Emission electrode system

Claim 1

AN ELECTROSTATIC PRECIPITATOR COMPRISING A CASING ADAPTED TO HAVE A GAS TO BE CLEANED FLOWING THERETHROUGH, A PLURLAITY OF EMITTING AND COLLECTING ELECTRODES IN SAID CASING, MEANS PIVOTALLY SUSPENDING SAID ELECTRODES IN SAID CASING IN ROWS ALIGNED LONGITUDINALLY WITH THE DIRECTION OF FLOW OF GAS TO BE CLEANED, THE ROWS IN A DIRECTION TRANSVERSELY OF THE DIRECTION OF GAS FLOW BEING ARRANGED IN ALTERNATING ROWS OF EMITTING AND COLLECTING ELECTRODES EACH ROW OF SAID EMITTING ELECTRODES COMPRISING A PLURALITY OF LONGITUDINALLY SPACED SUBSTANTIALLY FLAT STRIPS DISPOSED TRANSVERSE TO THE DIRECTION OF FLOW OF THE GAS TO BE CLEANED, INTERCONNECTING STIFFENING MEANS SECURED BETWEEN AND UNITING SAID STRIPS IN PAIRS, SAID STIFFENING MEANS EACH COMPRISING A SHEET METAL MEMBER HAVING AN INTERMEDIATE WEB AND ATTACHMENT ELEMENT ON OPPOSITE SIDES OF SAID INTERMEDIATE WEB, SAID ATTACHMENT ELEMENTS EACH BEING SECURED TO A RESPECTIVE ONE OF SAID STRIPS, RAPPING MEANS OPERATIVELY CONNECTED TO BOTTOM ENDS OF SAID EMITTING AND COLLECTING ELECTRODES AND ARRANGED TO RAP THE ELECTRODES IN THE DIRECTION OF THE LENGTH OF THE ROWS OF ELECTRODES, SAID INTERCONNECTED STIFFENING MEANS FORMING WITH SAID UNITS OF SUFFICIENT RIGIDITY TO PERMIT EFFECTIVE CLEANING OF THE UNITS BY RAPPING THE LOWER ENDS OF THE FULL LENGTH UNITS.