Supersonic centripetal compressor. Vladimir Henry Pavlecka, September 7, 1960: GB847359-A (5 worldwide citation)

847,359. Generating combustion products under pressure. PAULECKA, V. H. Aug. 24, 1956, No. 26012/56. Class 51 (1). [Also in Group XXVI] A toroidal combustion chamber forming part of a jet-propulsion engine (see Group XXVI) extends between, and rotates with, the inner stages of a contra-rotating cent ...