Wood chipper

Claim 1

IN A WOOD CHIPPER EMBODYING ROTARY DISC HAVING ANGULARLY SPACED KNIVES AND ANGULARLY SPACED PASSAGEWAYS THERETHROUGH TOGETHER WITH MEANS TO FEED WOOD TO ONE SIDE OF THE DISC WHEREBY THE WOOD IS CUT INTO CHIPS WHICH PASS THROUGH THE PASSAGEWAYS TO THE OTHER SIDE OF THE DISC, (A) AN OUTER HOUSING SURROUNDING SAID OTHER SIDE OF THE DISC AND SPACED RADIALLY AND OUTWARDLY FROM THE PERIPHERY OF THE DISC, (B) AN ARCUATE WALL SECTION SURROUNDING A PORTION OF SAID OTHER SIDE OF THE DISC INWARDLY OF SAID OUTER HOUSING TO DEFINE A CHIP RECEIVING CHAMBER INWARDLY OF SAID ARCUATE WALL SECTION AND A PLENUM CHAMBER BETWEEN SAID ARCUATE WALL SECTION AND SAID OUTER HOUSING, (C) ANGULARLY SPACED BLADES CARRIED BY SAID OTHER SIDE OF THE DISC AND DISPOSED TO ROTATE WITHIN SAID ARCUATE WALL SECTION WITH A RELATIVELY CLOSE FIT TO CONVEY CHIPS THROUGH SAID CHIP RECEIVING CHAMBER, (D) A TANGENTIAL OUTLET FOR SAID CHIP RECEIVING CHAMBER FOR DISCHARGING CHIPS THEREFROM, (E) A CIRCUMFERENTIAL OUTLET FOR SAID PLENUM CHAMBER ADJACENT AND ALONGSIDE SAID TANGENTIAL OUTLET FOR DISCHARGING AIR THEREFROM, (F) SAID ARCUATE WALL SECTION EXTENDING FROM A POINT ADJACENT SAID TANGENTIAL OUTLET AND SAID CIRCUMFERENTIAL OUTLET TO THE POINT THAT WOOD IS FED TO THE DISC SO THAT THE CHIPS PASS THROUGH SAID CHIP RECEIVING CHAMBER WHILE AIR IS FORCED THROUGH SAID PLENUM CHAMBER, AND (G) A DISCHARGE CONDUIT COMMUNICATING WITH SAID TANGENTIAL OUTLET AND SAID CIRCUMFERENTIAL OUTLET TO RECEIVE CHIPS DISCHARGED THROUGH SAID TANGENTIAL OUTLET AND AIR DISCHARGED THROUGH SAID CIRCUMFERENTIAL OUTLET WHEREBY THE AIR DISCHARGED THROUGH SAID CIRCUMFERENTIAL OUTLET AIDS IN CONVEYING THE CHIPS THROUGH SAID DISCHARGE CONDUIT.