boilers in
alinement. This subclass includes patents for progressively heating
water fed to the boiler and also where the diaphragm is only for
supporting the tubes to prevent vibration or where the diaphragms
are for circulation purposes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
84 | Great diameter over firebox: | ||
| This subclass is indented under subclass 51. Devices having two diameters, with that part of the boiler
having the greater diameter over the firebox. The great diameter
is offset from the main boiler, and the offset portion has short fire
tubes passed therethrough, while long fire tubes extend through
the whole length of the boiler. The products of combustion pass
out of the firebox and return through the short tubes in the offset
portion, and then pass in an opposite direction to the other end
of the boiler, where the outlet flue is located, or they may return
and pass through the upper short tubes and leave the boiler at the
outlet flue located at the firebox end.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
85 | Small diameter over firebox: | ||
| This subclass is indented under subclass 51. Devices having two diameters, the small diameter being over
the firebox and the large diameter being beyond the bridge wall.
The offset portion of the large diameter is provided with longitudinally
extending fire tubes, through which the products of combustion from
the firebox pass and then are passed through return fire tubes extending
the whole length of the boiler. The products of combustion may
then pass to the outlet flue at the front end of the boiler, or
they may pass rearwardly above the boiler to the outlet flue located
at the rear end, and in their final rearward passage may pass through
fire tubes in an upwardly offset portion of the boiler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
86 | Water firebox: |
| This subclass is indented under subclass 85. Devices having a water firebox. | |
87 | U-coupling: | ||||
| This subclass is indented under subclass 51. Devices provided with U-shaped couplings connecting the
fire tubes at the ends of the boiler, in order that the products
of combustion may flow back and forth through the fire tubes in
succession.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
88 | Upper drum: | ||
| This subclass is indented under subclass 51. Devices having a superposed horizontal upper-drum.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
89 | Rear of fire tube: |
| This subclass is indented under subclass 51. Devices provided with a water-cooled arch over the combustion chamber at the rear of the fire tubes. This arch may be formed of plates spaced apart or of water tubes or water tubes combined with solid material like firebrick. | |
90 | Water firebox: | ||||||||||||||||
| This subclass is indented under subclass 51. Devices having a water firebox that are not otherwise classified.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||
91 | Trapped circuit: | ||||||
| This subclass is indented under subclass 90. Devices with some form of water heating chamber or conduits
within the firebox, connected in circuit with the main part of the boiler,
with some form of sediment trap in the water circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
92 | Magazine: | ||
| This subclass is indented under subclass 90. Devices provided with a fuel magazine.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
93 | Offset: | ||
| This subclass is indented under subclass 90. Devices, wherein the water firebox is offset at the end
of the boiler so that the products of combustion pass from the firebox
directly into the fire-tubes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
94.1 | Water tube type: |
| This subclass is indented under subclass 93. Devices composed of water tubes in whole or in part. | |
95.1 | Plural with common combustion chamber: | ||||
| This subclass is indented under subclass 90. Devices, having multiple fireboxes and in communication
with a common combustion chamber located between the fireboxes and
the fire tubes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
95.2 | Multiboilers: |
| This subclass is indented under subclass 95.1. Devices having multiple chambers for heating fluids. | |
96 | Superposed: | ||
| This subclass is indented under subclass 90. Devices in which the water fireboxes are superposed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
97 | Downdraft: |
| This subclass is indented under subclass 90. Devices having a downdraft water grate. | |
98 | Updraft: | ||
| This subclass is indented under subclass 90. Devices having an updraft water grate.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
99 | Straddle: |
| This subclass is indented under subclass 90. Devices having water tubes therein straddling the fuel chamber. | |
100 | Interposed flue: | ||
| This subclass is indented under subclass 90. Devices of the water tube type constructed wholly or in
part of water tubes, with an interposed large flue between the firebox
and the fire tubes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
101 | Water smoke box: | ||
| This subclass is indented under subclass 51. Devices having a water cooled smoke-box.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
102 | Over bridge wall: | ||||||
| This subclass is indented under subclass 51. Devices having water tubes extending horizontally over the
bridge wall.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
