Electric arc lamps

HELECTRICITY H05Electric techniques H05BELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR

H05B31/00Electric arc lamps

H05B31/0003the arc being outside, in the open H05B31/0006with superimposed electrodes H05B31/0009with parallel or oblique disposition of the electrodes; Special form of the electrodes H05B31/0012with a plurality of electrode pairs H05B31/0015with spare electrodes H05B31/0018in a closed vessel H05B31/0021Construction, in particular closure, of the vessel H05B31/0024Outlet valves H05B31/0027with special gasfilling H05B31/003of a special type H05B31/0033with glowrod and candle H05B31/0036for projection, copying or stage lighting H05B31/0039Projectors, the construction of which depends upon the presence of the arc H05B31/0042Mounting; Connecting H05B31/0045of individual lamps; Associated impedances H05B31/0048of plural lamps H05B31/0051Bypassing circuit devices for arc lamps H05B31/0054Short circuit devices for arc lamps H05B31/0057Accessories for arc lamps H05B31/006Electromagnets or armatures; Arc blowing electromagnets H05B31/0063Damping devices H05B31/0066Saving arrangements; Ventilation devices H05B31/0069Vessels; Closing of vessels H05B31/0072Reflectors for arc lamps H05B31/0075Incandescent mantles H05B31/0078Devices for starting or extinguishing H05B31/0081Controlling of arc lamps H05B31/0084with stirrups or levers H05B31/0087with a thread or chain H05B31/009with tightening devices H05B31/0093with a threaded rod H05B31/0096with hydraulic or pneumatic means H05B31/02Details H05B31/04Housings H05B31/06Electrodes H05B31/065for flame arc lamps H05B31/08Carbon electrodes H05B31/10Cored carbon electrodes H05B31/12Beck-effect electrodes H05B31/14Metal electrodes H05B31/16Apparatus or processes specially adapted for manufacturing electrodes H05B31/18Mountings for electrodes Electrode feeding devices H05B31/20Mechanical arrangements for feeding electrodes H05B31/22Electromagnetic arrangements for feeding electrodes H05B31/24Cooling arrangements H05B31/26Influencing the shape of arc discharge by gas blowing devices H05B31/28Influencing the shape of arc discharge by magnetic means H05B31/30Starting Igniting H05B31/305Ignition devices H05B31/32Switching-off H05B31/34Indicating consumption of electrodes H05B31/36having two electrodes in line H05B31/38specially adapted for ac H05B31/40having two electrodes at an angle H05B31/42specially adapted for ac H05B31/44having two parallel electrodes H05B31/46specially adapted for ac H05B31/48having more than two electrodes H05B31/50specially adapted for ac H05B31/52electrodes energised from different phases of the supply