|  | F |
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

|  | F01 - F04 |
Subsection index
MACHINES |
positive displacement |
rotary or oscillating piston |
liquid and elastic fluid or elastic fluid | F01C
liquid only | F04C
reciprocating piston or other |
liquid and elastic fluid or elastic fluid | F01B
liquid only | F04B
non-positive displacement |
liquid and elastic fluid or elastic fluid | F01D
liquid only | F03B
ENGINES |
positive displacement |
rotary or oscillating piston |
liquid and elastic fluid or elastic fluid | F01C
liquid only | F03C
reciprocating piston or other |
liquid and elastic fluid or elastic fluid | F01B
liquid only | F03C
non-positive displacement |
liquid and elastic fluid or elastic fluid | F01D
liquid only | F03B
PUMPS |
positive displacement |
rotary or oscillating piston | F04C
reciprocating piston or other | F04B
non-positive displacement | F04D

LIGHTING; HEATING

|  | F23 |
COMBUSTION APPARATUS; COMBUSTION PROCESSES

|  | F23 |
Note(s) In this class, the following terms or expressions are used with the meanings indicated: "combustion" means the direct combination of oxygen gas, e.g. in air, and a burnable substance. Any other heat-producing combination of chemical substances, e.g. hydrogen peroxide and methane, iron oxide and aluminium, is covered by section C or by subclass Fulltext... Hierarchy... Expanded...F24J; "combustion chamber" means a chamber in which fuel is burned to establish a self-supporting fire or flame and which surrounds that fire or flame; "burner" means a device by which fluent fuel is passed to a combustion space where it burns to produce a self-supporting flame; "air" means a mixture of gases containing free oxygen and able to promote or support combustion.

|  | F23M |
CONSTRUCTIONAL DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR (construction or support of tube walls for steam boilers Fulltext... Hierarchy... Expanded...F22B; generating combustion products of high pressure or high velocity Fulltext... Hierarchy... Expanded...F23R)

P:30 |  | F23M 3/00 |
Firebridges (baffles not confining the fire Fulltext... Hierarchy... Expanded...F23M 9/00)

P:40 |  | F23M 5/00 |
Casings; Linings; Walls (casings, linings, or walls of heat-treatment chambers of ovens, kilns, or retorts Fulltext... Hierarchy... Expanded...F27D)

P:10 |  | F23M 7/00 |
Doors specially adapted for combustion chambers (in general Fulltext... Hierarchy... Expanded...E06B; for flues or smoke-boxes Fulltext... Hierarchy... Expanded...F23J 13/00)

P:20 |  | F23M 9/00 |
Baffles or deflectors for air or combustion products; Flame shields

P:0 |  | F23M 11/00 |
Safety arrangements (by controlling combustion Fulltext... Hierarchy... Expanded...F23N 5/24)

P:50 |  | F23M 13/00 |
Other details [3]