103 | Rear of fire tube: | ||||||
| This subclass is indented under subclass 51. Devices having water tubes in the rear of the fire tubes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
104 | Over bridge wall: | ||||||
| This subclass is indented under subclass 51. Devices having rearwardly declined water tubes over the
bridge wall.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
105 | Over bridge wall: | ||||
| This subclass is indented under subclass 51. Devices having water tubes inclined rearwardly over the
bridge wall.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
106 | Water wall: | ||
| This subclass is indented under subclass 51. Devices having water walls at the sides, front, or rear
of the boiler, or at all of said locations. The wall may also extend
across the boiler below the combustion chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
107 | Drop water firebox: | ||
| This subclass is indented under subclass 106. Devices having a water walled firebox depending from the
boiler structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
108 | Subjacent water tube: | ||
| This subclass is indented under subclass 106. Devices having some form of water tubes between the walls
in the combustion chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
109 | Inclined: | ||
| This subclass is indented under subclass 44. Devices placed in inclined position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
110 | Horizontal boiler: | ||||||
| This subclass is indented under subclass 44. Subject matter relating to horizontally disposed boilers
having transverse fire tubes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
111 | Vertical boiler: | ||
| This subclass is indented under subclass 44. Subject matter relating to vertical boilers having transverse
fire tubes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
112 | Water firebox: | ||||
| This subclass is indented under subclass 111. Devices having a water firebox.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
113 | Water tube: |
| This subclass is indented under subclass 44. Devices having fire tubes extending transversely through the boiler and also having water tubes in communication with the boiler. | |
114 | Vertical: | ||||||||||||||||||
| This subclass is indented under subclass 44. Devices placed in vertical position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||
115 | Fluid fuel: | ||||||||||||||
| This subclass is indented under subclass 114. Devices heated by fluid fuel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
116 | Central fire dome: |
| This subclass is indented under subclass 114. Devices provided with a large space or dome at the lower end of the boiler, extending into the boiler, located over the firebox, with the tubes disposed around the dome. | |
117 | Central magazine: | ||||||
| This subclass is indented under subclass 114. Devices having a centrally disposed fuel magazine.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
118 | Internal: | ||||
| This subclass is indented under subclass 114. Devices having sleeves, cylinders, or tubes arranged inside
the boiler for aiding the boiler circulation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
119 | Cylinder: |
| This subclass is indented under subclass 114. Devices in vertical cylindrical boilers. | |
120 | Offset firebox: | ||
| This subclass is indented under subclass 114. Devices having an offset firebox out of alinement with the
fire tubes. The firebox is generally of the water firebox type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
121 | Return fire tube: | ||||
| This subclass is indented under subclass 114. Devices provided with fire tubes through which the products
of combustion pass upon leaving the firebox and also fire tubes
through which the products of combustion return to the other end
of the boiler before they enter the outlet flue.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
122 | Water firebox: |
| This subclass is indented under subclass 121. Devices having a water firebox. The return fire tubes may be through the same boiler section or in another boiler section placed beside the other. | |
123 | Separate compartment: | ||||
| This subclass is indented under subclass 114. Devices provided with separate compartments either by diaphragms
extending across the tubes or by complete boiler sections superposed
or placed side by side, and having the feed water introduced into
the compartment farthest from the fire box.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
124 | Side magazine: |
| This subclass is indented under subclass 114. Devices having a fuel magazine disposed on one or more sides of the boiler. | |
125 | Top water chamber: | ||
| This subclass is indented under subclass 114. Devices having a separate water chamber above the steam
space, through which the fire tubes pass to prevent the leaking
of flue joints or to heat feed water.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
126 | Water firebox: | ||||||
| This subclass is indented under subclass 114. Devices having a water firebox.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
127 | Annular: | ||||
| This subclass is indented under subclass 126. Devices in the form of a ring or the like.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
128 | Central magazine: | ||||
