|  | C |
SECTION C — CHEMISTRY AND METALLURGY

|  | C |
Note(s) Definitions for Section C: Alkali metals: Li, Na, K, Rb, Cs, Fr Alkaline earth metals: Ca, Sr, Ba, Ra Lanthanides: elements with atomic numbers 57 to 71 inclusive Rare earths: Sc, Y, Lanthanides Actinides: elements with atomic numbers 89 to 103 inclusive Refractory metals: Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W Halogens: F, Cl, Br, I, At Noble gases: He, Ne, Ar, Kr, Xe, Rn Platinum group: Os, Ir, Pt, Ru, Rh, Pd Noble metals: Ag, Au, Platinum group Light metals: alkali metals, alkaline earth metals, Be, Al, Mg Heavy metals: metals other than light metals Iron group: Fe, Co, Ni Non-metals: H, B, C, Si, N, P, O, S, Se, Te, noble gases, halogens Metals: elements other than non-metals Transition elements: elements with atomic numbers 21 to 30 inclusive, 39 to 48 inclusive, 57 to 80 inclusive, 89 upwards

CHEMISTRY

|  | C10 |
PETROLEUM, GAS AND COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT

|  | C10H |
PRODUCTION OF ACETYLENE BY WET METHODS; ITS PURIFICATION

|  | C10H 1/00 |
Acetylene gas generators with dropwise, gravity, non-automatic water feed (valves, cocks, per se, Fulltext... Hierarchy... Expanded...F16K)

|  | C10H 1/02 |
· | Valves

|  | C10H 1/04 |
· · | Screw valves

|  | C10H 1/06 |
· · | Cocks

|  | C10H 1/08 |
· | Other means for controlling the water feed

|  | C10H 1/10 |
· | Water feed from above through a central or lateral pipe

|  | C10H 1/12 |
· | Water feed from above through porous materials

|  | C10H 3/00 |
Acetylene gas generators with automatic water feed regulation by means independent of the gas-holder

|  | C10H 3/02 |
· | with membranes

|  | C10H 3/04 |
· | with floats

|  | C10H 3/06 |
· | with pistons

|  | C10H 5/00 |
Acetylene gas generators with automatic water feed regulation by the gas-holder

|  | C10H 5/02 |
· | with overflow for the water

|  | C10H 5/04 |
· | by drop-by-drop water valves connected with the gas-holder

|  | C10H 5/06 |
· · | by drop-by-drop water cocks connected with the gas-holder

|  | C10H 5/08 |
· | with gas-holder-connected water valves or cocks according to the submersion system

|  | C10H 7/00 |
Acetylene gas generators with water feed by Kipp's principle

|  | C10H 7/02 |
· | with water feed from below

|  | C10H 7/04 |
· | with water feed from above

|  | C10H 9/00 |
Acetylene gas generators according to Dobereiner's principle with fixed carbide bell

|  | C10H 9/02 |
· | with water feed from below through porous materials (by capillary feed)

|  | C10H 9/04 |
· | with gas cock actuated by the gas-holder

|  | C10H 9/06 |
· | with the depth of the gas outlet pipe regulated by the gas-holder

|  | C10H 9/08 |
· | with movable gas-holder

|  | C10H 9/10 |
· | by wetting the carbide only at the bottom

|  | C10H 11/00 |
Acetylene gas generators with submersion of the carbide in water

|  | C10H 11/02 |
· | inside the gas-holder

|  | C10H 11/04 |
· | with sealing and reaction water separated from each other

|  | C10H 13/00 |
Acetylene gas generators with combined dipping and drop-by-drop system

|  | C10H 15/00 |
Acetylene gas generators with carbide feed, with or without regulation by the gas pressure

|  | C10H 15/02 |
· | with non-automatic carbide feed

|  | C10H 15/04 |
· · | Closure means at the filling-hopper

|  | C10H 15/06 |
· | with automatic carbide feed by valves

|  | C10H 15/08 |
· · | by flap or slide valves

|  | C10H 15/10 |
· · | by float valves

|  | C10H 15/12 |
· · | by measuring valves, including pocket-wheels

|  | C10H 15/14 |
· | with feed worm or feed conveyers

|  | C10H 15/16 |
· | with feed drums

|  | C10H 15/18 |
· | with movable feed disc and fixed carbide-receptacle

|  | C10H 15/20 |
· | with carbide feed by cartridges or other packets

|  | C10H 15/22 |
· | with carbide feed of pulverous carbide from receptacles or through the gas-holder

|  | C10H 15/24 |
· | with carbide feed by pistons

|  | C10H 17/00 |
High-pressure acetylene gas generators

|  | C10H 19/00 |
Other acetylene gas generators

|  | C10H 19/02 |
· | Rotary carbide receptacles

|  | C10H 21/00 |
Details of acetylene generators; Accessory equipment for, or features of, the wet production of acetylene

|  | C10H 21/02 |
· | Packages of carbide for use in generators, e.g. cartridges

|  | C10H 21/04 |
· · | Placing packages in the generator

|  | C10H 21/06 |
· · · | Opening devices for packages in the generator

|  | C10H 21/08 |
· | Safety devices for acetylene generators

|  | C10H 21/10 |
· | Carbide compositions

|  | C10H 21/12 |
· | Gas-tight sealing means, e.g. liquid seals in generators

|  | C10H 21/14 |
· | Ventilation means; Cooling devices

|  | C10H 21/16 |
· | Removing sludge from generators

|  | C10H 23/00 |
Purification of acetylene gas