Shroud-blading for turbines or compressors

Claim 1

A SHROUDED BLADING ASSEMBLY FO R ROTARY MACHINES SUCH AS TURBINES AND COMPRESSORS, EACH BLADE BEING COMPOSED OF A MATERIAL HAVING AN INHERENT PROPERTY OF RECOVERY FROM TORSIONAL STRESSING FORCES IMPOSED WITHIN THE ELASTIC LIMIT OF THE MATERIAL, EACH SAID BLADE INCLUDING AS AN INTEGRAL PART THEREOF A SHROUD PLATE CONSTITUTING ITS APPERTAINING PORTION OF THE COMPLETE SHROUD RING ESTABLISHED BY THE ASSEMBLY OF ALL BLADES, SAID SHROUD PLATES HAVING THE CONFIGURATION OF A PARALLELOGRAM AND WITH ADJOINING SIDE FACES THEREOF LYING IN CONTACT WITH EACH OTHER AT AN ANGLE WHICH IS OBLIQUE TO THE AXIS OF ROTATION OF SAID MACHINE, SAID BLADES BEING STRESSED TORSIONALLY FROM AN UNSTRESSED CONDITION BY TORSIONAL FLEXURE OF THE SHANK PORTIONS THEREOF CARRYING SAID SHROUD PLATES RELATIVE TO THE FIXED ROOT PORTIONS OF THE BLADES THEREBY TO ESTABLISH A CONTINUOUS FRICTIONAL PRESSURE ENGAGEMENT BETWEEN THE ADJOINING SIDE FACES OF SAID SHROUD PLATES BROUGHT ABOUT BY THE INHERENT TENDENCY IN THE BLADING TO RECOVER ITS NORMAL UNSTRESSED CONDITION.