| This subclass is indented under subclass 126. Devices having a water firebox and a central fuel magazine.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
129 | Downdraft: | ||
| This subclass is indented under subclass 114. Devices having a downdraft water grate.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
130 | Water tube: | ||
| This subclass is indented under subclass 114. Devices having some form of water tubes, not otherwise provided
for.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
131 | Internal: |
| This subclass is indented under subclass 130. Devices in which the water tubes are within the fire tubes. | |
132 | Radial loop: | ||||
| This subclass is indented under subclass 130. Devices in which the water tubes are looped and arranged
around the boiler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
133 | Spur: |
| This subclass is indented under subclass 130. Devices in which the water tubes are of the spur type. | |
134 | Volute: | ||
| This subclass is indented under subclass 44. Devices in which the tubes are in the form of a volute.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
135.1 | FLUE: | ||||||
| This subclass is indented under the class definition. Boilers having one or more large fire tubes or flues wholly
or partly surrounded by the water space.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
135.2 | Alternative stack: |
| This subclass is indented under subclass 135.1. Devices having a substitute flue or fire tube. | |
135.3 | Sinusoidal flue: |
| This subclass is indented under subclass 135.1. Devices wherein the flue turns back on itself in an undulating manner. | |
136 | Horizontal: | ||||||||
| This subclass is indented under subclass 135. Subject matter placed horizontally, not otherwise provided
for.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
137 | Plural: | ||
| This subclass is indented under subclass 136. A plurality of devices either posited side by side or superposed
one above the other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
138 | Water tube: | ||||||||
| This subclass is indented under subclass 137. Devices having water tubes in communication with the boilers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
139 | Drop water firebox: | ||||
| This subclass is indented under subclass 136. Devices with a drop water firebox at one end of the boiler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
140.1 | Internal water tube: | ||||
| This subclass is indented under subclass 136. Devices having some form of water tubes in the flues.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
140.2 | Having water tube in flue: |
| This subclass is indented under subclass 140.1. Devices wherein the water tube is in the flue. | |
141 | Drop water firebox: | ||
| This subclass is indented under subclass 140. Devices having a drop water firebox with longitudinal water
tubes in the flues.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
142 | Return fire tube: | ||||||
| This subclass is indented under subclass 140. Devices having return fire tubes, with some form of water
tubes within the large flues.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
143 | Spur: |
| This subclass is indented under subclass 140. Devices having spur water tubes in the flue. | |
144 | Subjacent firebox: |
| This subclass is indented under subclass 140. Devices having water tubes in the flue, with a firebox located beneath the boiler. | |
145 | Transverse: | ||
| This subclass is indented under subclass 140. Devices having water tubes extending across the flues and
communicating with the boiler at both ends.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
146 | Drop water firebox: | ||||
| This subclass is indented under subclass 145. Devices having a drop-water-firebox.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
147 | Return fire tube: | ||||
| This subclass is indented under subclass 145. Devices having small fire-tubes, through which the products
of combustion pass, after leaving the large horizontal flues, in
an opposite direction.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
148 | Water firebox: | ||||||
| This subclass is indented under subclass 140. Devices having a water firebox.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
149 | Return fire tube: | ||||||
| This subclass is indented under subclass 136. Devices having horizontally disposed small fire tubes, through
which the products of combustion are returned through the boiler
after leaving the large flues. The firebox is generally located
in the large flues.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
150 | Rear water tube: | ||
| This subclass is indented under subclass 149. Devices with water tubes at the rear of the flues and fire
tubes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
151 | Separate: | ||
| This subclass is indented under subclass 150. Devices having a separate compartment at the rear of the
fire tubes and flues in which feed water may be heated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
152 | Water grate in flue: | ||
| This subclass is indented under subclass 136. Devices with some form of water grate within the flue.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
153 | Water tube: | ||||
| This subclass is indented under subclass 136. Devices having water tubes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
154 | Over bridge wall: | ||||
| This subclass is indented under subclass 153. Devices in which the water tubes extend over the bridge
