Fluid pressure motor construction

Claim 1

IN A FLUID PRESSURE SERVOMOTOR AND THE LIKE: A STAMPED OPEN ENDED SHEET METAL SHELL FORMING AN AXIALLY EXTENDING INTERNAL CHAMBER OF PREDETERMINED UNIFORM CROSS SECTION ADJACENT ITS OPEN END, ABUTMENT MEANS AROUND THE INTERNAL PERIPHERY OF SAID SHELL AND SPACED A PREDETERMINED DISTANCE FROM SAID OPEN END OF SAID SHELL, SAID SHELL BEING SLIT AT GENERALLY EQUALLY SPACED INTERVALS AROUND THE PERIPHERY OF SAID UNIFORM SECTION OF SAID SHELL A PREDETERMINED DISTANCE AXIALLY OUTWARDLY OF SAID ABUTMENT MEANS TO PROVIDE BENDABLE PORTIONS OF SAID SHELL BETWEEN SAID SLITS AND ITS OPEN END, SAID PORTIONS BEING BENT RADIALLY INWARDLY, AN END COVER PLATE HAVING A CYLINDRICALLY SHAPED PERIPHERAL EDGE AND HAVING A SLIDING FIT WITH RESPECT TO THE INSIDE PREDETERMINED CROSS SECTION OF SAID SHELL, THE PERIPHERY OF SAID COVER PLATE BEING NOTCHED RADIALLY INWARDLY AT INTERVALS MATCHING SAID BENT PORTIONS OF SAID SHELL TO BE CAPABLE OF RECEIVING SAID BENT PORTIONS, AND A MOVABLE WALL IN SAID CHAMBER AND HAVING A DIAPHRAGM PORTION THE OUTER EDGE OF WHICH IS OPERATIVELY CLAMPED BETWEEN SAID ABUTMENT MEANS AND SAID RADIALLY INWARDLY BENT PORTIONS OF SAID SHELL EXTENDING RADIALLY INWARDLY OVER THE AXIALLY OUTER FACE OF SAID CYLINDRICALLY SHAPED PERIPHERAL EDGE OF SAID COVER PLATE INTERMEDIATE SAID NOTCHES TO LOCK SAID COVER PLATE TO SAID SHELL.