Method of making bladed rotors for flow machines

Claim 1

A METHOD OF MAKING A COMPOSITE BLADED ROTOR COMPRISING THE STEPS OF FORMING A PLURALITY OF CYLINDRICAL POTS FROM SHEET MATERIAL EACH POT HAVING AN OPEN TOP AND A BOTTOM HAVING ONE CYLINDRICAL END PORTION RADIALLY DISPLACED FROM THE OTHER BY SUBSTANTIALLY THE THICKNESS OF THE WALL OF THE POT, PLACING A SUPPORT ELEMENT AT THE BOTTOM OF EACH POT WITH ONE SURFACE AGAINST THE BOTTOM AND ANOTHER AGAINST THE INSIDE OF THE SIDE WALL OVER SUBSTANTIALLY THE WHOLE BOTTOM PORTION PERIPHERAL EXTENT THEREOF, SHEARING THE CYLINDRICAL WALL OF EACH POT ALONG LINES RUNNING LONGITUDINALLY THEREOF WHILE THE BOTTOM PORTION OF SAID SIDE WALL IS SUPPORTED BY SAID SUPPORT ELEMENT AGAINST PRESSURE SET UP IN SHEARING, SAID SHEARING LEAVING CONTINUOUS CYLINDRICAL PORTIONS AT THE TOP AND BOTTOM OF THE POT, WHILE SIMULTANEOUSLY TWISTING THE PORTIONS OF THE CYLINDRICAL WALL OF EACH POT BETWEEN ADJACENT SHEAR LINES TO FORM ROTOR BLADES AND THEREBY LOCKING THE SUPPORT ELEMENT BETWEEN THE BOTTOM OF THE POT AND THE ADJACENT ENDS OF THE BLADES, FORMING TABS EXTENDING AXIALLY FROM THE OPEN TOP CYLINDRICAL PORTION OF EACH POT, TELESCOPING THE BOTTOM CYLINDRICAL PORTION OF ONE POT WITH THE TOP CYLINDRICAL PORTION OF THE NEXT TO BRING THE BOTTOM OFT HE FIRST POT AGAINST THE BLADES AT THE TOP OF SAID NEXT POT, AND TURNING IN THE TABS OF SAID NEXT POT TO LOCATE BETWEEN THE BLADES OF THE FIRST POT AND HOLD SAID TWO POTS TOGETHER.

Claim 2

A METHOD OF MAKING A COMPOSITE BLADED ROTOR COMPRISING THE STEPS OF FORMING A PLURALITY OF CYLINDRICAL POTS FROM SHEET MATERIAL EACH POT HAVING AN OPEN TOP AND A BOTTOM HAVING ONE CYLINDRICAL END PORTION RADIALLY DISPLACED FROM THE OTHER BY SUBSTANTIALLY THE THICKNESS OF THE WALL OF THE POT, PLACING A SUPPORT ELEMENT AT THE BOTTOM OF EACH POT WITH ONE SURFACE AGAINST THE BOTTOM AND ANOTHER AGAINST THE INSIDE OF THE SIDE WALL OVER SUBSTANTIALLY THE WHOLE BOTTOM PORTION PERIPHERAL EXTENT THEREOF, SHEARING THE CYLINDRICAL WALL OF EACH POT ALONG LINES RUNNING LONGITUDINALLY THEREOF WHILE THE BOTTOM PORTION OF SAID SIDE WALL IS SUPPORTED BY SAID SUPPORT ELEMENT AGAINST PRESSURE SET UP IN SHEARING, SAID SHEARING LEAVING CONTINUOUS CYLINDRICAL PORTIONS AT THE TOP AND BOTTOM OF THE POT, WHILE SIMULTANEOUSLY TWISTING THE PORTIONS OF THE CYLINDRICAL WALL OF EACH POT BETWEEN ADJACENT SHEAR LINES TO FORM ROTOR BLADES AND THEREBY LOCKING THE SUPPORT ELEMENT BETWEEN THE BOTTOM OF THE POT AND THE ADJACENT ENDS OF THE BLADES, FORMING TABS EXTENDING AXIALLY FROM THE OPEN TOP CYLINDRICAL PORTION OF EACH POT, TELESCOPING THE BOTTOM CYLINDRICAL PORTION OF ONE POT WITH THE TOP CYLINDRICAL PORTION OF THE NEXT TO BRING THE BOTTOM OFT HE FIRST POT AGAINST THE BLADES AT THE TOP OF SAID NEXT POT, AND TURNING IN THE TABS OF SAID NEXT POT TO LOCATE BETWEEN THE BLADES OF THE FIRST POT AND HOLD SAID TWO POTS TOGETHER.