wall in the flue.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
155.1 | Vertical: | ||
| Subject matter under subclasses 135.1+ placed upright.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
155.2 | With flue baffle: |
| This subclass is indented under subclass 155.1. Device wherein a static structure regulates the fluid flow in a flue. | |
155.3 | Having exterior heating flue: |
| This subclass is indented under subclass 155.1. Devices wherein the flue is located on the outside of a fluid tank. | |
155.4 | Having corrugated flue: |
| This subclass is indented under subclass 155.1. Devices where the flue has parallel and alternating ridges and grooves. | |
155.5 | Having undulating flue: |
| This subclass is indented under subclass 155.1. Devices wherein the flue is shaped in wavelike or sinusoidal form. | |
156 | Fluid fuel: | ||||||||
| This subclass is indented under subclass 155. Vertical flue boilers heated by fluid fuel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
157 | Central magazine: | ||||
| This subclass is indented under subclass 155. Vertical flue boilers having a centrally posited fuel magazine
not otherwise provided for.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
158 | Water jacket: |
| This subclass is indented under subclass 157. Devices in which the magazine is water jacketed. | |
159 | Internal: | ||||
| This subclass is indented under subclass 155. Vertical flue boilers having internal tubes, cylinders,
or sleeves inside the boiler space for increasing the circulation
of water.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
160 | Concentric shell: | ||
| This subclass is indented under subclass 155. Vertical flue boilers comprising a plurality of concentrically
posited annular water shells formed of walls spaced apart.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
161 | Fluid fuel: | ||
| This subclass is indented under subclass 160. Devices heated by fluid fuel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
162 | Central magazine: | ||
| This subclass is indented under subclass 160. Devices having a centrally disposed fuel magazine.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
163 | Exterior drum: | ||
| This subclass is indented under subclass 155. Vertical flue boilers having a steam or water drum located
outside of the main boiler structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
164 | Insulated outlet flue: | ||
| This subclass is indented under subclass 155. Vertical flue boilers having the outlet flue through the
steam space of the boiler provided with a heat insulator to prevent
heating the steam space. This insulator may be of some packing
material or formed by an air chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
165 | Internal water heater: | ||||
| This subclass is indented under subclass 155. Devices within which is some form of water heater other
than water tubes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
166.1 | With internal water tube: | ||||||
| Vertical flue boilers under subclasses 155.1+ having
water tubes within the flue in communication with the boiler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
166.2 | Loop-type tube: |
| This subclass is indented under subclass 166.1. Devices wherein the water tube is folded back and joined at the ends. | |
167 | Fluid fuel: | ||
| This subclass is indented under subclass 166. Devices heated by fluid fuel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
168 | Central magazine: | ||||
| This subclass is indented under subclass 166. Devices with a fuel magazine centrally located in the flue.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
169 | Coil: | ||
| This subclass is indented under subclass 166. Devices having coiled water tubes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
170 | Header: |
| This subclass is indented under subclass 169. Devices in which the coils communicate with headers located within the flue. | |
171 | Contracted inlet: | ||
| This subclass is indented under subclass 166. Devices, with the inlet opening to the flue of smaller diameter
than the flue, and having water tubes within the flue. There may
or may not be a water firebox below the contracted inlet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
172 | Header: | ||||
| This subclass is indented under subclass 166. Devices having water tubes in communication with headers
located within the flue.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
173 | Horizontal spur: | ||||
| This subclass is indented under subclass 166. Devices having horizontal spur water tubes within the flue.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
174 | Internal fire tube: | ||||
| This subclass is indented under subclass 166. Devices in which the water tubes are provided with internal
fire tubes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
175 | Offset water firebox: | ||
| This subclass is indented under subclass 166. Devices provided with an offset water firebox.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
176 | Transverse: |
| This subclass is indented under subclass 166. Devices in which the water tubes extend transversely across the flue and communicating at both ends with the boiler. | |
177 | Fluid fuel: | ||
| This subclass is indented under subclass 176. Devices heated by fluid fuel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
