Rotary piston engine

Claim 1

AN ARRANGEMENT FOR SEALING BETWEEN THE TEETH OF THE INNER PISTON OF A ROTARY PISTON ENGINE AND THE TEETH OF THE OUTER PISTON THEREOF WHILE SIMULTANEOUSLY MAINTAINING THE TEETH OF THE INNER PISTON IN RESILIENT ENGAGEMENT WITH THE TEETH OF THE OUTER PISTON IN ALL RELATIVE POSITIONS OF THE PISTONS COMPRISING: TUBULAR CYLINDRICAL MEANS EXTENDING AXIALLY ALONG THE TIP OF EACH TOOTH OF THE INNER PISTON, EACH TUBULAR MEANS HAVING SUBSTANTIALLY MORE THAN HALF OF THE PERIPHERAL SURFACE THEREOF EXPOSED RADIALLY OUTWARDLY FROM THE TIP OF THE TOOTH ON WHICH IT IS MOUNTED FOR ENGAGEMENT WITH THE TEETH OF THE OUTER PISTON AS THE PISTONS ROTATE, EACH TUBULAR MEANS BEING AXIALLY SLOTTED FROM END TO END ON THE OUTER SIDE OPPOSITE THE PERTAINING TOOTH TO IMPART RESILIENCE TO THE TUBULAR MEANS SO THE TUBULAR MEANS WILL YIELD AS THE REGION OF ENGAGEMENT THEREOF WITH THE TEETH OF THE OUTER PISTON SHIFTS CIRCUMFERENTIALLY OF THE TUBULAR MEANS AS THE PISTONS ROTATE, AND MEANS SECURING EACH TUBULAR MEANS TO ITS PERTAINING TOOTH, SAID SECURING MEANS ENGAGING SAID TUBULAR MEANS ADJACENT TO THE PERTAINING TOOTH AND BEING SPACED FROM THE SLOTTED OUTER SIDE OF THE TUBULAR MEANS, SAID TUBULAR MEANS BEING RELATIVELY THIN WALLED WHEREBY THE SAID OUTER SIDE THEREOF IS RESILIENT IN BOTH THE RADIAL AND THE CIRCUMFERENTIAL DIRECTIONS OF THE INNER PISTON.