Pneumatic means for feeding cementitious materials

Claim 1

A MACHINE FOR CONTINUOUS FEEDING OF MATERIAL AND PNEUMATIC CONVEYANCE THEREOF COMPRISING A GRAVITY FEED HOPPER, A FLUID SEALED HOUSING WITH A TOP AND A BOTTOM OPENING, SAID HOUSING HAVING SEALED BELL PORTIONS AT EACH END, A ROTOR FORMED WITH A PLURALITY OF ANNULAR CHAMBERS, SAID ROTOR HAVING END PLATES ON EACH END FORMED WITH A PLURALITY OF AIR INLET OPENINGS ADJACENT EACH ROTOR CHAMBER, SAID CHAMBERS BEING FILLED WITH MATERIAL FROM THE HOPPER THROUGH SAID TOP HOUSING OPENING, A THRUST PLATE SEALED AGAINST THE EXTERIOR SURFACE OF EACH ROTOR END PLATE, EACH OF SAID THRUST PLATES HAVING AN OPENING ADJACENT THE PERIPHERAL BOTTOM EDGE THEREOF, A PNEUMATIC PIPE END THREADED INTO SAID THRUST PLATE OPENING, SAID PIPE END BEING IN OPEN ALIGNMENT SUCCESSIVELY WITH AN ADJACENT OPENING IN AN END PLATE OF THE ROTOR AS SAID ROTOR IS REVOLVED, TO THEREBY PRESSURIZE EACH SUCCESSIVE ROTOR CHAMBER WHEN POSITIONED OVER THE BOTTOM HOUSING OPENING, AND END COVER PLATE SEALED TO SAID BELL PORTION OF THE HOUSING, ROTOR DRIVE SHAFTS EXTENDING THROUGH SAID BELL PORTIONS AT EACH END OF THE HOUSING, SAID RESPECTIVE SHAFTS BEING JOURNALLED IN SEALED BEARINGS, SAID BELL PORTIONS EACH BEING FILLED WITH LIQUID LUBRICANT, BRANCH AIR LINES FEEDING INTO EACH BELL PORTION FOR PRESSURIZING SAID LIQUID LUBRICANT, AND FLUID SEAL MEANS BETWEEN ALL INTERCONNECTING PLATES AND SAID ROTOR SHAFTS.