178 | Vertical aligned fire tube: | ||
| This subclass is indented under subclass 166. Devices having small fire tubes in alinement with the flue.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
179 | Fluid fuel: | ||
| This subclass is indented under subclass 178. Devices heated by fluid fuel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
180 | Spur water tube: | ||||||
| This subclass is indented under subclass 178. Devices having spur water tubes within the large flue.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
181 | Vertical spur: | ||
| This subclass is indented under subclass 166. Devices having vertical spur water tubes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
182.1 | With return fire tube: | ||
| Devices under subclasses 155.1+ having small vertical
fire tubes, through which the products of combustion are returned
through the boiler after leaving the large flues. The fire tubes may
be within the same boiler section as the large flue or in a separate
boiler section.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
182.2 | Having symmetrical arrangement of tubes: |
| This subclass is indented under subclass 182.1. Devices wherein the fire tubes are ordered in a balanced relationship. | |
182.3 | Having tubes offset from firebox: |
| This subclass is indented under subclass 182.1. Having tubes offset from firebox: Devices wherein the fire tubes are not directly in line with the combustion chamber. | |
183 | Fluid fuel: | ||
| This subclass is indented under subclass 155. Devices comprising one or more annular chambers having spiral
water passages vertically posited, with or without a fluid fuel
burner.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
184 | Annular firebox: | ||||
| This subclass is indented under subclass 155. Devices having a stand pipe provided with water tubes or
merely a vertical pipe extending downwardly within the flue through
the fuel grate to form an annular firebox.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
185 | Loop: | ||||
| This subclass is indented under subclass 155. Devices having a vertical stand pipe, with looped water
tubes located within the flue.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
186 | Spur: | ||||||
| This subclass is indented under subclass 155. Devices having a stand pipe provided with spur water tubes
located within the flue.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
187 | Transverse fire tube: | ||
| This subclass is indented under subclass 155. Devices having fire tubes extending transversely through
the annular water chamber formed by the inner and outer walls of
the boiler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
188 | Drop water baffle: | ||
| This subclass is indented under the class definition. Horizontal cylindrical boilers provided with a depending
water-cooled baffle for the products of combustion, formed either
of plates spaced apart, water tubes, or the combination of either
of these with firebrick or some solid material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
189 | Water roof: | ||||||||
| This subclass is indented under the class definition. Horizontal cylindrical boilers having an offset subjacent
firebox provided with a water-cooled roof. The firebox in addition
to the water roof may also have one or more of its walls water-cooled,
thereby forming an offset subjacent water firebox.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
190 | Water tube: | ||
| This subclass is indented under the class definition. Horizontal cylindrical boilers having an offset subjacent
firebox having water tubes surrounding the fuel space.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
191 | Beyond bridge wall: | ||
| This subclass is indented under the class definition. Horizontal cylindrical boilers having subsidiary fire tube
section of the boiler beyond the bridge wall. The fire tubes may
be either vertical or horizontal, and if horizontal may extend either
longitudinally or transversely of the boiler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
192 | Water bridge wall: |
| This subclass is indented under the class definition. Horizontal cylindrical boilers having a water-cooled bridge wall. | |
193 | Water firebox: | ||||||||
| This subclass is indented under the class definition. Horizontal cylindrical boilers having a firebox located
beneath one end of the boiler and having one or more water walls
forming the sides of the firebox.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
194 | Water tube type: | ||
| This subclass is indented under subclass 193. Devices having a series of water tubes either embedded in
the walls of the firebox or located just inside the walls surrounding
the fuel space.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
195 | Water tube: | ||||
| This subclass is indented under the class definition. Horizontal cylindrical boilers having some form of water
tubes, water chambers, or drums in communication therewith. The
cylindrical boiler may or may not be provided with fire tubes or
flues.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
196 | Check-valved: | ||
| This subclass is indented under subclass 195. Devices through which the boiler water circulates and is
heated, with check valves so arranged that the feed water when introduced flows
through the tubes and is heated therein and is not permitted to
enter the boiler directly.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
