Drying kiln

Claim 1

IN A DRY KILN FOR LUMBER AND THE LIKE STACKED FOR CIRCULATION OF AIR THERETHROUGH, AN ELONGATED DRYING CHAMBER HAVING A BASE, SIDE WALLS, ROOF AND END WALLS, SAID CHAMBER INCLUDING FIRST AND SECOND ELONGATED DRYING SECTIONS EXTENDING SIDE BY SIDE LONGITUDINALLY THEREOF AND OPEN TO EACH OTHER, EACH OF SAID FIRST AND SECOND DRYING SECTIONS BEING ADAPTED TO RECEIVE AT LEST ONE LUMBER STACK SUPPORTED BY THE BASE THEREOF AND SPACED FROM A SIDE WALL OF THE CHAMBER, A CIRCULATING FAN AT THE TOP OF EACH DRYING SECTION ARRANGED TO BLOW AIR TRANSVERSELY OF ITS SECTION, THE FAN AT THE TOP OF THE FIRST DRYING SECTION BEING ADAPTED TO BLOW AIR IN A DIRECTION OPPOSITE TO THAT OF THE FAN OF THE SECOND SECTION, A CENTAL HOLLOW BAFFLE OF SUBSTANTIALLY V-SHAPE CROSS SECTION EXTENDING THE LENGTH OF THE DRYING CHAMBERS AND EXTENDING DOWNWARDLY FROM THE CHAMBER ROOF BETWEEN THE FANS AND TERMINATING NEAR THE TOP LEVEL OF THE LUMBER STACKS, SAID CENTRAL BAFFLE HAVING HOLES IN THE V THEREOF FACING GENERALLY TOWARDS THE FANS, OUTLET BAFFLE MEANS COMMUNICATING WITH SAID CENTRAL DUCT AND EXTENDING TO A HOT AIR HEATING DEVICE, INLET DUCT MEANS EXTENDING FROM THE HEATING DEVICE TO AND THROUGHOUT THE LENGTH OF THE DRYING SECTIONS, CIRCULATING MEANS IN THE BAFFLE MEANS ADAPTED TO MOVE AIR FROM THE OUTLET DUCT MEANS THROUGH THE HEATING DEVICE AND THROUGH THE INLET DUCT MEANS, A PLURALITY OF INLET PIPES EXTENDING FOM SAID INLET DUCT MEANS UPWARDLY BETWEEN THE DRYING SECTIONS THROUGHOUT THE LENGTH OF THE LATTER, BRANCH PIPES EXTENDING LATERALLY FROM AN UPPER END OF EACH INLET PIPE IN OPPOSITE DIRECTIONS AND TERMINATING NEAR THE FANS TO SUPPLY