Vane type rotary motor for gun

Claim 1

IN COMBINATION, A POWDER GAS MOTOR FOR AN AUTOMATIC GUN COMPRISING AN OUTER HOUSING, A STATIONARY HOUSING WITHIN SAID OUTER HOUSING, THERE BEING AN ANNULAR MANIFOLD IN SAID STATIONARY HOUSING, A FIXED HOUSING IN SAID STATIONARY HOUSING, A ROTOR MOUNTED FOR ROTATION WITHIN SAID INNER HOUSING, THERE BEING AN ANNULAR CHAMBER FORMED BETWEEN THE OUTER PERIPHERAL SURFACE OF SAID ROTOR AND THE INNER PERIPHERAL SURFACE OF SAID FIXED HOUSING, A CLUSTER OF CIRCULARLY ARRANGED GUN BARRELS SUPPORTED IN SAID ROTOR FOR ROTATION THEREWITH, THERE BEING A RADIALLY DISPOSED PORT IN EACH SAID GUN BARREL AND COMMUNICATING WITH SAID MANIFOLD AND A SERIES OF SYMMETRICALLY DISPOSED PORTS COMMUNICATING BETWEEN SAID MANIFOLD AND SAID ANNULAR CHAMBER, MEANS DIVIDING SAID ANNULAR CHAMBER INTO A SERIES OF SEGMENTED CHAMBERS COMPRISING A SERIES OF SYMMETRICALLY SPACED BOSSES INTEGRAL TO THE OUTER PERIPHERAL SURFACE OF SAID ROTOR, EACH SAID BOSS HAVING INCLINED EDGES, SEALING MEANS BETWEEN THE OUTER FACE OF EACH SAID BOSS AND SAID INNER PERIPHERAL SURFACE OF SAID FIXED HOUSING COMPRISING A RECESS IN EACH SAID BOSS AND A WIPER HOUSED IN EACH RECESS AND NORMALLY WIPING SAID INNER PERIPHERAL SURFACE OF SAID FIXED HOUSING AND MEANS HOUSED IN SAID FIXED HOUSING FOR OPENING AND CLOSING SAID PORTS BETWEEN SAID MANIFOLD AND SAID ANNULAR CHAMBER, SAID LAST NAMED MEANS BEING OPERATED BY SAID BOSSES.