197 | Lateral-longitudinal: |
| This subclass is indented under subclass 195. Devices extending longitudinally on the sides thereof. | |
198 | Lateral-vertical: | ||
| This subclass is indented under subclass 195. Devices arranged vertically on the sides thereof.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
199 | Firebox: | ||
| This subclass is indented under subclass 198. Devices in which the tubes are on each side of the firebox.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
200 | Over fuel grate: |
| This subclass is indented under subclass 195. Devices placed over the fuel grate. | |
201 | Subjacent internal fire tube: | ||
| This subclass is indented under subclass 195. Devices in which the water tubes are provided with internal
fire tubes located in the combustion chamber beneath the boiler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
202 | Trapped circuit: | ||
| This subclass is indented under subclass 195. Devices having a water tube heating circuit provided with
some form of sediment trap in the circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
203 | Downdraft: |
| This subclass is indented under subclass 195. Devices having a down-draft water grate located beneath the boiler. | |
204 | Intermediate draft: | ||
| This subclass is indented under subclass 195. Devices provided with a plurality of fireboxes having fuel
grates, at least one of which is a water-cooled grate, so arranged
that the products of combustion from the fireboxes meet each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
205 | Multiple series: |
| This subclass is indented under subclass 195. Devices having a plurality of fire grates, one or more of which are of the water tube type and so arranged that the products of combustion from one grate pass over or through the other grate. | |
206 | Solid and water bar: | ||
| This subclass is indented under subclass 195. Devices having a fuel grate consisting of solid bars and
water-cooled bars combined.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
207 | Updraft: |
| This subclass is indented under subclass 195. Devices having an updraft water grate located beneath the boiler. | |
208 | Fluid fuel: | ||
| This subclass is indented under the class definition. Boilers comprising flat plates provided with zigzag passages
heated by fluid fuel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
209.1 | SECTIONAL: | ||
| This subclass is indented under the class definition. Boilers made of separate parts generally formed of cast
metal sections and not otherwise classifiable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
209.2 | Feeding air: |
| This subclass is indented under subclass 209.1. Devices wherein tubes are provided to admit outside air and allow the escape of this air into the fire box once heated. | |
210 | Fluid fuel: | ||||
| This subclass is indented under subclass 209. Sectional boilers heated by fluid fuel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
211 | Fluid or solid fuel: | ||||
| This subclass is indented under subclass 209. Sectional boilers heated by either solid or fluid fuel or
both combined.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
212.1 | With magazine: | ||
| Sectional boilers under subclasses 209.1 having a fuel storage
area.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
212.2 | With return or alternate flue: |
| This subclass is indented under subclass 212.1. Devices wherein a substitute or return flue is provided to preheat air for combustion. | |
213 | Plural firebox: | ||
| This subclass is indented under subclass 209. Sectional boilers having a plurality of fireboxes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
214 | Superimposed: |
| This subclass is indented under subclass 209. Sectional boilers whose sections are superimposed and lie substantially in a horizontal plane. | |
215 | Central connection: |
| This subclass is indented under subclass 214. Devices the sections being in communication with one another at their centers. | |
216 | Fluid fuel: |
| This subclass is indented under subclass 215. Devices heated by fluid fuel. | |
217 | Water firebox: |
| This subclass is indented under subclass 215. Devices with a water firebox. | |
218 | Water firebox: | ||
| This subclass is indented under subclass 214. Devices with a water firebox.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
219 | Central magazine: | ||
| This subclass is indented under subclass 218. Devices having a central fuel magazine.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
220 | Water firebox: | ||
| This subclass is indented under subclass 214. Devices having water tubes provided with internal fire tubes,
with a water firebox.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
221 | Annularly positioned: |
| This subclass is indented under subclass 209. Sectional boilers having vertically disposed sections around the combustion chamber. | |
222 | Central magazine: |
| This subclass is indented under subclass 221. Devices with a centrally disposed fuel magazine. | |
223 | Longitudinally positioned: |
| This subclass is indented under subclass 209. Sectional boilers having vertical sections extending longitudinally of the boiler. | |
224 | Casing: |
| This subclass is indented under subclass 223. Devices, having an inclosing casing spaced apart from the sections to allow passage for the products of combustion around the sections. | |
| |