Process for damping mineral fibers to be sprayed in air

Claim 1

IN A PROCESS FOR DELIVERING LOOSE MINERAL FIBERS TO A SPRAYING DEVICE HAVING A HIGH VELOCITY AIR STREAM, THE STEPS OF ARRANGING THE MINERAL FIBERS INTO A RELATIVELY THIN, FALT LAYER ON A MOVABLE SUPPORTING SURFACE, ADVANCING SAID LAYER CONTINUOUSLY BY MOVING THE SURFACE, DAMPENING SAID FIBERS WITH AN ATOMIZED LIQUID AS THE LAYER ADVANCES, SUBSTANTIALLY SEPARATING THE DAMPENED FIBERS FROM EACH OTHER AS THE LAYER ADVANCES AND SIMULTANEOUSLY SCATTERING SAID SEPARATED FIBERS INTO THE UPPER PART OF AN ENCLOSED AIR SPACE WHICH IS OPENED AT ITS LOWER END AND WHICH HAS INTERMEDIATE ITS UPPER AND LOWER ENDS A RESTRICTED OPENING TO THE ATMOSPHERE, ESTABLISHING A DOWNWARDLY FLOWING CURRENT OF AIR IN THE LOWER PART OF SAID AIR SPACE BY CREATING A PARTIAL VACUUM AT THE LOWER END THEREOF, WHEREBY AS SAID SEPARATED FIBERS FALL THROUGH THE UPPER PART OF SAID AIR SPACE AND INTO THE FLOWING CURRENT OF AIR IN THE LOWER PART OF THE AIR SPACE THEY ARE FORCIBLY DELIVERED BY SAID CURRENT OF AIR INTO THE HIGH VELOCITY AIR STREAM OF THE SPRAYING DEVICE.